Getting error randomly when the current buffer is a .vim file

[farzadmf]

Describe the bug
I'm using vim-ctrlspace and I have an open buffer of a .vim file. When I want to list the tabs using vim-ctrlspace, I see the following error:

error caught in async handler '/home/farzad/.vim/plugged/vim-ultest/rplugin/python3/ultest:function:_ultest_update_positions [['init.vim']]'
Traceback (most recent call last):
  File "/home/farzad/.vim/plugged/vim-ultest/rplugin/python3/ultest/__init__.py", line 98, in _update_positions
    self.handler.update_positions(*args)
  File "/home/farzad/.vim/plugged/vim-ultest/rplugin/python3/ultest/handler/__init__.py", line 152, in update_positions
    vim_patterns = self._vim.sync_call("ultest#adapter#get_patterns", file_name)
  File "/home/farzad/.vim/plugged/vim-ultest/rplugin/python3/ultest/vim_client/__init__.py", line 128, in sync_call
    return self._eval(expr, sync=True)
  File "/home/farzad/.vim/plugged/vim-ultest/rplugin/python3/ultest/vim_client/__init__.py", line 141, in _eval
    return self._vim.eval(expr, async_=not sync)
  File "/usr/lib/python3.9/site-packages/pynvim/api/nvim.py", line 295, in eval
    return self.request('nvim_eval', string, **kwargs)
  File "/usr/lib/python3.9/site-packages/pynvim/api/nvim.py", line 182, in request
    res = self._session.request(name, *args, **kwargs)
  File "/usr/lib/python3.9/site-packages/pynvim/msgpack_rpc/session.py", line 102, in request
    raise self.error_wrapper(err)
pynvim.api.common.NvimError: Vim(return):E484: Can't open file init.vim

This is the log file:

22:53:12 | INFO | MainThread | logging.py:create_logger:71 | Logger created
22:53:12 | DEBUG | MainThread | __init__.py:__init__:40 | Handler created
22:53:14 | DEBUG | MainThread | __init__.py:update_positions:154 | No patterns found for init.vim

To Reproduce

1. Open a .vim file
2. Press ctrl + space to display vim-ctrlspace menu
3. Press l to list tabs in vim-ctrlspace
4. See the error

Expected behavior
There shouldn't be any errors!

[github-actions]

🎉 This issue has been resolved in version 2.5.9 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀

[rcarriga]

I've put in a quick catch all for this error which should work fine, but I'm curious as to why you get the error. I'm not familiar with vim-ctrlspace but it must be doing something with the buffer itself because the plugin will check that the file exists first... Also the error is actually being thrown in vim-test, just being caught in vim-ultest.

[farzadmf]

Thank you @rcarriga for the super fast fix (as was the case with all my other issues). Keep up the good work 👍