Re: Replacing Link trailers

[Kees Cook <kees@kernel.org>]

On Wed, Oct 15, 2025 at 12:15:09PM -0700, Linus Torvalds wrote:
> Look, you can have a .git/hooks/prepare-commit-msg script that looks
> something like this:
> 
>   #!/bin/sh
>   COMMIT_MSG_FILE=$1
>   COMMIT_SOURCE=$2
>   SHA1=$3
>   b4 dig -c "$SHA1" 2>&1 | sed 's/^/# /' >> "$COMMIT_MSG_FILE"
> 
> And lo and behold: you'll find the 'b4 dig' output at the end of your
> commit message as you start editing it.

Perhaps use local git notes (or whatever) for the "b4 am" URL (that would
have been the Link tag), and at commit-msg time (i.e. the above hook),
if "b4 dig" doesn't match that URL, emit the saved Link tag and a FIXME
into the commit msg to describe what changed enough that "b4 dig" didn't
find it and why a Link tag is now justified?

-- 
Kees Cook