fix(#1629): nvim start with file named *NvimTree* opens tree instead of buffer (#1634)

* fix(#1629): nvim start with file named *NvimTree* opens tree instead of buffer

* Revert "fix(#1629): nvim start with file named *NvimTree* opens tree instead of buffer"

This reverts commit e713607.

* fix(#1629): nvim start with file named *NvimTree* treats file as tree

* fix(#1629): nvim start with file named *NvimTree* treats file as tree

Author: alex-courtis

doc/nvim-tree-lua.txt

@@ -204,6 +204,7 @@ Subsequent calls to setup will replace the previous configuration.
         },
         float = {
           enable = false,
+          quit_on_focus_loss = true,
           open_win_config = {
             relative = "editor",
             border = "rounded",

lua/nvim-tree.lua

@@ -135,8 +135,7 @@ end
 
 local function find_existing_windows()
   return vim.tbl_filter(function(win)
-    local buf = api.nvim_win_get_buf(win)
-    return api.nvim_buf_get_name(buf):match "NvimTree" ~= nil
+    return utils.is_nvim_tree_buf(api.nvim_win_get_buf(win))
   end, api.nvim_list_wins())
 end
 

lua/nvim-tree/utils.lua

@@ -462,4 +462,15 @@ function M.inject_node(f)
   end
 end
 
+---Is the buffer a tree? Like /path/to/NvimTree_2 and not a readable file.
+---@param bufnr number
+---@return boolean
+function M.is_nvim_tree_buf(bufnr)
+  if vim.fn.bufexists(bufnr) then
+    local bufname = a.nvim_buf_get_name(bufnr)
+    return vim.fn.fnamemodify(bufname, ":t"):match "^NvimTree_[0-9]+$" and vim.fn.filereadable(bufname) == 0
+  end
+  return false
+end
+
 return M

lua/nvim-tree/view.lua

@@ -3,6 +3,7 @@ local a = vim.api
 local M = {}
 
 local events = require "nvim-tree.events"
+local utils = require "nvim-tree.utils"
 
 local function get_win_sep_hl()
   -- #1221 WinSeparator not present in nvim 0.6.1 and some builds of 0.7.0
@@ -76,7 +77,7 @@ end
 
 local function wipe_rogue_buffer()
   for _, bufnr in ipairs(a.nvim_list_bufs()) do
-    if not matches_bufnr(bufnr) and a.nvim_buf_get_name(bufnr):match "NvimTree" ~= nil then
+    if not matches_bufnr(bufnr) and utils.is_nvim_tree_buf(bufnr) then
       pcall(a.nvim_buf_delete, bufnr, { force = true })
     end
   end