From 2c71ffcc0d05a09f497c5bf14a45eeb9024d4e3c Mon Sep 17 00:00:00 2001
From: Alexander Courtis <alex@courtis.org>
Date: Sat, 23 Apr 2022 18:45:23 +1000
Subject: [PATCH] add actions.change_dir.restrict_above_cwd (#1171)

---
 README.md                            |  1 +
 doc/nvim-tree-lua.txt                |  6 ++++++
 lua/nvim-tree.lua                    |  1 +
 lua/nvim-tree/actions/change-dir.lua | 10 +++-------
 4 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index 699eec16..b2509f28 100644
--- a/README.md
+++ b/README.md
@@ -194,6 +194,7 @@ require'nvim-tree'.setup { -- BEGIN_DEFAULT_OPTS
     change_dir = {
       enable = true,
       global = false,
+      restrict_above_cwd = false,
     },
     open_file = {
       quit_on_open = false,
diff --git a/doc/nvim-tree-lua.txt b/doc/nvim-tree-lua.txt
index 243fcf0e..addc714f 100644
--- a/doc/nvim-tree-lua.txt
+++ b/doc/nvim-tree-lua.txt
@@ -163,6 +163,7 @@ function.
         change_dir = {
           enable = true,
           global = false,
+          restrict_above_cwd = false,
         },
         open_file = {
           quit_on_open = false,
@@ -486,6 +487,11 @@ Here is a list of the options available in the setup call:
       type: `boolean`
       default: `false`
 
+  - |actions.change_dir.restrict_above_cwd|: restrict changing to a directory
+    above the global current working directory.
+      type: `boolean`
+      default: `false`
+
   - |actions.open_file.quit_on_open|: closes the explorer when opening a file.
     It will also disable preventing a buffer overriding the tree.
       type: `boolean`
diff --git a/lua/nvim-tree.lua b/lua/nvim-tree.lua
index 4e8b49b3..651bbf62 100644
--- a/lua/nvim-tree.lua
+++ b/lua/nvim-tree.lua
@@ -388,6 +388,7 @@ local DEFAULT_OPTS = { -- BEGIN_DEFAULT_OPTS
     change_dir = {
       enable = true,
       global = false,
+      restrict_above_cwd = false,
     },
     open_file = {
       quit_on_open = false,
diff --git a/lua/nvim-tree/actions/change-dir.lua b/lua/nvim-tree/actions/change-dir.lua
index 5c0a7e91..1de542b7 100644
--- a/lua/nvim-tree/actions/change-dir.lua
+++ b/lua/nvim-tree/actions/change-dir.lua
@@ -7,10 +7,6 @@ local diagnostics = require "nvim-tree.diagnostics"
 
 local M = {
   current_tab = a.nvim_get_current_tabpage(),
-  options = {
-    global = false,
-    change_cwd = true,
-  },
 }
 
 function M.fn(name, with_open)
@@ -20,6 +16,7 @@ function M.fn(name, with_open)
 
   local foldername = name == ".." and vim.fn.fnamemodify(utils.path_remove_trailing(core.get_cwd()), ":h") or name
   local no_cwd_change = vim.fn.expand(foldername) == core.get_cwd()
+    or M.options.restrict_above_cwd and foldername < vim.fn.getcwd(-1, -1)
   local new_tab = a.nvim_get_current_tabpage()
   local is_window = (vim.v.event.scope == "window" or vim.v.event.changed_window) and new_tab == M.current_tab
   if no_cwd_change or is_window then
@@ -32,7 +29,7 @@ end
 function M.force_dirchange(foldername, with_open)
   local ps = log.profile_start("change dir %s", foldername)
 
-  if M.options.change_cwd and vim.tbl_isempty(vim.v.event) then
+  if M.options.enable and vim.tbl_isempty(vim.v.event) then
     if M.options.global then
       vim.cmd("cd " .. vim.fn.fnameescape(foldername))
     else
@@ -51,8 +48,7 @@ function M.force_dirchange(foldername, with_open)
 end
 
 function M.setup(options)
-  M.options.change_cwd = options.actions.change_dir.enable
-  M.options.global = options.actions.change_dir.global
+  M.options = options.actions.change_dir
 end
 
 return M