quit when tree is last buf, open on enter if dir or no file

README.md

@@ -17,10 +17,9 @@
 - [x] Mouse support
 
 ## TODO
-- handle permissions properly (display error on Read access denied)
-- fix all window problems (force size to stay always the same and keep it on the left)
-- kill window when its the last one (BufLeave)
-- open automatically when opening neovim with `nvim` or `nvim .`
+- display error on Read access denied (and better handling of errors if any)
+- fix all window problems (force size to stay always the same and keep it on the side)
+- add options for users
 - cd command to move faster accross the fs if needed
 - quickly find file in the directory structure
 - use libuv functions instead of `touch` and `mkdir` in `add_file()`

lua/tree.lua

@@ -119,10 +119,26 @@ local function refresh()
     end
 end
 
+local function check_windows_and_close()
+    local wins = api.nvim_list_wins()
+
+    if #wins == 1 and is_win_open() then
+        -- TODO: find why it hangs
+        api.nvim_command('q!')
+    end
+end
+
+local function check_buffer_and_open()
+    local bufname = api.nvim_buf_get_name(0)
+    if bufname == '' or is_dir(bufname) then toggle() end
+end
+
 return {
     toggle = toggle;
     open_file = open_file;
     edit_file = edit_file;
     refresh = refresh;
+    check_windows_and_close = check_windows_and_close;
+    check_buffer_and_open = check_buffer_and_open;
 }
 

plugin/tree.vim

@@ -4,11 +4,13 @@ let s:save_cpo = &cpo
 set cpo&vim
 
 let g:loaded_netrw = 1
-let g:loaded_netrwPlugin = 1 " Disable netrw
+let g:loaded_netrwPlugin = 1
 
 hi def link LuaTreePopup Normal
 
 au BufWritePost * lua require'tree'.refresh()
+au BufEnter * lua require'tree'.check_windows_and_close()
+au VimEnter * lua require'tree'.check_buffer_and_open()
 
 command! LuaTree lua require'tree'.toggle()