Subject: Re: [PATCH v2] blame: allow --contents to work with bare repo

From: Junio C Hamano <[email-masked]>
Date: Fri, 21 Jul 2023 07:32:46 -0700

Han Young <[email-masked]> writes:

> The --contents option can be used with git blame to blame the file as if
> it had the contents from the specified file. Since 1a3119ed06c8fbb1c00a6aa3615299252575abab ("blame: allow --contents to work with non-HEAD commit"), the --contents option can work with non-HEAD commit. However, if you try to use --contents in a bare repository, you get the following error:

When using the "show -s --pretty=reference --oneline", abbreviate
the commit object name to a reasonable length (like 8 to 12
hexadecimal digits).  Please wrap overlong lines.

I'll fix them up at the receiving end, if there is no other issues
in the patch.  Let's read on.

>  blame.c             | 4 +++-
>  t/annotate-tests.sh | 9 +++++++++
>  2 files changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/blame.c b/blame.c
> index d12bd9f97..141756975 100644
> --- a/blame.c
> +++ b/blame.c
> @@ -2806,7 +2806,9 @@ void setup_scoreboard(struct blame_scoreboard *sb,
>  			parent_oid = &head_oid;
>  		}
>  
> -		setup_work_tree();
> +		if (!sb->contents_from)
> +			setup_work_tree();
> +
>  		sb->final = fake_working_tree_commit(sb->repo,
>  						     &sb->revs->diffopt,
>  						     sb->path, sb->contents_from,

Thanks.

> diff --git a/t/annotate-tests.sh b/t/annotate-tests.sh
> index 2ef70235b..5e21e84f3 100644
> --- a/t/annotate-tests.sh
> +++ b/t/annotate-tests.sh
> @@ -83,6 +83,15 @@ test_expect_success 'blame with --contents' '
>  	check_count --contents=file A 2
>  '
>  
> +test_expect_success 'blame with --contents in a bare repo' '
> +	git clone --bare . bare-contents.git &&
> +	(
> +		cd bare-contents.git &&
> +		echo "1A quick brown fox jumps over the" >contents &&
> +		check_count --contents=contents A 1
> +	)
> +'
> +
>  test_expect_success 'blame with --contents changed' '
>  	echo "1A quick brown fox jumps over the" >contents &&
>  	echo "another lazy dog" >>contents &&