feat: add ability for the tree to change tab

- remove tags file
- open/close the tree on `TabEnter` with the option `g:lua_tree_tab_open`

README.md

@@ -34,6 +34,7 @@ let g:lua_tree_indent_markers = 1 "0 by default, this option shows indent marker
 let g:lua_tree_hide_dotfiles = 1 "0 by default, this option hides files and folders starting with a dot `.`
 let g:lua_tree_git_hl = 1 "0 by default, will enable file highlight for git attributes (can be used without the icons).
 let g:lua_tree_root_folder_modifier = ':~' "This is the default. See :help filename-modifiers for more options
+let g:lua_tree_tab_open = 1 "0 by default, will open the tree when entering a new tab and the tree was previously open
 let g:lua_tree_show_icons = {
     \ 'git': 1,
     \ 'folders': 0,

doc/.gitignore

@@ -0,0 +1 @@
+tags

doc/nvim-tree-lua.txt

@@ -157,6 +157,12 @@ In what format to show root folder. See `:help filename-modifiers` for
 available options.
 Default is `:~`
 
+|g:lua_tree_tab_open|		                *g:lua_tree_tab_open*
+
+Can be 0 or 1. When 1, will open the tree when entering a new tab if the
+tree was previously open.
+Default is 0
+
 ==============================================================================
 INFORMATIONS				        *nvim-tree-info*
 

doc/tags

@@ -1,29 +0,0 @@
-:LuaTreeClipboard	nvim-tree-lua.txt	/*:LuaTreeClipboard*
-:LuaTreeClose	nvim-tree-lua.txt	/*:LuaTreeClose*
-:LuaTreeFindFile	nvim-tree-lua.txt	/*:LuaTreeFindFile*
-:LuaTreeOpen	nvim-tree-lua.txt	/*:LuaTreeOpen*
-:LuaTreeRefresh	nvim-tree-lua.txt	/*:LuaTreeRefresh*
-:LuaTreeToggle	nvim-tree-lua.txt	/*:LuaTreeToggle*
-g:lua_tree_auto_close	nvim-tree-lua.txt	/*g:lua_tree_auto_close*
-g:lua_tree_auto_open	nvim-tree-lua.txt	/*g:lua_tree_auto_open*
-g:lua_tree_bindings	nvim-tree-lua.txt	/*g:lua_tree_bindings*
-g:lua_tree_disable_keybindings	nvim-tree-lua.txt	/*g:lua_tree_disable_keybindings*
-g:lua_tree_follow	nvim-tree-lua.txt	/*g:lua_tree_follow*
-g:lua_tree_git_hl	nvim-tree-lua.txt	/*g:lua_tree_git_hl*
-g:lua_tree_icons	nvim-tree-lua.txt	/*g:lua_tree_icons*
-g:lua_tree_ignore	nvim-tree-lua.txt	/*g:lua_tree_ignore*
-g:lua_tree_indent_markers	nvim-tree-lua.txt	/*g:lua_tree_indent_markers*
-g:lua_tree_show_icons	nvim-tree-lua.txt	/*g:lua_tree_show_icons*
-g:lua_tree_hide_dotfiles	nvim-tree-lua.txt	/*g:lua_tree_hide_dotfiles*
-g:lua_tree_side	nvim-tree-lua.txt	/*g:lua_tree_side*
-g:lua_tree_size	nvim-tree-lua.txt	/*g:lua_tree_size*
-lua_tree_highlight	nvim-tree-lua.txt	/*lua_tree_highlight*
-nvim-tree-commands	nvim-tree-lua.txt	/*nvim-tree-commands*
-nvim-tree-features	nvim-tree-lua.txt	/*nvim-tree-features*
-nvim-tree-highlight	nvim-tree-lua.txt	/*nvim-tree-highlight*
-nvim-tree-info	nvim-tree-lua.txt	/*nvim-tree-info*
-nvim-tree-introduction	nvim-tree-lua.txt	/*nvim-tree-introduction*
-nvim-tree-keybindings	nvim-tree-lua.txt	/*nvim-tree-keybindings*
-nvim-tree-options	nvim-tree-lua.txt	/*nvim-tree-options*
-nvim-tree-quickstart	nvim-tree-lua.txt	/*nvim-tree-quickstart*
-nvim-tree.lua	nvim-tree-lua.txt	/*nvim-tree.lua*

lua/tree.lua

@@ -24,6 +24,7 @@ end
 function M.close()
   if lib.win_open() then
     lib.close()
+    return true
   end
 end
 
@@ -33,6 +34,17 @@ function M.open()
   end
 end
 
+local winopts = config.window_options()
+function M.tab_change()
+  -- we need defer_fn to make sure we close/open after we enter the tab
+  vim.defer_fn(function()
+    if M.close() then
+      M.open()
+      api.nvim_command('wincmd '..winopts.open_command)
+    end
+  end, 1)
+end
+
 local function gen_go_to(mode)
   local icon_state = config.get_icon_state()
   local flags = mode == 'prev_git_item' and 'b' or ''

plugin/tree.vim

@@ -17,6 +17,9 @@ augroup LuaTree
   au VimEnter * lua require'tree'.on_enter()
   au ColorScheme * lua require'tree'.reset_highlight()
   au User FugitiveChanged lua require'tree'.refresh()
+  if get(g:, 'lua_tree_tab_open') == 1
+    au TabEnter * lua require'tree'.tab_change()
+  endif
 augroup end
 
 command! LuaTreeOpen lua require'tree'.open()