Merge branch 'master' into 2826-remove-view-globals

* fix(#3077) deleting a directory containing symlink file will delete all content inside the symlink

* fix(#3077): add diagnostic override TODO

---------

Co-authored-by: Alexander Courtis <alex@courtis.org>

.editorconfig

@@ -7,6 +7,9 @@ end_of_line = lf
 [nvim-tree-lua.txt]
 max_line_length = 78
 
+# keep these in sync with .luarc.json
+#   .editorconfig is used within nvim, overriding .luarc.json
+#   .luarc.json is used by style check
 [*.lua]
 indent_style = space
 max_line_length = 140
@@ -18,3 +21,4 @@ continuation_indent = 2
 quote_style = double
 call_arg_parentheses = always
 space_before_closure_open_parenthesis = false
+align_continuous_similar_call_args = true

.github/ISSUE_TEMPLATE/nvt-min.lua

@@ -1,12 +1,12 @@
 vim.g.loaded_netrw = 1
 vim.g.loaded_netrwPlugin = 1
 
-vim.cmd [[set runtimepath=$VIMRUNTIME]]
+vim.cmd([[set runtimepath=$VIMRUNTIME]])
-vim.cmd [[set packpath=/tmp/nvt-min/site]]
+vim.cmd([[set packpath=/tmp/nvt-min/site]])
 local package_root = "/tmp/nvt-min/site/pack"
 local install_path = package_root .. "/packer/start/packer.nvim"
 local function load_plugins()
-  require("packer").startup {
+  require("packer").startup({
     {
       "wbthomason/packer.nvim",
       "nvim-tree/nvim-tree.lua",
@@ -18,21 +18,21 @@ local function load_plugins()
       compile_path = install_path .. "/plugin/packer_compiled.lua",
       display = { non_interactive = true },
     },
-  }
+  })
 end
 if vim.fn.isdirectory(install_path) == 0 then
-  print "Installing nvim-tree and dependencies."
+  print("Installing nvim-tree and dependencies.")
-  vim.fn.system { "git", "clone", "--depth=1", "https://github.com/wbthomason/packer.nvim", install_path }
+  vim.fn.system({ "git", "clone", "--depth=1", "https://github.com/wbthomason/packer.nvim", install_path })
 end
 load_plugins()
 require("packer").sync()
-vim.cmd [[autocmd User PackerComplete ++once echo "Ready!" | lua setup()]]
+vim.cmd([[autocmd User PackerComplete ++once echo "Ready!" | lua setup()]])
 vim.opt.termguicolors = true
 vim.opt.cursorline = true
 
 -- MODIFY NVIM-TREE SETTINGS THAT ARE _NECESSARY_ FOR REPRODUCING THE ISSUE
 _G.setup = function()
-  require("nvim-tree").setup {}
+  require("nvim-tree").setup({})
 end
 
 -- UNCOMMENT this block for diagnostics issues, substituting pattern and cmd as appropriate.
@@ -41,7 +41,11 @@ end
 vim.api.nvim_create_autocmd("FileType", {
   pattern = "lua",
   callback = function()
-    vim.lsp.start { cmd = { "lua-language-server" } }
+    vim.lsp.start {
+      name = "my-luals",
+      cmd = { "lua-language-server" },
+      root_dir = vim.loop.cwd(),
+    }
   end,
 })
 ]]

.github/workflows/ci.yml

@@ -20,45 +20,25 @@ jobs:
     strategy:
       matrix:
         lua_version: [ 5.1 ]
+        luacheck_version: [ 1.2.0 ]
 
     steps:
-      - uses: actions/checkout@v4
+      - name: checkout
+        uses: actions/checkout@v4
 
-      - uses: leafo/gh-actions-lua@v10
+      - name: install lua ${{ matrix.lua_version }}
+        uses: leafo/gh-actions-lua@v11
         with:
           luaVersion: ${{ matrix.lua_version }}
 
-      - uses: leafo/gh-actions-luarocks@v4
+      - name: install luarocks
+        uses: leafo/gh-actions-luarocks@v5
 
-      - run: luarocks install luacheck 1.1.1
+      - name: install luacheck ${{ matrix.luacheck_version }}
+        run: luarocks install luacheck ${{ matrix.luacheck_version }}
 
       - run: make lint
 
-  style:
-    runs-on: ubuntu-latest
-
-    concurrency:
-      group: ${{ github.workflow }}-${{ matrix.emmy_lua_code_style_version }}-${{ github.head_ref || github.ref_name }}
-      cancel-in-progress: true
-
-    strategy:
-      matrix:
-        emmy_lua_code_style_version: [ 1.5.6 ]
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: install emmy_lua_code_style
-        run: |
-          mkdir -p CodeFormat
-          curl -L "https://github.com/CppCXY/EmmyLuaCodeStyle/releases/download/${{ matrix.emmy_lua_code_style_version }}/linux-x64.tar.gz" | tar zx --directory CodeFormat
-
-      - run: echo "CodeFormat/linux-x64/bin" >> "$GITHUB_PATH"
-
-      - run: make style
-
-      - run: make style-doc
-
   check:
     runs-on: ubuntu-latest
 
@@ -69,26 +49,31 @@ jobs:
     strategy:
       matrix:
         nvim_version: [ stable, nightly ]
-        luals_version: [ 3.10.5 ]
+        luals_version: [ 3.15.0 ]
+
+    env:
+      VIMRUNTIME: /home/runner/nvim-${{ matrix.nvim_version }}/share/nvim/runtime
 
     steps:
-      - uses: actions/checkout@v4
+      - name: checkout
+        uses: actions/checkout@v4
 
-      - uses: rhysd/action-setup-vim@v1
+      - name: install nvim ${{ matrix.nvim_version }}
+        uses: rhysd/action-setup-vim@v1
         with:
           neovim: true
           version: ${{ matrix.nvim_version }}
 
-      - name: install luals
+      - name: install lua-language-server ${{ matrix.luals_version }}
         run: |
           mkdir -p luals
           curl -L "https://github.com/LuaLS/lua-language-server/releases/download/${{ matrix.luals_version }}/lua-language-server-${{ matrix.luals_version }}-linux-x64.tar.gz" | tar zx --directory luals
+          echo "luals/bin" >> "$GITHUB_PATH"
 
-      - run: echo "luals/bin" >> "$GITHUB_PATH"
+      - run: make check
-
-      - name: make check
-        env:
-          VIMRUNTIME: /home/runner/nvim-${{ matrix.nvim_version }}/share/nvim/runtime
-        run: make check
 
       - run: make help-check
+
+      - run: make style
+
+      - run: make style-doc

.github/workflows/luarocks-release.yml

@@ -1,9 +1,11 @@
 name: Luarocks Release
+
 on:
   push:
     tags:
-      - 'v[0-9]+.[0-9]+.[0-9]+'
+      - v*
   workflow_dispatch:
+
 jobs:
   luarocks-upload:
     runs-on: ubuntu-latest

.hooks/pre-commit.sh

@@ -1,3 +1,3 @@
-#!/bin/sh
+#!/usr/bin/env sh
 
 make

.luacheckrc

@@ -1,14 +1,15 @@
--- vim: ft=lua tw=80
+local M = {}
 
 -- Don't report unused self arguments of methods.
-self = false
+M.self = false
 
-ignore = {
+M.ignore = {
   "631",  -- max_line_length
 }
 
 -- Global objects defined by the C code
-globals = {
+M.globals = {
   "vim",
-  "TreeExplorer"
 }
+
+return M

.luarc.json

@@ -1,12 +1,23 @@
 {
   "$schema": "https://raw.githubusercontent.com/sumneko/vscode-lua/master/setting/schema.json",
-  "runtime.version": "Lua 5.1",
   "workspace": {
     "library": [
       "$VIMRUNTIME/lua/vim",
       "${3rd}/luv/library"
     ]
   },
+  "format": {
+    "defaultConfig": {
+      "indent_style": "space",
+      "max_line_length": "140",
+      "indent_size": "2",
+      "continuation_indent": "2",
+      "quote_style": "double",
+      "call_arg_parentheses": "always",
+      "space_before_closure_open_parenthesis": "false",
+      "align_continuous_similar_call_args": "true"
+    }
+  },
   "diagnostics": {
     "libraryFiles": "Disable",
     "globals": [],
@@ -33,13 +44,13 @@
       "empty-block": "Any",
       "global-element": "Any",
       "global-in-nil-env": "Any",
-      "incomplete-signature-doc": "None",
+      "incomplete-signature-doc": "Any",
       "inject-field": "Any",
       "invisible": "Any",
       "lowercase-global": "Any",
       "missing-fields": "Any",
       "missing-global-doc": "Any",
-      "missing-local-export-doc": "None",
+      "missing-local-export-doc": "Any",
       "missing-parameter": "Any",
       "missing-return": "Any",
       "missing-return-value": "Any",

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "1.7.1"
+  ".": "1.13.0"
 }

CHANGELOG.md

@@ -1,5 +1,114 @@
 # Changelog
 
+## [1.13.0](https://github.com/nvim-tree/nvim-tree.lua/compare/nvim-tree-v1.12.0...nvim-tree-v1.13.0) (2025-06-14)
+
+
+### Features
+
+* **#3113:** add renderer.icons.folder_arrow_padding ([#3114](https://github.com/nvim-tree/nvim-tree.lua/issues/3114)) ([ea5097a](https://github.com/nvim-tree/nvim-tree.lua/commit/ea5097a1e2702b4827cb7380e7fa0bd6da87699c))
+* **#3132:** add api.node.expand and api.node.collapse ([#3133](https://github.com/nvim-tree/nvim-tree.lua/issues/3133)) ([ae59561](https://github.com/nvim-tree/nvim-tree.lua/commit/ae595611fb2225f2041996c042aa4e4b8663b41e))
+
+
+### Bug Fixes
+
+* "Invalid buffer id" on closing nvim-tree window ([#3129](https://github.com/nvim-tree/nvim-tree.lua/issues/3129)) ([25d16aa](https://github.com/nvim-tree/nvim-tree.lua/commit/25d16aab7d29ca940a9feb92e6bb734697417009))
+* **#2746:** background and right aligned icons in floating windows ([#3128](https://github.com/nvim-tree/nvim-tree.lua/issues/3128)) ([cbc3165](https://github.com/nvim-tree/nvim-tree.lua/commit/cbc3165e08893bb499da035c6f6f9d1512b57664))
+* **#3117:** allow changing filename's casing ([bd54d1d](https://github.com/nvim-tree/nvim-tree.lua/commit/bd54d1d33c20d8630703b9842480291588dbad07))
+* **#3117:** windows: change file/dir case ([#3135](https://github.com/nvim-tree/nvim-tree.lua/issues/3135)) ([bd54d1d](https://github.com/nvim-tree/nvim-tree.lua/commit/bd54d1d33c20d8630703b9842480291588dbad07))
+* **#3122:** remove redundant vim.validate ([#3123](https://github.com/nvim-tree/nvim-tree.lua/issues/3123)) ([e7d1b7d](https://github.com/nvim-tree/nvim-tree.lua/commit/e7d1b7dadc62fe2eccc17d814354b0a5688621ce))
+* **#3124:** fix icon padding for "right_align" placements, notably for dotfiles ([#3125](https://github.com/nvim-tree/nvim-tree.lua/issues/3125)) ([e4cd856](https://github.com/nvim-tree/nvim-tree.lua/commit/e4cd856ebf4fec51db10c69d63e43224b701cbce))
+* **#3124:** prevent empty icons_right_align response from breaking padding ([e4cd856](https://github.com/nvim-tree/nvim-tree.lua/commit/e4cd856ebf4fec51db10c69d63e43224b701cbce))
+* **#3134:** setting one glyph to "" no longer disables others ([#3136](https://github.com/nvim-tree/nvim-tree.lua/issues/3136)) ([ebcaccd](https://github.com/nvim-tree/nvim-tree.lua/commit/ebcaccda1c575fa19a8087445276e6671e2b9b37))
+* **#3143:** actions.open_file.window_picker.exclude applies when not using window picker ([#3144](https://github.com/nvim-tree/nvim-tree.lua/issues/3144)) ([05d8172](https://github.com/nvim-tree/nvim-tree.lua/commit/05d8172ebf9cdb2d140cf25b75625374fbc3df7f))
+* fixes [#3134](https://github.com/nvim-tree/nvim-tree.lua/issues/3134) ([ebcaccd](https://github.com/nvim-tree/nvim-tree.lua/commit/ebcaccda1c575fa19a8087445276e6671e2b9b37))
+* invalid buffer issue ([25d16aa](https://github.com/nvim-tree/nvim-tree.lua/commit/25d16aab7d29ca940a9feb92e6bb734697417009))
+
+## [1.12.0](https://github.com/nvim-tree/nvim-tree.lua/compare/nvim-tree-v1.11.0...nvim-tree-v1.12.0) (2025-04-20)
+
+
+### Features
+
+* add TreePreOpen event ([#3105](https://github.com/nvim-tree/nvim-tree.lua/issues/3105)) ([c24c047](https://github.com/nvim-tree/nvim-tree.lua/commit/c24c0470d9de277fbebecd718f33561ed7c90298))
+
+
+### Bug Fixes
+
+* **#3101:** when renderer.highlight_opened_files = "none" do not reload on BufUnload and BufReadPost ([#3102](https://github.com/nvim-tree/nvim-tree.lua/issues/3102)) ([5bea2b3](https://github.com/nvim-tree/nvim-tree.lua/commit/5bea2b37523a31288e0fcab42f3be5c1bd4516bb))
+* explicitly set `border` to `"none"` in full name float ([#3094](https://github.com/nvim-tree/nvim-tree.lua/issues/3094)) ([c3c1935](https://github.com/nvim-tree/nvim-tree.lua/commit/c3c193594213c5e2f89ec5d7729cad805f76b256))
+* reliably dispatch exactly one TreeOpen and TreeClose events ([#3107](https://github.com/nvim-tree/nvim-tree.lua/issues/3107)) ([3a63717](https://github.com/nvim-tree/nvim-tree.lua/commit/3a63717d3d332d8f39aaf65be7a0e4c2265af021))
+
+## [1.11.0](https://github.com/nvim-tree/nvim-tree.lua/compare/nvim-tree-v1.10.0...nvim-tree-v1.11.0) (2025-02-22)
+
+
+### Features
+
+* **#1984:** add quit_on_open and focus opts to various api.node.open functions ([#3054](https://github.com/nvim-tree/nvim-tree.lua/issues/3054)) ([3281f33](https://github.com/nvim-tree/nvim-tree.lua/commit/3281f331f7f0bef13eb00fb2d5a9d28b2f6155a2))
+* **#3037:** add API node.buffer.delete, node.buffer.wipe ([#3040](https://github.com/nvim-tree/nvim-tree.lua/issues/3040)) ([fee1da8](https://github.com/nvim-tree/nvim-tree.lua/commit/fee1da88972f5972a8296813f6c00d7598325ebd))
+
+
+### Bug Fixes
+
+* **#3045:** wipe scratch buffers for full name and show info popups ([#3050](https://github.com/nvim-tree/nvim-tree.lua/issues/3050)) ([fca0b67](https://github.com/nvim-tree/nvim-tree.lua/commit/fca0b67c0b5a31727fb33addc4d9c100736a2894))
+* **#3059:** test for presence of new 0.11 API vim.hl.range ([#3060](https://github.com/nvim-tree/nvim-tree.lua/issues/3060)) ([70825f2](https://github.com/nvim-tree/nvim-tree.lua/commit/70825f23db61ecd900c4cfea169bffe931926a9d))
+* arithmetic on nil value error on first git project open ([#3064](https://github.com/nvim-tree/nvim-tree.lua/issues/3064)) ([8052310](https://github.com/nvim-tree/nvim-tree.lua/commit/80523101f0ae48b7f1990e907b685a3d79776c01))
+* stl and stlnc fillchars are hidden in window picker ([b699143](https://github.com/nvim-tree/nvim-tree.lua/commit/b69914325a945ee5157f0d21047210b42af5776e))
+* window picker: hide fillchars: stl and stlnc ([#3066](https://github.com/nvim-tree/nvim-tree.lua/issues/3066)) ([b699143](https://github.com/nvim-tree/nvim-tree.lua/commit/b69914325a945ee5157f0d21047210b42af5776e))
+
+## [1.10.0](https://github.com/nvim-tree/nvim-tree.lua/compare/nvim-tree-v1.9.0...nvim-tree-v1.10.0) (2025-01-13)
+
+
+### Features
+
+* **api:** add node.open.vertical_no_picker, node.open.horizontal_no_picker ([#3031](https://github.com/nvim-tree/nvim-tree.lua/issues/3031)) ([68fc4c2](https://github.com/nvim-tree/nvim-tree.lua/commit/68fc4c20f5803444277022c681785c5edd11916d))
+
+
+### Bug Fixes
+
+* **#3015:** dynamic width no longer truncates on right_align icons ([#3022](https://github.com/nvim-tree/nvim-tree.lua/issues/3022)) ([f7b76cd](https://github.com/nvim-tree/nvim-tree.lua/commit/f7b76cd1a75615c8d6254fc58bedd2a7304eb7d8))
+* **#3018:** error when focusing nvim-tree when in terminal mode ([#3019](https://github.com/nvim-tree/nvim-tree.lua/issues/3019)) ([db8d7ac](https://github.com/nvim-tree/nvim-tree.lua/commit/db8d7ac1f524fc6f808764b29fa695c51e014aa6))
+* **#3041:** use vim.diagnostic.get for updating diagnostics ([#3042](https://github.com/nvim-tree/nvim-tree.lua/issues/3042)) ([aae0185](https://github.com/nvim-tree/nvim-tree.lua/commit/aae01853ddbd790d1efd6ff04ff96cf38c02c95f))
+* Can't re-enter normal mode from terminal mode ([db8d7ac](https://github.com/nvim-tree/nvim-tree.lua/commit/db8d7ac1f524fc6f808764b29fa695c51e014aa6))
+* hijack directory "BufEnter", "BufNewFile" events are nested ([#3044](https://github.com/nvim-tree/nvim-tree.lua/issues/3044)) ([39bc630](https://github.com/nvim-tree/nvim-tree.lua/commit/39bc63081605c1d4b974131ebecaea11e8a8595f))
+* view.width functions may return strings ([#3020](https://github.com/nvim-tree/nvim-tree.lua/issues/3020)) ([6b4be1d](https://github.com/nvim-tree/nvim-tree.lua/commit/6b4be1dc0cd4d5d5b8e8b56b510a75016e99746f))
+
+## [1.9.0](https://github.com/nvim-tree/nvim-tree.lua/compare/nvim-tree-v1.8.0...nvim-tree-v1.9.0) (2024-12-07)
+
+
+### Features
+
+* **#2948:** add custom decorators, :help nvim-tree-decorators ([#2996](https://github.com/nvim-tree/nvim-tree.lua/issues/2996)) ([7a4ff1a](https://github.com/nvim-tree/nvim-tree.lua/commit/7a4ff1a516fe92a5ed6b79d7ce31ea4d8f341a72))
+
+
+### Bug Fixes
+
+* **#2954:** more efficient LSP updates, increase diagnostics.debounce_delay from 50ms to 500ms ([#3007](https://github.com/nvim-tree/nvim-tree.lua/issues/3007)) ([1f3ffd6](https://github.com/nvim-tree/nvim-tree.lua/commit/1f3ffd6af145af2a4930a61c50f763264922c3fe))
+* **#2990:** Do not check if buffer is buflisted in diagnostics.update() ([#2998](https://github.com/nvim-tree/nvim-tree.lua/issues/2998)) ([28eac28](https://github.com/nvim-tree/nvim-tree.lua/commit/28eac2801b201f301449e976d7a9e8cfde053ba3))
+* **#3009:** nvim < 0.10 apply view options locally ([#3010](https://github.com/nvim-tree/nvim-tree.lua/issues/3010)) ([ca7c4c3](https://github.com/nvim-tree/nvim-tree.lua/commit/ca7c4c33cac2ad66ec69d45e465379716ef0cc97))
+* **api:** correct argument types in `wrap_node` and `wrap_node_or_nil` ([#3006](https://github.com/nvim-tree/nvim-tree.lua/issues/3006)) ([f7c65e1](https://github.com/nvim-tree/nvim-tree.lua/commit/f7c65e11d695a084ca10b93df659bb7e68b71f9f))
+
+## [1.8.0](https://github.com/nvim-tree/nvim-tree.lua/compare/nvim-tree-v1.7.1...nvim-tree-v1.8.0) (2024-11-09)
+
+
+### Features
+
+* **#2819:** add actions.open_file.relative_path, default enabled, following successful experiment ([#2995](https://github.com/nvim-tree/nvim-tree.lua/issues/2995)) ([2ee1c5e](https://github.com/nvim-tree/nvim-tree.lua/commit/2ee1c5e17fdfbf5013af31b1410e4a5f28f4cadd))
+* **#2938:** add default filesystem_watchers.ignore_dirs = { "/.ccls-cache", "/build", "/node_modules", "/target", } ([#2940](https://github.com/nvim-tree/nvim-tree.lua/issues/2940)) ([010ae03](https://github.com/nvim-tree/nvim-tree.lua/commit/010ae0365aafd6275c478d932515d2e8e897b7bb))
+
+
+### Bug Fixes
+
+* **#2945:** stack overflow on api.git.reload or fugitive event with watchers disabled ([#2949](https://github.com/nvim-tree/nvim-tree.lua/issues/2949)) ([5ad8762](https://github.com/nvim-tree/nvim-tree.lua/commit/5ad87620ec9d1190d15c88171a3f0122bc16b0fe))
+* **#2947:** root is never a dotfile, so that it doesn't propagate to children ([#2958](https://github.com/nvim-tree/nvim-tree.lua/issues/2958)) ([f5f6789](https://github.com/nvim-tree/nvim-tree.lua/commit/f5f67892996b280ae78b1b0a2d07c4fa29ae0905))
+* **#2951:** highlights incorrect following cancelled pick ([#2952](https://github.com/nvim-tree/nvim-tree.lua/issues/2952)) ([1c9553a](https://github.com/nvim-tree/nvim-tree.lua/commit/1c9553a19f70df3dcb171546a3d5e034531ef093))
+* **#2954:** resolve occasional tree flashing on diagnostics, set tree buffer options in deterministic order ([#2980](https://github.com/nvim-tree/nvim-tree.lua/issues/2980)) ([82ab19e](https://github.com/nvim-tree/nvim-tree.lua/commit/82ab19ebf79c1839d7351f2fed213d1af13a598e))
+* **#2961:** windows: escape brackets and parentheses when opening file ([#2962](https://github.com/nvim-tree/nvim-tree.lua/issues/2962)) ([63c7ad9](https://github.com/nvim-tree/nvim-tree.lua/commit/63c7ad9037fb7334682dd0b3a177cee25c5c8a0f))
+* **#2969:** After a rename, the node loses selection ([#2974](https://github.com/nvim-tree/nvim-tree.lua/issues/2974)) ([1403933](https://github.com/nvim-tree/nvim-tree.lua/commit/14039337a563f4efd72831888f332a15585f0ea1))
+* **#2972:** error on :colorscheme ([#2973](https://github.com/nvim-tree/nvim-tree.lua/issues/2973)) ([6e5a204](https://github.com/nvim-tree/nvim-tree.lua/commit/6e5a204ca659bb8f2a564df75df2739edec03cb0))
+* **#2976:** use vim.loop to preserve neovim 0.9 compatibility ([#2977](https://github.com/nvim-tree/nvim-tree.lua/issues/2977)) ([00dff48](https://github.com/nvim-tree/nvim-tree.lua/commit/00dff482f9a8fb806a54fd980359adc6cd45d435))
+* **#2978:** grouped folder not showing closed icon ([#2979](https://github.com/nvim-tree/nvim-tree.lua/issues/2979)) ([120ba58](https://github.com/nvim-tree/nvim-tree.lua/commit/120ba58254835d412bbc91cffe847e9be835fadd))
+* **#2981:** windows: root changed when navigating with LSP ([#2982](https://github.com/nvim-tree/nvim-tree.lua/issues/2982)) ([c22124b](https://github.com/nvim-tree/nvim-tree.lua/commit/c22124b37409bee6d1a0da77f4f3a1526f7a204d))
+* symlink file icons rendered when renderer.icons.show.file = false, folder.symlink* was incorrectly rendered as folder.default|open ([#2983](https://github.com/nvim-tree/nvim-tree.lua/issues/2983)) ([2156bc0](https://github.com/nvim-tree/nvim-tree.lua/commit/2156bc08c982d3c4b4cfc2b8fd7faeff58a88e10))
+
 ## [1.7.1](https://github.com/nvim-tree/nvim-tree.lua/compare/nvim-tree-v1.7.0...nvim-tree-v1.7.1) (2024-09-30)
 
 

CONTRIBUTING.md

@@ -2,7 +2,7 @@
 
 Thank you for contributing.
 
-See [Development](https://github.com/nvim-tree/nvim-tree.lua/wiki/Development) for environment setup, tips and tools.
+See [wiki: Development](https://github.com/nvim-tree/nvim-tree.lua/wiki/Development) for environment setup, tips and tools.
 
 # Tools
 
@@ -12,9 +12,9 @@ Language server: [luals](https://luals.github.io)
 
 Lint: [luacheck](https://github.com/lunarmodules/luacheck/)
 
-Style: [EmmyLuaCodeStyle](https://github.com/CppCXY/EmmyLuaCodeStyle): `CodeCheck`
+Style Fixing: [EmmyLuaCodeStyle](https://github.com/CppCXY/EmmyLuaCodeStyle): `CodeCheck`
 
-nvim-tree.lua migrated from stylua to EmmyLuaCodeStyle ~2024/10. `vim.lsp.buf.format()` may be used as it is the default formatter for luals
+nvim-tree.lua migrated from stylua to EmmyLuaCodeStyle ~2024/10. `vim.lsp.buf.format()` may be used as it is the default formatter for luals, using an embedded [EmmyLuaCodeStyle](https://github.com/CppCXY/EmmyLuaCodeStyle)
 
 You can install them via you OS package manager e.g. `pacman`, `brew` or other via other package managers such as `cargo` or `luarocks`
 
@@ -36,14 +36,14 @@ make lint
 
 ## style
 
-1. Runs CodeCheck using `.editorconfig` settings
+1. Runs lua language server `codestyle-check` only, using `.luarc.json` settings
 1. Runs `scripts/doc-comments.sh` to validate annotated documentation
 
 ```sh
 make style
 ```
 
-You can automatically fix `CodeCheck` issues via:
+You can automatically fix style issues using `CodeCheck`:
 
 ```sh
 make style-fix
@@ -90,6 +90,14 @@ Documentation for options should also be added to `nvim-tree-opts` in `doc/nvim-
 
 When adding or changing API please update :help nvim-tree-api
 
+# Windows
+
+Please note that nvim-tree team members do not have access to nor expertise with Windows.
+
+You will need to be an active participant during development and raise a PR to resolve any issues that may arise.
+
+Please ensure that windows specific features and fixes are behind the appropriate feature flag, see [wiki: OS Feature Flags](https://github.com/nvim-tree/nvim-tree.lua/wiki/Development#os-feature-flags)
+
 # Pull Request
 
 Please reference any issues in the description e.g. "resolves #1234", which will be closed upon merge.

Makefile

@@ -13,11 +13,11 @@ check: luals
 # subtasks
 #
 luacheck:
-	luacheck -q lua
+	luacheck --codes --quiet lua --exclude-files "**/_meta/**"
 
 # --diagnosis-as-error does not function for workspace, hence we post-process the output
 style-check:
-	CodeFormat check --config .editorconfig --diagnosis-as-error --workspace lua
+	@scripts/luals-check.sh codestyle-check
 
 style-doc:
 	scripts/doc-comments.sh

README.md

@@ -162,13 +162,13 @@ nvim-tree exposes a public API. This is non breaking, with additions made as nec
 
 See wiki [Recipes](https://github.com/nvim-tree/nvim-tree.lua/wiki/Recipes) and [Tips](https://github.com/nvim-tree/nvim-tree.lua/wiki/Tips) for ideas and inspiration.
 
-Please raise a [feature request](https://github.com/nvim-tree/nvim-tree.lua/issues/new?assignees=&labels=feature+request&template=feature_request.md&title=) if the API is insufficient for your needs. [Contributions](#Contributing) are always welcome.
+Please raise a [feature request](https://github.com/nvim-tree/nvim-tree.lua/issues/new?assignees=&labels=feature+request&template=feature_request.md&title=) if the API is insufficient for your needs. Contributions are always welcome, see below.
 
 You may also subscribe to events that nvim-tree will dispatch in a variety of situations, see [:help nvim-tree-events](doc/nvim-tree-lua.txt)
 
 ## Contributing
 
-PRs are always welcome. See [wiki](https://github.com/nvim-tree/nvim-tree.lua/wiki/Development) to get started.
+PRs are always welcome. See [CONTRIBUTING](CONTRIBUTING.md) and [wiki: Development](https://github.com/nvim-tree/nvim-tree.lua/wiki/Development) to get started.
 
 See [bug](https://github.com/nvim-tree/nvim-tree.lua/issues?q=is%3Aissue+is%3Aopen+label%3Abug) and [PR Please](https://github.com/nvim-tree/nvim-tree.lua/issues?q=is%3Aopen+is%3Aissue+label%3A%22PR+please%22) issues if you are looking for some work to get you started.
 

lua/nvim-tree.lua

@@ -1,7 +1,4 @@
-local lib = require("nvim-tree.lib")
 local log = require("nvim-tree.log")
-local appearance = require("nvim-tree.appearance")
-local view = require("nvim-tree.view")
 local utils = require("nvim-tree.utils")
 local actions = require("nvim-tree.actions")
 local core = require("nvim-tree.core")
@@ -76,7 +73,8 @@ function M.change_root(path, bufnr)
 end
 
 function M.tab_enter()
-  if view.is_visible({ any_tabpage = true }) then
+  local explorer = core.get_explorer()
+  if explorer and explorer.view:is_visible({ any_tabpage = true }, "nvim-tree.tab_enter") then
     local bufname = vim.api.nvim_buf_get_name(0)
 
     local ft
@@ -91,17 +89,15 @@ function M.tab_enter()
         return
       end
     end
-    view.open({ focus_tree = false })
+    explorer.view:open({ focus_tree = false })
 
-    local explorer = core.get_explorer()
+    explorer.renderer:draw()
-    if explorer then
-      explorer.renderer:draw()
-    end
   end
 end
 
 function M.open_on_directory()
-  local should_proceed = _config.hijack_directories.auto_open or view.is_visible()
+  local explorer = core.get_explorer()
+  local should_proceed = _config.hijack_directories.auto_open or explorer and explorer.view:is_visible(nil, "nvim-tree.open_on_directory")
   if not should_proceed then
     return
   end
@@ -115,27 +111,6 @@ function M.open_on_directory()
   actions.root.change_dir.force_dirchange(bufname, true)
 end
 
-function M.place_cursor_on_node()
-  local ok, search = pcall(vim.fn.searchcount)
-  if ok and search and search.exact_match == 1 then
-    return
-  end
-
-  local node = lib.get_node_at_cursor()
-  if not node or node.name == ".." then
-    return
-  end
-  node = utils.get_parent_of_group(node)
-
-  local line = vim.api.nvim_get_current_line()
-  local cursor = vim.api.nvim_win_get_cursor(0)
-  local idx = vim.fn.stridx(line, node.name)
-
-  if idx >= 0 then
-    vim.api.nvim_win_set_cursor(0, { cursor[1], idx })
-  end
-end
-
 ---@return table
 function M.get_config()
   return M.config
@@ -173,104 +148,9 @@ local function setup_autocommands(opts)
     vim.api.nvim_create_autocmd(name, vim.tbl_extend("force", default_opts, custom_opts))
   end
 
-  -- reset and draw (highlights) when colorscheme is changed
-  create_nvim_tree_autocmd("ColorScheme", {
-    callback = function()
-      appearance.setup()
-      view.reset_winhl()
-
-      local explorer = core.get_explorer()
-      if explorer then
-        explorer.renderer:draw()
-      end
-    end,
-  })
-
-  -- prevent new opened file from opening in the same window as nvim-tree
-  create_nvim_tree_autocmd("BufWipeout", {
-    pattern = "NvimTree_*",
-    callback = function()
-      if not utils.is_nvim_tree_buf(0) then
-        return
-      end
-      if opts.actions.open_file.eject then
-        view._prevent_buffer_override()
-      else
-        view.abandon_current_window()
-      end
-    end,
-  })
-
-  create_nvim_tree_autocmd("BufWritePost", {
-    callback = function()
-      if opts.auto_reload_on_write and not opts.filesystem_watchers.enable then
-        local explorer = core.get_explorer()
-        if explorer then
-          explorer:reload_explorer()
-        end
-      end
-    end,
-  })
-
-  create_nvim_tree_autocmd("BufReadPost", {
-    callback = function(data)
-      -- update opened file buffers
-      local explorer = core.get_explorer()
-      if not explorer then
-        return
-      end
-      if
-        (explorer.filters.config.filter_no_buffer or explorer.opts.highlight_opened_files ~= "none") and vim.bo[data.buf].buftype == ""
-      then
-        utils.debounce("Buf:filter_buffer", opts.view.debounce_delay, function()
-          explorer:reload_explorer()
-        end)
-      end
-    end,
-  })
-
-  create_nvim_tree_autocmd("BufUnload", {
-    callback = function(data)
-      -- update opened file buffers
-      local explorer = core.get_explorer()
-      if not explorer then
-        return
-      end
-      if
-        (explorer.filters.config.filter_no_buffer or explorer.opts.highlight_opened_files ~= "none") and vim.bo[data.buf].buftype == ""
-      then
-        utils.debounce("Buf:filter_buffer", opts.view.debounce_delay, function()
-          explorer:reload_explorer()
-        end)
-      end
-    end,
-  })
-
-  create_nvim_tree_autocmd("User", {
-    pattern = { "FugitiveChanged", "NeogitStatusRefreshed" },
-    callback = function()
-      if not opts.filesystem_watchers.enable and opts.git.enable then
-        local explorer = core.get_explorer()
-        if explorer then
-          explorer:reload_git()
-        end
-      end
-    end,
-  })
-
   if opts.tab.sync.open then
     create_nvim_tree_autocmd("TabEnter", { callback = vim.schedule_wrap(M.tab_enter) })
   end
-  if opts.hijack_cursor then
-    create_nvim_tree_autocmd("CursorMoved", {
-      pattern = "NvimTree_*",
-      callback = function()
-        if utils.is_nvim_tree_buf(0) then
-          M.place_cursor_on_node()
-        end
-      end,
-    })
-  end
   if opts.sync_root_with_cwd then
     create_nvim_tree_autocmd("DirChanged", {
       callback = function()
@@ -293,29 +173,19 @@ local function setup_autocommands(opts)
   end
 
   if opts.hijack_directories.enable then
-    create_nvim_tree_autocmd({ "BufEnter", "BufNewFile" }, { callback = M.open_on_directory })
+    create_nvim_tree_autocmd({ "BufEnter", "BufNewFile" }, { callback = M.open_on_directory, nested = true })
   end
 
-  create_nvim_tree_autocmd("BufEnter", {
-    pattern = "NvimTree_*",
-    callback = function()
-      if utils.is_nvim_tree_buf(0) then
-        if vim.fn.getcwd() ~= core.get_cwd() or (opts.reload_on_bufenter and not opts.filesystem_watchers.enable) then
-          local explorer = core.get_explorer()
-          if explorer then
-            explorer:reload_explorer()
-          end
-        end
-      end
-    end,
-  })
-
   if opts.view.centralize_selection then
     create_nvim_tree_autocmd("BufEnter", {
       pattern = "NvimTree_*",
       callback = function()
         vim.schedule(function()
           vim.api.nvim_buf_call(0, function()
+            local is_term_mode = vim.api.nvim_get_mode().mode == "t"
+            if is_term_mode then
+              return
+            end
             vim.cmd([[norm! zz]])
           end)
         end)
@@ -325,44 +195,33 @@ local function setup_autocommands(opts)
 
   if opts.diagnostics.enable then
     create_nvim_tree_autocmd("DiagnosticChanged", {
-      callback = function()
+      callback = function(ev)
         log.line("diagnostics", "DiagnosticChanged")
-        require("nvim-tree.diagnostics").update()
+        require("nvim-tree.diagnostics").update_lsp(ev)
       end,
     })
     create_nvim_tree_autocmd("User", {
       pattern = "CocDiagnosticChange",
       callback = function()
         log.line("diagnostics", "CocDiagnosticChange")
-        require("nvim-tree.diagnostics").update()
+        require("nvim-tree.diagnostics").update_coc()
       end,
     })
   end
 
-  if opts.view.float.enable and opts.view.float.quit_on_focus_loss then
+  -- Handles event dispatch when tree is closed by `:q`
-    create_nvim_tree_autocmd("WinLeave", {
+  create_nvim_tree_autocmd("WinClosed", {
-      pattern = "NvimTree_*",
+    pattern = "*",
-      callback = function()
+    ---@param ev vim.api.keyset.create_autocmd.callback_args
-        if utils.is_nvim_tree_buf(0) then
+    callback = function(ev)
-          view.close()
+      if not vim.api.nvim_buf_is_valid(ev.buf) then
-        end
+        return
-      end,
+      end
-    })
+      if vim.api.nvim_get_option_value("filetype", { buf = ev.buf }) == "NvimTree" then
-  end
+        require("nvim-tree.events")._dispatch_on_tree_close()
-
+      end
-  if opts.modified.enable then
+    end,
-    create_nvim_tree_autocmd({ "BufModifiedSet", "BufWritePost" }, {
+  })
-      callback = function()
-        utils.debounce("Buf:modified", opts.view.debounce_delay, function()
-          require("nvim-tree.buffers").reload_modified()
-          local explorer = core.get_explorer()
-          if explorer then
-            explorer:reload_explorer()
-          end
-        end)
-      end,
-    })
-  end
 end
 
 local DEFAULT_OPTS = { -- BEGIN_DEFAULT_OPTS
@@ -386,6 +245,7 @@ local DEFAULT_OPTS = { -- BEGIN_DEFAULT_OPTS
   view = {
     centralize_selection = false,
     cursorline = true,
+    cursorlineopt = "both",
     debounce_delay = 15,
     side = "left",
     preserve_window_proportions = false,
@@ -415,6 +275,7 @@ local DEFAULT_OPTS = { -- BEGIN_DEFAULT_OPTS
     special_files = { "Cargo.toml", "Makefile", "README.md", "readme.md" },
     hidden_display = "none",
     symlink_destination = true,
+    decorators = { "Git", "Open", "Hidden", "Modified", "Bookmark", "Diagnostics", "Copied", "Cut", },
     highlight_git = "none",
     highlight_diagnostics = "none",
     highlight_opened_files = "none",
@@ -449,7 +310,10 @@ local DEFAULT_OPTS = { -- BEGIN_DEFAULT_OPTS
       hidden_placement = "after",
       diagnostics_placement = "signcolumn",
       bookmarks_placement = "signcolumn",
-      padding = " ",
+      padding = {
+        icon = " ",
+        folder_arrow = " ",
+      },
       symlink_arrow = " ➛ ",
       show = {
         file = true,
@@ -517,7 +381,7 @@ local DEFAULT_OPTS = { -- BEGIN_DEFAULT_OPTS
     enable = false,
     show_on_dirs = false,
     show_on_open_dirs = true,
-    debounce_delay = 50,
+    debounce_delay = 500,
     severity = {
       min = vim.diagnostic.severity.HINT,
       max = vim.diagnostic.severity.ERROR,
@@ -551,7 +415,12 @@ local DEFAULT_OPTS = { -- BEGIN_DEFAULT_OPTS
   filesystem_watchers = {
     enable = true,
     debounce_delay = 50,
-    ignore_dirs = {},
+    ignore_dirs = {
+      "/.ccls-cache",
+      "/build",
+      "/node_modules",
+      "/target",
+    },
   },
   actions = {
     use_system_clipboard = true,
@@ -577,6 +446,7 @@ local DEFAULT_OPTS = { -- BEGIN_DEFAULT_OPTS
       quit_on_open = false,
       eject = true,
       resize_window = true,
+      relative_path = true,
       window_picker = {
         enable = true,
         picker = "default",
@@ -616,11 +486,7 @@ local DEFAULT_OPTS = { -- BEGIN_DEFAULT_OPTS
     },
   },
   experimental = {
-    actions = {
+    multi_instance = false,
-      open_file = {
-        relative_path = false,
-      },
-    },
   },
   log = {
     enable = false,
@@ -800,13 +666,16 @@ local function localise_default_opts()
 end
 
 function M.purge_all_state()
-  require("nvim-tree.watcher").purge_watchers()
+  local explorer = core.get_explorer()
-  view.close_all_tabs()
+  if explorer then
-  view.abandon_all_windows()
+    explorer.view:close_all_tabs()
-  if core.get_explorer() ~= nil then
+    explorer.view:abandon_all_windows()
     require("nvim-tree.git").purge_state()
+    explorer:destroy()
     core.reset_explorer()
   end
+  -- purge orphaned that were not destroyed by their nodes
+  require("nvim-tree.watcher").purge_watchers()
 end
 
 ---@param conf table|nil
@@ -849,18 +718,16 @@ function M.setup(conf)
   require("nvim-tree.keymap").setup(opts)
   require("nvim-tree.appearance").setup()
   require("nvim-tree.diagnostics").setup(opts)
-  require("nvim-tree.explorer").setup(opts)
+  require("nvim-tree.explorer"):setup(opts)
+  require("nvim-tree.explorer.watch").setup(opts)
   require("nvim-tree.git").setup(opts)
   require("nvim-tree.git.utils").setup(opts)
-  require("nvim-tree.view").setup(opts)
   require("nvim-tree.lib").setup(opts)
   require("nvim-tree.renderer.components").setup(opts)
   require("nvim-tree.buffers").setup(opts)
   require("nvim-tree.help").setup(opts)
   require("nvim-tree.watcher").setup(opts)
-  if M.config.renderer.icons.show.file and pcall(require, "nvim-web-devicons") then
+  require("nvim-tree.multi-instance-debug").setup(opts)
-    require("nvim-web-devicons").setup()
-  end
 
   setup_autocommands(opts)
 

lua/nvim-tree/_meta/api.lua

@@ -0,0 +1,51 @@
+---@meta
+error("Cannot require a meta file")
+
+--
+-- Nodes
+--
+
+---Base Node, Abstract
+---@class (exact) nvim_tree.api.Node
+---@field type "file" | "directory" | "link" uv.fs_stat.result.type
+---@field absolute_path string
+---@field executable boolean
+---@field fs_stat uv.fs_stat.result?
+---@field git_status GitNodeStatus?
+---@field hidden boolean
+---@field name string
+---@field parent nvim_tree.api.DirectoryNode?
+---@field diag_severity lsp.DiagnosticSeverity?
+
+---File
+---@class (exact) nvim_tree.api.FileNode: nvim_tree.api.Node
+---@field extension string
+
+---Directory
+---@class (exact) nvim_tree.api.DirectoryNode: nvim_tree.api.Node
+---@field has_children boolean
+---@field nodes nvim_tree.api.Node[]
+---@field open boolean
+
+---Root Directory
+---@class (exact) nvim_tree.api.RootNode: nvim_tree.api.DirectoryNode
+
+---Link mixin
+---@class (exact) nvim_tree.api.LinkNode
+---@field link_to string
+---@field fs_stat_target uv.fs_stat.result
+
+---File Link
+---@class (exact) nvim_tree.api.FileLinkNode: nvim_tree.api.FileNode, nvim_tree.api.LinkNode
+
+---DirectoryLink
+---@class (exact) nvim_tree.api.DirectoryLinkNode: nvim_tree.api.DirectoryNode, nvim_tree.api.LinkNode
+
+--
+-- Various Types
+--
+
+---A string for rendering, with optional highlight groups to apply to it
+---@class (exact) nvim_tree.api.HighlightedString
+---@field str string
+---@field hl string[]

lua/nvim-tree/_meta/api_decorator.lua

@@ -0,0 +1,54 @@
+---@meta
+error("Cannot require a meta file")
+
+local nvim_tree = { api = { decorator = {} } }
+
+---Highlight group range as per nvim-tree.renderer.highlight_*
+---@alias nvim_tree.api.decorator.HighlightRange "none" | "icon" | "name" | "all"
+
+---Icon position as per renderer.icons.*_placement
+---@alias nvim_tree.api.decorator.IconPlacement "none" | "before" | "after" | "signcolumn" | "right_align"
+
+---Names of builtin decorators or your decorator classes. Builtins are ordered lowest to highest priority.
+---@alias nvim_tree.api.decorator.Name "Git" | "Opened" | "Hidden" | "Modified" | "Bookmarks" | "Diagnostics" | "Copied" | "Cut" | nvim_tree.api.decorator.UserDecorator
+
+---Custom decorator, see :help nvim-tree-decorators
+---
+---@class (exact) nvim_tree.api.decorator.UserDecorator
+---@field protected enabled boolean
+---@field protected highlight_range nvim_tree.api.decorator.HighlightRange
+---@field protected icon_placement nvim_tree.api.decorator.IconPlacement
+nvim_tree.api.decorator.UserDecorator = {}
+
+---Create your decorator class
+---
+function nvim_tree.api.decorator.UserDecorator:extend() end
+
+---Abstract: no-args constructor must be implemented and will be called once per tree render.
+---Must set all fields.
+---
+function nvim_tree.api.decorator.UserDecorator:new() end
+
+---Abstract: optionally implement to set the node's icon
+---
+---@param node nvim_tree.api.Node
+---@return nvim_tree.api.HighlightedString? icon_node
+function nvim_tree.api.decorator.UserDecorator:icon_node(node) end
+
+---Abstract: optionally implement to provide icons and the highlight groups for your icon_placement.
+---
+---@param node nvim_tree.api.Node
+---@return nvim_tree.api.HighlightedString[]? icons
+function nvim_tree.api.decorator.UserDecorator:icons(node) end
+
+---Abstract: optionally implement to provide one highlight group to apply to your highlight_range.
+---
+---@param node nvim_tree.api.Node
+---@return string? highlight_group
+function nvim_tree.api.decorator.UserDecorator:highlight_group(node) end
+
+---Define a sign. This should be called in the constructor.
+---
+---@protected
+---@param icon nvim_tree.api.HighlightedString?
+function nvim_tree.api.decorator.UserDecorator:define_sign(icon) end

lua/nvim-tree/actions/finders/find-file.lua

@@ -1,7 +1,8 @@
 local log = require("nvim-tree.log")
-local view = require("nvim-tree.view")
 local utils = require("nvim-tree.utils")
 local core = require("nvim-tree.core")
+
+local DirectoryNode = require("nvim-tree.node.directory")
 local Iterator = require("nvim-tree.iterators.node-iterator")
 
 local M = {}
@@ -12,7 +13,7 @@ local running = {}
 ---@param path string relative or absolute
 function M.fn(path)
   local explorer = core.get_explorer()
-  if not explorer or not view.is_visible() then
+  if not explorer or not explorer.view:is_visible(nil, "finders/find-file.fn1") then
     return
   end
 
@@ -58,25 +59,33 @@ function M.fn(path)
       local link_match = node.link_to and vim.startswith(path_real, node.link_to .. utils.path_separator)
 
       if abs_match or link_match then
-        if not node.group_next then
+        local dir = node:as(DirectoryNode)
-          node.open = true
+        if dir then
-        end
+          if not dir.group_next then
-        if #node.nodes == 0 then
+            dir.open = true
-          core.get_explorer():expand(node)
+          end
-          if node.group_next and incremented_line then
+          if #dir.nodes == 0 then
-            line = line - 1
+            core.get_explorer():expand(dir)
+            if dir.group_next and incremented_line then
+              line = line - 1
+            end
           end
         end
       end
     end)
     :recursor(function(node)
-      return node.group_next and { node.group_next } or (node.open and #node.nodes > 0 and node.nodes)
+      node = node and node:as(DirectoryNode)
+      if node then
+        return node.group_next and { node.group_next } or (node.open and #node.nodes > 0 and node.nodes)
+      else
+        return nil
+      end
     end)
     :iterate()
 
-  if found and view.is_visible() then
+  if found and explorer.view:is_visible(nil, "finders/find-file.fn2") then
     explorer.renderer:draw()
-    view.set_cursor({ line, 0 })
+    explorer.view:set_cursor({ line, 0 })
   end
 
   running[path_real] = false

lua/nvim-tree/actions/fs/clipboard.lua

@@ -7,37 +7,45 @@ local notify = require("nvim-tree.notify")
 
 local find_file = require("nvim-tree.actions.finders.find-file").fn
 
----@enum ACTION
+local Class = require("nvim-tree.classic")
-local ACTION = {
+local DirectoryNode = require("nvim-tree.node.directory")
-  copy = "copy",
-  cut = "cut",
-}
 
----@class Clipboard to handle all actions.fs clipboard API
+---@alias ClipboardAction "copy" | "cut"
----@field config table hydrated user opts.filters
+---@alias ClipboardData table<ClipboardAction, Node[]>
+
+---@alias ClipboardActionFn fun(source: string, dest: string): boolean, string?
+
+---@class (exact) Clipboard: Class
 ---@field private explorer Explorer
----@field private data table<ACTION, Node[]>
+---@field private data ClipboardData
-local Clipboard = {}
+---@field private clipboard_name string
+---@field private reg string
+local Clipboard = Class:extend()
 
----@param opts table user options
+---@class Clipboard
----@param explorer Explorer
+---@overload fun(args: ClipboardArgs): Clipboard
----@return Clipboard
+
-function Clipboard:new(opts, explorer)
+---@class (exact) ClipboardArgs
-  local o = {
+---@field explorer Explorer
-    explorer = explorer,
+
-    data = {
+---@protected
-      [ACTION.copy] = {},
+---@param args ClipboardArgs
-      [ACTION.cut] = {},
+function Clipboard:new(args)
-    },
+  args.explorer:log_new("Clipboard")
-    config = {
+
-      filesystem_watchers = opts.filesystem_watchers,
+  self.explorer = args.explorer
-      actions = opts.actions,
+
-    },
+  self.data = {
+    copy = {},
+    cut = {},
   }
 
-  setmetatable(o, self)
+  self.clipboard_name = self.explorer.opts.actions.use_system_clipboard and "system" or "neovim"
-  self.__index = self
+  self.reg = self.explorer.opts.actions.use_system_clipboard and "+" or "1"
-  return o
+end
+
+function Clipboard:destroy()
+  self.explorer:log_destroy("Clipboard")
 end
 
 ---@param source string
@@ -45,13 +53,11 @@ end
 ---@return boolean
 ---@return string|nil
 local function do_copy(source, destination)
-  local source_stats, handle
+  local source_stats, err = vim.loop.fs_stat(source)
-  local success, errmsg
 
-  source_stats, errmsg = vim.loop.fs_stat(source)
   if not source_stats then
-    log.line("copy_paste", "do_copy fs_stat '%s' failed '%s'", source, errmsg)
+    log.line("copy_paste", "do_copy fs_stat '%s' failed '%s'", source, err)
-    return false, errmsg
+    return false, err
   end
 
   log.line("copy_paste", "do_copy %s '%s' -> '%s'", source_stats.type, source, destination)
@@ -62,25 +68,28 @@ local function do_copy(source, destination)
   end
 
   if source_stats.type == "file" then
-    success, errmsg = vim.loop.fs_copyfile(source, destination)
+    local success
+    success, err = vim.loop.fs_copyfile(source, destination)
     if not success then
-      log.line("copy_paste", "do_copy fs_copyfile failed '%s'", errmsg)
+      log.line("copy_paste", "do_copy fs_copyfile failed '%s'", err)
-      return false, errmsg
+      return false, err
     end
     return true
   elseif source_stats.type == "directory" then
-    handle, errmsg = vim.loop.fs_scandir(source)
+    local handle
+    handle, err = vim.loop.fs_scandir(source)
     if type(handle) == "string" then
       return false, handle
     elseif not handle then
-      log.line("copy_paste", "do_copy fs_scandir '%s' failed '%s'", source, errmsg)
+      log.line("copy_paste", "do_copy fs_scandir '%s' failed '%s'", source, err)
-      return false, errmsg
+      return false, err
     end
 
-    success, errmsg = vim.loop.fs_mkdir(destination, source_stats.mode)
+    local success
+    success, err = vim.loop.fs_mkdir(destination, source_stats.mode)
     if not success then
-      log.line("copy_paste", "do_copy fs_mkdir '%s' failed '%s'", destination, errmsg)
+      log.line("copy_paste", "do_copy fs_mkdir '%s' failed '%s'", destination, err)
-      return false, errmsg
+      return false, err
     end
 
     while true do
@@ -91,15 +100,15 @@ local function do_copy(source, destination)
 
       local new_name = utils.path_join({ source, name })
       local new_destination = utils.path_join({ destination, name })
-      success, errmsg = do_copy(new_name, new_destination)
+      success, err = do_copy(new_name, new_destination)
       if not success then
-        return false, errmsg
+        return false, err
       end
     end
   else
-    errmsg = string.format("'%s' illegal file type '%s'", source, source_stats.type)
+    err = string.format("'%s' illegal file type '%s'", source, source_stats.type)
-    log.line("copy_paste", "do_copy %s", errmsg)
+    log.line("copy_paste", "do_copy %s", err)
-    return false, errmsg
+    return false, err
   end
 
   return true
@@ -107,28 +116,26 @@ end
 
 ---@param source string
 ---@param dest string
----@param action ACTION
+---@param action ClipboardAction
----@param action_fn fun(source: string, dest: string)
+---@param action_fn ClipboardActionFn
 ---@return boolean|nil -- success
 ---@return string|nil -- error message
 local function do_single_paste(source, dest, action, action_fn)
-  local dest_stats
-  local success, errmsg, errcode
   local notify_source = notify.render_path(source)
 
   log.line("copy_paste", "do_single_paste '%s' -> '%s'", source, dest)
 
-  dest_stats, errmsg, errcode = vim.loop.fs_stat(dest)
+  local dest_stats, err, err_name = vim.loop.fs_stat(dest)
-  if not dest_stats and errcode ~= "ENOENT" then
+  if not dest_stats and err_name ~= "ENOENT" then
-    notify.error("Could not " .. action .. " " .. notify_source .. " - " .. (errmsg or "???"))
+    notify.error("Could not " .. action .. " " .. notify_source .. " - " .. (err or "???"))
-    return false, errmsg
+    return false, err
   end
 
   local function on_process()
-    success, errmsg = action_fn(source, dest)
+    local success, error = action_fn(source, dest)
     if not success then
-      notify.error("Could not " .. action .. " " .. notify_source .. " - " .. (errmsg or "???"))
+      notify.error("Could not " .. action .. " " .. notify_source .. " - " .. (error or "???"))
-      return false, errmsg
+      return false, error
     end
 
     find_file(utils.path_remove_trailing(dest))
@@ -171,7 +178,7 @@ local function do_single_paste(source, dest, action, action_fn)
 end
 
 ---@param node Node
----@param clip table
+---@param clip ClipboardData
 local function toggle(node, clip)
   if node.name == ".." then
     return
@@ -189,8 +196,8 @@ end
 
 ---Clear copied and cut
 function Clipboard:clear_clipboard()
-  self.data[ACTION.copy] = {}
+  self.data.copy = {}
-  self.data[ACTION.cut] = {}
+  self.data.cut = {}
   notify.info("Clipboard has been emptied.")
   self.explorer.renderer:draw()
 end
@@ -198,29 +205,32 @@ end
 ---Copy one node
 ---@param node Node
 function Clipboard:copy(node)
-  utils.array_remove(self.data[ACTION.cut], node)
+  utils.array_remove(self.data.cut, node)
-  toggle(node, self.data[ACTION.copy])
+  toggle(node, self.data.copy)
   self.explorer.renderer:draw()
 end
 
 ---Cut one node
 ---@param node Node
 function Clipboard:cut(node)
-  utils.array_remove(self.data[ACTION.copy], node)
+  utils.array_remove(self.data.copy, node)
-  toggle(node, self.data[ACTION.cut])
+  toggle(node, self.data.cut)
   self.explorer.renderer:draw()
 end
 
 ---Paste cut or cop
 ---@private
 ---@param node Node
----@param action ACTION
+---@param action ClipboardAction
----@param action_fn fun(source: string, dest: string)
+---@param action_fn ClipboardActionFn
 function Clipboard:do_paste(node, action, action_fn)
-  node = lib.get_last_group_node(node)
+  if node.name == ".." then
-  local explorer = core.get_explorer()
+    node = self.explorer
-  if node.name == ".." and explorer then
+  else
-    node = explorer
+    local dir = node:as(DirectoryNode)
+    if dir then
+      node = dir:last_group_node()
+    end
   end
   local clip = self.data[action]
   if #clip == 0 then
@@ -228,10 +238,10 @@ function Clipboard:do_paste(node, action, action_fn)
   end
 
   local destination = node.absolute_path
-  local stats, errmsg, errcode = vim.loop.fs_stat(destination)
+  local stats, err, err_name = vim.loop.fs_stat(destination)
-  if not stats and errcode ~= "ENOENT" then
+  if not stats and err_name ~= "ENOENT" then
-    log.line("copy_paste", "do_paste fs_stat '%s' failed '%s'", destination, errmsg)
+    log.line("copy_paste", "do_paste fs_stat '%s' failed '%s'", destination, err)
-    notify.error("Could not " .. action .. " " .. notify.render_path(destination) .. " - " .. (errmsg or "???"))
+    notify.error("Could not " .. action .. " " .. notify.render_path(destination) .. " - " .. (err or "???"))
     return
   end
   local is_dir = stats and stats.type == "directory"
@@ -245,7 +255,7 @@ function Clipboard:do_paste(node, action, action_fn)
   end
 
   self.data[action] = {}
-  if not self.config.filesystem_watchers.enable then
+  if not self.explorer.opts.filesystem_watchers.enable then
     self.explorer:reload_explorer()
   end
 end
@@ -276,24 +286,24 @@ end
 ---Paste cut (if present) or copy (if present)
 ---@param node Node
 function Clipboard:paste(node)
-  if self.data[ACTION.cut][1] ~= nil then
+  if self.data.cut[1] ~= nil then
-    self:do_paste(node, ACTION.cut, do_cut)
+    self:do_paste(node, "cut", do_cut)
-  elseif self.data[ACTION.copy][1] ~= nil then
+  elseif self.data.copy[1] ~= nil then
-    self:do_paste(node, ACTION.copy, do_copy)
+    self:do_paste(node, "copy", do_copy)
   end
 end
 
 function Clipboard:print_clipboard()
   local content = {}
-  if #self.data[ACTION.cut] > 0 then
+  if #self.data.cut > 0 then
     table.insert(content, "Cut")
-    for _, node in pairs(self.data[ACTION.cut]) do
+    for _, node in pairs(self.data.cut) do
       table.insert(content, " * " .. (notify.render_path(node.absolute_path)))
     end
   end
-  if #self.data[ACTION.copy] > 0 then
+  if #self.data.copy > 0 then
     table.insert(content, "Copy")
-    for _, node in pairs(self.data[ACTION.copy]) do
+    for _, node in pairs(self.data.copy) do
       table.insert(content, " * " .. (notify.render_path(node.absolute_path)))
     end
   end
@@ -303,65 +313,45 @@ end
 
 ---@param content string
 function Clipboard:copy_to_reg(content)
-  local clipboard_name
-  local reg
-  if self.config.actions.use_system_clipboard == true then
-    clipboard_name = "system"
-    reg = "+"
-  else
-    clipboard_name = "neovim"
-    reg = "1"
-  end
-
   -- manually firing TextYankPost does not set vim.v.event
   -- workaround: create a scratch buffer with the clipboard contents and send a yank command
   local temp_buf = vim.api.nvim_create_buf(false, true)
   vim.api.nvim_buf_set_text(temp_buf, 0, 0, 0, 0, { content })
   vim.api.nvim_buf_call(temp_buf, function()
-    vim.cmd(string.format('normal! "%sy$', reg))
+    vim.cmd(string.format('normal! "%sy$', self.reg))
   end)
   vim.api.nvim_buf_delete(temp_buf, {})
 
-  notify.info(string.format("Copied %s to %s clipboard!", content, clipboard_name))
+  notify.info(string.format("Copied %s to %s clipboard!", content, self.clipboard_name))
 end
 
 ---@param node Node
 function Clipboard:copy_filename(node)
-  local content
-
   if node.name == ".." then
     -- root
-    content = vim.fn.fnamemodify(self.explorer.absolute_path, ":t")
+    self:copy_to_reg(vim.fn.fnamemodify(self.explorer.absolute_path, ":t"))
   else
     -- node
-    content = node.name
+    self:copy_to_reg(node.name)
   end
-
-  self:copy_to_reg(content)
 end
 
 ---@param node Node
 function Clipboard:copy_basename(node)
-  local content
-
   if node.name == ".." then
     -- root
-    content = vim.fn.fnamemodify(self.explorer.absolute_path, ":t:r")
+    self:copy_to_reg(vim.fn.fnamemodify(self.explorer.absolute_path, ":t:r"))
   else
     -- node
-    content = vim.fn.fnamemodify(node.name, ":r")
+    self:copy_to_reg(vim.fn.fnamemodify(node.name, ":r"))
   end
-
-  self:copy_to_reg(content)
 end
 
 ---@param node Node
 function Clipboard:copy_path(node)
-  local content
-
   if node.name == ".." then
     -- root
-    content = utils.path_add_trailing("")
+    self:copy_to_reg(utils.path_add_trailing(""))
   else
     -- node
     local absolute_path = node.absolute_path
@@ -371,10 +361,12 @@ function Clipboard:copy_path(node)
     end
 
     local relative_path = utils.path_relative(absolute_path, cwd)
-    content = node.nodes ~= nil and utils.path_add_trailing(relative_path) or relative_path
+    if node:is(DirectoryNode) then
+      self:copy_to_reg(utils.path_add_trailing(relative_path))
+    else
+      self:copy_to_reg(relative_path)
+    end
   end
-
-  self:copy_to_reg(content)
 end
 
 ---@param node Node
@@ -392,14 +384,14 @@ end
 ---@param node Node
 ---@return boolean
 function Clipboard:is_cut(node)
-  return vim.tbl_contains(self.data[ACTION.cut], node)
+  return vim.tbl_contains(self.data.cut, node)
 end
 
 ---Node is copied. Will not be cut.
 ---@param node Node
 ---@return boolean
 function Clipboard:is_copied(node)
-  return vim.tbl_contains(self.data[ACTION.copy], node)
+  return vim.tbl_contains(self.data.copy, node)
 end
 
 return Clipboard

lua/nvim-tree/actions/fs/create-file.lua

@@ -1,11 +1,13 @@
 local utils = require("nvim-tree.utils")
 local events = require("nvim-tree.events")
-local lib = require("nvim-tree.lib")
 local core = require("nvim-tree.core")
 local notify = require("nvim-tree.notify")
 
 local find_file = require("nvim-tree.actions.finders.find-file").fn
 
+local FileNode = require("nvim-tree.node.file")
+local DirectoryNode = require("nvim-tree.node.directory")
+
 local M = {}
 
 ---@param file string
@@ -30,34 +32,21 @@ local function get_num_nodes(iter)
   return i
 end
 
----@param node Node
+---@param node Node?
----@return string
-local function get_containing_folder(node)
-  if node.nodes ~= nil then
-    return utils.path_add_trailing(node.absolute_path)
-  end
-  local node_name_size = #(node.name or "")
-  return node.absolute_path:sub(0, -node_name_size - 1)
-end
-
----@param node Node|nil
 function M.fn(node)
-  local cwd = core.get_cwd()
+  node = node or core.get_explorer()
-  if cwd == nil then
+  if not node then
     return
   end
 
-  node = node and lib.get_last_group_node(node)
+  local dir = node:is(FileNode) and node.parent or node:as(DirectoryNode)
-  if not node or node.name == ".." then
+  if not dir then
-    node = {
+    return
-      absolute_path = cwd,
-      name = "",
-      nodes = core.get_explorer().nodes,
-      open = true,
-    }
   end
 
-  local containing_folder = get_containing_folder(node)
+  dir = dir:last_group_node()
+
+  local containing_folder = utils.path_add_trailing(dir.absolute_path)
 
   local input_opts = {
     prompt = "Create file ",

lua/nvim-tree/actions/fs/remove-file.lua

@@ -1,20 +1,24 @@
 local core = require("nvim-tree.core")
 local utils = require("nvim-tree.utils")
 local events = require("nvim-tree.events")
-local view = require("nvim-tree.view")
 local lib = require("nvim-tree.lib")
 local notify = require("nvim-tree.notify")
 
+local DirectoryLinkNode = require("nvim-tree.node.directory-link")
+local DirectoryNode = require("nvim-tree.node.directory")
+
 local M = {
   config = {},
 }
 
 ---@param windows integer[]
 local function close_windows(windows)
+  local explorer = core.get_explorer()
+
   -- Prevent from closing when the win count equals 1 or 2,
   -- where the win to remove could be the last opened.
   -- For details see #2503.
-  if view.View.float.enable and #vim.api.nvim_list_wins() < 3 then
+  if explorer and explorer.opts.view.float.enable and #vim.api.nvim_list_wins() < 3 then
     return
   end
 
@@ -27,16 +31,17 @@ end
 
 ---@param absolute_path string
 local function clear_buffer(absolute_path)
+  local explorer = core.get_explorer()
   local bufs = vim.fn.getbufinfo({ bufloaded = 1, buflisted = 1 })
   for _, buf in pairs(bufs) do
     if buf.name == absolute_path then
       local tree_winnr = vim.api.nvim_get_current_win()
-      if buf.hidden == 0 and (#bufs > 1 or view.View.float.enable) then
+      if buf.hidden == 0 and (#bufs > 1 or explorer and explorer.opts.view.float.enable) then
         vim.api.nvim_set_current_win(buf.windows[1])
         vim.cmd(":bn")
       end
       vim.api.nvim_buf_delete(buf.bufnr, { force = true })
-      if not view.View.float.quit_on_focus_loss then
+      if explorer and not explorer.opts.view.float.quit_on_focus_loss then
         vim.api.nvim_set_current_win(tree_winnr)
       end
       if M.config.actions.remove_file.close_window then
@@ -66,9 +71,16 @@ local function remove_dir(cwd)
 
     -- Type must come from fs_stat and not fs_scandir_next to maintain sshfs compatibility
     local stat = vim.loop.fs_stat(new_cwd)
-    local type = stat and stat.type or nil
+    -- TODO remove once 0.12 is the minimum neovim version
+    -- path incorrectly specified as an integer, fixed upstream for neovim 0.12 https://github.com/neovim/neovim/pull/33872
+    ---@diagnostic disable-next-line: param-type-mismatch
+    local lstat = vim.loop.fs_lstat(new_cwd)
 
-    if type == "directory" then
+    local type = stat and stat.type or nil
+    -- Checks if file is a link file to ensure deletion of the symlink instead of the file it points to
+    local ltype = lstat and lstat.type or nil
+
+    if type == "directory" and ltype ~= "link" then
       local success = remove_dir(new_cwd)
       if not success then
         return false
@@ -89,7 +101,7 @@ end
 ---@param node Node
 function M.remove(node)
   local notify_node = notify.render_path(node.absolute_path)
-  if node.nodes ~= nil and not node.link_to then
+  if node:is(DirectoryNode) and not node:is(DirectoryLinkNode) then
     local success = remove_dir(node.absolute_path)
     if not success then
       notify.error("Could not remove " .. notify_node)

lua/nvim-tree/actions/fs/rename-file.lua

@@ -1,11 +1,12 @@
 local core = require("nvim-tree.core")
-local lib = require("nvim-tree.lib")
 local utils = require("nvim-tree.utils")
 local events = require("nvim-tree.events")
 local notify = require("nvim-tree.notify")
 
 local find_file = require("nvim-tree.actions.finders.find-file").fn
 
+local DirectoryNode = require("nvim-tree.node.directory")
+
 local M = {
   config = {},
 }
@@ -102,11 +103,15 @@ function M.fn(default_modifier)
   default_modifier = default_modifier or ":t"
 
   return function(node, modifier)
-    if type(node) ~= "table" then
+    local explorer = core.get_explorer()
-      node = lib.get_node_at_cursor()
+    if not explorer then
+      return
     end
 
-    if node == nil then
+    if type(node) ~= "table" then
+      node = explorer:get_node_at_cursor()
+    end
+    if not node then
       return
     end
 
@@ -120,7 +125,10 @@ function M.fn(default_modifier)
       return
     end
 
-    node = lib.get_last_group_node(node)
+    local dir = node:as(DirectoryNode)
+    if dir then
+      node = dir:last_group_node()
+    end
     if node.name == ".." then
       return
     end
@@ -154,15 +162,14 @@ function M.fn(default_modifier)
         return
       end
 
-      M.rename(node, prepend .. new_file_path .. append)
+      local full_new_path = prepend .. new_file_path .. append
+
+      M.rename(node, full_new_path)
       if not M.config.filesystem_watchers.enable then
-        local explorer = core.get_explorer()
+        explorer:reload_explorer()
-        if explorer then
-          explorer:reload_explorer()
-        end
       end
 
-      find_file(utils.path_remove_trailing(new_file_path))
+      find_file(utils.path_remove_trailing(full_new_path))
     end)
   end
 end

lua/nvim-tree/actions/fs/trash.lua

@@ -2,6 +2,9 @@ local core = require("nvim-tree.core")
 local lib = require("nvim-tree.lib")
 local notify = require("nvim-tree.notify")
 
+local DirectoryLinkNode = require("nvim-tree.node.directory-link")
+local DirectoryNode = require("nvim-tree.node.directory")
+
 local M = {
   config = {},
 }
@@ -54,7 +57,7 @@ function M.remove(node)
 
   local explorer = core.get_explorer()
 
-  if node.nodes ~= nil and not node.link_to then
+  if node:is(DirectoryNode) and not node:is(DirectoryLinkNode) then
     trash_path(function(_, rc)
       if rc ~= 0 then
         notify.warn("trash failed: " .. err_msg .. "; please see :help nvim-tree.trash")

lua/nvim-tree/actions/moves/item.lua

@@ -1,23 +1,23 @@
 local utils = require("nvim-tree.utils")
-local view = require("nvim-tree.view")
 local core = require("nvim-tree.core")
-local lib = require("nvim-tree.lib")
-local explorer_node = require("nvim-tree.explorer.node")
 local diagnostics = require("nvim-tree.diagnostics")
 
+local FileNode = require("nvim-tree.node.file")
+local DirectoryNode = require("nvim-tree.node.directory")
+
 local M = {}
 local MAX_DEPTH = 100
 
 ---Return the status of the node or nil if no status, depending on the type of
 ---status.
----@param node table node to inspect
+---@param node Node to inspect
----@param what string type of status
+---@param what string? type of status
----@param skip_gitignored boolean default false
+---@param skip_gitignored boolean? default false
 ---@return boolean
 local function status_is_valid(node, what, skip_gitignored)
   if what == "git" then
-    local git_status = explorer_node.get_git_status(node)
+    local git_xy = node:get_git_xy()
-    return git_status ~= nil and (not skip_gitignored or git_status[1] ~= "!!")
+    return git_xy ~= nil and (not skip_gitignored or git_xy[1] ~= "!!")
   elseif what == "diag" then
     local diag_status = diagnostics.get_diag_status(node)
     return diag_status ~= nil and diag_status.value ~= nil
@@ -29,15 +29,16 @@ local function status_is_valid(node, what, skip_gitignored)
 end
 
 ---Move to the next node that has a valid status. If none found, don't move.
----@param where string where to move (forwards or backwards)
+---@param explorer Explorer
----@param what string type of status
+---@param where string? where to move (forwards or backwards)
----@param skip_gitignored boolean default false
+---@param what string? type of status
-local function move(where, what, skip_gitignored)
+---@param skip_gitignored boolean? default false
+local function move(explorer, where, what, skip_gitignored)
   local first_node_line = core.get_nodes_starting_line()
-  local nodes_by_line = utils.get_nodes_by_line(core.get_explorer().nodes, first_node_line)
+  local nodes_by_line = utils.get_nodes_by_line(explorer.nodes, first_node_line)
   local iter_start, iter_end, iter_step, cur, first, nex
 
-  local cursor = lib.get_cursor_position()
+  local cursor = explorer:get_cursor_position()
   if cursor and cursor[1] < first_node_line then
     cur = cursor[1]
   end
@@ -65,31 +66,33 @@ local function move(where, what, skip_gitignored)
   end
 
   if nex then
-    view.set_cursor({ nex, 0 })
+    explorer.view:set_cursor({ nex, 0 })
   elseif vim.o.wrapscan and first then
-    view.set_cursor({ first, 0 })
+    explorer.view:set_cursor({ first, 0 })
   end
 end
 
+---@param node DirectoryNode
 local function expand_node(node)
   if not node.open then
     -- Expand the node.
     -- Should never collapse since we checked open.
-    lib.expand_or_collapse(node)
+    node:expand_or_collapse(false)
   end
 end
 
 --- Move to the next node recursively.
----@param what string type of status
+---@param explorer Explorer
----@param skip_gitignored boolean default false
+---@param what string? type of status
-local function move_next_recursive(what, skip_gitignored)
+---@param skip_gitignored? boolean default false
+local function move_next_recursive(explorer, what, skip_gitignored)
   -- If the current node:
   -- * is a directory
   -- * and is not the root node
   -- * and has a git/diag status
   -- * and is not opened
   -- expand it.
-  local node_init = lib.get_node_at_cursor()
+  local node_init = explorer:get_node_at_cursor()
   if not node_init then
     return
   end
@@ -97,13 +100,14 @@ local function move_next_recursive(what, skip_gitignored)
   if node_init.name ~= ".." then -- root node cannot have a status
     valid = status_is_valid(node_init, what, skip_gitignored)
   end
-  if node_init.nodes ~= nil and valid and not node_init.open then
+  local node_dir = node_init:as(DirectoryNode)
-    lib.expand_or_collapse(node_init)
+  if node_dir and valid and not node_dir.open then
+    node_dir:expand_or_collapse(false)
   end
 
-  move("next", what, skip_gitignored)
+  move(explorer, "next", what, skip_gitignored)
 
-  local node_cur = lib.get_node_at_cursor()
+  local node_cur = explorer:get_node_at_cursor()
   if not node_cur then
     return
   end
@@ -115,20 +119,15 @@ local function move_next_recursive(what, skip_gitignored)
 
   -- i is used to limit iterations.
   local i = 0
-  local is_dir = node_cur.nodes ~= nil
+  local dir_cur = node_cur:as(DirectoryNode)
-  while is_dir and i < MAX_DEPTH do
+  while dir_cur and i < MAX_DEPTH do
-    expand_node(node_cur)
+    expand_node(dir_cur)
 
-    move("next", what, skip_gitignored)
+    move(explorer, "next", what, skip_gitignored)
 
     -- Save current node.
-    node_cur = lib.get_node_at_cursor()
+    node_cur = explorer:get_node_at_cursor()
-    -- Update is_dir.
+    dir_cur = node_cur and node_cur:as(DirectoryNode)
-    if node_cur then
-      is_dir = node_cur.nodes ~= nil
-    else
-      is_dir = false
-    end
 
     i = i + 1
   end
@@ -149,24 +148,25 @@ end
 --- 4.4) Call a non-recursive prev.
 --- 4.5) Save the current node and start back from 4.1.
 ---
----@param what string type of status
+---@param explorer Explorer
----@param skip_gitignored boolean default false
+---@param what string? type of status
-local function move_prev_recursive(what, skip_gitignored)
+---@param skip_gitignored boolean? default false
+local function move_prev_recursive(explorer, what, skip_gitignored)
   local node_init, node_cur
 
   -- 1)
-  node_init = lib.get_node_at_cursor()
+  node_init = explorer:get_node_at_cursor()
   if node_init == nil then
     return
   end
 
   -- 2)
-  move("prev", what, skip_gitignored)
+  move(explorer, "prev", what, skip_gitignored)
 
-  node_cur = lib.get_node_at_cursor()
+  node_cur = explorer:get_node_at_cursor()
   if node_cur == node_init.parent then
     -- 3)
-    move_prev_recursive(what, skip_gitignored)
+    move_prev_recursive(explorer, what, skip_gitignored)
   else
     -- i is used to limit iterations.
     local i = 0
@@ -175,31 +175,33 @@ local function move_prev_recursive(what, skip_gitignored)
       if
         node_cur == nil
         or node_cur == node_init -- we didn't move
-        or not node_cur.nodes    -- node is a file
+        or node_cur:is(FileNode) -- node is a file
       then
         return
       end
 
       -- 4.2)
-      local node_dir = node_cur
+      local node_dir = node_cur:as(DirectoryNode)
-      expand_node(node_dir)
+      if node_dir then
+        expand_node(node_dir)
+      end
 
       -- 4.3)
       if node_init.name == ".." then -- root node
-        view.set_cursor({ 1, 0 })    -- move to root node (position 1)
+        explorer.view:set_cursor({ 1, 0 })    -- move to root node (position 1)
       else
         local node_init_line = utils.find_node_line(node_init)
         if node_init_line < 0 then
           return
         end
-        view.set_cursor({ node_init_line, 0 })
+        explorer.view:set_cursor({ node_init_line, 0 })
       end
 
       -- 4.4)
-      move("prev", what, skip_gitignored)
+      move(explorer, "prev", what, skip_gitignored)
 
       -- 4.5)
-      node_cur = lib.get_node_at_cursor()
+      node_cur = explorer:get_node_at_cursor()
 
       i = i + 1
     end
@@ -207,34 +209,36 @@ local function move_prev_recursive(what, skip_gitignored)
 end
 
 ---@class NavigationItemOpts
----@field where string
+---@field where string?
----@field what string
+---@field what string?
+---@field skip_gitignored boolean?
+---@field recurse boolean?
 
 ---@param opts NavigationItemOpts
 ---@return fun()
 function M.fn(opts)
   return function()
+    local explorer = core.get_explorer()
+    if not explorer then
+      return
+    end
+
     local recurse = false
-    local skip_gitignored = false
 
     -- recurse only valid for git and diag moves.
     if (opts.what == "git" or opts.what == "diag") and opts.recurse ~= nil then
       recurse = opts.recurse
     end
 
-    if opts.skip_gitignored ~= nil then
-      skip_gitignored = opts.skip_gitignored
-    end
-
     if not recurse then
-      move(opts.where, opts.what, skip_gitignored)
+      move(explorer, opts.where, opts.what, opts.skip_gitignored)
       return
     end
 
     if opts.where == "next" then
-      move_next_recursive(opts.what, skip_gitignored)
+      move_next_recursive(explorer, opts.what, opts.skip_gitignored)
     elseif opts.where == "prev" then
-      move_prev_recursive(opts.what, skip_gitignored)
+      move_prev_recursive(explorer, opts.what, opts.skip_gitignored)
     end
   end
 end

lua/nvim-tree/actions/moves/parent.lua

@@ -1,7 +1,6 @@
-local view = require("nvim-tree.view")
 local utils = require("nvim-tree.utils")
-local core = require("nvim-tree.core")
+
-local lib = require("nvim-tree.lib")
+local DirectoryNode = require("nvim-tree.node.directory")
 
 local M = {}
 
@@ -10,33 +9,33 @@ local M = {}
 function M.fn(should_close)
   should_close = should_close or false
 
+  ---@param node Node
   return function(node)
-    local explorer = core.get_explorer()
+    local dir = node:as(DirectoryNode)
-    node = lib.get_last_group_node(node)
+    if dir then
-    if should_close and node.open then
+      dir = dir:last_group_node()
-      node.open = false
+      if should_close and dir.open then
-      if explorer then
+        dir.open = false
-        explorer.renderer:draw()
+        dir.explorer.renderer:draw()
+        return
       end
+    end
+
+    local parent = (node:get_parent_of_group() or node).parent
+
+    if not parent or not parent.parent then
+      node.explorer.view:set_cursor({ 1, 0 })
       return
     end
 
-    local parent = utils.get_parent_of_group(node).parent
+    local _, line = utils.find_node(parent.explorer.nodes, function(n)
-
-    if not parent or not parent.parent then
-      return view.set_cursor({ 1, 0 })
-    end
-
-    local _, line = utils.find_node(core.get_explorer().nodes, function(n)
       return n.absolute_path == parent.absolute_path
     end)
 
-    view.set_cursor({ line + 1, 0 })
+    node.explorer.view:set_cursor({ line + 1, 0 })
     if should_close then
       parent.open = false
-      if explorer then
+      parent.explorer.renderer:draw()
-        explorer.renderer:draw()
-      end
     end
   end
 end

lua/nvim-tree/actions/moves/sibling.lua

@@ -15,7 +15,7 @@ function M.fn(direction)
     local first, last, next, prev = nil, nil, nil, nil
     local found = false
     local parent = node.parent or core.get_explorer()
-    Iterator.builder(parent.nodes)
+    Iterator.builder(parent and parent.nodes or {})
       :recursor(function()
         return nil
       end)

lua/nvim-tree/actions/node/buffer.lua

@@ -0,0 +1,58 @@
+-- Copyright 2019 Yazdani Kiyan under MIT License
+local notify = require("nvim-tree.notify")
+
+local M = {}
+
+---@param node Node
+---@param opts ApiNodeDeleteWipeBufferOpts|nil
+---@return nil
+function M.delete(node, opts)
+  M.delete_buffer("delete", node.absolute_path, opts)
+end
+
+---@param node Node
+---@param opts ApiNodeDeleteWipeBufferOpts|nil
+---@return nil
+function M.wipe(node, opts)
+  M.delete_buffer("wipe", node.absolute_path, opts)
+end
+
+---@alias ApiNodeDeleteWipeBufferMode '"delete"'|'"wipe"'
+
+---@param mode ApiNodeDeleteWipeBufferMode
+---@param filename string
+---@param opts ApiNodeDeleteWipeBufferOpts|nil
+---@return nil
+function M.delete_buffer(mode, filename, opts)
+  if type(mode) ~= "string" then
+    mode = "delete"
+  end
+
+  local buf_fn = vim.cmd.bdelete
+  if mode == "wipe" then
+    buf_fn = vim.cmd.bwipe
+  end
+
+  opts = opts or { force = false }
+
+  local notify_node = notify.render_path(filename)
+
+  -- check if buffer for file at cursor exists and if it is loaded
+  local bufnr_at_filename = vim.fn.bufnr(filename)
+  if bufnr_at_filename == -1 or vim.fn.getbufinfo(bufnr_at_filename)[1].loaded == 0 then
+    notify.info("No loaded buffer coincides with " .. notify_node)
+    return
+  end
+
+  local force = opts.force
+  -- check if buffer is modified
+  local buf_modified = vim.fn.getbufinfo(bufnr_at_filename)[1].changed
+  if not force and buf_modified == 1 then
+    notify.error("Buffer for file " .. notify_node .. " is modified")
+    return
+  end
+
+  buf_fn({ filename, bang = force })
+end
+
+return M

lua/nvim-tree/actions/node/file-popup.lua

@@ -50,13 +50,16 @@ local function setup_window(node)
     file_path = node.absolute_path,
   }
   local bufnr = vim.api.nvim_create_buf(false, true)
+  vim.bo[bufnr].bufhidden = "wipe"
   vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, lines)
   vim.api.nvim_win_set_buf(winnr, bufnr)
 end
 
 function M.close_popup()
   if current_popup ~= nil then
-    vim.api.nvim_win_close(current_popup.winnr, true)
+    if vim.api.nvim_win_is_valid(current_popup.winnr) then
+      vim.api.nvim_win_close(current_popup.winnr, true)
+    end
     vim.cmd("augroup NvimTreeRemoveFilePopup | au! CursorMoved | augroup END")
 
     current_popup = nil

lua/nvim-tree/actions/node/init.lua

@@ -4,6 +4,7 @@ M.file_popup = require("nvim-tree.actions.node.file-popup")
 M.open_file = require("nvim-tree.actions.node.open-file")
 M.run_command = require("nvim-tree.actions.node.run-command")
 M.system_open = require("nvim-tree.actions.node.system-open")
+M.buffer = require("nvim-tree.actions.node.buffer")
 
 function M.setup(opts)
   require("nvim-tree.actions.node.system-open").setup(opts)

lua/nvim-tree/actions/node/open-file.lua

@@ -2,7 +2,8 @@
 local lib = require("nvim-tree.lib")
 local notify = require("nvim-tree.notify")
 local utils = require("nvim-tree.utils")
-local view = require("nvim-tree.view")
+local core = require("nvim-tree.core")
+local full_name = require("nvim-tree.renderer.components.full-name")
 
 local M = {}
 
@@ -19,9 +20,10 @@ end
 ---Get all windows in the current tabpage that aren't NvimTree.
 ---@return table with valid win_ids
 local function usable_win_ids()
+  local explorer = core.get_explorer()
   local tabpage = vim.api.nvim_get_current_tabpage()
   local win_ids = vim.api.nvim_tabpage_list_wins(tabpage)
-  local tree_winid = view.get_winnr(tabpage)
+  local tree_winid = explorer and explorer.view:get_winid(tabpage, "open-file.usable_win_ids")
 
   return vim.tbl_filter(function(id)
     local bufid = vim.api.nvim_win_get_buf(id)
@@ -39,21 +41,15 @@ local function usable_win_ids()
     end
 
     local win_config = vim.api.nvim_win_get_config(id)
-    return id ~= tree_winid and win_config.focusable and not win_config.external or false
+    return id ~= tree_winid
+      and id ~= full_name.popup_win
+      and win_config.focusable
+      and not win_config.hide
+      and not win_config.external
+      or false
   end, win_ids)
 end
 
----Find the first window in the tab that is not NvimTree.
----@return integer -1 if none available
-local function first_win_id()
-  local selectable = usable_win_ids()
-  if #selectable > 0 then
-    return selectable[1]
-  else
-    return -1
-  end
-end
-
 ---Get user to pick a window in the tab that is not NvimTree.
 ---@return integer|nil -- If a valid window was picked, return its id. If an
 ---       invalid window was picked / user canceled, return nil. If there are
@@ -75,10 +71,19 @@ local function pick_win_id()
   end
 
   local i = 1
-  local win_opts = {}
+  local win_opts_selectable = {}
+  local win_opts_unselectable = {}
   local win_map = {}
   local laststatus = vim.o.laststatus
   vim.o.laststatus = 2
+  local fillchars = vim.opt.fillchars:get()
+  local stl = fillchars.stl
+  local stlnc = fillchars.stlnc
+  fillchars.stl = nil
+  fillchars.stlnc = nil
+  vim.opt.fillchars = fillchars
+  fillchars.stl = stl
+  fillchars.stlnc = stlnc
 
   local tabpage = vim.api.nvim_get_current_tabpage()
   local win_ids = vim.api.nvim_tabpage_list_wins(tabpage)
@@ -89,19 +94,16 @@ local function pick_win_id()
 
   if laststatus == 3 then
     for _, win_id in ipairs(not_selectable) do
-      local ok_status, statusline, ok_hl, winhl
+      local ok_status, statusline
 
       if vim.fn.has("nvim-0.10") == 1 then
         ok_status, statusline = pcall(vim.api.nvim_get_option_value, "statusline", { win = win_id })
-        ok_hl, winhl = pcall(vim.api.nvim_get_option_value, "winhl", { win = win_id })
       else
         ok_status, statusline = pcall(vim.api.nvim_win_get_option, win_id, "statusline") ---@diagnostic disable-line: deprecated
-        ok_hl, winhl = pcall(vim.api.nvim_win_get_option, win_id, "winhl") ---@diagnostic disable-line: deprecated
       end
 
-      win_opts[win_id] = {
+      win_opts_unselectable[win_id] = {
         statusline = ok_status and statusline or "",
-        winhl = ok_hl and winhl or "",
       }
 
       -- Clear statusline for windows not selectable
@@ -126,18 +128,18 @@ local function pick_win_id()
       ok_hl, winhl = pcall(vim.api.nvim_win_get_option, id, "winhl") ---@diagnostic disable-line: deprecated
     end
 
-    win_opts[id] = {
+    win_opts_selectable[id] = {
       statusline = ok_status and statusline or "",
       winhl = ok_hl and winhl or "",
     }
     win_map[char] = id
 
     if vim.fn.has("nvim-0.10") == 1 then
-      vim.api.nvim_set_option_value("statusline", "%=" .. char .. "%=", { win = id })
+      vim.api.nvim_set_option_value("statusline", "%=" .. char .. "%=",                                                { win = id })
-      vim.api.nvim_set_option_value("winhl", "StatusLine:NvimTreeWindowPicker,StatusLineNC:NvimTreeWindowPicker", { win = id })
+      vim.api.nvim_set_option_value("winhl",      "StatusLine:NvimTreeWindowPicker,StatusLineNC:NvimTreeWindowPicker", { win = id })
     else
       vim.api.nvim_win_set_option(id, "statusline", "%=" .. char .. "%=") ---@diagnostic disable-line: deprecated
-      vim.api.nvim_win_set_option(id, "winhl", "StatusLine:NvimTreeWindowPicker,StatusLineNC:NvimTreeWindowPicker") ---@diagnostic disable-line: deprecated
+      vim.api.nvim_win_set_option(id, "winhl",      "StatusLine:NvimTreeWindowPicker,StatusLineNC:NvimTreeWindowPicker") ---@diagnostic disable-line: deprecated
     end
 
     i = i + 1
@@ -156,7 +158,7 @@ local function pick_win_id()
 
   -- Restore window options
   for _, id in ipairs(selectable) do
-    for opt, value in pairs(win_opts[id]) do
+    for opt, value in pairs(win_opts_selectable[id]) do
       if vim.fn.has("nvim-0.10") == 1 then
         vim.api.nvim_set_option_value(opt, value, { win = id })
       else
@@ -169,7 +171,7 @@ local function pick_win_id()
     for _, id in ipairs(not_selectable) do
       -- Ensure window still exists at this point
       if vim.api.nvim_win_is_valid(id) then
-        for opt, value in pairs(win_opts[id]) do
+        for opt, value in pairs(win_opts_unselectable[id]) do
           if vim.fn.has("nvim-0.10") == 1 then
             vim.api.nvim_set_option_value(opt, value, { win = id })
           else
@@ -181,6 +183,7 @@ local function pick_win_id()
   end
 
   vim.o.laststatus = laststatus
+  vim.opt.fillchars = fillchars
 
   if not vim.tbl_contains(vim.split(M.window_picker.chars, ""), resp) then
     return
@@ -191,7 +194,10 @@ end
 
 local function open_file_in_tab(filename)
   if M.quit_on_open then
-    view.close()
+    local explorer = core.get_explorer()
+    if explorer then
+      explorer.view:close(nil, "open-file.open_file_in_tab")
+    end
   end
   if M.relative_path then
     filename = utils.path_relative(filename, vim.fn.getcwd())
@@ -201,7 +207,10 @@ end
 
 local function drop(filename)
   if M.quit_on_open then
-    view.close()
+    local explorer = core.get_explorer()
+    if explorer then
+      explorer.view:close(nil, "open-file.drop")
+    end
   end
   if M.relative_path then
     filename = utils.path_relative(filename, vim.fn.getcwd())
@@ -211,7 +220,10 @@ end
 
 local function tab_drop(filename)
   if M.quit_on_open then
-    view.close()
+    local explorer = core.get_explorer()
+    if explorer then
+      explorer.view:close(nil, "open-file.tab_drop")
+    end
   end
   if M.relative_path then
     filename = utils.path_relative(filename, vim.fn.getcwd())
@@ -232,17 +244,24 @@ local function on_preview(buf_loaded)
       once = true,
     })
   end
-  view.focus()
+  local explorer = core.get_explorer()
+  if explorer then
+    explorer.view:focus()
+  end
 end
 
 local function get_target_winid(mode)
   local target_winid
-  if not M.window_picker.enable or mode == "edit_no_picker" or mode == "preview_no_picker" then
+  if not M.window_picker.enable or string.find(mode, "no_picker") then
     target_winid = lib.target_winid
-
+    local usable_wins = usable_win_ids()
-    -- first available window
+    -- first available usable window
-    if not vim.tbl_contains(vim.api.nvim_tabpage_list_wins(0), target_winid) then
+    if not vim.tbl_contains(usable_wins, target_winid) then
-      target_winid = first_win_id()
+      if #usable_wins > 0 then
+        target_winid = usable_wins[1]
+      else
+        target_winid = -1
+      end
     end
   else
     -- pick a window
@@ -273,6 +292,8 @@ local function set_current_win_no_autocmd(winid, autocmd)
 end
 
 local function open_in_new_window(filename, mode)
+  local explorer = core.get_explorer()
+
   if type(mode) ~= "string" then
     mode = ""
   end
@@ -282,6 +303,11 @@ local function open_in_new_window(filename, mode)
     return
   end
 
+  local position = string.find(mode, "no_picker")
+  if position then
+    mode = string.sub(mode, 0, position - 2)
+  end
+
   -- non-floating, non-nvim-tree windows
   local win_ids = vim.tbl_filter(function(id)
     local config = vim.api.nvim_win_get_config(id)
@@ -290,7 +316,11 @@ local function open_in_new_window(filename, mode)
   end, vim.api.nvim_list_wins())
 
   local create_new_window = #win_ids == 1 -- This implies that the nvim-tree window is the only one
-  local new_window_side = (view.View.side == "right") and "aboveleft" or "belowright"
+
+  local new_window_side = "belowright"
+  if explorer and (explorer.view.side == "right") then
+    new_window_side = "aboveleft"
+  end
 
   -- Target is invalid: create new window
   if not vim.tbl_contains(win_ids, target_winid) then
@@ -322,7 +352,7 @@ local function open_in_new_window(filename, mode)
     end
   end
 
-  if (mode == "preview" or mode == "preview_no_picker") and view.View.float.enable then
+  if (mode == "preview" or mode == "preview_no_picker") and explorer and explorer.opts.view.float.enable then
     -- ignore "WinLeave" autocmd on preview
     -- because the registered "WinLeave"
     -- will kill the floating window immediately
@@ -333,9 +363,9 @@ local function open_in_new_window(filename, mode)
 
   local fname
   if M.relative_path then
-    fname = vim.fn.fnameescape(utils.path_relative(filename, vim.fn.getcwd()))
+    fname = utils.escape_special_chars(vim.fn.fnameescape(utils.path_relative(filename, vim.fn.getcwd())))
   else
-    fname = vim.fn.fnameescape(filename)
+    fname = utils.escape_special_chars(vim.fn.fnameescape(filename))
   end
 
   local command
@@ -362,7 +392,12 @@ local function is_already_loaded(filename)
 end
 
 local function edit_in_current_buf(filename)
-  require("nvim-tree.view").abandon_current_window()
+  local explorer = core.get_explorer()
+
+  if explorer then
+    explorer.view:abandon_current_window()
+  end
+
   if M.relative_path then
     filename = utils.path_relative(filename, vim.fn.getcwd())
   end
@@ -371,29 +406,31 @@ end
 
 ---@param mode string
 ---@param filename string
+---@return nil
 function M.fn(mode, filename)
-  local fname = utils.escape_special_chars(filename)
+  local explorer = core.get_explorer()
+
   if type(mode) ~= "string" then
     mode = ""
   end
 
   if mode == "tabnew" then
-    return open_file_in_tab(fname)
+    return open_file_in_tab(filename)
   end
 
   if mode == "drop" then
-    return drop(fname)
+    return drop(filename)
   end
 
   if mode == "tab_drop" then
-    return tab_drop(fname)
+    return tab_drop(filename)
   end
 
   if mode == "edit_in_place" then
-    return edit_in_current_buf(fname)
+    return edit_in_current_buf(filename)
   end
 
-  local buf_loaded = is_already_loaded(fname)
+  local buf_loaded = is_already_loaded(filename)
 
   local found_win = utils.get_win_buf_from_path(filename)
   if found_win and (mode == "preview" or mode == "preview_no_picker") then
@@ -401,29 +438,29 @@ function M.fn(mode, filename)
   end
 
   if not found_win then
-    open_in_new_window(fname, mode)
+    open_in_new_window(filename, mode)
   else
     vim.api.nvim_set_current_win(found_win)
     vim.bo.bufhidden = ""
   end
 
-  if M.resize_window then
+  if M.resize_window and explorer then
-    view.resize()
+    explorer.view:resize()
   end
 
   if mode == "preview" or mode == "preview_no_picker" then
     return on_preview(buf_loaded)
   end
 
-  if M.quit_on_open then
+  if M.quit_on_open and explorer then
-    view.close()
+    explorer.view:close(nil, "open-file.fn")
   end
 end
 
 function M.setup(opts)
   M.quit_on_open = opts.actions.open_file.quit_on_open
   M.resize_window = opts.actions.open_file.resize_window
-  M.relative_path = opts.experimental.actions.open_file.relative_path
+  M.relative_path = opts.actions.open_file.relative_path
   if opts.actions.open_file.window_picker.chars then
     opts.actions.open_file.window_picker.chars = tostring(opts.actions.open_file.window_picker.chars):upper()
   end

lua/nvim-tree/actions/node/system-open.lua

@@ -64,7 +64,7 @@ function M.fn(node)
   M.open(node)
 end
 
--- TODO always use native once 0.10 is the minimum neovim version
+-- TODO #2430 always use native once 0.10 is the minimum neovim version
 function M.setup(opts)
   M.config = {}
   M.config.system_open = opts.system_open or {}

lua/nvim-tree/actions/root/change-dir.lua

@@ -25,7 +25,7 @@ end
 ---@param new_tabpage integer
 ---@return boolean
 local function is_window_event(new_tabpage)
-  local is_event_scope_window = vim.v.event.scope == "window" or vim.v.event.changed_window
+  local is_event_scope_window = vim.v.event.scope == "window" or vim.v.event.changed_window or false
   return is_event_scope_window and new_tabpage == M.current_tab
 end
 
@@ -85,7 +85,7 @@ M.force_dirchange = add_profiling_to(function(foldername, should_open_view)
     if should_change_dir() then
       cd(M.options.global, foldername)
     end
-    core.init(foldername)
+    core.init(foldername, "change-dir")
   end
 
   if should_open_view then

lua/nvim-tree/actions/tree/find-file.lua

@@ -1,6 +1,5 @@
 local core = require("nvim-tree.core")
 local lib = require("nvim-tree.lib")
-local view = require("nvim-tree.view")
 local finders_find_file = require("nvim-tree.actions.finders.find-file")
 
 local M = {}
@@ -41,11 +40,12 @@ function M.fn(opts)
     return
   end
 
-  if view.is_visible() then
+  local explorer = core.get_explorer()
+  if explorer and explorer.view:is_visible(nil, "tree/find-file.fn") then
     -- focus
     if opts.focus then
       lib.set_target_win()
-      view.focus()
+      explorer.view:focus()
     end
   elseif opts.open then
     -- open

lua/nvim-tree/actions/tree/modifiers/collapse-all.lua

@@ -1,52 +0,0 @@
-local utils = require("nvim-tree.utils")
-local core = require("nvim-tree.core")
-local lib = require("nvim-tree.lib")
-local Iterator = require("nvim-tree.iterators.node-iterator")
-
-local M = {}
-
----@return fun(path: string): boolean
-local function buf_match()
-  local buffer_paths = vim.tbl_map(function(buffer)
-    return vim.api.nvim_buf_get_name(buffer)
-  end, vim.api.nvim_list_bufs())
-
-  return function(path)
-    for _, buffer_path in ipairs(buffer_paths) do
-      local matches = utils.str_find(buffer_path, path)
-      if matches then
-        return true
-      end
-    end
-    return false
-  end
-end
-
----@param keep_buffers boolean
-function M.fn(keep_buffers)
-  local node = lib.get_node_at_cursor()
-  local explorer = core.get_explorer()
-
-  if explorer == nil then
-    return
-  end
-
-  local matches = buf_match()
-
-  Iterator.builder(explorer.nodes)
-    :hidden()
-    :applier(function(n)
-      if n.nodes ~= nil then
-        n.open = keep_buffers == true and matches(n.absolute_path)
-      end
-    end)
-    :recursor(function(n)
-      return n.group_next and { n.group_next } or n.nodes
-    end)
-    :iterate()
-
-  explorer.renderer:draw()
-  utils.focus_node_or_parent(node)
-end
-
-return M

lua/nvim-tree/actions/tree/modifiers/collapse.lua

@@ -0,0 +1,81 @@
+local utils = require("nvim-tree.utils")
+local core = require("nvim-tree.core")
+local Iterator = require("nvim-tree.iterators.node-iterator")
+
+local FileNode = require("nvim-tree.node.file")
+local DirectoryNode = require("nvim-tree.node.directory")
+
+local M = {}
+
+---@return fun(path: string): boolean
+local function buf_match()
+  local buffer_paths = vim.tbl_map(function(buffer)
+    return vim.api.nvim_buf_get_name(buffer)
+  end, vim.api.nvim_list_bufs())
+
+  return function(path)
+    for _, buffer_path in ipairs(buffer_paths) do
+      local matches = utils.str_find(buffer_path, path)
+      if matches then
+        return true
+      end
+    end
+    return false
+  end
+end
+
+---Collapse a node, root if nil
+---@param node Node?
+---@param opts ApiCollapseOpts
+local function collapse(node, opts)
+  local explorer = core.get_explorer()
+  if not explorer then
+    return
+  end
+
+  node = node or explorer
+
+  local node_at_cursor = explorer:get_node_at_cursor()
+  if not node_at_cursor then
+    return
+  end
+
+  local matches = buf_match()
+
+  Iterator.builder({ node:is(FileNode) and node.parent or node:as(DirectoryNode) })
+    :hidden()
+    :applier(function(n)
+      local dir = n:as(DirectoryNode)
+      if dir then
+        dir.open = opts.keep_buffers == true and matches(dir.absolute_path)
+      end
+    end)
+    :recursor(function(n)
+      return n.group_next and { n.group_next } or n.nodes
+    end)
+    :iterate()
+
+  explorer.renderer:draw()
+  utils.focus_node_or_parent(node_at_cursor)
+end
+
+
+---@param opts ApiCollapseOpts|boolean|nil legacy -> opts.keep_buffers
+function M.all(opts)
+  -- legacy arguments
+  if type(opts) == "boolean" then
+    opts = {
+      keep_buffers = opts,
+    }
+  end
+
+  collapse(nil, opts or {})
+end
+
+---@param node Node
+---@param opts ApiCollapseOpts?
+function M.node(node, opts)
+  collapse(node, opts or {})
+end
+
+return M

lua/nvim-tree/actions/tree/modifiers/expand.lua

@@ -1,7 +1,9 @@
 local core = require("nvim-tree.core")
 local Iterator = require("nvim-tree.iterators.node-iterator")
 local notify = require("nvim-tree.notify")
-local lib = require("nvim-tree.lib")
+
+local FileNode = require("nvim-tree.node.file")
+local DirectoryNode = require("nvim-tree.node.directory")
 
 local M = {}
 
@@ -16,9 +18,9 @@ local function to_lookup_table(list)
   return table
 end
 
----@param node Node
+---@param node DirectoryNode
 local function expand(node)
-  node = lib.get_last_group_node(node)
+  node = node:last_group_node()
   node.open = true
   if #node.nodes == 0 then
     core.get_explorer():expand(node)
@@ -29,9 +31,13 @@ end
 ---@param node Node
 ---@return boolean
 local function should_expand(expansion_count, node)
+  local dir = node:as(DirectoryNode)
+  if not dir then
+    return false
+  end
   local should_halt = expansion_count >= M.MAX_FOLDER_DISCOVERY
-  local should_exclude = M.EXCLUDE[node.name]
+  local should_exclude = M.EXCLUDE[dir.name]
-  return not should_halt and node.nodes and not node.open and not should_exclude
+  return not should_halt and not dir.open and not should_exclude
 end
 
 local function gen_iterator()
@@ -48,7 +54,10 @@ local function gen_iterator()
       :applier(function(node)
         if should_expand(expansion_count, node) then
           expansion_count = expansion_count + 1
-          expand(node)
+          node = node:as(DirectoryNode)
+          if node then
+            expand(node)
+          end
         end
       end)
       :recursor(function(node)
@@ -62,18 +71,38 @@ local function gen_iterator()
   end
 end
 
----@param base_node table
+---@param node Node?
-function M.fn(base_node)
+local function expand_node(node)
-  local explorer = core.get_explorer()
+  if not node then
-  local node = base_node.nodes and base_node or explorer
+    return
+  end
+
   if gen_iterator()(node) then
     notify.warn("expansion iteration was halted after " .. M.MAX_FOLDER_DISCOVERY .. " discovered folders")
   end
+
+  local explorer = core.get_explorer()
   if explorer then
     explorer.renderer:draw()
   end
 end
 
+---Expand the directory node or the root
+---@param node Node
+function M.all(node)
+  expand_node(node and node:as(DirectoryNode) or core.get_explorer())
+end
+
+---Expand the directory node or parent node
+---@param node Node
+function M.node(node)
+  if not node then
+    return
+  end
+
+  expand_node(node:is(FileNode) and node.parent or node:as(DirectoryNode))
+end
+
 function M.setup(opts)
   M.MAX_FOLDER_DISCOVERY = opts.actions.expand_all.max_folder_discovery
   M.EXCLUDE = to_lookup_table(opts.actions.expand_all.exclude)

lua/nvim-tree/actions/tree/modifiers/init.lua

@@ -1,11 +1,10 @@
 local M = {}
 
-M.collapse_all = require("nvim-tree.actions.tree.modifiers.collapse-all")
+M.collapse = require("nvim-tree.actions.tree.modifiers.collapse")
-M.expand_all = require("nvim-tree.actions.tree.modifiers.expand-all")
+M.expand = require("nvim-tree.actions.tree.modifiers.expand")
-M.toggles = require("nvim-tree.actions.tree.modifiers.toggles")
 
 function M.setup(opts)
-  M.expand_all.setup(opts)
+  M.expand.setup(opts)
 end
 
 return M

lua/nvim-tree/actions/tree/modifiers/toggles.lua

@@ -1,72 +0,0 @@
-local lib = require("nvim-tree.lib")
-local utils = require("nvim-tree.utils")
-local core = require("nvim-tree.core")
-local M = {}
-
----@param explorer Explorer
-local function reload(explorer)
-  local node = lib.get_node_at_cursor()
-  explorer:reload_explorer()
-  utils.focus_node_or_parent(node)
-end
-
-local function wrap_explorer(fn)
-  return function(...)
-    local explorer = core.get_explorer()
-    if explorer then
-      return fn(explorer, ...)
-    end
-  end
-end
-
----@param explorer Explorer
-local function custom(explorer)
-  explorer.filters.config.filter_custom = not explorer.filters.config.filter_custom
-  reload(explorer)
-end
-
----@param explorer Explorer
-local function git_ignored(explorer)
-  explorer.filters.config.filter_git_ignored = not explorer.filters.config.filter_git_ignored
-  reload(explorer)
-end
-
----@param explorer Explorer
-local function git_clean(explorer)
-  explorer.filters.config.filter_git_clean = not explorer.filters.config.filter_git_clean
-  reload(explorer)
-end
-
----@param explorer Explorer
-local function no_buffer(explorer)
-  explorer.filters.config.filter_no_buffer = not explorer.filters.config.filter_no_buffer
-  reload(explorer)
-end
-
----@param explorer Explorer
-local function no_bookmark(explorer)
-  explorer.filters.config.filter_no_bookmark = not explorer.filters.config.filter_no_bookmark
-  reload(explorer)
-end
-
----@param explorer Explorer
-local function dotfiles(explorer)
-  explorer.filters.config.filter_dotfiles = not explorer.filters.config.filter_dotfiles
-  reload(explorer)
-end
-
----@param explorer Explorer
-local function enable(explorer)
-  explorer.filters.config.enable = not explorer.filters.config.enable
-  reload(explorer)
-end
-
-M.custom = wrap_explorer(custom)
-M.git_ignored = wrap_explorer(git_ignored)
-M.git_clean = wrap_explorer(git_clean)
-M.no_buffer = wrap_explorer(no_buffer)
-M.no_bookmark = wrap_explorer(no_bookmark)
-M.dotfiles = wrap_explorer(dotfiles)
-M.enable = wrap_explorer(enable)
-
-return M

lua/nvim-tree/actions/tree/open.lua

@@ -1,5 +1,5 @@
+local core = require("nvim-tree.core")
 local lib = require("nvim-tree.lib")
-local view = require("nvim-tree.view")
 local finders_find_file = require("nvim-tree.actions.finders.find-file")
 
 local M = {}
@@ -23,10 +23,12 @@ function M.fn(opts)
     opts.path = nil
   end
 
-  if view.is_visible() then
+  local explorer = core.get_explorer()
+
+  if explorer and explorer.view:is_visible(nil, "open.fn") then
     -- focus
     lib.set_target_win()
-    view.focus()
+    explorer.view:focus()
   else
     -- open
     lib.open({

lua/nvim-tree/actions/tree/resize.lua

@@ -1,14 +1,19 @@
-local view = require("nvim-tree.view")
+local core = require("nvim-tree.core")
 
 local M = {}
 
 ---Resize the tree, persisting the new size.
 ---@param opts ApiTreeResizeOpts|nil
 function M.fn(opts)
+  local explorer = core.get_explorer()
+  if not explorer then
+    return
+  end
+
   if opts == nil then
     -- reset to config values
-    view.configure_width()
+    explorer.view:configure_width()
-    view.resize()
+    explorer.view:resize()
     return
   end
 
@@ -16,19 +21,19 @@ function M.fn(opts)
   local width_cfg = options.width
 
   if width_cfg ~= nil then
-    view.configure_width(width_cfg)
+    explorer.view:configure_width(width_cfg)
-    view.resize()
+    explorer.view:resize()
     return
   end
 
-  if not view.is_width_determined() then
+  if not explorer.view:is_width_determined() then
     -- {absolute} and {relative} do nothing when {width} is a function.
     return
   end
 
   local absolute = options.absolute
   if type(absolute) == "number" then
-    view.resize(absolute)
+    explorer.view:resize(absolute)
     return
   end
 
@@ -39,7 +44,7 @@ function M.fn(opts)
       relative_size = "+" .. relative_size
     end
 
-    view.resize(relative_size)
+    explorer.view:resize(relative_size)
     return
   end
 end

lua/nvim-tree/actions/tree/toggle.lua

@@ -1,5 +1,5 @@
+local core = require("nvim-tree.core")
 local lib = require("nvim-tree.lib")
-local view = require("nvim-tree.view")
 local finders_find_file = require("nvim-tree.actions.finders.find-file")
 
 local M = {}
@@ -10,6 +10,8 @@ local M = {}
 ---@param cwd boolean|nil legacy -> opts.path
 ---@param bang boolean|nil legacy -> opts.update_root
 function M.fn(opts, no_focus, cwd, bang)
+  local explorer = core.get_explorer()
+
   -- legacy arguments
   if type(opts) == "boolean" then
     opts = {
@@ -40,9 +42,9 @@ function M.fn(opts, no_focus, cwd, bang)
     opts.path = nil
   end
 
-  if view.is_visible() then
+  if explorer and explorer.view:is_visible(nil, "toggle.fn") then
     -- close
-    view.close()
+    explorer.view:close(nil, "toggle.fn")
   else
     -- open
     lib.open({

lua/nvim-tree/api.lua

@@ -1,14 +1,17 @@
-local lib = require("nvim-tree.lib")
 local core = require("nvim-tree.core")
-local view = require("nvim-tree.view")
 local utils = require("nvim-tree.utils")
 local actions = require("nvim-tree.actions")
-local appearance_diagnostics = require("nvim-tree.appearance.diagnostics")
+local appearance_hi_test = require("nvim-tree.appearance.hi-test")
 local events = require("nvim-tree.events")
 local help = require("nvim-tree.help")
 local keymap = require("nvim-tree.keymap")
 local notify = require("nvim-tree.notify")
 
+local DirectoryNode = require("nvim-tree.node.directory")
+local FileLinkNode = require("nvim-tree.node.file-link")
+local RootNode = require("nvim-tree.node.root")
+local UserDecorator = require("nvim-tree.renderer.decorator.user")
+
 local Api = {
   tree = {},
   node = {
@@ -20,6 +23,7 @@ local Api = {
     },
     run = {},
     open = {},
+    buffer = {},
   },
   events = {},
   marks = {
@@ -36,46 +40,26 @@ local Api = {
   },
   commands = {},
   diagnostics = {},
+  decorator = {},
 }
 
---- Print error when setup not called.
+---Print error when setup not called.
---- f function to invoke
+---@param fn fun(...): any
----@param f function
+---@return fun(...): any
----@return fun(...) : any
+local function wrap(fn)
-local function wrap(f)
   return function(...)
     if vim.g.NvimTreeSetup == 1 then
-      return f(...)
+      return fn(...)
     else
       notify.error("nvim-tree setup not called")
     end
   end
 end
 
----Inject the node as the first argument if present otherwise do nothing.
----@param fn function function to invoke
-local function wrap_node(fn)
-  return function(node, ...)
-    node = node or lib.get_node_at_cursor()
-    if node then
-      return fn(node, ...)
-    end
-  end
-end
-
----Inject the node or nil as the first argument if absent.
----@param fn function function to invoke
-local function wrap_node_or_nil(fn)
-  return function(node, ...)
-    node = node or lib.get_node_at_cursor()
-    return fn(node, ...)
-  end
-end
-
 ---Invoke a method on the singleton explorer.
 ---Print error when setup not called.
 ---@param explorer_method string explorer method name
----@return fun(...) : any
+---@return fun(...): any
 local function wrap_explorer(explorer_method)
   return wrap(function(...)
     local explorer = core.get_explorer()
@@ -85,11 +69,49 @@ local function wrap_explorer(explorer_method)
   end)
 end
 
+---Inject the node as the first argument if present otherwise do nothing.
+---@param fn fun(node: Node, ...): any
+---@return fun(node: Node?, ...): any
+local function wrap_node(fn)
+  return function(node, ...)
+    node = node or wrap_explorer("get_node_at_cursor")()
+    if node then
+      return fn(node, ...)
+    end
+  end
+end
+
+---Inject the node or nil as the first argument if absent.
+---@param fn fun(node: Node?, ...): any
+---@return fun(node: Node?, ...): any
+local function wrap_node_or_nil(fn)
+  return function(node, ...)
+    node = node or wrap_explorer("get_node_at_cursor")()
+    return fn(node, ...)
+  end
+end
+
 ---Invoke a member's method on the singleton explorer.
 ---Print error when setup not called.
 ---@param explorer_member string explorer member name
 ---@param member_method string method name to invoke on member
----@return fun(...) : any
+---@param ... any passed to method
+---@return fun(...): any
+local function wrap_explorer_member_args(explorer_member, member_method, ...)
+  local method_args = ...
+  return wrap(function(...)
+    local explorer = core.get_explorer()
+    if explorer then
+      return explorer[explorer_member][member_method](explorer[explorer_member], method_args, ...)
+    end
+  end)
+end
+
+---Invoke a member's method on the singleton explorer.
+---Print error when setup not called.
+---@param explorer_member string explorer member name
+---@param member_method string method name to invoke on member
+---@return fun(...): any
 local function wrap_explorer_member(explorer_member, member_method)
   return wrap(function(...)
     local explorer = core.get_explorer()
@@ -118,9 +140,9 @@ Api.tree.focus = Api.tree.open
 ---@field focus boolean|nil default true
 
 Api.tree.toggle = wrap(actions.tree.toggle.fn)
-Api.tree.close = wrap(view.close)
+Api.tree.close = wrap_explorer_member("view", "close")
-Api.tree.close_in_this_tab = wrap(view.close_this_tab_only)
+Api.tree.close_in_this_tab = wrap_explorer_member("view", "close_this_tab_only")
-Api.tree.close_in_all_tabs = wrap(view.close_all_tabs)
+Api.tree.close_in_all_tabs = wrap_explorer_member("view", "close_all_tabs")
 Api.tree.reload = wrap_explorer("reload_explorer")
 
 ---@class ApiTreeResizeOpts
@@ -135,16 +157,19 @@ Api.tree.change_root = wrap(function(...)
 end)
 
 Api.tree.change_root_to_node = wrap_node(function(node)
-  if node.name == ".." then
+  if node.name == ".." or node:is(RootNode) then
     actions.root.change_dir.fn("..")
-  elseif node.nodes ~= nil then
+  else
-    actions.root.change_dir.fn(lib.get_last_group_node(node).absolute_path)
+    node = node:as(DirectoryNode)
+    if node then
+      actions.root.change_dir.fn(node:last_group_node().absolute_path)
+    end
   end
 end)
 
 Api.tree.change_root_to_parent = wrap_node(actions.root.dir_up.fn)
-Api.tree.get_node_under_cursor = wrap(lib.get_node_at_cursor)
+Api.tree.get_node_under_cursor = wrap_explorer("get_node_at_cursor")
-Api.tree.get_nodes = wrap(lib.get_nodes)
+Api.tree.get_nodes = wrap_explorer("get_nodes")
 
 ---@class ApiTreeFindFileOpts
 ---@field buf string|number|nil
@@ -156,15 +181,19 @@ Api.tree.get_nodes = wrap(lib.get_nodes)
 
 Api.tree.find_file = wrap(actions.tree.find_file.fn)
 Api.tree.search_node = wrap(actions.finders.search_node.fn)
-Api.tree.collapse_all = wrap(actions.tree.modifiers.collapse_all.fn)
+
-Api.tree.expand_all = wrap_node(actions.tree.modifiers.expand_all.fn)
+---@class ApiCollapseOpts
-Api.tree.toggle_enable_filters = wrap(actions.tree.modifiers.toggles.enable)
+---@field keep_buffers boolean|nil default false
-Api.tree.toggle_gitignore_filter = wrap(actions.tree.modifiers.toggles.git_ignored)
+
-Api.tree.toggle_git_clean_filter = wrap(actions.tree.modifiers.toggles.git_clean)
+Api.tree.collapse_all = wrap(actions.tree.modifiers.collapse.all)
-Api.tree.toggle_no_buffer_filter = wrap(actions.tree.modifiers.toggles.no_buffer)
+Api.tree.expand_all = wrap_node(actions.tree.modifiers.expand.all)
-Api.tree.toggle_custom_filter = wrap(actions.tree.modifiers.toggles.custom)
+Api.tree.toggle_enable_filters = wrap_explorer_member("filters", "toggle")
-Api.tree.toggle_hidden_filter = wrap(actions.tree.modifiers.toggles.dotfiles)
+Api.tree.toggle_gitignore_filter = wrap_explorer_member_args("filters", "toggle", "git_ignored")
-Api.tree.toggle_no_bookmark_filter = wrap(actions.tree.modifiers.toggles.no_bookmark)
+Api.tree.toggle_git_clean_filter = wrap_explorer_member_args("filters", "toggle", "git_clean")
+Api.tree.toggle_no_buffer_filter = wrap_explorer_member_args("filters", "toggle", "no_buffer")
+Api.tree.toggle_custom_filter = wrap_explorer_member_args("filters", "toggle", "custom")
+Api.tree.toggle_hidden_filter = wrap_explorer_member_args("filters", "toggle", "dotfiles")
+Api.tree.toggle_no_bookmark_filter = wrap_explorer_member_args("filters", "toggle", "no_bookmark")
 Api.tree.toggle_help = wrap(help.toggle)
 Api.tree.is_tree_buf = wrap(utils.is_nvim_tree_buf)
 
@@ -172,12 +201,12 @@ Api.tree.is_tree_buf = wrap(utils.is_nvim_tree_buf)
 ---@field tabpage number|nil
 ---@field any_tabpage boolean|nil default false
 
-Api.tree.is_visible = wrap(view.is_visible)
+Api.tree.is_visible = wrap_explorer_member("view", "is_visible")
 
 ---@class ApiTreeWinIdOpts
 ---@field tabpage number|nil default nil
 
-Api.tree.winid = wrap(view.winid)
+Api.tree.winid = wrap_explorer_member("view", "api_winid")
 
 Api.fs.create = wrap_node_or_nil(actions.fs.create_file.fn)
 Api.fs.remove = wrap_node(actions.fs.remove_file.fn)
@@ -196,27 +225,61 @@ Api.fs.copy.absolute_path = wrap_node(wrap_explorer_member("clipboard", "copy_ab
 Api.fs.copy.filename = wrap_node(wrap_explorer_member("clipboard", "copy_filename"))
 Api.fs.copy.basename = wrap_node(wrap_explorer_member("clipboard", "copy_basename"))
 Api.fs.copy.relative_path = wrap_node(wrap_explorer_member("clipboard", "copy_path"))
+---
+---@class NodeEditOpts
+---@field quit_on_open boolean|nil default false
+---@field focus boolean|nil default true
 
 ---@param mode string
----@param node table
+---@param node Node
-local function edit(mode, node)
+---@param edit_opts NodeEditOpts?
-  local path = node.absolute_path
+local function edit(mode, node, edit_opts)
-  if node.link_to and not node.nodes then
+  local file_link = node:as(FileLinkNode)
-    path = node.link_to
+  local path = file_link and file_link.link_to or node.absolute_path
-  end
+  local cur_tabpage = vim.api.nvim_get_current_tabpage()
+
+  local explorer = core.get_explorer()
+
   actions.node.open_file.fn(mode, path)
+
+  edit_opts = edit_opts or {}
+
+  local mode_unsupported_quit_on_open = mode == "drop" or mode == "tab_drop" or mode == "edit_in_place"
+  if not mode_unsupported_quit_on_open and edit_opts.quit_on_open then
+    if explorer then
+      explorer.view:close(cur_tabpage, "api.edit " .. mode)
+    end
+  end
+
+  local mode_unsupported_focus = mode == "drop" or mode == "tab_drop" or mode == "edit_in_place"
+  local focus = edit_opts.focus == nil or edit_opts.focus == true
+  if not mode_unsupported_focus and not focus then
+    -- if mode == "tabnew" a new tab will be opened and we need to focus back to the previous tab
+    if mode == "tabnew" then
+      vim.cmd(":tabprev")
+    end
+    if explorer then
+      explorer.view:focus()
+    end
+  end
 end
 
 ---@param mode string
----@return fun(node: table)
+---@param toggle_group boolean?
+---@return fun(node: Node, edit_opts: NodeEditOpts?)
 local function open_or_expand_or_dir_up(mode, toggle_group)
-  return function(node)
+  ---@param node Node
-    if node.name == ".." then
+  ---@param edit_opts NodeEditOpts?
+  return function(node, edit_opts)
+    local root = node:as(RootNode)
+    local dir = node:as(DirectoryNode)
+
+    if root or node.name == ".." then
       actions.root.change_dir.fn("..")
-    elseif node.nodes then
+    elseif dir then
-      lib.expand_or_collapse(node, toggle_group)
+      dir:expand_or_collapse(toggle_group)
     elseif not toggle_group then
-      edit(mode, node)
+      edit(mode, node, edit_opts)
     end
   end
 end
@@ -227,7 +290,9 @@ Api.node.open.tab_drop = wrap_node(open_or_expand_or_dir_up("tab_drop"))
 Api.node.open.replace_tree_buffer = wrap_node(open_or_expand_or_dir_up("edit_in_place"))
 Api.node.open.no_window_picker = wrap_node(open_or_expand_or_dir_up("edit_no_picker"))
 Api.node.open.vertical = wrap_node(open_or_expand_or_dir_up("vsplit"))
+Api.node.open.vertical_no_picker = wrap_node(open_or_expand_or_dir_up("vsplit_no_picker"))
 Api.node.open.horizontal = wrap_node(open_or_expand_or_dir_up("split"))
+Api.node.open.horizontal_no_picker = wrap_node(open_or_expand_or_dir_up("split_no_picker"))
 Api.node.open.tab = wrap_node(open_or_expand_or_dir_up("tabnew"))
 Api.node.open.toggle_group_empty = wrap_node(open_or_expand_or_dir_up("toggle_group_empty", true))
 Api.node.open.preview = wrap_node(open_or_expand_or_dir_up("preview"))
@@ -256,6 +321,19 @@ Api.node.navigate.diagnostics.prev_recursive = wrap_node(actions.moves.item.fn({
 Api.node.navigate.opened.next = wrap_node(actions.moves.item.fn({ where = "next", what = "opened" }))
 Api.node.navigate.opened.prev = wrap_node(actions.moves.item.fn({ where = "prev", what = "opened" }))
 
+Api.node.expand = wrap_node(actions.tree.modifiers.expand.node)
+Api.node.collapse = wrap_node(actions.tree.modifiers.collapse.node)
+
+---@class ApiNodeDeleteWipeBufferOpts
+---@field force boolean|nil default false
+
+Api.node.buffer.delete = wrap_node(function(node, opts)
+  actions.node.buffer.delete(node, opts)
+end)
+Api.node.buffer.wipe = wrap_node(function(node, opts)
+  actions.node.buffer.wipe(node, opts)
+end)
+
 Api.git.reload = wrap_explorer("reload_git")
 
 Api.events.subscribe = events.subscribe
@@ -279,10 +357,15 @@ Api.config.mappings.get_keymap = wrap(keymap.get_keymap)
 Api.config.mappings.get_keymap_default = wrap(keymap.get_keymap_default)
 Api.config.mappings.default_on_attach = keymap.default_on_attach
 
-Api.diagnostics.hi_test = wrap(appearance_diagnostics.hi_test)
+Api.diagnostics.hi_test = wrap(appearance_hi_test)
 
 Api.commands.get = wrap(function()
   return require("nvim-tree.commands").get()
 end)
 
+---Create a decorator class by calling :extend()
+---See :help nvim-tree-decorators
+---@type nvim_tree.api.decorator.UserDecorator
+Api.decorator.UserDecorator = UserDecorator --[[@as nvim_tree.api.decorator.UserDecorator]]
+
 return Api

lua/nvim-tree/appearance/hi-test.lua

@@ -1,45 +1,48 @@
 local appearance = require("nvim-tree.appearance")
 
+local Class = require("nvim-tree.classic")
+
 -- others with name and links less than this arbitrary value are short
 local SHORT_LEN = 50
 
-local M = {}
+local namespace_hi_test_id = vim.api.nvim_create_namespace("NvimTreeHiTest")
 
----@class HighlightDisplay for :NvimTreeHiTest
+---@class (exact) HighlightDisplay: Class for :NvimTreeHiTest
 ---@field group string nvim-tree highlight group name
 ---@field links string link chain to a concretely defined group
 ---@field def string :hi concrete definition after following any links
-local HighlightDisplay = {}
+local HighlightDisplay = Class:extend()
 
----@param group string nvim-tree highlight group name
+---@class HighlightDisplay
----@return HighlightDisplay
+---@overload fun(args: HighlightDisplayArgs): HighlightDisplay
-function HighlightDisplay:new(group)
-  local o = {}
-  setmetatable(o, self)
-  self.__index = self
 
-  o.group = group
+---@class (exact) HighlightDisplayArgs
-  local concrete = o.group
+---@field group string nvim-tree highlight group name
+
+---@protected
+---@param args HighlightDisplayArgs
+function HighlightDisplay:new(args)
+  self.group = args.group
+
+  local concrete = self.group
 
   -- maybe follow links
   local links = {}
-  local link = vim.api.nvim_get_hl(0, { name = o.group }).link
+  local link = vim.api.nvim_get_hl(0, { name = self.group }).link
   while link do
     table.insert(links, link)
     concrete = link
     link = vim.api.nvim_get_hl(0, { name = link }).link
   end
-  o.links = table.concat(links, " ")
+  self.links = table.concat(links, " ")
 
   -- concrete definition
   local ok, res = pcall(vim.api.nvim_cmd, { cmd = "highlight", args = { concrete } }, { output = true })
   if ok and type(res) == "string" then
-    o.def = res:gsub(".*xxx *", "")
+    self.def = res:gsub(".*xxx *", "")
   else
-    o.def = ""
+    self.def = ""
   end
-
-  return o
 end
 
 ---Render one group.
@@ -51,7 +54,12 @@ function HighlightDisplay:render(bufnr, fmt, l)
   local text = string.format(fmt, self.group, self.links, self.def)
 
   vim.api.nvim_buf_set_lines(bufnr, l, -1, true, { text })
-  vim.api.nvim_buf_add_highlight(bufnr, -1, self.group, l, 0, #self.group)
+
+  if vim.fn.has("nvim-0.11") == 1 and vim.hl and vim.hl.range then
+    vim.hl.range(bufnr, namespace_hi_test_id, self.group, { l, 0 }, { l, #self.group, }, {})
+  else
+    vim.api.nvim_buf_add_highlight(bufnr, -1, self.group, l, 0, #self.group) ---@diagnostic disable-line: deprecated
+  end
 
   return l + 1
 end
@@ -87,7 +95,7 @@ end
 
 ---Run a test similar to :so $VIMRUNTIME/syntax/hitest.vim
 ---Display all nvim-tree and neovim highlight groups, their link chain and actual definition
-function M.hi_test()
+return function()
   -- create a buffer
   local bufnr = vim.api.nvim_create_buf(false, true)
 
@@ -96,7 +104,7 @@ function M.hi_test()
   -- nvim-tree groups, ordered
   local displays = {}
   for _, highlight_group in ipairs(appearance.HIGHLIGHT_GROUPS) do
-    local display = HighlightDisplay:new(highlight_group.group)
+    local display = HighlightDisplay({ group = highlight_group.group })
     table.insert(displays, display)
   end
   l = render_displays("nvim-tree", displays, bufnr, l)
@@ -110,7 +118,7 @@ function M.hi_test()
   if ok then
     for group in string.gmatch(out, "(%w*)%s+xxx") do
       if group:find("NvimTree", 1, true) ~= 1 then
-        local display = HighlightDisplay:new(group)
+        local display = HighlightDisplay({ group = group })
         if #display.group + #display.links > SHORT_LEN then
           table.insert(displays_long, display)
         else
@@ -137,5 +145,3 @@ function M.hi_test()
 
   vim.cmd.buffer(bufnr)
 end
-
-return M

lua/nvim-tree/appearance/init.lua

@@ -134,6 +134,29 @@ M.HIGHLIGHT_GROUPS = {
   { group = "NvimTreeDiagnosticHintFolderHL",  link = "NvimTreeDiagnosticHintFileHL" },
 }
 
+-- winhighlight for most cases
+M.WIN_HL = table.concat({
+  "EndOfBuffer:NvimTreeEndOfBuffer",
+  "CursorLine:NvimTreeCursorLine",
+  "CursorLineNr:NvimTreeCursorLineNr",
+  "LineNr:NvimTreeLineNr",
+  "WinSeparator:NvimTreeWinSeparator",
+  "StatusLine:NvimTreeStatusLine",
+  "StatusLineNC:NvimTreeStatuslineNC",
+  "SignColumn:NvimTreeSignColumn",
+  "Normal:NvimTreeNormal",
+  "NormalNC:NvimTreeNormalNC",
+  "NormalFloat:NvimTreeNormalFloat",
+  "FloatBorder:NvimTreeNormalFloatBorder",
+}, ",")
+
+-- winhighlight for help
+M.WIN_HL_HELP = table.concat({
+  "NormalFloat:NvimTreeNormalFloat",
+  "WinSeparator:NvimTreeWinSeparator",
+  "CursorLine:NvimTreeCursorLine",
+}, ",")
+
 -- nvim-tree highlight groups to legacy
 M.LEGACY_LINKS = {
   NvimTreeModifiedIcon = "NvimTreeModifiedFile",

lua/nvim-tree/buffers.lua

@@ -1,3 +1,5 @@
+local DirectoryNode = require("nvim-tree.node.directory")
+
 local M = {}
 
 ---@type table<string, boolean> record of which file is modified
@@ -21,18 +23,33 @@ function M.reload_modified()
   end
 end
 
----@param node table
+---@param node Node
 ---@return boolean
 function M.is_modified(node)
-  return node
+  if not M.config.modified.enable then
-    and M.config.modified.enable
+    return false
-    and M._modified[node.absolute_path]
+  end
-    and (not node.nodes or M.config.modified.show_on_dirs)
+
-    and (not node.open or M.config.modified.show_on_open_dirs)
+  if not M._modified[node.absolute_path] then
+    return false
+  end
+
+  local dir = node:as(DirectoryNode)
+  if dir then
+    if not M.config.modified.show_on_dirs then
+      return false
+    end
+
+    if dir.open and not M.config.modified.show_on_open_dirs then
+      return false
+    end
+  end
+
+  return true
 end
 
 ---A buffer exists for the node's absolute path
----@param node table
+---@param node Node
 ---@return boolean
 function M.is_opened(node)
   return node and vim.fn.bufloaded(node.absolute_path) > 0

lua/nvim-tree/classic.lua

@@ -0,0 +1,91 @@
+--
+-- classic
+--
+-- Copyright (c) 2014, rxi
+--
+-- This module is free software; you can redistribute it and/or modify it under
+-- the terms of the MIT license. See LICENSE for details.
+--
+-- https://github.com/rxi/classic
+--
+
+---@class (exact) Class
+---@field super Class
+---@field private implements table<Class, boolean>
+local Class = {}
+Class.__index = Class ---@diagnostic disable-line: inject-field
+
+---Default constructor
+---@protected
+function Class:new(...) --luacheck: ignore 212
+end
+
+---Extend a class, setting .super
+function Class:extend()
+  local cls = {}
+  for k, v in pairs(self) do
+    if k:find("__") == 1 then
+      cls[k] = v
+    end
+  end
+  cls.__index = cls
+  cls.super = self
+  setmetatable(cls, self)
+  return cls
+end
+
+---Implement the functions of a mixin
+---Add the mixin to .implements
+---@param mixin Class
+function Class:implement(mixin)
+  if not rawget(self, "implements") then
+    -- set on the class itself instead of parents
+    rawset(self, "implements", {})
+  end
+  self.implements[mixin] = true
+  for k, v in pairs(mixin) do
+    if self[k] == nil and type(v) == "function" then
+      self[k] = v
+    end
+  end
+end
+
+---Object is an instance of class or implements a mixin
+---@generic T
+---@param class T
+---@return boolean
+function Class:is(class)
+  local mt = getmetatable(self)
+  while mt do
+    if mt == class then
+      return true
+    end
+    if mt.implements and mt.implements[class] then
+      return true
+    end
+    mt = getmetatable(mt)
+  end
+  return false
+end
+
+---Return object if :is otherwise nil
+---@generic T
+---@param class T
+---@return T|nil
+function Class:as(class)
+  return self:is(class) and self or nil
+end
+
+---Constructor to create instance, call :new and return
+function Class:__call(...)
+  local obj = setmetatable({}, self)
+  obj:new(...)
+  return obj
+end
+
+-- avoid unused param warnings in abstract methods
+---@param ... any
+function Class:nop(...) --luacheck: ignore 212
+end
+
+return Class

lua/nvim-tree/commands.lua

@@ -1,5 +1,5 @@
 local api = require("nvim-tree.api")
-local view = require("nvim-tree.view")
+local core = require("nvim-tree.core")
 
 local M = {}
 
@@ -111,7 +111,10 @@ local CMDS = {
       bar = true,
     },
     command = function(c)
-      view.resize(c.args)
+      local explorer = core.get_explorer()
+      if explorer then
+        explorer.view:resize(c.args)
+      end
     end,
   },
   {

lua/nvim-tree/core.lua

@@ -1,5 +1,5 @@
 local events = require("nvim-tree.events")
-local view = require("nvim-tree.view")
+local notify = require("nvim-tree.notify")
 local log = require("nvim-tree.log")
 
 local M = {}
@@ -9,13 +9,30 @@ local TreeExplorer = nil
 local first_init_done = false
 
 ---@param foldername string
-function M.init(foldername)
+---@param callsite string
+function M.init(foldername, callsite)
   local profile = log.profile_start("core init %s", foldername)
 
+  log.line("dev", "core.init(%s, %s)", foldername, callsite)
+
   if TreeExplorer then
     TreeExplorer:destroy()
   end
-  TreeExplorer = require("nvim-tree.explorer"):new(foldername)
+
+  local err, path
+
+  if foldername then
+    path, err = vim.loop.fs_realpath(foldername)
+  else
+    path, err = vim.loop.cwd()
+  end
+  if path then
+    TreeExplorer = require("nvim-tree.explorer")({ path = path })
+  else
+    notify.error(err)
+    TreeExplorer = nil
+  end
+
   if not first_init_done then
     events._dispatch_ready()
     first_init_done = true
@@ -40,7 +57,7 @@ end
 ---@return integer
 function M.get_nodes_starting_line()
   local offset = 1
-  if view.is_root_folder_visible(M.get_cwd()) then
+  if TreeExplorer and TreeExplorer.view:is_root_folder_visible(M.get_cwd()) then
     offset = offset + 1
   end
   if TreeExplorer and TreeExplorer.live_filter.filter then

lua/nvim-tree/diagnostics.lua

@@ -1,8 +1,9 @@
 local core = require("nvim-tree.core")
 local utils = require("nvim-tree.utils")
-local view = require("nvim-tree.view")
 local log = require("nvim-tree.log")
 
+local DirectoryNode = require("nvim-tree.node.directory")
+
 local M = {}
 
 ---COC severity level strings to LSP severity levels
@@ -15,7 +16,7 @@ local COC_SEVERITY_LEVELS = {
 }
 
 ---Absolute Node path to LSP severity level
----@alias NodeSeverities table<string, lsp.DiagnosticSeverity>
+---@alias NodeSeverities table<string, vim.diagnostic.Severity>
 
 ---@class DiagStatus
 ---@field value lsp.DiagnosticSeverity|nil
@@ -35,33 +36,6 @@ local function uniformize_path(path)
   return utils.canonical_path(path:gsub("\\", "/"))
 end
 
----Marshal severities from LSP. Does nothing when LSP disabled.
----@return NodeSeverities
-local function from_nvim_lsp()
-  local buffer_severity = {}
-
-  -- is_enabled is not present in all 0.10 builds/releases, see #2781
-  local is_enabled = false
-  if vim.fn.has("nvim-0.10") == 1 and type(vim.diagnostic.is_enabled) == "function" then
-    is_enabled = vim.diagnostic.is_enabled()
-  elseif type(vim.diagnostic.is_disabled) == "function" then ---@diagnostic disable-line: deprecated
-    is_enabled = not vim.diagnostic.is_disabled() ---@diagnostic disable-line: deprecated
-  end
-
-  if is_enabled then
-    for _, diagnostic in ipairs(vim.diagnostic.get(nil, { severity = M.severity })) do
-      if diagnostic.severity and diagnostic.bufnr and vim.api.nvim_buf_is_valid(diagnostic.bufnr) then
-        local bufname = uniformize_path(vim.api.nvim_buf_get_name(diagnostic.bufnr))
-        if not buffer_severity[bufname] or diagnostic.severity < buffer_severity[bufname] then
-          buffer_severity[bufname] = diagnostic.severity
-        end
-      end
-    end
-  end
-
-  return buffer_severity
-end
-
 ---Severity is within diagnostics.severity.min, diagnostics.severity.max
 ---@param severity lsp.DiagnosticSeverity
 ---@param config table
@@ -125,7 +99,7 @@ end
 local function from_cache(node)
   local nodepath = uniformize_path(node.absolute_path)
   local max_severity = nil
-  if not node.nodes then
+  if not node:is(DirectoryNode) then
     -- direct cache hit for files
     max_severity = NODE_SEVERITIES[nodepath]
   else
@@ -133,11 +107,8 @@ local function from_cache(node)
     for bufname, severity in pairs(NODE_SEVERITIES) do
       local node_contains_buf = vim.startswith(bufname, nodepath .. "/")
       if node_contains_buf then
-        if severity == M.severity.max then
+        if not max_severity or severity < max_severity then
           max_severity = severity
-          break
-        else
-          max_severity = math.min(max_severity or severity, severity)
         end
       end
     end
@@ -145,28 +116,80 @@ local function from_cache(node)
   return { value = max_severity, cache_version = NODE_SEVERITIES_VERSION }
 end
 
----Fired on DiagnosticChanged and CocDiagnosticChanged events:
+---Fired on DiagnosticChanged for a single buffer.
+---This will be called on set and reset of diagnostics.
+---On disabling LSP, a reset event will be sent for all buffers.
+---@param ev table standard event with data.diagnostics populated
+function M.update_lsp(ev)
+  if not M.enable or not ev or not ev.data or not ev.data.diagnostics then
+    return
+  end
+
+  local profile_event = log.profile_start("DiagnosticChanged event")
+
+  local diagnostics = vim.diagnostic.get(ev.buf)
+
+  -- use the buffer from the event, as ev.data.diagnostics will be empty on resolved diagnostics
+  local bufname = uniformize_path(vim.api.nvim_buf_get_name(ev.buf))
+
+  ---@type vim.diagnostic.Severity?
+  local new_severity = nil
+
+  -- most severe (lowest) severity in user range
+  for _, diagnostic in ipairs(diagnostics) do
+    if diagnostic.severity >= M.severity.max and diagnostic.severity <= M.severity.min then
+      if not new_severity or diagnostic.severity < new_severity then
+        new_severity = diagnostic.severity
+      end
+    end
+  end
+
+  -- record delta and schedule a redraw
+  if new_severity ~= NODE_SEVERITIES[bufname] then
+    NODE_SEVERITIES[bufname] = new_severity
+    NODE_SEVERITIES_VERSION = NODE_SEVERITIES_VERSION + 1
+
+    utils.debounce("DiagnosticChanged redraw", M.debounce_delay, function()
+      local profile_redraw = log.profile_start("DiagnosticChanged redraw")
+
+      local explorer = core.get_explorer()
+      if explorer then
+        explorer.renderer:draw()
+      end
+
+      log.profile_end(profile_redraw)
+    end)
+  end
+
+  log.profile_end(profile_event)
+end
+
+---Fired on CocDiagnosticChanged events:
 ---debounced retrieval, cache update, version increment and draw
-function M.update()
+function M.update_coc()
   if not M.enable then
     return
   end
-  utils.debounce("diagnostics", M.debounce_delay, function()
+  utils.debounce("CocDiagnosticChanged update", M.debounce_delay, function()
-    local profile = log.profile_start("diagnostics update")
+    local profile = log.profile_start("CocDiagnosticChanged update")
-    if is_using_coc() then
+    NODE_SEVERITIES = from_coc()
-      NODE_SEVERITIES = from_coc()
-    else
-      NODE_SEVERITIES = from_nvim_lsp()
-    end
     NODE_SEVERITIES_VERSION = NODE_SEVERITIES_VERSION + 1
     if log.enabled("diagnostics") then
       for bufname, severity in pairs(NODE_SEVERITIES) do
-        log.line("diagnostics", "Indexing bufname '%s' with severity %d", bufname, severity)
+        log.line("diagnostics", "COC Indexing bufname '%s' with severity %d", bufname, severity)
       end
     end
     log.profile_end(profile)
-    if view.is_buf_valid(view.get_bufnr()) then
+
-      local explorer = core.get_explorer()
+    local explorer = core.get_explorer()
+
+    local bufnr
+    if explorer then
+      bufnr = explorer.view:get_bufnr("diagnostics.update_coc")
+    end
+
+    local should_draw = bufnr and vim.api.nvim_buf_is_valid(bufnr) and vim.api.nvim_buf_is_loaded(bufnr)
+    if should_draw then
       if explorer then
         explorer.renderer:draw()
       end
@@ -184,7 +207,7 @@ function M.get_diag_status(node)
   end
 
   -- dir but we shouldn't show on dirs at all
-  if node.nodes ~= nil and not M.show_on_dirs then
+  if node:is(DirectoryNode) and not M.show_on_dirs then
     return nil
   end
 
@@ -195,13 +218,15 @@ function M.get_diag_status(node)
     node.diag_status = from_cache(node)
   end
 
+  local dir = node:as(DirectoryNode)
+
   -- file
-  if not node.nodes then
+  if not dir then
     return node.diag_status
   end
 
   -- dir is closed or we should show on open_dirs
-  if not node.open or M.show_on_open_dirs then
+  if not dir.open or M.show_on_open_dirs then
     return node.diag_status
   end
   return nil

lua/nvim-tree/enum.lua

@@ -1,24 +1,5 @@
 local M = {}
 
----Setup options for "highlight_*"
----@enum HL_POSITION
-M.HL_POSITION = {
-  none = 0,
-  icon = 1,
-  name = 2,
-  all = 4,
-}
-
----Setup options for "*_placement"
----@enum ICON_PLACEMENT
-M.ICON_PLACEMENT = {
-  none = 0,
-  signcolumn = 1,
-  before = 2,
-  after = 3,
-  right_align = 4,
-}
-
 ---Reason for filter in filter.lua
 ---@enum FILTER_REASON
 M.FILTER_REASON = {

lua/nvim-tree/events.lua

@@ -8,6 +8,7 @@ M.Event = {
   Ready = "Ready",
   WillRenameNode = "WillRenameNode",
   NodeRenamed = "NodeRenamed",
+  TreePreOpen = "TreePreOpen",
   TreeOpen = "TreeOpen",
   TreeClose = "TreeClose",
   WillCreateFile = "WillCreateFile",
@@ -91,6 +92,11 @@ function M._dispatch_folder_removed(folder_name)
   dispatch(M.Event.FolderRemoved, { folder_name = folder_name })
 end
 
+--@private
+function M._dispatch_on_tree_pre_open()
+  dispatch(M.Event.TreePreOpen, nil)
+end
+
 --@private
 function M._dispatch_on_tree_open()
   dispatch(M.Event.TreeOpen, nil)

lua/nvim-tree/explorer/filters.lua

@@ -1,52 +1,65 @@
 local utils = require("nvim-tree.utils")
 local FILTER_REASON = require("nvim-tree.enum").FILTER_REASON
 
----@class Filters to handle all opts.filters and related API
+local Class = require("nvim-tree.classic")
----@field config table hydrated user opts.filters
+
+---@alias FilterType "custom" | "dotfiles" | "git_ignored" | "git_clean" | "no_buffer" | "no_bookmark"
+
+---@class (exact) Filters: Class
+---@field enabled boolean
+---@field state table<FilterType, boolean>
 ---@field private explorer Explorer
 ---@field private exclude_list string[] filters.exclude
----@field private ignore_list string[] filters.custom string table
+---@field private ignore_list table<string, boolean> filters.custom string table
 ---@field private custom_function (fun(absolute_path: string): boolean)|nil filters.custom function
-local Filters = {}
+local Filters = Class:extend()
 
----@param opts table user options
+---@class Filters
----@param explorer Explorer
+---@overload fun(args: FiltersArgs): Filters
----@return Filters
+
-function Filters:new(opts, explorer)
+---@class (exact) FiltersArgs
-  local o = {
+---@field explorer Explorer
-    explorer = explorer,
+
-    ignore_list = {},
+---@protected
-    exclude_list = opts.filters.exclude,
+---@param args FiltersArgs
-    custom_function = nil,
+function Filters:new(args)
-    config = {
+  args.explorer:log_new("Filters")
-      enable = opts.filters.enable,
+
-      filter_custom = true,
+  self.explorer        = args.explorer
-      filter_dotfiles = opts.filters.dotfiles,
+  self.ignore_list     = {}
-      filter_git_ignored = opts.filters.git_ignored,
+  self.exclude_list    = self.explorer.opts.filters.exclude
-      filter_git_clean = opts.filters.git_clean,
+  self.custom_function = nil
-      filter_no_buffer = opts.filters.no_buffer,
+
-      filter_no_bookmark = opts.filters.no_bookmark,
+  self.enabled         = self.explorer.opts.filters.enable
-    },
+  self.state           = {
+    custom      = true,
+    dotfiles    = self.explorer.opts.filters.dotfiles,
+    git_ignored = self.explorer.opts.filters.git_ignored,
+    git_clean   = self.explorer.opts.filters.git_clean,
+    no_buffer   = self.explorer.opts.filters.no_buffer,
+    no_bookmark = self.explorer.opts.filters.no_bookmark,
   }
 
-  local custom_filter = opts.filters.custom
+  local custom_filter  = self.explorer.opts.filters.custom
   if type(custom_filter) == "function" then
-    o.custom_function = custom_filter
+    self.custom_function = custom_filter
   else
     if custom_filter and #custom_filter > 0 then
       for _, filter_name in pairs(custom_filter) do
-        o.ignore_list[filter_name] = true
+        self.ignore_list[filter_name] = true
       end
     end
   end
-  setmetatable(o, self)
-  self.__index = self
-  return o
 end
 
+function Filters:destroy()
+  self.explorer:log_destroy("Filters")
+end
+
+---@private
 ---@param path string
 ---@return boolean
-local function is_excluded(self, path)
+function Filters:is_excluded(path)
   for _, node in ipairs(self.exclude_list) do
     if path:match(node) then
       return true
@@ -56,26 +69,27 @@ local function is_excluded(self, path)
 end
 
 ---Check if the given path is git clean/ignored
+---@private
 ---@param path string Absolute path
----@param git_status table from prepare
+---@param project GitProject from prepare
 ---@return boolean
-local function git(self, path, git_status)
+function Filters:git(path, project)
-  if type(git_status) ~= "table" or type(git_status.files) ~= "table" or type(git_status.dirs) ~= "table" then
+  if type(project) ~= "table" or type(project.files) ~= "table" or type(project.dirs) ~= "table" then
     return false
   end
 
   -- default status to clean
-  local status = git_status.files[path]
+  local xy = project.files[path]
-  status = status or git_status.dirs.direct[path] and git_status.dirs.direct[path][1]
+  xy = xy or project.dirs.direct[path] and project.dirs.direct[path][1]
-  status = status or git_status.dirs.indirect[path] and git_status.dirs.indirect[path][1]
+  xy = xy or project.dirs.indirect[path] and project.dirs.indirect[path][1]
 
   -- filter ignored; overrides clean as they are effectively dirty
-  if self.config.filter_git_ignored and status == "!!" then
+  if self.state.git_ignored and xy == "!!" then
     return true
   end
 
   -- filter clean
-  if self.config.filter_git_clean and not status then
+  if self.state.git_clean and not xy then
     return true
   end
 
@@ -83,11 +97,12 @@ local function git(self, path, git_status)
 end
 
 ---Check if the given path has no listed buffer
+---@private
 ---@param path string Absolute path
 ---@param bufinfo table vim.fn.getbufinfo { buflisted = 1 }
 ---@return boolean
-local function buf(self, path, bufinfo)
+function Filters:buf(path, bufinfo)
-  if not self.config.filter_no_buffer or type(bufinfo) ~= "table" then
+  if not self.state.no_buffer or type(bufinfo) ~= "table" then
     return false
   end
 
@@ -101,17 +116,21 @@ local function buf(self, path, bufinfo)
   return true
 end
 
+---@private
 ---@param path string
 ---@return boolean
-local function dotfile(self, path)
+function Filters:dotfile(path)
-  return self.config.filter_dotfiles and utils.path_basename(path):sub(1, 1) == "."
+  return self.state.dotfiles and utils.path_basename(path):sub(1, 1) == "."
 end
 
+---Bookmark is present
+---@private
 ---@param path string
 ---@param path_type string|nil filetype of path
 ---@param bookmarks table<string, string|nil> path, filetype table of bookmarked files
-local function bookmark(self, path, path_type, bookmarks)
+---@return boolean
-  if not self.config.filter_no_bookmark then
+function Filters:bookmark(path, path_type, bookmarks)
+  if not self.state.no_bookmark then
     return false
   end
   -- if bookmark is empty, we should see a empty filetree
@@ -143,10 +162,11 @@ local function bookmark(self, path, path_type, bookmarks)
   return true
 end
 
+---@private
 ---@param path string
 ---@return boolean
-local function custom(self, path)
+function Filters:custom(path)
-  if not self.config.filter_custom then
+  if not self.state.custom then
     return false
   end
 
@@ -176,19 +196,19 @@ local function custom(self, path)
 end
 
 ---Prepare arguments for should_filter. This is done prior to should_filter for efficiency reasons.
----@param git_status table|nil optional results of git.load_project_status(...)
+---@param project GitProject? optional results of git.load_projects(...)
 ---@return table
---- git_status: reference
+--- project: reference
 --- bufinfo: empty unless no_buffer set: vim.fn.getbufinfo { buflisted = 1 }
 --- bookmarks: absolute paths to boolean
-function Filters:prepare(git_status)
+function Filters:prepare(project)
   local status = {
-    git_status = git_status or {},
+    project = project or {},
     bufinfo = {},
     bookmarks = {},
   }
 
-  if self.config.filter_no_buffer then
+  if self.state.no_buffer then
     status.bufinfo = vim.fn.getbufinfo({ buflisted = 1 })
   end
 
@@ -208,20 +228,20 @@ end
 ---@param status table from prepare
 ---@return boolean
 function Filters:should_filter(path, fs_stat, status)
-  if not self.config.enable then
+  if not self.enabled then
     return false
   end
 
   -- exclusions override all filters
-  if is_excluded(self, path) then
+  if self:is_excluded(path) then
     return false
   end
 
-  return git(self, path, status.git_status)
+  return self:git(path, status.project)
-    or buf(self, path, status.bufinfo)
+    or self:buf(path, status.bufinfo)
-    or dotfile(self, path)
+    or self:dotfile(path)
-    or custom(self, path)
+    or self:custom(path)
-    or bookmark(self, path, fs_stat and fs_stat.type, status.bookmarks)
+    or self:bookmark(path, fs_stat and fs_stat.type, status.bookmarks)
 end
 
 --- Check if the given path should be filtered, and provide the reason why it was
@@ -230,27 +250,44 @@ end
 ---@param status table from prepare
 ---@return FILTER_REASON
 function Filters:should_filter_as_reason(path, fs_stat, status)
-  if not self.config.enable then
+  if not self.enabled then
     return FILTER_REASON.none
   end
 
-  if is_excluded(self, path) then
+  if self:is_excluded(path) then
     return FILTER_REASON.none
   end
 
-  if git(self, path, status.git_status) then
+  if self:git(path, status.project) then
     return FILTER_REASON.git
-  elseif buf(self, path, status.bufinfo) then
+  elseif self:buf(path, status.bufinfo) then
     return FILTER_REASON.buf
-  elseif dotfile(self, path) then
+  elseif self:dotfile(path) then
     return FILTER_REASON.dotfile
-  elseif custom(self, path) then
+  elseif self:custom(path) then
     return FILTER_REASON.custom
-  elseif bookmark(self, path, fs_stat and fs_stat.type, status.bookmarks) then
+  elseif self:bookmark(path, fs_stat and fs_stat.type, status.bookmarks) then
     return FILTER_REASON.bookmark
   else
     return FILTER_REASON.none
   end
 end
 
+---Toggle a type and refresh
+---@private
+---@param type FilterType? nil to disable all
+function Filters:toggle(type)
+  if not type or self.state[type] == nil then
+    self.enabled = not self.enabled
+  else
+    self.state[type] = not self.state[type]
+  end
+
+  local node = self.explorer:get_node_at_cursor()
+  self.explorer:reload_explorer()
+  if node then
+    utils.focus_node_or_parent(node)
+  end
+end
+
 return Filters

lua/nvim-tree/explorer/init.lua

@@ -1,99 +1,248 @@
-local builders = require("nvim-tree.explorer.node-builders")
+local appearance = require("nvim-tree.appearance")
+local buffers = require("nvim-tree.buffers")
+local core = require("nvim-tree.core")
 local git = require("nvim-tree.git")
 local log = require("nvim-tree.log")
-local notify = require("nvim-tree.notify")
 local utils = require("nvim-tree.utils")
-local view = require("nvim-tree.view")
+local node_factory = require("nvim-tree.node.factory")
-local watch = require("nvim-tree.explorer.watch")
+
-local explorer_node = require("nvim-tree.explorer.node")
+local DirectoryNode = require("nvim-tree.node.directory")
+local RootNode = require("nvim-tree.node.root")
+local Watcher = require("nvim-tree.watcher")
 
 local Iterator = require("nvim-tree.iterators.node-iterator")
 local NodeIterator = require("nvim-tree.iterators.node-iterator")
-local Watcher = require("nvim-tree.watcher")
 
 local Filters = require("nvim-tree.explorer.filters")
 local Marks = require("nvim-tree.marks")
 local LiveFilter = require("nvim-tree.explorer.live-filter")
-local Sorters = require("nvim-tree.explorer.sorters")
+local Sorter = require("nvim-tree.explorer.sorter")
 local Clipboard = require("nvim-tree.actions.fs.clipboard")
 local Renderer = require("nvim-tree.renderer")
+local View = require("nvim-tree.explorer.view")
 
 local FILTER_REASON = require("nvim-tree.enum").FILTER_REASON
 
 local config
 
----@class Explorer
+---@class (exact) Explorer: RootNode
+---@field uid_explorer number vim.loop.hrtime() at construction time
 ---@field opts table user options
----@field absolute_path string
+---@field augroup_id integer
----@field nodes Node[]
----@field open boolean
----@field watcher Watcher|nil
 ---@field renderer Renderer
 ---@field filters Filters
 ---@field live_filter LiveFilter
 ---@field sorters Sorter
 ---@field marks Marks
 ---@field clipboard Clipboard
-local Explorer = {}
+---@field view View
+local Explorer = RootNode:extend()
 
----@param path string|nil
+---@class Explorer
----@return Explorer|nil
+---@overload fun(args: ExplorerArgs): Explorer
-function Explorer:new(path)
-  local err
 
-  if path then
+---@class (exact) ExplorerArgs
-    path, err = vim.loop.fs_realpath(path)
+---@field path string
-  else
-    path, err = vim.loop.cwd()
-  end
-  if not path then
-    notify.error(err)
-    return
-  end
 
-  local o = {
+---@protected
-    opts = config,
+---@param args ExplorerArgs
-    absolute_path = path,
+function Explorer:new(args)
-    nodes = {},
+  Explorer.super.new(self, {
-    open = true,
+    explorer      = self,
-    sorters = Sorters:new(config),
+    absolute_path = args.path,
-  }
+    name          = "..",
+  })
 
-  setmetatable(o, self)
+  self.uid_explorer = vim.loop.hrtime()
-  self.__index = self
+  self.augroup_id   = vim.api.nvim_create_augroup("NvimTree_Explorer_" .. self.uid_explorer, {})
 
-  o.watcher = watch.create_watcher(o)
+  self:log_new("Explorer")
-  o.renderer = Renderer:new(config, o)
-  o.filters = Filters:new(config, o)
-  o.live_filter = LiveFilter:new(config, o)
-  o.marks = Marks:new(config, o)
-  o.clipboard = Clipboard:new(config, o)
 
-  o:_load(o)
+  self.open        = true
+  self.opts        = config
 
-  return o
+  self.sorters     = Sorter({ explorer = self })
+  self.renderer    = Renderer({ explorer = self })
+  self.filters     = Filters({ explorer = self })
+  self.live_filter = LiveFilter({ explorer = self })
+  self.marks       = Marks({ explorer = self })
+  self.clipboard   = Clipboard({ explorer = self })
+  self.view        = View({ explorer = self })
+
+  self:create_autocmds()
+
+  self:_load(self)
 end
 
----@param node Node
+function Explorer:destroy()
+  self.explorer:log_destroy("Explorer")
+
+  self.clipboard:destroy()
+  self.filters:destroy()
+  self.live_filter:destroy()
+  self.marks:destroy()
+  self.renderer:destroy()
+  self.sorters:destroy()
+  self.view:destroy()
+
+  vim.api.nvim_del_augroup_by_id(self.augroup_id)
+
+  RootNode.destroy(self)
+end
+
+function Explorer:create_autocmds()
+  -- reset and draw (highlights) when colorscheme is changed
+  vim.api.nvim_create_autocmd("ColorScheme", {
+    group = self.augroup_id,
+    callback = function()
+      appearance.setup()
+      self.view:reset_winhl()
+      self.renderer:draw()
+    end,
+  })
+
+  if self.opts.view.float.enable and self.opts.view.float.quit_on_focus_loss then
+    vim.api.nvim_create_autocmd("WinLeave", {
+      group = self.augroup_id,
+      pattern = "NvimTree_*",
+      callback = function(data)
+        if self.opts.experimental.multi_instance then
+          log.line("dev", "WinLeave %s", vim.inspect(data, { newline = "" }))
+        end
+        if utils.is_nvim_tree_buf(0) then
+          self.view:close(nil, "WinLeave")
+        end
+      end,
+    })
+  end
+
+  vim.api.nvim_create_autocmd("BufWritePost", {
+    group = self.augroup_id,
+    callback = function()
+      if self.opts.auto_reload_on_write and not self.opts.filesystem_watchers.enable then
+        self:reload_explorer()
+      end
+    end,
+  })
+
+  vim.api.nvim_create_autocmd("BufReadPost", {
+    group = self.augroup_id,
+    callback = function(data)
+      -- only handle normal files
+      if vim.bo[data.buf].buftype ~= "" then
+        return
+      end
+
+      if self.filters.state.no_buffer then
+        -- full reload is required to update the filter state
+        utils.debounce("Buf:filter_buffer_" .. self.uid_explorer, self.opts.view.debounce_delay, function()
+          self:reload_explorer()
+        end)
+      elseif self.opts.renderer.highlight_opened_files ~= "none" then
+        -- draw to update opened highlight
+        self.renderer:draw()
+      end
+    end,
+  })
+
+  -- update opened file buffers
+  vim.api.nvim_create_autocmd("BufUnload", {
+    group = self.augroup_id,
+    callback = function(data)
+      -- only handle normal files
+      if vim.bo[data.buf].buftype ~= "" then
+        return
+      end
+
+      if self.filters.state.no_buffer then
+        -- full reload is required to update the filter state
+        utils.debounce("Buf:filter_buffer_" .. self.uid_explorer, self.opts.view.debounce_delay, function()
+          self:reload_explorer()
+        end)
+      elseif self.opts.renderer.highlight_opened_files ~= "none" then
+        -- draw to update opened highlight; must be delayed as the buffer is still loaded during BufUnload
+        vim.schedule(function()
+          self.renderer:draw()
+        end)
+      end
+    end,
+  })
+
+  -- prevent new opened file from opening in the same window as nvim-tree
+  vim.api.nvim_create_autocmd("BufWipeout", {
+    group = self.augroup_id,
+    pattern = "NvimTree_*",
+    callback = function(data)
+      if self.opts.experimental.multi_instance then
+        log.line("dev", "BufWipeout %s", vim.inspect(data, { newline = "" }))
+      end
+      if not utils.is_nvim_tree_buf(0) then
+        return
+      end
+      if self.opts.actions.open_file.eject then
+        self.view:prevent_buffer_override()
+      else
+        self.view:abandon_current_window()
+      end
+    end,
+  })
+
+  vim.api.nvim_create_autocmd("BufEnter", {
+    group = self.augroup_id,
+    pattern = "NvimTree_*",
+    callback = function()
+      if utils.is_nvim_tree_buf(0) then
+        if vim.fn.getcwd() ~= core.get_cwd() or (self.opts.reload_on_bufenter and not self.opts.filesystem_watchers.enable) then
+          self:reload_explorer()
+        end
+      end
+    end,
+  })
+
+  vim.api.nvim_create_autocmd("User", {
+    group = self.augroup_id,
+    pattern = { "FugitiveChanged", "NeogitStatusRefreshed" },
+    callback = function()
+      if not self.opts.filesystem_watchers.enable and self.opts.git.enable then
+        self:reload_git()
+      end
+    end,
+  })
+
+  if self.opts.hijack_cursor then
+    vim.api.nvim_create_autocmd("CursorMoved", {
+      group = self.augroup_id,
+      pattern = "NvimTree_*",
+      callback = function()
+        if utils.is_nvim_tree_buf(0) then
+          self:place_cursor_on_node()
+        end
+      end,
+    })
+  end
+
+  if self.opts.modified.enable then
+    vim.api.nvim_create_autocmd({ "BufModifiedSet", "BufWritePost" }, {
+      group = self.augroup_id,
+      callback = function()
+        utils.debounce("Buf:modified_" .. self.uid_explorer, self.opts.view.debounce_delay, function()
+          buffers.reload_modified()
+          self:reload_explorer()
+        end)
+      end,
+    })
+  end
+end
+
+---@param node DirectoryNode
 function Explorer:expand(node)
   self:_load(node)
 end
 
-function Explorer:destroy()
+---@param node DirectoryNode
-  local function iterate(node)
+---@param project GitProject?
-    explorer_node.node_destroy(node)
+---@return Node[]?
-    if node.nodes then
+function Explorer:reload(node, project)
-      for _, child in pairs(node.nodes) do
-        iterate(child)
-      end
-    end
-  end
-  iterate(self)
-end
-
----@param node Node
----@param git_status table|nil
-function Explorer:reload(node, git_status)
   local cwd = node.link_to or node.absolute_path
   local handle = vim.loop.fs_scandir(cwd)
   if not handle then
@@ -102,7 +251,7 @@ function Explorer:reload(node, git_status)
 
   local profile = log.profile_start("reload %s", node.absolute_path)
 
-  local filter_status = self.filters:prepare(git_status)
+  local filter_status = self.filters:prepare(project)
 
   if node.group_next then
     node.nodes = { node.group_next }
@@ -111,16 +260,16 @@ function Explorer:reload(node, git_status)
 
   local remain_childs = {}
 
-  local node_ignored = explorer_node.is_git_ignored(node)
+  local node_ignored = node:is_git_ignored()
   ---@type table<string, Node>
   local nodes_by_path = utils.key_by(node.nodes, "absolute_path")
 
   -- To reset we must 'zero' everything that we use
   node.hidden_stats = vim.tbl_deep_extend("force", node.hidden_stats or {}, {
-    git = 0,
+    git      = 0,
-    buf = 0,
+    buf      = 0,
-    dotfile = 0,
+    dotfile  = 0,
-    custom = 0,
+    custom   = 0,
     bookmark = 0,
   })
 
@@ -131,39 +280,33 @@ function Explorer:reload(node, git_status)
     end
 
     local abs = utils.path_join({ cwd, name })
-    ---@type uv.fs_stat.result|nil
+
-    local stat = vim.loop.fs_lstat(abs)
+    -- path incorrectly specified as an integer
+    local stat = vim.loop.fs_lstat(abs) ---@diagnostic disable-line param-type-mismatch
 
     local filter_reason = self.filters:should_filter_as_reason(abs, stat, filter_status)
     if filter_reason == FILTER_REASON.none then
       remain_childs[abs] = true
 
-      -- Type must come from fs_stat and not fs_scandir_next to maintain sshfs compatibility
-      local t = stat and stat.type or nil
-
       -- Recreate node if type changes.
       if nodes_by_path[abs] then
         local n = nodes_by_path[abs]
 
-        if n.type ~= t then
+        if not stat or n.type ~= stat.type then
           utils.array_remove(node.nodes, n)
-          explorer_node.node_destroy(n)
+          n:destroy()
           nodes_by_path[abs] = nil
         end
       end
 
       if not nodes_by_path[abs] then
-        local new_child = nil
+        local new_child = node_factory.create({
-        if t == "directory" and vim.loop.fs_access(abs, "R") and Watcher.is_fs_event_capable(abs) then
+          explorer      = self,
-          new_child = builders.folder(node, abs, name, stat)
+          parent        = node,
-        elseif t == "file" then
+          absolute_path = abs,
-          new_child = builders.file(node, abs, name, stat)
+          name          = name,
-        elseif t == "link" then
+          fs_stat       = stat
-          local link = builders.link(node, abs, name, stat)
+        })
-          if link.link_to ~= nil then
-            new_child = link
-          end
-        end
         if new_child then
           table.insert(node.nodes, new_child)
           nodes_by_path[abs] = new_child
@@ -171,7 +314,7 @@ function Explorer:reload(node, git_status)
       else
         local n = nodes_by_path[abs]
         if n then
-          n.executable = builders.is_executable(abs) or false
+          n.executable = utils.is_executable(abs) or false
           n.fs_stat = stat
         end
       end
@@ -185,22 +328,21 @@ function Explorer:reload(node, git_status)
   end
 
   node.nodes = vim.tbl_map(
-    self:update_status(nodes_by_path, node_ignored, git_status),
+    self:update_git_statuses(nodes_by_path, node_ignored, project),
     vim.tbl_filter(function(n)
       if remain_childs[n.absolute_path] then
         return remain_childs[n.absolute_path]
       else
-        explorer_node.node_destroy(n)
+        n:destroy()
         return false
       end
     end, node.nodes)
   )
 
-  local is_root = not node.parent
+  local single_child = node:single_child_directory()
-  local child_folder_only = explorer_node.has_one_child_folder(node) and node.nodes[1]
+  if config.renderer.group_empty and node.parent and single_child then
-  if config.renderer.group_empty and not is_root and child_folder_only then
+    node.group_next = single_child
-    node.group_next = child_folder_only
+    local ns = self:reload(single_child, project)
-    local ns = self:reload(child_folder_only, git_status)
     node.nodes = ns or {}
     log.profile_end(profile)
     return ns
@@ -212,26 +354,6 @@ function Explorer:reload(node, git_status)
   return node.nodes
 end
 
----TODO #2837 #2871 move this and similar to node
----Refresh contents and git status for a single node
----@param node Node
----@param callback function
-function Explorer:refresh_node(node, callback)
-  if type(node) ~= "table" then
-    callback()
-  end
-
-  local parent_node = utils.get_parent_of_group(node)
-
-  self:reload_and_get_git_project(node.absolute_path, function(toplevel, project)
-    self:reload(parent_node, project)
-
-    self:update_parent_statuses(parent_node, project, toplevel)
-
-    callback()
-  end)
-end
-
 ---Refresh contents of all nodes to a path: actual directory and links.
 ---Groups will be expanded if needed.
 ---@param path string absolute path
@@ -259,97 +381,51 @@ function Explorer:refresh_parent_nodes_for_path(path)
     local project = git.get_project(toplevel) or {}
 
     self:reload(node, project)
-    self:update_parent_statuses(node, project, toplevel)
+    git.update_parent_projects(node, project, toplevel)
   end
 
   log.profile_end(profile)
 end
 
 ---@private
----@param node Node
+---@param node DirectoryNode
 function Explorer:_load(node)
   local cwd = node.link_to or node.absolute_path
-  local git_status = git.load_project_status(cwd)
+  local project = git.load_project(cwd)
-  self:explore(node, git_status, self)
+  self:explore(node, project, self)
 end
 
 ---@private
----@param nodes_by_path table
+---@param nodes_by_path Node[]
 ---@param node_ignored boolean
----@param status table|nil
+---@param project GitProject?
----@return fun(node: Node): table
+---@return fun(node: Node): Node
-function Explorer:update_status(nodes_by_path, node_ignored, status)
+function Explorer:update_git_statuses(nodes_by_path, node_ignored, project)
   return function(node)
     if nodes_by_path[node.absolute_path] then
-      explorer_node.update_git_status(node, node_ignored, status)
+      node:update_git_status(node_ignored, project)
     end
     return node
   end
 end
 
----TODO #2837 #2871 move this and similar to node
----@private
----@param path string
----@param callback fun(toplevel: string|nil, project: table|nil)
-function Explorer:reload_and_get_git_project(path, callback)
-  local toplevel = git.get_toplevel(path)
-
-  git.reload_project(toplevel, path, function()
-    callback(toplevel, git.get_project(toplevel) or {})
-  end)
-end
-
----TODO #2837 #2871 move this and similar to node
----@private
----@param node Node
----@param project table|nil
----@param root string|nil
-function Explorer:update_parent_statuses(node, project, root)
-  while project and node do
-    -- step up to the containing project
-    if node.absolute_path == root then
-      -- stop at the top of the tree
-      if not node.parent then
-        break
-      end
-
-      root = git.get_toplevel(node.parent.absolute_path)
-
-      -- stop when no more projects
-      if not root then
-        break
-      end
-
-      -- update the containing project
-      project = git.get_project(root)
-      git.reload_project(root, node.absolute_path, nil)
-    end
-
-    -- update status
-    explorer_node.update_git_status(node, explorer_node.is_git_ignored(node.parent), project)
-
-    -- maybe parent
-    node = node.parent
-  end
-end
-
 ---@private
 ---@param handle uv.uv_fs_t
 ---@param cwd string
----@param node Node
+---@param node DirectoryNode
----@param git_status table
+---@param project GitProject
 ---@param parent Explorer
-function Explorer:populate_children(handle, cwd, node, git_status, parent)
+function Explorer:populate_children(handle, cwd, node, project, parent)
-  local node_ignored = explorer_node.is_git_ignored(node)
+  local node_ignored = node:is_git_ignored()
   local nodes_by_path = utils.bool_record(node.nodes, "absolute_path")
 
-  local filter_status = parent.filters:prepare(git_status)
+  local filter_status = parent.filters:prepare(project)
 
   node.hidden_stats = vim.tbl_deep_extend("force", node.hidden_stats or {}, {
-    git = 0,
+    git      = 0,
-    buf = 0,
+    buf      = 0,
-    dotfile = 0,
+    dotfile  = 0,
-    custom = 0,
+    custom   = 0,
     bookmark = 0,
   })
 
@@ -364,31 +440,26 @@ function Explorer:populate_children(handle, cwd, node, git_status, parent)
     if Watcher.is_fs_event_capable(abs) then
       local profile = log.profile_start("populate_children %s", abs)
 
-      ---@type uv.fs_stat.result|nil
+      -- path incorrectly specified as an integer
-      local stat = vim.loop.fs_lstat(abs)
+      local stat = vim.loop.fs_lstat(abs) ---@diagnostic disable-line param-type-mismatch
+
       local filter_reason = parent.filters:should_filter_as_reason(abs, stat, filter_status)
       if filter_reason == FILTER_REASON.none and not nodes_by_path[abs] then
-        -- Type must come from fs_stat and not fs_scandir_next to maintain sshfs compatibility
+        local child = node_factory.create({
-        local t = stat and stat.type or nil
+          explorer      = self,
-        local child = nil
+          parent        = node,
-        if t == "directory" and vim.loop.fs_access(abs, "R") then
+          absolute_path = abs,
-          child = builders.folder(node, abs, name, stat)
+          name          = name,
-        elseif t == "file" then
+          fs_stat       = stat
-          child = builders.file(node, abs, name, stat)
+        })
-        elseif t == "link" then
-          local link = builders.link(node, abs, name, stat)
-          if link.link_to ~= nil then
-            child = link
-          end
-        end
         if child then
           table.insert(node.nodes, child)
           nodes_by_path[child.absolute_path] = true
-          explorer_node.update_git_status(child, node_ignored, git_status)
+          child:update_git_status(node_ignored, project)
         end
-      else
+      elseif node.hidden_stats then
         for reason, value in pairs(FILTER_REASON) do
-          if filter_reason == value then
+          if filter_reason == value and type(node.hidden_stats[reason]) == "number" then
             node.hidden_stats[reason] = node.hidden_stats[reason] + 1
           end
         end
@@ -400,11 +471,11 @@ function Explorer:populate_children(handle, cwd, node, git_status, parent)
 end
 
 ---@private
----@param node Node
+---@param node DirectoryNode
----@param status table
+---@param project GitProject
 ---@param parent Explorer
 ---@return Node[]|nil
-function Explorer:explore(node, status, parent)
+function Explorer:explore(node, project, parent)
   local cwd = node.link_to or node.absolute_path
   local handle = vim.loop.fs_scandir(cwd)
   if not handle then
@@ -413,15 +484,15 @@ function Explorer:explore(node, status, parent)
 
   local profile = log.profile_start("explore %s", node.absolute_path)
 
-  self:populate_children(handle, cwd, node, status, parent)
+  self:populate_children(handle, cwd, node, project, parent)
 
   local is_root = not node.parent
-  local child_folder_only = explorer_node.has_one_child_folder(node) and node.nodes[1]
+  local single_child = node:single_child_directory()
-  if config.renderer.group_empty and not is_root and child_folder_only then
+  if config.renderer.group_empty and not is_root and single_child then
-    local child_cwd = child_folder_only.link_to or child_folder_only.absolute_path
+    local child_cwd = single_child.link_to or single_child.absolute_path
-    local child_status = git.load_project_status(child_cwd)
+    local child_project = git.load_project(child_cwd)
-    node.group_next = child_folder_only
+    node.group_next = single_child
-    local ns = self:explore(child_folder_only, child_status, parent)
+    local ns = self:explore(single_child, child_project, parent)
     node.nodes = ns or {}
 
     log.profile_end(profile)
@@ -436,13 +507,14 @@ function Explorer:explore(node, status, parent)
 end
 
 ---@private
----@param projects table
+---@param projects GitProject[]
 function Explorer:refresh_nodes(projects)
   Iterator.builder({ self })
     :applier(function(n)
-      if n.nodes then
+      local dir = n:as(DirectoryNode)
-        local toplevel = git.get_toplevel(n.cwd or n.link_to or n.absolute_path)
+      if dir then
-        self:reload(n, projects[toplevel] or {})
+        local toplevel = git.get_toplevel(dir.cwd or dir.link_to or dir.absolute_path)
+        self:reload(dir, projects[toplevel] or {})
       end
     end)
     :recursor(function(n)
@@ -458,9 +530,9 @@ function Explorer:reload_explorer()
   end
   event_running = true
 
-  local projects = git.reload()
+  local projects = git.reload_all_projects()
   self:refresh_nodes(projects)
-  if view.is_visible() then
+  if self.view:is_visible(nil, "Explorer:reload_explorer") then
     self.renderer:draw()
   end
   event_running = false
@@ -472,16 +544,79 @@ function Explorer:reload_git()
   end
   event_running = true
 
-  local projects = git.reload()
+  local projects = git.reload_all_projects()
-  explorer_node.reload_node_status(self, projects)
+  git.reload_node_status(self, projects)
   self.renderer:draw()
   event_running = false
 end
 
-function Explorer.setup(opts)
+---Cursor position as per vim.api.nvim_win_get_cursor
+---nil on no explorer or invalid view win
+---@return integer[]|nil
+function Explorer:get_cursor_position()
+  local winnr = self.view:get_winid(nil, "Explorer:get_cursor_position")
+  if not winnr or not vim.api.nvim_win_is_valid(winnr) then
+    return
+  end
+
+  return vim.api.nvim_win_get_cursor(winnr)
+end
+
+---@return Node|nil
+function Explorer:get_node_at_cursor()
+  local cursor = self:get_cursor_position()
+  if not cursor then
+    return
+  end
+
+  if cursor[1] == 1 and self.view:is_root_folder_visible(core.get_cwd()) then
+    return self
+  end
+
+  return utils.get_nodes_by_line(self.nodes, core.get_nodes_starting_line())[cursor[1]]
+end
+
+function Explorer:place_cursor_on_node()
+  local ok, search = pcall(vim.fn.searchcount)
+  if ok and search and search.exact_match == 1 then
+    return
+  end
+
+  local node = self:get_node_at_cursor()
+  if not node or node.name == ".." then
+    return
+  end
+  node = node:get_parent_of_group() or node
+
+  local line = vim.api.nvim_get_current_line()
+  local cursor = vim.api.nvim_win_get_cursor(0)
+  local idx = vim.fn.stridx(line, node.name)
+
+  if idx >= 0 then
+    vim.api.nvim_win_set_cursor(0, { cursor[1], idx })
+  end
+end
+
+---Api.tree.get_nodes
+---@return nvim_tree.api.Node
+function Explorer:get_nodes()
+  return self:clone()
+end
+
+---Log a lifecycle message with uid_explorer and absolute_path
+---@param msg string?
+function Explorer:log_new(msg)
+  log.line("dev", "+ %-15s %d %s", msg, self.uid_explorer, self.absolute_path)
+end
+
+---Log a lifecycle message with uid_explorer and absolute_path
+---@param msg string?
+function Explorer:log_destroy(msg)
+  log.line("dev", "- %-15s %d %s", msg, self.uid_explorer, self.absolute_path)
+end
+
+function Explorer:setup(opts)
   config = opts
-  require("nvim-tree.explorer.node").setup(opts)
-  require("nvim-tree.explorer.watch").setup(opts)
 end
 
 return Explorer

lua/nvim-tree/explorer/live-filter.lua

@@ -1,29 +1,38 @@
-local view = require("nvim-tree.view")
 local utils = require("nvim-tree.utils")
-local Iterator = require("nvim-tree.iterators.node-iterator")
 
----@class LiveFilter
+local Class = require("nvim-tree.classic")
+local Iterator = require("nvim-tree.iterators.node-iterator")
+local DirectoryNode = require("nvim-tree.node.directory")
+
+---@class (exact) LiveFilter: Class
 ---@field explorer Explorer
 ---@field prefix string
 ---@field always_show_folders boolean
 ---@field filter string
-local LiveFilter = {}
+local LiveFilter = Class:extend()
 
----@param opts table
+---@class LiveFilter
----@param explorer Explorer
+---@overload fun(args: LiveFilterArgs): LiveFilter
-function LiveFilter:new(opts, explorer)
+
-  local o = {
+---@class (exact) LiveFilterArgs
-    explorer = explorer,
+---@field explorer Explorer
-    prefix = opts.live_filter.prefix,
+
-    always_show_folders = opts.live_filter.always_show_folders,
+---@protected
-    filter = nil,
+---@param args LiveFilterArgs
-  }
+function LiveFilter:new(args)
-  setmetatable(o, self)
+  args.explorer:log_new("LiveFilter")
-  self.__index = self
+
-  return o
+  self.explorer = args.explorer
+  self.prefix = self.explorer.opts.live_filter.prefix
+  self.always_show_folders = self.explorer.opts.live_filter.always_show_folders
+  self.filter = nil
 end
 
----@param node_ Node|nil
+function LiveFilter:destroy()
+  self.explorer:log_destroy("LiveFilter")
+end
+
+---@param node_ Node?
 local function reset_filter(self, node_)
   node_ = node_ or self.explorer
 
@@ -31,17 +40,19 @@ local function reset_filter(self, node_)
     return
   end
 
-  node_.hidden_stats = vim.tbl_deep_extend("force", node_.hidden_stats or {}, {
+  local dir_ = node_:as(DirectoryNode)
-    live_filter = 0,
+  if dir_ then
-  })
+    dir_.hidden_stats = vim.tbl_deep_extend("force", dir_.hidden_stats or {}, { live_filter = 0, })
+  end
 
   Iterator.builder(node_.nodes)
     :hidden()
     :applier(function(node)
       node.hidden = false
-      node.hidden_stats = vim.tbl_deep_extend("force", node.hidden_stats or {}, {
+      local dir = node:as(DirectoryNode)
-        live_filter = 0,
+      if dir then
-      })
+        dir.hidden_stats = vim.tbl_deep_extend("force", dir.hidden_stats or {}, { live_filter = 0, })
+      end
     end)
     :iterate()
 end
@@ -50,14 +61,14 @@ local overlay_bufnr = 0
 local overlay_winnr = 0
 
 local function remove_overlay(self)
-  if view.View.float.enable and view.View.float.quit_on_focus_loss then
+  if self.explorer.opts.view.float.enable and self.explorer.opts.view.float.quit_on_focus_loss then
     -- return to normal nvim-tree float behaviour when filter window is closed
     vim.api.nvim_create_autocmd("WinLeave", {
       pattern = "NvimTree_*",
       group = vim.api.nvim_create_augroup("NvimTree", { clear = false }),
       callback = function()
         if utils.is_nvim_tree_buf(0) then
-          view.close()
+          self.explorer.view:close()
         end
       end,
     })
@@ -76,7 +87,7 @@ end
 ---@param node Node
 ---@return boolean
 local function matches(self, node)
-  if not self.explorer.filters.config.enable then
+  if not self.explorer.filters.enabled then
     return true
   end
 
@@ -85,14 +96,14 @@ local function matches(self, node)
   return vim.regex(self.filter):match_str(name) ~= nil
 end
 
----@param node_ Node|nil
+---@param node_ DirectoryNode?
 function LiveFilter:apply_filter(node_)
   if not self.filter or self.filter == "" then
     reset_filter(self, node_)
     return
   end
 
-  -- TODO(kiyan): this iterator cannot yet be refactored with the Iterator module
+  -- this iterator cannot yet be refactored with the Iterator module
   -- since the node mapper is based on its children
   local function iterate(node)
     local filtered_nodes = 0
@@ -150,7 +161,7 @@ end
 
 ---@return integer
 local function calculate_overlay_win_width(self)
-  local wininfo = vim.fn.getwininfo(view.get_winnr())[1]
+  local wininfo = vim.fn.getwininfo(self.explorer.view:get_winnr())[1]
 
   if wininfo then
     return wininfo.width - wininfo.textoff - #self.prefix
@@ -160,24 +171,24 @@ local function calculate_overlay_win_width(self)
 end
 
 local function create_overlay(self)
-  if view.View.float.enable then
+  if self.explorer.opts.view.float.enable then
     -- don't close nvim-tree float when focus is changed to filter window
     vim.api.nvim_clear_autocmds({
-      event = "WinLeave",
+      event   = "WinLeave",
       pattern = "NvimTree_*",
-      group = vim.api.nvim_create_augroup("NvimTree", { clear = false }),
+      group   = vim.api.nvim_create_augroup("NvimTree", { clear = false }),
     })
   end
 
   configure_buffer_overlay(self)
   overlay_winnr = vim.api.nvim_open_win(overlay_bufnr, true, {
-    col = 1,
+    col      = 1,
-    row = 0,
+    row      = 0,
     relative = "cursor",
-    width = calculate_overlay_win_width(self),
+    width    = calculate_overlay_win_width(self),
-    height = 1,
+    height   = 1,
-    border = "none",
+    border   = "none",
-    style = "minimal",
+    style    = "minimal",
   })
 
   if vim.fn.has("nvim-0.10") == 1 then
@@ -192,13 +203,13 @@ local function create_overlay(self)
 end
 
 function LiveFilter:start_filtering()
-  view.View.live_filter.prev_focused_node = require("nvim-tree.lib").get_node_at_cursor()
+  self.explorer.view.live_filter.prev_focused_node = self.explorer:get_node_at_cursor()
   self.filter = self.filter or ""
 
   self.explorer.renderer:draw()
   local row = require("nvim-tree.core").get_nodes_starting_line() - 1
   local col = #self.prefix > 0 and #self.prefix - 1 or 1
-  view.set_cursor({ row, col })
+  self.explorer.view:set_cursor({ row, col })
   -- needs scheduling to let the cursor move before initializing the window
   vim.schedule(function()
     return create_overlay(self)
@@ -206,8 +217,8 @@ function LiveFilter:start_filtering()
 end
 
 function LiveFilter:clear_filter()
-  local node = require("nvim-tree.lib").get_node_at_cursor()
+  local node = self.explorer:get_node_at_cursor()
-  local last_node = view.View.live_filter.prev_focused_node
+  local last_node = self.explorer.view.live_filter.prev_focused_node
 
   self.filter = nil
   reset_filter(self)

lua/nvim-tree/explorer/node-builders.lua

@@ -1,107 +0,0 @@
-local utils = require("nvim-tree.utils")
-local watch = require("nvim-tree.explorer.watch")
-
-local M = {}
-
----@param parent Node
----@param absolute_path string
----@param name string
----@param fs_stat uv.fs_stat.result|nil
----@return Node
-function M.folder(parent, absolute_path, name, fs_stat)
-  local handle = vim.loop.fs_scandir(absolute_path)
-  local has_children = handle and vim.loop.fs_scandir_next(handle) ~= nil
-
-  local node = {
-    type = "directory",
-    absolute_path = absolute_path,
-    fs_stat = fs_stat,
-    group_next = nil, -- If node is grouped, this points to the next child dir/link node
-    has_children = has_children,
-    name = name,
-    nodes = {},
-    open = false,
-    parent = parent,
-  }
-
-  node.watcher = watch.create_watcher(node)
-
-  return node
-end
-
---- path is an executable file or directory
----@param absolute_path string
----@return boolean|nil
-function M.is_executable(absolute_path)
-  if utils.is_windows or utils.is_wsl then
-    --- executable detection on windows is buggy and not performant hence it is disabled
-    return false
-  else
-    return vim.loop.fs_access(absolute_path, "X")
-  end
-end
-
----@param parent Node
----@param absolute_path string
----@param name string
----@param fs_stat uv.fs_stat.result|nil
----@return Node
-function M.file(parent, absolute_path, name, fs_stat)
-  local ext = string.match(name, ".?[^.]+%.(.*)") or ""
-
-  return {
-    type = "file",
-    absolute_path = absolute_path,
-    executable = M.is_executable(absolute_path),
-    extension = ext,
-    fs_stat = fs_stat,
-    name = name,
-    parent = parent,
-  }
-end
-
--- TODO-INFO: sometimes fs_realpath returns nil
--- I expect this be a bug in glibc, because it fails to retrieve the path for some
--- links (for instance libr2.so in /usr/lib) and thus even with a C program realpath fails
--- when it has no real reason to. Maybe there is a reason, but errno is definitely wrong.
--- So we need to check for link_to ~= nil when adding new links to the main tree
----@param parent Node
----@param absolute_path string
----@param name string
----@param fs_stat uv.fs_stat.result|nil
----@return Node
-function M.link(parent, absolute_path, name, fs_stat)
-  --- I dont know if this is needed, because in my understanding, there isn't hard links in windows, but just to be sure i changed it.
-  local link_to = vim.loop.fs_realpath(absolute_path)
-  local open, nodes, has_children
-
-  local is_dir_link = (link_to ~= nil) and vim.loop.fs_stat(link_to).type == "directory"
-
-  if is_dir_link and link_to then
-    local handle = vim.loop.fs_scandir(link_to)
-    has_children = handle and vim.loop.fs_scandir_next(handle) ~= nil
-    open = false
-    nodes = {}
-  end
-
-  local node = {
-    type = "link",
-    absolute_path = absolute_path,
-    fs_stat = fs_stat,
-    group_next = nil, -- If node is grouped, this points to the next child dir/link node
-    has_children = has_children,
-    link_to = link_to,
-    name = name,
-    nodes = nodes,
-    open = open,
-    parent = parent,
-  }
-
-  if is_dir_link then
-    node.watcher = watch.create_watcher(node)
-  end
-
-  return node
-end
-
-return M

lua/nvim-tree/explorer/node.lua

@@ -1,183 +0,0 @@
-local git = {} -- circular dependencies
-
-local M = {}
-
----@class GitStatus
----@field file string|nil
----@field dir table|nil
-
----@param parent_ignored boolean
----@param status table|nil
----@param absolute_path string
----@return GitStatus|nil
-local function get_dir_git_status(parent_ignored, status, absolute_path)
-  if parent_ignored then
-    return { file = "!!" }
-  end
-
-  if status then
-    return {
-      file = status.files and status.files[absolute_path],
-      dir = status.dirs and {
-        direct = status.dirs.direct[absolute_path],
-        indirect = status.dirs.indirect[absolute_path],
-      },
-    }
-  end
-end
-
----@param parent_ignored boolean
----@param status table
----@param absolute_path string
----@return GitStatus
-local function get_git_status(parent_ignored, status, absolute_path)
-  local file_status = parent_ignored and "!!" or (status and status.files and status.files[absolute_path])
-  return { file = file_status }
-end
-
----@param node Node
----@return boolean
-function M.has_one_child_folder(node)
-  return #node.nodes == 1 and node.nodes[1].nodes and vim.loop.fs_access(node.nodes[1].absolute_path, "R") or false
-end
-
----@param node Node
----@param parent_ignored boolean
----@param status table|nil
-function M.update_git_status(node, parent_ignored, status)
-  local get_status
-  if node.nodes then
-    get_status = get_dir_git_status
-  else
-    get_status = get_git_status
-  end
-
-  -- status of the node's absolute path
-  node.git_status = get_status(parent_ignored, status, node.absolute_path)
-
-  -- status of the link target, if the link itself is not dirty
-  if node.link_to and not node.git_status then
-    node.git_status = get_status(parent_ignored, status, node.link_to)
-  end
-end
-
----@param node Node
----@return GitStatus|nil
-function M.get_git_status(node)
-  local git_status = node and node.git_status
-  if not git_status then
-    -- status doesn't exist
-    return nil
-  end
-
-  if not node.nodes then
-    -- file
-    return git_status.file and { git_status.file }
-  end
-
-  -- dir
-  if not M.config.git.show_on_dirs then
-    return nil
-  end
-
-  local status = {}
-  if not require("nvim-tree.lib").get_last_group_node(node).open or M.config.git.show_on_open_dirs then
-    -- dir is closed or we should show on open_dirs
-    if git_status.file ~= nil then
-      table.insert(status, git_status.file)
-    end
-    if git_status.dir ~= nil then
-      if git_status.dir.direct ~= nil then
-        for _, s in pairs(node.git_status.dir.direct) do
-          table.insert(status, s)
-        end
-      end
-      if git_status.dir.indirect ~= nil then
-        for _, s in pairs(node.git_status.dir.indirect) do
-          table.insert(status, s)
-        end
-      end
-    end
-  else
-    -- dir is open and we shouldn't show on open_dirs
-    if git_status.file ~= nil then
-      table.insert(status, git_status.file)
-    end
-    if git_status.dir ~= nil and git_status.dir.direct ~= nil then
-      local deleted = {
-        [" D"] = true,
-        ["D "] = true,
-        ["RD"] = true,
-        ["DD"] = true,
-      }
-      for _, s in pairs(node.git_status.dir.direct) do
-        if deleted[s] then
-          table.insert(status, s)
-        end
-      end
-    end
-  end
-  if #status == 0 then
-    return nil
-  else
-    return status
-  end
-end
-
----@param parent_node Node|nil
----@param projects table
-function M.reload_node_status(parent_node, projects)
-  if parent_node == nil then
-    return
-  end
-
-  local toplevel = git.get_toplevel(parent_node.absolute_path)
-  local status = projects[toplevel] or {}
-  for _, node in ipairs(parent_node.nodes) do
-    M.update_git_status(node, M.is_git_ignored(parent_node), status)
-    if node.nodes and #node.nodes > 0 then
-      M.reload_node_status(node, projects)
-    end
-  end
-end
-
----@param node Node
----@return boolean
-function M.is_git_ignored(node)
-  return node and node.git_status ~= nil and node.git_status.file == "!!"
-end
-
----@param node Node
----@return boolean
-function M.is_dotfile(node)
-  if node == nil then
-    return false
-  end
-  if node.is_dot or (node.name and (node.name:sub(1, 1) == ".")) or M.is_dotfile(node.parent) then
-    node.is_dot = true
-    return true
-  end
-  return false
-end
-
----@param node Node
-function M.node_destroy(node)
-  if not node then
-    return
-  end
-
-  if node.watcher then
-    node.watcher:destroy()
-    node.watcher = nil
-  end
-end
-
-function M.setup(opts)
-  M.config = {
-    git = opts.git,
-  }
-
-  git = require("nvim-tree.git")
-end
-
-return M

lua/nvim-tree/explorer/sorter.lua

@@ -1,27 +1,31 @@
-local C = {}
+local Class = require("nvim-tree.classic")
+local DirectoryNode = require("nvim-tree.node.directory")
+
+---@alias SorterType "name" | "case_sensitive" | "modification_time" | "extension" | "suffix" | "filetype"
+---@alias SorterComparator fun(self: Sorter, a: Node, b: Node): boolean?
+
+---@alias SorterUser fun(nodes: Node[]): SorterType?
+
+---@class (exact) Sorter: Class
+---@field private explorer Explorer
+local Sorter = Class:extend()
 
 ---@class Sorter
-local Sorter = {}
+---@overload fun(args: SorterArgs): Sorter
 
-function Sorter:new(opts)
+---@class (exact) SorterArgs
-  local o = {}
+---@field explorer Explorer
-  setmetatable(o, self)
-  self.__index = self
-  o.config = vim.deepcopy(opts.sort)
 
-  if type(o.config.sorter) == "function" then
+---@protected
-    o.user = o.config.sorter
+---@param args SorterArgs
-  end
+function Sorter:new(args)
-  return o
+  args.explorer:log_new("Sorter")
+
+  self.explorer = args.explorer
 end
 
---- Predefined comparator, defaulting to name
+function Sorter:destroy()
----@param sorter string as per options
+  self.explorer:log_destroy("Sorter")
----@return function
-function Sorter:get_comparator(sorter)
-  return function(a, b)
-    return (C[sorter] or C.name)(a, b, self.config)
-  end
 end
 
 ---Create a shallow copy of a portion of a list.
@@ -38,30 +42,32 @@ local function tbl_slice(t, first, last)
   return slice
 end
 
----Evaluate `sort.folders_first` and `sort.files_first`
+---Evaluate folders_first and sort.files_first returning nil when no order is necessary
----@param a Node
+---@private
----@param b Node
+---@type SorterComparator
----@return boolean|nil
+function Sorter:folders_or_files_first(a, b)
-local function folders_or_files_first(a, b, cfg)
+  if not (self.explorer.opts.sort.folders_first or self.explorer.opts.sort.files_first) then
-  if not (cfg.folders_first or cfg.files_first) then
+    return nil
-    return
   end
 
-  if not a.nodes and b.nodes then
+  if not a:is(DirectoryNode) and b:is(DirectoryNode) then
     -- file <> folder
-    return cfg.files_first
+    return self.explorer.opts.sort.files_first
-  elseif a.nodes and not b.nodes then
+  elseif a:is(DirectoryNode) and not b:is(DirectoryNode) then
     -- folder <> file
-    return not cfg.files_first
+    return not self.explorer.opts.sort.files_first
   end
+
+  return nil
 end
 
----@param t table
+---@private
+---@param t Node[]
 ---@param first number
 ---@param mid number
 ---@param last number
----@param comparator fun(a: Node, b: Node): boolean
+---@param comparator SorterComparator
-local function merge(t, first, mid, last, comparator)
+function Sorter:merge(t, first, mid, last, comparator)
   local n1 = mid - first + 1
   local n2 = last - mid
   local ls = tbl_slice(t, first, mid)
@@ -71,7 +77,7 @@ local function merge(t, first, mid, last, comparator)
   local k = first
 
   while i <= n1 and j <= n2 do
-    if comparator(ls[i], rs[j]) then
+    if comparator(self, ls[i], rs[j]) then
       t[k] = ls[i]
       i = i + 1
     else
@@ -94,45 +100,49 @@ local function merge(t, first, mid, last, comparator)
   end
 end
 
----@param t table
+---@private
+---@param t Node[]
 ---@param first number
 ---@param last number
----@param comparator fun(a: Node, b: Node): boolean
+---@param comparator SorterComparator
-local function split_merge(t, first, last, comparator)
+function Sorter:split_merge(t, first, last, comparator)
   if (last - first) < 1 then
     return
   end
 
   local mid = math.floor((first + last) / 2)
 
-  split_merge(t, first, mid, comparator)
+  self:split_merge(t, first,   mid,  comparator)
-  split_merge(t, mid + 1, last, comparator)
+  self:split_merge(t, mid + 1, last, comparator)
-  merge(t, first, mid, last, comparator)
+  self:merge(t, first, mid, last, comparator)
 end
 
 ---Perform a merge sort using sorter option.
----@param t table nodes
+---@param t Node[]
 function Sorter:sort(t)
-  if self.user then
+  if self[self.explorer.opts.sort.sorter] then
+    self:split_merge(t, 1, #t, self[self.explorer.opts.sort.sorter])
+  elseif type(self.explorer.opts.sort.sorter) == "function" then
     local t_user = {}
     local origin_index = {}
 
     for _, n in ipairs(t) do
       table.insert(t_user, {
         absolute_path = n.absolute_path,
-        executable = n.executable,
+        executable    = n.executable,
-        extension = n.extension,
+        extension     = n.extension,
-        filetype = vim.filetype.match({ filename = n.name }),
+        filetype      = vim.filetype.match({ filename = n.name }),
-        link_to = n.link_to,
+        link_to       = n.link_to,
-        name = n.name,
+        name          = n.name,
-        type = n.type,
+        type          = n.type,
       })
       table.insert(origin_index, n)
     end
 
-    local predefined = self.user(t_user)
+    -- user may return a SorterType
-    if predefined then
+    local ret = self.explorer.opts.sort.sorter(t_user)
-      split_merge(t, 1, #t, self:get_comparator(predefined))
+    if self[ret] then
+      self:split_merge(t, 1, #t, self[ret])
       return
     end
 
@@ -145,7 +155,7 @@ function Sorter:sort(t)
     end
 
     -- if missing value found, then using origin_index
-    local mini_comparator = function(a, b)
+    local mini_comparator = function(_, a, b)
       local a_index = user_index[a.absolute_path] or origin_index[a.absolute_path]
       local b_index = user_index[b.absolute_path] or origin_index[b.absolute_path]
 
@@ -155,47 +165,52 @@ function Sorter:sort(t)
       return (a_index or 0) <= (b_index or 0)
     end
 
-    split_merge(t, 1, #t, mini_comparator) -- sort by user order
+    self:split_merge(t, 1, #t, mini_comparator) -- sort by user order
-  else
-    split_merge(t, 1, #t, self:get_comparator(self.config.sorter))
   end
 end
 
+---@private
 ---@param a Node
 ---@param b Node
----@param ignorecase boolean|nil
+---@param ignore_case boolean
 ---@return boolean
-local function node_comparator_name_ignorecase_or_not(a, b, ignorecase, cfg)
+function Sorter:name_case(a, b, ignore_case)
   if not (a and b) then
     return true
   end
 
-  local early_return = folders_or_files_first(a, b, cfg)
+  local early_return = self:folders_or_files_first(a, b)
   if early_return ~= nil then
     return early_return
   end
 
-  if ignorecase then
+  if ignore_case then
     return a.name:lower() <= b.name:lower()
   else
     return a.name <= b.name
   end
 end
 
-function C.case_sensitive(a, b, cfg)
+---@private
-  return node_comparator_name_ignorecase_or_not(a, b, false, cfg)
+---@type SorterComparator
+function Sorter:case_sensitive(a, b)
+  return self:name_case(a, b, false)
 end
 
-function C.name(a, b, cfg)
+---@private
-  return node_comparator_name_ignorecase_or_not(a, b, true, cfg)
+---@type SorterComparator
+function Sorter:name(a, b)
+  return self:name_case(a, b, true)
 end
 
-function C.modification_time(a, b, cfg)
+---@private
+---@type SorterComparator
+function Sorter:modification_time(a, b)
   if not (a and b) then
     return true
   end
 
-  local early_return = folders_or_files_first(a, b, cfg)
+  local early_return = self:folders_or_files_first(a, b)
   if early_return ~= nil then
     return early_return
   end
@@ -214,17 +229,19 @@ function C.modification_time(a, b, cfg)
   return last_modified_b <= last_modified_a
 end
 
-function C.suffix(a, b, cfg)
+---@private
+---@type SorterComparator
+function Sorter:suffix(a, b)
   if not (a and b) then
     return true
   end
 
   -- directories go first
-  local early_return = folders_or_files_first(a, b, cfg)
+  local early_return = self:folders_or_files_first(a, b)
   if early_return ~= nil then
     return early_return
   elseif a.nodes and b.nodes then
-    return C.name(a, b, cfg)
+    return self:name(a, b)
   end
 
   -- dotfiles go second
@@ -233,7 +250,7 @@ function C.suffix(a, b, cfg)
   elseif a.name:sub(1, 1) ~= "." and b.name:sub(1, 1) == "." then
     return false
   elseif a.name:sub(1, 1) == "." and b.name:sub(1, 1) == "." then
-    return C.name(a, b, cfg)
+    return self:name(a, b)
   end
 
   -- unsuffixed go third
@@ -245,7 +262,7 @@ function C.suffix(a, b, cfg)
   elseif a_suffix_ndx and not b_suffix_ndx then
     return false
   elseif not (a_suffix_ndx and b_suffix_ndx) then
-    return C.name(a, b, cfg)
+    return self:name(a, b)
   end
 
   -- finally, compare by suffixes
@@ -257,18 +274,20 @@ function C.suffix(a, b, cfg)
   elseif not a_suffix and b_suffix then
     return false
   elseif a_suffix:lower() == b_suffix:lower() then
-    return C.name(a, b, cfg)
+    return self:name(a, b)
   end
 
   return a_suffix:lower() < b_suffix:lower()
 end
 
-function C.extension(a, b, cfg)
+---@private
+---@type SorterComparator
+function Sorter:extension(a, b)
   if not (a and b) then
     return true
   end
 
-  local early_return = folders_or_files_first(a, b, cfg)
+  local early_return = self:folders_or_files_first(a, b)
   if early_return ~= nil then
     return early_return
   end
@@ -282,18 +301,20 @@ function C.extension(a, b, cfg)
   local a_ext = (a.extension or ""):lower()
   local b_ext = (b.extension or ""):lower()
   if a_ext == b_ext then
-    return C.name(a, b, cfg)
+    return self:name(a, b)
   end
 
   return a_ext < b_ext
 end
 
-function C.filetype(a, b, cfg)
+---@private
+---@type SorterComparator
+function Sorter:filetype(a, b)
   local a_ft = vim.filetype.match({ filename = a.name })
   local b_ft = vim.filetype.match({ filename = b.name })
 
   -- directories first
-  local early_return = folders_or_files_first(a, b, cfg)
+  local early_return = self:folders_or_files_first(a, b)
   if early_return ~= nil then
     return early_return
   end
@@ -307,7 +328,7 @@ function C.filetype(a, b, cfg)
 
   -- same filetype or both nil, sort by name
   if a_ft == b_ft then
-    return C.name(a, b, cfg)
+    return self:name(a, b)
   end
 
   return a_ft < b_ft

lua/nvim-tree/explorer/view.lua

@@ -0,0 +1,811 @@
+local appearance = require("nvim-tree.appearance")
+local events = require("nvim-tree.events")
+local utils = require("nvim-tree.utils")
+local log = require("nvim-tree.log")
+local notify = require("nvim-tree.notify")
+local globals = require("nvim-tree.globals")
+
+local Class = require("nvim-tree.classic")
+
+---Window and buffer related settings and operations
+---@class (exact) View: Class
+---@field live_filter table
+---@field side string
+---@field private explorer Explorer
+---@field private adaptive_size boolean
+---@field private winopts table
+---@field private initial_width integer
+---@field private width (fun():integer)|integer|string
+---@field private max_width integer
+---@field private padding integer
+-- TODO multi-instance remove or replace with single member
+---@field private bufnr_by_tabid table<integer, integer>
+-- TODO multi-instance change to single member
+---@field private cursors_by_tabid table<integer, integer[]> as per vim.api.nvim_win_get_cursor
+local View = Class:extend()
+
+---@class View
+---@overload fun(args: ViewArgs): View
+
+---@class (exact) ViewArgs
+---@field explorer Explorer
+
+---@protected
+---@param args ViewArgs
+function View:new(args)
+  args.explorer:log_new("View")
+
+  self.explorer         = args.explorer
+  self.adaptive_size    = false
+  self.side             = (self.explorer.opts.view.side == "right") and "right" or "left"
+  self.live_filter      = { prev_focused_node = nil, }
+  self.bufnr_by_tabid   = {}
+  self.cursors_by_tabid = {}
+
+  self.winopts          = {
+    relativenumber = self.explorer.opts.view.relativenumber,
+    number         = self.explorer.opts.view.number,
+    list           = false,
+    foldenable     = false,
+    winfixwidth    = true,
+    winfixheight   = true,
+    spell          = false,
+    signcolumn     = self.explorer.opts.view.signcolumn,
+    foldmethod     = "manual",
+    foldcolumn     = "0",
+    cursorcolumn   = false,
+    cursorline     = self.explorer.opts.view.cursorline,
+    cursorlineopt  = self.explorer.opts.view.cursorlineopt,
+    colorcolumn    = "0",
+    wrap           = false,
+    winhl          = appearance.WIN_HL,
+  }
+
+  self:configure_width(self.explorer.opts.view.width)
+  self.initial_width = self:get_width()
+
+  -- TODO multi-instance remove this; delete buffers rather than retaining them
+  local tabid = vim.api.nvim_get_current_tabpage()
+  self.bufnr_by_tabid[tabid] = globals.BUFNR_BY_TABID[tabid]
+end
+
+function View:destroy()
+  self.explorer:log_destroy("View")
+end
+
+---@type { name: string, value: any }[]
+local BUFFER_OPTIONS = {
+  { name = "bufhidden",  value = "wipe" },
+  { name = "buflisted",  value = false },
+  { name = "buftype",    value = "nofile" },
+  { name = "filetype",   value = "NvimTree" },
+  { name = "modifiable", value = false },
+  { name = "swapfile",   value = false },
+}
+
+-- TODO multi-instance remove this; delete buffers rather than retaining them
+---@private
+---@param bufnr integer
+---@return boolean
+function View:matches_bufnr(bufnr)
+  for _, b in pairs(globals.BUFNR_BY_TABID) do
+    if b == bufnr then
+      return true
+    end
+  end
+  return false
+end
+
+-- TODO multi-instance remove this; delete buffers rather than retaining them
+---@private
+function View:wipe_rogue_buffer()
+  for _, bufnr in ipairs(vim.api.nvim_list_bufs()) do
+    if not self:matches_bufnr(bufnr) and utils.is_nvim_tree_buf(bufnr) then
+      pcall(vim.api.nvim_buf_delete, bufnr, { force = true })
+    end
+  end
+end
+
+---@private
+---@param bufnr integer|false|nil
+function View:create_buffer(bufnr)
+  self:wipe_rogue_buffer()
+
+  local tabid = vim.api.nvim_get_current_tabpage()
+
+  bufnr = bufnr or vim.api.nvim_create_buf(false, false)
+
+  -- set both bufnr registries
+  globals.BUFNR_BY_TABID[tabid] = bufnr
+  self.bufnr_by_tabid[tabid] = bufnr
+
+  vim.api.nvim_buf_set_name(bufnr, "NvimTree_" .. tabid)
+
+  for _, option in ipairs(BUFFER_OPTIONS) do
+    vim.api.nvim_set_option_value(option.name, option.value, { buf = bufnr })
+  end
+
+  require("nvim-tree.keymap").on_attach(bufnr)
+
+  events._dispatch_tree_attached_post(bufnr)
+end
+
+---@private
+---@param size (fun():integer)|integer|string
+---@return integer
+function View:get_size(size)
+  if type(size) == "number" then
+    return size
+  elseif type(size) == "function" then
+    return self:get_size(size())
+  end
+  local size_as_number = tonumber(size:sub(0, -2))
+  local percent_as_decimal = size_as_number / 100
+  return math.floor(vim.o.columns * percent_as_decimal)
+end
+
+---@param size (fun():integer)|integer|nil
+---@return integer
+function View:get_width(size)
+  if size then
+    return self:get_size(size)
+  else
+    return self:get_size(self.width)
+  end
+end
+
+local move_tbl = {
+  left = "H",
+  right = "L",
+}
+
+---@private
+function View:set_window_options_and_buffer()
+  pcall(vim.api.nvim_command, "buffer " .. self:get_bufnr("View:set_window_options_and_buffer"))
+
+  if vim.fn.has("nvim-0.10") == 1 then
+    local eventignore = vim.api.nvim_get_option_value("eventignore", {})
+    vim.api.nvim_set_option_value("eventignore", "all", {})
+
+    for k, v in pairs(self.winopts) do
+      vim.api.nvim_set_option_value(k, v, { scope = "local" })
+    end
+
+    vim.api.nvim_set_option_value("eventignore", eventignore, {})
+  else
+    local eventignore = vim.api.nvim_get_option("eventignore") ---@diagnostic disable-line: deprecated
+    vim.api.nvim_set_option("eventignore", "all") ---@diagnostic disable-line: deprecated
+
+    -- #3009 vim.api.nvim_win_set_option does not set local scope without explicit winid.
+    -- Revert to opt_local instead of propagating it through for just the 0.10 path.
+    for k, v in pairs(self.winopts) do
+      vim.opt_local[k] = v
+    end
+
+    vim.api.nvim_set_option("eventignore", eventignore) ---@diagnostic disable-line: deprecated
+  end
+end
+
+---@private
+---@return table
+function View:open_win_config()
+  if type(self.explorer.opts.view.float.open_win_config) == "function" then
+    return self.explorer.opts.view.float.open_win_config()
+  else
+    return self.explorer.opts.view.float.open_win_config
+  end
+end
+
+---@private
+function View:open_window()
+  if self.explorer.opts.view.float.enable then
+    vim.api.nvim_open_win(0, true, self:open_win_config())
+  else
+    vim.api.nvim_command("vsp")
+    self:reposition_window()
+  end
+  globals.WINID_BY_TABID[vim.api.nvim_get_current_tabpage()] = vim.api.nvim_get_current_win()
+  self:set_window_options_and_buffer()
+end
+
+---@param buf integer
+---@return boolean
+local function is_buf_displayed(buf)
+  return vim.api.nvim_buf_is_valid(buf) and vim.fn.buflisted(buf) == 1
+end
+
+---@return number|nil
+local function get_alt_or_next_buf()
+  local alt_buf = vim.fn.bufnr("#")
+  if is_buf_displayed(alt_buf) then
+    return alt_buf
+  end
+
+  for _, buf in ipairs(vim.api.nvim_list_bufs()) do
+    if is_buf_displayed(buf) then
+      return buf
+    end
+  end
+end
+
+local function switch_buf_if_last_buf()
+  if #vim.api.nvim_list_wins() == 1 then
+    local buf = get_alt_or_next_buf()
+    if buf then
+      vim.cmd("sb" .. buf)
+    else
+      vim.cmd("new")
+    end
+  end
+end
+
+---save any state that should be preserved on reopening
+---@private
+---@param tabid integer
+function View:save_state(tabid)
+  tabid = tabid or vim.api.nvim_get_current_tabpage()
+  self.cursors_by_tabid[tabid] = vim.api.nvim_win_get_cursor(self:get_winid(tabid, "View:save_tab_state") or 0)
+end
+
+---@private
+---@param tabid integer
+function View:close_internal(tabid)
+  --- BEGIN multi-instance FF
+  if self.explorer.opts.experimental.multi_instance then
+    log.line("dev", "View:close_internal(t%s)", tabid)
+  end
+  --- END multi-instance FF
+
+  if not self:is_visible({ tabpage = tabid }, "View:close_internal") then
+    return
+  end
+  self:save_state(tabid)
+  switch_buf_if_last_buf()
+  local tree_win = self:get_winid(tabid, "View:close_internal")
+  local current_win = vim.api.nvim_get_current_win()
+  for _, win in pairs(vim.api.nvim_tabpage_list_wins(tabid)) do
+    if vim.api.nvim_win_get_config(win).relative == "" then
+      local prev_win = vim.fn.winnr("#") -- this tab only
+      if tree_win == current_win and prev_win > 0 then
+        vim.api.nvim_set_current_win(vim.fn.win_getid(prev_win))
+      end
+      if vim.api.nvim_win_is_valid(tree_win or 0) then
+        --- BEGIN multi-instance FF
+        if self.explorer.opts.experimental.multi_instance then
+          log.line("dev", "View:close_internal(t%s) w%s", tabid, tree_win)
+        end
+        --- END multi-instance FF
+        ---
+        local success, error = pcall(vim.api.nvim_win_close, tree_win or 0, true)
+        if not success then
+          notify.debug("Failed to close window: " .. error)
+          return
+        end
+      end
+      return
+    end
+  end
+end
+
+function View:close_this_tab_only()
+  --- BEGIN multi-instance FF
+  if self.explorer.opts.experimental.multi_instance then
+    log.line("dev", "View:close_this_tab_only()")
+  end
+  --- END multi-instance FF
+
+  self:close_internal(vim.api.nvim_get_current_tabpage())
+end
+
+-- TODO this is broken at 1.13.0 - current tab does not close when tab.sync.close is set
+function View:close_all_tabs()
+  log.line("dev", "View:close_all_tabs() globals.WINID_BY_TABID=%s", vim.inspect(globals.WINID_BY_TABID))
+  for tabid, _ in pairs(globals.WINID_BY_TABID) do
+    --- BEGIN multi-instance FF
+    if self.explorer.opts.experimental.multi_instance then
+      log.line("dev", "View:close_all_tabs()")
+    end
+    --- END multi-instance FF
+
+    self:close_internal(tabid)
+  end
+end
+
+---@param tabid integer|nil
+---@param callsite string
+function View:close(tabid, callsite)
+  --- BEGIN multi-instance FF
+  if self.explorer.opts.experimental.multi_instance then
+    log.line("dev", "View:close(t%s, %s)", tabid, callsite)
+  end
+  --- END multi-instance FF
+
+  if self.explorer.opts.tab.sync.close then
+    self:close_all_tabs()
+  elseif tabid then
+    self:close_internal(tabid)
+  else
+    self:close_this_tab_only()
+  end
+end
+
+---@param options table|nil
+function View:open(options)
+  if self:is_visible(nil, "View:open") then
+    return
+  end
+
+  local profile = log.profile_start("view open")
+
+  events._dispatch_on_tree_pre_open()
+  self:create_buffer()
+  self:open_window()
+  self:resize()
+
+  local opts = options or { focus_tree = true }
+  if not opts.focus_tree then
+    vim.cmd("wincmd p")
+  end
+  events._dispatch_on_tree_open()
+
+  log.profile_end(profile)
+end
+
+---@private
+function View:grow()
+  local starts_at = self:is_root_folder_visible(require("nvim-tree.core").get_cwd()) and 1 or 0
+  local lines = vim.api.nvim_buf_get_lines(self:get_bufnr("View:grow1"), starts_at, -1, false)
+  -- number of columns of right-padding to indicate end of path
+  local padding = self:get_size(self.padding)
+
+  -- account for sign/number columns etc.
+  local wininfo = vim.fn.getwininfo(self:get_winid(nil, "View:grow"))
+  if type(wininfo) == "table" and type(wininfo[1]) == "table" then
+    padding = padding + wininfo[1].textoff
+  end
+
+  local resizing_width = self.initial_width - padding
+  local max_width
+
+  -- maybe bound max
+  if self.max_width == -1 then
+    max_width = -1
+  else
+    max_width = self:get_width(self.max_width) - padding
+  end
+
+  local ns_id = vim.api.nvim_get_namespaces()["NvimTreeExtmarks"]
+  for line_nr, l in pairs(lines) do
+    local count = vim.fn.strchars(l)
+    -- also add space for right-aligned icons
+    local extmarks = vim.api.nvim_buf_get_extmarks(self:get_bufnr("View:grow2"), ns_id, { line_nr, 0 }, { line_nr, -1 }, { details = true })
+    count = count + utils.extmarks_length(extmarks)
+    if resizing_width < count then
+      resizing_width = count
+    end
+    if self.adaptive_size and max_width >= 0 and resizing_width >= max_width then
+      resizing_width = max_width
+      break
+    end
+  end
+  self:resize(resizing_width + padding)
+end
+
+function View:grow_from_content()
+  if self.adaptive_size then
+    self:grow()
+  end
+end
+
+---@param size string|number|nil
+function View:resize(size)
+  if self.explorer.opts.view.float.enable and not self.adaptive_size then
+    -- if the floating windows's adaptive size is not desired, then the
+    -- float size should be defined in self.explorer.opts.view.float.open_win_config
+    return
+  end
+
+  if type(size) == "string" then
+    size = vim.trim(size)
+    local first_char = size:sub(1, 1)
+    size = tonumber(size)
+
+    if first_char == "+" or first_char == "-" then
+      size = self.width + size
+    end
+  end
+
+  if type(size) == "number" and size <= 0 then
+    return
+  end
+
+  if size then
+    self.width = size
+  end
+
+  if not self:is_visible(nil, "View:resize") then
+    return
+  end
+
+  local winid = self:get_winid(nil, "View:resize") or 0
+
+  local new_size = self:get_width()
+
+  if new_size ~= vim.api.nvim_win_get_width(winid) then
+    vim.api.nvim_win_set_width(winid, new_size)
+    if not self.explorer.opts.view.preserve_window_proportions then
+      vim.cmd(":wincmd =")
+    end
+  end
+
+  events._dispatch_on_tree_resize(new_size)
+end
+
+---@private
+function View:reposition_window()
+  local move_to = move_tbl[self.side]
+  vim.api.nvim_command("wincmd " .. move_to)
+  self:resize()
+end
+
+---@private
+function View:set_current_win()
+  local current_tab = vim.api.nvim_get_current_tabpage()
+  globals.WINID_BY_TABID[current_tab] = vim.api.nvim_get_current_win()
+end
+
+---@class OpenInWinOpts
+---@field hijack_current_buf boolean|nil default true
+---@field resize boolean|nil default true
+---@field winid number|nil 0 or nil for current
+
+---Open the tree in the a window
+---@param opts OpenInWinOpts|nil
+function View:open_in_win(opts)
+  opts = opts or { hijack_current_buf = true, resize = true }
+  events._dispatch_on_tree_pre_open()
+  if opts.winid and vim.api.nvim_win_is_valid(opts.winid) then
+    vim.api.nvim_set_current_win(opts.winid)
+  end
+  self:create_buffer(opts.hijack_current_buf and vim.api.nvim_get_current_buf())
+  globals.WINID_BY_TABID[vim.api.nvim_get_current_tabpage()] = vim.api.nvim_get_current_win()
+  self:set_current_win()
+  self:set_window_options_and_buffer()
+  if opts.resize then
+    self:reposition_window()
+    self:resize()
+  end
+  events._dispatch_on_tree_open()
+end
+
+function View:abandon_current_window()
+  local tab = vim.api.nvim_get_current_tabpage()
+
+  --- BEGIN multi-instance FF
+  if self.explorer.opts.experimental.multi_instance then
+    log.line("dev", "View:abandon_current_window() t%d w%s b%s member b%s %s",
+      tab,
+      globals.WINID_BY_TABID[tab],
+      globals.BUFNR_BY_TABID[tab],
+      self.bufnr_by_tabid[tab],
+      (globals.BUFNR_BY_TABID[tab] == self.bufnr_by_tabid[tab]) and "" or "MISMATCH")
+  end
+  --- END multi-instance FF
+
+  -- reset both bufnr registries
+  globals.BUFNR_BY_TABID[tab] = nil
+  self.bufnr_by_tabid[tab] = nil
+
+  globals.WINID_BY_TABID[tab] = nil
+end
+
+function View:abandon_all_windows()
+  for tab, _ in pairs(vim.api.nvim_list_tabpages()) do
+    globals.BUFNR_BY_TABID[tab] = nil
+    globals.WINID_BY_TABID[tab] = nil
+  end
+end
+
+---@param opts table|nil
+---@param callsite string
+---@return boolean
+function View:is_visible(opts, callsite)
+  local msg
+
+  --- BEGIN multi-instance FF
+  if self.explorer.opts.experimental.multi_instance then
+    msg = string.format("View:is_visible(%s, %-20.20s)", vim.inspect(opts, { newline = "" }), callsite)
+  end
+  --- END multi-instance FF
+
+  if opts and opts.tabpage then
+    --- BEGIN multi-instance FF
+    if self.explorer.opts.experimental.multi_instance then
+      local winid = self:winid(opts.tabpage)
+      local winid_by_tabid = opts.tabpage and globals.WINID_BY_TABID[opts.tabpage] or nil
+      msg = string.format("%s globals.WINID_BY_TABID[%s]=w%s view.winid(%s)=w%s",
+        msg,
+        opts.tabpage, winid_by_tabid,
+        opts.tabpage, winid
+      )
+      if winid ~= winid_by_tabid then
+        msg = string.format("%s MISMATCH", msg)
+        notify.error(msg)
+      end
+      log.line("dev", "%s", msg)
+
+      return winid and vim.api.nvim_win_is_valid(winid) or false
+      --- END multi-instance FF
+    else
+      local winid = globals.WINID_BY_TABID[opts.tabpage]
+      return winid and vim.api.nvim_win_is_valid(winid)
+    end
+  end
+
+  if opts and opts.any_tabpage then
+    for tabid, winid_by_tabid in pairs(globals.WINID_BY_TABID) do
+      --- BEGIN multi-instance FF
+      if self.explorer.opts.experimental.multi_instance then
+        local winid = self:winid(tabid)
+        msg = string.format("%s globals.WINID_BY_TABID[%s]=w%s view.winid(%s)=w%s",
+          msg,
+          tabid, winid_by_tabid,
+          tabid, winid
+        )
+        if winid ~= winid_by_tabid then
+          msg = string.format("%s MISMATCH", msg)
+          notify.error(msg)
+        end
+        log.line("dev", "%s", msg)
+
+        if winid and vim.api.nvim_win_is_valid(winid) then
+          return true
+        end
+        --- END multi-instance FF
+      else
+        if winid_by_tabid and vim.api.nvim_win_is_valid(winid_by_tabid) then
+          return true
+        end
+      end
+    end
+    return false
+  end
+
+  local winid = self:get_winid(nil, "View:is_visible")
+  return winid ~= nil and vim.api.nvim_win_is_valid(winid or 0)
+end
+
+---@param opts table|nil
+function View:set_cursor(opts)
+  if self:is_visible(nil, "View:set_cursor") then
+    pcall(vim.api.nvim_win_set_cursor, self:get_winid(nil, "View:set_cursor"), opts)
+  end
+end
+
+---@param winid number|nil
+---@param open_if_closed boolean|nil
+function View:focus(winid, open_if_closed)
+  local wid = winid or self:get_winid(nil, "View:focus1")
+
+  if vim.api.nvim_win_get_tabpage(wid or 0) ~= vim.api.nvim_win_get_tabpage(0) then
+    self:close(nil, "View:focus")
+    self:open()
+    wid = self:get_winid(nil, "View:focus2")
+  elseif open_if_closed and not self:is_visible(nil, "View:focus") then
+    self:open()
+  end
+
+  if wid then
+    vim.api.nvim_set_current_win(wid)
+  end
+end
+
+--- Retrieve the winid of the open tree.
+---@param opts ApiTreeWinIdOpts|nil
+---@return number|nil winid unlike get_winid(), this returns nil if the nvim-tree window is not visible
+function View:api_winid(opts)
+  local tabpage = opts and opts.tabpage
+  if tabpage == 0 then
+    tabpage = vim.api.nvim_get_current_tabpage()
+  end
+  if self:is_visible({ tabpage = tabpage }, "View:api_winid") then
+    return self:get_winid(tabpage, "View:winid")
+  else
+    return nil
+  end
+end
+
+---restore any state from last close
+function View:restore_state()
+  self:set_cursor(self.cursors_by_tabid[vim.api.nvim_get_current_tabpage()])
+end
+
+--- winid containing the buffer
+---@param tabid number|nil (optional) the number of the chosen tabpage. Defaults to current tabpage.
+---@return integer? winid
+function View:winid(tabid)
+  local bufnr = self.bufnr_by_tabid[tabid]
+
+  if bufnr then
+    for _, winid in pairs(vim.api.nvim_tabpage_list_wins(tabid or 0)) do
+      if vim.api.nvim_win_get_buf(winid) == bufnr then
+        return winid
+      end
+    end
+  end
+end
+
+--- Returns the window number for nvim-tree within the tabpage specified
+---@param tabid number|nil (optional) the number of the chosen tabpage. Defaults to current tabpage.
+---@param callsite string
+---@return number|nil
+function View:get_winid(tabid, callsite)
+  local tabid_param = tabid
+  tabid = tabid or vim.api.nvim_get_current_tabpage()
+  local global_winid = nil
+
+  --- BEGIN multi-instance FF
+  if self.explorer.opts.experimental.multi_instance then
+    local msg_fault = ""
+    if not globals.WINID_BY_TABID[tabid] then
+      msg_fault = "no WINID_BY_TABID"
+    elseif not vim.api.nvim_win_is_valid(globals.WINID_BY_TABID[tabid]) then
+      msg_fault = string.format("invalid globals.WINID_BY_TABID[tabid] %d", globals.WINID_BY_TABID[tabid])
+    else
+      global_winid = globals.WINID_BY_TABID[tabid]
+    end
+
+    local winid = self:winid(tabid)
+
+    if winid ~= global_winid then
+      msg_fault = "MISMATCH"
+    end
+
+    local msg = string.format("View:get_winid(%3s, %-20.20s) globals.WINID_BY_TABID[%s]=w%s view.winid(%s)=w%s %s",
+      tabid_param,
+      callsite,
+      tabid, global_winid,
+      tabid, winid,
+      msg_fault
+    )
+
+    log.line("dev", "%s", msg)
+
+    if winid ~= global_winid then
+      notify.error(msg)
+    end
+
+    return winid
+  end
+  --- END multi-instance FF
+
+  -- legacy codepath
+  if global_winid and vim.api.nvim_win_is_valid(global_winid) then
+    return global_winid
+  end
+end
+
+--- Returns the current nvim tree bufnr
+---@param callsite string
+---@return number
+function View:get_bufnr(callsite)
+  local tab = vim.api.nvim_get_current_tabpage()
+
+  --- BEGIN multi-instance FF
+  if self.explorer.opts.experimental.multi_instance then
+    local msg = string.format("View:get_bufnr(%-20.20s) globals.BUFNR_BY_TABID[%s]=b%s view.bufnr_by_tab[%s]=b%s %s",
+      callsite,
+      tab, globals.BUFNR_BY_TABID[tab],
+      tab, self.bufnr_by_tabid[tab],
+      (globals.BUFNR_BY_TABID[tab] == self.bufnr_by_tabid[tab]) and "" or "MISMATCH"
+    )
+
+    if globals.BUFNR_BY_TABID[tab] ~= self.bufnr_by_tabid[tab] then
+      notify.error(msg)
+    end
+
+    log.line("dev", msg)
+
+    return self.bufnr_by_tabid[tab]
+  end
+  --- END multi-instance FF
+
+  return globals.BUFNR_BY_TABID[tab]
+end
+
+function View:prevent_buffer_override()
+  local view_winid = self:get_winid(nil, "View:prevent_buffer_override")
+  local view_bufnr = self:get_bufnr("View:prevent_buffer_override")
+
+  -- need to schedule to let the new buffer populate the window
+  -- because this event needs to be run on bufWipeout.
+  -- Otherwise the curwin/curbuf would match the view buffer and the view window.
+  vim.schedule(function()
+    local curwin = vim.api.nvim_get_current_win()
+    local curwinconfig = vim.api.nvim_win_get_config(curwin)
+    local curbuf = vim.api.nvim_win_get_buf(curwin)
+    local bufname = vim.api.nvim_buf_get_name(curbuf)
+
+    if not bufname:match("NvimTree") then
+      for i, winid in ipairs(globals.WINID_BY_TABID) do
+        if winid == view_winid then
+          globals.WINID_BY_TABID[i] = nil
+          break
+        end
+      end
+    end
+    if curwin ~= view_winid or bufname == "" or curbuf == view_bufnr then
+      return
+    end
+
+    -- patch to avoid the overriding window to be fixed in size
+    -- might need a better patch
+    vim.cmd("setlocal nowinfixwidth")
+    vim.cmd("setlocal nowinfixheight")
+    self:open({ focus_tree = false })
+
+    local explorer = require("nvim-tree.core").get_explorer()
+    if explorer then
+      explorer.renderer:draw()
+    end
+
+    pcall(vim.api.nvim_win_close, curwin, { force = true })
+
+    -- to handle opening a file using :e when nvim-tree is on floating mode
+    -- falling back to the current window instead of creating a new one
+    if curwinconfig.relative ~= "" then
+      require("nvim-tree.actions.node.open-file").fn("edit_in_place", bufname)
+    else
+      require("nvim-tree.actions.node.open-file").fn("edit", bufname)
+    end
+  end)
+end
+
+---@param cwd string|nil
+---@return boolean
+function View:is_root_folder_visible(cwd)
+  return cwd ~= "/" and self.explorer.opts.renderer.root_folder_label ~= false
+end
+
+-- used on ColorScheme event
+function View:reset_winhl()
+  local winid = self:get_winid(nil, "View:reset_winhl")
+  if winid and vim.api.nvim_win_is_valid(winid) then
+    vim.wo[winid].winhl = appearance.WIN_HL
+  end
+end
+
+---Check if width determined or calculated on-fly
+---@return boolean
+function View:is_width_determined()
+  return type(self.width) ~= "function"
+end
+
+-- These are needed as they are populated only by the user, not configuration
+local DEFAULT_MIN_WIDTH = 30
+local DEFAULT_MAX_WIDTH = -1
+local DEFAULT_PADDING = 1
+
+---Configure width-related config
+---@param width string|function|number|table|nil
+function View:configure_width(width)
+  if type(width) == "table" then
+    self.adaptive_size = true
+    self.width = width.min or DEFAULT_MIN_WIDTH
+    self.max_width = width.max or DEFAULT_MAX_WIDTH
+    self.padding = width.padding or DEFAULT_PADDING
+  elseif width == nil then
+    if self.explorer.opts.view.width ~= nil then
+      -- if we had input config - fallback to it
+      self:configure_width(self.explorer.opts.view.width)
+    else
+      -- otherwise - restore initial width
+      self.width = self.initial_width
+    end
+  else
+    self.adaptive_size = false
+    self.width = width
+  end
+end
+
+return View

lua/nvim-tree/explorer/watch.lua

@@ -1,4 +1,5 @@
 local log = require("nvim-tree.log")
+local git = require("nvim-tree.git")
 local utils = require("nvim-tree.utils")
 local Watcher = require("nvim-tree.watcher").Watcher
 
@@ -53,7 +54,7 @@ local function is_folder_ignored(path)
   return false
 end
 
----@param node Node
+---@param node DirectoryNode
 ---@return Watcher|nil
 function M.create_watcher(node)
   if not M.config.filesystem_watchers.enable or type(node) ~= "table" then
@@ -65,9 +66,10 @@ function M.create_watcher(node)
     return nil
   end
 
+  ---@param watcher Watcher
   local function callback(watcher)
-    log.line("watcher", "node event scheduled refresh %s", watcher.context)
+    log.line("watcher", "node event scheduled refresh %s", watcher.data.context)
-    utils.debounce(watcher.context, M.config.filesystem_watchers.debounce_delay, function()
+    utils.debounce(watcher.data.context, M.config.filesystem_watchers.debounce_delay, function()
       if watcher.destroyed then
         return
       end
@@ -76,18 +78,17 @@ function M.create_watcher(node)
       else
         log.line("watcher", "node event executing refresh '%s'", node.absolute_path)
       end
-      local explorer = require("nvim-tree.core").get_explorer()
+      git.refresh_dir(node)
-      if explorer then
-        explorer:refresh_node(node, function()
-          explorer.renderer:draw()
-        end)
-      end
     end)
   end
 
   M.uid = M.uid + 1
-  return Watcher:new(path, nil, callback, {
+  return Watcher:create({
-    context = "explorer:watch:" .. path .. ":" .. M.uid,
+    path = path,
+    callback = callback,
+    data = {
+      context = "explorer:watch:" .. path .. ":" .. M.uid
+    }
   })
 end
 

lua/nvim-tree/git/init.lua

@@ -1,21 +1,48 @@
 local log = require("nvim-tree.log")
 local utils = require("nvim-tree.utils")
 local git_utils = require("nvim-tree.git.utils")
-local Runner = require("nvim-tree.git.runner")
+
+local GitRunner = require("nvim-tree.git.runner")
 local Watcher = require("nvim-tree.watcher").Watcher
 local Iterator = require("nvim-tree.iterators.node-iterator")
-local explorer_node = require("nvim-tree.explorer.node")
+local DirectoryNode = require("nvim-tree.node.directory")
+
+---Git short format status xy
+---@alias GitXY string
+
+-- Git short-format status
+---@alias GitPathXY table<string, GitXY>
+
+-- Git short-format statuses
+---@alias GitPathXYs table<string, GitXY[]>
+
+---Git short-format statuses for a single node
+---@class (exact) GitNodeStatus
+---@field file GitXY?
+---@field dir table<"direct" | "indirect", GitXY[]>?
+
+---Git state for an entire repo
+---@class (exact) GitProject
+---@field files GitProjectFiles?
+---@field dirs GitProjectDirs?
+---@field watcher Watcher?
+
+---@alias GitProjectFiles GitPathXY
+---@alias GitProjectDirs table<"direct" | "indirect", GitPathXYs>
 
 local M = {
   config = {},
 
-  -- all projects keyed by toplevel
+  ---all projects keyed by toplevel
+  ---@type table<string, GitProject>
   _projects_by_toplevel = {},
 
-  -- index of paths inside toplevels, false when not inside a project
+  ---index of paths inside toplevels, false when not inside a project
+  ---@type table<string, string|false>
   _toplevels_by_path = {},
 
   -- git dirs by toplevel
+  ---@type table<string, string>
   _git_dirs_by_toplevel = {},
 }
 
@@ -31,35 +58,35 @@ local WATCHED_FILES = {
 
 ---@param toplevel string|nil
 ---@param path string|nil
----@param project table
+---@param project GitProject
----@param git_status table|nil
+---@param project_files GitProjectFiles?
-local function reload_git_status(toplevel, path, project, git_status)
+local function reload_git_project(toplevel, path, project, project_files)
   if path then
     for p in pairs(project.files) do
       if p:find(path, 1, true) == 1 then
         project.files[p] = nil
       end
     end
-    project.files = vim.tbl_deep_extend("force", project.files, git_status)
+    project.files = vim.tbl_deep_extend("force", project.files, project_files)
   else
-    project.files = git_status
+    project.files = project_files or {}
   end
 
-  project.dirs = git_utils.file_status_to_dir_status(project.files, toplevel)
+  project.dirs = git_utils.project_files_to_project_dirs(project.files, toplevel)
 end
 
 --- Is this path in a known ignored directory?
 ---@param path string
----@param project table git status
+---@param project GitProject
 ---@return boolean
 local function path_ignored_in_project(path, project)
   if not path or not project then
     return false
   end
 
-  if project and project.files then
+  if project.files then
-    for file, status in pairs(project.files) do
+    for p, xy in pairs(project.files) do
-      if status == "!!" and vim.startswith(path, file) then
+      if xy == "!!" and vim.startswith(path, p) then
         return true
       end
     end
@@ -67,9 +94,8 @@ local function path_ignored_in_project(path, project)
   return false
 end
 
---- Reload all projects
+---@return GitProject[] maybe empty
----@return table projects maybe empty
+function M.reload_all_projects()
-function M.reload()
   if not M.config.git.enable then
     return {}
   end
@@ -82,11 +108,12 @@ function M.reload()
 end
 
 --- Reload one project. Does nothing when no project or path is ignored
----@param toplevel string|nil
+---@param toplevel string?
----@param path string|nil optional path to update only
+---@param path string? optional path to update only
----@param callback function|nil
+---@param callback function?
 function M.reload_project(toplevel, path, callback)
-  local project = M._projects_by_toplevel[toplevel]
+  local project = M._projects_by_toplevel[toplevel] --[[@as GitProject]]
+
   if not toplevel or not project or not M.config.git.enable then
     if callback then
       callback()
@@ -101,29 +128,31 @@ function M.reload_project(toplevel, path, callback)
     return
   end
 
-  local opts = {
+  ---@type GitRunnerArgs
-    toplevel = toplevel,
+  local args = {
-    path = path,
+    toplevel       = toplevel,
+    path           = path,
     list_untracked = git_utils.should_show_untracked(toplevel),
-    list_ignored = true,
+    list_ignored   = true,
-    timeout = M.config.git.timeout,
+    timeout        = M.config.git.timeout,
   }
 
   if callback then
-    Runner.run(opts, function(git_status)
+    ---@param path_xy GitPathXY
-      reload_git_status(toplevel, path, project, git_status)
+    args.callback = function(path_xy)
+      reload_git_project(toplevel, path, project, path_xy)
       callback()
-    end)
+    end
+    GitRunner:run(args)
   else
-    -- TODO use callback once async/await is available
+    -- TODO #1974 use callback once async/await is available
-    local git_status = Runner.run(opts)
+    reload_git_project(toplevel, path, project, GitRunner:run(args))
-    reload_git_status(toplevel, path, project, git_status)
   end
 end
 
 --- Retrieve a known project
----@param toplevel string|nil
+---@param toplevel string?
----@return table|nil project
+---@return GitProject? project
 function M.get_project(toplevel)
   return M._projects_by_toplevel[toplevel]
 end
@@ -144,11 +173,10 @@ function M.get_toplevel(path)
     return nil
   end
 
-  if M._toplevels_by_path[path] then
+  local tl = M._toplevels_by_path[path]
-    return M._toplevels_by_path[path]
+  if tl then
-  end
+    return tl
-
+  elseif tl == false then
-  if M._toplevels_by_path[path] == false then
     return nil
   end
 
@@ -187,8 +215,15 @@ function M.get_toplevel(path)
   end
 
   M._toplevels_by_path[path] = toplevel
+
   M._git_dirs_by_toplevel[toplevel] = git_dir
-  return M._toplevels_by_path[path]
+
+  toplevel = M._toplevels_by_path[path]
+  if toplevel == false then
+    return nil
+  else
+    return toplevel
+  end
 end
 
 local function reload_tree_at(toplevel)
@@ -203,31 +238,28 @@ local function reload_tree_at(toplevel)
   end
 
   M.reload_project(toplevel, nil, function()
-    local git_status = M.get_project(toplevel)
+    local project = M.get_project(toplevel)
 
     Iterator.builder(root_node.nodes)
       :hidden()
       :applier(function(node)
-        local parent_ignored = explorer_node.is_git_ignored(node.parent)
+        local parent_ignored = node.parent and node.parent:is_git_ignored() or false
-        explorer_node.update_git_status(node, parent_ignored, git_status)
+        node:update_git_status(parent_ignored, project)
       end)
       :recursor(function(node)
         return node.nodes and #node.nodes > 0 and node.nodes
       end)
       :iterate()
 
-    local explorer = require("nvim-tree.core").get_explorer()
+    root_node.explorer.renderer:draw()
-    if explorer then
-      explorer.renderer:draw()
-    end
   end)
 end
 
 --- Load the project status for a path. Does nothing when no toplevel for path.
 --- Only fetches project status when unknown, otherwise returns existing.
 ---@param path string absolute
----@return table project maybe empty
+---@return GitProject maybe empty
-function M.load_project_status(path)
+function M.load_project(path)
   if not M.config.git.enable then
     return {}
   end
@@ -238,42 +270,48 @@ function M.load_project_status(path)
     return {}
   end
 
-  local status = M._projects_by_toplevel[toplevel]
+  local project = M._projects_by_toplevel[toplevel]
-  if status then
+  if project then
-    return status
+    return project
   end
 
-  local git_status = Runner.run({
+  local path_xys = GitRunner:run({
-    toplevel = toplevel,
+    toplevel       = toplevel,
     list_untracked = git_utils.should_show_untracked(toplevel),
-    list_ignored = true,
+    list_ignored   = true,
-    timeout = M.config.git.timeout,
+    timeout        = M.config.git.timeout,
   })
 
   local watcher = nil
   if M.config.filesystem_watchers.enable then
     log.line("watcher", "git start")
 
+    ---@param w Watcher
     local callback = function(w)
-      log.line("watcher", "git event scheduled '%s'", w.toplevel)
+      log.line("watcher", "git event scheduled '%s'", w.data.toplevel)
-      utils.debounce("git:watcher:" .. w.toplevel, M.config.filesystem_watchers.debounce_delay, function()
+      utils.debounce("git:watcher:" .. w.data.toplevel, M.config.filesystem_watchers.debounce_delay, function()
         if w.destroyed then
           return
         end
-        reload_tree_at(w.toplevel)
+        reload_tree_at(w.data.toplevel)
       end)
     end
 
     local git_dir = vim.env.GIT_DIR or M._git_dirs_by_toplevel[toplevel] or utils.path_join({ toplevel, ".git" })
-    watcher = Watcher:new(git_dir, WATCHED_FILES, callback, {
+    watcher = Watcher:create({
-      toplevel = toplevel,
+      path     = git_dir,
+      files    = WATCHED_FILES,
+      callback = callback,
+      data     = {
+        toplevel = toplevel,
+      }
     })
   end
 
-  if git_status then
+  if path_xys then
     M._projects_by_toplevel[toplevel] = {
-      files = git_status,
+      files   = path_xys,
-      dirs = git_utils.file_status_to_dir_status(git_status, toplevel),
+      dirs    = git_utils.project_files_to_project_dirs(path_xys, toplevel),
       watcher = watcher,
     }
     return M._projects_by_toplevel[toplevel]
@@ -283,6 +321,71 @@ function M.load_project_status(path)
   end
 end
 
+---@param dir DirectoryNode
+---@param project GitProject?
+---@param root string?
+function M.update_parent_projects(dir, project, root)
+  while project and dir do
+    -- step up to the containing project
+    if dir.absolute_path == root then
+      -- stop at the top of the tree
+      if not dir.parent then
+        break
+      end
+
+      root = M.get_toplevel(dir.parent.absolute_path)
+
+      -- stop when no more projects
+      if not root then
+        break
+      end
+
+      -- update the containing project
+      project = M.get_project(root)
+      M.reload_project(root, dir.absolute_path, nil)
+    end
+
+    -- update status
+    dir:update_git_status(dir.parent and dir.parent:is_git_ignored() or false, project)
+
+    -- maybe parent
+    dir = dir.parent
+  end
+end
+
+---Refresh contents and git status for a single directory
+---@param dir DirectoryNode
+function M.refresh_dir(dir)
+  local node = dir:get_parent_of_group() or dir
+  local toplevel = M.get_toplevel(dir.absolute_path)
+
+  M.reload_project(toplevel, dir.absolute_path, function()
+    local project = M.get_project(toplevel) or {}
+
+    dir.explorer:reload(node, project)
+
+    M.update_parent_projects(dir, project, toplevel)
+
+    dir.explorer.renderer:draw()
+  end)
+end
+
+---@param dir DirectoryNode?
+---@param projects GitProject[]
+function M.reload_node_status(dir, projects)
+  dir = dir and dir:as(DirectoryNode)
+  if not dir or #dir.nodes == 0 then
+    return
+  end
+
+  local toplevel = M.get_toplevel(dir.absolute_path)
+  local project = projects[toplevel] or {}
+  for _, node in ipairs(dir.nodes) do
+    node:update_git_status(dir:is_git_ignored(), project)
+    M.reload_node_status(node:as(DirectoryNode), projects)
+  end
+end
+
 function M.purge_state()
   log.line("git", "purge_state")
 

lua/nvim-tree/git/runner.lua

@@ -2,17 +2,51 @@ local log = require("nvim-tree.log")
 local utils = require("nvim-tree.utils")
 local notify = require("nvim-tree.notify")
 
----@class Runner
+local Class = require("nvim-tree.classic")
-local Runner = {}
+
-Runner.__index = Runner
+---@class (exact) GitRunner: Class
+---@field private toplevel string absolute path
+---@field private path string? absolute path
+---@field private list_untracked boolean
+---@field private list_ignored boolean
+---@field private timeout integer
+---@field private callback fun(path_xy: GitPathXY)?
+---@field private path_xy GitPathXY
+---@field private rc integer? -- -1 indicates timeout
+local GitRunner = Class:extend()
+
+---@class GitRunner
+---@overload fun(args: GitRunnerArgs): GitRunner
+
+---@class (exact) GitRunnerArgs
+---@field toplevel string absolute path
+---@field path string? absolute path
+---@field list_untracked boolean
+---@field list_ignored boolean
+---@field timeout integer
+---@field callback fun(path_xy: GitPathXY)?
 
 local timeouts = 0
 local MAX_TIMEOUTS = 5
 
+---@protected
+---@param args GitRunnerArgs
+function GitRunner:new(args)
+  self.toplevel       = args.toplevel
+  self.path           = args.path
+  self.list_untracked = args.list_untracked
+  self.list_ignored   = args.list_ignored
+  self.timeout        = args.timeout
+  self.callback       = args.callback
+
+  self.path_xy        = {}
+  self.rc             = nil
+end
+
 ---@private
 ---@param status string
 ---@param path string|nil
-function Runner:_parse_status_output(status, path)
+function GitRunner:parse_status_output(status, path)
   if not path then
     return
   end
@@ -22,7 +56,7 @@ function Runner:_parse_status_output(status, path)
     path = path:gsub("/", "\\")
   end
   if #status > 0 and #path > 0 then
-    self.output[utils.path_remove_trailing(utils.path_join({ self.toplevel, path }))] = status
+    self.path_xy[utils.path_remove_trailing(utils.path_join({ self.toplevel, path }))] = status
   end
 end
 
@@ -30,7 +64,7 @@ end
 ---@param prev_output string
 ---@param incoming string
 ---@return string
-function Runner:_handle_incoming_data(prev_output, incoming)
+function GitRunner:handle_incoming_data(prev_output, incoming)
   if incoming and utils.str_find(incoming, "\n") then
     local prev = prev_output .. incoming
     local i = 1
@@ -45,7 +79,7 @@ function Runner:_handle_incoming_data(prev_output, incoming)
           -- skip next line if it is a rename entry
           skip_next_line = true
         end
-        self:_parse_status_output(status, path)
+        self:parse_status_output(status, path)
       end
       i = i + #line
     end
@@ -58,35 +92,38 @@ function Runner:_handle_incoming_data(prev_output, incoming)
   end
 
   for line in prev_output:gmatch("[^\n]*\n") do
-    self:_parse_status_output(line)
+    self:parse_status_output(line)
   end
 
   return ""
 end
 
+---@private
 ---@param stdout_handle uv.uv_pipe_t
 ---@param stderr_handle uv.uv_pipe_t
----@return table
+---@return uv.spawn.options
-function Runner:_getopts(stdout_handle, stderr_handle)
+function GitRunner:get_spawn_options(stdout_handle, stderr_handle)
   local untracked = self.list_untracked and "-u" or nil
   local ignored = (self.list_untracked and self.list_ignored) and "--ignored=matching" or "--ignored=no"
   return {
-    args = { "--no-optional-locks", "status", "--porcelain=v1", "-z", ignored, untracked, self.path },
+    args  = { "--no-optional-locks", "status", "--porcelain=v1", "-z", ignored, untracked, self.path },
-    cwd = self.toplevel,
+    cwd   = self.toplevel,
     stdio = { nil, stdout_handle, stderr_handle },
   }
 end
 
+---@private
 ---@param output string
-function Runner:_log_raw_output(output)
+function GitRunner:log_raw_output(output)
   if log.enabled("git") and output and type(output) == "string" then
     log.raw("git", "%s", output)
     log.line("git", "done")
   end
 end
 
+---@private
 ---@param callback function|nil
-function Runner:_run_git_job(callback)
+function GitRunner:run_git_job(callback)
   local handle, pid
   local stdout = vim.loop.new_pipe(false)
   local stderr = vim.loop.new_pipe(false)
@@ -123,13 +160,13 @@ function Runner:_run_git_job(callback)
     end
   end
 
-  local opts = self:_getopts(stdout, stderr)
+  local spawn_options = self:get_spawn_options(stdout, stderr)
   log.line("git", "running job with timeout %dms", self.timeout)
-  log.line("git", "git %s", table.concat(utils.array_remove_nils(opts.args), " "))
+  log.line("git", "git %s",                        table.concat(utils.array_remove_nils(spawn_options.args), " "))
 
   handle, pid = vim.loop.spawn(
     "git",
-    opts,
+    spawn_options,
     vim.schedule_wrap(function(rc)
       on_finish(rc)
     end)
@@ -151,19 +188,20 @@ function Runner:_run_git_job(callback)
     if data then
       data = data:gsub("%z", "\n")
     end
-    self:_log_raw_output(data)
+    self:log_raw_output(data)
-    output_leftover = self:_handle_incoming_data(output_leftover, data)
+    output_leftover = self:handle_incoming_data(output_leftover, data)
   end
 
   local function manage_stderr(_, data)
-    self:_log_raw_output(data)
+    self:log_raw_output(data)
   end
 
   vim.loop.read_start(stdout, vim.schedule_wrap(manage_stdout))
   vim.loop.read_start(stderr, vim.schedule_wrap(manage_stderr))
 end
 
-function Runner:_wait()
+---@private
+function GitRunner:wait()
   local function is_done()
     return self.rc ~= nil
   end
@@ -172,64 +210,64 @@ function Runner:_wait()
   end
 end
 
----@param opts table
+---@private
-function Runner:_finalise(opts)
+function GitRunner:finalise()
   if self.rc == -1 then
-    log.line("git", "job timed out  %s %s", opts.toplevel, opts.path)
+    log.line("git", "job timed out  %s %s", self.toplevel, self.path)
     timeouts = timeouts + 1
     if timeouts == MAX_TIMEOUTS then
-      notify.warn(string.format("%d git jobs have timed out after git.timeout %dms, disabling git integration.", timeouts, opts.timeout))
+      notify.warn(string.format("%d git jobs have timed out after git.timeout %dms, disabling git integration.", timeouts,
+        self.timeout))
       require("nvim-tree.git").disable_git_integration()
     end
   elseif self.rc ~= 0 then
-    log.line("git", "job fail rc %d %s %s", self.rc, opts.toplevel, opts.path)
+    log.line("git", "job fail rc %d %s %s", self.rc, self.toplevel, self.path)
   else
-    log.line("git", "job success    %s %s", opts.toplevel, opts.path)
+    log.line("git", "job success    %s %s", self.toplevel, self.path)
   end
 end
 
---- Runs a git process, which will be killed if it takes more than timeout which defaults to 400ms
+---Return nil when callback present
----@param opts table
+---@private
----@param callback function|nil executed passing return when complete
+---@return GitPathXY?
----@return table|nil status by absolute path, nil if callback present
+function GitRunner:execute()
-function Runner.run(opts, callback)
+  local async = self.callback ~= nil
-  local self = setmetatable({
+  local profile = log.profile_start("git %s job %s %s", async and "async" or "sync", self.toplevel, self.path)
-    toplevel = opts.toplevel,
-    path = opts.path,
-    list_untracked = opts.list_untracked,
-    list_ignored = opts.list_ignored,
-    timeout = opts.timeout or 400,
-    output = {},
-    rc = nil, -- -1 indicates timeout
-  }, Runner)
 
-  local async = callback ~= nil
+  if async and self.callback then
-  local profile = log.profile_start("git %s job %s %s", async and "async" or "sync", opts.toplevel, opts.path)
-
-  if async and callback then
     -- async, always call back
-    self:_run_git_job(function()
+    self:run_git_job(function()
       log.profile_end(profile)
 
-      self:_finalise(opts)
+      self:finalise()
 
-      callback(self.output)
+      self.callback(self.path_xy)
     end)
   else
     -- sync, maybe call back
-    self:_run_git_job()
+    self:run_git_job()
-    self:_wait()
+    self:wait()
 
     log.profile_end(profile)
 
-    self:_finalise(opts)
+    self:finalise()
 
-    if callback then
+    if self.callback then
-      callback(self.output)
+      self.callback(self.path_xy)
     else
-      return self.output
+      return self.path_xy
     end
   end
 end
 
-return Runner
+---Static method to run a git process, which will be killed if it takes more than timeout
+---Return nil when callback present
+---@param args GitRunnerArgs
+---@return GitPathXY?
+function GitRunner:run(args)
+  local runner = GitRunner(args)
+
+  return runner:execute()
+end
+
+return GitRunner

lua/nvim-tree/git/utils.lua

@@ -58,10 +58,11 @@ function M.get_toplevel(cwd)
   return toplevel, git_dir
 end
 
+---@type table<string, boolean>
 local untracked = {}
 
 ---@param cwd string
----@return string|nil
+---@return boolean
 function M.should_show_untracked(cwd)
   if untracked[cwd] ~= nil then
     return untracked[cwd]
@@ -81,8 +82,8 @@ function M.should_show_untracked(cwd)
   return untracked[cwd]
 end
 
----@param t table|nil
+---@param t table<string|integer, boolean>?
----@param k string
+---@param k string|integer
 ---@return table
 local function nil_insert(t, k)
   t = t or {}
@@ -90,31 +91,33 @@ local function nil_insert(t, k)
   return t
 end
 
----@param status table
+---@param project_files GitProjectFiles
 ---@param cwd string|nil
----@return table
+---@return GitProjectDirs
-function M.file_status_to_dir_status(status, cwd)
+function M.project_files_to_project_dirs(project_files, cwd)
-  local direct = {}
+  ---@type GitProjectDirs
-  for p, s in pairs(status) do
+  local project_dirs = {}
+
+  project_dirs.direct = {}
+  for p, s in pairs(project_files) do
     if s ~= "!!" then
       local modified = vim.fn.fnamemodify(p, ":h")
-      direct[modified] = nil_insert(direct[modified], s)
+      project_dirs.direct[modified] = nil_insert(project_dirs.direct[modified], s)
     end
   end
 
-  local indirect = {}
+  project_dirs.indirect = {}
-  for dirname, statuses in pairs(direct) do
+  for dirname, statuses in pairs(project_dirs.direct) do
     for s, _ in pairs(statuses) do
       local modified = dirname
       while modified ~= cwd and modified ~= "/" do
         modified = vim.fn.fnamemodify(modified, ":h")
-        indirect[modified] = nil_insert(indirect[modified], s)
+        project_dirs.indirect[modified] = nil_insert(project_dirs.indirect[modified], s)
       end
     end
   end
 
-  local r = { indirect = indirect, direct = direct }
+  for _, d in pairs(project_dirs) do
-  for _, d in pairs(r) do
     for dirname, statuses in pairs(d) do
       local new_statuses = {}
       for s, _ in pairs(statuses) do
@@ -123,7 +126,60 @@ function M.file_status_to_dir_status(status, cwd)
       d[dirname] = new_statuses
     end
   end
-  return r
+
+  return project_dirs
+end
+
+---Git file status for an absolute path
+---@param parent_ignored boolean
+---@param project GitProject?
+---@param path string
+---@param path_fallback string? alternative file path when no other file status
+---@return GitNodeStatus
+function M.git_status_file(parent_ignored, project, path, path_fallback)
+  ---@type GitNodeStatus
+  local ns
+
+  if parent_ignored then
+    ns = {
+      file = "!!"
+    }
+  elseif project and project.files then
+    ns = {
+      file = project.files[path] or project.files[path_fallback]
+    }
+  else
+    ns = {}
+  end
+
+  return ns
+end
+
+---Git file and directory status for an absolute path
+---@param parent_ignored boolean
+---@param project GitProject?
+---@param path string
+---@param path_fallback string? alternative file path when no other file status
+---@return GitNodeStatus?
+function M.git_status_dir(parent_ignored, project, path, path_fallback)
+  ---@type GitNodeStatus?
+  local ns
+
+  if parent_ignored then
+    ns = {
+      file = "!!"
+    }
+  elseif project then
+    ns = {
+      file = project.files and (project.files[path] or project.files[path_fallback]),
+      dir  = project.dirs and {
+        direct   = project.dirs.direct and project.dirs.direct[path],
+        indirect = project.dirs.indirect and project.dirs.indirect[path],
+      },
+    }
+  end
+
+  return ns
 end
 
 function M.setup(opts)

lua/nvim-tree/globals.lua

@@ -0,0 +1,10 @@
+-- global state, to be refactored away during multi-instance
+
+local M = {
+  -- from View
+  WINID_BY_TABID = {},
+  BUFNR_BY_TABID = {},
+  CURSORS = {},
+}
+
+return M

lua/nvim-tree/help.lua

@@ -1,3 +1,4 @@
+local appearance = require("nvim-tree.appearance")
 local keymap = require("nvim-tree.keymap")
 local api = {} -- circular dependency
 
@@ -5,11 +6,7 @@ local PAT_MOUSE = "^<.*Mouse"
 local PAT_CTRL = "^<C%-"
 local PAT_SPECIAL = "^<.+"
 
-local WIN_HL = table.concat({
+local namespace_help_id = vim.api.nvim_create_namespace("NvimTreeHelp")
-  "NormalFloat:NvimTreeNormalFloat",
-  "WinSeparator:NvimTreeWinSeparator",
-  "CursorLine:NvimTreeCursorLine",
-}, ",")
 
 local M = {
   config = {},
@@ -53,6 +50,7 @@ end
 --- sort vim command lhs roughly as per :help index
 ---@param a string
 ---@param b string
+---@return boolean
 local function sort_lhs(a, b)
   -- mouse first
   if a:match(PAT_MOUSE) and not b:match(PAT_MOUSE) then
@@ -81,8 +79,8 @@ end
 
 --- Compute all lines for the buffer
 ---@param map table keymap.get_keymap
----@return table strings of text
+---@return string[] lines of text
----@return table arrays of arguments 3-6 for nvim_buf_add_highlight()
+---@return HighlightRangeArgs[] hl_range_args for lines
 ---@return number maximum length of text
 local function compute(map)
   local head_lhs = "nvim-tree mappings"
@@ -129,10 +127,10 @@ local function compute(map)
   local width = #lines[1]
 
   -- header highlight, assume one character keys
-  local hl = {
+  local hl_range_args = {
-    { "NvimTreeFolderName", 0, 0,         #head_lhs },
+    { higroup = "NvimTreeFolderName", start = { 0, 0, },         finish = { 0, #head_lhs, }, },
-    { "NvimTreeFolderName", 0, width - 1, width },
+    { higroup = "NvimTreeFolderName", start = { 0, width - 1, }, finish = { 0, width, }, },
-    { "NvimTreeFolderName", 1, width - 1, width },
+    { higroup = "NvimTreeFolderName", start = { 1, width - 1, }, finish = { 1, width, }, },
   }
 
   -- mappings, left padded 1
@@ -144,10 +142,10 @@ local function compute(map)
     width = math.max(#line, width)
 
     -- highlight lhs
-    table.insert(hl, { "NvimTreeFolderName", i + 1, 1, #l.lhs + 1 })
+    table.insert(hl_range_args, { higroup = "NvimTreeFolderName", start = { i + 1, 1, }, finish = { i + 1, #l.lhs + 1, }, })
   end
 
-  return lines, hl, width
+  return lines, hl_range_args, width
 end
 
 --- close the window and delete the buffer, if they exist
@@ -171,7 +169,7 @@ local function open()
   local map = keymap.get_keymap()
 
   -- text and highlight
-  local lines, hl, width = compute(map)
+  local lines, hl_range_args, width = compute(map)
 
   -- create the buffer
   M.bufnr = vim.api.nvim_create_buf(false, true)
@@ -186,8 +184,12 @@ local function open()
   end
 
   -- highlight it
-  for _, h in ipairs(hl) do
+  for _, args in ipairs(hl_range_args) do
-    vim.api.nvim_buf_add_highlight(M.bufnr, -1, h[1], h[2], h[3], h[4])
+    if vim.fn.has("nvim-0.11") == 1 and vim.hl and vim.hl.range then
+      vim.hl.range(M.bufnr, namespace_help_id, args.higroup, args.start, args.finish, {})
+    else
+      vim.api.nvim_buf_add_highlight(M.bufnr, -1, args.higroup, args.start[1], args.start[2], args.finish[2]) ---@diagnostic disable-line: deprecated
+    end
   end
 
   -- open a very restricted window
@@ -203,7 +205,7 @@ local function open()
   })
 
   -- style it a bit like the tree
-  vim.wo[M.winnr].winhl = WIN_HL
+  vim.wo[M.winnr].winhl = appearance.WIN_HL_HELP
   vim.wo[M.winnr].cursorline = M.config.cursorline
 
   local function toggle_sort()

lua/nvim-tree/iterators/node-iterator.lua

@@ -48,7 +48,7 @@ function NodeIterator:recursor(f)
 end
 
 ---@return Node|nil
----@return number|nil
+---@return number
 function NodeIterator:iterate()
   local iteration_count = 0
   local function iter(nodes)

lua/nvim-tree/keymap.lua

@@ -1,7 +1,7 @@
 local M = {}
 
 --- Apply mappings to a scratch buffer and return buffer local mappings
----@param fn function(bufnr) on_attach or default_on_attach
+---@param fn fun(bufnr: integer) on_attach or default_on_attach
 ---@return table as per vim.api.nvim_buf_get_keymap
 local function generate_keymap(fn)
   -- create an unlisted scratch buffer
@@ -29,14 +29,6 @@ function M.get_keymap_default()
   return generate_keymap(M.default_on_attach)
 end
 
-function M.setup(opts)
-  if type(opts.on_attach) ~= "function" then
-    M.on_attach = M.default_on_attach
-  else
-    M.on_attach = opts.on_attach
-  end
-end
-
 ---@param bufnr integer
 function M.default_on_attach(bufnr)
   local api = require("nvim-tree.api")
@@ -51,68 +43,74 @@ function M.default_on_attach(bufnr)
     }
   end
 
-  -- formatting cannot be re-enabled, hence this is at the end
-  ---@format disable
   -- BEGIN_DEFAULT_ON_ATTACH
-  vim.keymap.set('n', '<C-]>',   api.tree.change_root_to_node,        opts('CD'))
+  vim.keymap.set("n", "<C-]>",          api.tree.change_root_to_node,       opts("CD"))
-  vim.keymap.set('n', '<C-e>',   api.node.open.replace_tree_buffer,   opts('Open: In Place'))
+  vim.keymap.set("n", "<C-e>",          api.node.open.replace_tree_buffer,  opts("Open: In Place"))
-  vim.keymap.set('n', '<C-k>',   api.node.show_info_popup,            opts('Info'))
+  vim.keymap.set("n", "<C-k>",          api.node.show_info_popup,           opts("Info"))
-  vim.keymap.set('n', '<C-r>',   api.fs.rename_sub,                   opts('Rename: Omit Filename'))
+  vim.keymap.set("n", "<C-r>",          api.fs.rename_sub,                  opts("Rename: Omit Filename"))
-  vim.keymap.set('n', '<C-t>',   api.node.open.tab,                   opts('Open: New Tab'))
+  vim.keymap.set("n", "<C-t>",          api.node.open.tab,                  opts("Open: New Tab"))
-  vim.keymap.set('n', '<C-v>',   api.node.open.vertical,              opts('Open: Vertical Split'))
+  vim.keymap.set("n", "<C-v>",          api.node.open.vertical,             opts("Open: Vertical Split"))
-  vim.keymap.set('n', '<C-x>',   api.node.open.horizontal,            opts('Open: Horizontal Split'))
+  vim.keymap.set("n", "<C-x>",          api.node.open.horizontal,           opts("Open: Horizontal Split"))
-  vim.keymap.set('n', '<BS>',    api.node.navigate.parent_close,      opts('Close Directory'))
+  vim.keymap.set("n", "<BS>",           api.node.navigate.parent_close,     opts("Close Directory"))
-  vim.keymap.set('n', '<CR>',    api.node.open.edit,                  opts('Open'))
+  vim.keymap.set("n", "<CR>",           api.node.open.edit,                 opts("Open"))
-  vim.keymap.set('n', '<Tab>',   api.node.open.preview,               opts('Open Preview'))
+  vim.keymap.set("n", "<Tab>",          api.node.open.preview,              opts("Open Preview"))
-  vim.keymap.set('n', '>',       api.node.navigate.sibling.next,      opts('Next Sibling'))
+  vim.keymap.set("n", ">",              api.node.navigate.sibling.next,     opts("Next Sibling"))
-  vim.keymap.set('n', '<',       api.node.navigate.sibling.prev,      opts('Previous Sibling'))
+  vim.keymap.set("n", "<",              api.node.navigate.sibling.prev,     opts("Previous Sibling"))
-  vim.keymap.set('n', '.',       api.node.run.cmd,                    opts('Run Command'))
+  vim.keymap.set("n", ".",              api.node.run.cmd,                   opts("Run Command"))
-  vim.keymap.set('n', '-',       api.tree.change_root_to_parent,      opts('Up'))
+  vim.keymap.set("n", "-",              api.tree.change_root_to_parent,     opts("Up"))
-  vim.keymap.set('n', 'a',       api.fs.create,                       opts('Create File Or Directory'))
+  vim.keymap.set("n", "a",              api.fs.create,                      opts("Create File Or Directory"))
-  vim.keymap.set('n', 'bd',      api.marks.bulk.delete,               opts('Delete Bookmarked'))
+  vim.keymap.set("n", "bd",             api.marks.bulk.delete,              opts("Delete Bookmarked"))
-  vim.keymap.set('n', 'bt',      api.marks.bulk.trash,                opts('Trash Bookmarked'))
+  vim.keymap.set("n", "bt",             api.marks.bulk.trash,               opts("Trash Bookmarked"))
-  vim.keymap.set('n', 'bmv',     api.marks.bulk.move,                 opts('Move Bookmarked'))
+  vim.keymap.set("n", "bmv",            api.marks.bulk.move,                opts("Move Bookmarked"))
-  vim.keymap.set('n', 'B',       api.tree.toggle_no_buffer_filter,    opts('Toggle Filter: No Buffer'))
+  vim.keymap.set("n", "B",              api.tree.toggle_no_buffer_filter,   opts("Toggle Filter: No Buffer"))
-  vim.keymap.set('n', 'c',       api.fs.copy.node,                    opts('Copy'))
+  vim.keymap.set("n", "c",              api.fs.copy.node,                   opts("Copy"))
-  vim.keymap.set('n', 'C',       api.tree.toggle_git_clean_filter,    opts('Toggle Filter: Git Clean'))
+  vim.keymap.set("n", "C",              api.tree.toggle_git_clean_filter,   opts("Toggle Filter: Git Clean"))
-  vim.keymap.set('n', '[c',      api.node.navigate.git.prev,          opts('Prev Git'))
+  vim.keymap.set("n", "[c",             api.node.navigate.git.prev,         opts("Prev Git"))
-  vim.keymap.set('n', ']c',      api.node.navigate.git.next,          opts('Next Git'))
+  vim.keymap.set("n", "]c",             api.node.navigate.git.next,         opts("Next Git"))
-  vim.keymap.set('n', 'd',       api.fs.remove,                       opts('Delete'))
+  vim.keymap.set("n", "d",              api.fs.remove,                      opts("Delete"))
-  vim.keymap.set('n', 'D',       api.fs.trash,                        opts('Trash'))
+  vim.keymap.set("n", "D",              api.fs.trash,                       opts("Trash"))
-  vim.keymap.set('n', 'E',       api.tree.expand_all,                 opts('Expand All'))
+  vim.keymap.set("n", "E",              api.tree.expand_all,                opts("Expand All"))
-  vim.keymap.set('n', 'e',       api.fs.rename_basename,              opts('Rename: Basename'))
+  vim.keymap.set("n", "e",              api.fs.rename_basename,             opts("Rename: Basename"))
-  vim.keymap.set('n', ']e',      api.node.navigate.diagnostics.next,  opts('Next Diagnostic'))
+  vim.keymap.set("n", "]e",             api.node.navigate.diagnostics.next, opts("Next Diagnostic"))
-  vim.keymap.set('n', '[e',      api.node.navigate.diagnostics.prev,  opts('Prev Diagnostic'))
+  vim.keymap.set("n", "[e",             api.node.navigate.diagnostics.prev, opts("Prev Diagnostic"))
-  vim.keymap.set('n', 'F',       api.live_filter.clear,               opts('Live Filter: Clear'))
+  vim.keymap.set("n", "F",              api.live_filter.clear,              opts("Live Filter: Clear"))
-  vim.keymap.set('n', 'f',       api.live_filter.start,               opts('Live Filter: Start'))
+  vim.keymap.set("n", "f",              api.live_filter.start,              opts("Live Filter: Start"))
-  vim.keymap.set('n', 'g?',      api.tree.toggle_help,                opts('Help'))
+  vim.keymap.set("n", "g?",             api.tree.toggle_help,               opts("Help"))
-  vim.keymap.set('n', 'gy',      api.fs.copy.absolute_path,           opts('Copy Absolute Path'))
+  vim.keymap.set("n", "gy",             api.fs.copy.absolute_path,          opts("Copy Absolute Path"))
-  vim.keymap.set('n', 'ge',      api.fs.copy.basename,                opts('Copy Basename'))
+  vim.keymap.set("n", "ge",             api.fs.copy.basename,               opts("Copy Basename"))
-  vim.keymap.set('n', 'H',       api.tree.toggle_hidden_filter,       opts('Toggle Filter: Dotfiles'))
+  vim.keymap.set("n", "H",              api.tree.toggle_hidden_filter,      opts("Toggle Filter: Dotfiles"))
-  vim.keymap.set('n', 'I',       api.tree.toggle_gitignore_filter,    opts('Toggle Filter: Git Ignore'))
+  vim.keymap.set("n", "I",              api.tree.toggle_gitignore_filter,   opts("Toggle Filter: Git Ignore"))
-  vim.keymap.set('n', 'J',       api.node.navigate.sibling.last,      opts('Last Sibling'))
+  vim.keymap.set("n", "J",              api.node.navigate.sibling.last,     opts("Last Sibling"))
-  vim.keymap.set('n', 'K',       api.node.navigate.sibling.first,     opts('First Sibling'))
+  vim.keymap.set("n", "K",              api.node.navigate.sibling.first,    opts("First Sibling"))
-  vim.keymap.set('n', 'L',       api.node.open.toggle_group_empty,    opts('Toggle Group Empty'))
+  vim.keymap.set("n", "L",              api.node.open.toggle_group_empty,   opts("Toggle Group Empty"))
-  vim.keymap.set('n', 'M',       api.tree.toggle_no_bookmark_filter,  opts('Toggle Filter: No Bookmark'))
+  vim.keymap.set("n", "M",              api.tree.toggle_no_bookmark_filter, opts("Toggle Filter: No Bookmark"))
-  vim.keymap.set('n', 'm',       api.marks.toggle,                    opts('Toggle Bookmark'))
+  vim.keymap.set("n", "m",              api.marks.toggle,                   opts("Toggle Bookmark"))
-  vim.keymap.set('n', 'o',       api.node.open.edit,                  opts('Open'))
+  vim.keymap.set("n", "o",              api.node.open.edit,                 opts("Open"))
-  vim.keymap.set('n', 'O',       api.node.open.no_window_picker,      opts('Open: No Window Picker'))
+  vim.keymap.set("n", "O",              api.node.open.no_window_picker,     opts("Open: No Window Picker"))
-  vim.keymap.set('n', 'p',       api.fs.paste,                        opts('Paste'))
+  vim.keymap.set("n", "p",              api.fs.paste,                       opts("Paste"))
-  vim.keymap.set('n', 'P',       api.node.navigate.parent,            opts('Parent Directory'))
+  vim.keymap.set("n", "P",              api.node.navigate.parent,           opts("Parent Directory"))
-  vim.keymap.set('n', 'q',       api.tree.close,                      opts('Close'))
+  vim.keymap.set("n", "q",              api.tree.close,                     opts("Close"))
-  vim.keymap.set('n', 'r',       api.fs.rename,                       opts('Rename'))
+  vim.keymap.set("n", "r",              api.fs.rename,                      opts("Rename"))
-  vim.keymap.set('n', 'R',       api.tree.reload,                     opts('Refresh'))
+  vim.keymap.set("n", "R",              api.tree.reload,                    opts("Refresh"))
-  vim.keymap.set('n', 's',       api.node.run.system,                 opts('Run System'))
+  vim.keymap.set("n", "s",              api.node.run.system,                opts("Run System"))
-  vim.keymap.set('n', 'S',       api.tree.search_node,                opts('Search'))
+  vim.keymap.set("n", "S",              api.tree.search_node,               opts("Search"))
-  vim.keymap.set('n', 'u',       api.fs.rename_full,                  opts('Rename: Full Path'))
+  vim.keymap.set("n", "u",              api.fs.rename_full,                 opts("Rename: Full Path"))
-  vim.keymap.set('n', 'U',       api.tree.toggle_custom_filter,       opts('Toggle Filter: Hidden'))
+  vim.keymap.set("n", "U",              api.tree.toggle_custom_filter,      opts("Toggle Filter: Hidden"))
-  vim.keymap.set('n', 'W',       api.tree.collapse_all,               opts('Collapse'))
+  vim.keymap.set("n", "W",              api.tree.collapse_all,              opts("Collapse All"))
-  vim.keymap.set('n', 'x',       api.fs.cut,                          opts('Cut'))
+  vim.keymap.set("n", "x",              api.fs.cut,                         opts("Cut"))
-  vim.keymap.set('n', 'y',       api.fs.copy.filename,                opts('Copy Name'))
+  vim.keymap.set("n", "y",              api.fs.copy.filename,               opts("Copy Name"))
-  vim.keymap.set('n', 'Y',       api.fs.copy.relative_path,           opts('Copy Relative Path'))
+  vim.keymap.set("n", "Y",              api.fs.copy.relative_path,          opts("Copy Relative Path"))
-  vim.keymap.set('n', '<2-LeftMouse>',  api.node.open.edit,           opts('Open'))
+  vim.keymap.set("n", "<2-LeftMouse>",  api.node.open.edit,                 opts("Open"))
-  vim.keymap.set('n', '<2-RightMouse>', api.tree.change_root_to_node, opts('CD'))
+  vim.keymap.set("n", "<2-RightMouse>", api.tree.change_root_to_node,       opts("CD"))
   -- END_DEFAULT_ON_ATTACH
 end
 
+function M.setup(opts)
+  if type(opts.on_attach) ~= "function" then
+    M.on_attach = M.default_on_attach
+  else
+    M.on_attach = opts.on_attach
+  end
+end
+
 return M

lua/nvim-tree/legacy.lua

@@ -6,12 +6,12 @@ local M = {}
 -- silently move, please add to help nvim-tree-legacy-opts
 local function refactored(opts)
   -- 2022/06/20
-  utils.move_missing_val(opts, "update_focused_file", "update_cwd", opts, "update_focused_file", "update_root", true)
+  utils.move_missing_val(opts, "update_focused_file", "update_cwd", opts, "update_focused_file", "update_root",        true)
-  utils.move_missing_val(opts, "", "update_cwd", opts, "", "sync_root_with_cwd", true)
+  utils.move_missing_val(opts, "",                    "update_cwd", opts, "",                    "sync_root_with_cwd", true)
 
   -- 2022/11/07
-  utils.move_missing_val(opts, "", "open_on_tab", opts, "tab.sync", "open", false)
+  utils.move_missing_val(opts, "", "open_on_tab",              opts, "tab.sync", "open",   false)
-  utils.move_missing_val(opts, "", "open_on_tab", opts, "tab.sync", "close", true)
+  utils.move_missing_val(opts, "", "open_on_tab",              opts, "tab.sync", "close",  true)
   utils.move_missing_val(opts, "", "ignore_buf_on_tab_change", opts, "tab.sync", "ignore", true)
 
   -- 2022/11/22
@@ -60,6 +60,13 @@ local function refactored(opts)
     end
   end
   utils.move_missing_val(opts, "update_focused_file", "ignore_list", opts, "update_focused_file.update_root", "ignore_list", true)
+
+  -- 2025/04/30
+  if opts.renderer and opts.renderer.icons and type(opts.renderer.icons.padding) == "string" then
+    local icons_padding = opts.renderer.icons.padding
+    opts.renderer.icons.padding = {}
+    opts.renderer.icons.padding.icon = icons_padding
+  end
 end
 
 local function deprecated(opts)

lua/nvim-tree/lib.lua

@@ -1,9 +1,5 @@
-local view = require("nvim-tree.view")
 local core = require("nvim-tree.core")
-local utils = require("nvim-tree.utils")
-local events = require("nvim-tree.events")
 local notify = require("nvim-tree.notify")
-local explorer_node = require("nvim-tree.explorer.node")
 
 ---@class LibOpenOpts
 ---@field path string|nil path
@@ -14,177 +10,12 @@ local M = {
   target_winid = nil,
 }
 
----Cursor position as per vim.api.nvim_win_get_cursor
+function M.set_target_win()
----@return integer[]|nil
-function M.get_cursor_position()
-  if not core.get_explorer() then
-    return
-  end
-
-  local winnr = view.get_winnr()
-  if not winnr or not vim.api.nvim_win_is_valid(winnr) then
-    return
-  end
-
-  return vim.api.nvim_win_get_cursor(winnr)
-end
-
----@return Node|nil
-function M.get_node_at_cursor()
-  local cursor = M.get_cursor_position()
-  if not cursor then
-    return
-  end
-
-  if cursor[1] == 1 and view.is_root_folder_visible(core.get_cwd()) then
-    return { name = ".." }
-  end
-
-  return utils.get_nodes_by_line(core.get_explorer().nodes, core.get_nodes_starting_line())[cursor[1]]
-end
-
----Create a sanitized partial copy of a node, populating children recursively.
----@param node Node|nil
----@return Node|nil cloned node
-local function clone_node(node)
-  if not node then
-    node = core.get_explorer()
-    if not node then
-      return nil
-    end
-  end
-
-  local n = {
-    absolute_path = node.absolute_path,
-    executable = node.executable,
-    extension = node.extension,
-    git_status = node.git_status,
-    has_children = node.has_children,
-    hidden = node.hidden,
-    link_to = node.link_to,
-    name = node.name,
-    open = node.open,
-    type = node.type,
-    fs_stat = node.fs_stat,
-  }
-
-  if type(node.nodes) == "table" then
-    n.nodes = {}
-    for _, child in ipairs(node.nodes) do
-      table.insert(n.nodes, clone_node(child))
-    end
-  end
-
-  return n
-end
-
----Api.tree.get_nodes
----@return Node[]|nil
-function M.get_nodes()
-  return clone_node(core.get_explorer())
-end
-
--- If node is grouped, return the last node in the group. Otherwise, return the given node.
----@param node Node
----@return Node
-function M.get_last_group_node(node)
-  while node and node.group_next do
-    node = node.group_next
-  end
-
-  return node ---@diagnostic disable-line: return-type-mismatch -- it can't be nil
-end
-
----Group empty folders
--- Recursively group nodes
----@param node Node
----@return Node[]
-function M.group_empty_folders(node)
-  local is_root = not node.parent
-  local child_folder_only = explorer_node.has_one_child_folder(node) and node.nodes[1]
-  if M.group_empty and not is_root and child_folder_only then
-    node.group_next = child_folder_only
-    local ns = M.group_empty_folders(child_folder_only)
-    node.nodes = ns or {}
-    return ns
-  end
-  return node.nodes
-end
-
----Ungroup empty folders
--- If a node is grouped, ungroup it: put node.group_next to the node.nodes and set node.group_next to nil
----@param node Node
-function M.ungroup_empty_folders(node)
-  local cur = node
-  while cur and cur.group_next do
-    cur.nodes = { cur.group_next }
-    cur.group_next = nil
-    cur = cur.nodes[1]
-  end
-end
-
----@param node Node
----@return Node[]
-function M.get_all_nodes_in_group(node)
-  local next_node = utils.get_parent_of_group(node)
-  local nodes = {}
-  while next_node do
-    table.insert(nodes, next_node)
-    next_node = next_node.group_next
-  end
-  return nodes
-end
-
--- Toggle group empty folders
----@param head_node Node
-local function toggle_group_folders(head_node)
-  local is_grouped = head_node.group_next ~= nil
-
-  if is_grouped then
-    M.ungroup_empty_folders(head_node)
-  else
-    M.group_empty_folders(head_node)
-  end
-end
-
----@param node Node
-function M.expand_or_collapse(node, toggle_group)
   local explorer = core.get_explorer()
 
-  toggle_group = toggle_group or false
-  if node.has_children then
-    node.has_children = false
-  end
-
-  if #node.nodes == 0 and explorer then
-    explorer:expand(node)
-  end
-
-  local head_node = utils.get_parent_of_group(node)
-  if toggle_group then
-    toggle_group_folders(head_node)
-  end
-
-  local open = M.get_last_group_node(node).open
-  local next_open
-  if toggle_group then
-    next_open = open
-  else
-    next_open = not open
-  end
-  for _, n in ipairs(M.get_all_nodes_in_group(head_node)) do
-    n.open = next_open
-  end
-
-  if explorer then
-    explorer.renderer:draw()
-  end
-end
-
-function M.set_target_win()
   local id = vim.api.nvim_get_current_win()
-  local tree_id = view.get_winnr()
+
-  if tree_id and id == tree_id then
+  if explorer and id == explorer.view:get_winid(nil, "lib.set_target_win") then
     M.target_winid = 0
     return
   end
@@ -200,11 +31,16 @@ local function handle_buf_cwd(cwd)
 end
 
 local function open_view_and_draw()
+  local explorer = core.get_explorer()
+
   local cwd = vim.fn.getcwd()
-  view.open()
+
+  if explorer then
+    explorer.view:open()
+  end
+
   handle_buf_cwd(cwd)
 
-  local explorer = core.get_explorer()
   if explorer then
     explorer.renderer:draw()
   end
@@ -234,7 +70,7 @@ end
 ---@param items_short string[]
 ---@param items_long string[]
 ---@param kind string|nil
----@param callback fun(item_short: string)
+---@param callback fun(item_short: string|nil)
 function M.prompt(prompt_input, prompt_select, items_short, items_long, kind, callback)
   local function format_item(short)
     for i, s in ipairs(items_short) do
@@ -266,40 +102,42 @@ function M.open(opts)
   M.set_target_win()
   if not core.get_explorer() or opts.path then
     if opts.path then
-      core.init(opts.path)
+      core.init(opts.path, "lib.open - opts.path")
     else
       local cwd, err = vim.loop.cwd()
       if not cwd then
         notify.error(string.format("current working directory unavailable: %s", err))
         return
       end
-      core.init(cwd)
+      core.init(cwd, "lib.open - cwd")
     end
   end
 
   local explorer = core.get_explorer()
 
   if should_hijack_current_buf() then
-    view.close_this_tab_only()
-    view.open_in_win()
     if explorer then
+      explorer.view:close_this_tab_only()
+      explorer.view:open_in_win()
       explorer.renderer:draw()
     end
   elseif opts.winid then
-    view.open_in_win({ hijack_current_buf = false, resize = false, winid = opts.winid })
     if explorer then
+      explorer.view:open_in_win({ hijack_current_buf = false, resize = false, winid = opts.winid })
       explorer.renderer:draw()
     end
   elseif opts.current_window then
-    view.open_in_win({ hijack_current_buf = false, resize = false })
     if explorer then
+      explorer.view:open_in_win({ hijack_current_buf = false, resize = false })
       explorer.renderer:draw()
     end
   else
     open_view_and_draw()
   end
-  view.restore_tab_state()
+
-  events._dispatch_on_tree_open()
+  if explorer then
+    explorer.view:restore_state()
+  end
 end
 
 function M.setup(opts)

lua/nvim-tree/log.lua

@@ -1,7 +1,12 @@
-local M = {
+---@alias LogTypes "all" | "config" | "copy_paste" | "dev" | "diagnostics" | "git"  | "profile" | "watcher"
-  config = nil,
+
-  path = nil,
+---@type table<LogTypes, boolean>
-}
+local types = {}
+
+---@type string
+local file_path
+
+local M = {}
 
 --- Write to log file
 ---@param typ string as per log.types config
@@ -13,7 +18,26 @@ function M.raw(typ, fmt, ...)
   end
 
   local line = string.format(fmt, ...)
-  local file = io.open(M.path, "a")
+  local file = io.open(file_path, "a")
+  if file then
+    io.output(file)
+    io.write(line)
+    io.close(file)
+  end
+end
+
+--- Write to a new file
+---@param typ LogTypes as per log.types config
+---@param path string absolute path
+---@param fmt string for string.format
+---@param ... any arguments for string.format
+function M.file(typ, path, fmt, ...)
+  if not M.enabled(typ) then
+    return
+  end
+
+  local line = string.format(fmt, ...)
+  local file = io.open(path, "w")
   if file then
     io.output(file)
     io.write(line)
@@ -52,7 +76,7 @@ end
 
 --- Write to log file
 --- time and typ are prefixed and a trailing newline is added
----@param typ string as per log.types config
+---@param typ LogTypes as per log.types config
 ---@param fmt string for string.format
 ---@param ... any arguments for string.format
 function M.line(typ, fmt, ...)
@@ -69,33 +93,31 @@ function M.set_inspect_opts(opts)
 end
 
 --- Write to log file the inspection of a node
---- defaults to the node under cursor if none is provided
+---@param typ LogTypes as per log.types config
----@param typ string as per log.types config
+---@param node Node node to be inspected
----@param node table|nil node to be inspected
 ---@param fmt string for string.format
----@vararg any arguments for string.format
+---@param ... any arguments for string.format
 function M.node(typ, node, fmt, ...)
   if M.enabled(typ) then
-    node = node or require("nvim-tree.lib").get_node_at_cursor()
     M.raw(typ, string.format("[%s] [%s] %s\n%s\n", os.date("%Y-%m-%d %H:%M:%S"), typ, (fmt or "???"), vim.inspect(node, inspect_opts)), ...)
   end
 end
 
 --- Logging is enabled for typ or all
----@param typ string as per log.types config
+---@param typ LogTypes as per log.types config
 ---@return boolean
 function M.enabled(typ)
-  return M.path ~= nil and (M.config.types[typ] or M.config.types.all)
+  return file_path ~= nil and (types[typ] or types.all)
 end
 
 function M.setup(opts)
-  M.config = opts.log
+  if opts.log and opts.log.enable and opts.log.types then
-  if M.config and M.config.enable and M.config.types then
+    types = opts.log.types
-    M.path = string.format("%s/nvim-tree.log", vim.fn.stdpath("log"), os.date("%H:%M:%S"), vim.env.USER)
+    file_path = string.format("%s/nvim-tree.log", vim.fn.stdpath("log"), os.date("%H:%M:%S"), vim.env.USER)
-    if M.config.truncate then
+    if opts.log.truncate then
-      os.remove(M.path)
+      os.remove(file_path)
     end
-    require("nvim-tree.notify").debug("nvim-tree.lua logging to " .. M.path)
+    require("nvim-tree.notify").debug("nvim-tree.lua logging to " .. file_path)
   end
 end
 

lua/nvim-tree/marks/init.lua

@@ -8,35 +8,39 @@ local rename_file = require("nvim-tree.actions.fs.rename-file")
 local trash = require("nvim-tree.actions.fs.trash")
 local utils = require("nvim-tree.utils")
 
----@class Marks
+local Class = require("nvim-tree.classic")
----@field config table hydrated user opts.filters
+local DirectoryNode = require("nvim-tree.node.directory")
+
+---@class (exact) Marks: Class
 ---@field private explorer Explorer
 ---@field private marks table<string, Node> by absolute path
-local Marks = {}
+local Marks = Class:extend()
 
----@return Marks
+---@class Marks
----@param opts table user options
+---@overload fun(args: MarksArgs): Marks
----@param explorer Explorer
-function Marks:new(opts, explorer)
-  local o = {
-    explorer = explorer,
-    config = {
-      ui = opts.ui,
-      filesystem_watchers = opts.filesystem_watchers,
-    },
-    marks = {},
-  }
 
-  setmetatable(o, self)
+---@class (exact) MarksArgs
-  self.__index = self
+---@field explorer Explorer
-  return o
+
+---@protected
+---@param args MarksArgs
+function Marks:new(args)
+  args.explorer:log_new("Marks")
+
+  self.explorer = args.explorer
+
+  self.marks = {}
+end
+
+function Marks:destroy()
+  self.explorer:log_destroy("Marks")
 end
 
 ---Clear all marks and reload if watchers disabled
 ---@private
 function Marks:clear_reload()
   self:clear()
-  if not self.config.filesystem_watchers.enable then
+  if not self.explorer.opts.filesystem_watchers.enable then
     self.explorer:reload_explorer()
   end
 end
@@ -98,7 +102,7 @@ function Marks:bulk_delete()
     self:clear_reload()
   end
 
-  if self.config.ui.confirm.remove then
+  if self.explorer.opts.ui.confirm.remove then
     local prompt_select = "Remove bookmarked ?"
     local prompt_input = prompt_select .. " y/N: "
     lib.prompt(prompt_input, prompt_select, { "", "y" }, { "No", "Yes" }, "nvimtree_bulk_delete", function(item_short)
@@ -127,7 +131,7 @@ function Marks:bulk_trash()
     self:clear_reload()
   end
 
-  if self.config.ui.confirm.trash then
+  if self.explorer.opts.ui.confirm.trash then
     local prompt_select = "Trash bookmarked ?"
     local prompt_input = prompt_select .. " y/N: "
     lib.prompt(prompt_input, prompt_select, { "", "y" }, { "No", "Yes" }, "nvimtree_bulk_trash", function(item_short)
@@ -149,10 +153,10 @@ function Marks:bulk_move()
     return
   end
 
-  local node_at_cursor = lib.get_node_at_cursor()
+  local node_at_cursor = self.explorer:get_node_at_cursor()
   local default_path = core.get_cwd()
 
-  if node_at_cursor and node_at_cursor.type == "directory" then
+  if node_at_cursor and node_at_cursor:is(DirectoryNode) then
     default_path = node_at_cursor.absolute_path
   elseif node_at_cursor and node_at_cursor.parent then
     default_path = node_at_cursor.parent.absolute_path
@@ -188,7 +192,7 @@ end
 ---@private
 ---@param up boolean
 function Marks:navigate(up)
-  local node = lib.get_node_at_cursor()
+  local node = self.explorer:get_node_at_cursor()
   if not node then
     return
   end
@@ -198,7 +202,8 @@ function Marks:navigate(up)
 
   Iterator.builder(self.explorer.nodes)
     :recursor(function(n)
-      return n.open and n.nodes
+      local dir = n:as(DirectoryNode)
+      return dir and dir.open and dir.nodes
     end)
     :applier(function(n)
       if n.absolute_path == node.absolute_path then
@@ -261,7 +266,7 @@ function Marks:navigate_select()
       return
     end
     local node = self.marks[choice]
-    if node and not node.nodes and not utils.get_win_buf_from_path(node.absolute_path) then
+    if node and not node:is(DirectoryNode) and not utils.get_win_buf_from_path(node.absolute_path) then
       open_file.fn("edit", node.absolute_path)
     elseif node then
       utils.focus_file(node.absolute_path)

lua/nvim-tree/multi-instance-debug.lua

@@ -0,0 +1,112 @@
+local globals = require("nvim-tree.globals")
+
+local M = {}
+
+--- Debugging only.
+--- Tabs show WINID_BY_TABID winid and BUFNR_BY_TABID bufnr for the tab.
+--- Orphans for inexistent tab_ids are shown at the right.
+--- lib.target_winid is always shown at the right next to a close button.
+--- Enable with:
+---   vim.opt.tabline = "%!v:lua.require('nvim-tree.explorer.view').tab_line()"
+---   vim.opt.showtabline = 2
+---@return string
+function M.tab_line()
+  local tabids = vim.api.nvim_list_tabpages()
+  local tabid_cur = vim.api.nvim_get_current_tabpage()
+
+  local bufnr_by_tabid = vim.deepcopy(globals.BUFNR_BY_TABID)
+  local winid_by_tabid = vim.deepcopy(globals.WINID_BY_TABID)
+
+  local tl = "%#TabLine#"
+
+  for i, tabid in ipairs(tabids) do
+    -- click to select
+    tl = tl .. "%" .. i .. "T"
+
+    -- style
+    if tabid == tabid_cur then
+      tl = tl .. "%#StatusLine#|"
+    else
+      tl = tl .. "|%#TabLine#"
+    end
+
+    -- tab_id itself
+    tl = tl .. " t" .. tabid
+
+    -- winid, if present
+    local tp = globals.WINID_BY_TABID[tabid]
+    if tp then
+      tl = tl .. " w" .. (tp or "nil")
+    else
+      tl = tl .. "      "
+    end
+
+    -- bufnr, if present
+    local bpt = globals.BUFNR_BY_TABID[tabid]
+    if bpt then
+      tl = tl .. " b" .. bpt
+    else
+      tl = tl .. "   "
+    end
+
+    tl = tl .. " "
+
+    -- remove actively mapped
+    bufnr_by_tabid[tabid] = nil
+    winid_by_tabid[tabid] = nil
+  end
+
+  -- close last and reset
+  tl = tl .. "|%#CursorLine#%T"
+
+  -- collect orphans
+  local orphans = {}
+  for tab_id, bufnr in pairs(bufnr_by_tabid) do
+    orphans[tab_id] = orphans[tab_id] or {}
+    orphans[tab_id].bufnr = bufnr
+  end
+  for tab_id, tp in pairs(winid_by_tabid) do
+    orphans[tab_id] = orphans[tab_id] or {}
+    orphans[tab_id].winid = tp
+  end
+
+  -- right-align
+  tl = tl .. "%=%#TabLine#"
+
+  -- print orphans
+  for tab_id, orphan in pairs(orphans) do
+    -- inexistent tab
+    tl = tl .. "%#error#| t" .. tab_id
+
+    -- maybe winid
+    if orphan.winid then
+      tl = tl .. " w" .. (orphan.winid or "nil")
+    else
+      tl = tl .. "      "
+    end
+
+    -- maybe bufnr
+    if orphan.bufnr then
+      tl = tl .. " b" .. orphan.bufnr
+    else
+      tl = tl .. "   "
+    end
+    tl = tl .. " "
+  end
+
+  -- target win id and close button
+  tl = tl .. "|%#TabLine# twi" .. (require("nvim-tree.lib").target_winid or "?") .. " %999X| X |"
+
+  return tl
+end
+
+function M.setup(opts)
+  if not opts.experimental.multi_instance then
+    return
+  end
+
+  vim.opt.tabline = "%!v:lua.require('nvim-tree.multi-instance-debug').tab_line()"
+  vim.opt.showtabline = 2
+end
+
+return M

lua/nvim-tree/node.lua

@@ -1,36 +0,0 @@
----@meta
-
----@class ParentNode
----@field name string
-
----@class BaseNode
----@field absolute_path string
----@field executable boolean
----@field fs_stat uv.fs_stat.result|nil
----@field git_status GitStatus|nil
----@field hidden boolean
----@field is_dot boolean
----@field name string
----@field parent DirNode
----@field type string
----@field watcher function|nil
----@field diag_status DiagStatus|nil
-
----@class DirNode: BaseNode
----@field has_children boolean
----@field group_next Node|nil
----@field nodes Node[]
----@field open boolean
----@field hidden_stats table -- Each field of this table is a key for source and value for count
-
----@class FileNode: BaseNode
----@field extension string
-
----@class SymlinkDirNode: DirNode
----@field link_to string
-
----@class SymlinkFileNode: FileNode
----@field link_to string
-
----@alias SymlinkNode SymlinkDirNode|SymlinkFileNode
----@alias Node ParentNode|DirNode|FileNode|SymlinkNode|Explorer

lua/nvim-tree/node/directory-link.lua

@@ -0,0 +1,87 @@
+local git_utils = require("nvim-tree.git.utils")
+local utils = require("nvim-tree.utils")
+
+local DirectoryNode = require("nvim-tree.node.directory")
+local LinkNode = require("nvim-tree.node.link")
+
+---@class (exact) DirectoryLinkNode: DirectoryNode, LinkNode
+local DirectoryLinkNode = DirectoryNode:extend()
+DirectoryLinkNode:implement(LinkNode)
+
+---@class DirectoryLinkNode
+---@overload fun(args: LinkNodeArgs): DirectoryLinkNode
+
+---@protected
+---@param args LinkNodeArgs
+function DirectoryLinkNode:new(args)
+  LinkNode.new(self, args)
+
+  -- create DirectoryNode with watcher on link_to
+  local absolute_path = args.absolute_path
+  args.absolute_path = args.link_to
+  DirectoryLinkNode.super.new(self, args)
+
+  self.type          = "link"
+
+  -- reset absolute path to the link itself
+  self.absolute_path = absolute_path
+end
+
+function DirectoryLinkNode:destroy()
+  DirectoryNode.destroy(self)
+end
+
+---Update the directory git_status of link target and the file status of the link itself
+---@param parent_ignored boolean
+---@param project GitProject?
+function DirectoryLinkNode:update_git_status(parent_ignored, project)
+  self.git_status = git_utils.git_status_dir(parent_ignored, project, self.link_to, self.absolute_path)
+end
+
+---@return HighlightedString name
+function DirectoryLinkNode:highlighted_icon()
+  if not self.explorer.opts.renderer.icons.show.folder then
+    return self:highlighted_icon_empty()
+  end
+
+  local str, hl
+
+  if self.open then
+    str = self.explorer.opts.renderer.icons.glyphs.folder.symlink_open
+    hl  = "NvimTreeOpenedFolderIcon"
+  else
+    str = self.explorer.opts.renderer.icons.glyphs.folder.symlink
+    hl  = "NvimTreeClosedFolderIcon"
+  end
+
+  return { str = str, hl = { hl } }
+end
+
+---Maybe override name with arrow
+---@return HighlightedString name
+function DirectoryLinkNode:highlighted_name()
+  local name = DirectoryNode.highlighted_name(self)
+
+  if self.explorer.opts.renderer.symlink_destination then
+    local link_to = utils.path_relative(self.link_to, self.explorer.absolute_path)
+
+    name.str      = string.format("%s%s%s", name.str, self.explorer.opts.renderer.icons.symlink_arrow, link_to)
+    name.hl       = { "NvimTreeSymlinkFolderName" }
+  end
+
+  return name
+end
+
+---Create a sanitized partial copy of a node, populating children recursively.
+---@param api_nodes table<number, nvim_tree.api.Node>? optional map of uids to api node to populate
+---@return nvim_tree.api.DirectoryLinkNode cloned
+function DirectoryLinkNode:clone(api_nodes)
+  local clone = DirectoryNode.clone(self, api_nodes) --[[@as nvim_tree.api.DirectoryLinkNode]]
+
+  clone.link_to = self.link_to
+  clone.fs_stat_target = self.fs_stat_target
+
+  return clone
+end
+
+return DirectoryLinkNode

lua/nvim-tree/node/directory.lua

@@ -0,0 +1,293 @@
+local git_utils = require("nvim-tree.git.utils")
+local icons = require("nvim-tree.renderer.components.devicons")
+local notify = require("nvim-tree.notify")
+
+local Node = require("nvim-tree.node")
+
+---@class (exact) DirectoryNode: Node
+---@field has_children boolean
+---@field group_next DirectoryNode? -- If node is grouped, this points to the next child dir/link node
+---@field nodes Node[]
+---@field open boolean
+---@field hidden_stats table? -- Each field of this table is a key for source and value for count
+---@field private watcher Watcher?
+local DirectoryNode = Node:extend()
+
+---@class DirectoryNode
+---@overload fun(args: NodeArgs): DirectoryNode
+
+---@protected
+---@param args NodeArgs
+function DirectoryNode:new(args)
+  DirectoryNode.super.new(self, args)
+
+  local handle       = vim.loop.fs_scandir(args.absolute_path)
+  local has_children = handle and vim.loop.fs_scandir_next(handle) ~= nil or false
+
+  self.type          = "directory"
+
+  self.has_children  = has_children
+  self.group_next    = nil
+  self.nodes         = {}
+  self.open          = false
+  self.hidden_stats  = nil
+
+  self.watcher       = require("nvim-tree.explorer.watch").create_watcher(self)
+end
+
+function DirectoryNode:destroy()
+  if self.watcher then
+    self.watcher:destroy()
+    self.watcher = nil
+  end
+
+  if self.nodes then
+    for _, node in pairs(self.nodes) do
+      node:destroy()
+    end
+  end
+
+  Node.destroy(self)
+end
+
+---Update the git_status of the directory
+---@param parent_ignored boolean
+---@param project GitProject?
+function DirectoryNode:update_git_status(parent_ignored, project)
+  self.git_status = git_utils.git_status_dir(parent_ignored, project, self.absolute_path, nil)
+end
+
+---@return GitXY[]?
+function DirectoryNode:get_git_xy()
+  if not self.git_status or not self.explorer.opts.git.show_on_dirs then
+    return nil
+  end
+
+  local xys = {}
+  if not self:last_group_node().open or self.explorer.opts.git.show_on_open_dirs then
+    -- dir is closed or we should show on open_dirs
+    if self.git_status.file ~= nil then
+      table.insert(xys, self.git_status.file)
+    end
+    if self.git_status.dir ~= nil then
+      if self.git_status.dir.direct ~= nil then
+        for _, s in pairs(self.git_status.dir.direct) do
+          table.insert(xys, s)
+        end
+      end
+      if self.git_status.dir.indirect ~= nil then
+        for _, s in pairs(self.git_status.dir.indirect) do
+          table.insert(xys, s)
+        end
+      end
+    end
+  else
+    -- dir is open and we shouldn't show on open_dirs
+    if self.git_status.file ~= nil then
+      table.insert(xys, self.git_status.file)
+    end
+    if self.git_status.dir ~= nil and self.git_status.dir.direct ~= nil then
+      local deleted = {
+        [" D"] = true,
+        ["D "] = true,
+        ["RD"] = true,
+        ["DD"] = true,
+      }
+      for _, s in pairs(self.git_status.dir.direct) do
+        if deleted[s] then
+          table.insert(xys, s)
+        end
+      end
+    end
+  end
+  if #xys == 0 then
+    return nil
+  else
+    return xys
+  end
+end
+
+-- If node is grouped, return the last node in the group. Otherwise, return the given node.
+---@return DirectoryNode
+function DirectoryNode:last_group_node()
+  return self.group_next and self.group_next:last_group_node() or self
+end
+
+---Return the one and only one child directory
+---@return DirectoryNode?
+function DirectoryNode:single_child_directory()
+  if #self.nodes == 1 then
+    return self.nodes[1]:as(DirectoryNode)
+  end
+end
+
+---@private
+-- Toggle group empty folders
+function DirectoryNode:toggle_group_folders()
+  local is_grouped = self.group_next ~= nil
+
+  if is_grouped then
+    self:ungroup_empty_folders()
+  else
+    self:group_empty_folders()
+  end
+end
+
+---Group empty folders
+-- Recursively group nodes
+---@private
+---@return Node[]
+function DirectoryNode:group_empty_folders()
+  local single_child = self:single_child_directory()
+  if self.explorer.opts.renderer.group_empty and self.parent and single_child then
+    self.group_next = single_child
+    local ns = single_child:group_empty_folders()
+    self.nodes = ns or {}
+    return ns
+  end
+  return self.nodes
+end
+
+---Ungroup empty folders
+-- If a node is grouped, ungroup it: put node.group_next to the node.nodes and set node.group_next to nil
+---@private
+function DirectoryNode:ungroup_empty_folders()
+  if self.group_next then
+    self.group_next:ungroup_empty_folders()
+    self.nodes = { self.group_next }
+    self.group_next = nil
+  end
+end
+
+---@param toggle_group boolean?
+function DirectoryNode:expand_or_collapse(toggle_group)
+  toggle_group = toggle_group or false
+  if self.has_children then
+    self.has_children = false
+  end
+
+  if #self.nodes == 0 then
+    self.explorer:expand(self)
+  end
+
+  local head_node = self:get_parent_of_group() or self
+  if toggle_group then
+    head_node:toggle_group_folders()
+  end
+
+  local open = self:last_group_node().open
+  local next_open
+  if toggle_group then
+    next_open = open
+  else
+    next_open = not open
+  end
+
+  local node = head_node
+  while node do
+    node.open = next_open
+    node = node.group_next
+  end
+
+  self.explorer.renderer:draw()
+end
+
+---@return HighlightedString icon
+function DirectoryNode:highlighted_icon()
+  if not self.explorer.opts.renderer.icons.show.folder then
+    return self:highlighted_icon_empty()
+  end
+
+  local str, hl
+
+  -- devicon if enabled and available
+  if self.explorer.opts.renderer.icons.web_devicons.folder.enable then
+    str, hl = icons.get_icon(self.name)
+    if not self.explorer.opts.renderer.icons.web_devicons.folder.color then
+      hl = nil
+    end
+  end
+
+  -- default icon from opts
+  if not str then
+    if #self.nodes ~= 0 or self.has_children then
+      if self.open then
+        str = self.explorer.opts.renderer.icons.glyphs.folder.open
+      else
+        str = self.explorer.opts.renderer.icons.glyphs.folder.default
+      end
+    else
+      if self.open then
+        str = self.explorer.opts.renderer.icons.glyphs.folder.empty_open
+      else
+        str = self.explorer.opts.renderer.icons.glyphs.folder.empty
+      end
+    end
+  end
+
+  -- default hl
+  if not hl then
+    if self.open then
+      hl = "NvimTreeOpenedFolderIcon"
+    else
+      hl = "NvimTreeClosedFolderIcon"
+    end
+  end
+
+  return { str = str, hl = { hl } }
+end
+
+---@return HighlightedString icon
+function DirectoryNode:highlighted_name()
+  local str, hl
+
+  local name = self.name
+  local next = self.group_next
+  while next do
+    name = string.format("%s/%s", name, next.name)
+    next = next.group_next
+  end
+
+  if self.group_next and type(self.explorer.opts.renderer.group_empty) == "function" then
+    local new_name = self.explorer.opts.renderer.group_empty(name)
+    if type(new_name) == "string" then
+      name = new_name
+    else
+      notify.warn(string.format("Invalid return type for field renderer.group_empty. Expected string, got %s", type(new_name)))
+    end
+  end
+  str = string.format("%s%s", name, self.explorer.opts.renderer.add_trailing and "/" or "")
+
+  hl = "NvimTreeFolderName"
+  if vim.tbl_contains(self.explorer.opts.renderer.special_files, self.absolute_path) or vim.tbl_contains(self.explorer.opts.renderer.special_files, self.name) then
+    hl = "NvimTreeSpecialFolderName"
+  elseif self.open then
+    hl = "NvimTreeOpenedFolderName"
+  elseif #self.nodes == 0 and not self.has_children then
+    hl = "NvimTreeEmptyFolderName"
+  end
+
+  return { str = str, hl = { hl } }
+end
+
+---Create a sanitized partial copy of a node, populating children recursively.
+---@param api_nodes table<number, nvim_tree.api.Node>? optional map of uids to api node to populate
+---@return nvim_tree.api.DirectoryNode cloned
+function DirectoryNode:clone(api_nodes)
+  local clone        = Node.clone(self, api_nodes) --[[@as nvim_tree.api.DirectoryNode]]
+
+  clone.has_children = self.has_children
+  clone.nodes        = {}
+  clone.open         = self.open
+
+  local clone_child
+  for _, child in ipairs(self.nodes) do
+    clone_child = child:clone(api_nodes)
+    clone_child.parent = clone
+    table.insert(clone.nodes, clone_child)
+  end
+
+  return clone
+end
+
+return DirectoryNode

lua/nvim-tree/node/factory.lua

@@ -0,0 +1,48 @@
+local DirectoryLinkNode = require("nvim-tree.node.directory-link")
+local DirectoryNode = require("nvim-tree.node.directory")
+local FileLinkNode = require("nvim-tree.node.file-link")
+local FileNode = require("nvim-tree.node.file")
+local Watcher = require("nvim-tree.watcher")
+
+local M = {}
+
+---Factory function to create the appropriate Node
+---nil on invalid stat or invalid link target stat
+---@param args NodeArgs
+---@return Node?
+function M.create(args)
+  if not args.fs_stat then
+    return nil
+  end
+
+  if args.fs_stat.type == "directory" then
+    -- directory must be readable and enumerable
+    if vim.loop.fs_access(args.absolute_path, "R") and Watcher.is_fs_event_capable(args.absolute_path) then
+      return DirectoryNode(args)
+    end
+  elseif args.fs_stat.type == "file" then
+    return FileNode(args)
+  elseif args.fs_stat.type == "link" then
+    -- link target path and stat must resolve
+    local link_to = vim.loop.fs_realpath(args.absolute_path)
+    local link_to_stat = link_to and vim.loop.fs_stat(link_to)
+    if not link_to or not link_to_stat then
+      return
+    end
+
+    ---@cast args LinkNodeArgs
+    args.link_to        = link_to
+    args.fs_stat_target = link_to_stat
+
+    -- choose directory or file
+    if link_to_stat.type == "directory" then
+      return DirectoryLinkNode(args)
+    else
+      return FileLinkNode(args)
+    end
+  end
+
+  return nil
+end
+
+return M

lua/nvim-tree/node/file-link.lua

@@ -0,0 +1,72 @@
+local git_utils = require("nvim-tree.git.utils")
+local utils = require("nvim-tree.utils")
+
+local FileNode = require("nvim-tree.node.file")
+local LinkNode = require("nvim-tree.node.link")
+
+---@class (exact) FileLinkNode: FileNode, LinkNode
+local FileLinkNode = FileNode:extend()
+FileLinkNode:implement(LinkNode)
+
+---@class FileLinkNode
+---@overload fun(args: LinkNodeArgs): FileLinkNode
+
+---@protected
+---@param args LinkNodeArgs
+function FileLinkNode:new(args)
+  LinkNode.new(self, args)
+  FileLinkNode.super.new(self, args)
+
+  self.type = "link"
+end
+
+function FileLinkNode:destroy()
+  FileNode.destroy(self)
+end
+
+---Update the git_status of the target otherwise the link itself
+---@param parent_ignored boolean
+---@param project GitProject?
+function FileLinkNode:update_git_status(parent_ignored, project)
+  self.git_status = git_utils.git_status_file(parent_ignored, project, self.link_to, self.absolute_path)
+end
+
+---@return HighlightedString icon
+function FileLinkNode:highlighted_icon()
+  if not self.explorer.opts.renderer.icons.show.file then
+    return self:highlighted_icon_empty()
+  end
+
+  local str, hl
+
+  -- default icon from opts
+  str = self.explorer.opts.renderer.icons.glyphs.symlink
+  hl = "NvimTreeSymlinkIcon"
+
+  return { str = str, hl = { hl } }
+end
+
+---@return HighlightedString name
+function FileLinkNode:highlighted_name()
+  local str = self.name
+  if self.explorer.opts.renderer.symlink_destination then
+    local link_to = utils.path_relative(self.link_to, self.explorer.absolute_path)
+    str = string.format("%s%s%s", str, self.explorer.opts.renderer.icons.symlink_arrow, link_to)
+  end
+
+  return { str = str, hl = { "NvimTreeSymlink" } }
+end
+
+---Create a sanitized partial copy of a node
+---@param api_nodes table<number, nvim_tree.api.Node>? optional map of uids to api node to populate
+---@return nvim_tree.api.FileLinkNode cloned
+function FileLinkNode:clone(api_nodes)
+  local clone = FileNode.clone(self, api_nodes) --[[@as nvim_tree.api.FileLinkNode]]
+
+  clone.link_to = self.link_to
+  clone.fs_stat_target = self.fs_stat_target
+
+  return clone
+end
+
+return FileLinkNode

lua/nvim-tree/node/file.lua

@@ -0,0 +1,107 @@
+local git_utils = require("nvim-tree.git.utils")
+local icons = require("nvim-tree.renderer.components.devicons")
+local utils = require("nvim-tree.utils")
+
+local Node = require("nvim-tree.node")
+
+local PICTURE_MAP = {
+  jpg = true,
+  jpeg = true,
+  png = true,
+  gif = true,
+  webp = true,
+  jxl = true,
+}
+
+---@class (exact) FileNode: Node
+---@field extension string
+local FileNode = Node:extend()
+
+---@class FileNode
+---@overload fun(args: NodeArgs): FileNode
+
+---@protected
+---@param args NodeArgs
+function FileNode:new(args)
+  FileNode.super.new(self, args)
+
+  self.type       = "file"
+  self.extension  = string.match(args.name, ".?[^.]+%.(.*)") or ""
+  self.executable = utils.is_executable(args.absolute_path)
+end
+
+function FileNode:destroy()
+  Node.destroy(self)
+end
+
+---Update the GitStatus of the file
+---@param parent_ignored boolean
+---@param project GitProject?
+function FileNode:update_git_status(parent_ignored, project)
+  self.git_status = git_utils.git_status_file(parent_ignored, project, self.absolute_path, nil)
+end
+
+---@return GitXY[]?
+function FileNode:get_git_xy()
+  if not self.git_status then
+    return nil
+  end
+
+  return self.git_status.file and { self.git_status.file }
+end
+
+---@return HighlightedString icon
+function FileNode:highlighted_icon()
+  if not self.explorer.opts.renderer.icons.show.file then
+    return self:highlighted_icon_empty()
+  end
+
+  local str, hl
+
+  -- devicon if enabled and available, fallback to default
+  if self.explorer.opts.renderer.icons.web_devicons.file.enable then
+    str, hl = icons.get_icon(self.name, nil, { default = true })
+    if not self.explorer.opts.renderer.icons.web_devicons.file.color then
+      hl = nil
+    end
+  end
+
+  -- default icon from opts
+  if not str then
+    str = self.explorer.opts.renderer.icons.glyphs.default
+  end
+
+  -- default hl
+  if not hl then
+    hl = "NvimTreeFileIcon"
+  end
+
+  return { str = str, hl = { hl } }
+end
+
+---@return HighlightedString name
+function FileNode:highlighted_name()
+  local hl
+  if vim.tbl_contains(self.explorer.opts.renderer.special_files, self.absolute_path) or vim.tbl_contains(self.explorer.opts.renderer.special_files, self.name) then
+    hl = "NvimTreeSpecialFile"
+  elseif self.executable then
+    hl = "NvimTreeExecFile"
+  elseif PICTURE_MAP[self.extension] then
+    hl = "NvimTreeImageFile"
+  end
+
+  return { str = self.name, hl = { hl } }
+end
+
+---Create a sanitized partial copy of a node
+---@param api_nodes table<number, nvim_tree.api.Node>? optional map of uids to api node to populate
+---@return nvim_tree.api.FileNode cloned
+function FileNode:clone(api_nodes)
+  local clone = Node.clone(self, api_nodes) --[[@as nvim_tree.api.FileNode]]
+
+  clone.extension = self.extension
+
+  return clone
+end
+
+return FileNode

lua/nvim-tree/node/init.lua

@@ -0,0 +1,147 @@
+local Class = require("nvim-tree.classic")
+
+---Abstract Node class.
+---@class (exact) Node: Class
+---@field uid_node number vim.loop.hrtime() at construction time
+---@field type "file" | "directory" | "link" uv.fs_stat.result.type
+---@field explorer Explorer
+---@field absolute_path string
+---@field executable boolean
+---@field fs_stat uv.fs_stat.result?
+---@field git_status GitNodeStatus?
+---@field hidden boolean
+---@field name string
+---@field parent DirectoryNode?
+---@field diag_status DiagStatus?
+---@field private is_dot boolean cached is_dotfile
+local Node = Class:extend()
+
+---@class (exact) NodeArgs
+---@field explorer Explorer
+---@field parent DirectoryNode?
+---@field absolute_path string
+---@field name string
+---@field fs_stat uv.fs_stat.result?
+
+---@protected
+---@param args NodeArgs
+function Node:new(args)
+  self.uid_node      = vim.loop.hrtime()
+  self.explorer      = args.explorer
+  self.absolute_path = args.absolute_path
+  self.executable    = false
+  self.fs_stat       = args.fs_stat
+  self.git_status    = nil
+  self.hidden        = false
+  self.name          = args.name
+  self.parent        = args.parent
+  self.diag_status   = nil
+  self.is_dot        = false
+end
+
+function Node:destroy()
+end
+
+---Update the git_status of the node
+---Abstract
+---@param parent_ignored boolean
+---@param project GitProject?
+function Node:update_git_status(parent_ignored, project)
+  self:nop(parent_ignored, project)
+end
+
+---Short-format statuses
+---@return GitXY[]?
+function Node:get_git_xy()
+end
+
+---@return boolean
+function Node:is_git_ignored()
+  return self.git_status ~= nil and self.git_status.file == "!!"
+end
+
+---Node or one of its parents begins with a dot
+---@return boolean
+function Node:is_dotfile()
+  if
+    self.is_dot
+    or (self.name and (self.name:sub(1, 1) == "."))
+    or (self.parent and self.parent:is_dotfile())
+  then
+    self.is_dot = true
+    return true
+  end
+  return false
+end
+
+---Get the highest parent of grouped nodes, nil when not grouped
+---@return DirectoryNode?
+function Node:get_parent_of_group()
+  if not self.parent or not self.parent.group_next then
+    return nil
+  end
+
+  local node = self.parent
+  while node do
+    if node.parent and node.parent.group_next then
+      node = node.parent
+    else
+      return node
+    end
+  end
+end
+
+---Empty highlighted icon
+---@protected
+---@return HighlightedString icon
+function Node:highlighted_icon_empty()
+  return { str = "", hl = {} }
+end
+
+---Highlighted icon for the node
+---Empty for base Node
+---@return HighlightedString icon
+function Node:highlighted_icon()
+  return self:highlighted_icon_empty()
+end
+
+---Empty highlighted name
+---@protected
+---@return HighlightedString name
+function Node:highlighted_name_empty()
+  return { str = "", hl = {} }
+end
+
+---Highlighted name for the node
+---Empty for base Node
+---@return HighlightedString name
+function Node:highlighted_name()
+  return self:highlighted_name_empty()
+end
+
+---Create a sanitized partial copy of a node, populating children recursively.
+---@param api_nodes table<number, nvim_tree.api.Node>? optional map of uids to api node to populate
+---@return nvim_tree.api.Node cloned
+function Node:clone(api_nodes)
+  ---@type nvim_tree.api.Node
+  local clone = {
+    uid_node      = self.uid_node,
+    type          = self.type,
+    absolute_path = self.absolute_path,
+    executable    = self.executable,
+    fs_stat       = self.fs_stat,
+    git_status    = self.git_status,
+    hidden        = self.hidden,
+    name          = self.name,
+    parent        = nil,
+    diag_severity = self.diag_status and self.diag_status.value or nil,
+  }
+
+  if api_nodes then
+    api_nodes[self.uid_node] = clone
+  end
+
+  return clone
+end
+
+return Node

lua/nvim-tree/node/link.lua

@@ -0,0 +1,19 @@
+local Class = require("nvim-tree.classic")
+
+---@class (exact) LinkNode: Class
+---@field link_to string
+---@field fs_stat_target uv.fs_stat.result
+local LinkNode = Class:extend()
+
+---@class (exact) LinkNodeArgs: NodeArgs
+---@field link_to string
+---@field fs_stat_target uv.fs_stat.result
+
+---@protected
+---@param args LinkNodeArgs
+function LinkNode:new(args)
+  self.link_to = args.link_to
+  self.fs_stat_target = args.fs_stat_target
+end
+
+return LinkNode

lua/nvim-tree/node/root.lua

@@ -0,0 +1,34 @@
+local DirectoryNode = require("nvim-tree.node.directory")
+
+---@class (exact) RootNode: DirectoryNode
+local RootNode = DirectoryNode:extend()
+
+---@class RootNode
+---@overload fun(args: NodeArgs): RootNode
+
+---@protected
+---@param args NodeArgs
+function RootNode:new(args)
+  RootNode.super.new(self, args)
+end
+
+---Root is never a dotfile
+---@return boolean
+function RootNode:is_dotfile()
+  return false
+end
+
+function RootNode:destroy()
+  DirectoryNode.destroy(self)
+end
+
+---Create a sanitized partial copy of a node, populating children recursively.
+---@param api_nodes table<number, nvim_tree.api.Node>? optional map of uids to api node to populate
+---@return nvim_tree.api.RootNode cloned
+function RootNode:clone(api_nodes)
+  local clone = DirectoryNode.clone(self, api_nodes) --[[@as nvim_tree.api.RootNode]]
+
+  return clone
+end
+
+return RootNode

lua/nvim-tree/renderer/builder.lua

@@ -1,42 +1,40 @@
 local notify = require("nvim-tree.notify")
 local utils = require("nvim-tree.utils")
-local view = require("nvim-tree.view")
 
-local DecoratorBookmarks = require("nvim-tree.renderer.decorator.bookmarks")
+local Class = require("nvim-tree.classic")
-local DecoratorCopied = require("nvim-tree.renderer.decorator.copied")
+
-local DecoratorCut = require("nvim-tree.renderer.decorator.cut")
+local DirectoryNode = require("nvim-tree.node.directory")
-local DecoratorDiagnostics = require("nvim-tree.renderer.decorator.diagnostics")
+
-local DecoratorGit = require("nvim-tree.renderer.decorator.git")
+local BookmarkDecorator = require("nvim-tree.renderer.decorator.bookmarks")
-local DecoratorModified = require("nvim-tree.renderer.decorator.modified")
+local CopiedDecorator = require("nvim-tree.renderer.decorator.copied")
-local DecoratorHidden = require("nvim-tree.renderer.decorator.hidden")
+local CutDecorator = require("nvim-tree.renderer.decorator.cut")
-local DecoratorOpened = require("nvim-tree.renderer.decorator.opened")
+local DiagnosticsDecorator = require("nvim-tree.renderer.decorator.diagnostics")
+local GitDecorator = require("nvim-tree.renderer.decorator.git")
+local HiddenDecorator = require("nvim-tree.renderer.decorator.hidden")
+local ModifiedDecorator = require("nvim-tree.renderer.decorator.modified")
+local OpenDecorator = require("nvim-tree.renderer.decorator.opened")
+local UserDecorator = require("nvim-tree.renderer.decorator.user")
 
 local pad = require("nvim-tree.renderer.components.padding")
-local icons = require("nvim-tree.renderer.components.icons")
 
-local PICTURE_MAP = {
+---@alias HighlightedString nvim_tree.api.HighlightedString
-  jpg = true,
+
-  jpeg = true,
+-- Builtin Decorators
-  png = true,
+---@type table<nvim_tree.api.decorator.Name, Decorator>
-  gif = true,
+local BUILTIN_DECORATORS = {
-  webp = true,
+  Git = GitDecorator,
-  jxl = true,
+  Open = OpenDecorator,
+  Hidden = HiddenDecorator,
+  Modified = ModifiedDecorator,
+  Bookmark = BookmarkDecorator,
+  Diagnostics = DiagnosticsDecorator,
+  Copied = CopiedDecorator,
+  Cut = CutDecorator,
 }
 
----@class (exact) HighlightedString
----@field str string
----@field hl string[]
-
----@class (exact) AddHighlightArgs
----@field group string[]
----@field line number
----@field col_start number
----@field col_end number
-
 ---@class (exact) Builder
----@field private __index? table
 ---@field lines string[] includes icons etc.
----@field hl_args AddHighlightArgs[] line highlights
+---@field hl_range_args HighlightRangeArgs[] highlights for lines
 ---@field signs string[] line signs
 ---@field extmarks table[] extra marks for right icon placement
 ---@field virtual_lines table[] virtual lines for hidden count display
@@ -47,43 +45,52 @@ local PICTURE_MAP = {
 ---@field private markers boolean[] indent markers
 ---@field private decorators Decorator[]
 ---@field private hidden_display fun(node: Node): string|nil
-local Builder = {}
+---@field private api_nodes table<number, nvim_tree.api.Node>? optional map of uids to api node for user decorators
+local Builder = Class:extend()
 
----@param opts table user options
+---@class Builder
----@param explorer Explorer
+---@overload fun(args: BuilderArgs): Builder
----@return Builder
-function Builder:new(opts, explorer)
-  ---@type Builder
-  local o = {
-    opts = opts,
-    explorer = explorer,
-    index = 0,
-    depth = 0,
-    hl_args = {},
-    combined_groups = {},
-    lines = {},
-    markers = {},
-    signs = {},
-    extmarks = {},
-    virtual_lines = {},
-    decorators = {
-      -- priority order
-      DecoratorCut:new(opts, explorer),
-      DecoratorCopied:new(opts, explorer),
-      DecoratorDiagnostics:new(opts, explorer),
-      DecoratorBookmarks:new(opts, explorer),
-      DecoratorModified:new(opts, explorer),
-      DecoratorHidden:new(opts, explorer),
-      DecoratorOpened:new(opts, explorer),
-      DecoratorGit:new(opts, explorer),
-    },
-    hidden_display = Builder:setup_hidden_display_function(opts),
-  }
 
-  setmetatable(o, self)
+---@class (exact) BuilderArgs
-  self.__index = self
+---@field explorer Explorer
 
-  return o
+---@protected
+---@param args BuilderArgs
+function Builder:new(args)
+  self.explorer        = args.explorer
+  self.index           = 0
+  self.depth           = 0
+  self.hl_range_args   = {}
+  self.combined_groups = {}
+  self.lines           = {}
+  self.markers         = {}
+  self.signs           = {}
+  self.extmarks        = {}
+  self.virtual_lines   = {}
+  self.decorators      = {}
+  self.hidden_display  = Builder:setup_hidden_display_function(self.explorer.opts)
+
+  -- instantiate all the builtin and user decorator instances
+  local builtin, user
+  for _, d in ipairs(self.explorer.opts.renderer.decorators) do
+    ---@type Decorator
+    builtin = BUILTIN_DECORATORS[d]
+
+    ---@type UserDecorator
+    user = type(d) == "table" and type(d.as) == "function" and d:as(UserDecorator)
+
+    if builtin then
+      table.insert(self.decorators, builtin({ explorer = self.explorer }))
+    elseif user then
+      table.insert(self.decorators, user())
+
+      -- clone user nodes once
+      if not self.api_nodes then
+        self.api_nodes = {}
+        self.explorer:clone(self.api_nodes)
+      end
+    end
+  end
 end
 
 ---Insert ranged highlight groups into self.highlights
@@ -92,28 +99,9 @@ end
 ---@param start number
 ---@param end_ number|nil
 function Builder:insert_highlight(groups, start, end_)
-  table.insert(self.hl_args, { groups, self.index, start, end_ or -1 })
+  for _, higroup in ipairs(groups) do
-end
+    table.insert(self.hl_range_args, { higroup = higroup, start = { self.index, start, }, finish = { self.index, end_ or -1, } })
-
----@private
-function Builder:get_folder_name(node)
-  local name = node.name
-  local next = node.group_next
-  while next do
-    name = string.format("%s/%s", name, next.name)
-    next = next.group_next
   end
-
-  if node.group_next and type(self.opts.renderer.group_empty) == "function" then
-    local new_name = self.opts.renderer.group_empty(name)
-    if type(new_name) == "string" then
-      name = new_name
-    else
-      notify.warn(string.format("Invalid return type for field renderer.group_empty. Expected string, got %s", type(new_name)))
-    end
-  end
-
-  return string.format("%s%s", name, self.opts.renderer.add_trailing and "/" or "")
 end
 
 ---@private
@@ -136,78 +124,6 @@ function Builder:unwrap_highlighted_strings(highlighted_strings)
   return string
 end
 
----@private
----@param node table
----@return HighlightedString icon
----@return HighlightedString name
-function Builder:build_folder(node)
-  local has_children = #node.nodes ~= 0 or node.has_children
-  local icon, icon_hl = icons.get_folder_icon(node, has_children)
-  local foldername = self:get_folder_name(node)
-
-  if #icon > 0 and icon_hl == nil then
-    if node.open then
-      icon_hl = "NvimTreeOpenedFolderIcon"
-    else
-      icon_hl = "NvimTreeClosedFolderIcon"
-    end
-  end
-
-  local foldername_hl = "NvimTreeFolderName"
-  if node.link_to and self.opts.renderer.symlink_destination then
-    local arrow = icons.i.symlink_arrow
-    local link_to = utils.path_relative(node.link_to, self.explorer.absolute_path)
-    foldername = string.format("%s%s%s", foldername, arrow, link_to)
-    foldername_hl = "NvimTreeSymlinkFolderName"
-  elseif
-    vim.tbl_contains(self.opts.renderer.special_files, node.absolute_path) or vim.tbl_contains(self.opts.renderer.special_files, node.name)
-  then
-    foldername_hl = "NvimTreeSpecialFolderName"
-  elseif node.open then
-    foldername_hl = "NvimTreeOpenedFolderName"
-  elseif not has_children then
-    foldername_hl = "NvimTreeEmptyFolderName"
-  end
-
-  return { str = icon, hl = { icon_hl } }, { str = foldername, hl = { foldername_hl } }
-end
-
----@private
----@param node table
----@return HighlightedString icon
----@return HighlightedString name
-function Builder:build_symlink(node)
-  local icon = icons.i.symlink
-  local arrow = icons.i.symlink_arrow
-  local symlink_formatted = node.name
-  if self.opts.renderer.symlink_destination then
-    local link_to = utils.path_relative(node.link_to, self.explorer.absolute_path)
-    symlink_formatted = string.format("%s%s%s", symlink_formatted, arrow, link_to)
-  end
-
-  return { str = icon, hl = { "NvimTreeSymlinkIcon" } }, { str = symlink_formatted, hl = { "NvimTreeSymlink" } }
-end
-
----@private
----@param node table
----@return HighlightedString icon
----@return HighlightedString name
-function Builder:build_file(node)
-  local hl
-  if
-    vim.tbl_contains(self.opts.renderer.special_files, node.absolute_path) or vim.tbl_contains(self.opts.renderer.special_files, node.name)
-  then
-    hl = "NvimTreeSpecialFile"
-  elseif node.executable then
-    hl = "NvimTreeExecFile"
-  elseif PICTURE_MAP[node.extension] then
-    hl = "NvimTreeImageFile"
-  end
-
-  local icon, hl_group = icons.get_file_icon(node.name, node.extension)
-  return { str = icon, hl = { hl_group } }, { str = node.name, hl = { hl } }
-end
-
 ---@private
 ---@param indent_markers HighlightedString[]
 ---@param arrows HighlightedString[]|nil
@@ -218,12 +134,12 @@ end
 function Builder:format_line(indent_markers, arrows, icon, name, node)
   local added_len = 0
   local function add_to_end(t1, t2)
-    if not t2 then
+    if not t2 or vim.tbl_isempty(t2) then
       return
     end
     for _, v in ipairs(t2) do
       if added_len > 0 then
-        table.insert(t1, { str = self.opts.renderer.icons.padding })
+        table.insert(t1, { str = self.explorer.opts.renderer.icons.padding.icon })
       end
       table.insert(t1, v)
     end
@@ -236,22 +152,25 @@ function Builder:format_line(indent_markers, arrows, icon, name, node)
     end
   end
 
+  -- use the api node for user decorators
+  local api_node = self.api_nodes and self.api_nodes[node.uid_node] --[[@as Node]]
+
   local line = { indent_markers, arrows }
   add_to_end(line, { icon })
 
-  for i = #self.decorators, 1, -1 do
+  for _, d in ipairs(self.decorators) do
-    add_to_end(line, self.decorators[i]:icons_before(node))
+    add_to_end(line, d:icons_before(not d:is(UserDecorator) and node or api_node))
   end
 
   add_to_end(line, { name })
 
-  for i = #self.decorators, 1, -1 do
+  for _, d in ipairs(self.decorators) do
-    add_to_end(line, self.decorators[i]:icons_after(node))
+    add_to_end(line, d:icons_after(not d:is(UserDecorator) and node or api_node))
   end
 
   local rights = {}
-  for i = #self.decorators, 1, -1 do
+  for _, d in ipairs(self.decorators) do
-    add_to_end(rights, self.decorators[i]:icons_right_align(node))
+    add_to_end(rights, d:icons_right_align(not d:is(UserDecorator) and node or api_node))
   end
   if #rights > 0 then
     self.extmarks[self.index] = rights
@@ -263,10 +182,14 @@ end
 ---@private
 ---@param node Node
 function Builder:build_signs(node)
+  -- use the api node for user decorators
+  local api_node = self.api_nodes and self.api_nodes[node.uid_node] --[[@as Node]]
+
   -- first in priority order
-  local sign_name
+  local d, sign_name
-  for _, d in ipairs(self.decorators) do
+  for i = #self.decorators, 1, -1 do
-    sign_name = d:sign_name(node)
+    d = self.decorators[i]
+    sign_name = d:sign_name(not d:is(UserDecorator) and node or api_node)
     if sign_name then
       self.signs[self.index] = sign_name
       break
@@ -302,78 +225,78 @@ function Builder:create_combined_group(groups)
   return combined_name
 end
 
----Calculate highlight group for icon and name. A combined highlight group will be created
+---Calculate decorated icon and name for a node.
----when there is more than one highlight.
+---A combined highlight group will be created when there is more than one highlight.
 ---A highlight group is always calculated and upserted for the case of highlights changing.
 ---@private
 ---@param node Node
----@return string|nil icon_hl_group
+---@return HighlightedString icon
----@return string|nil name_hl_group
+---@return HighlightedString name
-function Builder:add_highlights(node)
+function Builder:icon_name_decorated(node)
-  -- result
+  -- use the api node for user decorators
-  local icon_hl_group, name_hl_group
+  local api_node = self.api_nodes and self.api_nodes[node.uid_node] --[[@as Node]]
 
-  -- calculate all groups
+  -- base case
+  local icon = node:highlighted_icon()
+  local name = node:highlighted_name()
+
+  -- calculate node icon and all decorated highlight groups
   local icon_groups = {}
   local name_groups = {}
-  local d, icon, name
+  local hl_icon, hl_name
-  for i = #self.decorators, 1, -1 do
+  for _, d in ipairs(self.decorators) do
-    d = self.decorators[i]
+    -- maybe overridde icon
-    icon, name = d:groups_icon_name(node)
+    icon = d:icon_node((not d:is(UserDecorator) and node or api_node)) or icon
-    table.insert(icon_groups, icon)
+
-    table.insert(name_groups, name)
+    hl_icon, hl_name = d:highlight_group_icon_name((not d:is(UserDecorator) and node or api_node))
+
+    table.insert(icon_groups, hl_icon)
+    table.insert(name_groups, hl_name)
   end
 
-  -- one or many icon groups
+  -- add one or many icon groups
   if #icon_groups > 1 then
-    icon_hl_group = self:create_combined_group(icon_groups)
+    table.insert(icon.hl, self:create_combined_group(icon_groups))
   else
-    icon_hl_group = icon_groups[1]
+    table.insert(icon.hl, icon_groups[1])
   end
 
-  -- one or many name groups
+  -- add one or many name groups
   if #name_groups > 1 then
-    name_hl_group = self:create_combined_group(name_groups)
+    table.insert(name.hl, self:create_combined_group(name_groups))
   else
-    name_hl_group = name_groups[1]
+    table.insert(name.hl, name_groups[1])
   end
 
-  return icon_hl_group, name_hl_group
+  return icon, name
 end
 
+---Insert node line into self.lines, calling Builder:build_lines for each directory
 ---@private
+---@param node Node
+---@param idx integer line number starting at 1
+---@param num_children integer of node
 function Builder:build_line(node, idx, num_children)
   -- various components
   local indent_markers = pad.get_indent_markers(self.depth, idx, num_children, node, self.markers)
   local arrows = pad.get_arrows(node)
 
-  -- main components
+  -- decorated node icon and name
-  local is_folder = node.nodes ~= nil
+  local icon, name = self:icon_name_decorated(node)
-  local is_symlink = node.link_to ~= nil
-  local icon, name
-  if is_folder then
-    icon, name = self:build_folder(node)
-  elseif is_symlink then
-    icon, name = self:build_symlink(node)
-  else
-    icon, name = self:build_file(node)
-  end
-
-  -- highighting
-  local icon_hl_group, name_hl_group = self:add_highlights(node)
-  table.insert(icon.hl, icon_hl_group)
-  table.insert(name.hl, name_hl_group)
 
   local line = self:format_line(indent_markers, arrows, icon, name, node)
   table.insert(self.lines, self:unwrap_highlighted_strings(line))
 
   self.index = self.index + 1
 
-  node = require("nvim-tree.lib").get_last_group_node(node)
+  local dir = node:as(DirectoryNode)
-  if node.open then
+  if dir then
-    self.depth = self.depth + 1
+    dir = dir:last_group_node()
-    self:build_lines(node)
+    if dir.open then
-    self.depth = self.depth - 1
+      self.depth = self.depth + 1
+      self:build_lines(dir)
+      self.depth = self.depth - 1
+    end
   end
 end
 
@@ -386,7 +309,7 @@ function Builder:add_hidden_count_string(node, idx, num_children)
   local hidden_count_string = self.hidden_display(node.hidden_stats)
   if hidden_count_string and hidden_count_string ~= "" then
     local indent_markers = pad.get_indent_markers(self.depth, idx or 0, num_children or 0, node, self.markers, 1)
-    local indent_width = self.opts.renderer.indent_width
+    local indent_width = self.explorer.opts.renderer.indent_width
 
     local indent_padding = string.rep(" ", indent_width)
     local indent_string = indent_padding .. indent_markers.str
@@ -403,8 +326,11 @@ function Builder:add_hidden_count_string(node, idx, num_children)
   end
 end
 
+---Number of visible nodes
 ---@private
-function Builder:get_nodes_number(nodes)
+---@param nodes Node[]
+---@return integer
+function Builder:num_visible(nodes)
   if not self.explorer.live_filter.filter then
     return #nodes
   end
@@ -423,7 +349,7 @@ function Builder:build_lines(node)
   if not node then
     node = self.explorer
   end
-  local num_children = self:get_nodes_number(node.nodes)
+  local num_children = self:num_visible(node.nodes)
   local idx = 1
   for _, n in ipairs(node.nodes) do
     if not n.hidden then
@@ -452,19 +378,19 @@ end
 
 ---@private
 function Builder:build_header()
-  if view.is_root_folder_visible(self.explorer.absolute_path) then
+  if self.explorer.view:is_root_folder_visible(self.explorer.absolute_path) then
-    local root_name = self:format_root_name(self.opts.renderer.root_folder_label)
+    local root_name = self:format_root_name(self.explorer.opts.renderer.root_folder_label)
     table.insert(self.lines, root_name)
     self:insert_highlight({ "NvimTreeRootFolder" }, 0, string.len(root_name))
     self.index = 1
   end
 
   if self.explorer.live_filter.filter then
-    local filter_line = string.format("%s/%s/", self.opts.live_filter.prefix, self.explorer.live_filter.filter)
+    local filter_line = string.format("%s/%s/", self.explorer.opts.live_filter.prefix, self.explorer.live_filter.filter)
     table.insert(self.lines, filter_line)
-    local prefix_length = string.len(self.opts.live_filter.prefix)
+    local prefix_length = string.len(self.explorer.opts.live_filter.prefix)
-    self:insert_highlight({ "NvimTreeLiveFilterPrefix" }, 0, prefix_length)
+    self:insert_highlight({ "NvimTreeLiveFilterPrefix" }, 0,             prefix_length)
-    self:insert_highlight({ "NvimTreeLiveFilterValue" }, prefix_length, string.len(filter_line))
+    self:insert_highlight({ "NvimTreeLiveFilterValue" },  prefix_length, string.len(filter_line))
     self.index = self.index + 1
   end
 end
@@ -487,7 +413,7 @@ function Builder:build()
   return self
 end
 
----TODO refactor back to function; this was left here to reduce PR noise
+---@private
 ---@param opts table
 ---@return fun(node: Node): string|nil
 function Builder:setup_hidden_display_function(opts)
@@ -512,11 +438,11 @@ function Builder:setup_hidden_display_function(opts)
       -- In case of missing field such as live_filter we zero it, otherwise keep field as is
       hidden_stats = vim.tbl_deep_extend("force", {
         live_filter = 0,
-        git = 0,
+        git         = 0,
-        buf = 0,
+        buf         = 0,
-        dotfile = 0,
+        dotfile     = 0,
-        custom = 0,
+        custom      = 0,
-        bookmark = 0,
+        bookmark    = 0,
       }, hidden_stats or {})
 
       local ok, result = pcall(hidden_display, hidden_stats)

lua/nvim-tree/renderer/components/devicons.lua

@@ -0,0 +1,35 @@
+---@alias devicons_get_icon fun(name: string, ext: string?, opts: table?): string?, string?
+---@alias devicons_setup fun(opts: table?)
+
+---@class (strict) DevIcons?
+---@field setup devicons_setup
+---@field get_icon devicons_get_icon
+local devicons
+
+local M = {}
+
+---Wrapper around nvim-web-devicons, nils if devicons not available
+---@type devicons_get_icon
+function M.get_icon(name, ext, opts)
+  if devicons then
+    return devicons.get_icon(name, ext, opts)
+  else
+    return nil, nil
+  end
+end
+
+---Attempt to use nvim-web-devicons if present and enabled for file or folder
+---@param opts table
+function M.setup(opts)
+  if opts.renderer.icons.show.file or opts.renderer.icons.show.folder then
+    local ok, di = pcall(require, "nvim-web-devicons")
+    if ok then
+      devicons = di --[[@as DevIcons]]
+
+      -- does nothing if already called i.e. doesn't clobber previous user setup
+      devicons.setup()
+    end
+  end
+end
+
+return M

lua/nvim-tree/renderer/components/diagnostics.lua

@@ -1,93 +0,0 @@
-local HL_POSITION = require("nvim-tree.enum").HL_POSITION
-local diagnostics = require("nvim-tree.diagnostics")
-
-local M = {
-  -- highlight strings for the icons
-  HS_ICON = {},
-
-  -- highlight groups for HL
-  HG_FILE = {},
-  HG_FOLDER = {},
-
-  -- position for HL
-  HL_POS = HL_POSITION.none,
-}
-
----Diagnostics highlight group and position when highlight_diagnostics.
----@param node table
----@return HL_POSITION position none when no status
----@return string|nil group only when status
-function M.get_highlight(node)
-  if not node or M.HL_POS == HL_POSITION.none then
-    return HL_POSITION.none, nil
-  end
-
-  local group
-  local diag_status = diagnostics.get_diag_status(node)
-  if node.nodes then
-    group = M.HS_FOLDER[diag_status and diag_status.value]
-  else
-    group = M.HS_FILE[diag_status and diag_status.value]
-  end
-
-  if group then
-    return M.HL_POS, group
-  else
-    return HL_POSITION.none, nil
-  end
-end
-
----diagnostics icon if there is a status
----@param node table
----@return HighlightedString|nil modified icon
-function M.get_icon(node)
-  if node and M.config.diagnostics.enable and M.config.renderer.icons.show.diagnostics then
-    local diag_status = diagnostics.get_diag_status(node)
-    return M.ICON[diag_status and diag_status.value]
-  end
-end
-
-function M.setup(opts)
-  M.config = {
-    diagnostics = opts.diagnostics,
-    renderer = opts.renderer,
-  }
-
-  if opts.diagnostics.enable and opts.renderer.highlight_diagnostics then
-    M.HL_POS = HL_POSITION[opts.renderer.highlight_diagnostics]
-  end
-
-  M.HG_FILE[vim.diagnostic.severity.ERROR] = "NvimTreeDiagnosticErrorFileHL"
-  M.HG_FILE[vim.diagnostic.severity.WARN] = "NvimTreeDiagnosticWarningFileHL"
-  M.HG_FILE[vim.diagnostic.severity.INFO] = "NvimTreeDiagnosticInfoFileHL"
-  M.HG_FILE[vim.diagnostic.severity.HINT] = "NvimTreeDiagnosticHintFileHL"
-
-  M.HG_FOLDER[vim.diagnostic.severity.ERROR] = "NvimTreeDiagnosticErrorFolderHL"
-  M.HG_FOLDER[vim.diagnostic.severity.WARN] = "NvimTreeDiagnosticWarningFolderHL"
-  M.HG_FOLDER[vim.diagnostic.severity.INFO] = "NvimTreeDiagnosticInfoFolderHL"
-  M.HG_FOLDER[vim.diagnostic.severity.HINT] = "NvimTreeDiagnosticHintFolderHL"
-
-  M.HS_ICON[vim.diagnostic.severity.ERROR] = {
-    str = M.config.diagnostics.icons.error,
-    hl = { "NvimTreeDiagnosticErrorIcon" },
-  }
-
-  M.HS_ICON[vim.diagnostic.severity.WARN] = {
-    str = M.config.diagnostics.icons.warning,
-    hl = { "NvimTreeDiagnosticWarningIcon" },
-  }
-  M.HS_ICON[vim.diagnostic.severity.INFO] = {
-    str = M.config.diagnostics.icons.info,
-    hl = { "NvimTreeDiagnosticInfoIcon" },
-  }
-  M.HS_ICON[vim.diagnostic.severity.HINT] = {
-    str = M.config.diagnostics.icons.hint,
-    hl = { "NvimTreeDiagnosticHintIcon" },
-  }
-
-  for _, i in ipairs(M.HS_ICON) do
-    vim.fn.sign_define(i.hl[1], { text = i.str, texthl = i.hl[1] })
-  end
-end
-
-return M

lua/nvim-tree/renderer/components/full-name.lua

@@ -1,7 +1,8 @@
-local M = {}
+local appearance = require("nvim-tree.appearance")
-
 local utils = require("nvim-tree.utils")
 
+local M = {}
+
 local function hide(win)
   if win then
     if vim.api.nvim_win_is_valid(win) then
@@ -32,7 +33,7 @@ local function effective_win_width()
   return win_width - win_info[1].textoff
 end
 
-local function show()
+local function show(opts)
   local line_nr = vim.api.nvim_win_get_cursor(0)[1]
   if vim.wo.wrap then
     return
@@ -52,19 +53,26 @@ local function show()
   local text_width = vim.fn.strdisplaywidth(vim.fn.substitute(line, "[^[:print:]]*$", "", "g"))
   local win_width = effective_win_width()
 
+  -- windows width reduced by right aligned icons
+  local icon_ns_id = vim.api.nvim_get_namespaces()["NvimTreeExtmarks"]
+  local icon_extmarks = vim.api.nvim_buf_get_extmarks(0, icon_ns_id, { line_nr - 1, 0 }, { line_nr - 1, -1 }, { details = true })
+  win_width = win_width - utils.extmarks_length(icon_extmarks)
+
   if text_width < win_width then
     return
   end
 
   M.popup_win = vim.api.nvim_open_win(vim.api.nvim_create_buf(false, false), false, {
-    relative = "win",
+    relative  = "win",
-    row = 0,
+    row       = 0,
-    bufpos = { vim.api.nvim_win_get_cursor(0)[1] - 1, 0 },
+    bufpos    = { vim.api.nvim_win_get_cursor(0)[1] - 1, 0 },
-    width = math.min(text_width, vim.o.columns - 2),
+    width     = math.min(text_width, vim.o.columns - 2),
-    height = 1,
+    height    = 1,
     noautocmd = true,
-    style = "minimal",
+    style     = "minimal",
+    border    = "none"
   })
+  vim.wo[M.popup_win].winhl = appearance.WIN_HL
 
   local ns_id = vim.api.nvim_get_namespaces()["NvimTreeHighlights"]
   local extmarks = vim.api.nvim_buf_get_extmarks(0, ns_id, { line_nr - 1, 0 }, { line_nr - 1, -1 }, { details = true })
@@ -79,9 +87,18 @@ local function show()
       ---@type vim.api.keyset.extmark_details
       local details = extmark[4]
 
-      vim.api.nvim_buf_add_highlight(0, ns_id, details.hl_group, 0, col, details.end_col)
+      if type(details) == "table" then
+        if vim.fn.has("nvim-0.11") == 1 and vim.hl and vim.hl.range then
+          vim.hl.range(0, ns_id, details.hl_group, { 0, col }, { 0, details.end_col, }, {})
+        else
+          vim.api.nvim_buf_add_highlight(0, ns_id, details.hl_group, 0, col, details.end_col) ---@diagnostic disable-line: deprecated
+        end
+      end
+    end
+    vim.cmd([[ setlocal nowrap noswapfile nobuflisted buftype=nofile bufhidden=wipe ]])
+    if opts.view.cursorline then
+      vim.cmd([[ setlocal cursorline cursorlineopt=both ]])
     end
-    vim.cmd([[ setlocal nowrap cursorline noswapfile nobuflisted buftype=nofile bufhidden=hide ]])
   end)
 end
 
@@ -107,7 +124,7 @@ M.setup = function(opts)
     pattern = { "NvimTree_*" },
     callback = function()
       if utils.is_nvim_tree_buf(0) then
-        show()
+        show(opts)
       end
     end,
   })

lua/nvim-tree/renderer/components/icons.lua

@@ -1,113 +0,0 @@
-local M = { i = {} }
-
-local function config_symlinks()
-  M.i.symlink = #M.config.glyphs.symlink > 0 and M.config.glyphs.symlink or ""
-  M.i.symlink_arrow = M.config.symlink_arrow
-end
-
-local function empty()
-  return ""
-end
-
-local function get_folder_icon_default(node, has_children)
-  local is_symlink = node.links_to ~= nil
-  local n
-  if is_symlink and node.open then
-    n = M.config.glyphs.folder.symlink_open
-  elseif is_symlink then
-    n = M.config.glyphs.folder.symlink
-  elseif node.open then
-    if has_children then
-      n = M.config.glyphs.folder.open
-    else
-      n = M.config.glyphs.folder.empty_open
-    end
-  else
-    if has_children then
-      n = M.config.glyphs.folder.default
-    else
-      n = M.config.glyphs.folder.empty
-    end
-  end
-  return n, nil
-end
-
-local function get_folder_icon_webdev(node, has_children)
-  local icon, hl_group = M.devicons.get_icon(node.name, node.extension)
-  if not M.config.web_devicons.folder.color then
-    hl_group = nil
-  end
-  if icon ~= nil then
-    return icon, hl_group
-  else
-    return get_folder_icon_default(node, has_children)
-  end
-end
-
-local function get_file_icon_default()
-  local hl_group = "NvimTreeFileIcon"
-  local icon = M.config.glyphs.default
-  if #icon > 0 then
-    return icon, hl_group
-  else
-    return ""
-  end
-end
-
-local function get_file_icon_webdev(fname, extension)
-  local icon, hl_group = M.devicons.get_icon(fname, extension)
-  if not M.config.web_devicons.file.color then
-    hl_group = "NvimTreeFileIcon"
-  end
-  if icon and hl_group ~= "DevIconDefault" then
-    return icon, hl_group
-  elseif string.match(extension, "%.(.*)") then
-    -- If there are more extensions to the file, try to grab the icon for them recursively
-    return get_file_icon_webdev(fname, string.match(extension, "%.(.*)"))
-  else
-    local devicons_default = M.devicons.get_default_icon()
-    if devicons_default and type(devicons_default.icon) == "string" and type(devicons_default.name) == "string" then
-      return devicons_default.icon, "DevIcon" .. devicons_default.name
-    else
-      return get_file_icon_default()
-    end
-  end
-end
-
-local function config_file_icon()
-  if M.config.show.file then
-    if M.devicons and M.config.web_devicons.file.enable then
-      M.get_file_icon = get_file_icon_webdev
-    else
-      M.get_file_icon = get_file_icon_default
-    end
-  else
-    M.get_file_icon = empty
-  end
-end
-
-local function config_folder_icon()
-  if M.config.show.folder then
-    if M.devicons and M.config.web_devicons.folder.enable then
-      M.get_folder_icon = get_folder_icon_webdev
-    else
-      M.get_folder_icon = get_folder_icon_default
-    end
-  else
-    M.get_folder_icon = empty
-  end
-end
-
-function M.reset_config()
-  config_symlinks()
-  config_file_icon()
-  config_folder_icon()
-end
-
-function M.setup(opts)
-  M.config = opts.renderer.icons
-
-  M.devicons = pcall(require, "nvim-web-devicons") and require("nvim-web-devicons") or nil
-end
-
-return M

lua/nvim-tree/renderer/components/init.lua

@@ -1,14 +1,12 @@
 local M = {}
 
-M.diagnostics = require("nvim-tree.renderer.components.diagnostics")
 M.full_name = require("nvim-tree.renderer.components.full-name")
-M.icons = require("nvim-tree.renderer.components.icons")
+M.devicons = require("nvim-tree.renderer.components.devicons")
 M.padding = require("nvim-tree.renderer.components.padding")
 
 function M.setup(opts)
-  M.diagnostics.setup(opts)
   M.full_name.setup(opts)
-  M.icons.setup(opts)
+  M.devicons.setup(opts)
   M.padding.setup(opts)
 end
 

lua/nvim-tree/renderer/components/padding.lua

@@ -1,3 +1,5 @@
+local DirectoryNode = require("nvim-tree.node.directory")
+
 local M = {}
 
 local function check_siblings_for_folder(node, with_arrows)
@@ -59,9 +61,10 @@ end
 ---@param depth integer
 ---@param idx integer
 ---@param nodes_number integer
----@param node table
+---@param node Node
 ---@param markers table
----@return HighlightedString[]
+---@param early_stop integer?
+---@return HighlightedString
 function M.get_indent_markers(depth, idx, nodes_number, node, markers, early_stop)
   local str = ""
 
@@ -79,7 +82,7 @@ function M.get_indent_markers(depth, idx, nodes_number, node, markers, early_sto
   return { str = str, hl = { "NvimTreeIndentMarker" } }
 end
 
----@param node table
+---@param node Node
 ---@return HighlightedString[]|nil
 function M.get_arrows(node)
   if not M.config.icons.show.folder_arrow then
@@ -89,17 +92,18 @@ function M.get_arrows(node)
   local str
   local hl = "NvimTreeFolderArrowClosed"
 
-  if node.nodes then
+  local dir = node:as(DirectoryNode)
-    if node.open then
+  if dir then
-      str = M.config.icons.glyphs.folder["arrow_open"] .. " "
+    if dir.open then
+      str = M.config.icons.glyphs.folder["arrow_open"] .. M.config.icons.padding.folder_arrow
       hl = "NvimTreeFolderArrowOpen"
     else
-      str = M.config.icons.glyphs.folder["arrow_closed"] .. " "
+      str = M.config.icons.glyphs.folder["arrow_closed"] .. M.config.icons.padding.folder_arrow
     end
   elseif M.config.indent_markers.enable then
     str = ""
   else
-    str = "  "
+    str = " " .. string.rep(" ", #M.config.icons.padding.folder_arrow)
   end
 
   return { str = str, hl = { hl } }

lua/nvim-tree/renderer/decorator/bookmarks.lua

@@ -1,39 +1,35 @@
-local HL_POSITION = require("nvim-tree.enum").HL_POSITION
-local ICON_PLACEMENT = require("nvim-tree.enum").ICON_PLACEMENT
-
 local Decorator = require("nvim-tree.renderer.decorator")
 
----@class (exact) DecoratorBookmarks: Decorator
+---@class (exact) BookmarkDecorator: Decorator
----@field icon HighlightedString
+---@field private explorer Explorer
-local DecoratorBookmarks = Decorator:new()
+---@field private icon HighlightedString?
+local BookmarkDecorator = Decorator:extend()
 
----@param opts table
+---@class BookmarkDecorator
----@param explorer Explorer
+---@overload fun(args: DecoratorArgs): BookmarkDecorator
----@return DecoratorBookmarks
-function DecoratorBookmarks:new(opts, explorer)
-  local o = Decorator.new(self, {
-    explorer = explorer,
-    enabled = true,
-    hl_pos = HL_POSITION[opts.renderer.highlight_bookmarks] or HL_POSITION.none,
-    icon_placement = ICON_PLACEMENT[opts.renderer.icons.bookmarks_placement] or ICON_PLACEMENT.none,
-  })
-  ---@cast o DecoratorBookmarks
 
-  if opts.renderer.icons.show.bookmarks then
+---@protected
-    o.icon = {
+---@param args DecoratorArgs
-      str = opts.renderer.icons.glyphs.bookmark,
+function BookmarkDecorator:new(args)
+  self.explorer        = args.explorer
+
+  self.enabled         = true
+  self.highlight_range = self.explorer.opts.renderer.highlight_bookmarks or "none"
+  self.icon_placement  = self.explorer.opts.renderer.icons.bookmarks_placement or "none"
+
+  if self.explorer.opts.renderer.icons.show.bookmarks then
+    self.icon = {
+      str = self.explorer.opts.renderer.icons.glyphs.bookmark,
       hl = { "NvimTreeBookmarkIcon" },
     }
-    o:define_sign(o.icon)
+    self:define_sign(self.icon)
   end
-
-  return o
 end
 
 ---Bookmark icon: renderer.icons.show.bookmarks and node is marked
 ---@param node Node
----@return HighlightedString[]|nil icons
+---@return HighlightedString[]? icons
-function DecoratorBookmarks:calculate_icons(node)
+function BookmarkDecorator:icons(node)
   if self.explorer.marks:get(node) then
     return { self.icon }
   end
@@ -41,11 +37,11 @@ end
 
 ---Bookmark highlight: renderer.highlight_bookmarks and node is marked
 ---@param node Node
----@return string|nil group
+---@return string? highlight_group
-function DecoratorBookmarks:calculate_highlight(node)
+function BookmarkDecorator:highlight_group(node)
-  if self.hl_pos ~= HL_POSITION.none and self.explorer.marks:get(node) then
+  if self.highlight_range ~= "none" and self.explorer.marks:get(node) then
     return "NvimTreeBookmarkHL"
   end
 end
 
-return DecoratorBookmarks
+return BookmarkDecorator

lua/nvim-tree/renderer/decorator/copied.lua

@@ -1,35 +1,29 @@
-local HL_POSITION = require("nvim-tree.enum").HL_POSITION
-local ICON_PLACEMENT = require("nvim-tree.enum").ICON_PLACEMENT
-
 local Decorator = require("nvim-tree.renderer.decorator")
 
----@class (exact) DecoratorCopied: Decorator
+---@class (exact) CopiedDecorator: Decorator
----@field enabled boolean
+---@field private explorer Explorer
----@field icon HighlightedString|nil
+local CopiedDecorator = Decorator:extend()
-local DecoratorCopied = Decorator:new()
 
----@param opts table
+---@class CopiedDecorator
----@param explorer Explorer
+---@overload fun(args: DecoratorArgs): CopiedDecorator
----@return DecoratorCopied
-function DecoratorCopied:new(opts, explorer)
-  local o = Decorator.new(self, {
-    explorer = explorer,
-    enabled = true,
-    hl_pos = HL_POSITION[opts.renderer.highlight_clipboard] or HL_POSITION.none,
-    icon_placement = ICON_PLACEMENT.none,
-  })
-  ---@cast o DecoratorCopied
 
-  return o
+---@protected
+---@param args DecoratorArgs
+function CopiedDecorator:new(args)
+  self.explorer   = args.explorer
+
+  self.enabled         = true
+  self.highlight_range = self.explorer.opts.renderer.highlight_clipboard or "none"
+  self.icon_placement  = "none"
 end
 
 ---Copied highlight: renderer.highlight_clipboard and node is copied
 ---@param node Node
----@return string|nil group
+---@return string? highlight_group
-function DecoratorCopied:calculate_highlight(node)
+function CopiedDecorator:highlight_group(node)
-  if self.hl_pos ~= HL_POSITION.none and self.explorer.clipboard:is_copied(node) then
+  if self.highlight_range ~= "none" and self.explorer.clipboard:is_copied(node) then
     return "NvimTreeCopiedHL"
   end
 end
 
-return DecoratorCopied
+return CopiedDecorator

lua/nvim-tree/renderer/decorator/cut.lua

@@ -1,35 +1,29 @@
-local HL_POSITION = require("nvim-tree.enum").HL_POSITION
-local ICON_PLACEMENT = require("nvim-tree.enum").ICON_PLACEMENT
-
 local Decorator = require("nvim-tree.renderer.decorator")
 
----@class (exact) DecoratorCut: Decorator
+---@class (exact) CutDecorator: Decorator
----@field enabled boolean
+---@field private explorer Explorer
----@field icon HighlightedString|nil
+local CutDecorator = Decorator:extend()
-local DecoratorCut = Decorator:new()
 
----@param opts table
+---@class CutDecorator
----@param explorer Explorer
+---@overload fun(args: DecoratorArgs): CutDecorator
----@return DecoratorCut
-function DecoratorCut:new(opts, explorer)
-  local o = Decorator.new(self, {
-    explorer = explorer,
-    enabled = true,
-    hl_pos = HL_POSITION[opts.renderer.highlight_clipboard] or HL_POSITION.none,
-    icon_placement = ICON_PLACEMENT.none,
-  })
-  ---@cast o DecoratorCut
 
-  return o
+---@protected
+---@param args DecoratorArgs
+function CutDecorator:new(args)
+  self.explorer        = args.explorer
+
+  self.enabled         = true
+  self.highlight_range = self.explorer.opts.renderer.highlight_clipboard or "none"
+  self.icon_placement  = "none"
 end
 
 ---Cut highlight: renderer.highlight_clipboard and node is cut
 ---@param node Node
----@return string|nil group
+---@return string? highlight_group
-function DecoratorCut:calculate_highlight(node)
+function CutDecorator:highlight_group(node)
-  if self.hl_pos ~= HL_POSITION.none and self.explorer.clipboard:is_cut(node) then
+  if self.highlight_range ~= "none" and self.explorer.clipboard:is_cut(node) then
     return "NvimTreeCutHL"
   end
 end
 
-return DecoratorCut
+return CutDecorator

lua/nvim-tree/renderer/decorator/diagnostics.lua

@@ -1,9 +1,7 @@
 local diagnostics = require("nvim-tree.diagnostics")
 
-local HL_POSITION = require("nvim-tree.enum").HL_POSITION
-local ICON_PLACEMENT = require("nvim-tree.enum").ICON_PLACEMENT
-
 local Decorator = require("nvim-tree.renderer.decorator")
+local DirectoryNode = require("nvim-tree.node.directory")
 
 -- highlight groups by severity
 local HG_ICON = {
@@ -32,59 +30,54 @@ local ICON_KEYS = {
   ["hint"] = vim.diagnostic.severity.HINT,
 }
 
----@class (exact) DecoratorDiagnostics: Decorator
+---@class (exact) DiagnosticsDecorator: Decorator
----@field icons HighlightedString[]
+---@field private explorer Explorer
-local DecoratorDiagnostics = Decorator:new()
+---@field private diag_icons HighlightedString[]?
+local DiagnosticsDecorator = Decorator:extend()
 
----@param opts table
+---@class DiagnosticsDecorator
----@param explorer Explorer
+---@overload fun(args: DecoratorArgs): DiagnosticsDecorator
----@return DecoratorDiagnostics
-function DecoratorDiagnostics:new(opts, explorer)
-  local o = Decorator.new(self, {
-    explorer = explorer,
-    enabled = opts.diagnostics.enable,
-    hl_pos = HL_POSITION[opts.renderer.highlight_diagnostics] or HL_POSITION.none,
-    icon_placement = ICON_PLACEMENT[opts.renderer.icons.diagnostics_placement] or ICON_PLACEMENT.none,
-  })
-  ---@cast o DecoratorDiagnostics
 
-  if not o.enabled then
+---@protected
-    return o
+---@param args DecoratorArgs
-  end
+function DiagnosticsDecorator:new(args)
+  self.explorer        = args.explorer
 
-  if opts.renderer.icons.show.diagnostics then
+  self.enabled         = true
-    o.icons = {}
+  self.highlight_range = self.explorer.opts.renderer.highlight_diagnostics or "none"
+  self.icon_placement  = self.explorer.opts.renderer.icons.diagnostics_placement or "none"
+
+  if self.explorer.opts.renderer.icons.show.diagnostics then
+    self.diag_icons = {}
     for name, sev in pairs(ICON_KEYS) do
-      o.icons[sev] = {
+      self.diag_icons[sev] = {
-        str = opts.diagnostics.icons[name],
+        str = self.explorer.opts.diagnostics.icons[name],
         hl = { HG_ICON[sev] },
       }
-      o:define_sign(o.icons[sev])
+      self:define_sign(self.diag_icons[sev])
     end
   end
-
-  return o
 end
 
 ---Diagnostic icon: diagnostics.enable, renderer.icons.show.diagnostics and node has status
 ---@param node Node
----@return HighlightedString[]|nil icons
+---@return HighlightedString[]? icons
-function DecoratorDiagnostics:calculate_icons(node)
+function DiagnosticsDecorator:icons(node)
-  if node and self.enabled and self.icons then
+  if node and self.diag_icons then
     local diag_status = diagnostics.get_diag_status(node)
     local diag_value = diag_status and diag_status.value
 
     if diag_value then
-      return { self.icons[diag_value] }
+      return { self.diag_icons[diag_value] }
     end
   end
 end
 
 ---Diagnostic highlight: diagnostics.enable, renderer.highlight_diagnostics and node has status
 ---@param node Node
----@return string|nil group
+---@return string? highlight_group
-function DecoratorDiagnostics:calculate_highlight(node)
+function DiagnosticsDecorator:highlight_group(node)
-  if not node or not self.enabled or self.hl_pos == HL_POSITION.none then
+  if self.highlight_range == "none" then
     return nil
   end
 
@@ -96,7 +89,7 @@ function DecoratorDiagnostics:calculate_highlight(node)
   end
 
   local group
-  if node.nodes then
+  if node:is(DirectoryNode) then
     group = HG_FOLDER[diag_value]
   else
     group = HG_FILE[diag_value]
@@ -109,4 +102,4 @@ function DecoratorDiagnostics:calculate_highlight(node)
   end
 end
 
-return DecoratorDiagnostics
+return DiagnosticsDecorator

lua/nvim-tree/renderer/decorator/git.lua

@@ -1,68 +1,69 @@
 local notify = require("nvim-tree.notify")
-local explorer_node = require("nvim-tree.explorer.node")
-
-local HL_POSITION = require("nvim-tree.enum").HL_POSITION
-local ICON_PLACEMENT = require("nvim-tree.enum").ICON_PLACEMENT
 
 local Decorator = require("nvim-tree.renderer.decorator")
+local DirectoryNode = require("nvim-tree.node.directory")
 
----@class HighlightedStringGit: HighlightedString
+---@class (exact) GitHighlightedString: nvim_tree.api.HighlightedString
 ---@field ord number decreasing priority
 
----@class (exact) DecoratorGit: Decorator
+---@alias GitStatusStrings "deleted" | "ignored" | "renamed" | "staged" | "unmerged" | "unstaged" | "untracked"
----@field file_hl table<string, string> by porcelain status e.g. "AM"
----@field folder_hl table<string, string> by porcelain status
----@field icons_by_status HighlightedStringGit[] by human status
----@field icons_by_xy table<string, HighlightedStringGit[]> by porcelain status
-local DecoratorGit = Decorator:new()
 
----@param opts table
+---@alias GitIconsByStatus table<GitStatusStrings, GitHighlightedString> human status
----@param explorer Explorer
+---@alias GitIconsByXY table<GitXY, GitHighlightedString[]> porcelain status
----@return DecoratorGit
+---@alias GitGlyphsByStatus table<GitStatusStrings, string> from opts
-function DecoratorGit:new(opts, explorer)
-  local o = Decorator.new(self, {
-    explorer = explorer,
-    enabled = opts.git.enable,
-    hl_pos = HL_POSITION[opts.renderer.highlight_git] or HL_POSITION.none,
-    icon_placement = ICON_PLACEMENT[opts.renderer.icons.git_placement] or ICON_PLACEMENT.none,
-  })
-  ---@cast o DecoratorGit
 
-  if not o.enabled then
+---@class (exact) GitDecorator: Decorator
-    return o
+---@field private explorer Explorer
+---@field private file_hl_by_xy table<GitXY, string>?
+---@field private folder_hl_by_xy table<GitXY, string>?
+---@field private icons_by_status GitIconsByStatus?
+---@field private icons_by_xy GitIconsByXY?
+local GitDecorator = Decorator:extend()
+
+---@class GitDecorator
+---@overload fun(args: DecoratorArgs): GitDecorator
+
+---@protected
+---@param args DecoratorArgs
+function GitDecorator:new(args)
+  self.explorer        = args.explorer
+
+  self.enabled         = self.explorer.opts.git.enable
+  self.highlight_range = self.explorer.opts.renderer.highlight_git or "none"
+  self.icon_placement  = self.explorer.opts.renderer.icons.git_placement or "none"
+
+  if not self.enabled then
+    return
   end
 
-  if o.hl_pos ~= HL_POSITION.none then
+  if self.highlight_range ~= "none" then
-    o:build_hl_table()
+    self:build_file_folder_hl_by_xy()
   end
 
-  if opts.renderer.icons.show.git then
+  if self.explorer.opts.renderer.icons.show.git then
-    o:build_icons_by_status(opts.renderer.icons.glyphs.git)
+    self:build_icons_by_status(self.explorer.opts.renderer.icons.glyphs.git)
-    o:build_icons_by_xy(o.icons_by_status)
+    self:build_icons_by_xy(self.icons_by_status)
 
-    for _, icon in pairs(o.icons_by_status) do
+    for _, icon in pairs(self.icons_by_status) do
       self:define_sign(icon)
     end
   end
-
-  return o
 end
 
----@param glyphs table<string, string> user glyps
+---@param glyphs GitGlyphsByStatus
-function DecoratorGit:build_icons_by_status(glyphs)
+function GitDecorator:build_icons_by_status(glyphs)
-  self.icons_by_status = {
+  self.icons_by_status           = {}
-    staged = { str = glyphs.staged, hl = { "NvimTreeGitStagedIcon" }, ord = 1 },
+  self.icons_by_status.staged    = { str = glyphs.staged, hl = { "NvimTreeGitStagedIcon" }, ord = 1 }
-    unstaged = { str = glyphs.unstaged, hl = { "NvimTreeGitDirtyIcon" }, ord = 2 },
+  self.icons_by_status.unstaged  = { str = glyphs.unstaged, hl = { "NvimTreeGitDirtyIcon" }, ord = 2 }
-    renamed = { str = glyphs.renamed, hl = { "NvimTreeGitRenamedIcon" }, ord = 3 },
+  self.icons_by_status.renamed   = { str = glyphs.renamed, hl = { "NvimTreeGitRenamedIcon" }, ord = 3 }
-    deleted = { str = glyphs.deleted, hl = { "NvimTreeGitDeletedIcon" }, ord = 4 },
+  self.icons_by_status.deleted   = { str = glyphs.deleted, hl = { "NvimTreeGitDeletedIcon" }, ord = 4 }
-    unmerged = { str = glyphs.unmerged, hl = { "NvimTreeGitMergeIcon" }, ord = 5 },
+  self.icons_by_status.unmerged  = { str = glyphs.unmerged, hl = { "NvimTreeGitMergeIcon" }, ord = 5 }
-    untracked = { str = glyphs.untracked, hl = { "NvimTreeGitNewIcon" }, ord = 6 },
+  self.icons_by_status.untracked = { str = glyphs.untracked, hl = { "NvimTreeGitNewIcon" }, ord = 6 }
-    ignored = { str = glyphs.ignored, hl = { "NvimTreeGitIgnoredIcon" }, ord = 7 },
+  self.icons_by_status.ignored   = { str = glyphs.ignored, hl = { "NvimTreeGitIgnoredIcon" }, ord = 7 }
-  }
 end
 
----@param icons HighlightedStringGit[]
+---@param icons GitIconsByStatus
-function DecoratorGit:build_icons_by_xy(icons)
+function GitDecorator:build_icons_by_xy(icons)
   self.icons_by_xy = {
     ["M "] = { icons.staged },
     [" M"] = { icons.unstaged },
@@ -95,12 +96,12 @@ function DecoratorGit:build_icons_by_xy(icons)
     ["DD"] = { icons.deleted },
     ["DU"] = { icons.deleted, icons.unmerged },
     ["!!"] = { icons.ignored },
-    dirty = { icons.unstaged },
+    dirty  = { icons.unstaged },
   }
 end
 
-function DecoratorGit:build_hl_table()
+function GitDecorator:build_file_folder_hl_by_xy()
-  self.file_hl = {
+  self.file_hl_by_xy = {
     ["M "] = "NvimTreeGitFileStagedHL",
     ["C "] = "NvimTreeGitFileStagedHL",
     ["AA"] = "NvimTreeGitFileStagedHL",
@@ -114,7 +115,7 @@ function DecoratorGit:build_hl_table()
     [" T"] = "NvimTreeGitFileDirtyHL",
     ["MM"] = "NvimTreeGitFileDirtyHL",
     ["AM"] = "NvimTreeGitFileDirtyHL",
-    dirty = "NvimTreeGitFileDirtyHL",
+    dirty  = "NvimTreeGitFileDirtyHL",
     ["A "] = "NvimTreeGitFileStagedHL",
     ["??"] = "NvimTreeGitFileNewHL",
     ["AU"] = "NvimTreeGitFileMergeHL",
@@ -133,33 +134,33 @@ function DecoratorGit:build_hl_table()
     [" A"] = "none",
   }
 
-  self.folder_hl = {}
+  self.folder_hl_by_xy = {}
-  for k, v in pairs(self.file_hl) do
+  for k, v in pairs(self.file_hl_by_xy) do
-    self.folder_hl[k] = v:gsub("File", "Folder")
+    self.folder_hl_by_xy[k] = v:gsub("File", "Folder")
   end
 end
 
 ---Git icons: git.enable, renderer.icons.show.git and node has status
 ---@param node Node
----@return HighlightedString[]|nil modified icon
+---@return HighlightedString[]? icons
-function DecoratorGit:calculate_icons(node)
+function GitDecorator:icons(node)
-  if not node or not self.enabled or not self.icons_by_xy then
+  if not self.icons_by_xy then
     return nil
   end
 
-  local git_status = explorer_node.get_git_status(node)
+  local git_xy = node:get_git_xy()
-  if git_status == nil then
+  if git_xy == nil then
     return nil
   end
 
   local inserted = {}
   local iconss = {}
 
-  for _, s in pairs(git_status) do
+  for _, s in pairs(git_xy) do
     local icons = self.icons_by_xy[s]
     if not icons then
-      if self.hl_pos == HL_POSITION.none then
+      if self.highlight_range == "none" then
-        notify.warn(string.format("Unrecognized git state '%s'", git_status))
+        notify.warn(string.format("Unrecognized git state '%s'", git_xy))
       end
       return nil
     end
@@ -189,12 +190,12 @@ end
 ---Get the first icon as the sign if appropriate
 ---@param node Node
 ---@return string|nil name
-function DecoratorGit:sign_name(node)
+function GitDecorator:sign_name(node)
-  if self.icon_placement ~= ICON_PLACEMENT.signcolumn then
+  if self.icon_placement ~= "signcolumn" then
     return
   end
 
-  local icons = self:calculate_icons(node)
+  local icons = self:icons(node)
   if icons and #icons > 0 then
     return icons[1].hl[1]
   end
@@ -202,22 +203,22 @@ end
 
 ---Git highlight: git.enable, renderer.highlight_git and node has status
 ---@param node Node
----@return string|nil group
+---@return string? highlight_group
-function DecoratorGit:calculate_highlight(node)
+function GitDecorator:highlight_group(node)
-  if not node or not self.enabled or self.hl_pos == HL_POSITION.none then
+  if self.highlight_range == "none" then
     return nil
   end
 
-  local git_status = explorer_node.get_git_status(node)
+  local git_xy = node:get_git_xy()
-  if not git_status then
+  if not git_xy then
     return nil
   end
 
-  if node.nodes then
+  if node:is(DirectoryNode) then
-    return self.folder_hl[git_status[1]]
+    return self.folder_hl_by_xy[git_xy[1]]
   else
-    return self.file_hl[git_status[1]]
+    return self.file_hl_by_xy[git_xy[1]]
   end
 end
 
-return DecoratorGit
+return GitDecorator

lua/nvim-tree/renderer/decorator/hidden.lua

@@ -1,57 +1,54 @@
-local HL_POSITION = require("nvim-tree.enum").HL_POSITION
-local ICON_PLACEMENT = require("nvim-tree.enum").ICON_PLACEMENT
-local explorer_node = require("nvim-tree.explorer.node")
 local Decorator = require("nvim-tree.renderer.decorator")
+local DirectoryNode = require("nvim-tree.node.directory")
 
----@class (exact) DecoratorHidden: Decorator
+---@class (exact) HiddenDecorator: Decorator
----@field icon HighlightedString|nil
+---@field private explorer Explorer
-local DecoratorHidden = Decorator:new()
+---@field private icon HighlightedString?
+local HiddenDecorator = Decorator:extend()
 
----@param opts table
+---@class HiddenDecorator
----@param explorer Explorer
+---@overload fun(args: DecoratorArgs): HiddenDecorator
----@return DecoratorHidden
-function DecoratorHidden:new(opts, explorer)
-  local o = Decorator.new(self, {
-    explorer = explorer,
-    enabled = true,
-    hl_pos = HL_POSITION[opts.renderer.highlight_hidden] or HL_POSITION.none,
-    icon_placement = ICON_PLACEMENT[opts.renderer.icons.hidden_placement] or ICON_PLACEMENT.none,
-  })
-  ---@cast o DecoratorHidden
 
-  if opts.renderer.icons.show.hidden then
+---@protected
-    o.icon = {
+---@param args DecoratorArgs
-      str = opts.renderer.icons.glyphs.hidden,
+function HiddenDecorator:new(args)
+  self.explorer        = args.explorer
+
+  self.enabled         = true
+  self.highlight_range = self.explorer.opts.renderer.highlight_hidden or "none"
+  self.icon_placement  = self.explorer.opts.renderer.icons.hidden_placement or "none"
+
+  if self.explorer.opts.renderer.icons.show.hidden then
+    self.icon = {
+      str = self.explorer.opts.renderer.icons.glyphs.hidden,
       hl = { "NvimTreeHiddenIcon" },
     }
-    o:define_sign(o.icon)
+    self:define_sign(self.icon)
   end
-
-  return o
 end
 
 ---Hidden icon: renderer.icons.show.hidden and node starts with `.` (dotfile).
 ---@param node Node
----@return HighlightedString[]|nil icons
+---@return HighlightedString[]? icons
-function DecoratorHidden:calculate_icons(node)
+function HiddenDecorator:icons(node)
-  if self.enabled and explorer_node.is_dotfile(node) then
+  if node:is_dotfile() then
     return { self.icon }
   end
 end
 
 ---Hidden highlight: renderer.highlight_hidden and node starts with `.` (dotfile).
 ---@param node Node
----@return string|nil group
+---@return string? highlight_group
-function DecoratorHidden:calculate_highlight(node)
+function HiddenDecorator:highlight_group(node)
-  if not self.enabled or self.hl_pos == HL_POSITION.none or (not explorer_node.is_dotfile(node)) then
+  if self.highlight_range == "none" or not node:is_dotfile() then
     return nil
   end
 
-  if node.nodes then
+  if node:is(DirectoryNode) then
     return "NvimTreeHiddenFolderHL"
   else
     return "NvimTreeHiddenFileHL"
   end
 end
 
-return DecoratorHidden
+return HiddenDecorator

lua/nvim-tree/renderer/decorator/init.lua

@@ -1,39 +1,52 @@
-local HL_POSITION = require("nvim-tree.enum").HL_POSITION
+local Class = require("nvim-tree.classic")
-local ICON_PLACEMENT = require("nvim-tree.enum").ICON_PLACEMENT
 
----@class (exact) Decorator
+---Abstract Decorator
----@field private __index? table
+---@class (exact) Decorator: Class
----@field protected explorer Explorer
 ---@field protected enabled boolean
----@field protected hl_pos HL_POSITION
+---@field protected highlight_range nvim_tree.api.decorator.HighlightRange
----@field protected icon_placement ICON_PLACEMENT
+---@field protected icon_placement nvim_tree.api.decorator.IconPlacement
-local Decorator = {}
+local Decorator = Class:extend()
 
----@param o Decorator|nil
+---@class (exact) DecoratorArgs
----@return Decorator
+---@field explorer Explorer
-function Decorator:new(o)
-  o = o or {}
 
-  setmetatable(o, self)
+---Abstract icon override, optionally implemented
-  self.__index = self
+---@param node Node
-
+---@return HighlightedString? icon_node
-  return o
+function Decorator:icon_node(node)
+  return self:nop(node)
 end
 
----Maybe highlight groups
+---Abstract icons, optionally implemented
+---@protected
 ---@param node Node
----@return string|nil icon highlight group
+---@return HighlightedString[]? icons
----@return string|nil name highlight group
+function Decorator:icons(node)
-function Decorator:groups_icon_name(node)
+  self:nop(node)
+end
+
+---Abstract highlight group, optionally implemented
+---@protected
+---@param node Node
+---@return string? highlight_group
+function Decorator:highlight_group(node)
+  self:nop(node)
+end
+
+---Maybe highlight groups for icon and name
+---@param node Node
+---@return string? icon highlight group
+---@return string? name highlight group
+function Decorator:highlight_group_icon_name(node)
   local icon_hl, name_hl
 
-  if self.enabled and self.hl_pos ~= HL_POSITION.none then
+  if self.enabled and self.highlight_range ~= "none" then
-    local hl = self:calculate_highlight(node)
+    local hl = self:highlight_group(node)
 
-    if self.hl_pos == HL_POSITION.all or self.hl_pos == HL_POSITION.icon then
+    if self.highlight_range == "all" or self.highlight_range == "icon" then
       icon_hl = hl
     end
-    if self.hl_pos == HL_POSITION.all or self.hl_pos == HL_POSITION.name then
+    if self.highlight_range == "all" or self.highlight_range == "name" then
       name_hl = hl
     end
   end
@@ -43,70 +56,54 @@ end
 
 ---Maybe icon sign
 ---@param node Node
----@return string|nil name
+---@return string? name
 function Decorator:sign_name(node)
-  if not self.enabled or self.icon_placement ~= ICON_PLACEMENT.signcolumn then
+  if not self.enabled or self.icon_placement ~= "signcolumn" then
     return
   end
 
-  local icons = self:calculate_icons(node)
+  local icons = self:icons(node)
   if icons and #icons > 0 then
     return icons[1].hl[1]
   end
 end
 
----Icons when ICON_PLACEMENT.before
+---Icons when "before"
 ---@param node Node
----@return HighlightedString[]|nil icons
+---@return HighlightedString[]? icons
 function Decorator:icons_before(node)
-  if not self.enabled or self.icon_placement ~= ICON_PLACEMENT.before then
+  if not self.enabled or self.icon_placement ~= "before" then
     return
   end
 
-  return self:calculate_icons(node)
+  return self:icons(node)
 end
 
----Icons when ICON_PLACEMENT.after
+---Icons when "after"
 ---@param node Node
----@return HighlightedString[]|nil icons
+---@return HighlightedString[]? icons
 function Decorator:icons_after(node)
-  if not self.enabled or self.icon_placement ~= ICON_PLACEMENT.after then
+  if not self.enabled or self.icon_placement ~= "after" then
     return
   end
 
-  return self:calculate_icons(node)
+  return self:icons(node)
 end
 
----Icons when ICON_PLACEMENT.right_align
+---Icons when "right_align"
 ---@param node Node
----@return HighlightedString[]|nil icons
+---@return HighlightedString[]? icons
 function Decorator:icons_right_align(node)
-  if not self.enabled or self.icon_placement ~= ICON_PLACEMENT.right_align then
+  if not self.enabled or self.icon_placement ~= "right_align" then
     return
   end
 
-  return self:calculate_icons(node)
+  return self:icons(node)
-end
-
----Maybe icons, optionally implemented
----@protected
----@param _ Node
----@return HighlightedString[]|nil icons
-function Decorator:calculate_icons(_)
-  return nil
-end
-
----Maybe highlight group, optionally implemented
----@protected
----@param _ Node
----@return string|nil group
-function Decorator:calculate_highlight(_)
-  return nil
 end
 
 ---Define a sign
 ---@protected
----@param icon HighlightedString|nil
+---@param icon HighlightedString?
 function Decorator:define_sign(icon)
   if icon and #icon.hl > 0 then
     local name = icon.hl[1]
@@ -115,9 +112,8 @@ function Decorator:define_sign(icon)
       vim.fn.sign_undefine(name)
     end
 
-    -- don't use sign if not defined
+    -- don't render sign if empty
     if #icon.str < 1 then
-      self.icon_placement = ICON_PLACEMENT.none
       return
     end
 

lua/nvim-tree/renderer/decorator/modified.lua

@@ -1,63 +1,56 @@
 local buffers = require("nvim-tree.buffers")
 
-local HL_POSITION = require("nvim-tree.enum").HL_POSITION
-local ICON_PLACEMENT = require("nvim-tree.enum").ICON_PLACEMENT
-
 local Decorator = require("nvim-tree.renderer.decorator")
+local DirectoryNode = require("nvim-tree.node.directory")
 
----@class (exact) DecoratorModified: Decorator
+---@class (exact) ModifiedDecorator: Decorator
----@field icon HighlightedString|nil
+---@field private explorer Explorer
-local DecoratorModified = Decorator:new()
+---@field private icon HighlightedString?
+local ModifiedDecorator = Decorator:extend()
 
----@param opts table
+---@class ModifiedDecorator
----@param explorer Explorer
+---@overload fun(args: DecoratorArgs): ModifiedDecorator
----@return DecoratorModified
-function DecoratorModified:new(opts, explorer)
-  local o = Decorator.new(self, {
-    explorer = explorer,
-    enabled = opts.modified.enable,
-    hl_pos = HL_POSITION[opts.renderer.highlight_modified] or HL_POSITION.none,
-    icon_placement = ICON_PLACEMENT[opts.renderer.icons.modified_placement] or ICON_PLACEMENT.none,
-  })
-  ---@cast o DecoratorModified
 
-  if not o.enabled then
+---@protected
-    return o
+---@param args DecoratorArgs
-  end
+function ModifiedDecorator:new(args)
+  self.explorer        = args.explorer
 
-  if opts.renderer.icons.show.modified then
+  self.enabled         = true
-    o.icon = {
+  self.highlight_range = self.explorer.opts.renderer.highlight_modified or "none"
-      str = opts.renderer.icons.glyphs.modified,
+  self.icon_placement  = self.explorer.opts.renderer.icons.modified_placement or "none"
+
+  if self.explorer.opts.renderer.icons.show.modified then
+    self.icon = {
+      str = self.explorer.opts.renderer.icons.glyphs.modified,
       hl = { "NvimTreeModifiedIcon" },
     }
-    o:define_sign(o.icon)
+    self:define_sign(self.icon)
   end
-
-  return o
 end
 
 ---Modified icon: modified.enable, renderer.icons.show.modified and node is modified
 ---@param node Node
----@return HighlightedString[]|nil icons
+---@return HighlightedString[]? icons
-function DecoratorModified:calculate_icons(node)
+function ModifiedDecorator:icons(node)
-  if self.enabled and buffers.is_modified(node) then
+  if buffers.is_modified(node) then
     return { self.icon }
   end
 end
 
 ---Modified highlight: modified.enable, renderer.highlight_modified and node is modified
 ---@param node Node
----@return string|nil group
+---@return string? highlight_group
-function DecoratorModified:calculate_highlight(node)
+function ModifiedDecorator:highlight_group(node)
-  if not self.enabled or self.hl_pos == HL_POSITION.none or not buffers.is_modified(node) then
+  if self.highlight_range == "none" or not buffers.is_modified(node) then
     return nil
   end
 
-  if node.nodes then
+  if node:is(DirectoryNode) then
     return "NvimTreeModifiedFolderHL"
   else
     return "NvimTreeModifiedFileHL"
   end
 end
 
-return DecoratorModified
+return ModifiedDecorator

lua/nvim-tree/renderer/decorator/opened.lua

@@ -1,37 +1,32 @@
 local buffers = require("nvim-tree.buffers")
 
-local HL_POSITION = require("nvim-tree.enum").HL_POSITION
-local ICON_PLACEMENT = require("nvim-tree.enum").ICON_PLACEMENT
-
 local Decorator = require("nvim-tree.renderer.decorator")
 
----@class (exact) DecoratorOpened: Decorator
+---@class (exact) OpenDecorator: Decorator
----@field enabled boolean
+---@field private explorer Explorer
----@field icon HighlightedString|nil
+---@field private icon HighlightedString|nil
-local DecoratorOpened = Decorator:new()
+local OpenDecorator = Decorator:extend()
 
----@param opts table
+---@class OpenDecorator
----@param explorer Explorer
+---@overload fun(args: DecoratorArgs): OpenDecorator
----@return DecoratorOpened
-function DecoratorOpened:new(opts, explorer)
-  local o = Decorator.new(self, {
-    explorer = explorer,
-    enabled = true,
-    hl_pos = HL_POSITION[opts.renderer.highlight_opened_files] or HL_POSITION.none,
-    icon_placement = ICON_PLACEMENT.none,
-  })
-  ---@cast o DecoratorOpened
 
-  return o
+---@protected
+---@param args DecoratorArgs
+function OpenDecorator:new(args)
+  self.explorer        = args.explorer
+
+  self.enabled         = true
+  self.highlight_range = self.explorer.opts.renderer.highlight_opened_files or "none"
+  self.icon_placement  = "none"
 end
 
 ---Opened highlight: renderer.highlight_opened_files and node has an open buffer
 ---@param node Node
----@return string|nil group
+---@return string? highlight_group
-function DecoratorOpened:calculate_highlight(node)
+function OpenDecorator:highlight_group(node)
-  if self.hl_pos ~= HL_POSITION.none and buffers.is_opened(node) then
+  if self.highlight_range ~= "none" and buffers.is_opened(node) then
     return "NvimTreeOpenedHL"
   end
 end
 
-return DecoratorOpened
+return OpenDecorator

lua/nvim-tree/renderer/decorator/user.lua

@@ -0,0 +1,7 @@
+local Decorator = require("nvim-tree.renderer.decorator")
+
+---Exposed as nvim_tree.api.decorator.UserDecorator
+---@class (exact) UserDecorator: Decorator
+local UserDecorator = Decorator:extend()
+
+return UserDecorator

lua/nvim-tree/renderer/init.lua

@@ -1,9 +1,7 @@
 local log = require("nvim-tree.log")
-local view = require("nvim-tree.view")
 local events = require("nvim-tree.events")
 
-local icon_component = require("nvim-tree.renderer.components.icons")
+local Class = require("nvim-tree.classic")
-
 local Builder = require("nvim-tree.renderer.builder")
 
 local SIGN_GROUP = "NvimTreeRendererSigns"
@@ -12,36 +10,38 @@ local namespace_highlights_id = vim.api.nvim_create_namespace("NvimTreeHighlight
 local namespace_extmarks_id = vim.api.nvim_create_namespace("NvimTreeExtmarks")
 local namespace_virtual_lines_id = vim.api.nvim_create_namespace("NvimTreeVirtualLines")
 
----@class (exact) Renderer
+---@alias HighlightRangeArgs { higroup:string, start:integer[], finish:integer[] } named arguments for vim.hl.range
----@field private __index? table
----@field private opts table user options
----@field private explorer Explorer
----@field private builder Builder
-local Renderer = {}
 
----@param opts table user options
+---@class (exact) Renderer: Class
----@param explorer Explorer
+---@field explorer Explorer
----@return Renderer
+local Renderer = Class:extend()
-function Renderer:new(opts, explorer)
-  ---@type Renderer
-  local o = {
-    opts = opts,
-    explorer = explorer,
-    builder = Builder:new(opts, explorer),
-  }
 
-  setmetatable(o, self)
+---@class Renderer
-  self.__index = self
+---@overload fun(args: RendererArgs): Renderer
 
-  return o
+---@class (exact) RendererArgs
+---@field explorer Explorer
+
+---@protected
+---@param args RendererArgs
+function Renderer:new(args)
+  args.explorer:log_new("Renderer")
+
+  self.explorer = args.explorer
+end
+
+function Renderer:destroy()
+  self.explorer:log_destroy("Renderer")
 end
 
 ---@private
 ---@param bufnr number
 ---@param lines string[]
----@param hl_args AddHighlightArgs[]
+---@param hl_range_args HighlightRangeArgs[]
 ---@param signs string[]
-function Renderer:_draw(bufnr, lines, hl_args, signs, extmarks, virtual_lines)
+---@param extmarks table[] extra marks for right icon placement
+---@param virtual_lines table[] virtual lines for hidden count display
+function Renderer:_draw(bufnr, lines, hl_range_args, signs, extmarks, virtual_lines)
   if vim.fn.has("nvim-0.10") == 1 then
     vim.api.nvim_set_option_value("modifiable", true, { buf = bufnr })
   else
@@ -49,7 +49,7 @@ function Renderer:_draw(bufnr, lines, hl_args, signs, extmarks, virtual_lines)
   end
 
   vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, lines)
-  self:render_hl(bufnr, hl_args)
+  self:render_hl(bufnr, hl_range_args)
 
   if vim.fn.has("nvim-0.10") == 1 then
     vim.api.nvim_set_option_value("modifiable", false, { buf = bufnr })
@@ -66,9 +66,9 @@ function Renderer:_draw(bufnr, lines, hl_args, signs, extmarks, virtual_lines)
   for i, extname in pairs(extmarks) do
     for _, mark in ipairs(extname) do
       vim.api.nvim_buf_set_extmark(bufnr, namespace_extmarks_id, i, -1, {
-        virt_text = { { mark.str, mark.hl } },
+        virt_text     = { { mark.str, mark.hl } },
         virt_text_pos = "right_align",
-        hl_mode = "combine",
+        hl_mode       = "combine",
       })
     end
   end
@@ -76,52 +76,54 @@ function Renderer:_draw(bufnr, lines, hl_args, signs, extmarks, virtual_lines)
   vim.api.nvim_buf_clear_namespace(bufnr, namespace_virtual_lines_id, 0, -1)
   for line_nr, vlines in pairs(virtual_lines) do
     vim.api.nvim_buf_set_extmark(bufnr, namespace_virtual_lines_id, line_nr, 0, {
-      virt_lines = vlines,
+      virt_lines         = vlines,
-      virt_lines_above = false,
+      virt_lines_above   = false,
       virt_lines_leftcol = true,
     })
   end
 end
 
 ---@private
-function Renderer:render_hl(bufnr, hl)
+---@param bufnr integer
+---@param hl_range_args HighlightRangeArgs[]
+function Renderer:render_hl(bufnr, hl_range_args)
   if not bufnr or not vim.api.nvim_buf_is_loaded(bufnr) then
     return
   end
   vim.api.nvim_buf_clear_namespace(bufnr, namespace_highlights_id, 0, -1)
-  for _, data in ipairs(hl) do
+  for _, args in ipairs(hl_range_args) do
-    if type(data[1]) == "table" then
+    if vim.fn.has("nvim-0.11") == 1 and vim.hl and vim.hl.range then
-      for _, group in ipairs(data[1]) do
+      vim.hl.range(bufnr, namespace_highlights_id, args.higroup, args.start, args.finish, {})
-        vim.api.nvim_buf_add_highlight(bufnr, namespace_highlights_id, group, data[2], data[3], data[4])
+    else
-      end
+      vim.api.nvim_buf_add_highlight(bufnr, namespace_highlights_id, args.higroup, args.start[1], args.start[2], args.finish[2]) ---@diagnostic disable-line: deprecated
     end
   end
 end
 
 function Renderer:draw()
-  local bufnr = view.get_bufnr()
+  local bufnr = self.explorer.view:get_bufnr("Renderer:draw")
   if not bufnr or not vim.api.nvim_buf_is_loaded(bufnr) then
     return
   end
+  local winid = self.explorer.view:get_winid(nil, "Renderer:draw")
 
   local profile = log.profile_start("draw")
 
-  local cursor = vim.api.nvim_win_get_cursor(view.get_winnr() or 0)
+  local cursor = vim.api.nvim_win_get_cursor(winid or 0)
-  icon_component.reset_config()
 
-  local builder = Builder:new(self.opts, self.explorer):build()
+  local builder = Builder(self.explorer):build()
 
-  self:_draw(bufnr, builder.lines, builder.hl_args, builder.signs, builder.extmarks, builder.virtual_lines)
+  self:_draw(bufnr, builder.lines, builder.hl_range_args, builder.signs, builder.extmarks, builder.virtual_lines)
 
   if cursor and #builder.lines >= cursor[1] then
-    vim.api.nvim_win_set_cursor(view.get_winnr() or 0, cursor)
+    vim.api.nvim_win_set_cursor(winid or 0, cursor)
   end
 
-  view.grow_from_content()
+  self.explorer.view:grow_from_content()
 
   log.profile_end(profile)
 
-  events._dispatch_on_tree_rendered(bufnr, view.get_winnr())
+  events._dispatch_on_tree_rendered(bufnr, winid)
 end
 
 return Renderer

lua/nvim-tree/utils.lua

@@ -1,5 +1,4 @@
 local Iterator = require("nvim-tree.iterators.node-iterator")
-local notify = require("nvim-tree.notify")
 
 local M = {
   debouncers = {},
@@ -59,6 +58,34 @@ function M.path_basename(path)
   return path:sub(i + 1, #path)
 end
 
+--- Check if there are parentheses before brackets, it causes problems for windows.
+--- Refer to issue #2862 and #2961 for more details.
+local function has_parentheses_and_brackets(path)
+  local _, i_parentheses = path:find("(", 1, true)
+  local _, i_brackets = path:find("[", 1, true)
+  if i_parentheses and i_brackets then
+    return true
+  end
+  return false
+end
+
+--- Path normalizations for windows only
+local function win_norm_path(path)
+  if path == nil then
+    return path
+  end
+  local norm_path = path
+  -- Normalize for issue #2862 and #2961
+  if has_parentheses_and_brackets(norm_path) then
+    norm_path = norm_path:gsub("/", "\\")
+  end
+  -- Normalize the drive letter
+  norm_path = norm_path:gsub("^%l:", function(drive)
+    return drive:upper()
+  end)
+  return norm_path
+end
+
 --- Get a path relative to another path.
 ---@param path string
 ---@param relative_to string|nil
@@ -68,13 +95,18 @@ function M.path_relative(path, relative_to)
     return path
   end
 
-  local _, r = path:find(M.path_add_trailing(relative_to), 1, true)
+  local norm_path = path
-  local p = path
+  if M.is_windows then
+    norm_path = win_norm_path(norm_path)
+  end
+
+  local _, r = norm_path:find(M.path_add_trailing(relative_to), 1, true)
+  local p = norm_path
   if r then
     -- take the relative path starting after '/'
     -- if somehow given a completely matching path,
     -- returns ""
-    p = path:sub(r + 1)
+    p = norm_path:sub(r + 1)
   end
   return p
 end
@@ -111,17 +143,22 @@ function M.find_node(nodes, fn)
       return node.group_next and { node.group_next } or (node.open and #node.nodes > 0 and node.nodes)
     end)
     :iterate()
-  i = require("nvim-tree.view").is_root_folder_visible() and i or i - 1
+
-  local explorer = require("nvim-tree.core").get_explorer()
+  if node then
-  if explorer and explorer.live_filter.filter then
+    if not node.explorer.view:is_root_folder_visible() then
-    i = i + 1
+      i = i - 1
+    end
+    if node.explorer.live_filter.filter then
+      i = i + 1
+    end
   end
+
   return node, i
 end
 
 -- Find the line number of a node.
 -- Return -1 is node is nil or not found.
----@param node Node|nil
+---@param node Node?
 ---@return integer
 function M.find_node_line(node)
   if not node then
@@ -141,6 +178,21 @@ function M.find_node_line(node)
   return -1
 end
 
+---@param extmarks vim.api.keyset.get_extmark_item[] as per vim.api.nvim_buf_get_extmarks
+---@return number
+function M.extmarks_length(extmarks)
+  local length = 0
+  for _, extmark in ipairs(extmarks) do
+    local details = extmark[4]
+    if details and details.virt_text then
+      for _, text in ipairs(details.virt_text) do
+        length = length + vim.fn.strchars(text[1])
+      end
+    end
+  end
+  return length
+end
+
 -- get the node in the tree state depending on the absolute path of the node
 -- (grouped or hidden too)
 ---@param path string
@@ -174,16 +226,6 @@ function M.get_node_from_path(path)
     :iterate()
 end
 
----Get the highest parent of grouped nodes
----@param node Node
----@return Node node or parent
-function M.get_parent_of_group(node)
-  while node and node.parent and node.parent.group_next do
-    node = node.parent
-  end
-  return node
-end
-
 M.default_format_hidden_count = function(hidden_count, simple)
   local parts = {}
   local total_count = 0
@@ -267,11 +309,51 @@ function M.rename_loaded_buffers(old_path, new_path)
   end
 end
 
+local is_windows_drive = function(path)
+  return (M.is_windows) and (path:match("^%a:\\$") ~= nil)
+end
+
 ---@param path string path to file or directory
 ---@return boolean
 function M.file_exists(path)
-  local _, error = vim.loop.fs_stat(path)
+  if not (M.is_windows or M.is_wsl) then
-  return error == nil
+    local _, error = vim.loop.fs_stat(path)
+    return error == nil
+  end
+
+  -- Windows is case-insensetive, but case-preserving
+  -- If a file's name is being changed into itself
+  -- with different casing, windows will falsely
+  -- report that file is already existing, so a hand-rolled
+  -- implementation of checking for existance is needed.
+  -- Same holds for WSL, since it can sometimes
+  -- access Windows files directly.
+  -- For more details see (#3117).
+
+  if is_windows_drive(path) then
+    return vim.fn.isdirectory(path) == 1
+  end
+
+  local parent = vim.fn.fnamemodify(path, ":h")
+  local filename = vim.fn.fnamemodify(path, ":t")
+
+  local handle = vim.loop.fs_scandir(parent)
+  if not handle then
+    -- File can not exist if its parent directory does not exist
+    return false
+  end
+
+  while true do
+    local name, _ = vim.loop.fs_scandir_next(handle)
+    if not name then
+      break
+    end
+    if name == filename then
+      return true
+    end
+  end
+
+  return false
 end
 
 ---@param path string
@@ -283,6 +365,14 @@ function M.canonical_path(path)
   return path
 end
 
+--- Escapes special characters in string for windows, refer to issue #2862 and #2961 for more details.
+local function escape_special_char_for_windows(path)
+  if has_parentheses_and_brackets(path) then
+    return path:gsub("\\", "/"):gsub("/ ", "\\ ")
+  end
+  return path:gsub("%(", "\\("):gsub("%)", "\\)")
+end
+
 --- Escapes special characters in string if windows else returns unmodified string.
 ---@param path string
 ---@return string|nil
@@ -290,7 +380,7 @@ function M.escape_special_chars(path)
   if path == nil then
     return path
   end
-  return M.is_windows and path:gsub("\\", "/") or path
+  return M.is_windows and escape_special_char_for_windows(path) or path
 end
 
 --- Create empty sub-tables if not present
@@ -319,20 +409,6 @@ end
 ---@param dst_pos string value pos
 ---@param remove boolean
 function M.move_missing_val(src, src_path, src_pos, dst, dst_path, dst_pos, remove)
-  local ok, err = pcall(vim.validate, {
-    src = { src, "table" },
-    src_path = { src_path, "string" },
-    src_pos = { src_pos, "string" },
-    dst = { dst, "table" },
-    dst_path = { dst_path, "string" },
-    dst_pos = { dst_pos, "string" },
-    remove = { remove, "boolean" },
-  })
-  if not ok then
-    notify.warn("move_missing_val: " .. (err or "invalid arguments"))
-    return
-  end
-
   for pos in string.gmatch(src_path, "([^%.]+)%.*") do
     if src[pos] and type(src[pos]) == "table" then
       src = src[pos]
@@ -467,13 +543,16 @@ function M.focus_file(path)
   local _, i = M.find_node(require("nvim-tree.core").get_explorer().nodes, function(node)
     return node.absolute_path == path
   end)
-  require("nvim-tree.view").set_cursor({ i + 1, 1 })
+  local explorer = require("nvim-tree.core").get_explorer()
+  if explorer then
+    explorer.view:set_cursor({ i + 1, 1 })
+  end
 end
 
 ---Focus node passed as parameter if visible, otherwise focus first visible parent.
 ---If none of the parents is visible focus root.
 ---If node is nil do nothing.
----@param node Node|nil node to focus
+---@param node Node? node to focus
 function M.focus_node_or_parent(node)
   local explorer = require("nvim-tree.core").get_explorer()
 
@@ -487,7 +566,7 @@ function M.focus_node_or_parent(node)
     end)
 
     if found_node or node.parent == nil then
-      require("nvim-tree.view").set_cursor({ i + 1, 1 })
+      explorer.view:set_cursor({ i + 1, 1 })
       break
     end
 
@@ -549,14 +628,6 @@ function M.array_remove_nils(array)
   end, array)
 end
 
----@param f fun(node: Node|nil)
----@return function
-function M.inject_node(f)
-  return function()
-    f(require("nvim-tree.lib").get_node_at_cursor())
-  end
-end
-
 --- Is the buffer named NvimTree_[0-9]+ a tree? filetype is "NvimTree" or not readable file.
 --- This is cheap, as the readable test should only ever be needed when resuming a vim session.
 ---@param bufnr number|nil may be 0 or nil for current
@@ -578,4 +649,41 @@ function M.is_nvim_tree_buf(bufnr)
   return false
 end
 
+--- path is an executable file or directory
+---@param absolute_path string
+---@return boolean
+function M.is_executable(absolute_path)
+  if M.is_windows or M.is_wsl then
+    --- executable detection on windows is buggy and not performant hence it is disabled
+    return false
+  else
+    return vim.loop.fs_access(absolute_path, "X") or false
+  end
+end
+
+---@class UtilEnumerateOptionsOpts
+---@field keyset_opts vim.api.keyset.option
+---@field was_set boolean? as per vim.api.keyset.get_option_info
+
+---Option name/values
+---@param opts UtilEnumerateOptionsOpts
+---@return table<string, any>
+function M.enumerate_options(opts)
+  -- enumerate all options, limiting buf and win scopes
+  return vim.tbl_map(function(info)
+    if opts.keyset_opts.buf and info.scope ~= "buf" then
+      return nil
+    elseif opts.keyset_opts.win and info.scope ~= "win" then
+      return nil
+    else
+      -- optional, lazy was_set check
+      if not opts.was_set or vim.api.nvim_get_option_info2(info.name, opts.keyset_opts).was_set then
+        return vim.api.nvim_get_option_value(info.name, opts.keyset_opts)
+      else
+        return nil
+      end
+    end
+  end, vim.api.nvim_get_all_options_info())
+end
+
 return M

lua/nvim-tree/view.lua

@@ -1,615 +0,0 @@
-local events = require("nvim-tree.events")
-local utils = require("nvim-tree.utils")
-local log = require("nvim-tree.log")
-local notify = require("nvim-tree.notify")
-
----@class OpenInWinOpts
----@field hijack_current_buf boolean|nil default true
----@field resize boolean|nil default true
----@field winid number|nil 0 or nil for current
-
-local M = {}
-
-local DEFAULT_MIN_WIDTH = 30
-local DEFAULT_MAX_WIDTH = -1
-local DEFAULT_PADDING = 1
-
-M.View = {
-  adaptive_size = false,
-  centralize_selection = false,
-  tabpages = {},
-  cursors = {},
-  hide_root_folder = false,
-  live_filter = {
-    prev_focused_node = nil,
-  },
-  winopts = {
-    relativenumber = false,
-    number = false,
-    list = false,
-    foldenable = false,
-    winfixwidth = true,
-    winfixheight = true,
-    spell = false,
-    signcolumn = "yes",
-    foldmethod = "manual",
-    foldcolumn = "0",
-    cursorcolumn = false,
-    cursorline = true,
-    cursorlineopt = "both",
-    colorcolumn = "0",
-    wrap = false,
-    winhl = table.concat({
-      "EndOfBuffer:NvimTreeEndOfBuffer",
-      "CursorLine:NvimTreeCursorLine",
-      "CursorLineNr:NvimTreeCursorLineNr",
-      "LineNr:NvimTreeLineNr",
-      "WinSeparator:NvimTreeWinSeparator",
-      "StatusLine:NvimTreeStatusLine",
-      "StatusLineNC:NvimTreeStatuslineNC",
-      "SignColumn:NvimTreeSignColumn",
-      "Normal:NvimTreeNormal",
-      "NormalNC:NvimTreeNormalNC",
-      "NormalFloat:NvimTreeNormalFloat",
-      "FloatBorder:NvimTreeNormalFloatBorder",
-    }, ","),
-  },
-}
-
--- The initial state of a tab
-local tabinitial = {
-  -- The position of the cursor { line, column }
-  cursor = { 0, 0 },
-  -- The NvimTree window number
-  winnr = nil,
-}
-
-local BUFNR_PER_TAB = {}
-local BUFFER_OPTIONS = {
-  swapfile = false,
-  buftype = "nofile",
-  modifiable = false,
-  filetype = "NvimTree",
-  bufhidden = "wipe",
-  buflisted = false,
-}
-
----@param bufnr integer
----@return boolean
-local function matches_bufnr(bufnr)
-  for _, b in pairs(BUFNR_PER_TAB) do
-    if b == bufnr then
-      return true
-    end
-  end
-  return false
-end
-
-local function wipe_rogue_buffer()
-  for _, bufnr in ipairs(vim.api.nvim_list_bufs()) do
-    if not matches_bufnr(bufnr) and utils.is_nvim_tree_buf(bufnr) then
-      pcall(vim.api.nvim_buf_delete, bufnr, { force = true })
-    end
-  end
-end
-
----@param bufnr integer|boolean|nil
-local function create_buffer(bufnr)
-  wipe_rogue_buffer()
-
-  local tab = vim.api.nvim_get_current_tabpage()
-  BUFNR_PER_TAB[tab] = bufnr or vim.api.nvim_create_buf(false, false)
-  vim.api.nvim_buf_set_name(M.get_bufnr(), "NvimTree_" .. tab)
-
-  for option, value in pairs(BUFFER_OPTIONS) do
-    vim.bo[M.get_bufnr()][option] = value
-  end
-
-  require("nvim-tree.keymap").on_attach(M.get_bufnr())
-
-  events._dispatch_tree_attached_post(M.get_bufnr())
-end
-
----@param size (fun():integer)|integer|string
----@return integer
-local function get_size(size)
-  if type(size) == "number" then
-    return size
-  elseif type(size) == "function" then
-    return size()
-  end
-  local size_as_number = tonumber(size:sub(0, -2))
-  local percent_as_decimal = size_as_number / 100
-  return math.floor(vim.o.columns * percent_as_decimal)
-end
-
----@param size (fun():integer)|integer|nil
-local function get_width(size)
-  if size then
-    return get_size(size)
-  else
-    return get_size(M.View.width)
-  end
-end
-
-local move_tbl = {
-  left = "H",
-  right = "L",
-}
-
--- setup_tabpage sets up the initial state of a tab
----@param tabpage integer
-local function setup_tabpage(tabpage)
-  local winnr = vim.api.nvim_get_current_win()
-  M.View.tabpages[tabpage] = vim.tbl_extend("force", M.View.tabpages[tabpage] or tabinitial, { winnr = winnr })
-end
-
-local function set_window_options_and_buffer()
-  pcall(vim.api.nvim_command, "buffer " .. M.get_bufnr())
-  local eventignore = vim.opt.eventignore:get()
-  vim.opt.eventignore = "all"
-  for k, v in pairs(M.View.winopts) do
-    vim.opt_local[k] = v
-  end
-  vim.opt.eventignore = eventignore
-end
-
----@return table
-local function open_win_config()
-  if type(M.View.float.open_win_config) == "function" then
-    return M.View.float.open_win_config()
-  else
-    return M.View.float.open_win_config
-  end
-end
-
-local function open_window()
-  if M.View.float.enable then
-    vim.api.nvim_open_win(0, true, open_win_config())
-  else
-    vim.api.nvim_command("vsp")
-    M.reposition_window()
-  end
-  setup_tabpage(vim.api.nvim_get_current_tabpage())
-  set_window_options_and_buffer()
-end
-
----@param buf integer
----@return boolean
-local function is_buf_displayed(buf)
-  return vim.api.nvim_buf_is_valid(buf) and vim.fn.buflisted(buf) == 1
-end
-
----@return number|nil
-local function get_alt_or_next_buf()
-  local alt_buf = vim.fn.bufnr("#")
-  if is_buf_displayed(alt_buf) then
-    return alt_buf
-  end
-
-  for _, buf in ipairs(vim.api.nvim_list_bufs()) do
-    if is_buf_displayed(buf) then
-      return buf
-    end
-  end
-end
-
-local function switch_buf_if_last_buf()
-  if #vim.api.nvim_list_wins() == 1 then
-    local buf = get_alt_or_next_buf()
-    if buf then
-      vim.cmd("sb" .. buf)
-    else
-      vim.cmd("new")
-    end
-  end
-end
-
--- save_tab_state saves any state that should be preserved across redraws.
----@param tabnr integer
-local function save_tab_state(tabnr)
-  local tabpage = tabnr or vim.api.nvim_get_current_tabpage()
-  M.View.cursors[tabpage] = vim.api.nvim_win_get_cursor(M.get_winnr(tabpage) or 0)
-end
-
----@param tabpage integer
-local function close(tabpage)
-  if not M.is_visible({ tabpage = tabpage }) then
-    return
-  end
-  save_tab_state(tabpage)
-  switch_buf_if_last_buf()
-  local tree_win = M.get_winnr(tabpage)
-  local current_win = vim.api.nvim_get_current_win()
-  for _, win in pairs(vim.api.nvim_tabpage_list_wins(tabpage)) do
-    if vim.api.nvim_win_get_config(win).relative == "" then
-      local prev_win = vim.fn.winnr("#") -- this tab only
-      if tree_win == current_win and prev_win > 0 then
-        vim.api.nvim_set_current_win(vim.fn.win_getid(prev_win))
-      end
-      if vim.api.nvim_win_is_valid(tree_win or 0) then
-        local success, error = pcall(vim.api.nvim_win_close, tree_win or 0, true)
-        if not success then
-          notify.debug("Failed to close window: " .. error)
-          return
-        end
-      end
-      events._dispatch_on_tree_close()
-      return
-    end
-  end
-end
-
-function M.close_this_tab_only()
-  close(vim.api.nvim_get_current_tabpage())
-end
-
-function M.close_all_tabs()
-  for tabpage, _ in pairs(M.View.tabpages) do
-    close(tabpage)
-  end
-end
-
-function M.close()
-  if M.View.tab.sync.close then
-    M.close_all_tabs()
-  else
-    M.close_this_tab_only()
-  end
-end
-
----@param options table|nil
-function M.open(options)
-  if M.is_visible() then
-    return
-  end
-
-  local profile = log.profile_start("view open")
-
-  create_buffer()
-  open_window()
-  M.resize()
-
-  local opts = options or { focus_tree = true }
-  if not opts.focus_tree then
-    vim.cmd("wincmd p")
-  end
-  events._dispatch_on_tree_open()
-
-  log.profile_end(profile)
-end
-
-local function grow()
-  local starts_at = M.is_root_folder_visible(require("nvim-tree.core").get_cwd()) and 1 or 0
-  local lines = vim.api.nvim_buf_get_lines(M.get_bufnr(), starts_at, -1, false)
-  -- number of columns of right-padding to indicate end of path
-  local padding = get_size(M.View.padding)
-
-  -- account for sign/number columns etc.
-  local wininfo = vim.fn.getwininfo(M.get_winnr())
-  if type(wininfo) == "table" and type(wininfo[1]) == "table" then
-    padding = padding + wininfo[1].textoff
-  end
-
-  local resizing_width = M.View.initial_width - padding
-  local max_width
-
-  -- maybe bound max
-  if M.View.max_width == -1 then
-    max_width = -1
-  else
-    max_width = get_width(M.View.max_width) - padding
-  end
-
-  for _, l in pairs(lines) do
-    local count = vim.fn.strchars(l)
-    if resizing_width < count then
-      resizing_width = count
-    end
-    if M.View.adaptive_size and max_width >= 0 and resizing_width >= max_width then
-      resizing_width = max_width
-      break
-    end
-  end
-  M.resize(resizing_width + padding)
-end
-
-function M.grow_from_content()
-  if M.View.adaptive_size then
-    grow()
-  end
-end
-
----@param size string|number|nil
-function M.resize(size)
-  if M.View.float.enable and not M.View.adaptive_size then
-    -- if the floating windows's adaptive size is not desired, then the
-    -- float size should be defined in view.float.open_win_config
-    return
-  end
-
-  if type(size) == "string" then
-    size = vim.trim(size)
-    local first_char = size:sub(1, 1)
-    size = tonumber(size)
-
-    if first_char == "+" or first_char == "-" then
-      size = M.View.width + size
-    end
-  end
-
-  if type(size) == "number" and size <= 0 then
-    return
-  end
-
-  if size then
-    M.View.width = size
-    M.View.height = size
-  end
-
-  if not M.is_visible() then
-    return
-  end
-
-  local winnr = M.get_winnr() or 0
-
-  local new_size = get_width()
-
-  if new_size ~= vim.api.nvim_win_get_width(winnr) then
-    vim.api.nvim_win_set_width(winnr, new_size)
-    if not M.View.preserve_window_proportions then
-      vim.cmd(":wincmd =")
-    end
-  end
-
-  events._dispatch_on_tree_resize(new_size)
-end
-
-function M.reposition_window()
-  local move_to = move_tbl[M.View.side]
-  vim.api.nvim_command("wincmd " .. move_to)
-  M.resize()
-end
-
-local function set_current_win()
-  local current_tab = vim.api.nvim_get_current_tabpage()
-  M.View.tabpages[current_tab].winnr = vim.api.nvim_get_current_win()
-end
-
----Open the tree in the a window
----@param opts OpenInWinOpts|nil
-function M.open_in_win(opts)
-  opts = opts or { hijack_current_buf = true, resize = true }
-  if opts.winid and vim.api.nvim_win_is_valid(opts.winid) then
-    vim.api.nvim_set_current_win(opts.winid)
-  end
-  create_buffer(opts.hijack_current_buf and vim.api.nvim_get_current_buf())
-  setup_tabpage(vim.api.nvim_get_current_tabpage())
-  set_current_win()
-  set_window_options_and_buffer()
-  if opts.resize then
-    M.reposition_window()
-    M.resize()
-  end
-end
-
-function M.abandon_current_window()
-  local tab = vim.api.nvim_get_current_tabpage()
-  BUFNR_PER_TAB[tab] = nil
-  if M.View.tabpages[tab] then
-    M.View.tabpages[tab].winnr = nil
-  end
-end
-
-function M.abandon_all_windows()
-  for tab, _ in pairs(vim.api.nvim_list_tabpages()) do
-    BUFNR_PER_TAB[tab] = nil
-    if M.View.tabpages[tab] then
-      M.View.tabpages[tab].winnr = nil
-    end
-  end
-end
-
----@param opts table|nil
-function M.is_visible(opts)
-  if opts and opts.tabpage then
-    if M.View.tabpages[opts.tabpage] == nil then
-      return false
-    end
-    local winnr = M.View.tabpages[opts.tabpage].winnr
-    return winnr and vim.api.nvim_win_is_valid(winnr)
-  end
-
-  if opts and opts.any_tabpage then
-    for _, v in pairs(M.View.tabpages) do
-      if v.winnr and vim.api.nvim_win_is_valid(v.winnr) then
-        return true
-      end
-    end
-    return false
-  end
-
-  return M.get_winnr() ~= nil and vim.api.nvim_win_is_valid(M.get_winnr() or 0)
-end
-
----@param opts table|nil
-function M.set_cursor(opts)
-  if M.is_visible() then
-    pcall(vim.api.nvim_win_set_cursor, M.get_winnr(), opts)
-  end
-end
-
----@param winnr number|nil
----@param open_if_closed boolean|nil
-function M.focus(winnr, open_if_closed)
-  local wnr = winnr or M.get_winnr()
-
-  if vim.api.nvim_win_get_tabpage(wnr or 0) ~= vim.api.nvim_win_get_tabpage(0) then
-    M.close()
-    M.open()
-    wnr = M.get_winnr()
-  elseif open_if_closed and not M.is_visible() then
-    M.open()
-  end
-
-  if wnr then
-    vim.api.nvim_set_current_win(wnr)
-  end
-end
-
---- Retrieve the winid of the open tree.
----@param opts ApiTreeWinIdOpts|nil
----@return number|nil winid unlike get_winnr(), this returns nil if the nvim-tree window is not visible
-function M.winid(opts)
-  local tabpage = opts and opts.tabpage
-  if tabpage == 0 then
-    tabpage = vim.api.nvim_get_current_tabpage()
-  end
-  if M.is_visible({ tabpage = tabpage }) then
-    return M.get_winnr(tabpage)
-  else
-    return nil
-  end
-end
-
---- Restores the state of a NvimTree window if it was initialized before.
-function M.restore_tab_state()
-  local tabpage = vim.api.nvim_get_current_tabpage()
-  M.set_cursor(M.View.cursors[tabpage])
-end
-
---- Returns the window number for nvim-tree within the tabpage specified
----@param tabpage number|nil (optional) the number of the chosen tabpage. Defaults to current tabpage.
----@return number|nil
-function M.get_winnr(tabpage)
-  tabpage = tabpage or vim.api.nvim_get_current_tabpage()
-  local tabinfo = M.View.tabpages[tabpage]
-  if tabinfo and tabinfo.winnr and vim.api.nvim_win_is_valid(tabinfo.winnr) then
-    return tabinfo.winnr
-  end
-end
-
---- Returns the current nvim tree bufnr
----@return number
-function M.get_bufnr()
-  return BUFNR_PER_TAB[vim.api.nvim_get_current_tabpage()]
-end
-
----@param bufnr number
----@return boolean
-function M.is_buf_valid(bufnr)
-  return bufnr and vim.api.nvim_buf_is_valid(bufnr) and vim.api.nvim_buf_is_loaded(bufnr)
-end
-
-function M._prevent_buffer_override()
-  local view_winnr = M.get_winnr()
-  local view_bufnr = M.get_bufnr()
-
-  -- need to schedule to let the new buffer populate the window
-  -- because this event needs to be run on bufWipeout.
-  -- Otherwise the curwin/curbuf would match the view buffer and the view window.
-  vim.schedule(function()
-    local curwin = vim.api.nvim_get_current_win()
-    local curwinconfig = vim.api.nvim_win_get_config(curwin)
-    local curbuf = vim.api.nvim_win_get_buf(curwin)
-    local bufname = vim.api.nvim_buf_get_name(curbuf)
-
-    if not bufname:match("NvimTree") then
-      for i, tabpage in ipairs(M.View.tabpages) do
-        if tabpage.winnr == view_winnr then
-          M.View.tabpages[i] = nil
-          break
-        end
-      end
-    end
-    if curwin ~= view_winnr or bufname == "" or curbuf == view_bufnr then
-      return
-    end
-
-    -- patch to avoid the overriding window to be fixed in size
-    -- might need a better patch
-    vim.cmd("setlocal nowinfixwidth")
-    vim.cmd("setlocal nowinfixheight")
-    M.open({ focus_tree = false })
-
-    local explorer = require("nvim-tree.core").get_explorer()
-    if explorer then
-      explorer.renderer:draw()
-    end
-
-    pcall(vim.api.nvim_win_close, curwin, { force = true })
-
-    -- to handle opening a file using :e when nvim-tree is on floating mode
-    -- falling back to the current window instead of creating a new one
-    if curwinconfig.relative ~= "" then
-      require("nvim-tree.actions.node.open-file").fn("edit_in_place", bufname)
-    else
-      require("nvim-tree.actions.node.open-file").fn("edit", bufname)
-    end
-  end)
-end
-
----@param cwd string|nil
----@return boolean
-function M.is_root_folder_visible(cwd)
-  return cwd ~= "/" and not M.View.hide_root_folder
-end
-
--- used on ColorScheme event
-function M.reset_winhl()
-  local winnr = M.get_winnr()
-  if winnr and vim.api.nvim_win_is_valid(winnr) then
-    vim.wo[M.get_winnr()].winhl = M.View.winopts.winhl
-  end
-end
-
----Check if width determined or calculated on-fly
----@return boolean
-function M.is_width_determined()
-  return type(M.View.width) ~= "function"
-end
-
----Configure width-related config
----@param width string|function|number|table|nil
-function M.configure_width(width)
-  if type(width) == "table" then
-    M.View.adaptive_size = true
-    M.View.width = width.min or DEFAULT_MIN_WIDTH
-    M.View.max_width = width.max or DEFAULT_MAX_WIDTH
-    M.View.padding = width.padding or DEFAULT_PADDING
-  elseif width == nil then
-    if M.config.width ~= nil then
-      -- if we had input config - fallback to it
-      M.configure_width(M.config.width)
-    else
-      -- otherwise - restore initial width
-      M.View.width = M.View.initial_width
-    end
-  else
-    M.View.adaptive_size = false
-    M.View.width = width
-  end
-end
-
-function M.setup(opts)
-  local options = opts.view or {}
-  M.View.centralize_selection = options.centralize_selection
-  M.View.side = (options.side == "right") and "right" or "left"
-  M.View.height = options.height
-  M.View.hide_root_folder = opts.renderer.root_folder_label == false
-  M.View.tab = opts.tab
-  M.View.preserve_window_proportions = options.preserve_window_proportions
-  M.View.winopts.cursorline = options.cursorline
-  M.View.winopts.number = options.number
-  M.View.winopts.relativenumber = options.relativenumber
-  M.View.winopts.signcolumn = options.signcolumn
-  M.View.float = options.float
-  M.on_attach = opts.on_attach
-
-  M.config = options
-  M.configure_width(options.width)
-
-  M.View.initial_width = get_width()
-end
-
-return M

lua/nvim-tree/watcher.lua

@@ -2,21 +2,9 @@ local notify = require("nvim-tree.notify")
 local log = require("nvim-tree.log")
 local utils = require("nvim-tree.utils")
 
-local M = {
+local Class = require("nvim-tree.classic")
-  config = {},
-}
 
----@class Event
+local MESSAGE_EMFILE = "fs.inotify.max_user_watches exceeded, see https://github.com/nvim-tree/nvim-tree.lua/wiki/Troubleshooting"
-local Event = {
-  _events = {},
-}
-Event.__index = Event
-
----@class Watcher
-local Watcher = {
-  _watchers = {},
-}
-Watcher.__index = Watcher
 
 local FS_EVENT_FLAGS = {
   -- inotify or equivalent will be used; fallback to stat has not yet been implemented
@@ -25,20 +13,49 @@ local FS_EVENT_FLAGS = {
   recursive = false,
 }
 
----@param path string
+local M = {
----@return Event|nil
+  config = {},
-function Event:new(path)
+}
-  log.line("watcher", "Event:new '%s'", path)
 
-  local e = setmetatable({
+---Registry of all events
-    _path = path,
+---@type Event[]
-    _fs_event = nil,
+local events = {}
-    _listeners = {},
-  }, Event)
 
-  if e:start() then
+---@class (exact) Event: Class
-    Event._events[path] = e
+---@field destroyed boolean
-    return e
+---@field private path string
+---@field private fs_event uv.uv_fs_event_t?
+---@field private listeners function[]
+local Event = Class:extend()
+
+---@class Event
+---@overload fun(args: EventArgs): Event
+
+---@class (exact) EventArgs
+---@field path string
+
+---@protected
+---@param args EventArgs
+function Event:new(args)
+  self.destroyed = false
+  self.path      = args.path
+  self.fs_event  = nil
+  self.listeners = {}
+end
+
+---Static factory method
+---Creates and starts an Event
+---nil on failure to start
+---@param args EventArgs
+---@return Event?
+function Event:create(args)
+  log.line("watcher", "Event:create '%s'", args.path)
+
+  local event = Event(args)
+
+  if event:start() then
+    events[event.path] = event
+    return event
   else
     return nil
   end
@@ -46,21 +63,33 @@ end
 
 ---@return boolean
 function Event:start()
-  log.line("watcher", "Event:start '%s'", self._path)
+  log.line("watcher", "Event:start '%s'", self.path)
 
   local rc, _, name
 
-  self._fs_event, _, name = vim.loop.new_fs_event()
+  self.fs_event, _, name = vim.loop.new_fs_event()
-  if not self._fs_event then
+  if not self.fs_event then
-    self._fs_event = nil
+    self.fs_event = nil
-    notify.warn(string.format("Could not initialize an fs_event watcher for path %s : %s", self._path, name))
+    notify.warn(string.format("Could not initialize an fs_event watcher for path %s : %s", self.path, name))
     return false
   end
 
   local event_cb = vim.schedule_wrap(function(err, filename)
     if err then
-      log.line("watcher", "event_cb '%s' '%s' FAIL : %s", self._path, filename, err)
+      log.line("watcher", "event_cb '%s' '%s' FAIL : %s", self.path, filename, err)
-      local message = string.format("File system watcher failed (%s) for path %s, halting watcher.", err, self._path)
+
+      -- do nothing if watchers have already been disabled
+      if not M.config.filesystem_watchers.enable then
+        return
+      end
+
+      -- EMFILE is catastrophic
+      if name == "EMFILE" then
+        M.disable_watchers(MESSAGE_EMFILE)
+        return
+      end
+
+      local message = string.format("File system watcher failed (%s) for path %s, halting watcher.", err, self.path)
       if err == "EPERM" and (utils.is_windows or utils.is_wsl) then
         -- on directory removal windows will cascade the filesystem events out of order
         log.line("watcher", message)
@@ -69,19 +98,19 @@ function Event:start()
         self:destroy(message)
       end
     else
-      log.line("watcher", "event_cb '%s' '%s'", self._path, filename)
+      log.line("watcher", "event_cb '%s' '%s'", self.path, filename)
-      for _, listener in ipairs(self._listeners) do
+      for _, listener in ipairs(self.listeners) do
         listener(filename)
       end
     end
   end)
 
-  rc, _, name = self._fs_event:start(self._path, FS_EVENT_FLAGS, event_cb)
+  rc, _, name = self.fs_event:start(self.path, FS_EVENT_FLAGS, event_cb)
   if rc ~= 0 then
     if name == "EMFILE" then
-      M.disable_watchers("fs.inotify.max_user_watches exceeded, see https://github.com/nvim-tree/nvim-tree.lua/wiki/Troubleshooting")
+      M.disable_watchers(MESSAGE_EMFILE)
     else
-      notify.warn(string.format("Could not start the fs_event watcher for path %s : %s", self._path, name))
+      notify.warn(string.format("Could not start the fs_event watcher for path %s : %s", self.path, name))
     end
     return false
   end
@@ -91,81 +120,114 @@ end
 
 ---@param listener function
 function Event:add(listener)
-  table.insert(self._listeners, listener)
+  table.insert(self.listeners, listener)
 end
 
 ---@param listener function
 function Event:remove(listener)
-  utils.array_remove(self._listeners, listener)
+  utils.array_remove(self.listeners, listener)
-  if #self._listeners == 0 then
+  if #self.listeners == 0 then
     self:destroy()
   end
 end
 
 ---@param message string|nil
 function Event:destroy(message)
-  log.line("watcher", "Event:destroy '%s'", self._path)
+  log.line("watcher", "Event:destroy '%s'", self.path)
 
-  if self._fs_event then
+  if self.fs_event then
     if message then
       notify.warn(message)
     end
 
-    local rc, _, name = self._fs_event:stop()
+    local rc, _, name = self.fs_event:stop()
     if rc ~= 0 then
-      notify.warn(string.format("Could not stop the fs_event watcher for path %s : %s", self._path, name))
+      notify.warn(string.format("Could not stop the fs_event watcher for path %s : %s", self.path, name))
     end
-    self._fs_event = nil
+    self.fs_event = nil
   end
 
-  Event._events[self._path] = nil
-
   self.destroyed = true
+  events[self.path] = nil
 end
 
----@param path string
+---Registry of all watchers
----@param files string[]|nil
+---@type Watcher[]
----@param callback function
+local watchers = {}
----@param data table
+
+---@class (exact) Watcher: Class
+---@field data table user data
+---@field destroyed boolean
+---@field private path string
+---@field private callback fun(watcher: Watcher)
+---@field private files string[]?
+---@field private listener fun(filename: string)?
+---@field private event Event
+local Watcher = Class:extend()
+
+---@class Watcher
+---@overload fun(args: WatcherArgs): Watcher
+
+---@class (exact) WatcherArgs
+---@field path string
+---@field files string[]|nil
+---@field callback fun(watcher: Watcher)
+---@field data table? user data
+
+---@protected
+---@param args WatcherArgs
+function Watcher:new(args)
+  self.data      = args.data
+  self.destroyed = false
+  self.path      = args.path
+  self.callback  = args.callback
+  self.files     = args.files
+  self.listener  = nil
+end
+
+---Static factory method
+---Creates and starts a Watcher
+---nil on failure to create Event
+---@param args WatcherArgs
 ---@return Watcher|nil
-function Watcher:new(path, files, callback, data)
+function Watcher:create(args)
-  log.line("watcher", "Watcher:new '%s' %s", path, vim.inspect(files))
+  log.line("watcher", "Watcher:create '%s' %s", args.path, vim.inspect(args.files))
 
-  local w = setmetatable(data, Watcher)
+  local event = events[args.path] or Event:create({ path = args.path })
-
+  if not event then
-  w._event = Event._events[path] or Event:new(path)
-  w._listener = nil
-  w._path = path
-  w._files = files
-  w._callback = callback
-
-  if not w._event then
     return nil
   end
 
-  w:start()
+  local watcher = Watcher(args)
 
-  table.insert(Watcher._watchers, w)
+  watcher.event = event
 
-  return w
+  watcher:start()
+
+  table.insert(watchers, watcher)
+
+  return watcher
 end
 
 function Watcher:start()
-  self._listener = function(filename)
+  self.listener = function(filename)
-    if not self._files or vim.tbl_contains(self._files, filename) then
+    if not self.files or vim.tbl_contains(self.files, filename) then
-      self._callback(self)
+      self.callback(self)
     end
   end
 
-  self._event:add(self._listener)
+  self.event:add(self.listener)
 end
 
 function Watcher:destroy()
-  log.line("watcher", "Watcher:destroy '%s'", self._path)
+  log.line("watcher", "Watcher:destroy '%s'", self.path)
 
-  self._event:remove(self._listener)
+  self.event:remove(self.listener)
 
-  utils.array_remove(Watcher._watchers, self)
+  utils.array_remove(
+    watchers,
+    self
+  )
 
   self.destroyed = true
 end
@@ -183,11 +245,11 @@ end
 function M.purge_watchers()
   log.line("watcher", "purge_watchers")
 
-  for _, w in ipairs(utils.array_shallow_clone(Watcher._watchers)) do
+  for _, w in ipairs(utils.array_shallow_clone(watchers)) do
     w:destroy()
   end
 
-  for _, e in pairs(Event._events) do
+  for _, e in pairs(events) do
     e:destroy()
   end
 end