Re: may be bug in svn fetch no-follow-parent

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Александр Овчинников <proff@proff.email> wrote:
> Unfortunately this is not open source repository. I agree that it is pointless try to handle mergeinfo (because it always fails).
> Cases when it is expensive:
> 1. delete and restore mergeinfo property
> 2. merge trunk to very old branch
> 3. create, delete, create branch with --no-follow-parent. All records in mergeinfo will be hadled like new.
> 
> I already patched like this and this is helpfull, works fine and fast.

Thanks for the info.  Patch + pull request below for Junio.

> I can share only mergeinfo property

Oops, looks like your zip attachment got flagged as spam for
my mailbox and swallowed by vger.kernel.org :x

---------8<--------
Subject: [PATCH] git-svn: skip mergeinfo handling with --no-follow-parent

For repositories without parent following enabled, finding
git parents through svn:mergeinfo or svk::parents can be
expensive and pointless.

Reported-by: Александр Овчинников <proff@proff.email>
	http://mid.gmane.org/4094761466408188@xxxxxxxxxxxxxxxx

Signed-off-by: Eric Wong <e@xxxxxxxxx>
---
  The following changes since commit ab7797dbe95fff38d9265869ea367020046db118:

    Start the post-2.9 cycle (2016-06-20 11:06:49 -0700)

  are available in the git repository at:

    git://bogomips.org/git-svn.git svn-nfp-mergeinfo

  for you to fetch changes up to 6d523a3ab76cfa4ed9ae0ed9da7af43efcff3f07:

    git-svn: skip mergeinfo handling with --no-follow-parent (2016-06-22 22:48:54 +0000)

  ----------------------------------------------------------------
  Eric Wong (1):
        git-svn: skip mergeinfo handling with --no-follow-parent

 perl/Git/SVN.pm | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/perl/Git/SVN.pm b/perl/Git/SVN.pm
index d94d01c..bee1e7d 100644
--- a/perl/Git/SVN.pm
+++ b/perl/Git/SVN.pm
@@ -1905,15 +1905,22 @@ sub make_log_entry {
 
 	my @parents = @$parents;
 	my $props = $ed->{dir_prop}{$self->path};
-	if ( $props->{"svk:merge"} ) {
-		$self->find_extra_svk_parents($props->{"svk:merge"}, \@parents);
-	}
-	if ( $props->{"svn:mergeinfo"} ) {
-		my $mi_changes = $self->mergeinfo_changes
-			($parent_path, $parent_rev,
-			 $self->path, $rev,
-			 $props->{"svn:mergeinfo"});
-		$self->find_extra_svn_parents($mi_changes, \@parents);
+	if ($self->follow_parent) {
+		my $tickets = $props->{"svk:merge"};
+		if ($tickets) {
+			$self->find_extra_svk_parents($tickets, \@parents);
+		}
+
+		my $mergeinfo_prop = $props->{"svn:mergeinfo"};
+		if ($mergeinfo_prop) {
+			my $mi_changes = $self->mergeinfo_changes(
+						$parent_path,
+						$parent_rev,
+						$self->path,
+						$rev,
+						$mergeinfo_prop);
+			$self->find_extra_svn_parents($mi_changes, \@parents);
+		}
 	}
 
 	open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
-- 
EW
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