refactor: improve API readability and tidy actions submodules (#2593)

* refactor: improve API readability, tidy actions modules

* Apply requested changes

* `actions/reloaders/reloaders.lua` -> `actions/reloaders.lua`

---------

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

lua/nvim-tree.lua

@@ -5,14 +5,12 @@ local renderer = require "nvim-tree.renderer"
 local view = require "nvim-tree.view"
 local commands = require "nvim-tree.commands"
 local utils = require "nvim-tree.utils"
-local change_dir = require "nvim-tree.actions.root.change-dir"
+local actions = require "nvim-tree.actions"
 local legacy = require "nvim-tree.legacy"
 local core = require "nvim-tree.core"
-local reloaders = require "nvim-tree.actions.reloaders.reloaders"
 local git = require "nvim-tree.git"
 local filters = require "nvim-tree.explorer.filters"
 local modified = require "nvim-tree.modified"
-local find_file = require "nvim-tree.actions.tree.find-file"
 local events = require "nvim-tree.events"
 local notify = require "nvim-tree.notify"
 
@@ -51,7 +49,7 @@ function M.change_root(path, bufnr)
   -- test if in vim_cwd
   if utils.path_relative(path, vim_cwd) ~= path then
     if vim_cwd ~= cwd then
-      change_dir.fn(vim_cwd)
+      actions.root.change_dir.fn(vim_cwd)
     end
     return
   end
@@ -62,19 +60,19 @@ function M.change_root(path, bufnr)
 
   -- otherwise test M.init_root
   if _config.prefer_startup_root and utils.path_relative(path, M.init_root) ~= path then
-    change_dir.fn(M.init_root)
+    actions.root.change_dir.fn(M.init_root)
     return
   end
   -- otherwise root_dirs
   for _, dir in pairs(_config.root_dirs) do
     dir = vim.fn.fnamemodify(dir, ":p")
     if utils.path_relative(path, dir) ~= path then
-      change_dir.fn(dir)
+      actions.root.change_dir.fn(dir)
       return
     end
   end
   -- finally fall back to the folder containing the file
-  change_dir.fn(vim.fn.fnamemodify(path, ":p:h"))
+  actions.root.change_dir.fn(vim.fn.fnamemodify(path, ":p:h"))
 end
 
 function M.tab_enter()
@@ -87,7 +85,7 @@ function M.tab_enter()
       end
     end
     view.open { focus_tree = false }
-    require("nvim-tree.renderer").draw()
+    renderer.draw()
   end
 end
 
@@ -103,7 +101,7 @@ function M.open_on_directory()
     return
   end
 
-  change_dir.force_dirchange(bufname, true)
+  actions.root.change_dir.force_dirchange(bufname, true)
 end
 
 function M.reset_highlight()
@@ -154,11 +152,11 @@ end
 ---@param name string|nil
 function M.change_dir(name)
   if name then
-    change_dir.fn(name)
+    actions.root.change_dir.fn(name)
   end
 
   if _config.update_focused_file.enable then
-    find_file.fn()
+    actions.tree.find_file.fn()
   end
 end
 
@@ -191,7 +189,7 @@ local function setup_autocommands(opts)
   create_nvim_tree_autocmd("BufWritePost", {
     callback = function()
       if opts.auto_reload_on_write and not opts.filesystem_watchers.enable then
-        reloaders.reload_explorer()
+        actions.reloaders.reload_explorer()
       end
     end,
   })
@@ -201,7 +199,7 @@ local function setup_autocommands(opts)
       -- update opened file buffers
       if (filters.config.filter_no_buffer or renderer.config.highlight_opened_files ~= "none") and vim.bo[data.buf].buftype == "" then
         utils.debounce("Buf:filter_buffer", opts.view.debounce_delay, function()
-          reloaders.reload_explorer()
+          actions.reloaders.reload_explorer()
         end)
       end
     end,
@@ -212,7 +210,7 @@ local function setup_autocommands(opts)
       -- update opened file buffers
       if (filters.config.filter_no_buffer or renderer.config.highlight_opened_files ~= "none") and vim.bo[data.buf].buftype == "" then
         utils.debounce("Buf:filter_buffer", opts.view.debounce_delay, function()
-          reloaders.reload_explorer(nil, data.buf)
+          actions.reloaders.reload_explorer(nil, data.buf)
         end)
       end
     end,
@@ -222,7 +220,7 @@ local function setup_autocommands(opts)
     pattern = { "FugitiveChanged", "NeogitStatusRefreshed" },
     callback = function()
       if not opts.filesystem_watchers.enable and opts.git.enable then
-        reloaders.reload_git()
+        actions.reloaders.reload_git()
       end
     end,
   })
@@ -251,7 +249,7 @@ local function setup_autocommands(opts)
     create_nvim_tree_autocmd("BufEnter", {
       callback = function()
         utils.debounce("BufEnter:find_file", opts.view.debounce_delay, function()
-          find_file.fn()
+          actions.tree.find_file.fn()
         end)
       end,
     })
@@ -266,7 +264,7 @@ local function setup_autocommands(opts)
     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
-          reloaders.reload_explorer()
+          actions.reloaders.reload_explorer()
         end
       end
     end,
@@ -317,7 +315,7 @@ local function setup_autocommands(opts)
       callback = function()
         utils.debounce("Buf:modified", opts.view.debounce_delay, function()
           modified.reload()
-          reloaders.reload_explorer()
+          actions.reloaders.reload_explorer()
         end)
       end,
     })