Re: Why is AuthorDate displayed on git-blame?

From: Raymond E. Pasco <ray@ameretat.dev>
Date: Aug 6, 2020, 06:57 UTC
Message-ID: <C4PPV24G8ZNK.3IYI2MQ3A262Y@ziyou>
In-Reply-To: <xmqq5z9yq611.fsf@gitster.c.googlers.com>

On Tue Aug 4, 2020 at 8:40 PM EDT, Junio C Hamano wrote:

> IOW, what you would want is a "git blame --first-parent".

This exists (because blame takes rev-list options) and works as expected (because blame.c handles this case), but is not documented. We could include rev-list-options.txt, but this wouldn't be accurate because blame does some of its own commit walking. Perhaps the following adaptation:

--first-parent::
	Follow only the first parent commit upon seeing a merge
	commit. This option can be used to determine when a line
	was introduced to a particular integration branch, rather
	than when it was introduced to the history overall.