[PATCH 1/3] 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 cell 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 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.
I'd like to see what other possible solution would you like to have.

Bikeshedding open!

 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 d05bc37..5e2f629 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 6a1b5b5..fe73c2c 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