Merge branch 'master' into 2746-float-window-for-full-filenames-has-wrong-bg

lua/nvim-tree.lua

@@ -242,6 +242,9 @@ local function setup_autocommands(opts)
     pattern = "*",
     ---@param ev vim.api.keyset.create_autocmd.callback_args
     callback = function(ev)
+      if not vim.api.nvim_buf_is_valid(ev.buf) then
+        return
+      end
       if vim.api.nvim_get_option_value("filetype", { buf = ev.buf }) == "NvimTree" then
         require("nvim-tree.events")._dispatch_on_tree_close()
       end

lua/nvim-tree/renderer/builder.lua

@@ -135,7 +135,7 @@ end
 function Builder:format_line(indent_markers, arrows, icon, name, node)
   local added_len = 0
   local function add_to_end(t1, t2)
-    if not t2 then
+    if not t2 or vim.tbl_isempty(t2) then
       return
     end
     for _, v in ipairs(t2) do

lua/nvim-tree/utils.lua

@@ -303,11 +303,51 @@ function M.rename_loaded_buffers(old_path, new_path)
   end
 end
 
+local is_windows_drive = function(path)
+  return (M.is_windows) and (path:match("^%a:\\$") ~= nil)
+end
+
 ---@param path string path to file or directory
 ---@return boolean
 function M.file_exists(path)
+  if not (M.is_windows or M.is_wsl) then
     local _, error = vim.loop.fs_stat(path)
     return error == nil
+  end
+
+  -- Windows is case-insensetive, but case-preserving
+  -- If a file's name is being changed into itself
+  -- with different casing, windows will falsely
+  -- report that file is already existing, so a hand-rolled
+  -- implementation of checking for existance is needed.
+  -- Same holds for WSL, since it can sometimes
+  -- access Windows files directly.
+  -- For more details see (#3117).
+
+  if is_windows_drive(path) then
+    return vim.fn.isdirectory(path) == 1
+  end
+
+  local parent = vim.fn.fnamemodify(path, ":h")
+  local filename = vim.fn.fnamemodify(path, ":t")
+
+  local handle = vim.loop.fs_scandir(parent)
+  if not handle then
+    -- File can not exist if its parent directory does not exist
+    return false
+  end
+
+  while true do
+    local name, _ = vim.loop.fs_scandir_next(handle)
+    if not name then
+      break
+    end
+    if name == filename then
+      return true
+    end
+  end
+
+  return false
 end
 
 ---@param path string