X-Git-Url: https://git.ladys.computer/Gitweb/blobdiff_plain/9cdf37d1cc4a48a69440e72c40ea3c3e8e7d9cd8c81f9a99c2c2999a8fa5a3ea..3e5182036163c1d49fbd5a3c5d328cf4b8705dd4db799dcd1e273af15ee27284:/gitweb.cgi

diff --git a/gitweb.cgi b/gitweb.cgi
index f468a5b..b7c012d 100755
--- a/gitweb.cgi
+++ b/gitweb.cgi
@@ -16,54 +16,56 @@ use Encode;
 use Fcntl ':mode';
 binmode STDOUT, ':utf8';
 
-my $cgi = new CGI;
-my $version = "267";
-my $my_url = $cgi->url();
-my $my_uri = $cgi->url(-absolute => 1);
-my $rss_link = "";
+our $cgi = new CGI;
+our $version = "267";
+our $my_url = $cgi->url();
+our $my_uri = $cgi->url(-absolute => 1);
+our $rss_link = "";
 
-# location of the git-core binaries
-my $gitbin = "/usr/bin";
+# core git executable to use
+# this can just be "git" if your webserver has a sensible PATH
+our $GIT = "/usr/bin/git";
 
 # absolute fs-path which will be prepended to the project path
-#my $projectroot = "/pub/scm";
-my $projectroot = "/home/kay/public_html/pub/scm";
+#our $projectroot = "/pub/scm";
+our $projectroot = "/home/kay/public_html/pub/scm";
 
-# version of the git-core binaries
-my $git_version = qx($gitbin/git --version);
-if ($git_version =~ m/git version (.*)$/) {
-	$git_version = $1;
-} else {
-	$git_version = "unknown";
-}
+# version of the core git binary
+our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 
 # location for temporary files needed for diffs
-my $git_temp = "/tmp/gitweb";
+our $git_temp = "/tmp/gitweb";
+if (! -d $git_temp) {
+	mkdir($git_temp, 0700) || die_error("Couldn't mkdir $git_temp");
+}
 
 # target of the home link on top of all pages
-my $home_link = $my_uri;
+our $home_link = $my_uri;
+
+# name of your site or organization to appear in page titles
+# replace this with something more descriptive for clearer bookmarks
+our $site_name = $ENV{'SERVER_NAME'} || "Untitled";
 
 # html text to include at home page
-my $home_text = "indextext.html";
+our $home_text = "indextext.html";
 
 # URI of default stylesheet
-my $stylesheet = "gitweb.css";
+our $stylesheet = "gitweb.css";
 
 # source of projects list
-#my $projects_list = $projectroot;
-my $projects_list = "index/index.aux";
+#our $projects_list = $projectroot;
+our $projects_list = "index/index.aux";
 
 # default blob_plain mimetype and default charset for text/plain blob
-my $default_blob_plain_mimetype = 'text/plain';
-my $default_text_plain_charset  = undef;
+our $default_blob_plain_mimetype = 'text/plain';
+our $default_text_plain_charset  = undef;
 
 # file to use for guessing MIME types before trying /etc/mime.types
 # (relative to the current git repository)
-my $mimetypes_file = undef;
-
+our $mimetypes_file = undef;
 
 # input validation and dispatch
-my $action = $cgi->param('a');
+our $action = $cgi->param('a');
 if (defined $action) {
 	if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 		undef $action;
@@ -78,7 +80,7 @@ if (defined $action) {
 	}
 }
 
-my $order = $cgi->param('o');
+our $order = $cgi->param('o');
 if (defined $order) {
 	if ($order =~ m/[^0-9a-zA-Z_]/) {
 		undef $order;
@@ -86,8 +88,9 @@ if (defined $order) {
 	}
 }
 
-my $project = $cgi->param('p');
+our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
 if (defined $project) {
+	$project =~ s|^/||; $project =~ s|/$||;
 	$project = validate_input($project);
 	if (!defined($project)) {
 		die_error(undef, "Invalid project parameter.");
@@ -101,14 +104,14 @@ if (defined $project) {
 		die_error(undef, "No such project.");
 	}
 	$rss_link = "<link rel=\"alternate\" title=\"" . esc_param($project) . " log\" href=\"" .
-		    "$my_uri?" . esc_param("p=$project;a=rss") . "\" type=\"application/rss+xml\"/>";
+	            "$my_uri?" . esc_param("p=$project;a=rss") . "\" type=\"application/rss+xml\"/>";
 	$ENV{'GIT_DIR'} = "$projectroot/$project";
 } else {
 	git_project_list();
 	exit;
 }
 
-my $file_name = $cgi->param('f');
+our $file_name = $cgi->param('f');
 if (defined $file_name) {
 	$file_name = validate_input($file_name);
 	if (!defined($file_name)) {
@@ -116,7 +119,7 @@ if (defined $file_name) {
 	}
 }
 
-my $hash = $cgi->param('h');
+our $hash = $cgi->param('h');
 if (defined $hash) {
 	$hash = validate_input($hash);
 	if (!defined($hash)) {
@@ -124,7 +127,7 @@ if (defined $hash) {
 	}
 }
 
-my $hash_parent = $cgi->param('hp');
+our $hash_parent = $cgi->param('hp');
 if (defined $hash_parent) {
 	$hash_parent = validate_input($hash_parent);
 	if (!defined($hash_parent)) {
@@ -132,7 +135,7 @@ if (defined $hash_parent) {
 	}
 }
 
-my $hash_base = $cgi->param('hb');
+our $hash_base = $cgi->param('hb');
 if (defined $hash_base) {
 	$hash_base = validate_input($hash_base);
 	if (!defined($hash_base)) {
@@ -140,7 +143,7 @@ if (defined $hash_base) {
 	}
 }
 
-my $page = $cgi->param('pg');
+our $page = $cgi->param('pg');
 if (defined $page) {
 	if ($page =~ m/[^0-9]$/) {
 		undef $page;
@@ -148,7 +151,7 @@ if (defined $page) {
 	}
 }
 
-my $searchtext = $cgi->param('s');
+our $searchtext = $cgi->param('s');
 if (defined $searchtext) {
 	if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 		undef $searchtext;
@@ -224,7 +227,7 @@ if (!defined $action || $action eq "summary") {
 	git_tag();
 	exit;
 } elsif ($action eq "blame") {
-	git_blame();
+	git_blame2();
 	exit;
 } else {
 	undef $action;
@@ -247,6 +250,7 @@ sub esc_html {
 	my $str = shift;
 	$str = decode("utf8", $str, Encode::FB_DEFAULT);
 	$str = escapeHTML($str);
+	$str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 	return $str;
 }
 
@@ -277,7 +281,7 @@ sub git_header_html {
 	my $status = shift || "200 OK";
 	my $expires = shift;
 
-	my $title = "git";
+	my $title = "$site_name git";
 	if (defined $project) {
 		$title .= " - $project";
 		if (defined $action) {
@@ -290,7 +294,17 @@ sub git_header_html {
 			}
 		}
 	}
-	print $cgi->header(-type=>'text/html',  -charset => 'utf-8', -status=> $status, -expires => $expires);
+	my $content_type;
+	# require explicit support from the UA if we are to send the page as
+	# 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
+	# we have to do this because MSIE sometimes globs '*/*', pretending to
+	# support xhtml+xml but choking when it gets what it asked for.
+	if ($cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ && $cgi->Accept('application/xhtml+xml') != 0) {
+		$content_type = 'application/xhtml+xml';
+	} else {
+		$content_type = 'text/html';
+	}
+	print $cgi->header(-type=>$content_type, -charset => 'utf-8', -status=> $status, -expires => $expires);
 	print <<EOF;
 <?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
@@ -298,7 +312,7 @@ sub git_header_html {
 <!-- git web interface v$version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
 <!-- git core binaries version $git_version -->
 <head>
-<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
+<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
 <meta name="robots" content="index, nofollow"/>
 <title>$title</title>
 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
@@ -321,10 +335,12 @@ EOF
 			$searchtext = "";
 		}
 		my $search_hash;
-		if (defined $hash) {
+		if (defined $hash_base) {
+			$search_hash = $hash_base;
+		} elsif (defined $hash) {
 			$search_hash = $hash;
 		} else {
-			$search_hash  = "HEAD";
+			$search_hash = "HEAD";
 		}
 		$cgi->param("a", "search");
 		$cgi->param("h", $search_hash);
@@ -370,10 +386,74 @@ sub die_error {
 	exit;
 }
 
+sub git_page_nav {
+	my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
+	$extra = '' if !defined $extra; # pager or formats
+
+	my @navs = qw(summary shortlog log commit commitdiff tree);
+	if ($suppress) {
+		@navs = grep { $_ ne $suppress } @navs;
+	}
+
+	my %arg = map { $_, ''} @navs;
+	if (defined $head) {
+		for (qw(commit commitdiff)) {
+			$arg{$_} = ";h=$head";
+		}
+		if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
+			for (qw(shortlog log)) {
+				$arg{$_} = ";h=$head";
+			}
+		}
+	}
+	$arg{tree} .= ";h=$treehead" if defined $treehead;
+	$arg{tree} .= ";hb=$treebase" if defined $treebase;
+
+	print "<div class=\"page_nav\">\n" .
+		(join " | ",
+		 map { $_ eq $current
+					 ? $_
+					 : $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$_$arg{$_}")}, "$_")
+				 }
+		 @navs);
+	print "<br/>\n$extra<br/>\n" .
+	      "</div>\n";
+}
+
+sub git_get_paging_nav {
+	my ($action, $hash, $head, $page, $nrevs) = @_;
+	my $paging_nav;
+
+
+	if ($hash ne $head || $page) {
+		$paging_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$action")}, "HEAD");
+	} else {
+		$paging_nav .= "HEAD";
+	}
+
+	if ($page > 0) {
+		$paging_nav .= " &sdot; " .
+			$cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$action;h=$hash;pg=" . ($page-1)),
+							 -accesskey => "p", -title => "Alt-p"}, "prev");
+	} else {
+		$paging_nav .= " &sdot; prev";
+	}
+
+	if ($nrevs >= (100 * ($page+1)-1)) {
+		$paging_nav .= " &sdot; " .
+			$cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$action;h=$hash;pg=" . ($page+1)),
+							 -accesskey => "n", -title => "Alt-n"}, "next");
+	} else {
+		$paging_nav .= " &sdot; next";
+	}
+
+	return $paging_nav;
+}
+
 sub git_get_type {
 	my $hash = shift;
 
-	open my $fd, "-|", "$gitbin/git-cat-file -t $hash" or return;
+	open my $fd, "-|", $GIT, "cat-file", '-t', $hash or return;
 	my $type = <$fd>;
 	close $fd or return;
 	chomp $type;
@@ -385,7 +465,7 @@ sub git_read_head {
 	my $oENV = $ENV{'GIT_DIR'};
 	my $retval = undef;
 	$ENV{'GIT_DIR'} = "$projectroot/$project";
-	if (open my $fd, "-|", "$gitbin/git-rev-parse", "--verify", "HEAD") {
+	if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
 		my $head = <$fd>;
 		close $fd;
 		if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
@@ -425,7 +505,7 @@ sub git_read_tag {
 	my %tag;
 	my @comment;
 
-	open my $fd, "-|", "$gitbin/git-cat-file tag $tag_id" or return;
+	open my $fd, "-|", $GIT, "cat-file", "tag", $tag_id or return;
 	$tag{'id'} = $tag_id;
 	while (my $line = <$fd>) {
 		chomp $line;
@@ -497,7 +577,7 @@ sub git_read_commit {
 		@commit_lines = @$commit_text;
 	} else {
 		$/ = "\0";
-		open my $fd, "-|", "$gitbin/git-rev-list --header --parents --max-count=1 $commit_id" or return;
+		open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id or return;
 		@commit_lines = split '\n', <$fd>;
 		close $fd or return;
 		$/ = "\n";
@@ -595,7 +675,7 @@ sub git_diff_print {
 	if (defined $from) {
 		$from_tmp = "$git_temp/gitweb_" . $$ . "_from";
 		open my $fd2, "> $from_tmp";
-		open my $fd, "-|", "$gitbin/git-cat-file blob $from";
+		open my $fd, "-|", $GIT, "cat-file", "blob", $from;
 		my @file = <$fd>;
 		print $fd2 @file;
 		close $fd2;
@@ -606,7 +686,7 @@ sub git_diff_print {
 	if (defined $to) {
 		$to_tmp = "$git_temp/gitweb_" . $$ . "_to";
 		open my $fd2, "> $to_tmp";
-		open my $fd, "-|", "$gitbin/git-cat-file blob $to";
+		open my $fd, "-|", $GIT, "cat-file", "blob", $to;
 		my @file = <$fd>;
 		print $fd2 @file;
 		close $fd2;
@@ -620,7 +700,7 @@ sub git_diff_print {
 		$/ = "\n";
 	} else {
 		while (my $line = <$fd>) {
-			chomp($line);
+			chomp $line;
 			my $char = substr($line, 0, 1);
 			my $diff_class = "";
 			if ($char eq '+') {
@@ -780,7 +860,7 @@ sub git_read_projects {
 	if (-d $projects_list) {
 		# search in directory
 		my $dir = $projects_list;
-		opendir my $dh, $dir or return undef;
+		opendir my ($dh), $dir or return undef;
 		while (my $dir = readdir($dh)) {
 			if (-e "$projectroot/$dir/HEAD") {
 				my $pr = {
@@ -795,7 +875,7 @@ sub git_read_projects {
 		# 'git%2Fgit.git Linus+Torvalds'
 		# 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 		# 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
-		open my $fd , $projects_list or return undef;
+		open my ($fd), $projects_list or return undef;
 		while (my $line = <$fd>) {
 			chomp $line;
 			my ($path, $owner) = split ' ', $line;
@@ -825,7 +905,7 @@ sub git_get_project_config {
 	$key =~ s/^gitweb\.//;
 	return if ($key =~ m/\W/);
 
-	my $val = qx($gitbin/git-repo-config --get gitweb.$key);
+	my $val = qx($GIT repo-config --get gitweb.$key);
 	return ($val);
 }
 
@@ -908,7 +988,7 @@ sub git_project_list {
 		}
 		$alternate ^= 1;
 		print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary"), -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
-		      "<td>$pr->{'descr'}</td>\n" .
+		      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
 		      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
 		print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" . $pr->{'commit'}{'age_string'} . "</td>\n" .
 		      "<td class=\"link\">" .
@@ -929,7 +1009,7 @@ sub read_info_ref {
 	# c39ae07f393806ccf406ef966e9a15afc43cc36a	refs/tags/v2.6.11^{}
 	open my $fd, "$projectroot/$project/info/refs" or return;
 	while (my $line = <$fd>) {
-		chomp($line);
+		chomp $line;
 		if ($line =~ m/^([0-9a-fA-F]{40})\t.*$type\/([^\^]+)/) {
 			if (defined $refs{$1}) {
 				$refs{$1} .= " / $2";
@@ -1032,23 +1112,16 @@ sub git_summary {
 
 	my $refs = read_info_ref();
 	git_header_html();
-	print "<div class=\"page_nav\">\n" .
-	      "summary".
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree")}, "tree") .
-	      "<br/><br/>\n" .
-	      "</div>\n";
+	git_page_nav('summary','', $head);
 	print "<div class=\"title\">&nbsp;</div>\n";
 	print "<table cellspacing=\"0\">\n" .
 	      "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
 	      "<tr><td>owner</td><td>$owner</td></tr>\n" .
 	      "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n" .
 	      "</table>\n";
-	open my $fd, "-|", "$gitbin/git-rev-list --max-count=17 " . git_read_head($project) or die_error(undef, "Open failed.");
-	my (@revlist) = map { chomp; $_ } <$fd>;
+	open my $fd, "-|", $GIT, "rev-list", "--max-count=17", git_read_head($project)
+		or die_error(undef, "Open git-rev-list failed.");
+	my @revlist = map { chomp; $_ } <$fd>;
 	close $fd;
 	print "<div>\n" .
 	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog"), -class => "title"}, "shortlog") .
@@ -1123,17 +1196,17 @@ sub git_summary {
 				      "</td>\n" .
 				      "<td>";
 				if (defined($comment)) {
-				      print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, $comment);
+					print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, esc_html($comment));
 				}
 				print "</td>\n" .
 				      "<td class=\"link\">";
 				if ($tag{'type'} eq "tag") {
-				      print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
+					print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
 				}
 				print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
 				if ($tag{'reftype'} eq "commit") {
-				      print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
-					    " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
+					print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
+					      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
 				}
 				print "</td>\n" .
 				      "</tr>";
@@ -1184,18 +1257,24 @@ sub git_summary {
 	git_footer_html();
 }
 
+sub git_print_page_path {
+	my $name = shift;
+	my $type = shift;
+
+	if (!defined $name) {
+		print "<div class=\"page_path\"><b>/</b></div>\n";
+	} elsif ($type =~ "blob") {
+		print "<div class=\"page_path\"><b>" .
+			$cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;f=$file_name")}, esc_html($name)) . "</b><br/></div>\n";
+	} else {
+		print "<div class=\"page_path\"><b>" . esc_html($name) . "</b><br/></div>\n";
+	}
+}
+
 sub git_tag {
 	my $head = git_read_head($project);
 	git_header_html();
-	print "<div class=\"page_nav\">\n" .
-	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
-	      "<br/>\n" .
-	      "</div>\n";
+	git_page_nav('','', $head,undef,$head);
 	my %tag = git_read_tag($hash);
 	print "<div>\n" .
 	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($tag{'name'})) . "\n" .
@@ -1223,6 +1302,67 @@ sub git_tag {
 	git_footer_html();
 }
 
+sub git_blame2 {
+	my $fd;
+	my $ftype;
+	die_error(undef, "Permission denied.") if (!git_get_project_config_bool ('blame'));
+	die_error('404 Not Found', "File name not defined") if (!$file_name);
+	$hash_base ||= git_read_head($project);
+	die_error(undef, "Reading commit failed") unless ($hash_base);
+	my %co = git_read_commit($hash_base)
+		or die_error(undef, "Reading commit failed");
+	if (!defined $hash) {
+		$hash = git_get_hash_by_path($hash_base, $file_name, "blob")
+			or die_error(undef, "Error looking up file");
+	}
+	$ftype = git_get_type($hash);
+	if ($ftype !~ "blob") {
+		die_error("400 Bad Request", "object is not a blob");
+	}
+	open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
+		or die_error(undef, "Open git-blame failed.");
+	git_header_html();
+	my $formats_nav =
+		$cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, "blob") .
+		" | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;f=$file_name")}, "head");
+	git_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
+	print "<div>" .
+	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
+	      "</div>\n";
+	git_print_page_path($file_name, $ftype);
+	my @rev_color = (qw(light dark));
+	my $num_colors = scalar(@rev_color);
+	my $current_color = 0;
+	my $last_rev;
+	print "<div class=\"page_body\">\n";
+	print "<table class=\"blame\">\n";
+	print "<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n";
+	while (<$fd>) {
+		/^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
+		my $full_rev = $1;
+		my $rev = substr($full_rev, 0, 8);
+		my $lineno = $2;
+		my $data = $3;
+
+		if (!defined $last_rev) {
+			$last_rev = $full_rev;
+		} elsif ($last_rev ne $full_rev) {
+			$last_rev = $full_rev;
+			$current_color = ++$current_color % $num_colors;
+		}
+		print "<tr class=\"$rev_color[$current_color]\">\n";
+		print "<td class=\"sha1\">" .
+			$cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$full_rev;f=$file_name")}, esc_html($rev)) . "</td>\n";
+		print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" . esc_html($lineno) . "</a></td>\n";
+		print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
+		print "</tr>\n";
+	}
+	print "</table>\n";
+	print "</div>";
+	close $fd or print "Reading blob failed\n";
+	git_footer_html();
+}
+
 sub git_blame {
 	my $fd;
 	die_error('403 Permission denied', "Permission denied.") if (!git_get_project_config_bool ('blame'));
@@ -1235,23 +1375,17 @@ sub git_blame {
 		$hash = git_get_hash_by_path($hash_base, $file_name, "blob")
 			or die_error(undef, "Error lookup file.");
 	}
-	open ($fd, "-|", "$gitbin/git-annotate", '-l', '-t', '-r', $file_name, $hash_base)
-		or die_error(undef, "Open failed.");
+	open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
+		or die_error(undef, "Open git-annotate failed.");
 	git_header_html();
-	print "<div class=\"page_nav\">\n" .
-		$cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-		" | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-		" | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-		" | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
-		" | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
-		" | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") . "<br/>\n";
-	print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, "blob") .
-		" | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;f=$file_name")}, "head") . "<br/>\n";
-	print "</div>\n".
-		"<div>" .
-		$cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
-		"</div>\n";
-	print "<div class=\"page_path\"><b>" . esc_html($file_name) . "</b></div>\n";
+	my $formats_nav =
+		$cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, "blob") .
+		" | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;f=$file_name")}, "head");
+	git_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
+	print "<div>" .
+	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
+	      "</div>\n";
+	git_print_page_path($file_name);
 	print "<div class=\"page_body\">\n";
 	print <<HTML;
 <table class="blame">
@@ -1325,15 +1459,7 @@ HTML
 sub git_tags {
 	my $head = git_read_head($project);
 	git_header_html();
-	print "<div class=\"page_nav\">\n" .
-	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
-	      "<br/>\n" .
-	      "</div>\n";
+	git_page_nav('','', $head,undef,$head);
 	my $taglist = git_read_refs("refs/tags");
 	print "<div>\n" .
 	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
@@ -1361,17 +1487,17 @@ sub git_tags {
 			      "</td>\n" .
 			      "<td>";
 			if (defined($comment)) {
-			      print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, $comment);
+				print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, $comment);
 			}
 			print "</td>\n" .
 			      "<td class=\"link\">";
 			if ($tag{'type'} eq "tag") {
-			      print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
+				print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
 			}
 			print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
 			if ($tag{'reftype'} eq "commit") {
-			      print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
-				    " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
+				print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
+				      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
 			}
 			print "</td>\n" .
 			      "</tr>";
@@ -1384,15 +1510,7 @@ sub git_tags {
 sub git_heads {
 	my $head = git_read_head($project);
 	git_header_html();
-	print "<div class=\"page_nav\">\n" .
-	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
-	      "<br/>\n" .
-	      "</div>\n";
+	git_page_nav('','', $head,undef,$head);
 	my $taglist = git_read_refs("refs/heads");
 	print "<div>\n" .
 	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
@@ -1428,84 +1546,15 @@ sub git_get_hash_by_path {
 	my $path = shift || return undef;
 
 	my $tree = $base;
-	my @parts = split '/', $path;
-	while (my $part = shift @parts) {
-		open my $fd, "-|", "$gitbin/git-ls-tree $tree" or die_error(undef, "Open git-ls-tree failed.");
-		my (@entries) = map { chomp; $_ } <$fd>;
-		close $fd or return undef;
-		foreach my $line (@entries) {
-			#'100644	blob	0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa	panic.c'
-			$line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
-			my $t_mode = $1;
-			my $t_type = $2;
-			my $t_hash = $3;
-			my $t_name = validate_input(unquote($4));
-			if ($t_name eq $part) {
-				if (!(@parts)) {
-					return $t_hash;
-				}
-				if ($t_type eq "tree") {
-					$tree = $t_hash;
-				}
-				last;
-			}
-		}
-	}
-}
 
-sub git_blob {
-	if (!defined $hash && defined $file_name) {
-		my $base = $hash_base || git_read_head($project);
-		$hash = git_get_hash_by_path($base, $file_name, "blob") || die_error(undef, "Error lookup file.");
-	}
-	my $have_blame = git_get_project_config_bool ('blame');
-	open my $fd, "-|", "$gitbin/git-cat-file blob $hash" or die_error(undef, "Open failed.");
-	git_header_html();
-	if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
-		print "<div class=\"page_nav\">\n" .
-		      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-		      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-		      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-		      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
-		      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
-		      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") . "<br/>\n";
-		if (defined $file_name) {
-			if ($have_blame) {
-				print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$hash;hb=$hash_base;f=$file_name")}, "blame") .  " | ";
-			}
-			print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash;f=$file_name")}, "plain") .
-			" | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=HEAD;f=$file_name")}, "head") . "<br/>\n";
-		} else {
-			print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash")}, "plain") . "<br/>\n";
-		}
-		print "</div>\n".
-		       "<div>" .
-		      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
-		      "</div>\n";
-	} else {
-		print "<div class=\"page_nav\">\n" .
-		      "<br/><br/></div>\n" .
-		      "<div class=\"title\">$hash</div>\n";
-	}
-	if (defined $file_name) {
-		print "<div class=\"page_path\"><b>" . esc_html($file_name) . "</b></div>\n";
-	}
-	print "<div class=\"page_body\">\n";
-	my $nr;
-	while (my $line = <$fd>) {
-		chomp $line;
-		$nr++;
-		while ((my $pos = index($line, "\t")) != -1) {
-			if (my $count = (8 - ($pos % 8))) {
-				my $spaces = ' ' x $count;
-				$line =~ s/\t/$spaces/;
-			}
-		}
-		printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
-	}
-	close $fd or print "Reading blob failed.\n";
-	print "</div>";
-	git_footer_html();
+	open my $fd, "-|", $GIT, "ls-tree", $base, "--", $path
+		or die_error(undef, "Open git-ls-tree failed.");
+	my $line = <$fd>;
+	close $fd or return undef;
+
+	#'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa	panic.c'
+	$line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
+	return $3;
 }
 
 sub mimetype_guess_file {
@@ -1546,14 +1595,14 @@ sub git_blob_plain_mimetype {
 	my $fd = shift;
 	my $filename = shift;
 
-	# just in case
-	return $default_blob_plain_mimetype unless $fd;
-
 	if ($filename) {
 		my $mime = mimetype_guess($filename);
 		$mime and return $mime;
 	}
 
+	# just in case
+	return $default_blob_plain_mimetype unless $fd;
+
 	if (-T $fd) {
 		return 'text/plain' .
 		       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
@@ -1571,8 +1620,20 @@ sub git_blob_plain_mimetype {
 }
 
 sub git_blob_plain {
-	open my $fd, "-|", "$gitbin/git-cat-file blob $hash" or return;
-	my $type = git_blob_plain_mimetype($fd, $file_name);
+	if (!defined $hash) {
+		if (defined $file_name) {
+			my $base = $hash_base || git_read_head($project);
+			$hash = git_get_hash_by_path($base, $file_name, "blob")
+				or die_error(undef, "Error lookup file.");
+		} else {
+			die_error(undef, "No file name defined.");
+		}
+	}
+	my $type = shift;
+	open my $fd, "-|", $GIT, "cat-file", "blob", $hash
+		or die_error("Couldn't cat $file_name, $hash");
+
+	$type ||= git_blob_plain_mimetype($fd, $file_name);
 
 	# save as filename, even when no $file_name is given
 	my $save_as = "$hash";
@@ -1591,6 +1652,65 @@ sub git_blob_plain {
 	close $fd;
 }
 
+sub git_blob {
+	if (!defined $hash) {
+		if (defined $file_name) {
+			my $base = $hash_base || git_read_head($project);
+			$hash = git_get_hash_by_path($base, $file_name, "blob")
+				or die_error(undef, "Error lookup file.");
+		} else {
+			die_error(undef, "No file name defined.");
+		}
+	}
+	my $have_blame = git_get_project_config_bool ('blame');
+	open my $fd, "-|", $GIT, "cat-file", "blob", $hash
+		or die_error(undef, "Couldn't cat $file_name, $hash.");
+	my $mimetype = git_blob_plain_mimetype($fd, $file_name);
+	if ($mimetype !~ m/^text\//) {
+		close $fd;
+		return git_blob_plain($mimetype);
+	}
+	git_header_html();
+	my $formats_nav = '';
+	if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
+		if (defined $file_name) {
+			if ($have_blame) {
+				$formats_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$hash;hb=$hash_base;f=$file_name")}, "blame") . " | ";
+			}
+			$formats_nav .=
+				$cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash;f=$file_name")}, "plain") .
+				" | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=HEAD;f=$file_name")}, "head");
+		} else {
+			$formats_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash")}, "plain");
+		}
+		git_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
+		print "<div>" .
+		      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
+		      "</div>\n";
+	} else {
+		print "<div class=\"page_nav\">\n" .
+		      "<br/><br/></div>\n" .
+		      "<div class=\"title\">$hash</div>\n";
+	}
+	git_print_page_path($file_name, "blob");
+	print "<div class=\"page_body\">\n";
+	my $nr;
+	while (my $line = <$fd>) {
+		chomp $line;
+		$nr++;
+		while ((my $pos = index($line, "\t")) != -1) {
+			if (my $count = (8 - ($pos % 8))) {
+				my $spaces = ' ' x $count;
+				$line =~ s/\t/$spaces/;
+			}
+		}
+		printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
+	}
+	close $fd or print "Reading blob failed.\n";
+	print "</div>";
+	git_footer_html();
+}
+
 sub git_tree {
 	if (!defined $hash) {
 		$hash = git_read_head($project);
@@ -1603,8 +1723,9 @@ sub git_tree {
 		}
 	}
 	$/ = "\0";
-	open my $fd, "-|", "$gitbin/git-ls-tree -z $hash" or die_error(undef, "Open git-ls-tree failed.");
-	chomp (my (@entries) = <$fd>);
+	open my $fd, "-|", $GIT, "ls-tree", '-z', $hash
+		or die_error(undef, "Open git-ls-tree failed.");
+	my @entries = map { chomp; $_ } <$fd>;
 	close $fd or die_error(undef, "Reading tree failed.");
 	$/ = "\n";
 
@@ -1618,15 +1739,7 @@ sub git_tree {
 	my $base = "";
 	if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
 		$base_key = ";hb=$hash_base";
-		print "<div class=\"page_nav\">\n" .
-		      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-		      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash_base")}, "shortlog") .
-		      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash_base")}, "log") .
-		      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
-		      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
-		      " | tree" .
-		      "<br/><br/>\n" .
-		      "</div>\n";
+		git_page_nav('tree','', $hash_base);
 		print "<div>\n" .
 		      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
 		      "</div>\n";
@@ -1637,10 +1750,8 @@ sub git_tree {
 	}
 	if (defined $file_name) {
 		$base = esc_html("$file_name/");
-		print "<div class=\"page_path\"><b>/" . esc_html($file_name) . "</b></div>\n";
-	} else {
-		print "<div class=\"page_path\"><b>/</b></div>\n";
 	}
+	git_print_page_path($file_name);
 	print "<div class=\"page_body\">\n";
 	print "<table cellspacing=\"0\">\n";
 	my $alternate = 0;
@@ -1665,7 +1776,8 @@ sub git_tree {
 			      "<td class=\"link\">" .
 			      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name")}, "blob") .
 #			      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$t_hash$base_key;f=$base$t_name")}, "blame") .
-			      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$hash_base;f=$base$t_name")}, "history") .
+			      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$t_hash;hb=$hash_base;f=$base$t_name")}, "history") .
+			      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$t_hash;f=$base$t_name")}, "raw") .
 			      "</td>\n";
 		} elsif ($t_type eq "tree") {
 			print "<td class=\"list\">" .
@@ -1673,6 +1785,7 @@ sub git_tree {
 			      "</td>\n" .
 			      "<td class=\"link\">" .
 			      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, "tree") .
+			      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash_base;f=$base$t_name")}, "history") .
 			      "</td>\n";
 		}
 		print "</tr>\n";
@@ -1684,8 +1797,9 @@ sub git_tree {
 
 sub git_rss {
 	# http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
-	open my $fd, "-|", "$gitbin/git-rev-list --max-count=150 " . git_read_head($project) or die_error(undef, "Open failed.");
-	my (@revlist) = map { chomp; $_ } <$fd>;
+	open my $fd, "-|", $GIT, "rev-list", "--max-count=150", git_read_head($project)
+		or die_error(undef, "Open git-rev-list failed.");
+	my @revlist = map { chomp; $_ } <$fd>;
 	close $fd or die_error(undef, "Reading rev-list failed.");
 	print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
 	print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
@@ -1704,7 +1818,7 @@ sub git_rss {
 			last;
 		}
 		my %cd = date_str($co{'committer_epoch'});
-		open $fd, "-|", "$gitbin/git-diff-tree -r $co{'parent'} $co{'id'}" or next;
+		open $fd, "-|", $GIT, "diff-tree", '-r', $co{'parent'}, $co{'id'} or next;
 		my @difftree = map { chomp; $_ } <$fd>;
 		close $fd or next;
 		print "<item>\n" .
@@ -1746,7 +1860,7 @@ sub git_opml {
 	print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
 	      "<opml version=\"1.0\">\n".
 	      "<head>".
-	      "  <title>Git OPML Export</title>\n".
+	      "  <title>$site_name Git OPML Export</title>\n".
 	      "</head>\n".
 	      "<body>\n".
 	      "<outline text=\"git RSS feeds\">\n";
@@ -1764,8 +1878,8 @@ sub git_opml {
 		}
 
 		my $path = esc_html(chop_str($proj{'path'}, 25, 5));
-		my $rss =  "$my_url?p=$proj{'path'};a=rss";
-		my $html =  "$my_url?p=$proj{'path'};a=summary";
+		my $rss  = "$my_url?p=$proj{'path'};a=rss";
+		my $html = "$my_url?p=$proj{'path'};a=summary";
 		print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
 	}
 	print "</outline>\n".
@@ -1782,39 +1896,18 @@ sub git_log {
 		$page = 0;
 	}
 	my $refs = read_info_ref();
-	git_header_html();
-	print "<div class=\"page_nav\">\n";
-	print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
-	      " | log" .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$hash;hb=$hash")}, "tree") . "<br/>\n";
 
 	my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
-	open my $fd, "-|", "$gitbin/git-rev-list $limit $hash" or die_error(undef, "Open failed.");
-	my (@revlist) = map { chomp; $_ } <$fd>;
+	open my $fd, "-|", $GIT, "rev-list", $limit, $hash
+		or die_error(undef, "Open git-rev-list failed.");
+	my @revlist = map { chomp; $_ } <$fd>;
 	close $fd;
 
-	if ($hash ne $head || $page) {
-		print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "HEAD");
-	} else {
-		print "HEAD";
-	}
-	if ($page > 0) {
-		print " &sdot; " .
-		$cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash;pg=" . ($page-1)), -accesskey => "p", -title => "Alt-p"}, "prev");
-	} else {
-		print " &sdot; prev";
-	}
-	if ($#revlist >= (100 * ($page+1)-1)) {
-		print " &sdot; " .
-		$cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash;pg=" . ($page+1)), -accesskey => "n", -title => "Alt-n"}, "next");
-	} else {
-		print " &sdot; next";
-	}
-	print "<br/>\n" .
-	      "</div>\n";
+	my $paging_nav = git_get_paging_nav('log', $hash, $head, $page, $#revlist);
+
+	git_header_html();
+	git_page_nav('log','', $hash,undef,undef, $paging_nav);
+
 	if (!@revlist) {
 		print "<div>\n" .
 		      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
@@ -1876,16 +1969,14 @@ sub git_commit {
 	my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
 	my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
 
-	my @difftree;
-	my $root = "";
 	my $parent = $co{'parent'};
 	if (!defined $parent) {
-		$root = " --root";
-		$parent = "";
+		$parent = "--root";
 	}
-	open my $fd, "-|", "$gitbin/git-diff-tree -r -M $root $parent $hash" or die_error(undef, "Open failed.");
-	@difftree = map { chomp; $_ } <$fd>;
-	close $fd or die_error(undef, "Reading diff-tree failed.");
+	open my $fd, "-|", $GIT, "diff-tree", '-r', '-M', $parent, $hash
+		or die_error(undef, "Open git-diff-tree failed.");
+	my @difftree = map { chomp; $_ } <$fd>;
+	close $fd or die_error(undef, "Reading git-diff-tree failed.");
 
 	# non-textual hash id's can be cached
 	my $expires;
@@ -1898,16 +1989,15 @@ sub git_commit {
 		$ref = " <span class=\"tag\">" . esc_html($refs->{$co{'id'}}) . "</span>";
 	}
 	git_header_html(undef, $expires);
-	print "<div class=\"page_nav\">\n" .
-	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
-	      " | commit";
-	if (defined $co{'parent'}) {
-		print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff");
+	my $formats_nav = '';
+	if (defined $file_name && defined $co{'parent'}) {
+		my $parent = $co{'parent'};
+		$formats_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;hb=$parent;f=$file_name")}, "blame");
 	}
-	print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") . "\n" .
-	      "<br/><br/></div>\n";
+	git_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
+							 $hash, $co{'tree'}, $hash,
+							 $formats_nav);
+
 	if (defined $co{'parent'}) {
 		print "<div>\n" .
 		      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
@@ -1940,7 +2030,7 @@ sub git_commit {
 	      "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
 	      "</td>" .
 	      "</tr>\n";
-	my $parents  = $co{'parents'};
+	my $parents = $co{'parents'};
 	foreach my $par (@$parents) {
 		print "<tr>" .
 		      "<td>parent</td>" .
@@ -2017,7 +2107,7 @@ sub git_commit {
 			      "<td><span class=\"file_status deleted\">[deleted " . file_type($from_mode). "]</span></td>\n" .
 			      "<td class=\"link\">" .
 			      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, "blob") .
-			      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$hash;f=$file")}, "history") .
+			      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash;f=$file")}, "history") .
 			      "</td>\n"
 		} elsif ($status eq "M" || $status eq "T") {
 			my $mode_chnge = "";
@@ -2048,7 +2138,7 @@ sub git_commit {
 			if ($to_id ne $from_id) {
 				print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file")}, "diff");
 			}
-			print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$hash;f=$file")}, "history") . "\n";
+			print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash;f=$file")}, "history") . "\n";
 			print "</td>\n";
 		} elsif ($status eq "R") {
 			my ($from_file, $to_file) = split "\t", $file;
@@ -2078,16 +2168,9 @@ sub git_blobdiff {
 	mkdir($git_temp, 0700);
 	git_header_html();
 	if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
-		print "<div class=\"page_nav\">\n" .
-		      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-		      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-		      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-		      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
-		      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
-		      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") .
-		      "<br/>\n";
-		print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff_plain;h=$hash;hp=$hash_parent")}, "plain") .
-		      "</div>\n";
+		my $formats_nav =
+			$cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff_plain;h=$hash;hp=$hash_parent")}, "plain");
+		git_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
 		print "<div>\n" .
 		      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) . "\n" .
 		      "</div>\n";
@@ -2096,9 +2179,7 @@ sub git_blobdiff {
 		      "<br/><br/></div>\n" .
 		      "<div class=\"title\">$hash vs $hash_parent</div>\n";
 	}
-	if (defined $file_name) {
-		print "<div class=\"page_path\"><b>/" . esc_html($file_name) . "</b></div>\n";
-	}
+	git_print_page_path($file_name, "blob");
 	print "<div class=\"page_body\">\n" .
 	      "<div class=\"diff_info\">blob:" .
 	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name")}, $hash_parent) .
@@ -2125,8 +2206,9 @@ sub git_commitdiff {
 	if (!defined $hash_parent) {
 		$hash_parent = $co{'parent'};
 	}
-	open my $fd, "-|", "$gitbin/git-diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
-	my (@difftree) = map { chomp; $_ } <$fd>;
+	open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
+		or die_error(undef, "Open git-diff-tree failed.");
+	my @difftree = map { chomp; $_ } <$fd>;
 	close $fd or die_error(undef, "Reading diff-tree failed.");
 
 	# non-textual hash id's can be cached
@@ -2140,15 +2222,9 @@ sub git_commitdiff {
 		$ref = " <span class=\"tag\">" . esc_html($refs->{$co{'id'}}) . "</span>";
 	}
 	git_header_html(undef, $expires);
-	print "<div class=\"page_nav\">\n" .
-	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
-	      " | commitdiff" .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") . "<br/>\n";
-	print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff_plain;h=$hash;hp=$hash_parent")}, "plain") . "\n" .
-	      "</div>\n";
+	my $formats_nav =
+		$cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff_plain;h=$hash;hp=$hash_parent")}, "plain");
+	git_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
 	print "<div>\n" .
 	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
 	      "</div>\n";
@@ -2188,7 +2264,7 @@ sub git_commitdiff {
 		my $status = $5;
 		my $file = validate_input(unquote($6));
 		if ($status eq "A") {
-			print "<div class=\"diff_info\">" .  file_type($to_mode) . ":" .
+			print "<div class=\"diff_info\">" . file_type($to_mode) . ":" .
 			      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id) . "(new)" .
 			      "</div>\n";
 			git_diff_print(undef, "/dev/null", $to_id, "b/$file");
@@ -2215,15 +2291,16 @@ sub git_commitdiff {
 
 sub git_commitdiff_plain {
 	mkdir($git_temp, 0700);
-	open my $fd, "-|", "$gitbin/git-diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
-	my (@difftree) = map { chomp; $_ } <$fd>;
+	open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
+		or die_error(undef, "Open git-diff-tree failed.");
+	my @difftree = map { chomp; $_ } <$fd>;
 	close $fd or die_error(undef, "Reading diff-tree failed.");
 
 	# try to figure out the next tag after this commit
 	my $tagname;
 	my $refs = read_info_ref("tags");
-	open $fd, "-|", "$gitbin/git-rev-list HEAD";
-	chomp (my (@commits) = <$fd>);
+	open $fd, "-|", $GIT, "rev-list", "HEAD";
+	my @commits = map { chomp; $_ } <$fd>;
 	close $fd;
 	foreach my $commit (@commits) {
 		if (defined $refs->{$commit}) {
@@ -2242,7 +2319,7 @@ sub git_commitdiff_plain {
 	      "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
 	      "Subject: $co{'title'}\n";
 	if (defined $tagname) {
-	      print "X-Git-Tag: $tagname\n";
+		print "X-Git-Tag: $tagname\n";
 	}
 	print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
 	      "\n";
@@ -2269,39 +2346,35 @@ sub git_commitdiff_plain {
 }
 
 sub git_history {
-	if (!defined $hash) {
-		$hash = git_read_head($project);
+	if (!defined $hash_base) {
+		$hash_base = git_read_head($project);
 	}
-	my %co = git_read_commit($hash);
+	my $ftype;
+	my %co = git_read_commit($hash_base);
 	if (!%co) {
 		die_error(undef, "Unknown commit object.");
 	}
 	my $refs = read_info_ref();
 	git_header_html();
-	print "<div class=\"page_nav\">\n" .
-	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
-	      "<br/><br/>\n" .
-	      "</div>\n";
+	git_page_nav('','', $hash_base,$co{'tree'},$hash_base);
 	print "<div>\n" .
-	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
+	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) . "\n" .
 	      "</div>\n";
-	print "<div class=\"page_path\"><b>/" . esc_html($file_name) . "</b><br/></div>\n";
+	if (!defined $hash && defined $file_name) {
+		$hash = git_get_hash_by_path($hash_base, $file_name);
+	}
+	if (defined $hash) {
+		$ftype = git_get_type($hash);
+	}
+	git_print_page_path($file_name, $ftype);
 
-	open my $fd, "-|", "$gitbin/git-rev-list $hash | $gitbin/git-diff-tree -r --stdin -- \'$file_name\'";
-	my $commit;
+	open my $fd, "-|",
+		$GIT, "rev-list", "--full-history", $hash_base, "--", "\'$file_name\'";
 	print "<table cellspacing=\"0\">\n";
 	my $alternate = 0;
 	while (my $line = <$fd>) {
 		if ($line =~ m/^([0-9a-fA-F]{40})/){
-			$commit = $1;
-			next;
-		}
-		if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/ && (defined $commit)) {
+			my $commit = $1;
 			my %co = git_read_commit($commit);
 			if (!%co) {
 				next;
@@ -2324,7 +2397,7 @@ sub git_history {
 			      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
 			      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
 			      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=$commit;f=$file_name")}, "blob");
-			my $blob = git_get_hash_by_path($hash, $file_name);
+			my $blob = git_get_hash_by_path($hash_base, $file_name);
 			my $blob_parent = git_get_hash_by_path($commit, $file_name);
 			if (defined $blob && defined $blob_parent && $blob ne $blob_parent) {
 				print " | " .
@@ -2333,7 +2406,6 @@ sub git_history {
 			}
 			print "</td>\n" .
 			      "</tr>\n";
-			undef $commit;
 		}
 	}
 	print "</table>\n";
@@ -2367,15 +2439,7 @@ sub git_search {
 		$pickaxe_search = 1;
 	}
 	git_header_html();
-	print "<div class=\"page_nav\">\n" .
-	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary;h=$hash")}, "summary") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
-	      "<br/><br/>\n" .
-	      "</div>\n";
+	git_page_nav('','', $hash,$co{'tree'},$hash);
 
 	print "<div>\n" .
 	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
@@ -2384,7 +2448,7 @@ sub git_search {
 	my $alternate = 0;
 	if ($commit_search) {
 		$/ = "\0";
-		open my $fd, "-|", "$gitbin/git-rev-list --header --parents $hash" or next;
+		open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash or next;
 		while (my $commit_text = <$fd>) {
 			if (!grep m/$searchtext/i, $commit_text) {
 				next;
@@ -2434,7 +2498,7 @@ sub git_search {
 
 	if ($pickaxe_search) {
 		$/ = "\n";
-		open my $fd, "-|", "$gitbin/git-rev-list $hash | $gitbin/git-diff-tree -r --stdin -S\'$searchtext\'";
+		open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
 		undef %co;
 		my @files;
 		while (my $line = <$fd>) {
@@ -2495,39 +2559,18 @@ sub git_shortlog {
 		$page = 0;
 	}
 	my $refs = read_info_ref();
-	git_header_html();
-	print "<div class=\"page_nav\">\n" .
-	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-	      " | shortlog" .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
-	      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$hash;hb=$hash")}, "tree") . "<br/>\n";
 
 	my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
-	open my $fd, "-|", "$gitbin/git-rev-list $limit $hash" or die_error(undef, "Open failed.");
-	my (@revlist) = map { chomp; $_ } <$fd>;
+	open my $fd, "-|", $GIT, "rev-list", $limit, $hash
+		or die_error(undef, "Open git-rev-list failed.");
+	my @revlist = map { chomp; $_ } <$fd>;
 	close $fd;
 
-	if ($hash ne $head || $page) {
-		print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "HEAD");
-	} else {
-		print "HEAD";
-	}
-	if ($page > 0) {
-		print " &sdot; " .
-		$cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page-1)), -accesskey => "p", -title => "Alt-p"}, "prev");
-	} else {
-		print " &sdot; prev";
-	}
-	if ($#revlist >= (100 * ($page+1)-1)) {
-		print " &sdot; " .
-		$cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)), -accesskey => "n", -title => "Alt-n"}, "next");
-	} else {
-		print " &sdot; next";
-	}
-	print "<br/>\n" .
-	      "</div>\n";
+	my $paging_nav = git_get_paging_nav('shortlog', $hash, $head, $page, $#revlist);
+
+	git_header_html();
+	git_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
+
 	print "<div>\n" .
 	      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
 	      "</div>\n";