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Comment by gerardnico | Hacker News Reader

Instead of creating a tag, you could add the time in your commit message as a footer key following the conventional commit spec.

https://www.conventionalcommits.org/en/v1.0.0/

Ie example of commit message

fix: prevent racing of requests

Desc

Time-spend: Z

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I did look at modifying the merge commit message, but I couldn't figure out how to accurately detect a merge commit.

Having re-looked, I just found 'git rev-parse --verify MERGE_HEAD' which may help here. Time to do some testing. It would be good to clean up and standardise the commit msg itself too. Thanks.

cool.

The prepare-commit-msg hook is the one. One of the hook args is the type of commit (merge, squash, etc). And the merge commit msg files exist (SQUASH_MSG, MERGE_MSG) so my original logic all works.

  $ git log -1
  commit 735ce5f9998736c4066d63ab851df2023640dad5 (HEAD -> master)
  Author: Doug Bridgens <thisdougb@users.noreply.github.com>
  Date:   Tue Apr 1 22:31:22 2025 +0100

        test4 does some stuff
    
    Time spent on feat_test4: 0d:0h:7m secs=426

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