get commit message in git hook

git hook
fish potato picture fish potato · Mar 22, 2011 · Viewed 23.3k times · Source

I would like to check commit message before git commit. I use pre-commit hook to do that, but couldn't find the way to get commit message in .git/pre-commit script. How could I get it?

Answer

Mark Longair picture Mark Longair · Mar 22, 2011

In the pre-commit hook, the commit message usually hasn't been created yet 1. You probably want to use one of the prepare-commit-msg or commit-msg hooks instead. There's a nice section in Pro Git on the order in which these hooks are run, and what you typically might do with them.

1. The exception is that the committer might have supplied a commit message with -m, but the message still isn't accessible to the pre-commit hook, whereas it is to prepare-commit-msg or commit-msg

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