feat: rewrite git management with sqlite

README.md

@@ -15,6 +15,7 @@ Install with [vim-plug](https://github.com/junegunn/vim-plug):
 ```vim
 " requires
 Plug 'kyazdani42/nvim-web-devicons' " for file icons
+Plug 'tami5/sqlite.lua' " for git integration
 Plug 'kyazdani42/nvim-tree.lua'
 ```
 
@@ -23,7 +24,10 @@ Install with [packer](https://github.com/wbthomason/packer.nvim):
 ```lua
 use {
     'kyazdani42/nvim-tree.lua',
-    requires = 'kyazdani42/nvim-web-devicons',
+    requires = {
+        'kyazdani42/nvim-web-devicons', -- optional, for file icon
+        'tami5/sqlite.lua', -- optional, for git integration
+    },
     config = function() require'nvim-tree'.setup {} end
 }
 ```
@@ -89,6 +93,17 @@ require'nvim-tree'.setup {
     args = {}
   },
 
+  -- git integration (:help nvim-tree.git)
+  git = {
+    -- enable the module
+    enable = true,
+    -- enable gitignore filtering on files
+    ignore = true,
+    -- kills the git integration after this if it takes too long to complete
+    timeout = 5000,
+  },
+
+  -- window/buffer configurations (:help nvim-tree.view)
   view = {
     -- width of the window, can be either a number (columns) or a string in `%`, for left or right side placement
     width = 30,
@@ -111,7 +126,6 @@ require'nvim-tree'.setup {
 
 ```vim
 let g:nvim_tree_ignore = [ '.git', 'node_modules', '.cache' ] "empty by default
-let g:nvim_tree_gitignore = 1 "0 by default
 let g:nvim_tree_quit_on_open = 1 "0 by default, closes the tree when you open a file
 let g:nvim_tree_indent_markers = 1 "0 by default, this option shows indent markers when folders are open
 let g:nvim_tree_hide_dotfiles = 1 "0 by default, this option hides files and folders starting with a dot `.`

doc/nvim-tree-lua.txt

@@ -101,6 +101,10 @@ function.
         cmd  = nil,
         args = {}
       },
+      git = {
+        enable = true,
+        ignore = true,
+      },
       view = {
         width = 30,
         height = 30,
@@ -227,6 +231,34 @@ Here is a list of the options available in the setup call:
     - `NvimTreeLspDiagnosticsInformation`
     - `NvimTreeLspDiagnosticsHint`
 
+*nvim-tree.git*
+- |git|: git integration with icons and colors
+
+  - |git.enable|: enable / disable the feature
+    type: `boolean`
+    default: `true`
+
+  - |git.ignore|: ignore files based on `.gitignore`.
+    will add `ignored=matching` to the integration when `true`. Otherwise will
+    add `ignored=no` to the integration which can lead to better performance.
+
+  - |git.timeout|: kills the git process after some time if it takes too long
+    type: `number`
+    default: `5000` (ms)
+
+  You will still need to configure `g:nvim_tree_show_icons.git` or
+  `g:nvim_tree_git_hl` to be able to see things in the tree. This will be
+  changed in the future versions.
+
+  The git integration is based on `tami5/sqlite.lua`, and is asynchronous in
+  order to avoid blocking the UI when parsing big amounts of statuses.
+  The database is opened on startup and destroyed when neovim exits.
+  Multiple instances of neovim will spawn multiple databases to avoid
+  collisions.
+
+  The configurable timeout will kill the current process and 
+  the git integration if its taking too long.
+
 *nvim-tree.view*
 - |view|: window / buffer setup
 
@@ -281,17 +313,8 @@ An array of strings that the tree won't load and display.
 useful to hide large data/cache folders.
 >
     example: let g:nvim_tree_ignore = [ '.git', 'node_modules' ]
+<
 
-|g:nvim_tree_gitignore|				*g:nvim_tree_gitignore*
-
-Determines whether to include in g:nvim_tree_ignore
-files ignored by git.
-
-Must be:
-    0: not ignored
-    1: ignored files from `git ls-files --others --ignored --exclude-standard --directory`
-
->
 |g:nvim_tree_show_icons|			        *g:nvim_tree_show_icons*
 
 Dictionary, if your terminal or font doesn't support certain unicode

lua/nvim-tree.lua

@@ -179,10 +179,6 @@ function M.on_keypress(mode)
   end
 end
 
-function M.refresh()
-  lib.refresh_tree()
-end
-
 function M.print_clipboard()
   fs.print_clipboard()
 end
@@ -227,7 +223,7 @@ function M.on_enter(opts)
     M.hijack_current_window()
   end
 
-  lib.init(should_open, should_open)
+  lib.init(should_open)
 end
 
 local function is_file_readable(fname)
@@ -242,7 +238,7 @@ local function update_base_dir_with_filepath(filepath, bufnr)
 
   local ft = api.nvim_buf_get_option(bufnr, 'filetype') or ""
   for _, value in pairs(_config.update_focused_file.ignore_list) do
-    if vim.fn.stridx(filepath, value) ~= -1 or vim.fn.stridx(ft, value) ~= -1 then
+    if utils.str_find(filepath, value) or utils.str_find(ft, value) then
       return
     end
   end
@@ -358,7 +354,7 @@ local function setup_vim_commands()
     command! NvimTreeClose lua require'nvim-tree'.close()
     command! NvimTreeToggle lua require'nvim-tree'.toggle(false)
     command! NvimTreeFocus lua require'nvim-tree'.focus()
-    command! NvimTreeRefresh lua require'nvim-tree'.refresh()
+    command! NvimTreeRefresh lua require'nvim-tree.lib'.refresh_tree()
     command! NvimTreeClipboard lua require'nvim-tree'.print_clipboard()
     command! NvimTreeFindFile lua require'nvim-tree'.find_file(true)
     command! NvimTreeFindFileToggle lua require'nvim-tree'.toggle(true)
@@ -380,8 +376,8 @@ local function setup_autocommands(opts)
     """ reset highlights when colorscheme is changed
     au ColorScheme * lua require'nvim-tree'.reset_highlight()
 
-    au BufWritePost * lua require'nvim-tree'.refresh()
-    au User FugitiveChanged,NeogitStatusRefreshed lua require'nvim-tree'.refresh()
+    au BufWritePost * lua require'nvim-tree.lib'.refresh_tree()
+    au User FugitiveChanged,NeogitStatusRefreshed lua require'nvim-tree.lib'.reload_git()
   ]]
 
   if opts.auto_close then
@@ -399,6 +395,7 @@ local function setup_autocommands(opts)
   if opts.update_focused_file.enable then
     vim.cmd "au BufEnter * lua require'nvim-tree'.find_file(false)"
   end
+  vim.cmd "au BufUnload NvimTree lua require'nvim-tree.view'.View.tabpages = {}"
 
   vim.cmd "augroup end"
 end
@@ -434,6 +431,11 @@ local DEFAULT_OPTS = {
       error = "",
     }
   },
+  git = {
+    enable = true,
+    ignore = true,
+    timeout = 400,
+  }
 }
 
 function M.setup(conf)
@@ -462,6 +464,7 @@ function M.setup(conf)
   require'nvim-tree.colors'.setup()
   require'nvim-tree.view'.setup(opts.view or {})
   require'nvim-tree.diagnostics'.setup(opts)
+  require'nvim-tree.git'.setup(opts)
 
   setup_autocommands(opts)
   setup_vim_commands()

lua/nvim-tree/config.lua

@@ -58,12 +58,6 @@ function M.get_icon_state()
   }
 end
 
-function M.use_git()
-  return M.get_icon_state().show_git_icon
-    or vim.g.nvim_tree_git_hl == 1
-    or vim.g.nvim_tree_gitignore == 1
-end
-
 function M.nvim_tree_callback(callback_name)
   return string.format(":lua require'nvim-tree'.on_keypress('%s')<CR>", callback_name)
 end

lua/nvim-tree/fs.lua

@@ -34,7 +34,7 @@ local function create_file(file)
     else
       luv.fs_close(fd)
       events._dispatch_file_created(file)
-      lib.refresh_tree(true)
+      lib.refresh_tree()
       focus_file(file)
     end
   end))
@@ -98,7 +98,7 @@ function M.create(node)
   end
   api.nvim_out_write(ans..' was properly created\n')
   events._dispatch_folder_created(ans)
-  lib.refresh_tree(true)
+  lib.refresh_tree()
   focus_file(ans)
 end
 
@@ -239,7 +239,7 @@ local function do_paste(node, action_type, action_fn)
   end
 
   clipboard[action_type] = {}
-  return lib.refresh_tree(true)
+  return lib.refresh_tree()
 end
 
 local function add_to_clipboard(node, clip)
@@ -276,7 +276,7 @@ function M.remove(node)
       events._dispatch_file_removed(node.absolute_path)
       clear_buffer(node.absolute_path)
     end
-    lib.refresh_tree(true)
+    lib.refresh_tree()
   end
 end
 
@@ -298,7 +298,7 @@ function M.rename(with_sub)
     api.nvim_out_write(node.absolute_path..' ➜ '..new_name..'\n')
     rename_loaded_buffers(node.absolute_path, new_name)
     events._dispatch_node_renamed(abs_path, new_name)
-    lib.refresh_tree(true)
+    lib.refresh_tree()
   end
 end