Re: [PATCH 2/5] add object-cache infrastructure

On Tue, Jul 12, 2011 at 11:07:16PM +0200, Clemens Buchacher wrote:

Exactly. The case I am talking about is where the patch-id's are
different but there are no conflicts. I have worked out an example
for git and darcs. Below are two scripts to demonstrate.

Oops, that was the same script twice. Here are the darcs and git
versions, respectively:

#!/bin/sh
#
# Darcs recognizes matching upstream changes
#

testdir=test-darcs

mkdir "$testdir" || exit 1

(
	cd "$testdir"
	mkdir master
	cd master
	darcs init

	for line in $(seq 20)
	do
		echo $line >>file
	done

	darcs add file
	darcs record -a -m initial

	cd ..
	darcs get master side
	cd side
	sed -i '5 s/^.*$/original change/' file
	darcs record -a -m 'original change'

	cd ../master
	sed -i '5 s/.*/original change/' file
	sed -i '15 s/^.*$/with an extra hunk/' file
	darcs record -a -m 'original change'

	sed -i '5 s/.*/modified change/' file
	darcs record -a -m 'modified change'

	darcs pull -a ../side
)


#!/bin/sh
#
# Git does not recognize matching upstream changes
#

testdir=test-git

mkdir "$testdir" || exit 1

(
	cd "$testdir"
	git init -q

	for line in $(seq 20)
	do
		echo $line >>file
	done

	git add file
	git commit -q -m initial

	git checkout -q -b side
	sed -i '5 s/^.*$/original change/' file
	git add file
	git commit -q -m 'original change'

	git checkout -q master
	sed -i '5 s/.*/original change/' file
	sed -i '15 s/^.*$/with an extra hunk/' file
	git add file
	git commit -q -m 'original change'

	sed -i '5 s/.*/modified change/' file
	git add file
	git commit -q -m 'modified change'

	git rebase master side
	git diff
)