From: Junio C Hamano <redacted>
Date: Sat, 1 Jul 2006 01:54:32 +0000 (-0700)
Subject: gitweb: optimize per-file history generation
X-Git-Url: https://git.ladys.computer/Gitweb/commitdiff_plain/0792b368cb85d254c192c827440788e79e8c185ad12d977cef5955bd529f7a8b

gitweb: optimize per-file history generation

The rev-list command that is recent enough can filter commits
based on paths they touch, so use it instead of generating the
full list and limiting it by passing it with diff-tree --stdin.

[jc: The patch originally came from Luben Tuikov but the it was
 corrupt, but it was short enough to be applied by hand.  I
 added the --full-history to make the output compatible with the
 original while doing so.]

Signed-off-by: Junio C Hamano <redacted>
---

diff --git a/gitweb.cgi b/gitweb.cgi
index b7ea0fd..10f8fda 100755
--- a/gitweb.cgi
+++ b/gitweb.cgi
@@ -2295,16 +2295,13 @@ sub git_history {
 	      "</div>\n";
 	print "<div class=\"page_path\"><b>/" . esc_html($file_name) . "</b><br/></div>\n";
 
-	open my $fd, "-|", "$gitbin/git-rev-list $hash | $gitbin/git-diff-tree -r --stdin -- \'$file_name\'";
-	my $commit;
+	open my $fd, "-|",
+		"$gitbin/git-rev-list --full-history $hash -- \'$file_name\'";
 	print "<table cellspacing=\"0\">\n";
 	my $alternate = 0;
 	while (my $line = <$fd>) {
 		if ($line =~ m/^([0-9a-fA-F]{40})/){
-			$commit = $1;
-			next;
-		}
-		if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/ && (defined $commit)) {
+			my $commit = $1;
 			my %co = git_read_commit($commit);
 			if (!%co) {
 				next;
@@ -2336,7 +2333,6 @@ sub git_history {
 			}
 			print "</td>\n" .
 			      "</tr>\n";
-			undef $commit;
 		}
 	}
 	print "</table>\n";