run shellcheck only on files that are changed

[traktofon]

please

[traktofon]

@ikirker Is this possible?

[ikirker]

Once the initial wave of fixes are in, it should be less noisy, BUT

This might be possible?

The problem is effectively trying to get the commit hash you should compare to, in:

git diff --name-only $previous_commit_hash HEAD

which gives the list of changed files.

[traktofon]

Ah, I wasn't aware that getting the list of changed files is something that one has to arrange oneself. (But then I started to suspect so when I heard about the compromise of a seemingly popular changed-files GH action...) Naively thought that's something that's readily available in some way to the action.

That said, doesn't git show include the list of files that were changed in this commit, without having to know about the "previous" commit? Unfortunately it also shows the commit message, but perhaps something like

git show [<commit>] --name-only --pretty=oneline | tail -n +2

would be a starting point?

[ikirker]

The problem then comes when you push more than one commit at once: only the files altered in the most recent one would get checked, because it only runs tests against the last commit. In that kind of situation, it's likely to miss a lot.