The pattern_to_regex method does not seem to work correctly on windows.

[hakancelikdev]

gitignore file is as follows.

a
b
spam/**
**/api/
**/

After converting each line to regex, I have a method called list_path that scans the python files in the current directory and returns the ones that do not match each pattern found in gitignore, and the following test failed in the Windows environment, do you have Windows support for Pathspec?

• https://github.com/hakancelikdev/unimport/blob/i240/tests/test_utils.py#L34
• https://github.com/hakancelikdev/unimport/runs/8173619404?check_suite_focus=true

[excitoon]

@hakancelikdev It does not support **/. gitignorefile shall do the job.

[excitoon]

Nope, this exact bug was actually fixed in #62 / #41 .

[hakancelikdev]

Okey thank you

[cpburnz]

@hakancelikdev Windows is supported by normalizing the Windows path to a POSIX path, and then matching it against the compiled regular expression patterns. If you're using the PathSpec or GitIgnoreSpec classes, they'll handle the normalization for you. Otherwise, you'll need to normalize them with the pathspec.util.normalize_file() function before matching them with the patterns.

For the test that's failing, I'm not sure how utils.list_paths() or utils.get_exclude_list_from_gitignore() use pathspec as those appear to be from unimport.