gitweb: Support comparing blobs (files) with different names

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 334858322785d165261ddb926fc990f0f91982dd..3786955fca80bfd6cc15e4cc5b8682685a3a8298 100755 (executable)
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -3885,7 +3885,7 @@ sub git_blobdiff {
                        # read raw output
                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
                                $hash_parent_base, $hash_base,
-                               "--", $file_name
+                               "--", (defined $file_parent ? $file_parent : ()), $file_name
                                or die_error(undef, "Open git-diff-tree failed");
                        @difftree = map { chomp; $_ } <$fd>;
                        close $fd
@@ -3935,7 +3935,7 @@ sub git_blobdiff {
                # open patch output
                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
                        '-p', $hash_parent_base, $hash_base,
-                       "--", $file_name
+                       "--", (defined $file_parent ? $file_parent : ()), $file_name
                        or die_error(undef, "Open git-diff-tree failed");
        }