[plugin] Add folder check in move-to-archive (#11262)

frontend/util.lua

@@ -758,6 +758,11 @@ function util.pathExists(path)
     return lfs.attributes(path, "mode") ~= nil
 end
 
+--- Checks if the given directory exists.
+function util.directoryExists(path)
+  return lfs.attributes(path, "mode") == "directory"
+end
+
 --- As `mkdir -p`.
 -- Unlike [lfs.mkdir](https://keplerproject.github.io/luafilesystem/manual.html#mkdir)(),
 -- does not error if the directory already exists, and creates intermediate directories as needed.

plugins/movetoarchive.koplugin/main.lua

@@ -50,7 +50,7 @@ function MoveToArchive:addToMainMenu(menu_items)
             {
                 text = _("Go to archive folder"),
                 callback = function()
-                    if self.archive_dir_path then
+                    if self.archive_dir_path and util.directoryExists(self.archive_dir_path) then
                         self:openFileBrowser(self.archive_dir_path)
                     else
                         self:showNoArchiveConfirmBox()