[PATCH v2 6/8] gitweb: Push formatting diff lines to print_diff_chunk()

["Michał Kiedrowicz" <michal.kiedrowicz@gmail.com>]

Now git_patchset_body() only calls diff_line_class(), which is removed
from process_diff_line(). The latter function is renamed to
format_diff_line() and its output is changed to return only
HTML-formatted line, which brings it in line with outher format_*
subroutined.

This slightly changes the order of operations performed on diff lines.
Before this commit, each read line was formatted and then put to the
@chunk accumulator. Now, lines are formatted inside print_diff_chunk(),

This is a preparation patch for diff refinement highlightning. It's not
meant to change gitweb output.

Signed-off-by: Michał Kiedrowicz <michal.kiedrowicz@gmail.com>
Acked-by: Jakub Narębski <jnareb@gmail.com>
---
 gitweb/gitweb.perl |   25 ++++++++++++-------------
 1 files changed, 12 insertions(+), 13 deletions(-)

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index aacf518..db32588 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -2426,12 +2426,9 @@ sub format_cc_diff_chunk_header {
 }
 
 # process patch (diff) line (not to be used for diff headers),
-# returning class and HTML-formatted (but not wrapped) line
-sub process_diff_line {
-	my $line = shift;
-	my ($from, $to) = @_;
-
-	my $diff_class = diff_line_class($line, $from, $to);
+# returning HTML-formatted (but not wrapped) line
+sub format_diff_line {
+	my ($line, $diff_class, $from, $to) = @_;
 
 	chomp $line;
 	$line = untabify($line);
@@ -2448,7 +2445,7 @@ sub process_diff_line {
 	$diff_classes .= " $diff_class" if ($diff_class);
 	$line = "<div class=\"$diff_classes\">$line</div>\n";
 
-	return $diff_class, $line;
+	return $line;
 }
 
 # Generates undef or something like "_snapshot_" or "snapshot (_tbz2_ _zip_)",
@@ -5070,7 +5067,7 @@ sub print_diff_lines {
 }
 
 sub print_diff_chunk {
-	my ($diff_style, $is_combined, @chunk) = @_;
+	my ($diff_style, $is_combined, $from, $to, @chunk) = @_;
 	my (@ctx, @rem, @add);
 
 	# The class of the previous line. 
@@ -5092,6 +5089,8 @@ sub print_diff_chunk {
 	foreach my $line_info (@chunk) {
 		my ($class, $line) = @$line_info;
 
+		$line = format_diff_line($line, $class, $from, $to);
+
 		# print chunk headers
 		if ($class && $class eq 'chunk_header') {
 			print $line;
@@ -5245,19 +5244,19 @@ sub git_patchset_body {
 
 			next PATCH if ($patch_line =~ m/^diff /);
 
-			my ($class, $line) = process_diff_line($patch_line, \%from, \%to);
+			my $class = diff_line_class($patch_line, \%from, \%to);
 
 			if ($class eq 'chunk_header') {
-				print_diff_chunk($diff_style, $is_combined, @chunk);
-				@chunk = ( [ $class, $line ] );
+				print_diff_chunk($diff_style, $is_combined, \%from, \%to, @chunk);
+				@chunk = ( [ $class, $patch_line ] );
 			} else {
-				push @chunk, [ $class, $line ];
+				push @chunk, [ $class, $patch_line ];
 			}
 		}
 
 	} continue {
 		if (@chunk) {
-			print_diff_chunk($diff_style, $is_combined, @chunk);
+			print_diff_chunk($diff_style, $is_combined, \%from, \%to, @chunk);
 			@chunk = ();
 		}
 		print "</div>\n"; # class="patch"
-- 
1.7.8.4