Re: [Bug] --simplify-by-decoration prints undecorated commit

From: Jeff King <peff@peff.net>
Date: Dec 18, 2024, 12:08 UTC
Message-ID: <20241218120831.GA695807@coredump.intra.peff.net>
In-Reply-To: <CAEtHj8AXKrQfyAW9FSv6yC-8GF1AkPixMFjSye+B51pJ4fOtWA@mail.gmail.com>

On Mon, Dec 16, 2024 at 04:09:07PM +0100, Aleksander Korzyński wrote:

> # Now, let's try --simplify-by-decoration on another commit
> $ git log -1 --simplify-by-decoration --oneline 1e3ef455cc
> 025a87d9db Merge branch 'master' into master
> # The above output seems incorrect, because the commit isn't decorated

Yes, but it's a merge commit. From "git help log":

  Note that extra commits can be shown to give a meaningful history.

Try:

  git log --simplify-by-decoration --oneline --graph 1e3ef455cc

and you'll see that there are commits along both parent branches, and thus we show the merge.

There are some other options listed after that for changing which commits are shown ("The following options affect the way the simplification is performed"). But I don't think there is one that will show only the decorated commits (however, I could be wrong; I've only ever used these options to show _more_ commits, not fewer).

-Peff