threads / patch / 33336

patchgit-svn: avoid self-referencing mergeinfo

Subject: [PATCH] git-svn: avoid self-referencing mergeinfo

## tl;dr

2 messages between Mar 30, 2013 and Apr 4, 2013. Diffs are folded; open one to read it.

replies: 1people: 2as markdown or json

Michael Contreras· Mar 30, 2013, 22:06 UTC · lore

When svn.pushmergeinfo is set, the target branch is included in the mergeinfo if it was previously merged into one of the source branches. SVN does not do this.

Remove merge target branch path from resulting mergeinfo when svn.pushmergeinfo is set to better match the behavior of SVN. Update the svn-mergeinfo-push test.

Signed-off-by: Michael Contreras <michael@inetric.com>
Reported-by: Avishay Lavie <avishay.lavie@gmail.com>
---

Avishay's original patch was never applied. http://thread.gmane.org/gmane.comp.version-control.git/193123

 git-svn.perl                      | 9 ++++++---
 t/t9161-git-svn-mergeinfo-push.sh | 1 -
 2 files changed, 6 insertions(+), 4 deletions(-)
Show changes to 2 files +6 −4

git-svn.perl, t/t9161-git-svn-mergeinfo-push.sh

diff --git a/git-svn.perl b/git-svn.perl
index b46795f..bd4388d 100755
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -669,12 +669,14 @@ sub merge_revs_into_hash {
 }
 
 sub merge_merge_info {
-	my ($mergeinfo_one, $mergeinfo_two) = @_;
+	my ($mergeinfo_one, $mergeinfo_two, $ignore_branch) = @_;
 	my %result_hash = ();
 
 	merge_revs_into_hash(\%result_hash, $mergeinfo_one);
 	merge_revs_into_hash(\%result_hash, $mergeinfo_two);
 
+	delete $result_hash{$ignore_branch} if $ignore_branch;
+
 	my $result = '';
 	# Sort below is for consistency's sake
 	for my $branchname (sort keys(%result_hash)) {
@@ -695,6 +697,7 @@ sub populate_merge_info {
 		my $all_parents_ok = 1;
 		my $aggregate_mergeinfo = '';
 		my $rooturl = $gs->repos_root;
+		my ($target_branch) = $gs->full_pushurl =~ /^\Q$rooturl\E(.*)/;
 
 		if (defined($rewritten_parent)) {
 			# Replace first parent with newly-rewritten version
@@ -726,7 +729,7 @@ sub populate_merge_info {
 			# Merge previous mergeinfo values
 			$aggregate_mergeinfo =
 				merge_merge_info($aggregate_mergeinfo,
-								 $par_mergeinfo, 0);
+								 $par_mergeinfo, $target_branch);
 
 			next if $parent eq $parents[0]; # Skip first parent
 			# Add new changes being placed in tree by merge
@@ -769,7 +772,7 @@ sub populate_merge_info {
 			my $newmergeinfo = "$branchpath:" . join(',', @revsin);
 			$aggregate_mergeinfo =
 				merge_merge_info($aggregate_mergeinfo,
-								 $newmergeinfo, 1);
+								 $newmergeinfo, $target_branch);
 		}
 		if ($all_parents_ok and $aggregate_mergeinfo) {
 			return $aggregate_mergeinfo;
diff --git a/t/t9161-git-svn-mergeinfo-push.sh b/t/t9161-git-svn-mergeinfo-push.sh
index 6ef0c0b..1eab701 100755
--- a/t/t9161-git-svn-mergeinfo-push.sh
+++ b/t/t9161-git-svn-mergeinfo-push.sh
@@ -88,7 +88,6 @@ test_expect_success 'check reintegration mergeinfo' '
 	test "$mergeinfo" = "/branches/svnb1:2-4,7-9,13-18
 /branches/svnb2:3,8,16-17
 /branches/svnb3:4,9
-/branches/svnb4:5-6,10-12
 /branches/svnb5:6,11"
 	'
 
-- 
1.8.2
Eric Wong· Apr 4, 2013, 01:31 UTC · re: Michael Contreras · lore

Re: [PATCH] git-svn: avoid self-referencing mergeinfo

Michael Contreras <michael@inetric.com> wrote:
Show 10 quoted lines
> When svn.pushmergeinfo is set, the target branch is included in the
> mergeinfo if it was previously merged into one of the source branches.
> SVN does not do this.
> 
> Remove merge target branch path from resulting mergeinfo when
> svn.pushmergeinfo is set to better match the behavior of SVN. Update the
> svn-mergeinfo-push test.
> 
> Signed-off-by: Michael Contreras <michael@inetric.com>
> Reported-by: Avishay Lavie <avishay.lavie@gmail.com>
Acked-by: Eric Wong <normalperson@yhbt.net>

80-column wrapped version pushed to git://bogomips.org/git-svn master (commit e5ee78e1f0835410a37bfa38e1ff5e1a82f8c7b5)

Will ask Junio to pull unless Sam (our mergeinfo expert) gives a NACK soon.

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