Re: [PATCH 2/3] builtin/gc: fix condition for whether to write commit graphs

[Patrick Steinhardt <ps@pks.im>]

On Wed, Dec 10, 2025 at 01:49:39PM -0600, Justin Tobler wrote:
> On 25/12/05 09:19AM, Patrick Steinhardt wrote:
> > diff --git a/t/t7900-maintenance.sh b/t/t7900-maintenance.sh
> > index 6b36f52df7..6f3117304f 100755
> > --- a/t/t7900-maintenance.sh
> > +++ b/t/t7900-maintenance.sh
> > @@ -206,6 +206,32 @@ test_expect_success 'commit-graph auto condition' '
> >  	test_subcommand $COMMIT_GRAPH_WRITE <cg-two-satisfied.txt
> >  '
> >  
> > +test_expect_success 'commit-graph auto condition with merges' '
> > +	test_when_finished "rm -rf repo" &&
> > +	git init repo &&
> > +	(
> > +		cd repo &&
> > +		git config set maintenance.auto false &&
> > +		git commit --allow-empty -m initial &&
> > +		git switch --create feature &&
> > +		git commit --allow-empty -m feature-1 &&
> > +		git commit --allow-empty -m feature-2 &&
> > +		git switch - &&
> > +		git commit --allow-empty -m main-1 &&
> > +		git commit --allow-empty -m main-2 &&
> > +		git merge feature &&
> > +		git branch -D feature &&
> 
> If we left the feature branch instead of deleting it, would that help
> test that commits are not counted twice?

Indeed! I couldn't make any sense of the results at the beginning of
writing this test, but now that I fixed the relveant bugs we can retain
the branch.

Patrick