Pre-commit hook

[fallion]

[reitzig]

Actually, a commit-msg hook (ref) would be nice, e.g. with evilmartians/lefthook.

Seems to me the main ingredient would be validating a file instead of a (range of) Git revision(s).

Workaround for those who stumble over this: cog verify --file {1} (via cocogitto/cocogitto) works; sorry for the "ad" but I didn't see a way to do it with commitsar. 🙏