fix(#1520) file type changes are not detected.

Author: sebcode

lua/nvim-tree/explorer/node-builders.lua

@@ -11,6 +11,7 @@ function M.folder(parent, absolute_path, name)
   local has_children = handle and uv.fs_scandir_next(handle) ~= nil
 
   return {
+    type = "directory",
     absolute_path = absolute_path,
     fs_stat = uv.fs_stat(absolute_path),
     group_next = nil, -- If node is grouped, this points to the next child dir/link node
@@ -34,6 +35,7 @@ function M.file(parent, absolute_path, name)
   local ext = string.match(name, ".?[^.]+%.(.*)") or ""
 
   return {
+    type = "file",
     absolute_path = absolute_path,
     executable = M.is_executable(absolute_path, ext),
     extension = ext,
@@ -61,6 +63,7 @@ function M.link(parent, absolute_path, name)
   end
 
   return {
+    type = "link",
     absolute_path = absolute_path,
     fs_stat = uv.fs_stat(absolute_path),
     group_next = nil, -- If node is grouped, this points to the next child dir/link node

lua/nvim-tree/explorer/reload.lua

@@ -18,6 +18,15 @@ local function update_status(nodes_by_path, node_ignored, status)
   end
 end
 
+local function table_find(table, value)
+  for i, v in ipairs(table) do
+    if v == value then
+      return i
+    end
+  end
+  return nil
+end
+
 function M.reload(node, status)
   local cwd = node.link_to or node.absolute_path
   local handle = uv.fs_scandir(cwd)
@@ -45,6 +54,20 @@ function M.reload(node, status)
     t = t or (uv.fs_stat(abs) or {}).type
     if not filters.should_ignore(abs) and not filters.should_ignore_git(abs, status.files) then
       child_names[abs] = true
+
+      -- Recreate node if type changes.
+      if nodes_by_path[abs] then
+        local n = nodes_by_path[abs]
+
+        if n.type ~= t then
+          local idx = table_find(node.nodes, n)
+          if idx then
+            table.remove(node.nodes, idx)
+          end
+          nodes_by_path[abs] = nil
+        end
+      end
+
       if not nodes_by_path[abs] then
         if t == "directory" and uv.fs_access(abs, "R") then
           local folder = builders.folder(node, abs, name)