documentation: replace Discussion section by link to user-manual chapter

[git.git] / git-svn.perl

diff --git a/git-svn.perl b/git-svn.perl
index fbd4691bc52a91b408c73e119fcddcab6454b70a..f8181609f942b22dc95992740326e8b5788feba5 100755 (executable)
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -841,14 +841,9 @@ sub working_head_info {
 
 sub read_commit_parents {
        my ($parents, $c) = @_;
-       my ($fh, $ctx) = command_output_pipe(qw/cat-file commit/, $c);
-       while (<$fh>) {
-               chomp;
-               last if '';
-               /^parent ($sha1)/ or next;
-               push @{$parents->{$c}}, $1;
-       }
-       close $fh; # break the pipe
+       chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
+       $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
+       @{$parents->{$c}} = split(/ /, $p);
 }
 
 sub linearize_history {