On 2024-11-19 at 09:17:33, Niels Möller wrote:
> I had expected the output of git show -s --format='tformat:%H' to be
> always the same, and was surprised to find that scripts using this
> construction started to fail after I set log.showSignature true.
>
> See filled out bugreport form below, including a repro script.
>
> Regards,
> /Niels Möller
>
> Thank you for filling out a Git bug report!
> Please answer the following questions to help us understand your issue.
>
> What did you do before the bug happened? (Steps to reproduce your issue)
>
> git config --global log.showSignature true
>
> I'm trying this out to get to see in git log which commits are
> signed.
>
> What did you expect to happen? (Expected behavior)
>
> That git show -s --format='tformat:%H' SOME_COMMIT
> should still output the commit hash and nothing more.
git show is a porcelain, and it can be affected by options, such as
`log.showSignature`. If you want predictable behaviour, you need a
plumbing command, whose behaviour isn't affected by configuration in
this way. The equivalent to what you've requested is this:
git rev-list --no-commit-header -1 -s --format='tformat:%H' SOME_COMMIT
I've confirmed that works correctly even if `log.showSignature` is set.
--
brian m. carlson (they/them or he/him)
Toronto, Ontario, CA
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