gitweb: Remove git_to_hash function

Remove git_to_hash function, which was to translate symbolic reference
to hash, and it's use in git_blobdiff.  We don't try so hard to guess
filename if it was not provided.

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 9aa7e4df41a797cd6060858330246077ab0b8a90..8d28207b1f5eb5a0e5f43f0324797f2a9550892a 100755 (executable)
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -625,26 +625,6 @@ sub git_get_hash_by_path {
        return $3;
 }
 
-# converts symbolic name to hash
-sub git_to_hash {
-       my @params = @_;
-       return undef unless @params;
-
-       open my $fd, "-|", $GIT, "rev-parse", @params
-               or return undef;
-       my @hashes = map { chomp; $_ } <$fd>;
-       close $fd;
-
-       if (wantarray) {
-               return @hashes;
-       } elsif (scalar(@hashes) == 1) {
-               # single hash
-               return $hashes[0];
-       } else {
-               return \@hashes;
-       }
-}
-
 ## ......................................................................
 ## git utility functions, directly accessing git repository
 
@@ -2733,6 +2713,9 @@ sub git_blobdiff {
                        if ($hash !~ /[0-9a-fA-F]{40}/) {
                                $hash = git_to_hash($hash);
                        }
+               } elsif (defined $hash &&
+                        $hash =~ /[0-9a-fA-F]{40}/) {
+                       # try to find filename from $hash
 
                        # read filtered raw output
                        open $fd, "-|", $GIT, "diff-tree", '-r', '-M', '-C', $hash_parent_base, $hash_base