Allow applying corrections in place

[patrickelectric]

This is helpful to show what would be necessary to change on the code to match the style

[jidicula]

applying corrections in place

By this, do you mean that you're requesting that this action pushes a commit that formats the files failing the check? If so, I won't be implementing that - my intent for this action is to provide a minimal-permission checker utility, not a fixer utility.

[patrickelectric]

I'm talking about running clang-format with -i or an option that would just show the necessary changes

[Krzmbrzl]

So I guess the procedure here would be

1. Run clang-format -i
2. Output a diff of all files that have changed by this. Easiest approach might be a git commit -am "Dummy" and then git diff HEAD~1

[678098]

So I guess the procedure here would be

1. Run clang-format -i
2. Output a diff of all files that have changed by this. Easiest approach might be a git commit -am "Dummy" and then git diff HEAD~1

This will not work I believe when the code is already formatted, because git commit -am "..." will not create a commit with empty diff. So the next cmd git diff HEAD~1 will not show the formatter diff, and instead show the previous normal commit diff.

Removing an extra step of creating a commit might work though:

git clang-format --diff -q origin/main

If the code is already formatted, the cmd returns an empty string, otherwise it will show the desired diff.