3.1.25 broke local conda smithy rerender on windows

[h-vetinari]

Before rerendering locally, I usually update all my dependencies. Since #61 was merged, I've been running into errors where gitpython seems to lock itself out of touching git.

(builder) C:\Users\[...]\Dev\conda-forge\scipy-feedstock>conda smithy rerender
INFO:conda_smithy.configure_feedstock:Downloading conda-forge-pinning-2022.01.08.19.53.23
INFO:conda_smithy.configure_feedstock:Extracting conda-forge-pinning to C:\Users\[...]\AppData\Local\Temp\tmp8navqa9w
Traceback (most recent call last):
  File "C:\Users\[...]\.conda\envs\builder\Scripts\conda-smithy-script.py", line 9, in <module>
    sys.exit(main())
  File "C:\Users\[...]\.conda\envs\builder\lib\site-packages\conda_smithy\cli.py", line 681, in main
    args.subcommand_func(args)
  File "C:\Users\[...]\.conda\envs\builder\lib\site-packages\conda_smithy\cli.py", line 486, in __call__
    self._call(args, tmpdir)
  File "C:\Users\[...]\.conda\envs\builder\lib\site-packages\conda_smithy\cli.py", line 491, in _call
    configure_feedstock.main(
  File "C:\Users\[...]\.conda\envs\builder\lib\site-packages\conda_smithy\configure_feedstock.py", line 2164, in main
    config = _load_forge_config(forge_dir, exclusive_config_file, forge_yml)
  File "C:\Users\[...]\.conda\envs\builder\lib\site-packages\conda_smithy\configure_feedstock.py", line 1842, in _load_forge_config
    remove_file_or_dir(os.path.join(forge_dir, old_file))
  File "C:\Users\[...]\.conda\envs\builder\lib\site-packages\conda_smithy\feedstock_io.py", line 70, in remove_file_or_dir
    return remove_file(filename)
  File "C:\Users\[...]\.conda\envs\builder\lib\site-packages\conda_smithy\feedstock_io.py", line 79, in remove_file
    touch_file(filename)
  File "C:\Users\[...]\.conda\envs\builder\lib\site-packages\conda_smithy\feedstock_io.py", line 65, in touch_file
    fh.write("")
  File "C:\Users\[...]\.conda\envs\builder\lib\contextlib.py", line 126, in __exit__
    next(self.gen)
  File "C:\Users\[...]\.conda\envs\builder\lib\site-packages\conda_smithy\feedstock_io.py", line 60, in write_file
    repo.index.add([filename])
  File "C:\Users\[...]\.conda\envs\builder\lib\site-packages\git\index\base.py", line 823, in add
    self.write(ignore_extension_data=not write_extension_data)
  File "C:\Users\[...]\.conda\envs\builder\lib\site-packages\git\index\base.py", line 221, in write
    lfd.commit()
  File "C:\Users\[...]\.conda\envs\builder\lib\site-packages\gitdb\util.py", line 359, in commit
    self._end_writing(successful=True)
  File "C:\Users\[...]\.conda\envs\builder\lib\site-packages\gitdb\util.py", line 384, in _end_writing
    remove(self._filepath)
  File "C:\Users\[...]\.conda\envs\builder\lib\site-packages\gitdb\util.py", line 83, in remove
    return _retry(os.remove, *args, **kwargs)
  File "C:\Users\[...]\.conda\envs\builder\lib\site-packages\gitdb\util.py", line 77, in _retry
    return func(*args, **kwargs)
PermissionError: [WinError 32] The process cannot access the file because it is being used by another process: 'C:\\Users\\[...]\\Dev\\conda-forge\\scipy-feedstock\\.git\\index'

I've made sure no other processes were running (even restarted the machine), but the error persists. Reverting to 3.1.24 makes the rerender pass again.

CC @conda-forge/conda-smithy

Edit: CC @conda-forge/core (@conda-forge/conda-smithy shows 0 members; is that transitive maintainership working correctly)?

[xhochy]

This could be coming from gitpython-developers/GitPython#1391 / gitpython-developers/GitPython#1388

[skshetry]

@h-vetinari, this is now fixed and released in 3.1.26. Can be closed when #63 gets merged.

[h-vetinari]

Thanks a lot! :)