code: regress

ref: 717df14acac498bfb4496066a60c1ae83e93d9b7
dir: /cmd/git/lca.rc/

#!/bin/rc

. ../util.rc

rm -fr scratch
mkdir -p scratch
cd scratch

echo @@ test lca @@
@{
	q git/init a

	cd a

	echo 'first' > f
	q git/add f
	q git/commit -m base f
	r=`{git/query HEAD}

	echo 0 > f
	q git/commit -m a.0 .
	a=`{git/query HEAD}

	for(i in `{seq 10}){
		echo $i > f
		q git/commit -m a.$i .
	}

	q git/branch -nb $r merge
	echo x > f
	q git/commit -m b.0 .
	b=`{git/query HEAD}

	qq git/merge front
	q git/commit -m merge .
	m=`{git/query HEAD}

~ `{git/query $a $m @} $a || die lca a-m
~ `{git/query $a $b @} $r || die lca a-b
~ `{git/query $a $r @} $r || die lca a-r
}

#       a
#       ↓
# b→c→d→e→f
#
# date order (oldest to newest): f d c b e a
echo @@ test lca rebase @@
@{
	q git/init b
	cd b

	touch f

	fn commit {
		git/save -n regress -e regress $* f
	}

	f=`{commit -m f -d 1}
	e=`{commit -m e -d 5 -p $f}
	d=`{commit -m d -d 2 -p $e}
	c=`{commit -m c -d 3 -p $d}
	b=`{commit -m b -d 4 -p $c}
	a=`{commit -m a -d 6 -p $e}

~ `{git/query $a $b @} $e || die lca a-b
~ `{git/query $b $a @} $e || die lca b-a
}