Subject: Re: [PATCH] sequencer: preserve commit messages

From: Junio C Hamano <[email-masked]>
Date: Mon, 23 Feb 2015 10:54:53 -0800

Michael J Gruber <[email-masked]> writes:

> sequencer calls "commit" with default options, which implies
> "--cleanup=default" unless the user specified something else in their
> config. This leads to cherry-picked commits getting a cleaned up commit
> message, which is usually not an intended side-effect.
>
> Make the sequencer use "--cleanup=verbatim" so that it preserves commit
> messages independent of the defaults and user config for "commit".

Hmm, wouldn't it introduce a grave regression for users who
explicitly ask to clean crufty messages up (by setting their own
commit.cleanup configuration) if you unconditionally force
"--cleanup=verbatim" here?

>
> Reported-by: Christoph Anton Mitterer <[email-masked]>
> Signed-off-by: Michael J Gruber <[email-masked]>
> ---
>
> Notes:
>     All tests run fine with this changed behavior. I don't know
>     whether this may have any side-effects on other (untested)
>     uses of the sequencer.
>
>  sequencer.c              |  1 +
>  t/t3511-cherry-pick-x.sh | 28 ++++++++++++++++++++++++++++
>  2 files changed, 29 insertions(+)
>
> diff --git a/sequencer.c b/sequencer.c
> index 77a1266..35fe9d9 100644
> --- a/sequencer.c
> +++ b/sequencer.c
> @@ -377,6 +377,7 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts,
>  	argv_array_init(&array);
>  	argv_array_push(&array, "commit");
>  	argv_array_push(&array, "-n");
> +	argv_array_push(&array, "--cleanup=verbatim");

>  
>  	if (opts->gpg_sign)
>  		argv_array_pushf(&array, "-S%s", opts->gpg_sign);
> diff --git a/t/t3511-cherry-pick-x.sh b/t/t3511-cherry-pick-x.sh
> index f977279..b7dff09 100755
> --- a/t/t3511-cherry-pick-x.sh
> +++ b/t/t3511-cherry-pick-x.sh
> @@ -36,6 +36,20 @@ mesg_with_cherry_footer="$mesg_with_footer_sob
>  (cherry picked from commit da39a3ee5e6b4b0d3255bfef95601890afd80709)
>  Tested-by: C.U. Thor <[email-masked]>"
>  
> +mesg_unclean="$mesg_one_line
> +
> +
> +leading empty lines
> +
> +
> +consecutive empty lines
> +
> +# hash tag comment
> +
> +trailing empty lines
> +
> +
> +"
>  
>  test_expect_success setup '
>  	git config advice.detachedhead false &&
> @@ -53,6 +67,10 @@ test_expect_success setup '
>  	test_commit "$mesg_with_footer_sob" foo b mesg-with-footer-sob &&
>  	git reset --hard initial &&
>  	test_commit "$mesg_with_cherry_footer" foo b mesg-with-cherry-footer &&
> +	git reset --hard initial &&
> +	test_config commit.cleanup verbatim &&
> +	test_commit "$mesg_unclean" foo b mesg-unclean &&
> +	test_unconfig commit.cleanup &&
>  	pristine_detach initial &&
>  	test_commit conflicting unrelated
>  '
> @@ -216,4 +234,14 @@ test_expect_success 'cherry-pick -x -s treats "(cherry picked from..." line as p
>  	test_cmp expect actual
>  '
>  
> +test_expect_success 'cherry-pick preserves commit message' '
> +	pristine_detach initial &&
> +	printf "$mesg_unclean" >expect &&
> +	git log -1 --pretty=format:%B mesg-unclean >actual &&
> +	test_cmp expect actual &&
> +	git cherry-pick mesg-unclean &&
> +	git log -1 --pretty=format:%B >actual &&
> +	test_cmp expect actual
> +'
> +
>  test_done