Rewrite: rewrite the whole api

- The tree is created asynchronously
- More solid logic for opening and closing the tree
- smart rendering
- smart updates

lua/lib/colors.lua

@@ -1,11 +1,31 @@
 local api = vim.api
-local get_colors = require 'lib/config'.get_colors
 
-local colors = get_colors()
+local function get_color_from_hl(hl_name, fallback)
+  local id = vim.api.nvim_get_hl_id_by_name(hl_name)
+  if not id then return fallback end
 
-local M = {}
+  local hl = vim.api.nvim_get_hl_by_id(id, true)
+  if not hl or not hl.foreground then return fallback end
+
+  return hl.foreground
+end
+
+local function get_colors()
+  return {
+    red      = vim.g.terminal_color_1  or get_color_from_hl('Keyword', 'Red'),
+    green    = vim.g.terminal_color_2  or get_color_from_hl('Character', 'Green'),
+    yellow   = vim.g.terminal_color_3  or get_color_from_hl('PreProc', 'Yellow'),
+    blue     = vim.g.terminal_color_4  or get_color_from_hl('Include', 'Blue'),
+    purple   = vim.g.terminal_color_5  or get_color_from_hl('Define', 'Purple'),
+    cyan     = vim.g.terminal_color_6  or get_color_from_hl('Conditional', 'Cyan'),
+    dark_red = vim.g.terminal_color_9  or get_color_from_hl('Keyword', 'DarkRed'),
+    orange   = vim.g.terminal_color_11 or get_color_from_hl('Number', 'Orange'),
+  }
+end
+
+local function get_hl_groups() 
+  local colors = get_colors()
 
-local function create_hl() 
   return {
     Symlink = { gui = 'bold', fg = colors.cyan },
     FolderName = { gui = 'bold', fg = colors.blue },
@@ -22,6 +42,7 @@ local function create_hl()
     JsonIcon = { fg = colors.yellow },
 
     LuaIcon = { fg = '#42a5f5' },
+    GoIcon = { fg = '#7Fd5EA' },
     PythonIcon = { fg = colors.green },
     ShellIcon = { fg = colors.green },
     JavascriptIcon = { fg = colors.yellow },
@@ -40,25 +61,52 @@ local function create_hl()
   }
 end
 
-local HIGHLIGHTS = create_hl()
+local function get_links() 
+  return {
+    Normal = 'Normal',
+    EndOfBuffer = 'EndOfBuffer',
+    CursorLine = 'CursorLine',
+    VertSplit = 'VertSplit',
+    CursorColumn = 'CursorColumn'
+  }
+end
+
+local M = {}
 
-local LINKS = {
-  Normal = 'Normal',
-  EndOfBuffer = 'EndOfBuffer',
-  CursorLine = 'CursorLine',
-  VertSplit = 'VertSplit',
-  CursorColumn = 'CursorColumn'
+M.ft_to_hl_group = {
+  ['LICENSE'] = 'LicenseIcon';
+  ['vim'] = 'VimIcon';
+  ['c'] = 'CIcon';
+  ['cpp'] = 'CIcon';
+  ['python'] = 'PythonIcon';
+  ['lua'] = 'LuaIcon';
+  ['rust'] = 'RustIcon';
+  ['sh'] = 'ShellIcon';
+  ['bash'] = 'ShellIcon';
+  ['zsh'] = 'ShellIcon';
+  ['markdown'] = 'MarkdownIcon';
+  ['json'] = 'JsonIcon';
+  ['toml'] = 'TomlIcon';
+  ['go'] = 'GoIcon';
+  ['yaml'] = 'YamlIcon';
+  ['conf'] = 'GitignoreIcon';
+  ['javascript'] = 'JavascriptIcon';
+  ['typescript'] = 'TypescriptIcon';
+  ['jsx'] = 'ReactIcon';
+  ['tsx'] = 'ReactIcon';
+  ['html'] = 'HtmlIcon';
+  ['htm'] = 'HtmlIcon';
 }
 
-function M.init_colors()
-  colors = get_colors()
-  HIGHLIGHTS = create_hl()
-  for k, d in pairs(HIGHLIGHTS) do
+function M.setup()
+  local higlight_groups = get_hl_groups()
+  for k, d in pairs(higlight_groups) do
     local gui = d.gui or 'NONE'
     api.nvim_command('hi def LuaTree'..k..' gui='..gui..' guifg='..d.fg)
   end
 
-  for k, d in pairs(LINKS) do
+  local links = get_links()
+  for k, d in pairs(links) do
     api.nvim_command('hi def link LuaTree'..k..' '..d)
   end
 end

lua/lib/config.lua

@@ -1,57 +1,28 @@
-local api = vim.api
-
 local M = {}
 
-local function get(var, fallback)
-  if api.nvim_call_function('exists', { var }) == 1 then
-    return api.nvim_get_var(var)
-  else
-    return fallback
-  end
-end
-
-local function get_color_from_hl(hl_name, fallback)
-  local id = api.nvim_get_hl_id_by_name(hl_name)
-  if not id then return fallback end
+function M.get_icon_state()
+  local has_devicons = vim.fn.exists("*WebDevIconsGetFileTypeSymbol") == 1
+  local show_icons = vim.g.lua_tree_show_icons or { git = 1, folders = 1, files = 1 }
 
-  local hl = api.nvim_get_hl_by_id(id, true)
-  if not hl or not hl.foreground then return fallback end
-
-  return hl.foreground
+  return {
+    show_file_icon = has_devicons and show_icons.files == 1,
+    show_folder_icon = show_icons.folders == 1,
+    show_git_icon = show_icons.git == 1
+  }
 end
 
-local HAS_DEV_ICONS = api.nvim_call_function('exists', { "*WebDevIconsGetFileTypeSymbol" }) == 1
-
-local show_icons = get('lua_tree_show_icons', { git = 1, folders = 1, files = 1 })
-
-M.SHOW_FILE_ICON = HAS_DEV_ICONS and show_icons.files == 1
-M.SHOW_FOLDER_ICON = show_icons.folders == 1
-M.SHOW_GIT_ICON = show_icons.git == 1
-
-function M.get_colors()
+function M.get_bindings()
+  local keybindings = vim.g.lua_tree_bindings or {}
   return {
-    red = get('terminal_color_1', get_color_from_hl('Keyword', 'Red')),
-    green = get('terminal_color_2', get_color_from_hl('Character', 'Green')),
-    yellow = get('terminal_color_3', get_color_from_hl('PreProc', 'Yellow')),
-    blue = get('terminal_color_4', get_color_from_hl('Include', 'Blue')),
-    purple = get('terminal_color_5', get_color_from_hl('Define', 'Purple')),
-    cyan = get('terminal_color_6', get_color_from_hl('Conditional', 'Cyan')),
-    orange = get('terminal_color_11', get_color_from_hl('Number', 'Orange')),
-    dark_red = get('terminal_color_9', get_color_from_hl('Keyword', 'DarkRed')),
+    edit        = keybindings.edit or '<CR>',
+    edit_vsplit = keybindings.edit_vsplit or '<C-v>',
+    edit_split  = keybindings.edit_split or '<C-x>',
+    edit_tab    = keybindings.edit_tab or '<C-t>',
+    cd          = keybindings.cd or '<C-]>',
+    create      = keybindings.create or 'a',
+    remove      = keybindings.remove or 'd',
+    rename      = keybindings.rename or 'r',
   }
 end
 
-local keybindings = get('lua_tree_bindings', {});
-
-M.bindings = {
-  edit = keybindings.edit or '<CR>',
-  edit_vsplit = keybindings.edit_vsplit or '<C-v>',
-  edit_split = keybindings.edit_split or '<C-x>',
-  edit_tab = keybindings.edit_tab or '<C-t>',
-  cd = keybindings.cd or '.',
-  create = keybindings.create or 'a',
-  remove = keybindings.remove or 'd',
-  rename = keybindings.rename or 'r',
-}
-
 return M