add config to open or close automatically

Author: kyazdani42

README.md

@@ -18,6 +18,8 @@ Plug 'kyazdani42/nvim-tree.lua'
 let g:lua_tree_side = 'right' | 'left' "left by default
 let g:lua_tree_size = 40 "30 by default
 let g:lua_tree_ignore = [ '.git', 'node_modules', '.cache' ] "empty by default, not working on mac atm
+let g:lua_tree_auto_open = 1 "0 by default, opens the tree when typing `vim $DIR` or `vim`
+let g:lua_tree_auto_close = 1 "0 by default, closes the tree when it's the last window
 let g:lua_tree_follow = 1 "0 by default, this option will bind BufEnter to the LuaTreeFindFile command
 " :help LuaTreeFindFile for more info
 
@@ -62,6 +64,7 @@ nnoremap <leader>n :LuaTreeFindFile<CR>
 - Tree creation should be async
 - refactor all `system` call to `libuv` functions, with better error management
 - bufferize leafs of node being closed so when opening again the node, we open every directory that was previously open
+- make config module to make it easier to add/modify user options
 
 ### Features
 - sneak like cd command to find a file/directory

doc/nvim-tree-lua.txt

@@ -57,7 +57,19 @@ Each pattern is passed into the 'ls' function as `--ignore=PATTERN`
 |g:lua_tree_follow|				*g:lua_tree_follow*
 
 Can be `0` or `1`. When `1`, will bind |:LuaTreeFindFile| to |BufEnter|
+Default is 0
 
+|g:lua_tree_auto_open|				*g:lua_tree_auto_open*
+
+Can be `0` or `1`. When `1`, will bind |VimEnter| to automatically
+open tree on startup if no files are specified.
+Default is 0
+
+|g:lua_tree_auto_close|				*g:lua_tree_auto_close*
+
+Can be `0` or `1`. When `1`, will bind |BufEnter| to automatically
+close the tree if it's the last window.
+Default is 0
 
 ==============================================================================
 INFORMATIONS				        *nvim-tree-info*

doc/tags

@@ -1,6 +1,8 @@
 :LuaTreeFindFile	nvim-tree-lua.txt	/*:LuaTreeFindFile*
 :LuaTreeRefresh	nvim-tree-lua.txt	/*:LuaTreeRefresh*
 :LuaTreeToggle	nvim-tree-lua.txt	/*:LuaTreeToggle*
+g:lua_tree_auto_open	nvim-tree-lua.txt	/*g:lua_tree_auto_open*
+g:lua_tree_auto_open	nvim-tree-lua.txt	/*g:lua_tree_auto_open*
 g:lua_tree_follow	nvim-tree-lua.txt	/*g:lua_tree_follow*
 g:lua_tree_ignore	nvim-tree-lua.txt	/*g:lua_tree_ignore*
 g:lua_tree_side	nvim-tree-lua.txt	/*g:lua_tree_side*

lua/tree.lua

@@ -37,7 +37,8 @@ init_tree()
 
 local function toggle()
     if is_win_open() == true then
-        close()
+        local wins = api.nvim_list_wins()
+        if #wins > 1 then close() end
     else
         open()
         update_view()

plugin/tree.vim

@@ -9,8 +9,14 @@ 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()
+
+if get(g:, 'lua_tree_auto_close') != 0
+    au BufEnter * lua require'tree'.check_windows_and_close()
+endif
+
+if get(g:, 'lua_tree_auto_open') != 0
+    au VimEnter * lua require'tree'.check_buffer_and_open()
+endif
 
 " TODO set status line dynamically on bufenter in the luatree
 " to remove lightline and other possible components