gitweb: Faster return from git_get_preceding_references if possible

Return on first ref found when git_get_preceding_references
is called in scalar context

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index b964302a5aa9a24cedc39bb3ffcabb9bc91b6f50..01452d2c747bb29540d512ece6887c91b2ef040e 100755 (executable)
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -789,16 +789,15 @@ sub git_get_preceding_references {
                or return undef;
 
        my @reflist;
-       my $firstref;
 
        foreach my $commit (@commits) {
                foreach my $ref (@{$refs->{$commit}}) {
-                       $firstref = $ref unless $firstref;
+                       return $ref unless wantarray;
                        push @reflist, $ref;
                }
        }
 
-       return wantarray ? @reflist : $firstref;
+       return @reflist;
 }
 
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