[PATCH] Advertise per branch RSS/Atom feeds

[Junio C Hamano <gitster@pobox.com>]

The feeder code had provisions to accept 'h' parameter to
specify which branch to send the feed data from, but there was
no link that advertised this capability on the pages.

This adds h parameter to the footer of shortlog/log page for the
branch.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

 gitweb/gitweb.perl |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index f282a67..6c1da14 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -2378,12 +2378,16 @@ sub git_footer_html {
 	print "<div class=\"page_footer\">\n";
 	if (defined $project) {
 		my $descr = git_get_project_description($project);
+		my @tips = ();
+		if ($hash !~ /^[0-9a-fA-F]{40}$/) {
+			@tips = (hash => $hash);
+		}
 		if (defined $descr) {
 			print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
 		}
-		print $cgi->a({-href => href(action=>"rss"),
+		print $cgi->a({-href => href(action=>"rss", @tips),
 		              -class => "rss_logo"}, "RSS") . " ";
-		print $cgi->a({-href => href(action=>"atom"),
+		print $cgi->a({-href => href(action=>"atom", @tips),
 		              -class => "rss_logo"}, "Atom") . "\n";
 	} else {
 		print $cgi->a({-href => href(project=>undef, action=>"opml"),