gitweb: Refactor 'log' action generation, adding git_log_body()

Put the main part of 'log' view generation into git_log_body,
similarly how it is done for 'shortlog' and 'history' views (and
also for 'tags' and 'heads' views).

This is preparation for extracting common code between 'log',
'shortlog' and 'history' actions.

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

gitweb/gitweb.perl

@@ -4361,6 +4361,46 @@ sub git_project_list_body {
 	print "</table>\n";
 }
 
+sub git_log_body {
+	# uses global variable $project
+	my ($commitlist, $from, $to, $refs, $extra) = @_;
+
+	$from = 0 unless defined $from;
+	$to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
+
+	for (my $i = 0; $i <= $to; $i++) {
+		my %co = %{$commitlist->[$i]};
+		next if !%co;
+		my $commit = $co{'id'};
+		my $ref = format_ref_marker($refs, $commit);
+		my %ad = parse_date($co{'author_epoch'});
+		git_print_header_div('commit',
+		               "<span class=\"age\">$co{'age_string'}</span>" .
+		               esc_html($co{'title'}) . $ref,
+		               $commit);
+		print "<div class=\"title_text\">\n" .
+		      "<div class=\"log_link\">\n" .
+		      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
+		      " | " .
+		      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
+		      " | " .
+		      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
+		      "<br/>\n" .
+		      "</div>\n";
+		      git_print_authorship(\%co, -tag => 'span');
+		      print "<br/>\n</div>\n";
+
+		print "<div class=\"log_body\">\n";
+		git_print_log($co{'comment'}, -final_empty_line=> 1);
+		print "</div>\n";
+	}
+	if ($extra) {
+		print "<div class=\"page_nav\">\n";
+		print "$extra\n";
+		print "</div>\n";
+	}
+}
+
 sub git_shortlog_body {
 	# uses global variable $project
 	my ($commitlist, $from, $to, $refs, $extra) = @_;
@@ -5310,7 +5350,12 @@ sub git_log {
 	my @commitlist = parse_commits($hash, 101, (100 * $page));
 
 	my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#commitlist >= 100);
-
+	my $next_link;
+	if ($#commitlist >= 100) {
+		$next_link =
+			$cgi->a({-href => href(-replay=>1, page=>$page+1),
+			         -accesskey => "n", -title => "Alt-n"}, "next");
+	}
 	my ($patch_max) = gitweb_get_feature('patches');
 	if ($patch_max) {
 		if ($patch_max < 0 || @commitlist <= $patch_max) {
@@ -5329,39 +5374,9 @@ sub git_log {
 		git_print_header_div('summary', $project);
 		print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
 	}
-	my $to = ($#commitlist >= 99) ? (99) : ($#commitlist);
-	for (my $i = 0; $i <= $to; $i++) {
-		my %co = %{$commitlist[$i]};
-		next if !%co;
-		my $commit = $co{'id'};
-		my $ref = format_ref_marker($refs, $commit);
-		my %ad = parse_date($co{'author_epoch'});
-		git_print_header_div('commit',
-		               "<span class=\"age\">$co{'age_string'}</span>" .
-		               esc_html($co{'title'}) . $ref,
-		               $commit);
-		print "<div class=\"title_text\">\n" .
-		      "<div class=\"log_link\">\n" .
-		      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
-		      " | " .
-		      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
-		      " | " .
-		      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
-		      "<br/>\n" .
-		      "</div>\n";
-		      git_print_authorship(\%co, -tag => 'span');
-		      print "<br/>\n</div>\n";
 
-		print "<div class=\"log_body\">\n";
-		git_print_log($co{'comment'}, -final_empty_line=> 1);
-		print "</div>\n";
-	}
-	if ($#commitlist >= 100) {
-		print "<div class=\"page_nav\">\n";
-		print $cgi->a({-href => href(-replay=>1, page=>$page+1),
-			       -accesskey => "n", -title => "Alt-n"}, "next");
-		print "</div>\n";
-	}
+	git_log_body(\@commitlist, 0, 99, $refs, $next_link);
+
 	git_footer_html();
 }