[PATCH 02/10] gitweb: Mark boundary commits in 'blame' view

[Jakub Narebski <jnareb@gmail.com>]

Use "boundary" class to mark boundary commits, which currently results
in using bold weight font for SHA-1 of a commit (to be more exact for
all text in the first cell in row, that contains SHA-1 of a commit).

Detecting boundary commits is done by watching for "boundary" header
in "git blame -p" output.  Because this header doesn't carry
additional data the regular expression for blame header fields
had to be slightly adjusted.

With current gitweb API only root (parentless) commits can be boundary
commits.

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
---
Formatting (styling) of boundary commits is currently very minimal.

This is just resend of previous version of patch.

 gitweb/gitweb.css  |    4 ++++
 gitweb/gitweb.perl |    6 ++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/gitweb/gitweb.css b/gitweb/gitweb.css
index 70b7c2f..f47709b 100644
--- a/gitweb/gitweb.css
+++ b/gitweb/gitweb.css
@@ -242,6 +242,10 @@ tr.dark:hover {
 	background-color: #edece6;
 }
 
+tr.boundary td.sha1 {
+	font-weight: bold;
+}
+
 td {
 	padding: 2px 5px;
 	font-size: 100%;
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 7fbd5ff..3078b92 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -4826,7 +4826,7 @@ HTML
 		while ($data = <$fd>) {
 			chomp $data;
 			last if ($data =~ s/^\t//); # contents of line
-			if ($data =~ /^(\S+) (.*)$/) {
+			if ($data =~ /^(\S+)(?: (.*))?$/) {
 				$meta->{$1} = $2;
 			}
 		}
@@ -4838,7 +4838,9 @@ HTML
 		if ($group_size) {
 			$current_color = ($current_color + 1) % $num_colors;
 		}
-		print "<tr id=\"l$lineno\" class=\"$rev_color[$current_color]\">\n";
+		my $tr_class = $rev_color[$current_color];
+		$tr_class .= ' boundary' if (exists $meta->{'boundary'});
+		print "<tr id=\"l$lineno\" class=\"$tr_class\">\n";
 		if ($group_size) {
 			print "<td class=\"sha1\"";
 			print " title=\"". esc_html($author) . ", $date\"";
-- 
1.6.3.3