Fix fatal config set error

[sepehr-rs]

Fixes #13279

I tried fixing this by providing the user with a helpful error message instead of crashing, and made a new parser to allow writing to the PIP_CONFIG_FILE environment variable temporarily.

One important caveat is that changes made to the config file via PIP_CONFIG_FILE may not be reflected in other commands like pip config get due to how pip loads config scopes.

Would appreciate any feedback on this :).

[sepehr-rs]

I think pre-commit is showing weird behavior here again...
I've changed the problematic files but it is still failing with the old files.

[notatallshaw]

I think pre-commit is showing weird behavior here again...
I've changed the problematic files but it is still failing with the old files.

Do you know if there is anything particular about your git workflow? It does seem to be happening with your PRs more than anyone else's (though I have seen it happen at least once to mine).

You could perhaps report this to pre-commit, I would normally assist in reporting a bug but my experience with that project means I am not inclined to help it out.

In the mean time I'm thinking we should move off pre-commit.ci, and instead just add it as a github workflow, I don't see any advantage to having it run in a separate infrastructure. I'll make an issue and a PR when I have a moment.

[sepehr-rs]

I think pre-commit is showing weird behavior here again...
I've changed the problematic files but it is still failing with the old files.

Do you know if there is anything particular about your git workflow? It does seem to be happening with your PRs more than anyone else's (though I have seen it happen at least once to mine).

You could perhaps report this to pre-commit, I would normally assist in reporting a bug but my experience with that project means I am not inclined to help it out.

In the mean time I'm thinking we should move off pre-commit.ci, and instead just add it as a github workflow, I don't see any advantage to having it run in a separate infrastructure. I'll make an issue and a PR when I have a moment.

No, I don’t think the issue is on my end. It might be that committing too quickly causes these problems. And sure, I’ll report this as a potential bug to pre-commit. Thanks for your feedback!