renamed
[infrastructure.git] / gitweb / gitweb.cgi
diff --git a/gitweb/gitweb.cgi b/gitweb/gitweb.cgi
deleted file mode 100755 (executable)
index 5a9ebcf..0000000
+++ /dev/null
@@ -1,5771 +0,0 @@
-#!/usr/bin/perl
-
-# gitweb - simple web interface to track changes in git repositories
-#
-# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
-# (C) 2005, Christian Gierke
-#
-# This program is licensed under the GPLv2
-
-use strict;
-use warnings;
-use CGI qw(:standard :escapeHTML -nosticky);
-use CGI::Util qw(unescape);
-use CGI::Carp qw(fatalsToBrowser);
-use Encode;
-use Fcntl ':mode';
-use File::Find qw();
-use File::Basename qw(basename);
-binmode STDOUT, ':utf8';
-
-BEGIN {
-       CGI->compile() if $ENV{'MOD_PERL'};
-}
-
-our $cgi = new CGI;
-our $version = "1.5.5.6";
-our $my_url = $cgi->url();
-our $my_uri = $cgi->url(-absolute => 1);
-
-# 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
-#our $projectroot = "/pub/scm";
-our $projectroot = "/git/";
-
-# fs traversing limit for getting project list
-# the number is relative to the projectroot
-our $project_maxdepth = 2007;
-
-# target of the home link on top of all pages
-our $home_link = $my_uri || "/";
-
-# string of the home link on top of all pages
-our $home_link_str = $ENV{'SERVER_NAME'} ? "git://" . $ENV{'SERVER_NAME'} : "projects";
-
-# name of your site or organization to appear in page titles
-# replace this with something more descriptive for clearer bookmarks
-our $site_name = "@SITENAME@"
-                 || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
-
-# filename of html text to include at top of each page
-our $site_header = "";
-# html text to include at home page
-our $home_text = "indextext.html";
-# filename of html text to include at bottom of each page
-our $site_footer = "";
-
-# URI of stylesheets
-our @stylesheets = ("gitweb.css");
-# URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
-our $stylesheet = undef;
-# URI of GIT logo (72x27 size)
-our $logo = "img/@LOGO@.png";
-# URI of GIT favicon, assumed to be image/png type
-our $favicon = "img/@FAVICON@.png";
-
-# URI and label (title) of GIT logo link
-#our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
-#our $logo_label = "git documentation";
-our $logo_url = "@LOGOURL@";
-our $logo_label = "@LOGOLABEL@";
-
-# source of projects list
-our $projects_list = "";
-
-# the width (in characters) of the projects list "Description" column
-our $projects_list_description_width = 25;
-
-# default order of projects list
-# valid values are none, project, descr, owner, and age
-our $default_projects_order = "project";
-
-# show repository only if this file exists
-# (only effective if this variable evaluates to true)
-our $export_ok = "";
-
-# only allow viewing of repositories also shown on the overview page
-our $strict_export = "";
-
-# list of git base URLs used for URL to where fetch project from,
-# i.e. full URL is "$git_base_url/$project"
-our @git_base_url_list = grep { $_ ne '' } ("");
-
-@git_base_url_list = (
-        "@GITURL@"
-);
-
-
-# default blob_plain mimetype and default charset for text/plain blob
-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)
-our $mimetypes_file = undef;
-
-# assume this charset if line contains non-UTF-8 characters;
-# it should be valid encoding (see Encoding::Supported(3pm) for list),
-# for which encoding all byte sequences are valid, for example
-# 'iso-8859-1' aka 'latin1' (it is decoded without checking, so it
-# could be even 'utf-8' for the old behavior)
-our $fallback_encoding = 'latin1';
-
-# rename detection options for git-diff and git-diff-tree
-# - default is '-M', with the cost proportional to
-#   (number of removed files) * (number of new files).
-# - more costly is '-C' (which implies '-M'), with the cost proportional to
-#   (number of changed files + number of removed files) * (number of new files)
-# - even more costly is '-C', '--find-copies-harder' with cost
-#   (number of files in the original tree) * (number of new files)
-# - one might want to include '-B' option, e.g. '-B', '-M'
-our @diff_opts = ('-M'); # taken from git_commit
-
-# information about snapshot formats that gitweb is capable of serving
-our %known_snapshot_formats = (
-       # name => {
-       #       'display' => display name,
-       #       'type' => mime type,
-       #       'suffix' => filename suffix,
-       #       'format' => --format for git-archive,
-       #       'compressor' => [compressor command and arguments]
-       #                       (array reference, optional)}
-       #
-       'tgz' => {
-               'display' => 'tar.gz',
-               'type' => 'application/x-gzip',
-               'suffix' => '.tar.gz',
-               'format' => 'tar',
-               'compressor' => ['gzip']},
-
-       'tbz2' => {
-               'display' => 'tar.bz2',
-               'type' => 'application/x-bzip2',
-               'suffix' => '.tar.bz2',
-               'format' => 'tar',
-               'compressor' => ['bzip2']},
-
-       'zip' => {
-               'display' => 'zip',
-               'type' => 'application/x-zip',
-               'suffix' => '.zip',
-               'format' => 'zip'},
-);
-
-# Aliases so we understand old gitweb.snapshot values in repository
-# configuration.
-our %known_snapshot_format_aliases = (
-       'gzip'  => 'tgz',
-       'bzip2' => 'tbz2',
-
-       # backward compatibility: legacy gitweb config support
-       'x-gzip' => undef, 'gz' => undef,
-       'x-bzip2' => undef, 'bz2' => undef,
-       'x-zip' => undef, '' => undef,
-);
-
-# You define site-wide feature defaults here; override them with
-# $GITWEB_CONFIG as necessary.
-our %feature = (
-       # feature => {
-       #       'sub' => feature-sub (subroutine),
-       #       'override' => allow-override (boolean),
-       #       'default' => [ default options...] (array reference)}
-       #
-       # if feature is overridable (it means that allow-override has true value),
-       # then feature-sub will be called with default options as parameters;
-       # return value of feature-sub indicates if to enable specified feature
-       #
-       # if there is no 'sub' key (no feature-sub), then feature cannot be
-       # overriden
-       #
-       # use gitweb_check_feature(<feature>) to check if <feature> is enabled
-
-       # Enable the 'blame' blob view, showing the last commit that modified
-       # each line in the file. This can be very CPU-intensive.
-
-       # To enable system wide have in $GITWEB_CONFIG
-       # $feature{'blame'}{'default'} = [1];
-       # To have project specific config enable override in $GITWEB_CONFIG
-       # $feature{'blame'}{'override'} = 1;
-       # and in project config gitweb.blame = 0|1;
-       'blame' => {
-               'sub' => \&feature_blame,
-               'override' => 0,
-               'default' => [0]},
-
-       # Enable the 'snapshot' link, providing a compressed archive of any
-       # tree. This can potentially generate high traffic if you have large
-       # project.
-
-       # Value is a list of formats defined in %known_snapshot_formats that
-       # you wish to offer.
-       # To disable system wide have in $GITWEB_CONFIG
-       # $feature{'snapshot'}{'default'} = [];
-       # To have project specific config enable override in $GITWEB_CONFIG
-       # $feature{'snapshot'}{'override'} = 1;
-       # and in project config, a comma-separated list of formats or "none"
-       # to disable.  Example: gitweb.snapshot = tbz2,zip;
-       'snapshot' => {
-               'sub' => \&feature_snapshot,
-               'override' => 0,
-               'default' => ['tgz']},
-
-       # Enable text search, which will list the commits which match author,
-       # committer or commit text to a given string.  Enabled by default.
-       # Project specific override is not supported.
-       'search' => {
-               'override' => 0,
-               'default' => [1]},
-
-       # Enable grep search, which will list the files in currently selected
-       # tree containing the given string. Enabled by default. This can be
-       # potentially CPU-intensive, of course.
-
-       # To enable system wide have in $GITWEB_CONFIG
-       # $feature{'grep'}{'default'} = [1];
-       # To have project specific config enable override in $GITWEB_CONFIG
-       # $feature{'grep'}{'override'} = 1;
-       # and in project config gitweb.grep = 0|1;
-       'grep' => {
-               'override' => 0,
-               'default' => [1]},
-
-       # Enable the pickaxe search, which will list the commits that modified
-       # a given string in a file. This can be practical and quite faster
-       # alternative to 'blame', but still potentially CPU-intensive.
-
-       # To enable system wide have in $GITWEB_CONFIG
-       # $feature{'pickaxe'}{'default'} = [1];
-       # To have project specific config enable override in $GITWEB_CONFIG
-       # $feature{'pickaxe'}{'override'} = 1;
-       # and in project config gitweb.pickaxe = 0|1;
-       'pickaxe' => {
-               'sub' => \&feature_pickaxe,
-               'override' => 0,
-               'default' => [1]},
-
-       # Make gitweb use an alternative format of the URLs which can be
-       # more readable and natural-looking: project name is embedded
-       # directly in the path and the query string contains other
-       # auxiliary information. All gitweb installations recognize
-       # URL in either format; this configures in which formats gitweb
-       # generates links.
-
-       # To enable system wide have in $GITWEB_CONFIG
-       # $feature{'pathinfo'}{'default'} = [1];
-       # Project specific override is not supported.
-
-       # Note that you will need to change the default location of CSS,
-       # favicon, logo and possibly other files to an absolute URL. Also,
-       # if gitweb.cgi serves as your indexfile, you will need to force
-       # $my_uri to contain the script name in your $GITWEB_CONFIG.
-       'pathinfo' => {
-               'override' => 0,
-               'default' => [0]},
-
-       # Make gitweb consider projects in project root subdirectories
-       # to be forks of existing projects. Given project $projname.git,
-       # projects matching $projname/*.git will not be shown in the main
-       # projects list, instead a '+' mark will be added to $projname
-       # there and a 'forks' view will be enabled for the project, listing
-       # all the forks. If project list is taken from a file, forks have
-       # to be listed after the main project.
-
-       # To enable system wide have in $GITWEB_CONFIG
-       # $feature{'forks'}{'default'} = [1];
-       # Project specific override is not supported.
-       'forks' => {
-               'override' => 0,
-               'default' => [0]},
-);
-
-sub gitweb_check_feature {
-       my ($name) = @_;
-       return unless exists $feature{$name};
-       my ($sub, $override, @defaults) = (
-               $feature{$name}{'sub'},
-               $feature{$name}{'override'},
-               @{$feature{$name}{'default'}});
-       if (!$override) { return @defaults; }
-       if (!defined $sub) {
-               warn "feature $name is not overrideable";
-               return @defaults;
-       }
-       return $sub->(@defaults);
-}
-
-sub feature_blame {
-       my ($val) = git_get_project_config('blame', '--bool');
-
-       if ($val eq 'true') {
-               return 1;
-       } elsif ($val eq 'false') {
-               return 0;
-       }
-
-       return $_[0];
-}
-
-sub feature_snapshot {
-       my (@fmts) = @_;
-
-       my ($val) = git_get_project_config('snapshot');
-
-       if ($val) {
-               @fmts = ($val eq 'none' ? () : split /\s*[,\s]\s*/, $val);
-       }
-
-       return @fmts;
-}
-
-sub feature_grep {
-       my ($val) = git_get_project_config('grep', '--bool');
-
-       if ($val eq 'true') {
-               return (1);
-       } elsif ($val eq 'false') {
-               return (0);
-       }
-
-       return ($_[0]);
-}
-
-sub feature_pickaxe {
-       my ($val) = git_get_project_config('pickaxe', '--bool');
-
-       if ($val eq 'true') {
-               return (1);
-       } elsif ($val eq 'false') {
-               return (0);
-       }
-
-       return ($_[0]);
-}
-
-# checking HEAD file with -e is fragile if the repository was
-# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
-# and then pruned.
-sub check_head_link {
-       my ($dir) = @_;
-       my $headfile = "$dir/HEAD";
-       return ((-e $headfile) ||
-               (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
-}
-
-sub check_export_ok {
-       my ($dir) = @_;
-       return (check_head_link($dir) &&
-               (!$export_ok || -e "$dir/$export_ok"));
-}
-
-# process alternate names for backward compatibility
-# filter out unsupported (unknown) snapshot formats
-sub filter_snapshot_fmts {
-       my @fmts = @_;
-
-       @fmts = map {
-               exists $known_snapshot_format_aliases{$_} ?
-                      $known_snapshot_format_aliases{$_} : $_} @fmts;
-       @fmts = grep(exists $known_snapshot_formats{$_}, @fmts);
-
-}
-
-our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "gitweb_config.perl";
-do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
-
-# version of the core git binary
-our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
-
-$projects_list ||= $projectroot;
-
-# ======================================================================
-# input validation and dispatch
-our $action = $cgi->param('a');
-if (defined $action) {
-       if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
-               die_error(undef, "Invalid action parameter");
-       }
-}
-
-# parameters which are pathnames
-our $project = $cgi->param('p');
-if (defined $project) {
-       if (!validate_pathname($project) ||
-           !(-d "$projectroot/$project") ||
-           !check_head_link("$projectroot/$project") ||
-           ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
-           ($strict_export && !project_in_list($project))) {
-               undef $project;
-               die_error(undef, "No such project");
-       }
-}
-
-our $file_name = $cgi->param('f');
-if (defined $file_name) {
-       if (!validate_pathname($file_name)) {
-               die_error(undef, "Invalid file parameter");
-       }
-}
-
-our $file_parent = $cgi->param('fp');
-if (defined $file_parent) {
-       if (!validate_pathname($file_parent)) {
-               die_error(undef, "Invalid file parent parameter");
-       }
-}
-
-# parameters which are refnames
-our $hash = $cgi->param('h');
-if (defined $hash) {
-       if (!validate_refname($hash)) {
-               die_error(undef, "Invalid hash parameter");
-       }
-}
-
-our $hash_parent = $cgi->param('hp');
-if (defined $hash_parent) {
-       if (!validate_refname($hash_parent)) {
-               die_error(undef, "Invalid hash parent parameter");
-       }
-}
-
-our $hash_base = $cgi->param('hb');
-if (defined $hash_base) {
-       if (!validate_refname($hash_base)) {
-               die_error(undef, "Invalid hash base parameter");
-       }
-}
-
-my %allowed_options = (
-       "--no-merges" => [ qw(rss atom log shortlog history) ],
-);
-
-our @extra_options = $cgi->param('opt');
-if (defined @extra_options) {
-       foreach my $opt (@extra_options) {
-               if (not exists $allowed_options{$opt}) {
-                       die_error(undef, "Invalid option parameter");
-               }
-               if (not grep(/^$action$/, @{$allowed_options{$opt}})) {
-                       die_error(undef, "Invalid option parameter for this action");
-               }
-       }
-}
-
-our $hash_parent_base = $cgi->param('hpb');
-if (defined $hash_parent_base) {
-       if (!validate_refname($hash_parent_base)) {
-               die_error(undef, "Invalid hash parent base parameter");
-       }
-}
-
-# other parameters
-our $page = $cgi->param('pg');
-if (defined $page) {
-       if ($page =~ m/[^0-9]/) {
-               die_error(undef, "Invalid page parameter");
-       }
-}
-
-our $searchtype = $cgi->param('st');
-if (defined $searchtype) {
-       if ($searchtype =~ m/[^a-z]/) {
-               die_error(undef, "Invalid searchtype parameter");
-       }
-}
-
-our $search_use_regexp = $cgi->param('sr');
-
-our $searchtext = $cgi->param('s');
-our $search_regexp;
-if (defined $searchtext) {
-       if (length($searchtext) < 2) {
-               die_error(undef, "At least two characters are required for search parameter");
-       }
-       $search_regexp = $search_use_regexp ? $searchtext : quotemeta $searchtext;
-}
-
-# now read PATH_INFO and use it as alternative to parameters
-sub evaluate_path_info {
-       return if defined $project;
-       my $path_info = $ENV{"PATH_INFO"};
-       return if !$path_info;
-       $path_info =~ s,^/+,,;
-       return if !$path_info;
-       # find which part of PATH_INFO is project
-       $project = $path_info;
-       $project =~ s,/+$,,;
-       while ($project && !check_head_link("$projectroot/$project")) {
-               $project =~ s,/*[^/]*$,,;
-       }
-       # validate project
-       $project = validate_pathname($project);
-       if (!$project ||
-           ($export_ok && !-e "$projectroot/$project/$export_ok") ||
-           ($strict_export && !project_in_list($project))) {
-               undef $project;
-               return;
-       }
-       # do not change any parameters if an action is given using the query string
-       return if $action;
-       $path_info =~ s,^\Q$project\E/*,,;
-       my ($refname, $pathname) = split(/:/, $path_info, 2);
-       if (defined $pathname) {
-               # we got "project.git/branch:filename" or "project.git/branch:dir/"
-               # we could use git_get_type(branch:pathname), but it needs $git_dir
-               $pathname =~ s,^/+,,;
-               if (!$pathname || substr($pathname, -1) eq "/") {
-                       $action  ||= "tree";
-                       $pathname =~ s,/$,,;
-               } else {
-                       $action  ||= "blob_plain";
-               }
-               $hash_base ||= validate_refname($refname);
-               $file_name ||= validate_pathname($pathname);
-       } elsif (defined $refname) {
-               # we got "project.git/branch"
-               $action ||= "shortlog";
-               $hash   ||= validate_refname($refname);
-       }
-}
-evaluate_path_info();
-
-# path to the current git repository
-our $git_dir;
-$git_dir = "$projectroot/$project" if $project;
-
-# dispatch
-my %actions = (
-       "blame" => \&git_blame2,
-       "blobdiff" => \&git_blobdiff,
-       "blobdiff_plain" => \&git_blobdiff_plain,
-       "blob" => \&git_blob,
-       "blob_plain" => \&git_blob_plain,
-       "commitdiff" => \&git_commitdiff,
-       "commitdiff_plain" => \&git_commitdiff_plain,
-       "commit" => \&git_commit,
-       "forks" => \&git_forks,
-       "heads" => \&git_heads,
-       "history" => \&git_history,
-       "log" => \&git_log,
-       "rss" => \&git_rss,
-       "atom" => \&git_atom,
-       "search" => \&git_search,
-       "search_help" => \&git_search_help,
-       "shortlog" => \&git_shortlog,
-       "summary" => \&git_summary,
-       "tag" => \&git_tag,
-       "tags" => \&git_tags,
-       "tree" => \&git_tree,
-       "snapshot" => \&git_snapshot,
-       "object" => \&git_object,
-       # those below don't need $project
-       "opml" => \&git_opml,
-       "project_list" => \&git_project_list,
-       "project_index" => \&git_project_index,
-);
-
-if (!defined $action) {
-       if (defined $hash) {
-               $action = git_get_type($hash);
-       } elsif (defined $hash_base && defined $file_name) {
-               $action = git_get_type("$hash_base:$file_name");
-       } elsif (defined $project) {
-               $action = 'summary';
-       } else {
-               $action = 'project_list';
-       }
-}
-if (!defined($actions{$action})) {
-       die_error(undef, "Unknown action");
-}
-if ($action !~ m/^(opml|project_list|project_index)$/ &&
-    !$project) {
-       die_error(undef, "Project needed");
-}
-$actions{$action}->();
-exit;
-
-## ======================================================================
-## action links
-
-sub href(%) {
-       my %params = @_;
-       # default is to use -absolute url() i.e. $my_uri
-       my $href = $params{-full} ? $my_url : $my_uri;
-
-       # XXX: Warning: If you touch this, check the search form for updating,
-       # too.
-
-       my @mapping = (
-               project => "p",
-               action => "a",
-               file_name => "f",
-               file_parent => "fp",
-               hash => "h",
-               hash_parent => "hp",
-               hash_base => "hb",
-               hash_parent_base => "hpb",
-               page => "pg",
-               order => "o",
-               searchtext => "s",
-               searchtype => "st",
-               snapshot_format => "sf",
-               extra_options => "opt",
-               search_use_regexp => "sr",
-       );
-       my %mapping = @mapping;
-
-       $params{'project'} = $project unless exists $params{'project'};
-
-       if ($params{-replay}) {
-               while (my ($name, $symbol) = each %mapping) {
-                       if (!exists $params{$name}) {
-                               # to allow for multivalued params we use arrayref form
-                               $params{$name} = [ $cgi->param($symbol) ];
-                       }
-               }
-       }
-
-       my ($use_pathinfo) = gitweb_check_feature('pathinfo');
-       if ($use_pathinfo) {
-               # use PATH_INFO for project name
-               $href .= "/".esc_url($params{'project'}) if defined $params{'project'};
-               delete $params{'project'};
-
-               # Summary just uses the project path URL
-               if (defined $params{'action'} && $params{'action'} eq 'summary') {
-                       delete $params{'action'};
-               }
-       }
-
-       # now encode the parameters explicitly
-       my @result = ();
-       for (my $i = 0; $i < @mapping; $i += 2) {
-               my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
-               if (defined $params{$name}) {
-                       if (ref($params{$name}) eq "ARRAY") {
-                               foreach my $par (@{$params{$name}}) {
-                                       push @result, $symbol . "=" . esc_param($par);
-                               }
-                       } else {
-                               push @result, $symbol . "=" . esc_param($params{$name});
-                       }
-               }
-       }
-       $href .= "?" . join(';', @result) if scalar @result;
-
-       return $href;
-}
-
-
-## ======================================================================
-## validation, quoting/unquoting and escaping
-
-sub validate_pathname {
-       my $input = shift || return undef;
-
-       # no '.' or '..' as elements of path, i.e. no '.' nor '..'
-       # at the beginning, at the end, and between slashes.
-       # also this catches doubled slashes
-       if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
-               return undef;
-       }
-       # no null characters
-       if ($input =~ m!\0!) {
-               return undef;
-       }
-       return $input;
-}
-
-sub validate_refname {
-       my $input = shift || return undef;
-
-       # textual hashes are O.K.
-       if ($input =~ m/^[0-9a-fA-F]{40}$/) {
-               return $input;
-       }
-       # it must be correct pathname
-       $input = validate_pathname($input)
-               or return undef;
-       # restrictions on ref name according to git-check-ref-format
-       if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
-               return undef;
-       }
-       return $input;
-}
-
-# decode sequences of octets in utf8 into Perl's internal form,
-# which is utf-8 with utf8 flag set if needed.  gitweb writes out
-# in utf-8 thanks to "binmode STDOUT, ':utf8'" at beginning
-sub to_utf8 {
-       my $str = shift;
-       if (utf8::valid($str)) {
-               utf8::decode($str);
-               return $str;
-       } else {
-               return decode($fallback_encoding, $str, Encode::FB_DEFAULT);
-       }
-}
-
-# quote unsafe chars, but keep the slash, even when it's not
-# correct, but quoted slashes look too horrible in bookmarks
-sub esc_param {
-       my $str = shift;
-       $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
-       $str =~ s/\+/%2B/g;
-       $str =~ s/ /\+/g;
-       return $str;
-}
-
-# quote unsafe chars in whole URL, so some charactrs cannot be quoted
-sub esc_url {
-       my $str = shift;
-       $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
-       $str =~ s/\+/%2B/g;
-       $str =~ s/ /\+/g;
-       return $str;
-}
-
-# replace invalid utf8 character with SUBSTITUTION sequence
-sub esc_html ($;%) {
-       my $str = shift;
-       my %opts = @_;
-
-       $str = to_utf8($str);
-       $str = $cgi->escapeHTML($str);
-       if ($opts{'-nbsp'}) {
-               $str =~ s/ /&nbsp;/g;
-       }
-       $str =~ s|([[:cntrl:]])|(($1 ne "\t") ? quot_cec($1) : $1)|eg;
-       return $str;
-}
-
-# quote control characters and escape filename to HTML
-sub esc_path {
-       my $str = shift;
-       my %opts = @_;
-
-       $str = to_utf8($str);
-       $str = $cgi->escapeHTML($str);
-       if ($opts{'-nbsp'}) {
-               $str =~ s/ /&nbsp;/g;
-       }
-       $str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
-       return $str;
-}
-
-# Make control characters "printable", using character escape codes (CEC)
-sub quot_cec {
-       my $cntrl = shift;
-       my %opts = @_;
-       my %es = ( # character escape codes, aka escape sequences
-               "\t" => '\t',   # tab            (HT)
-               "\n" => '\n',   # line feed      (LF)
-               "\r" => '\r',   # carrige return (CR)
-               "\f" => '\f',   # form feed      (FF)
-               "\b" => '\b',   # backspace      (BS)
-               "\a" => '\a',   # alarm (bell)   (BEL)
-               "\e" => '\e',   # escape         (ESC)
-               "\013" => '\v', # vertical tab   (VT)
-               "\000" => '\0', # nul character  (NUL)
-       );
-       my $chr = ( (exists $es{$cntrl})
-                   ? $es{$cntrl}
-                   : sprintf('\%03o', ord($cntrl)) );
-       if ($opts{-nohtml}) {
-               return $chr;
-       } else {
-               return "<span class=\"cntrl\">$chr</span>";
-       }
-}
-
-# Alternatively use unicode control pictures codepoints,
-# Unicode "printable representation" (PR)
-sub quot_upr {
-       my $cntrl = shift;
-       my %opts = @_;
-
-       my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
-       if ($opts{-nohtml}) {
-               return $chr;
-       } else {
-               return "<span class=\"cntrl\">$chr</span>";
-       }
-}
-
-# git may return quoted and escaped filenames
-sub unquote {
-       my $str = shift;
-
-       sub unq {
-               my $seq = shift;
-               my %es = ( # character escape codes, aka escape sequences
-                       't' => "\t",   # tab            (HT, TAB)
-                       'n' => "\n",   # newline        (NL)
-                       'r' => "\r",   # return         (CR)
-                       'f' => "\f",   # form feed      (FF)
-                       'b' => "\b",   # backspace      (BS)
-                       'a' => "\a",   # alarm (bell)   (BEL)
-                       'e' => "\e",   # escape         (ESC)
-                       'v' => "\013", # vertical tab   (VT)
-               );
-
-               if ($seq =~ m/^[0-7]{1,3}$/) {
-                       # octal char sequence
-                       return chr(oct($seq));
-               } elsif (exists $es{$seq}) {
-                       # C escape sequence, aka character escape code
-                       return $es{$seq};
-               }
-               # quoted ordinary character
-               return $seq;
-       }
-
-       if ($str =~ m/^"(.*)"$/) {
-               # needs unquoting
-               $str = $1;
-               $str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
-       }
-       return $str;
-}
-
-# escape tabs (convert tabs to spaces)
-sub untabify {
-       my $line = shift;
-
-       while ((my $pos = index($line, "\t")) != -1) {
-               if (my $count = (8 - ($pos % 8))) {
-                       my $spaces = ' ' x $count;
-                       $line =~ s/\t/$spaces/;
-               }
-       }
-
-       return $line;
-}
-
-sub project_in_list {
-       my $project = shift;
-       my @list = git_get_projects_list();
-       return @list && scalar(grep { $_->{'path'} eq $project } @list);
-}
-
-## ----------------------------------------------------------------------
-## HTML aware string manipulation
-
-# Try to chop given string on a word boundary between position
-# $len and $len+$add_len. If there is no word boundary there,
-# chop at $len+$add_len. Do not chop if chopped part plus ellipsis
-# (marking chopped part) would be longer than given string.
-sub chop_str {
-       my $str = shift;
-       my $len = shift;
-       my $add_len = shift || 10;
-       my $where = shift || 'right'; # 'left' | 'center' | 'right'
-
-       # allow only $len chars, but don't cut a word if it would fit in $add_len
-       # if it doesn't fit, cut it if it's still longer than the dots we would add
-       # remove chopped character entities entirely
-
-       # when chopping in the middle, distribute $len into left and right part
-       # return early if chopping wouldn't make string shorter
-       if ($where eq 'center') {
-               return $str if ($len + 5 >= length($str)); # filler is length 5
-               $len = int($len/2);
-       } else {
-               return $str if ($len + 4 >= length($str)); # filler is length 4
-       }
-
-       # regexps: ending and beginning with word part up to $add_len
-       my $endre = qr/.{$len}\w{0,$add_len}/;
-       my $begre = qr/\w{0,$add_len}.{$len}/;
-
-       if ($where eq 'left') {
-               $str =~ m/^(.*?)($begre)$/;
-               my ($lead, $body) = ($1, $2);
-               if (length($lead) > 4) {
-                       $body =~ s/^[^;]*;// if ($lead =~ m/&[^;]*$/);
-                       $lead = " ...";
-               }
-               return "$lead$body";
-
-       } elsif ($where eq 'center') {
-               $str =~ m/^($endre)(.*)$/;
-               my ($left, $str)  = ($1, $2);
-               $str =~ m/^(.*?)($begre)$/;
-               my ($mid, $right) = ($1, $2);
-               if (length($mid) > 5) {
-                       $left  =~ s/&[^;]*$//;
-                       $right =~ s/^[^;]*;// if ($mid =~ m/&[^;]*$/);
-                       $mid = " ... ";
-               }
-               return "$left$mid$right";
-
-       } else {
-               $str =~ m/^($endre)(.*)$/;
-               my $body = $1;
-               my $tail = $2;
-               if (length($tail) > 4) {
-                       $body =~ s/&[^;]*$//;
-                       $tail = "... ";
-               }
-               return "$body$tail";
-       }
-}
-
-# takes the same arguments as chop_str, but also wraps a <span> around the
-# result with a title attribute if it does get chopped. Additionally, the
-# string is HTML-escaped.
-sub chop_and_escape_str {
-       my ($str) = @_;
-
-       my $chopped = chop_str(@_);
-       if ($chopped eq $str) {
-               return esc_html($chopped);
-       } else {
-               $str =~ s/([[:cntrl:]])/?/g;
-               return $cgi->span({-title=>$str}, esc_html($chopped));
-       }
-}
-
-## ----------------------------------------------------------------------
-## functions returning short strings
-
-# CSS class for given age value (in seconds)
-sub age_class {
-       my $age = shift;
-
-       if (!defined $age) {
-               return "noage";
-       } elsif ($age < 60*60*2) {
-               return "age0";
-       } elsif ($age < 60*60*24*2) {
-               return "age1";
-       } else {
-               return "age2";
-       }
-}
-
-# convert age in seconds to "nn units ago" string
-sub age_string {
-       my $age = shift;
-       my $age_str;
-
-       if ($age > 60*60*24*365*2) {
-               $age_str = (int $age/60/60/24/365);
-               $age_str .= " years ago";
-       } elsif ($age > 60*60*24*(365/12)*2) {
-               $age_str = int $age/60/60/24/(365/12);
-               $age_str .= " months ago";
-       } elsif ($age > 60*60*24*7*2) {
-               $age_str = int $age/60/60/24/7;
-               $age_str .= " weeks ago";
-       } elsif ($age > 60*60*24*2) {
-               $age_str = int $age/60/60/24;
-               $age_str .= " days ago";
-       } elsif ($age > 60*60*2) {
-               $age_str = int $age/60/60;
-               $age_str .= " hours ago";
-       } elsif ($age > 60*2) {
-               $age_str = int $age/60;
-               $age_str .= " min ago";
-       } elsif ($age > 2) {
-               $age_str = int $age;
-               $age_str .= " sec ago";
-       } else {
-               $age_str .= " right now";
-       }
-       return $age_str;
-}
-
-use constant {
-       S_IFINVALID => 0030000,
-       S_IFGITLINK => 0160000,
-};
-
-# submodule/subproject, a commit object reference
-sub S_ISGITLINK($) {
-       my $mode = shift;
-
-       return (($mode & S_IFMT) == S_IFGITLINK)
-}
-
-# convert file mode in octal to symbolic file mode string
-sub mode_str {
-       my $mode = oct shift;
-
-       if (S_ISGITLINK($mode)) {
-               return 'm---------';
-       } elsif (S_ISDIR($mode & S_IFMT)) {
-               return 'drwxr-xr-x';
-       } elsif (S_ISLNK($mode)) {
-               return 'lrwxrwxrwx';
-       } elsif (S_ISREG($mode)) {
-               # git cares only about the executable bit
-               if ($mode & S_IXUSR) {
-                       return '-rwxr-xr-x';
-               } else {
-                       return '-rw-r--r--';
-               };
-       } else {
-               return '----------';
-       }
-}
-
-# convert file mode in octal to file type string
-sub file_type {
-       my $mode = shift;
-
-       if ($mode !~ m/^[0-7]+$/) {
-               return $mode;
-       } else {
-               $mode = oct $mode;
-       }
-
-       if (S_ISGITLINK($mode)) {
-               return "submodule";
-       } elsif (S_ISDIR($mode & S_IFMT)) {
-               return "directory";
-       } elsif (S_ISLNK($mode)) {
-               return "symlink";
-       } elsif (S_ISREG($mode)) {
-               return "file";
-       } else {
-               return "unknown";
-       }
-}
-
-# convert file mode in octal to file type description string
-sub file_type_long {
-       my $mode = shift;
-
-       if ($mode !~ m/^[0-7]+$/) {
-               return $mode;
-       } else {
-               $mode = oct $mode;
-       }
-
-       if (S_ISGITLINK($mode)) {
-               return "submodule";
-       } elsif (S_ISDIR($mode & S_IFMT)) {
-               return "directory";
-       } elsif (S_ISLNK($mode)) {
-               return "symlink";
-       } elsif (S_ISREG($mode)) {
-               if ($mode & S_IXUSR) {
-                       return "executable";
-               } else {
-                       return "file";
-               };
-       } else {
-               return "unknown";
-       }
-}
-
-
-## ----------------------------------------------------------------------
-## functions returning short HTML fragments, or transforming HTML fragments
-## which don't belong to other sections
-
-# format line of commit message.
-sub format_log_line_html {
-       my $line = shift;
-
-       $line = esc_html($line, -nbsp=>1);
-       if ($line =~ m/([0-9a-fA-F]{8,40})/) {
-               my $hash_text = $1;
-               my $link =
-                       $cgi->a({-href => href(action=>"object", hash=>$hash_text),
-                               -class => "text"}, $hash_text);
-               $line =~ s/$hash_text/$link/;
-       }
-       return $line;
-}
-
-# format marker of refs pointing to given object
-sub format_ref_marker {
-       my ($refs, $id) = @_;
-       my $markers = '';
-
-       if (defined $refs->{$id}) {
-               foreach my $ref (@{$refs->{$id}}) {
-                       my ($type, $name) = qw();
-                       # e.g. tags/v2.6.11 or heads/next
-                       if ($ref =~ m!^(.*?)s?/(.*)$!) {
-                               $type = $1;
-                               $name = $2;
-                       } else {
-                               $type = "ref";
-                               $name = $ref;
-                       }
-
-                       $markers .= " <span class=\"$type\" title=\"$ref\">" .
-                                   esc_html($name) . "</span>";
-               }
-       }
-
-       if ($markers) {
-               return ' <span class="refs">'. $markers . '</span>';
-       } else {
-               return "";
-       }
-}
-
-# format, perhaps shortened and with markers, title line
-sub format_subject_html {
-       my ($long, $short, $href, $extra) = @_;
-       $extra = '' unless defined($extra);
-
-       if (length($short) < length($long)) {
-               return $cgi->a({-href => $href, -class => "list subject",
-                               -title => to_utf8($long)},
-                      esc_html($short) . $extra);
-       } else {
-               return $cgi->a({-href => $href, -class => "list subject"},
-                      esc_html($long)  . $extra);
-       }
-}
-
-# format git diff header line, i.e. "diff --(git|combined|cc) ..."
-sub format_git_diff_header_line {
-       my $line = shift;
-       my $diffinfo = shift;
-       my ($from, $to) = @_;
-
-       if ($diffinfo->{'nparents'}) {
-               # combined diff
-               $line =~ s!^(diff (.*?) )"?.*$!$1!;
-               if ($to->{'href'}) {
-                       $line .= $cgi->a({-href => $to->{'href'}, -class => "path"},
-                                        esc_path($to->{'file'}));
-               } else { # file was deleted (no href)
-                       $line .= esc_path($to->{'file'});
-               }
-       } else {
-               # "ordinary" diff
-               $line =~ s!^(diff (.*?) )"?a/.*$!$1!;
-               if ($from->{'href'}) {
-                       $line .= $cgi->a({-href => $from->{'href'}, -class => "path"},
-                                        'a/' . esc_path($from->{'file'}));
-               } else { # file was added (no href)
-                       $line .= 'a/' . esc_path($from->{'file'});
-               }
-               $line .= ' ';
-               if ($to->{'href'}) {
-                       $line .= $cgi->a({-href => $to->{'href'}, -class => "path"},
-                                        'b/' . esc_path($to->{'file'}));
-               } else { # file was deleted
-                       $line .= 'b/' . esc_path($to->{'file'});
-               }
-       }
-
-       return "<div class=\"diff header\">$line</div>\n";
-}
-
-# format extended diff header line, before patch itself
-sub format_extended_diff_header_line {
-       my $line = shift;
-       my $diffinfo = shift;
-       my ($from, $to) = @_;
-
-       # match <path>
-       if ($line =~ s!^((copy|rename) from ).*$!$1! && $from->{'href'}) {
-               $line .= $cgi->a({-href=>$from->{'href'}, -class=>"path"},
-                                      esc_path($from->{'file'}));
-       }
-       if ($line =~ s!^((copy|rename) to ).*$!$1! && $to->{'href'}) {
-               $line .= $cgi->a({-href=>$to->{'href'}, -class=>"path"},
-                                esc_path($to->{'file'}));
-       }
-       # match single <mode>
-       if ($line =~ m/\s(\d{6})$/) {
-               $line .= '<span class="info"> (' .
-                        file_type_long($1) .
-                        ')</span>';
-       }
-       # match <hash>
-       if ($line =~ m/^index [0-9a-fA-F]{40},[0-9a-fA-F]{40}/) {
-               # can match only for combined diff
-               $line = 'index ';
-               for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
-                       if ($from->{'href'}[$i]) {
-                               $line .= $cgi->a({-href=>$from->{'href'}[$i],
-                                                 -class=>"hash"},
-                                                substr($diffinfo->{'from_id'}[$i],0,7));
-                       } else {
-                               $line .= '0' x 7;
-                       }
-                       # separator
-                       $line .= ',' if ($i < $diffinfo->{'nparents'} - 1);
-               }
-               $line .= '..';
-               if ($to->{'href'}) {
-                       $line .= $cgi->a({-href=>$to->{'href'}, -class=>"hash"},
-                                        substr($diffinfo->{'to_id'},0,7));
-               } else {
-                       $line .= '0' x 7;
-               }
-
-       } elsif ($line =~ m/^index [0-9a-fA-F]{40}..[0-9a-fA-F]{40}/) {
-               # can match only for ordinary diff
-               my ($from_link, $to_link);
-               if ($from->{'href'}) {
-                       $from_link = $cgi->a({-href=>$from->{'href'}, -class=>"hash"},
-                                            substr($diffinfo->{'from_id'},0,7));
-               } else {
-                       $from_link = '0' x 7;
-               }
-               if ($to->{'href'}) {
-                       $to_link = $cgi->a({-href=>$to->{'href'}, -class=>"hash"},
-                                          substr($diffinfo->{'to_id'},0,7));
-               } else {
-                       $to_link = '0' x 7;
-               }
-               my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
-               $line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
-       }
-
-       return $line . "<br/>\n";
-}
-
-# format from-file/to-file diff header
-sub format_diff_from_to_header {
-       my ($from_line, $to_line, $diffinfo, $from, $to, @parents) = @_;
-       my $line;
-       my $result = '';
-
-       $line = $from_line;
-       #assert($line =~ m/^---/) if DEBUG;
-       # no extra formatting for "^--- /dev/null"
-       if (! $diffinfo->{'nparents'}) {
-               # ordinary (single parent) diff
-               if ($line =~ m!^--- "?a/!) {
-                       if ($from->{'href'}) {
-                               $line = '--- a/' .
-                                       $cgi->a({-href=>$from->{'href'}, -class=>"path"},
-                                               esc_path($from->{'file'}));
-                       } else {
-                               $line = '--- a/' .
-                                       esc_path($from->{'file'});
-                       }
-               }
-               $result .= qq!<div class="diff from_file">$line</div>\n!;
-
-       } else {
-               # combined diff (merge commit)
-               for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
-                       if ($from->{'href'}[$i]) {
-                               $line = '--- ' .
-                                       $cgi->a({-href=>href(action=>"blobdiff",
-                                                            hash_parent=>$diffinfo->{'from_id'}[$i],
-                                                            hash_parent_base=>$parents[$i],
-                                                            file_parent=>$from->{'file'}[$i],
-                                                            hash=>$diffinfo->{'to_id'},
-                                                            hash_base=>$hash,
-                                                            file_name=>$to->{'file'}),
-                                                -class=>"path",
-                                                -title=>"diff" . ($i+1)},
-                                               $i+1) .
-                                       '/' .
-                                       $cgi->a({-href=>$from->{'href'}[$i], -class=>"path"},
-                                               esc_path($from->{'file'}[$i]));
-                       } else {
-                               $line = '--- /dev/null';
-                       }
-                       $result .= qq!<div class="diff from_file">$line</div>\n!;
-               }
-       }
-
-       $line = $to_line;
-       #assert($line =~ m/^\+\+\+/) if DEBUG;
-       # no extra formatting for "^+++ /dev/null"
-       if ($line =~ m!^\+\+\+ "?b/!) {
-               if ($to->{'href'}) {
-                       $line = '+++ b/' .
-                               $cgi->a({-href=>$to->{'href'}, -class=>"path"},
-                                       esc_path($to->{'file'}));
-               } else {
-                       $line = '+++ b/' .
-                               esc_path($to->{'file'});
-               }
-       }
-       $result .= qq!<div class="diff to_file">$line</div>\n!;
-
-       return $result;
-}
-
-# create note for patch simplified by combined diff
-sub format_diff_cc_simplified {
-       my ($diffinfo, @parents) = @_;
-       my $result = '';
-
-       $result .= "<div class=\"diff header\">" .
-                  "diff --cc ";
-       if (!is_deleted($diffinfo)) {
-               $result .= $cgi->a({-href => href(action=>"blob",
-                                                 hash_base=>$hash,
-                                                 hash=>$diffinfo->{'to_id'},
-                                                 file_name=>$diffinfo->{'to_file'}),
-                                   -class => "path"},
-                                  esc_path($diffinfo->{'to_file'}));
-       } else {
-               $result .= esc_path($diffinfo->{'to_file'});
-       }
-       $result .= "</div>\n" . # class="diff header"
-                  "<div class=\"diff nodifferences\">" .
-                  "Simple merge" .
-                  "</div>\n"; # class="diff nodifferences"
-
-       return $result;
-}
-
-# format patch (diff) line (not to be used for diff headers)
-sub format_diff_line {
-       my $line = shift;
-       my ($from, $to) = @_;
-       my $diff_class = "";
-
-       chomp $line;
-
-       if ($from && $to && ref($from->{'href'}) eq "ARRAY") {
-               # combined diff
-               my $prefix = substr($line, 0, scalar @{$from->{'href'}});
-               if ($line =~ m/^\@{3}/) {
-                       $diff_class = " chunk_header";
-               } elsif ($line =~ m/^\\/) {
-                       $diff_class = " incomplete";
-               } elsif ($prefix =~ tr/+/+/) {
-                       $diff_class = " add";
-               } elsif ($prefix =~ tr/-/-/) {
-                       $diff_class = " rem";
-               }
-       } else {
-               # assume ordinary diff
-               my $char = substr($line, 0, 1);
-               if ($char eq '+') {
-                       $diff_class = " add";
-               } elsif ($char eq '-') {
-                       $diff_class = " rem";
-               } elsif ($char eq '@') {
-                       $diff_class = " chunk_header";
-               } elsif ($char eq "\\") {
-                       $diff_class = " incomplete";
-               }
-       }
-       $line = untabify($line);
-       if ($from && $to && $line =~ m/^\@{2} /) {
-               my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
-                       $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
-
-               $from_lines = 0 unless defined $from_lines;
-               $to_lines   = 0 unless defined $to_lines;
-
-               if ($from->{'href'}) {
-                       $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
-                                            -class=>"list"}, $from_text);
-               }
-               if ($to->{'href'}) {
-                       $to_text   = $cgi->a({-href=>"$to->{'href'}#l$to_start",
-                                            -class=>"list"}, $to_text);
-               }
-               $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
-                       "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
-               return "<div class=\"diff$diff_class\">$line</div>\n";
-       } elsif ($from && $to && $line =~ m/^\@{3}/) {
-               my ($prefix, $ranges, $section) = $line =~ m/^(\@+) (.*?) \@+(.*)$/;
-               my (@from_text, @from_start, @from_nlines, $to_text, $to_start, $to_nlines);
-
-               @from_text = split(' ', $ranges);
-               for (my $i = 0; $i < @from_text; ++$i) {
-                       ($from_start[$i], $from_nlines[$i]) =
-                               (split(',', substr($from_text[$i], 1)), 0);
-               }
-
-               $to_text   = pop @from_text;
-               $to_start  = pop @from_start;
-               $to_nlines = pop @from_nlines;
-
-               $line = "<span class=\"chunk_info\">$prefix ";
-               for (my $i = 0; $i < @from_text; ++$i) {
-                       if ($from->{'href'}[$i]) {
-                               $line .= $cgi->a({-href=>"$from->{'href'}[$i]#l$from_start[$i]",
-                                                 -class=>"list"}, $from_text[$i]);
-                       } else {
-                               $line .= $from_text[$i];
-                       }
-                       $line .= " ";
-               }
-               if ($to->{'href'}) {
-                       $line .= $cgi->a({-href=>"$to->{'href'}#l$to_start",
-                                         -class=>"list"}, $to_text);
-               } else {
-                       $line .= $to_text;
-               }
-               $line .= " $prefix</span>" .
-                        "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
-               return "<div class=\"diff$diff_class\">$line</div>\n";
-       }
-       return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
-}
-
-# Generates undef or something like "_snapshot_" or "snapshot (_tbz2_ _zip_)",
-# linked.  Pass the hash of the tree/commit to snapshot.
-sub format_snapshot_links {
-       my ($hash) = @_;
-       my @snapshot_fmts = gitweb_check_feature('snapshot');
-       @snapshot_fmts = filter_snapshot_fmts(@snapshot_fmts);
-       my $num_fmts = @snapshot_fmts;
-       if ($num_fmts > 1) {
-               # A parenthesized list of links bearing format names.
-               # e.g. "snapshot (_tar.gz_ _zip_)"
-               return "snapshot (" . join(' ', map
-                       $cgi->a({
-                               -href => href(
-                                       action=>"snapshot",
-                                       hash=>$hash,
-                                       snapshot_format=>$_
-                               )
-                       }, $known_snapshot_formats{$_}{'display'})
-               , @snapshot_fmts) . ")";
-       } elsif ($num_fmts == 1) {
-               # A single "snapshot" link whose tooltip bears the format name.
-               # i.e. "_snapshot_"
-               my ($fmt) = @snapshot_fmts;
-               return
-                       $cgi->a({
-                               -href => href(
-                                       action=>"snapshot",
-                                       hash=>$hash,
-                                       snapshot_format=>$fmt
-                               ),
-                               -title => "in format: $known_snapshot_formats{$fmt}{'display'}"
-                       }, "tar");
-       } else { # $num_fmts == 0
-               return undef;
-       }
-}
-
-## ----------------------------------------------------------------------
-## git utility subroutines, invoking git commands
-
-# returns path to the core git executable and the --git-dir parameter as list
-sub git_cmd {
-       return $GIT, '--git-dir='.$git_dir;
-}
-
-# quote the given arguments for passing them to the shell
-# quote_command("command", "arg 1", "arg with ' and ! characters")
-# => "'command' 'arg 1' 'arg with '\'' and '\!' characters'"
-# Try to avoid using this function wherever possible.
-sub quote_command {
-       return join(' ',
-                   map( { my $a = $_; $a =~ s/(['!])/'\\$1'/g; "'$a'" } @_ ));
-}
-
-# get HEAD ref of given project as hash
-sub git_get_head_hash {
-       my $project = shift;
-       my $o_git_dir = $git_dir;
-       my $retval = undef;
-       $git_dir = "$projectroot/$project";
-       if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
-               my $head = <$fd>;
-               close $fd;
-               if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
-                       $retval = $1;
-               }
-       }
-       if (defined $o_git_dir) {
-               $git_dir = $o_git_dir;
-       }
-       return $retval;
-}
-
-# get type of given object
-sub git_get_type {
-       my $hash = shift;
-
-       open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
-       my $type = <$fd>;
-       close $fd or return;
-       chomp $type;
-       return $type;
-}
-
-# repository configuration
-our $config_file = '';
-our %config;
-
-# store multiple values for single key as anonymous array reference
-# single values stored directly in the hash, not as [ <value> ]
-sub hash_set_multi {
-       my ($hash, $key, $value) = @_;
-
-       if (!exists $hash->{$key}) {
-               $hash->{$key} = $value;
-       } elsif (!ref $hash->{$key}) {
-               $hash->{$key} = [ $hash->{$key}, $value ];
-       } else {
-               push @{$hash->{$key}}, $value;
-       }
-}
-
-# return hash of git project configuration
-# optionally limited to some section, e.g. 'gitweb'
-sub git_parse_project_config {
-       my $section_regexp = shift;
-       my %config;
-
-       local $/ = "\0";
-
-       open my $fh, "-|", git_cmd(), "config", '-z', '-l',
-               or return;
-
-       while (my $keyval = <$fh>) {
-               chomp $keyval;
-               my ($key, $value) = split(/\n/, $keyval, 2);
-
-               hash_set_multi(\%config, $key, $value)
-                       if (!defined $section_regexp || $key =~ /^(?:$section_regexp)\./o);
-       }
-       close $fh;
-
-       return %config;
-}
-
-# convert config value to boolean, 'true' or 'false'
-# no value, number > 0, 'true' and 'yes' values are true
-# rest of values are treated as false (never as error)
-sub config_to_bool {
-       my $val = shift;
-
-       # strip leading and trailing whitespace
-       $val =~ s/^\s+//;
-       $val =~ s/\s+$//;
-
-       return (!defined $val ||               # section.key
-               ($val =~ /^\d+$/ && $val) ||   # section.key = 1
-               ($val =~ /^(?:true|yes)$/i));  # section.key = true
-}
-
-# convert config value to simple decimal number
-# an optional value suffix of 'k', 'm', or 'g' will cause the value
-# to be multiplied by 1024, 1048576, or 1073741824
-sub config_to_int {
-       my $val = shift;
-
-       # strip leading and trailing whitespace
-       $val =~ s/^\s+//;
-       $val =~ s/\s+$//;
-
-       if (my ($num, $unit) = ($val =~ /^([0-9]*)([kmg])$/i)) {
-               $unit = lc($unit);
-               # unknown unit is treated as 1
-               return $num * ($unit eq 'g' ? 1073741824 :
-                              $unit eq 'm' ?    1048576 :
-                              $unit eq 'k' ?       1024 : 1);
-       }
-       return $val;
-}
-
-# convert config value to array reference, if needed
-sub config_to_multi {
-       my $val = shift;
-
-       return ref($val) ? $val : (defined($val) ? [ $val ] : []);
-}
-
-sub git_get_project_config {
-       my ($key, $type) = @_;
-
-       # key sanity check
-       return unless ($key);
-       $key =~ s/^gitweb\.//;
-       return if ($key =~ m/\W/);
-
-       # type sanity check
-       if (defined $type) {
-               $type =~ s/^--//;
-               $type = undef
-                       unless ($type eq 'bool' || $type eq 'int');
-       }
-
-       # get config
-       if (!defined $config_file ||
-           $config_file ne "$git_dir/config") {
-               %config = git_parse_project_config('gitweb');
-               $config_file = "$git_dir/config";
-       }
-
-       # ensure given type
-       if (!defined $type) {
-               return $config{"gitweb.$key"};
-       } elsif ($type eq 'bool') {
-               # backward compatibility: 'git config --bool' returns true/false
-               return config_to_bool($config{"gitweb.$key"}) ? 'true' : 'false';
-       } elsif ($type eq 'int') {
-               return config_to_int($config{"gitweb.$key"});
-       }
-       return $config{"gitweb.$key"};
-}
-
-# get hash of given path at given ref
-sub git_get_hash_by_path {
-       my $base = shift;
-       my $path = shift || return undef;
-       my $type = shift;
-
-       $path =~ s,/+$,,;
-
-       open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
-               or die_error(undef, "Open git-ls-tree failed");
-       my $line = <$fd>;
-       close $fd or return undef;
-
-       if (!defined $line) {
-               # there is no tree or hash given by $path at $base
-               return undef;
-       }
-
-       #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
-       $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
-       if (defined $type && $type ne $2) {
-               # type doesn't match
-               return undef;
-       }
-       return $3;
-}
-
-# get path of entry with given hash at given tree-ish (ref)
-# used to get 'from' filename for combined diff (merge commit) for renames
-sub git_get_path_by_hash {
-       my $base = shift || return;
-       my $hash = shift || return;
-
-       local $/ = "\0";
-
-       open my $fd, "-|", git_cmd(), "ls-tree", '-r', '-t', '-z', $base
-               or return undef;
-       while (my $line = <$fd>) {
-               chomp $line;
-
-               #'040000 tree 595596a6a9117ddba9fe379b6b012b558bac8423  gitweb'
-               #'100644 blob e02e90f0429be0d2a69b76571101f20b8f75530f  gitweb/README'
-               if ($line =~ m/(?:[0-9]+) (?:.+) $hash\t(.+)$/) {
-                       close $fd;
-                       return $1;
-               }
-       }
-       close $fd;
-       return undef;
-}
-
-## ......................................................................
-## git utility functions, directly accessing git repository
-
-sub git_get_project_description {
-       my $path = shift;
-
-       $git_dir = "$projectroot/$path";
-       open my $fd, "$git_dir/description"
-               or return git_get_project_config('description');
-       my $descr = <$fd>;
-       close $fd;
-       if (defined $descr) {
-               chomp $descr;
-       }
-       return $descr;
-}
-
-sub git_get_project_url_list {
-       my $path = shift;
-
-       $git_dir = "$projectroot/$path";
-       open my $fd, "$git_dir/cloneurl"
-               or return wantarray ?
-               @{ config_to_multi(git_get_project_config('url')) } :
-                  config_to_multi(git_get_project_config('url'));
-       my @git_project_url_list = map { chomp; $_ } <$fd>;
-       close $fd;
-
-       return wantarray ? @git_project_url_list : \@git_project_url_list;
-}
-
-sub git_get_projects_list {
-       my ($filter) = @_;
-       my @list;
-
-       $filter ||= '';
-       $filter =~ s/\.git$//;
-
-       my ($check_forks) = gitweb_check_feature('forks');
-
-       if (-d $projects_list) {
-               # search in directory
-               my $dir = $projects_list . ($filter ? "/$filter" : '');
-               # remove the trailing "/"
-               $dir =~ s!/+$!!;
-               my $pfxlen = length("$dir");
-               my $pfxdepth = ($dir =~ tr!/!!);
-
-               File::Find::find({
-                       follow_fast => 1, # follow symbolic links
-                       follow_skip => 2, # ignore duplicates
-                       dangling_symlinks => 0, # ignore dangling symlinks, silently
-                       wanted => sub {
-                               # skip project-list toplevel, if we get it.
-                               return if (m!^[/.]$!);
-                               # only directories can be git repositories
-                               return unless (-d $_);
-                               # don't traverse too deep (Find is super slow on os x)
-                               if (($File::Find::name =~ tr!/!!) - $pfxdepth > $project_maxdepth) {
-                                       $File::Find::prune = 1;
-                                       return;
-                               }
-
-                               my $subdir = substr($File::Find::name, $pfxlen + 1);
-                               # we check related file in $projectroot
-                               if ($check_forks and $subdir =~ m#/.#) {
-                                       $File::Find::prune = 1;
-                               } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
-                                       push @list, { path => ($filter ? "$filter/" : '') . $subdir };
-                                       $File::Find::prune = 1;
-                               }
-                       },
-               }, "$dir");
-
-       } elsif (-f $projects_list) {
-               # read from file(url-encoded):
-               # 'git%2Fgit.git Linus+Torvalds'
-               # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
-               # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
-               my %paths;
-               open my ($fd), $projects_list or return;
-       PROJECT:
-               while (my $line = <$fd>) {
-                       chomp $line;
-                       my ($path, $owner) = split ' ', $line;
-                       $path = unescape($path);
-                       $owner = unescape($owner);
-                       if (!defined $path) {
-                               next;
-                       }
-                       if ($filter ne '') {
-                               # looking for forks;
-                               my $pfx = substr($path, 0, length($filter));
-                               if ($pfx ne $filter) {
-                                       next PROJECT;
-                               }
-                               my $sfx = substr($path, length($filter));
-                               if ($sfx !~ /^\/.*\.git$/) {
-                                       next PROJECT;
-                               }
-                       } elsif ($check_forks) {
-                       PATH:
-                               foreach my $filter (keys %paths) {
-                                       # looking for forks;
-                                       my $pfx = substr($path, 0, length($filter));
-                                       if ($pfx ne $filter) {
-                                               next PATH;
-                                       }
-                                       my $sfx = substr($path, length($filter));
-                                       if ($sfx !~ /^\/.*\.git$/) {
-                                               next PATH;
-                                       }
-                                       # is a fork, don't include it in
-                                       # the list
-                                       next PROJECT;
-                               }
-                       }
-                       if (check_export_ok("$projectroot/$path")) {
-                               my $pr = {
-                                       path => $path,
-                                       owner => to_utf8($owner),
-                               };
-                               push @list, $pr;
-                               (my $forks_path = $path) =~ s/\.git$//;
-                               $paths{$forks_path}++;
-                       }
-               }
-               close $fd;
-       }
-       return @list;
-}
-
-our $gitweb_project_owner = undef;
-sub git_get_project_list_from_file {
-
-       return if (defined $gitweb_project_owner);
-
-       $gitweb_project_owner = {};
-       # read from file (url-encoded):
-       # 'git%2Fgit.git Linus+Torvalds'
-       # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
-       # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
-       if (-f $projects_list) {
-               open (my $fd , $projects_list);
-               while (my $line = <$fd>) {
-                       chomp $line;
-                       my ($pr, $ow) = split ' ', $line;
-                       $pr = unescape($pr);
-                       $ow = unescape($ow);
-                       $gitweb_project_owner->{$pr} = to_utf8($ow);
-               }
-               close $fd;
-       }
-}
-
-sub git_get_project_owner {
-       my $project = shift;
-       my $owner;
-
-       return undef unless $project;
-       $git_dir = "$projectroot/$project";
-
-       if (!defined $gitweb_project_owner) {
-               git_get_project_list_from_file();
-       }
-
-       if (exists $gitweb_project_owner->{$project}) {
-               $owner = $gitweb_project_owner->{$project};
-       }
-       if (!defined $owner){
-               $owner = git_get_project_config('owner');
-       }
-       if (!defined $owner) {
-               $owner = get_file_owner("$git_dir");
-       }
-
-       return $owner;
-}
-
-sub git_get_last_activity {
-       my ($path) = @_;
-       my $fd;
-
-       $git_dir = "$projectroot/$path";
-       open($fd, "-|", git_cmd(), 'for-each-ref',
-            '--format=%(committer)',
-            '--sort=-committerdate',
-            '--count=1',
-            'refs/heads') or return;
-       my $most_recent = <$fd>;
-       close $fd or return;
-       if (defined $most_recent &&
-           $most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
-               my $timestamp = $1;
-               my $age = time - $timestamp;
-               return ($age, age_string($age));
-       }
-       return (undef, undef);
-}
-
-sub git_get_references {
-       my $type = shift || "";
-       my %refs;
-       # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
-       # c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
-       open my $fd, "-|", git_cmd(), "show-ref", "--dereference",
-               ($type ? ("--", "refs/$type") : ()) # use -- <pattern> if $type
-               or return;
-
-       while (my $line = <$fd>) {
-               chomp $line;
-               if ($line =~ m!^([0-9a-fA-F]{40})\srefs/($type/?[^^]+)!) {
-                       if (defined $refs{$1}) {
-                               push @{$refs{$1}}, $2;
-                       } else {
-                               $refs{$1} = [ $2 ];
-                       }
-               }
-       }
-       close $fd or return;
-       return \%refs;
-}
-
-sub git_get_rev_name_tags {
-       my $hash = shift || return undef;
-
-       open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
-               or return;
-       my $name_rev = <$fd>;
-       close $fd;
-
-       if ($name_rev =~ m|^$hash tags/(.*)$|) {
-               return $1;
-       } else {
-               # catches also '$hash undefined' output
-               return undef;
-       }
-}
-
-## ----------------------------------------------------------------------
-## parse to hash functions
-
-sub parse_date {
-       my $epoch = shift;
-       my $tz = shift || "-0000";
-
-       my %date;
-       my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
-       my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
-       my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
-       $date{'hour'} = $hour;
-       $date{'minute'} = $min;
-       $date{'mday'} = $mday;
-       $date{'day'} = $days[$wday];
-       $date{'month'} = $months[$mon];
-       $date{'rfc2822'}   = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
-                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
-       $date{'mday-time'} = sprintf "%d %s %02d:%02d",
-                            $mday, $months[$mon], $hour ,$min;
-       $date{'iso-8601'}  = sprintf "%04d-%02d-%02dT%02d:%02d:%02dZ",
-                            1900+$year, 1+$mon, $mday, $hour ,$min, $sec;
-
-       $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
-       my $local = $epoch + ((int $1 + ($2/60)) * 3600);
-       ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
-       $date{'hour_local'} = $hour;
-       $date{'minute_local'} = $min;
-       $date{'tz_local'} = $tz;
-       $date{'iso-tz'} = sprintf("%04d-%02d-%02d %02d:%02d:%02d %s",
-                                 1900+$year, $mon+1, $mday,
-                                 $hour, $min, $sec, $tz);
-       return %date;
-}
-
-sub parse_tag {
-       my $tag_id = shift;
-       my %tag;
-       my @comment;
-
-       open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
-       $tag{'id'} = $tag_id;
-       while (my $line = <$fd>) {
-               chomp $line;
-               if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
-                       $tag{'object'} = $1;
-               } elsif ($line =~ m/^type (.+)$/) {
-                       $tag{'type'} = $1;
-               } elsif ($line =~ m/^tag (.+)$/) {
-                       $tag{'name'} = $1;
-               } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
-                       $tag{'author'} = $1;
-                       $tag{'epoch'} = $2;
-                       $tag{'tz'} = $3;
-               } elsif ($line =~ m/--BEGIN/) {
-                       push @comment, $line;
-                       last;
-               } elsif ($line eq "") {
-                       last;
-               }
-       }
-       push @comment, <$fd>;
-       $tag{'comment'} = \@comment;
-       close $fd or return;
-       if (!defined $tag{'name'}) {
-               return
-       };
-       return %tag
-}
-
-sub parse_commit_text {
-       my ($commit_text, $withparents) = @_;
-       my @commit_lines = split '\n', $commit_text;
-       my %co;
-
-       pop @commit_lines; # Remove '\0'
-
-       if (! @commit_lines) {
-               return;
-       }
-
-       my $header = shift @commit_lines;
-       if ($header !~ m/^[0-9a-fA-F]{40}/) {
-               return;
-       }
-       ($co{'id'}, my @parents) = split ' ', $header;
-       while (my $line = shift @commit_lines) {
-               last if $line eq "\n";
-               if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
-                       $co{'tree'} = $1;
-               } elsif ((!defined $withparents) && ($line =~ m/^parent ([0-9a-fA-F]{40})$/)) {
-                       push @parents, $1;
-               } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
-                       $co{'author'} = $1;
-                       $co{'author_epoch'} = $2;
-                       $co{'author_tz'} = $3;
-                       if ($co{'author'} =~ m/^([^<]+) <([^>]*)>/) {
-                               $co{'author_name'}  = $1;
-                               $co{'author_email'} = $2;
-                       } else {
-                               $co{'author_name'} = $co{'author'};
-                       }
-               } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
-                       $co{'committer'} = $1;
-                       $co{'committer_epoch'} = $2;
-                       $co{'committer_tz'} = $3;
-                       $co{'committer_name'} = $co{'committer'};
-                       if ($co{'committer'} =~ m/^([^<]+) <([^>]*)>/) {
-                               $co{'committer_name'}  = $1;
-                               $co{'committer_email'} = $2;
-                       } else {
-                               $co{'committer_name'} = $co{'committer'};
-                       }
-               }
-       }
-       if (!defined $co{'tree'}) {
-               return;
-       };
-       $co{'parents'} = \@parents;
-       $co{'parent'} = $parents[0];
-
-       foreach my $title (@commit_lines) {
-               $title =~ s/^    //;
-               if ($title ne "") {
-                       $co{'title'} = chop_str($title, 80, 5);
-                       # remove leading stuff of merges to make the interesting part visible
-                       if (length($title) > 50) {
-                               $title =~ s/^Automatic //;
-                               $title =~ s/^merge (of|with) /Merge ... /i;
-                               if (length($title) > 50) {
-                                       $title =~ s/(http|rsync):\/\///;
-                               }
-                               if (length($title) > 50) {
-                                       $title =~ s/(master|www|rsync)\.//;
-                               }
-                               if (length($title) > 50) {
-                                       $title =~ s/kernel.org:?//;
-                               }
-                               if (length($title) > 50) {
-                                       $title =~ s/\/pub\/scm//;
-                               }
-                       }
-                       $co{'title_short'} = chop_str($title, 50, 5);
-                       last;
-               }
-       }
-       if ($co{'title'} eq "") {
-               $co{'title'} = $co{'title_short'} = '(no commit message)';
-       }
-       # remove added spaces
-       foreach my $line (@commit_lines) {
-               $line =~ s/^    //;
-       }
-       $co{'comment'} = \@commit_lines;
-
-       my $age = time - $co{'committer_epoch'};
-       $co{'age'} = $age;
-       $co{'age_string'} = age_string($age);
-       my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
-       if ($age > 60*60*24*7*2) {
-               $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
-               $co{'age_string_age'} = $co{'age_string'};
-       } else {
-               $co{'age_string_date'} = $co{'age_string'};
-               $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
-       }
-       return %co;
-}
-
-sub parse_commit {
-       my ($commit_id) = @_;
-       my %co;
-
-       local $/ = "\0";
-
-       open my $fd, "-|", git_cmd(), "rev-list",
-               "--parents",
-               "--header",
-               "--max-count=1",
-               $commit_id,
-               "--",
-               or die_error(undef, "Open git-rev-list failed");
-       %co = parse_commit_text(<$fd>, 1);
-       close $fd;
-
-       return %co;
-}
-
-sub parse_commits {
-       my ($commit_id, $maxcount, $skip, $filename, @args) = @_;
-       my @cos;
-
-       $maxcount ||= 1;
-       $skip ||= 0;
-
-       local $/ = "\0";
-
-       open my $fd, "-|", git_cmd(), "rev-list",
-               "--header",
-               @args,
-               ("--max-count=" . $maxcount),
-               ("--skip=" . $skip),
-               @extra_options,
-               $commit_id,
-               "--",
-               ($filename ? ($filename) : ())
-               or die_error(undef, "Open git-rev-list failed");
-       while (my $line = <$fd>) {
-               my %co = parse_commit_text($line);
-               push @cos, \%co;
-       }
-       close $fd;
-
-       return wantarray ? @cos : \@cos;
-}
-
-# parse ref from ref_file, given by ref_id, with given type
-sub parse_ref {
-       my $ref_file = shift;
-       my $ref_id = shift;
-       my $type = shift || git_get_type($ref_id);
-       my %ref_item;
-
-       $ref_item{'type'} = $type;
-       $ref_item{'id'} = $ref_id;
-       $ref_item{'epoch'} = 0;
-       $ref_item{'age'} = "unknown";
-       if ($type eq "tag") {
-               my %tag = parse_tag($ref_id);
-               $ref_item{'comment'} = $tag{'comment'};
-               if ($tag{'type'} eq "commit") {
-                       my %co = parse_commit($tag{'object'});
-                       $ref_item{'epoch'} = $co{'committer_epoch'};
-                       $ref_item{'age'} = $co{'age_string'};
-               } elsif (defined($tag{'epoch'})) {
-                       my $age = time - $tag{'epoch'};
-                       $ref_item{'epoch'} = $tag{'epoch'};
-                       $ref_item{'age'} = age_string($age);
-               }
-               $ref_item{'reftype'} = $tag{'type'};
-               $ref_item{'name'} = $tag{'name'};
-               $ref_item{'refid'} = $tag{'object'};
-       } elsif ($type eq "commit"){
-               my %co = parse_commit($ref_id);
-               $ref_item{'reftype'} = "commit";
-               $ref_item{'name'} = $ref_file;
-               $ref_item{'title'} = $co{'title'};
-               $ref_item{'refid'} = $ref_id;
-               $ref_item{'epoch'} = $co{'committer_epoch'};
-               $ref_item{'age'} = $co{'age_string'};
-       } else {
-               $ref_item{'reftype'} = $type;
-               $ref_item{'name'} = $ref_file;
-               $ref_item{'refid'} = $ref_id;
-       }
-
-       return %ref_item;
-}
-
-# parse line of git-diff-tree "raw" output
-sub parse_difftree_raw_line {
-       my $line = shift;
-       my %res;
-
-       # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
-       # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
-       if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
-               $res{'from_mode'} = $1;
-               $res{'to_mode'} = $2;
-               $res{'from_id'} = $3;
-               $res{'to_id'} = $4;
-               $res{'status'} = $5;
-               $res{'similarity'} = $6;
-               if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
-                       ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
-               } else {
-                       $res{'from_file'} = $res{'to_file'} = $res{'file'} = unquote($7);
-               }
-       }
-       # '::100755 100755 100755 60e79ca1b01bc8b057abe17ddab484699a7f5fdb 94067cc5f73388f33722d52ae02f44692bc07490 94067cc5f73388f33722d52ae02f44692bc07490 MR git-gui/git-gui.sh'
-       # combined diff (for merge commit)
-       elsif ($line =~ s/^(::+)((?:[0-7]{6} )+)((?:[0-9a-fA-F]{40} )+)([a-zA-Z]+)\t(.*)$//) {
-               $res{'nparents'}  = length($1);
-               $res{'from_mode'} = [ split(' ', $2) ];
-               $res{'to_mode'} = pop @{$res{'from_mode'}};
-               $res{'from_id'} = [ split(' ', $3) ];
-               $res{'to_id'} = pop @{$res{'from_id'}};
-               $res{'status'} = [ split('', $4) ];
-               $res{'to_file'} = unquote($5);
-       }
-       # 'c512b523472485aef4fff9e57b229d9d243c967f'
-       elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
-               $res{'commit'} = $1;
-       }
-
-       return wantarray ? %res : \%res;
-}
-
-# wrapper: return parsed line of git-diff-tree "raw" output
-# (the argument might be raw line, or parsed info)
-sub parsed_difftree_line {
-       my $line_or_ref = shift;
-
-       if (ref($line_or_ref) eq "HASH") {
-               # pre-parsed (or generated by hand)
-               return $line_or_ref;
-       } else {
-               return parse_difftree_raw_line($line_or_ref);
-       }
-}
-
-# parse line of git-ls-tree output
-sub parse_ls_tree_line ($;%) {
-       my $line = shift;
-       my %opts = @_;
-       my %res;
-
-       #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
-       $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
-
-       $res{'mode'} = $1;
-       $res{'type'} = $2;
-       $res{'hash'} = $3;
-       if ($opts{'-z'}) {
-               $res{'name'} = $4;
-       } else {
-               $res{'name'} = unquote($4);
-       }
-
-       return wantarray ? %res : \%res;
-}
-
-# generates _two_ hashes, references to which are passed as 2 and 3 argument
-sub parse_from_to_diffinfo {
-       my ($diffinfo, $from, $to, @parents) = @_;
-
-       if ($diffinfo->{'nparents'}) {
-               # combined diff
-               $from->{'file'} = [];
-               $from->{'href'} = [];
-               fill_from_file_info($diffinfo, @parents)
-                       unless exists $diffinfo->{'from_file'};
-               for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
-                       $from->{'file'}[$i] =
-                               defined $diffinfo->{'from_file'}[$i] ?
-                                       $diffinfo->{'from_file'}[$i] :
-                                       $diffinfo->{'to_file'};
-                       if ($diffinfo->{'status'}[$i] ne "A") { # not new (added) file
-                               $from->{'href'}[$i] = href(action=>"blob",
-                                                          hash_base=>$parents[$i],
-                                                          hash=>$diffinfo->{'from_id'}[$i],
-                                                          file_name=>$from->{'file'}[$i]);
-                       } else {
-                               $from->{'href'}[$i] = undef;
-                       }
-               }
-       } else {
-               # ordinary (not combined) diff
-               $from->{'file'} = $diffinfo->{'from_file'};
-               if ($diffinfo->{'status'} ne "A") { # not new (added) file
-                       $from->{'href'} = href(action=>"blob", hash_base=>$hash_parent,
-                                              hash=>$diffinfo->{'from_id'},
-                                              file_name=>$from->{'file'});
-               } else {
-                       delete $from->{'href'};
-               }
-       }
-
-       $to->{'file'} = $diffinfo->{'to_file'};
-       if (!is_deleted($diffinfo)) { # file exists in result
-               $to->{'href'} = href(action=>"blob", hash_base=>$hash,
-                                    hash=>$diffinfo->{'to_id'},
-                                    file_name=>$to->{'file'});
-       } else {
-               delete $to->{'href'};
-       }
-}
-
-## ......................................................................
-## parse to array of hashes functions
-
-sub git_get_heads_list {
-       my $limit = shift;
-       my @headslist;
-
-       open my $fd, '-|', git_cmd(), 'for-each-ref',
-               ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
-               '--format=%(objectname) %(refname) %(subject)%00%(committer)',
-               'refs/heads'
-               or return;
-       while (my $line = <$fd>) {
-               my %ref_item;
-
-               chomp $line;
-               my ($refinfo, $committerinfo) = split(/\0/, $line);
-               my ($hash, $name, $title) = split(' ', $refinfo, 3);
-               my ($committer, $epoch, $tz) =
-                       ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
-               $ref_item{'fullname'}  = $name;
-               $name =~ s!^refs/heads/!!;
-
-               $ref_item{'name'}  = $name;
-               $ref_item{'id'}    = $hash;
-               $ref_item{'title'} = $title || '(no commit message)';
-               $ref_item{'epoch'} = $epoch;
-               if ($epoch) {
-                       $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
-               } else {
-                       $ref_item{'age'} = "unknown";
-               }
-
-               push @headslist, \%ref_item;
-       }
-       close $fd;
-
-       return wantarray ? @headslist : \@headslist;
-}
-
-sub git_get_tags_list {
-       my $limit = shift;
-       my @tagslist;
-
-       open my $fd, '-|', git_cmd(), 'for-each-ref',
-               ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
-               '--format=%(objectname) %(objecttype) %(refname) '.
-               '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
-               'refs/tags'
-               or return;
-       while (my $line = <$fd>) {
-               my %ref_item;
-
-               chomp $line;
-               my ($refinfo, $creatorinfo) = split(/\0/, $line);
-               my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
-               my ($creator, $epoch, $tz) =
-                       ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
-               $ref_item{'fullname'} = $name;
-               $name =~ s!^refs/tags/!!;
-
-               $ref_item{'type'} = $type;
-               $ref_item{'id'} = $id;
-               $ref_item{'name'} = $name;
-               if ($type eq "tag") {
-                       $ref_item{'subject'} = $title;
-                       $ref_item{'reftype'} = $reftype;
-                       $ref_item{'refid'}   = $refid;
-               } else {
-                       $ref_item{'reftype'} = $type;
-                       $ref_item{'refid'}   = $id;
-               }
-
-               if ($type eq "tag" || $type eq "commit") {
-                       $ref_item{'epoch'} = $epoch;
-                       if ($epoch) {
-                               $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
-                       } else {
-                               $ref_item{'age'} = "unknown";
-                       }
-               }
-
-               push @tagslist, \%ref_item;
-       }
-       close $fd;
-
-       return wantarray ? @tagslist : \@tagslist;
-}
-
-## ----------------------------------------------------------------------
-## filesystem-related functions
-
-sub get_file_owner {
-       my $path = shift;
-
-       my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
-       my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
-       if (!defined $gcos) {
-               return undef;
-       }
-       my $owner = $gcos;
-       $owner =~ s/[,;].*$//;
-       return to_utf8($owner);
-}
-
-## ......................................................................
-## mimetype related functions
-
-sub mimetype_guess_file {
-       my $filename = shift;
-       my $mimemap = shift;
-       -r $mimemap or return undef;
-
-       my %mimemap;
-       open(MIME, $mimemap) or return undef;
-       while (<MIME>) {
-               next if m/^#/; # skip comments
-               my ($mime, $exts) = split(/\t+/);
-               if (defined $exts) {
-                       my @exts = split(/\s+/, $exts);
-                       foreach my $ext (@exts) {
-                               $mimemap{$ext} = $mime;
-                       }
-               }
-       }
-       close(MIME);
-
-       $filename =~ /\.([^.]*)$/;
-       return $mimemap{$1};
-}
-
-sub mimetype_guess {
-       my $filename = shift;
-       my $mime;
-       $filename =~ /\./ or return undef;
-
-       if ($mimetypes_file) {
-               my $file = $mimetypes_file;
-               if ($file !~ m!^/!) { # if it is relative path
-                       # it is relative to project
-                       $file = "$projectroot/$project/$file";
-               }
-               $mime = mimetype_guess_file($filename, $file);
-       }
-       $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
-       return $mime;
-}
-
-sub blob_mimetype {
-       my $fd = shift;
-       my $filename = shift;
-
-       if ($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 : '');
-       } elsif (! $filename) {
-               return 'application/octet-stream';
-       } elsif ($filename =~ m/\.png$/i) {
-               return 'image/png';
-       } elsif ($filename =~ m/\.gif$/i) {
-               return 'image/gif';
-       } elsif ($filename =~ m/\.jpe?g$/i) {
-               return 'image/jpeg';
-       } else {
-               return 'application/octet-stream';
-       }
-}
-
-## ======================================================================
-## functions printing HTML: header, footer, error page
-
-sub git_header_html {
-       my $status = shift || "200 OK";
-       my $expires = shift;
-
-       my $title = "$site_name";
-       if (defined $project) {
-               $title .= " - " . to_utf8($project);
-               if (defined $action) {
-                       $title .= "/$action";
-                       if (defined $file_name) {
-                               $title .= " - " . esc_path($file_name);
-                               if ($action eq "tree" && $file_name !~ m|/$|) {
-                                       $title .= "/";
-                               }
-                       }
-               }
-       }
-       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 (defined $cgi->http('HTTP_ACCEPT') &&
-           $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
-           $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);
-       my $mod_perl_version = $ENV{'MOD_PERL'} ? " $ENV{'MOD_PERL'}" : '';
-       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">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
-<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
-<!-- git core binaries version $git_version -->
-<head>
-<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
-<meta name="generator" content="gitweb/$version git/$git_version$mod_perl_version"/>
-<meta name="robots" content="index, nofollow"/>
-<title>$title</title>
-EOF
-# print out each stylesheet that exist
-       if (defined $stylesheet) {
-#provides backwards capability for those people who define style sheet in a config file
-               print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
-       } else {
-               foreach my $stylesheet (@stylesheets) {
-                       next unless $stylesheet;
-                       print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
-               }
-       }
-       if (defined $project) {
-               printf('<link rel="alternate" title="%s log RSS feed" '.
-                      'href="%s" type="application/rss+xml" />'."\n",
-                      esc_param($project), href(action=>"rss"));
-               printf('<link rel="alternate" title="%s log RSS feed (no merges)" '.
-                      'href="%s" type="application/rss+xml" />'."\n",
-                      esc_param($project), href(action=>"rss",
-                                                extra_options=>"--no-merges"));
-               printf('<link rel="alternate" title="%s log Atom feed" '.
-                      'href="%s" type="application/atom+xml" />'."\n",
-                      esc_param($project), href(action=>"atom"));
-               printf('<link rel="alternate" title="%s log Atom feed (no merges)" '.
-                      'href="%s" type="application/atom+xml" />'."\n",
-                      esc_param($project), href(action=>"atom",
-                                                extra_options=>"--no-merges"));
-       } else {
-               printf('<link rel="alternate" title="%s projects list" '.
-                      'href="%s" type="text/plain; charset=utf-8"/>'."\n",
-                      $site_name, href(project=>undef, action=>"project_index"));
-               printf('<link rel="alternate" title="%s projects feeds" '.
-                      'href="%s" type="text/x-opml"/>'."\n",
-                      $site_name, href(project=>undef, action=>"opml"));
-       }
-       if (defined $favicon) {
-               print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
-       }
-
-       print "</head>\n" .
-             "<body>\n";
-
-       if (-f $site_header) {
-               open (my $fd, $site_header);
-               print <$fd>;
-               close $fd;
-       }
-
-       print "<div class=\"page_header\">\n" .
-             $cgi->a({-href => esc_url($logo_url),
-                      -title => $logo_label},
-                     qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
-       print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
-       if (defined $project) {
-               print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
-               if (defined $action) {
-                       print " / $action";
-               }
-               print "\n";
-       }
-       print "</div>\n";
-
-       my ($have_search) = gitweb_check_feature('search');
-       if ((defined $project) && ($have_search)) {
-               if (!defined $searchtext) {
-                       $searchtext = "";
-               }
-               my $search_hash;
-               if (defined $hash_base) {
-                       $search_hash = $hash_base;
-               } elsif (defined $hash) {
-                       $search_hash = $hash;
-               } else {
-                       $search_hash = "HEAD";
-               }
-               my $action = $my_uri;
-               my ($use_pathinfo) = gitweb_check_feature('pathinfo');
-               if ($use_pathinfo) {
-                       $action .= "/".esc_url($project);
-               } else {
-                       $cgi->param("p", $project);
-               }
-               $cgi->param("a", "search");
-               $cgi->param("h", $search_hash);
-               print $cgi->startform(-method => "get", -action => $action) .
-                     "<div class=\"search\">\n" .
-                     (!$use_pathinfo && $cgi->hidden(-name => "p") . "\n") .
-                     $cgi->hidden(-name => "a") . "\n" .
-                     $cgi->hidden(-name => "h") . "\n" .
-                     $cgi->popup_menu(-name => 'st', -default => 'commit',
-                                      -values => ['commit', 'grep', 'author', 'committer', 'pickaxe']) .
-                     $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
-                     " search:\n",
-                     $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
-                     "<span title=\"Extended regular expression\">" .
-                     $cgi->checkbox(-name => 'sr', -value => 1, -label => 're',
-                                    -checked => $search_use_regexp) .
-                     "</span>" .
-                     "</div>" .
-                     $cgi->end_form() . "\n";
-       }
-}
-
-sub git_footer_html {
-       print "<div class=\"page_footer\">\n";
-       if (defined $project) {
-               my $descr = git_get_project_description($project);
-               if (defined $descr) {
-                       print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
-               }
-               print $cgi->a({-href => href(action=>"rss"),
-                             -class => "rss_logo"}, "RSS") . " ";
-               print $cgi->a({-href => href(action=>"atom"),
-                             -class => "rss_logo"}, "Atom") . "\n";
-       } else {
-               print $cgi->a({-href => href(project=>undef, action=>"opml"),
-                             -class => "rss_logo"}, "OPML") . " ";
-               print $cgi->a({-href => href(project=>undef, action=>"project_index"),
-                             -class => "rss_logo"}, "TXT") . "\n";
-       }
-       print "</div>\n" ;
-
-       if (-f $site_footer) {
-               open (my $fd, $site_footer);
-               print <$fd>;
-               close $fd;
-       }
-
-       print "</body>\n" .
-             "</html>";
-}
-
-sub die_error {
-       my $status = shift || "403 Forbidden";
-       my $error = shift || "Malformed query, file missing or permission denied";
-
-       git_header_html($status);
-       print <<EOF;
-<div class="page_body">
-<br /><br />
-$status - $error
-<br />
-</div>
-EOF
-       git_footer_html();
-       exit;
-}
-
-## ----------------------------------------------------------------------
-## functions printing or outputting HTML: navigation
-
-sub git_print_page_nav {
-       my ($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 { $_ => {action=>$_} } @navs;
-       if (defined $head) {
-               for (qw(commit commitdiff)) {
-                       $arg{$_}{'hash'} = $head;
-               }
-               if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
-                       for (qw(shortlog log)) {
-                               $arg{$_}{'hash'} = $head;
-                       }
-               }
-       }
-       $arg{'tree'}{'hash'} = $treehead if defined $treehead;
-       $arg{'tree'}{'hash_base'} = $treebase if defined $treebase;
-
-       print "<div class=\"page_nav\">\n" .
-               (join " | ",
-                map { $_ eq $current ?
-                      $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
-                } @navs);
-       print "<br/>\n$extra<br/>\n" .
-             "</div>\n";
-}
-
-sub format_paging_nav {
-       my ($action, $hash, $head, $page, $has_next_link) = @_;
-       my $paging_nav;
-
-
-       if ($hash ne $head || $page) {
-               $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
-       } else {
-               $paging_nav .= "HEAD";
-       }
-
-       if ($page > 0) {
-               $paging_nav .= " &sdot; " .
-                       $cgi->a({-href => href(-replay=>1, page=>$page-1),
-                                -accesskey => "p", -title => "Alt-p"}, "prev");
-       } else {
-               $paging_nav .= " &sdot; prev";
-       }
-
-       if ($has_next_link) {
-               $paging_nav .= " &sdot; " .
-                       $cgi->a({-href => href(-replay=>1, page=>$page+1),
-                                -accesskey => "n", -title => "Alt-n"}, "next");
-       } else {
-               $paging_nav .= " &sdot; next";
-       }
-
-       return $paging_nav;
-}
-
-## ......................................................................
-## functions printing or outputting HTML: div
-
-sub git_print_header_div {
-       my ($action, $title, $hash, $hash_base) = @_;
-       my %args = ();
-
-       $args{'action'} = $action;
-       $args{'hash'} = $hash if $hash;
-       $args{'hash_base'} = $hash_base if $hash_base;
-
-       print "<div class=\"header\">\n" .
-             $cgi->a({-href => href(%args), -class => "title"},
-             $title ? $title : $action) .
-             "\n</div>\n";
-}
-
-#sub git_print_authorship (\%) {
-sub git_print_authorship {
-       my $co = shift;
-
-       my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
-       print "<div class=\"author_date\">" .
-             esc_html($co->{'author_name'}) .
-             " [$ad{'rfc2822'}";
-       if ($ad{'hour_local'} < 6) {
-               printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
-                      $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
-       } else {
-               printf(" (%02d:%02d %s)",
-                      $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
-       }
-       print "]</div>\n";
-}
-
-sub git_print_page_path {
-       my $name = shift;
-       my $type = shift;
-       my $hb = shift;
-
-
-       print "<div class=\"page_path\">";
-       print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
-                     -title => 'tree root'}, to_utf8("[$project]"));
-       print " / ";
-       if (defined $name) {
-               my @dirname = split '/', $name;
-               my $basename = pop @dirname;
-               my $fullname = '';
-
-               foreach my $dir (@dirname) {
-                       $fullname .= ($fullname ? '/' : '') . $dir;
-                       print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
-                                                    hash_base=>$hb),
-                                     -title => $fullname}, esc_path($dir));
-                       print " / ";
-               }
-               if (defined $type && $type eq 'blob') {
-                       print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
-                                                    hash_base=>$hb),
-                                     -title => $name}, esc_path($basename));
-               } elsif (defined $type && $type eq 'tree') {
-                       print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
-                                                    hash_base=>$hb),
-                                     -title => $name}, esc_path($basename));
-                       print " / ";
-               } else {
-                       print esc_path($basename);
-               }
-       }
-       print "<br/></div>\n";
-}
-
-# sub git_print_log (\@;%) {
-sub git_print_log ($;%) {
-       my $log = shift;
-       my %opts = @_;
-
-       if ($opts{'-remove_title'}) {
-               # remove title, i.e. first line of log
-               shift @$log;
-       }
-       # remove leading empty lines
-       while (defined $log->[0] && $log->[0] eq "") {
-               shift @$log;
-       }
-
-       # print log
-       my $signoff = 0;
-       my $empty = 0;
-       foreach my $line (@$log) {
-               if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
-                       $signoff = 1;
-                       $empty = 0;
-                       if (! $opts{'-remove_signoff'}) {
-                               print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
-                               next;
-                       } else {
-                               # remove signoff lines
-                               next;
-                       }
-               } else {
-                       $signoff = 0;
-               }
-
-               # print only one empty line
-               # do not print empty line after signoff
-               if ($line eq "") {
-                       next if ($empty || $signoff);
-                       $empty = 1;
-               } else {
-                       $empty = 0;
-               }
-
-               print format_log_line_html($line) . "<br/>\n";
-       }
-
-       if ($opts{'-final_empty_line'}) {
-               # end with single empty line
-               print "<br/>\n" unless $empty;
-       }
-}
-
-# return link target (what link points to)
-sub git_get_link_target {
-       my $hash = shift;
-       my $link_target;
-
-       # read link
-       open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
-               or return;
-       {
-               local $/;
-               $link_target = <$fd>;
-       }
-       close $fd
-               or return;
-
-       return $link_target;
-}
-
-# given link target, and the directory (basedir) the link is in,
-# return target of link relative to top directory (top tree);
-# return undef if it is not possible (including absolute links).
-sub normalize_link_target {
-       my ($link_target, $basedir, $hash_base) = @_;
-
-       # we can normalize symlink target only if $hash_base is provided
-       return unless $hash_base;
-
-       # absolute symlinks (beginning with '/') cannot be normalized
-       return if (substr($link_target, 0, 1) eq '/');
-
-       # normalize link target to path from top (root) tree (dir)
-       my $path;
-       if ($basedir) {
-               $path = $basedir . '/' . $link_target;
-       } else {
-               # we are in top (root) tree (dir)
-               $path = $link_target;
-       }
-
-       # remove //, /./, and /../
-       my @path_parts;
-       foreach my $part (split('/', $path)) {
-               # discard '.' and ''
-               next if (!$part || $part eq '.');
-               # handle '..'
-               if ($part eq '..') {
-                       if (@path_parts) {
-                               pop @path_parts;
-                       } else {
-                               # link leads outside repository (outside top dir)
-                               return;
-                       }
-               } else {
-                       push @path_parts, $part;
-               }
-       }
-       $path = join('/', @path_parts);
-
-       return $path;
-}
-
-# print tree entry (row of git_tree), but without encompassing <tr> element
-sub git_print_tree_entry {
-       my ($t, $basedir, $hash_base, $have_blame) = @_;
-
-       my %base_key = ();
-       $base_key{'hash_base'} = $hash_base if defined $hash_base;
-
-       # The format of a table row is: mode list link.  Where mode is
-       # the mode of the entry, list is the name of the entry, an href,
-       # and link is the action links of the entry.
-
-       print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
-       if ($t->{'type'} eq "blob") {
-               print "<td class=\"list\">" .
-                       $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
-                                              file_name=>"$basedir$t->{'name'}", %base_key),
-                               -class => "list"}, esc_path($t->{'name'}));
-               if (S_ISLNK(oct $t->{'mode'})) {
-                       my $link_target = git_get_link_target($t->{'hash'});
-                       if ($link_target) {
-                               my $norm_target = normalize_link_target($link_target, $basedir, $hash_base);
-                               if (defined $norm_target) {
-                                       print " -> " .
-                                             $cgi->a({-href => href(action=>"object", hash_base=>$hash_base,
-                                                                    file_name=>$norm_target),
-                                                      -title => $norm_target}, esc_path($link_target));
-                               } else {
-                                       print " -> " . esc_path($link_target);
-                               }
-                       }
-               }
-               print "</td>\n";
-               print "<td class=\"link\">";
-               print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
-                                            file_name=>"$basedir$t->{'name'}", %base_key)},
-                             "blob");
-               if ($have_blame) {
-                       print " | " .
-                             $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
-                                                    file_name=>"$basedir$t->{'name'}", %base_key)},
-                                     "blame");
-               }
-               if (defined $hash_base) {
-                       print " | " .
-                             $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
-                                                    hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
-                                     "history");
-               }
-               print " | " .
-                       $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
-                                              file_name=>"$basedir$t->{'name'}")},
-                               "raw");
-               print "</td>\n";
-
-       } elsif ($t->{'type'} eq "tree") {
-               print "<td class=\"list\">";
-               print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
-                                            file_name=>"$basedir$t->{'name'}", %base_key)},
-                             esc_path($t->{'name'}));
-               print "</td>\n";
-               print "<td class=\"link\">";
-               print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
-                                            file_name=>"$basedir$t->{'name'}", %base_key)},
-                             "tree");
-               if (defined $hash_base) {
-                       print " | " .
-                             $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
-                                                    file_name=>"$basedir$t->{'name'}")},
-                                     "history");
-               }
-               print "</td>\n";
-       } else {
-               # unknown object: we can only present history for it
-               # (this includes 'commit' object, i.e. submodule support)
-               print "<td class=\"list\">" .
-                     esc_path($t->{'name'}) .
-                     "</td>\n";
-               print "<td class=\"link\">";
-               if (defined $hash_base) {
-                       print $cgi->a({-href => href(action=>"history",
-                                                    hash_base=>$hash_base,
-                                                    file_name=>"$basedir$t->{'name'}")},
-                                     "history");
-               }
-               print "</td>\n";
-       }
-}
-
-## ......................................................................
-## functions printing large fragments of HTML
-
-# get pre-image filenames for merge (combined) diff
-sub fill_from_file_info {
-       my ($diff, @parents) = @_;
-
-       $diff->{'from_file'} = [ ];
-       $diff->{'from_file'}[$diff->{'nparents'} - 1] = undef;
-       for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
-               if ($diff->{'status'}[$i] eq 'R' ||
-                   $diff->{'status'}[$i] eq 'C') {
-                       $diff->{'from_file'}[$i] =
-                               git_get_path_by_hash($parents[$i], $diff->{'from_id'}[$i]);
-               }
-       }
-
-       return $diff;
-}
-
-# is current raw difftree line of file deletion
-sub is_deleted {
-       my $diffinfo = shift;
-
-       return $diffinfo->{'to_id'} eq ('0' x 40);
-}
-
-# does patch correspond to [previous] difftree raw line
-# $diffinfo  - hashref of parsed raw diff format
-# $patchinfo - hashref of parsed patch diff format
-#              (the same keys as in $diffinfo)
-sub is_patch_split {
-       my ($diffinfo, $patchinfo) = @_;
-
-       return defined $diffinfo && defined $patchinfo
-               && $diffinfo->{'to_file'} eq $patchinfo->{'to_file'};
-}
-
-
-sub git_difftree_body {
-       my ($difftree, $hash, @parents) = @_;
-       my ($parent) = $parents[0];
-       my ($have_blame) = gitweb_check_feature('blame');
-       print "<div class=\"list_head\">\n";
-       if ($#{$difftree} > 10) {
-               print(($#{$difftree} + 1) . " files changed:\n");
-       }
-       print "</div>\n";
-
-       print "<table class=\"" .
-             (@parents > 1 ? "combined " : "") .
-             "diff_tree\">\n";
-
-       # header only for combined diff in 'commitdiff' view
-       my $has_header = @$difftree && @parents > 1 && $action eq 'commitdiff';
-       if ($has_header) {
-               # table header
-               print "<thead><tr>\n" .
-                      "<th></th><th></th>\n"; # filename, patchN link
-               for (my $i = 0; $i < @parents; $i++) {
-                       my $par = $parents[$i];
-                       print "<th>" .
-                             $cgi->a({-href => href(action=>"commitdiff",
-                                                    hash=>$hash, hash_parent=>$par),
-                                      -title => 'commitdiff to parent number ' .
-                                                 ($i+1) . ': ' . substr($par,0,7)},
-                                     $i+1) .
-                             "&nbsp;</th>\n";
-               }
-               print "</tr></thead>\n<tbody>\n";
-       }
-
-       my $alternate = 1;
-       my $patchno = 0;
-       foreach my $line (@{$difftree}) {
-               my $diff = parsed_difftree_line($line);
-
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-
-               if (exists $diff->{'nparents'}) { # combined diff
-
-                       fill_from_file_info($diff, @parents)
-                               unless exists $diff->{'from_file'};
-
-                       if (!is_deleted($diff)) {
-                               # file exists in the result (child) commit
-                               print "<td>" .
-                                     $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
-                                                            file_name=>$diff->{'to_file'},
-                                                            hash_base=>$hash),
-                                             -class => "list"}, esc_path($diff->{'to_file'})) .
-                                     "</td>\n";
-                       } else {
-                               print "<td>" .
-                                     esc_path($diff->{'to_file'}) .
-                                     "</td>\n";
-                       }
-
-                       if ($action eq 'commitdiff') {
-                               # link to patch
-                               $patchno++;
-                               print "<td class=\"link\">" .
-                                     $cgi->a({-href => "#patch$patchno"}, "patch") .
-                                     " | " .
-                                     "</td>\n";
-                       }
-
-                       my $has_history = 0;
-                       my $not_deleted = 0;
-                       for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
-                               my $hash_parent = $parents[$i];
-                               my $from_hash = $diff->{'from_id'}[$i];
-                               my $from_path = $diff->{'from_file'}[$i];
-                               my $status = $diff->{'status'}[$i];
-
-                               $has_history ||= ($status ne 'A');
-                               $not_deleted ||= ($status ne 'D');
-
-                               if ($status eq 'A') {
-                                       print "<td  class=\"link\" align=\"right\"> | </td>\n";
-                               } elsif ($status eq 'D') {
-                                       print "<td class=\"link\">" .
-                                             $cgi->a({-href => href(action=>"blob",
-                                                                    hash_base=>$hash,
-                                                                    hash=>$from_hash,
-                                                                    file_name=>$from_path)},
-                                                     "blob" . ($i+1)) .
-                                             " | </td>\n";
-                               } else {
-                                       if ($diff->{'to_id'} eq $from_hash) {
-                                               print "<td class=\"link nochange\">";
-                                       } else {
-                                               print "<td class=\"link\">";
-                                       }
-                                       print $cgi->a({-href => href(action=>"blobdiff",
-                                                                    hash=>$diff->{'to_id'},
-                                                                    hash_parent=>$from_hash,
-                                                                    hash_base=>$hash,
-                                                                    hash_parent_base=>$hash_parent,
-                                                                    file_name=>$diff->{'to_file'},
-                                                                    file_parent=>$from_path)},
-                                                     "diff" . ($i+1)) .
-                                             " | </td>\n";
-                               }
-                       }
-
-                       print "<td class=\"link\">";
-                       if ($not_deleted) {
-                               print $cgi->a({-href => href(action=>"blob",
-                                                            hash=>$diff->{'to_id'},
-                                                            file_name=>$diff->{'to_file'},
-                                                            hash_base=>$hash)},
-                                             "blob");
-                               print " | " if ($has_history);
-                       }
-                       if ($has_history) {
-                               print $cgi->a({-href => href(action=>"history",
-                                                            file_name=>$diff->{'to_file'},
-                                                            hash_base=>$hash)},
-                                             "history");
-                       }
-                       print "</td>\n";
-
-                       print "</tr>\n";
-                       next; # instead of 'else' clause, to avoid extra indent
-               }
-               # else ordinary diff
-
-               my ($to_mode_oct, $to_mode_str, $to_file_type);
-               my ($from_mode_oct, $from_mode_str, $from_file_type);
-               if ($diff->{'to_mode'} ne ('0' x 6)) {
-                       $to_mode_oct = oct $diff->{'to_mode'};
-                       if (S_ISREG($to_mode_oct)) { # only for regular file
-                               $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
-                       }
-                       $to_file_type = file_type($diff->{'to_mode'});
-               }
-               if ($diff->{'from_mode'} ne ('0' x 6)) {
-                       $from_mode_oct = oct $diff->{'from_mode'};
-                       if (S_ISREG($to_mode_oct)) { # only for regular file
-                               $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
-                       }
-                       $from_file_type = file_type($diff->{'from_mode'});
-               }
-
-               if ($diff->{'status'} eq "A") { # created
-                       my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
-                       $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
-                       $mode_chng   .= "]</span>";
-                       print "<td>";
-                       print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
-                                                    hash_base=>$hash, file_name=>$diff->{'file'}),
-                                     -class => "list"}, esc_path($diff->{'file'}));
-                       print "</td>\n";
-                       print "<td>$mode_chng</td>\n";
-                       print "<td class=\"link\">";
-                       if ($action eq 'commitdiff') {
-                               # link to patch
-                               $patchno++;
-                               print $cgi->a({-href => "#patch$patchno"}, "patch");
-                               print " | ";
-                       }
-                       print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
-                                                    hash_base=>$hash, file_name=>$diff->{'file'})},
-                                     "blob");
-                       print "</td>\n";
-
-               } elsif ($diff->{'status'} eq "D") { # deleted
-                       my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
-                       print "<td>";
-                       print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
-                                                    hash_base=>$parent, file_name=>$diff->{'file'}),
-                                      -class => "list"}, esc_path($diff->{'file'}));
-                       print "</td>\n";
-                       print "<td>$mode_chng</td>\n";
-                       print "<td class=\"link\">";
-                       if ($action eq 'commitdiff') {
-                               # link to patch
-                               $patchno++;
-                               print $cgi->a({-href => "#patch$patchno"}, "patch");
-                               print " | ";
-                       }
-                       print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
-                                                    hash_base=>$parent, file_name=>$diff->{'file'})},
-                                     "blob") . " | ";
-                       if ($have_blame) {
-                               print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
-                                                            file_name=>$diff->{'file'})},
-                                             "blame") . " | ";
-                       }
-                       print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
-                                                    file_name=>$diff->{'file'})},
-                                     "history");
-                       print "</td>\n";
-
-               } elsif ($diff->{'status'} eq "M" || $diff->{'status'} eq "T") { # modified, or type changed
-                       my $mode_chnge = "";
-                       if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
-                               $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
-                               if ($from_file_type ne $to_file_type) {
-                                       $mode_chnge .= " from $from_file_type to $to_file_type";
-                               }
-                               if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
-                                       if ($from_mode_str && $to_mode_str) {
-                                               $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
-                                       } elsif ($to_mode_str) {
-                                               $mode_chnge .= " mode: $to_mode_str";
-                                       }
-                               }
-                               $mode_chnge .= "]</span>\n";
-                       }
-                       print "<td>";
-                       print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
-                                                    hash_base=>$hash, file_name=>$diff->{'file'}),
-                                     -class => "list"}, esc_path($diff->{'file'}));
-                       print "</td>\n";
-                       print "<td>$mode_chnge</td>\n";
-                       print "<td class=\"link\">";
-                       if ($action eq 'commitdiff') {
-                               # link to patch
-                               $patchno++;
-                               print $cgi->a({-href => "#patch$patchno"}, "patch") .
-                                     " | ";
-                       } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
-                               # "commit" view and modified file (not onlu mode changed)
-                               print $cgi->a({-href => href(action=>"blobdiff",
-                                                            hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
-                                                            hash_base=>$hash, hash_parent_base=>$parent,
-                                                            file_name=>$diff->{'file'})},
-                                             "diff") .
-                                     " | ";
-                       }
-                       print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
-                                                    hash_base=>$hash, file_name=>$diff->{'file'})},
-                                      "blob") . " | ";
-                       if ($have_blame) {
-                               print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
-                                                            file_name=>$diff->{'file'})},
-                                             "blame") . " | ";
-                       }
-                       print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
-                                                    file_name=>$diff->{'file'})},
-                                     "history");
-                       print "</td>\n";
-
-               } elsif ($diff->{'status'} eq "R" || $diff->{'status'} eq "C") { # renamed or copied
-                       my %status_name = ('R' => 'moved', 'C' => 'copied');
-                       my $nstatus = $status_name{$diff->{'status'}};
-                       my $mode_chng = "";
-                       if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
-                               # mode also for directories, so we cannot use $to_mode_str
-                               $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
-                       }
-                       print "<td>" .
-                             $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
-                                                    hash=>$diff->{'to_id'}, file_name=>$diff->{'to_file'}),
-                                     -class => "list"}, esc_path($diff->{'to_file'})) . "</td>\n" .
-                             "<td><span class=\"file_status $nstatus\">[$nstatus from " .
-                             $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
-                                                    hash=>$diff->{'from_id'}, file_name=>$diff->{'from_file'}),
-                                     -class => "list"}, esc_path($diff->{'from_file'})) .
-                             " with " . (int $diff->{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
-                             "<td class=\"link\">";
-                       if ($action eq 'commitdiff') {
-                               # link to patch
-                               $patchno++;
-                               print $cgi->a({-href => "#patch$patchno"}, "patch") .
-                                     " | ";
-                       } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
-                               # "commit" view and modified file (not only pure rename or copy)
-                               print $cgi->a({-href => href(action=>"blobdiff",
-                                                            hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
-                                                            hash_base=>$hash, hash_parent_base=>$parent,
-                                                            file_name=>$diff->{'to_file'}, file_parent=>$diff->{'from_file'})},
-                                             "diff") .
-                                     " | ";
-                       }
-                       print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
-                                                    hash_base=>$parent, file_name=>$diff->{'to_file'})},
-                                     "blob") . " | ";
-                       if ($have_blame) {
-                               print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
-                                                            file_name=>$diff->{'to_file'})},
-                                             "blame") . " | ";
-                       }
-                       print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
-                                                   file_name=>$diff->{'to_file'})},
-                                     "history");
-                       print "</td>\n";
-
-               } # we should not encounter Unmerged (U) or Unknown (X) status
-               print "</tr>\n";
-       }
-       print "</tbody>" if $has_header;
-       print "</table>\n";
-}
-
-sub git_patchset_body {
-       my ($fd, $difftree, $hash, @hash_parents) = @_;
-       my ($hash_parent) = $hash_parents[0];
-
-       my $is_combined = (@hash_parents > 1);
-       my $patch_idx = 0;
-       my $patch_number = 0;
-       my $patch_line;
-       my $diffinfo;
-       my $to_name;
-       my (%from, %to);
-
-       print "<div class=\"patchset\">\n";
-
-       # skip to first patch
-       while ($patch_line = <$fd>) {
-               chomp $patch_line;
-
-               last if ($patch_line =~ m/^diff /);
-       }
-
- PATCH:
-       while ($patch_line) {
-
-               # parse "git diff" header line
-               if ($patch_line =~ m/^diff --git (\"(?:[^\\\"]*(?:\\.[^\\\"]*)*)\"|[^ "]*) (.*)$/) {
-                       # $1 is from_name, which we do not use
-                       $to_name = unquote($2);
-                       $to_name =~ s!^b/!!;
-               } elsif ($patch_line =~ m/^diff --(cc|combined) ("?.*"?)$/) {
-                       # $1 is 'cc' or 'combined', which we do not use
-                       $to_name = unquote($2);
-               } else {
-                       $to_name = undef;
-               }
-
-               # check if current patch belong to current raw line
-               # and parse raw git-diff line if needed
-               if (is_patch_split($diffinfo, { 'to_file' => $to_name })) {
-                       # this is continuation of a split patch
-                       print "<div class=\"patch cont\">\n";
-               } else {
-                       # advance raw git-diff output if needed
-                       $patch_idx++ if defined $diffinfo;
-
-                       # read and prepare patch information
-                       $diffinfo = parsed_difftree_line($difftree->[$patch_idx]);
-
-                       # compact combined diff output can have some patches skipped
-                       # find which patch (using pathname of result) we are at now;
-                       if ($is_combined) {
-                               while ($to_name ne $diffinfo->{'to_file'}) {
-                                       print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n" .
-                                             format_diff_cc_simplified($diffinfo, @hash_parents) .
-                                             "</div>\n";  # class="patch"
-
-                                       $patch_idx++;
-                                       $patch_number++;
-
-                                       last if $patch_idx > $#$difftree;
-                                       $diffinfo = parsed_difftree_line($difftree->[$patch_idx]);
-                               }
-                       }
-
-                       # modifies %from, %to hashes
-                       parse_from_to_diffinfo($diffinfo, \%from, \%to, @hash_parents);
-
-                       # this is first patch for raw difftree line with $patch_idx index
-                       # we index @$difftree array from 0, but number patches from 1
-                       print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
-               }
-
-               # git diff header
-               #assert($patch_line =~ m/^diff /) if DEBUG;
-               #assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
-               $patch_number++;
-               # print "git diff" header
-               print format_git_diff_header_line($patch_line, $diffinfo,
-                                                 \%from, \%to);
-
-               # print extended diff header
-               print "<div class=\"diff extended_header\">\n";
-       EXTENDED_HEADER:
-               while ($patch_line = <$fd>) {
-                       chomp $patch_line;
-
-                       last EXTENDED_HEADER if ($patch_line =~ m/^--- |^diff /);
-
-                       print format_extended_diff_header_line($patch_line, $diffinfo,
-                                                              \%from, \%to);
-               }
-               print "</div>\n"; # class="diff extended_header"
-
-               # from-file/to-file diff header
-               if (! $patch_line) {
-                       print "</div>\n"; # class="patch"
-                       last PATCH;
-               }
-               next PATCH if ($patch_line =~ m/^diff /);
-               #assert($patch_line =~ m/^---/) if DEBUG;
-
-               my $last_patch_line = $patch_line;
-               $patch_line = <$fd>;
-               chomp $patch_line;
-               #assert($patch_line =~ m/^\+\+\+/) if DEBUG;
-
-               print format_diff_from_to_header($last_patch_line, $patch_line,
-                                                $diffinfo, \%from, \%to,
-                                                @hash_parents);
-
-               # the patch itself
-       LINE:
-               while ($patch_line = <$fd>) {
-                       chomp $patch_line;
-
-                       next PATCH if ($patch_line =~ m/^diff /);
-
-                       print format_diff_line($patch_line, \%from, \%to);
-               }
-
-       } continue {
-               print "</div>\n"; # class="patch"
-       }
-
-       # for compact combined (--cc) format, with chunk and patch simpliciaction
-       # patchset might be empty, but there might be unprocessed raw lines
-       for (++$patch_idx if $patch_number > 0;
-            $patch_idx < @$difftree;
-            ++$patch_idx) {
-               # read and prepare patch information
-               $diffinfo = parsed_difftree_line($difftree->[$patch_idx]);
-
-               # generate anchor for "patch" links in difftree / whatchanged part
-               print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n" .
-                     format_diff_cc_simplified($diffinfo, @hash_parents) .
-                     "</div>\n";  # class="patch"
-
-               $patch_number++;
-       }
-
-       if ($patch_number == 0) {
-               if (@hash_parents > 1) {
-                       print "<div class=\"diff nodifferences\">Trivial merge</div>\n";
-               } else {
-                       print "<div class=\"diff nodifferences\">No differences found</div>\n";
-               }
-       }
-
-       print "</div>\n"; # class="patchset"
-}
-
-# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-
-sub git_project_list_body {
-       my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
-
-       my ($check_forks) = gitweb_check_feature('forks');
-
-       my @projects;
-       foreach my $pr (@$projlist) {
-               my (@aa) = git_get_last_activity($pr->{'path'});
-               unless (@aa) {
-                       next;
-               }
-               ($pr->{'age'}, $pr->{'age_string'}) = @aa;
-               if (!defined $pr->{'descr'}) {
-                       my $descr = git_get_project_description($pr->{'path'}) || "";
-                       $pr->{'descr_long'} = to_utf8($descr);
-                       $pr->{'descr'} = chop_str($descr, $projects_list_description_width, 5);
-               }
-               if (!defined $pr->{'owner'}) {
-                       $pr->{'owner'} = git_get_project_owner("$pr->{'path'}") || "";
-               }
-               if ($check_forks) {
-                       my $pname = $pr->{'path'};
-                       if (($pname =~ s/\.git$//) &&
-                           ($pname !~ /\/$/) &&
-                           (-d "$projectroot/$pname")) {
-                               $pr->{'forks'} = "-d $projectroot/$pname";
-                       }
-                       else {
-                               $pr->{'forks'} = 0;
-                       }
-               }
-               push @projects, $pr;
-       }
-
-       $order ||= $default_projects_order;
-       $from = 0 unless defined $from;
-       $to = $#projects if (!defined $to || $#projects < $to);
-
-       print "<table class=\"project_list\">\n";
-       unless ($no_header) {
-               print "<tr>\n";
-               if ($check_forks) {
-                       print "<th></th>\n";
-               }
-               if ($order eq "project") {
-                       @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
-                       print "<th>Project</th>\n";
-               } else {
-                       print "<th>" .
-                             $cgi->a({-href => href(project=>undef, order=>'project'),
-                                      -class => "header"}, "Project") .
-                             "</th>\n";
-               }
-               if ($order eq "descr") {
-                       @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
-                       print "<th>Description</th>\n";
-               } else {
-                       print "<th>" .
-                             $cgi->a({-href => href(project=>undef, order=>'descr'),
-                                      -class => "header"}, "Description") .
-                             "</th>\n";
-               }
-               if ($order eq "owner") {
-                       @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
-                       print "<th>Owner</th>\n";
-               } else {
-                       print "<th>" .
-                             $cgi->a({-href => href(project=>undef, order=>'owner'),
-                                      -class => "header"}, "Owner") .
-                             "</th>\n";
-               }
-               if ($order eq "age") {
-                       @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
-                       print "<th>Last Change</th>\n";
-               } else {
-                       print "<th>" .
-                             $cgi->a({-href => href(project=>undef, order=>'age'),
-                                      -class => "header"}, "Last Change") .
-                             "</th>\n";
-               }
-               print "<th></th>\n" .
-                     "</tr>\n";
-       }
-       my $alternate = 1;
-       for (my $i = $from; $i <= $to; $i++) {
-               my $pr = $projects[$i];
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-               if ($check_forks) {
-                       print "<td>";
-                       if ($pr->{'forks'}) {
-                               print "<!-- $pr->{'forks'} -->\n";
-                               print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
-                       }
-                       print "</td>\n";
-               }
-               print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
-                                       -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
-                     "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
-                                       -class => "list", -title => $pr->{'descr_long'}},
-                                       esc_html($pr->{'descr'})) . "</td>\n" .
-                     "<td><i>" . chop_and_escape_str($pr->{'owner'}, 15) . "</i></td>\n";
-               print "<td class=\"". age_class($pr->{'age'}) . "\">" .
-                     (defined $pr->{'age_string'} ? $pr->{'age_string'} : "No commits") . "</td>\n" .
-                     "<td class=\"link\">" .
-                     $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
-                     $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
-                     $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
-                     $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
-                     ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
-                     "</td>\n" .
-                     "</tr>\n";
-       }
-       if (defined $extra) {
-               print "<tr>\n";
-               if ($check_forks) {
-                       print "<td></td>\n";
-               }
-               print "<td colspan=\"5\">$extra</td>\n" .
-                     "</tr>\n";
-       }
-       print "</table>\n";
-}
-
-
-sub git_shortlog_body {
-       # uses global variable $project
-       my ($commitlist, $from, $to, $refs, $extra) = @_;
-
-       $from = 0 unless defined $from;
-       $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
-
-       print "<table class=\"shortlog\">\n";
-       my $alternate = 1;
-       for (my $i = $from; $i <= $to; $i++) {
-               my %co = %{$commitlist->[$i]};
-               my $commit = $co{'id'};
-               my $ref = format_ref_marker($refs, $commit);
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-               my $author = chop_and_escape_str($co{'author_name'}, 10);
-               # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
-               print "<td title=\"$co{'age_string_age'}\" class=\"age\">$co{'age_string_date'}</td>\n" .
-                     "<td><i>" . $author . "</i></td>\n" .
-                     "<td>";
-               print format_subject_html($co{'title'}, $co{'title_short'},
-                                         href(action=>"commit", hash=>$commit), $ref);
-               print "</td>\n" .
-                     "<td class=\"link\">" .
-                     $cgi->a({-class=>"commit",-href => href(action=>"commit", hash=>$commit)}, substr($commit,0,8)) . " | " .
-                     $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "diff") . " | " .
-                     $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
-               my $snapshot_links = format_snapshot_links($commit);
-               if (defined $snapshot_links) {
-                       print " | " . $snapshot_links;
-               }
-               print "</td>\n" .
-                     "</tr>\n";
-       }
-       if (defined $extra) {
-               print "<tr>\n" .
-                     "<td colspan=\"4\">$extra</td>\n" .
-                     "</tr>\n";
-       }
-       print "</table>\n";
-}
-
-sub git_history_body {
-       # Warning: assumes constant type (blob or tree) during history
-       my ($commitlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
-
-       $from = 0 unless defined $from;
-       $to = $#{$commitlist} unless (defined $to && $to <= $#{$commitlist});
-
-       print "<table class=\"history\">\n";
-       my $alternate = 1;
-       for (my $i = $from; $i <= $to; $i++) {
-               my %co = %{$commitlist->[$i]};
-               if (!%co) {
-                       next;
-               }
-               my $commit = $co{'id'};
-
-               my $ref = format_ref_marker($refs, $commit);
-
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-       # shortlog uses      chop_str($co{'author_name'}, 10)
-               my $author = chop_and_escape_str($co{'author_name'}, 15, 3);
-               print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
-                     "<td><i>" . $author . "</i></td>\n" .
-                     "<td>";
-               # originally git_history used chop_str($co{'title'}, 50)
-               print format_subject_html($co{'title'}, $co{'title_short'},
-                                         href(action=>"commit", hash=>$commit), $ref);
-               print "</td>\n" .
-                     "<td class=\"link\">" .
-                     $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
-                     $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
-
-               if ($ftype eq 'blob') {
-                       my $blob_current = git_get_hash_by_path($hash_base, $file_name);
-                       my $blob_parent  = git_get_hash_by_path($commit, $file_name);
-                       if (defined $blob_current && defined $blob_parent &&
-                                       $blob_current ne $blob_parent) {
-                               print " | " .
-                                       $cgi->a({-href => href(action=>"blobdiff",
-                                                              hash=>$blob_current, hash_parent=>$blob_parent,
-                                                              hash_base=>$hash_base, hash_parent_base=>$commit,
-                                                              file_name=>$file_name)},
-                                               "diff to current");
-                       }
-               }
-               print "</td>\n" .
-                     "</tr>\n";
-       }
-       if (defined $extra) {
-               print "<tr>\n" .
-                     "<td colspan=\"4\">$extra</td>\n" .
-                     "</tr>\n";
-       }
-       print "</table>\n";
-}
-
-sub git_tags_body {
-       # uses global variable $project
-       my ($taglist, $from, $to, $extra) = @_;
-       $from = 0 unless defined $from;
-       $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
-
-       print "<table class=\"tags\">\n";
-       my $alternate = 1;
-       for (my $i = $from; $i <= $to; $i++) {
-               my $entry = $taglist->[$i];
-               my %tag = %$entry;
-               my $comment = $tag{'subject'};
-               my $comment_short;
-               if (defined $comment) {
-                       $comment_short = chop_str($comment, 30, 5);
-               }
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-               if (defined $tag{'age'}) {
-                       print "<td class=\"age\">$tag{'age'}</td>\n";
-               } else {
-                       print "<td></td>\n";
-               }
-               print "<td>" .
-                     $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
-                              -class => "list name"}, esc_html($tag{'name'})) .
-                     "</td>\n" .
-                     "<td>";
-               if (defined $comment) {
-                       print format_subject_html($comment, $comment_short,
-                                                 href(action=>"tag", hash=>$tag{'id'}));
-               }
-               print "</td>\n" .
-                     "<td class=\"selflink\">";
-               if ($tag{'type'} eq "tag") {
-                       print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
-               } else {
-                       print "&nbsp;";
-               }
-               print "</td>\n" .
-                     "<td class=\"link\">" . " | " ;
-               if ($tag{'reftype'} eq "commit") {
-                 print $cgi->a({-class=>"commit",-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, 
-                               substr($tag{'refid'},0,9));
-                 print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'fullname'})}, "shortlog") .
-                   " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'fullname'})}, "log");
-               } elsif ($tag{'reftype'} eq "blob") {
-                       print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
-               } else {
-                 print $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
-               }
-               print "</td>\n" .
-                     "</tr>";
-       }
-       if (defined $extra) {
-               print "<tr>\n" .
-                     "<td colspan=\"5\">$extra</td>\n" .
-                     "</tr>\n";
-       }
-       print "</table>\n";
-}
-
-sub git_heads_body {
-       # uses global variable $project
-       my ($headlist, $head, $from, $to, $extra) = @_;
-       $from = 0 unless defined $from;
-       $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
-
-       print "<table class=\"heads\">\n";
-       my $alternate = 1;
-       for (my $i = $from; $i <= $to; $i++) {
-               my $entry = $headlist->[$i];
-               my %ref = %$entry;
-               my $curr = $ref{'id'} eq $head;
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-               print "<td><i>$ref{'age'}</i></td>\n" .
-                     ($curr ? "<td class=\"current_head\">" : "<td>") .
-                     $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'fullname'}),
-                              -class => "list name"},esc_html($ref{'name'})) .
-                     "</td>\n" .
-                     "<td class=\"link\">" .
-                     $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'fullname'})}, "shortlog") . " | " .
-                     $cgi->a({-href => href(action=>"log", hash=>$ref{'fullname'})}, "log") . " | " .
-                     $cgi->a({-href => href(action=>"tree", hash=>$ref{'fullname'}, hash_base=>$ref{'name'})}, "tree") .
-                     "</td>\n" .
-                     "</tr>";
-       }
-       if (defined $extra) {
-               print "<tr>\n" .
-                     "<td colspan=\"3\">$extra</td>\n" .
-                     "</tr>\n";
-       }
-       print "</table>\n";
-}
-
-sub git_search_grep_body {
-       my ($commitlist, $from, $to, $extra) = @_;
-       $from = 0 unless defined $from;
-       $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
-
-       print "<table class=\"commit_search\">\n";
-       my $alternate = 1;
-       for (my $i = $from; $i <= $to; $i++) {
-               my %co = %{$commitlist->[$i]};
-               if (!%co) {
-                       next;
-               }
-               my $commit = $co{'id'};
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-               my $author = chop_and_escape_str($co{'author_name'}, 15, 5);
-               print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
-                     "<td><i>" . $author . "</i></td>\n" .
-                     "<td>" .
-                     $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
-                              -class => "list subject"},
-                             chop_and_escape_str($co{'title'}, 50) . "<br/>");
-               my $comment = $co{'comment'};
-               foreach my $line (@$comment) {
-                       if ($line =~ m/^(.*?)($search_regexp)(.*)$/i) {
-                               my ($lead, $match, $trail) = ($1, $2, $3);
-                               $match = chop_str($match, 70, 5, 'center');
-                               my $contextlen = int((80 - length($match))/2);
-                               $contextlen = 30 if ($contextlen > 30);
-                               $lead  = chop_str($lead,  $contextlen, 10, 'left');
-                               $trail = chop_str($trail, $contextlen, 10, 'right');
-
-                               $lead  = esc_html($lead);
-                               $match = esc_html($match);
-                               $trail = esc_html($trail);
-
-                               print "$lead<span class=\"match\">$match</span>$trail<br />";
-                       }
-               }
-               print "</td>\n" .
-                     "<td class=\"link\">" .
-                     $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
-                     " | " .
-                     $cgi->a({-href => href(action=>"commitdiff", hash=>$co{'id'})}, "commitdiff") .
-                     " | " .
-                     $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
-               print "</td>\n" .
-                     "</tr>\n";
-       }
-       if (defined $extra) {
-               print "<tr>\n" .
-                     "<td colspan=\"3\">$extra</td>\n" .
-                     "</tr>\n";
-       }
-       print "</table>\n";
-}
-
-## ======================================================================
-## ======================================================================
-## actions
-
-sub git_project_list {
-       my $order = $cgi->param('o');
-       if (defined $order && $order !~ m/none|project|descr|owner|age/) {
-               die_error(undef, "Unknown order parameter");
-       }
-
-       my @list = git_get_projects_list();
-       if (!@list) {
-               die_error(undef, "No projects found");
-       }
-
-       git_header_html();
-       if (-f $home_text) {
-               print "<div class=\"index_include\">\n";
-               open (my $fd, $home_text);
-               print <$fd>;
-               close $fd;
-               print "</div>\n";
-       }
-       git_project_list_body(\@list, $order);
-       git_footer_html();
-}
-
-sub git_forks {
-       my $order = $cgi->param('o');
-       if (defined $order && $order !~ m/none|project|descr|owner|age/) {
-               die_error(undef, "Unknown order parameter");
-       }
-
-       my @list = git_get_projects_list($project);
-       if (!@list) {
-               die_error(undef, "No forks found");
-       }
-
-       git_header_html();
-       git_print_page_nav('','');
-       git_print_header_div('summary', "$project forks");
-       git_project_list_body(\@list, $order);
-       git_footer_html();
-}
-
-sub git_project_index {
-       my @projects = git_get_projects_list($project);
-
-       print $cgi->header(
-               -type => 'text/plain',
-               -charset => 'utf-8',
-               -content_disposition => 'inline; filename="index.aux"');
-
-       foreach my $pr (@projects) {
-               if (!exists $pr->{'owner'}) {
-                       $pr->{'owner'} = git_get_project_owner("$pr->{'path'}");
-               }
-
-               my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
-               # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
-               $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
-               $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
-               $path  =~ s/ /\+/g;
-               $owner =~ s/ /\+/g;
-
-               print "$path $owner\n";
-       }
-}
-
-sub git_summary {
-       my $descr = git_get_project_description($project) || "none";
-       my %co = parse_commit("HEAD");
-       my %cd = %co ? parse_date($co{'committer_epoch'}, $co{'committer_tz'}) : ();
-       my $head = $co{'id'};
-
-       my $owner = git_get_project_owner($project);
-
-       my $refs = git_get_references();
-       # These get_*_list functions return one more to allow us to see if
-       # there are more ...
-       my @taglist  = git_get_tags_list(16);
-       my @headlist = git_get_heads_list(16);
-       my @forklist;
-       my ($check_forks) = gitweb_check_feature('forks');
-
-       if ($check_forks) {
-               @forklist = git_get_projects_list($project);
-       }
-
-       git_header_html();
-       git_print_page_nav('summary','', $head);
-
-       print "<div class=\"title\">&nbsp;</div>\n";
-       print "<table class=\"projects_list\">\n" .
-             "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
-             "<tr><td>owner</td><td>" . esc_html($owner) . "</td></tr>\n";
-       if (defined $cd{'rfc2822'}) {
-               print "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
-       }
-
-       # use per project git URL list in $projectroot/$project/cloneurl
-       # or make project git URL from git base URL and project name
-       my $url_tag = "URL";
-       my @url_list = git_get_project_url_list($project);
-       @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
-       foreach my $git_url (@url_list) {
-               next unless $git_url;
-               print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
-               $url_tag = "";
-       }
-       print "</table>\n";
-
-       if (-s "$projectroot/$project/README.html") {
-               if (open my $fd, "$projectroot/$project/README.html") {
-                       print "<div class=\"title\">readme</div>\n" .
-                             "<div class=\"readme\">\n";
-                       print $_ while (<$fd>);
-                       print "\n</div>\n"; # class="readme"
-                       close $fd;
-               }
-       }
-
-       # we need to request one more than 16 (0..15) to check if
-       # those 16 are all
-       my @commitlist = $head ? parse_commits($head, 17) : ();
-       if (@commitlist) {
-               git_print_header_div('shortlog');
-               git_shortlog_body(\@commitlist, 0, 15, $refs,
-                                 $#commitlist <=  15 ? undef :
-                                 $cgi->a({-href => href(action=>"shortlog")}, "..."));
-       }
-
-       if (@taglist) {
-               git_print_header_div('tags');
-               git_tags_body(\@taglist, 0, 15,
-                             $#taglist <=  15 ? undef :
-                             $cgi->a({-href => href(action=>"tags")}, "..."));
-       }
-
-       if (@headlist) {
-               git_print_header_div('heads');
-               git_heads_body(\@headlist, $head, 0, 15,
-                              $#headlist <= 15 ? undef :
-                              $cgi->a({-href => href(action=>"heads")}, "..."));
-       }
-
-       if (@forklist) {
-               git_print_header_div('forks');
-               git_project_list_body(\@forklist, undef, 0, 15,
-                                     $#forklist <= 15 ? undef :
-                                     $cgi->a({-href => href(action=>"forks")}, "..."),
-                                     'noheader');
-       }
-
-       git_footer_html();
-}
-
-sub git_tag {
-       my $head = git_get_head_hash($project);
-       git_header_html();
-       git_print_page_nav('','', $head,undef,$head);
-       my %tag = parse_tag($hash);
-
-       if (! %tag) {
-               die_error(undef, "Unknown tag object");
-       }
-
-       git_print_header_div('commit', esc_html($tag{'name'}), $hash);
-       print "<div class=\"title_text\">\n" .
-             "<table class=\"object_header\">\n" .
-             "<tr>\n" .
-             "<td>object</td>\n" .
-             "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
-                              $tag{'object'}) . "</td>\n" .
-             "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
-                                             $tag{'type'}) . "</td>\n" .
-             "</tr>\n";
-       if (defined($tag{'author'})) {
-               my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
-               print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
-               print "<tr><td></td><td>" . $ad{'rfc2822'} .
-                       sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
-                       "</td></tr>\n";
-       }
-       print "</table>\n\n" .
-             "</div>\n";
-       print "<div class=\"page_body\">";
-       my $comment = $tag{'comment'};
-       foreach my $line (@$comment) {
-               chomp $line;
-               print esc_html($line, -nbsp=>1) . "<br/>\n";
-       }
-       print "</div>\n";
-       git_footer_html();
-}
-
-sub git_blame2 {
-       my $fd;
-       my $ftype;
-
-       my ($have_blame) = gitweb_check_feature('blame');
-       if (!$have_blame) {
-               die_error('403 Permission denied', "Permission denied");
-       }
-       die_error('404 Not Found', "File name not defined") if (!$file_name);
-       $hash_base ||= git_get_head_hash($project);
-       die_error(undef, "Couldn't find base commit") unless ($hash_base);
-       my %co = parse_commit($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_cmd(), "blame", '-p', '--',
-             $file_name, $hash_base)
-               or die_error(undef, "Open git-blame failed");
-       git_header_html();
-       my $formats_nav =
-               $cgi->a({-href => href(action=>"blob", -replay=>1)},
-                       "blob") .
-               " | " .
-               $cgi->a({-href => href(action=>"history", -replay=>1)},
-                       "history") .
-               " | " .
-               $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
-                       "HEAD");
-       git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
-       git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
-       git_print_page_path($file_name, $ftype, $hash_base);
-       my @rev_color = (qw(light2 dark2));
-       my $num_colors = scalar(@rev_color);
-       my $current_color = 0;
-       my $last_rev;
-       print <<HTML;
-<div class="page_body">
-<table class="blame">
-<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
-HTML
-       my %metainfo = ();
-       while (1) {
-               $_ = <$fd>;
-               last unless defined $_;
-               my ($full_rev, $orig_lineno, $lineno, $group_size) =
-                   /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
-               if (!exists $metainfo{$full_rev}) {
-                       $metainfo{$full_rev} = {};
-               }
-               my $meta = $metainfo{$full_rev};
-               while (<$fd>) {
-                       last if (s/^\t//);
-                       if (/^(\S+) (.*)$/) {
-                               $meta->{$1} = $2;
-                       }
-               }
-               my $data = $_;
-               chomp $data;
-               my $rev = substr($full_rev, 0, 8);
-               my $author = $meta->{'author'};
-               my %date = parse_date($meta->{'author-time'},
-                                     $meta->{'author-tz'});
-               my $date = $date{'iso-tz'};
-               if ($group_size) {
-                       $current_color = ++$current_color % $num_colors;
-               }
-               print "<tr class=\"$rev_color[$current_color]\">\n";
-               if ($group_size) {
-                       print "<td class=\"sha1\"";
-                       print " title=\"". esc_html($author) . ", $date\"";
-                       print " rowspan=\"$group_size\"" if ($group_size > 1);
-                       print ">";
-                       print $cgi->a({-href => href(action=>"commit",
-                                                    hash=>$full_rev,
-                                                    file_name=>$file_name)},
-                                     esc_html($rev));
-                       print "</td>\n";
-               }
-               open (my $dd, "-|", git_cmd(), "rev-parse", "$full_rev^")
-                       or die_error(undef, "Open git-rev-parse failed");
-               my $parent_commit = <$dd>;
-               close $dd;
-               chomp($parent_commit);
-               my $blamed = href(action => 'blame',
-                                 file_name => $meta->{'filename'},
-                                 hash_base => $parent_commit);
-               print "<td class=\"linenr\">";
-               print $cgi->a({ -href => "$blamed#l$orig_lineno",
-                               -id => "l$lineno",
-                               -class => "linenr" },
-                             esc_html($lineno));
-               print "</td>";
-               print "<td class=\"pre\">" . esc_html($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 $fd;
-
-       my ($have_blame) = gitweb_check_feature('blame');
-       if (!$have_blame) {
-               die_error('403 Permission denied', "Permission denied");
-       }
-       die_error('404 Not Found', "File name not defined") if (!$file_name);
-       $hash_base ||= git_get_head_hash($project);
-       die_error(undef, "Couldn't find base commit") unless ($hash_base);
-       my %co = parse_commit($hash_base)
-               or die_error(undef, "Reading commit failed");
-       if (!defined $hash) {
-               $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
-                       or die_error(undef, "Error lookup file");
-       }
-       open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
-               or die_error(undef, "Open git-annotate failed");
-       git_header_html();
-       my $formats_nav =
-               $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
-                       "blob") .
-               " | " .
-               $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
-                       "history") .
-               " | " .
-               $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
-                       "HEAD");
-       git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
-       git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
-       git_print_page_path($file_name, 'blob', $hash_base);
-       print "<div class=\"page_body\">\n";
-       print <<HTML;
-<table class="blame">
-  <tr>
-    <th>Commit</th>
-    <th>Age</th>
-    <th>Author</th>
-    <th>Line</th>
-    <th>Data</th>
-  </tr>
-HTML
-       my @line_class = (qw(light dark));
-       my $line_class_len = scalar (@line_class);
-       my $line_class_num = $#line_class;
-       while (my $line = <$fd>) {
-               my $long_rev;
-               my $short_rev;
-               my $author;
-               my $time;
-               my $lineno;
-               my $data;
-               my $age;
-               my $age_str;
-               my $age_class;
-
-               chomp $line;
-               $line_class_num = ($line_class_num + 1) % $line_class_len;
-
-               if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
-                       $long_rev = $1;
-                       $author   = $2;
-                       $time     = $3;
-                       $lineno   = $4;
-                       $data     = $5;
-               } else {
-                       print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
-                       next;
-               }
-               $short_rev  = substr ($long_rev, 0, 8);
-               $age        = time () - $time;
-               $age_str    = age_string ($age);
-               $age_str    =~ s/ /&nbsp;/g;
-               $age_class  = age_class($age);
-               $author     = esc_html ($author);
-               $author     =~ s/ /&nbsp;/g;
-
-               $data = untabify($data);
-               $data = esc_html ($data);
-
-               print <<HTML;
-  <tr class="$line_class[$line_class_num]">
-    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
-    <td class="$age_class">$age_str</td>
-    <td>$author</td>
-    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
-    <td class="pre">$data</td>
-  </tr>
-HTML
-       } # while (my $line = <$fd>)
-       print "</table>\n\n";
-       close $fd
-               or print "Reading blob failed.\n";
-       print "</div>";
-       git_footer_html();
-}
-
-sub git_tags {
-       my $head = git_get_head_hash($project);
-       git_header_html();
-       git_print_page_nav('','', $head,undef,$head);
-       git_print_header_div('summary', $project);
-
-       my @tagslist = git_get_tags_list();
-       if (@tagslist) {
-               git_tags_body(\@tagslist);
-       }
-       git_footer_html();
-}
-
-sub git_heads {
-       my $head = git_get_head_hash($project);
-       git_header_html();
-       git_print_page_nav('','', $head,undef,$head);
-       git_print_header_div('summary', $project);
-
-       my @headslist = git_get_heads_list();
-       if (@headslist) {
-               git_heads_body(\@headslist, $head);
-       }
-       git_footer_html();
-}
-
-sub git_blob_plain {
-       my $expires;
-
-       if (!defined $hash) {
-               if (defined $file_name) {
-                       my $base = $hash_base || git_get_head_hash($project);
-                       $hash = git_get_hash_by_path($base, $file_name, "blob")
-                               or die_error(undef, "Error lookup file");
-               } else {
-                       die_error(undef, "No file name defined");
-               }
-       } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
-               # blobs defined by non-textual hash id's can be cached
-               $expires = "+1d";
-       }
-
-       my $type = shift;
-       open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
-               or die_error(undef, "Couldn't cat $file_name, $hash");
-
-       $type ||= blob_mimetype($fd, $file_name);
-
-       # save as filename, even when no $file_name is given
-       my $save_as = "$hash";
-       if (defined $file_name) {
-               $save_as = $file_name;
-       } elsif ($type =~ m/^text\//) {
-               $save_as .= '.txt';
-       }
-
-       print $cgi->header(
-               -type => "$type",
-               -expires=>$expires,
-               -content_disposition => 'inline; filename="' . "$save_as" . '"');
-       undef $/;
-       binmode STDOUT, ':raw';
-       print <$fd>;
-       binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
-       $/ = "\n";
-       close $fd;
-}
-
-sub git_blob {
-       my $expires;
-
-       if (!defined $hash) {
-               if (defined $file_name) {
-                       my $base = $hash_base || git_get_head_hash($project);
-                       $hash = git_get_hash_by_path($base, $file_name, "blob")
-                               or die_error(undef, "Error lookup file");
-               } else {
-                       die_error(undef, "No file name defined");
-               }
-       } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
-               # blobs defined by non-textual hash id's can be cached
-               $expires = "+1d";
-       }
-
-       my ($have_blame) = gitweb_check_feature('blame');
-       open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
-               or die_error(undef, "Couldn't cat $file_name, $hash");
-       my $mimetype = blob_mimetype($fd, $file_name);
-       if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)! && -B $fd) {
-               close $fd;
-               return git_blob_plain($mimetype);
-       }
-       # we can have blame only for text/* mimetype
-       $have_blame &&= ($mimetype =~ m!^text/!);
-
-       git_header_html(undef, $expires);
-       my $formats_nav = '';
-       if (defined $hash_base && (my %co = parse_commit($hash_base))) {
-               if (defined $file_name) {
-                       if ($have_blame) {
-                               $formats_nav .=
-                                       $cgi->a({-href => href(action=>"blame", -replay=>1)},
-                                               "blame") .
-                                       " | ";
-                       }
-                       $formats_nav .=
-                               $cgi->a({-href => href(action=>"history", -replay=>1)},
-                                       "history") .
-                               " | " .
-                               $cgi->a({-href => href(action=>"blob_plain", -replay=>1)},
-                                       "raw") .
-                               " | " .
-                               $cgi->a({-href => href(action=>"blob",
-                                                      hash_base=>"HEAD", file_name=>$file_name)},
-                                       "HEAD");
-               } else {
-                       $formats_nav .=
-                               $cgi->a({-href => href(action=>"blob_plain", -replay=>1)},
-                                       "raw");
-               }
-               git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
-               git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
-       } else {
-               print "<div class=\"page_nav\">\n" .
-                     "<br/><br/></div>\n" .
-                     "<div class=\"title\">$hash</div>\n";
-       }
-       git_print_page_path($file_name, "blob", $hash_base);
-       print "<div class=\"page_body\">\n";
-       if ($mimetype =~ m!^image/!) {
-               print qq!<img type="$mimetype"!;
-               if ($file_name) {
-                       print qq! alt="$file_name" title="$file_name"!;
-               }
-               print qq! src="! .
-                     href(action=>"blob_plain", hash=>$hash,
-                          hash_base=>$hash_base, file_name=>$file_name) .
-                     qq!" />\n!;
-       } else {
-               my $nr;
-               while (my $line = <$fd>) {
-                       chomp $line;
-                       $nr++;
-                       $line = untabify($line);
-                       printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
-                              $nr, $nr, $nr, esc_html($line, -nbsp=>1);
-               }
-       }
-       close $fd
-               or print "Reading blob failed.\n";
-       print "</div>";
-       git_footer_html();
-}
-
-sub git_tree {
-       if (!defined $hash_base) {
-               $hash_base = "HEAD";
-       }
-       if (!defined $hash) {
-               if (defined $file_name) {
-                       $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
-               } else {
-                       $hash = $hash_base;
-               }
-       }
-       $/ = "\0";
-       open my $fd, "-|", git_cmd(), "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";
-
-       my $refs = git_get_references();
-       my $ref = format_ref_marker($refs, $hash_base);
-       git_header_html();
-       my $basedir = '';
-       my ($have_blame) = gitweb_check_feature('blame');
-       if (defined $hash_base && (my %co = parse_commit($hash_base))) {
-               my @views_nav = ();
-               if (defined $file_name) {
-                       push @views_nav,
-                               $cgi->a({-href => href(action=>"history", -replay=>1)},
-                                       "history"),
-                               $cgi->a({-href => href(action=>"tree",
-                                                      hash_base=>"HEAD", file_name=>$file_name)},
-                                       "HEAD"),
-               }
-               my $snapshot_links = format_snapshot_links($hash);
-               if (defined $snapshot_links) {
-                       # FIXME: Should be available when we have no hash base as well.
-                       push @views_nav, $snapshot_links;
-               }
-               git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
-               git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
-       } else {
-               undef $hash_base;
-               print "<div class=\"page_nav\">\n";
-               print "<br/><br/></div>\n";
-               print "<div class=\"title\">$hash</div>\n";
-       }
-       if (defined $file_name) {
-               $basedir = $file_name;
-               if ($basedir ne '' && substr($basedir, -1) ne '/') {
-                       $basedir .= '/';
-               }
-       }
-       git_print_page_path($file_name, 'tree', $hash_base);
-       print "<div class=\"page_body\">\n";
-       print "<table class=\"tree\">\n";
-       my $alternate = 1;
-       # '..' (top directory) link if possible
-       if (defined $hash_base &&
-           defined $file_name && $file_name =~ m![^/]+$!) {
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-
-               my $up = $file_name;
-               $up =~ s!/?[^/]+$!!;
-               undef $up unless $up;
-               # based on git_print_tree_entry
-               print '<td class="mode">' . mode_str('040000') . "</td>\n";
-               print '<td class="list">';
-               print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
-                                            file_name=>$up)},
-                             "..");
-               print "</td>\n";
-               print "<td class=\"link\"></td>\n";
-
-               print "</tr>\n";
-       }
-       foreach my $line (@entries) {
-               my %t = parse_ls_tree_line($line, -z => 1);
-
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-
-               git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
-
-               print "</tr>\n";
-       }
-       print "</table>\n" .
-             "</div>";
-       git_footer_html();
-}
-
-sub git_snapshot {
-       my @supported_fmts = gitweb_check_feature('snapshot');
-       @supported_fmts = filter_snapshot_fmts(@supported_fmts);
-
-       my $format = $cgi->param('sf');
-       if (!@supported_fmts) {
-               die_error('403 Permission denied', "Permission denied");
-       }
-       # default to first supported snapshot format
-       $format ||= $supported_fmts[0];
-       if ($format !~ m/^[a-z0-9]+$/) {
-               die_error(undef, "Invalid snapshot format parameter");
-       } elsif (!exists($known_snapshot_formats{$format})) {
-               die_error(undef, "Unknown snapshot format");
-       } elsif (!grep($_ eq $format, @supported_fmts)) {
-               die_error(undef, "Unsupported snapshot format");
-       }
-
-       if (!defined $hash) {
-               $hash = git_get_head_hash($project);
-       }
-
-       my $name = $project;
-       $name =~ s,([^/])/*\.git$,$1,;
-       $name = basename($name);
-       my $filename = to_utf8($name);
-       $name =~ s/\047/\047\\\047\047/g;
-       my $cmd;
-       $filename .= "-$hash$known_snapshot_formats{$format}{'suffix'}";
-       $cmd = quote_command(
-               git_cmd(), 'archive',
-               "--format=$known_snapshot_formats{$format}{'format'}",
-               "--prefix=$name/", $hash);
-       if (exists $known_snapshot_formats{$format}{'compressor'}) {
-               $cmd .= ' | ' . quote_command(@{$known_snapshot_formats{$format}{'compressor'}});
-       }
-
-       print $cgi->header(
-               -type => $known_snapshot_formats{$format}{'type'},
-               -content_disposition => 'inline; filename="' . "$filename" . '"',
-               -status => '200 OK');
-
-       open my $fd, "-|", $cmd
-               or die_error(undef, "Execute git-archive failed");
-       binmode STDOUT, ':raw';
-       print <$fd>;
-       binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
-       close $fd;
-}
-
-sub git_log {
-       my $head = git_get_head_hash($project);
-       if (!defined $hash) {
-               $hash = $head;
-       }
-       if (!defined $page) {
-               $page = 0;
-       }
-       my $refs = git_get_references();
-
-       my @commitlist = parse_commits($hash, 101, (100 * $page));
-
-       my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#commitlist >= 100);
-
-       git_header_html();
-       git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
-
-       if (!@commitlist) {
-               my %co = parse_commit($hash);
-
-               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=>$commit)}, "tree") .
-                     "<br/>\n" .
-                     "</div>\n" .
-                     "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
-                     "</div>\n";
-
-               print "<div class=\"log_body\">\n";
-               git_print_log($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_footer_html();
-}
-
-sub git_commit {
-       $hash ||= $hash_base || "HEAD";
-       my %co = parse_commit($hash);
-       if (!%co) {
-               die_error(undef, "Unknown commit object");
-       }
-       my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
-       my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
-
-       my $parent  = $co{'parent'};
-       my $parents = $co{'parents'}; # listref
-
-       # we need to prepare $formats_nav before any parameter munging
-       my $formats_nav;
-       if (!defined $parent) {
-               # --root commitdiff
-               $formats_nav .= '(initial)';
-       } elsif (@$parents == 1) {
-               # single parent commit
-               $formats_nav .=
-                       '(parent: ' .
-                       $cgi->a({-href => href(action=>"commit",
-                                              hash=>$parent)},
-                               esc_html(substr($parent, 0, 7))) .
-                       ')';
-       } else {
-               # merge commit
-               $formats_nav .=
-                       '(merge: ' .
-                       join(' ', map {
-                               $cgi->a({-href => href(action=>"commit",
-                                                      hash=>$_)},
-                                       esc_html(substr($_, 0, 7)));
-                       } @$parents ) .
-                       ')';
-       }
-
-       if (!defined $parent) {
-               $parent = "--root";
-       }
-       my @difftree;
-       open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
-               @diff_opts,
-               (@$parents <= 1 ? $parent : '-c'),
-               $hash, "--"
-               or die_error(undef, "Open git-diff-tree failed");
-       @difftree = map { chomp; $_ } <$fd>;
-       close $fd or die_error(undef, "Reading git-diff-tree failed");
-
-       # non-textual hash id's can be cached
-       my $expires;
-       if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
-               $expires = "+1d";
-       }
-       my $refs = git_get_references();
-       my $ref = format_ref_marker($refs, $co{'id'});
-
-       git_header_html(undef, $expires);
-       git_print_page_nav('commit', '',
-                          $hash, $co{'tree'}, $hash,
-                          $formats_nav);
-
-       if (defined $co{'parent'}) {
-               git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
-       } else {
-               git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
-       }
-       print "<div class=\"title_text\">\n" .
-             "<table class=\"object_header\">\n";
-       print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
-             "<tr>" .
-             "<td></td><td> $ad{'rfc2822'}";
-       if ($ad{'hour_local'} < 6) {
-               printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
-                      $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
-       } else {
-               printf(" (%02d:%02d %s)",
-                      $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
-       }
-       print "</td>" .
-             "</tr>\n";
-       print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
-       print "<tr><td></td><td> $cd{'rfc2822'}" .
-             sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
-             "</td></tr>\n";
-       print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
-       print "<tr>" .
-             "<td>tree</td>" .
-             "<td class=\"sha1\">" .
-             $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
-                      class => "list"}, $co{'tree'}) .
-             "</td>" .
-             "<td class=\"link\">" .
-             $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
-                     "tree");
-       my $snapshot_links = format_snapshot_links($hash);
-       if (defined $snapshot_links) {
-               print " | " . $snapshot_links;
-       }
-       print "</td>" .
-             "</tr>\n";
-
-       foreach my $par (@$parents) {
-               print "<tr>" .
-                     "<td>parent</td>" .
-                     "<td class=\"sha1\">" .
-                     $cgi->a({-href => href(action=>"commit", hash=>$par),
-                              class => "list"}, $par) .
-                     "</td>" .
-                     "<td class=\"link\">" .
-                     $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
-                     " | " .
-                     $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
-                     "</td>" .
-                     "</tr>\n";
-       }
-       print "</table>".
-             "</div>\n";
-
-       print "<div class=\"page_body\">\n";
-       git_print_log($co{'comment'});
-       print "</div>\n";
-
-       git_difftree_body(\@difftree, $hash, @$parents);
-
-       git_footer_html();
-}
-
-sub git_object {
-       # object is defined by:
-       # - hash or hash_base alone
-       # - hash_base and file_name
-       my $type;
-
-       # - hash or hash_base alone
-       if ($hash || ($hash_base && !defined $file_name)) {
-               my $object_id = $hash || $hash_base;
-
-               open my $fd, "-|", quote_command(
-                       git_cmd(), 'cat-file', '-t', $object_id) . ' 2> /dev/null'
-                       or die_error('404 Not Found', "Object does not exist");
-               $type = <$fd>;
-               chomp $type;
-               close $fd
-                       or die_error('404 Not Found', "Object does not exist");
-
-       # - hash_base and file_name
-       } elsif ($hash_base && defined $file_name) {
-               $file_name =~ s,/+$,,;
-
-               system(git_cmd(), "cat-file", '-e', $hash_base) == 0
-                       or die_error('404 Not Found', "Base object does not exist");
-
-               # here errors should not hapen
-               open my $fd, "-|", git_cmd(), "ls-tree", $hash_base, "--", $file_name
-                       or die_error(undef, "Open git-ls-tree failed");
-               my $line = <$fd>;
-               close $fd;
-
-               #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
-               unless ($line && $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/) {
-                       die_error('404 Not Found', "File or directory for given base does not exist");
-               }
-               $type = $2;
-               $hash = $3;
-       } else {
-               die_error('404 Not Found', "Not enough information to find object");
-       }
-
-       print $cgi->redirect(-uri => href(action=>$type, -full=>1,
-                                         hash=>$hash, hash_base=>$hash_base,
-                                         file_name=>$file_name),
-                            -status => '302 Found');
-}
-
-sub git_blobdiff {
-       my $format = shift || 'html';
-
-       my $fd;
-       my @difftree;
-       my %diffinfo;
-       my $expires;
-
-       # preparing $fd and %diffinfo for git_patchset_body
-       # new style URI
-       if (defined $hash_base && defined $hash_parent_base) {
-               if (defined $file_name) {
-                       # read raw output
-                       open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
-                               $hash_parent_base, $hash_base,
-                               "--", (defined $file_parent ? $file_parent : ()), $file_name
-                               or die_error(undef, "Open git-diff-tree failed");
-                       @difftree = map { chomp; $_ } <$fd>;
-                       close $fd
-                               or die_error(undef, "Reading git-diff-tree failed");
-                       @difftree
-                               or die_error('404 Not Found', "Blob diff not found");
-
-               } elsif (defined $hash &&
-                        $hash =~ /[0-9a-fA-F]{40}/) {
-                       # try to find filename from $hash
-
-                       # read filtered raw output
-                       open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
-                               $hash_parent_base, $hash_base, "--"
-                               or die_error(undef, "Open git-diff-tree failed");
-                       @difftree =
-                               # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
-                               # $hash == to_id
-                               grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
-                               map { chomp; $_ } <$fd>;
-                       close $fd
-                               or die_error(undef, "Reading git-diff-tree failed");
-                       @difftree
-                               or die_error('404 Not Found', "Blob diff not found");
-
-               } else {
-                       die_error('404 Not Found', "Missing one of the blob diff parameters");
-               }
-
-               if (@difftree > 1) {
-                       die_error('404 Not Found', "Ambiguous blob diff specification");
-               }
-
-               %diffinfo = parse_difftree_raw_line($difftree[0]);
-               $file_parent ||= $diffinfo{'from_file'} || $file_name;
-               $file_name   ||= $diffinfo{'to_file'};
-
-               $hash_parent ||= $diffinfo{'from_id'};
-               $hash        ||= $diffinfo{'to_id'};
-
-               # non-textual hash id's can be cached
-               if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
-                   $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
-                       $expires = '+1d';
-               }
-
-               # open patch output
-               open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
-                       '-p', ($format eq 'html' ? "--full-index" : ()),
-                       $hash_parent_base, $hash_base,
-                       "--", (defined $file_parent ? $file_parent : ()), $file_name
-                       or die_error(undef, "Open git-diff-tree failed");
-       }
-
-       # old/legacy style URI -- not generated anymore since 1.4.3.
-       if (!%diffinfo) {
-               die_error('404 Not Found', "Missing one of the blob diff parameters")
-       }
-
-       # header
-       if ($format eq 'html') {
-               my $formats_nav =
-                       $cgi->a({-href => href(action=>"blobdiff_plain", -replay=>1)},
-                               "raw");
-               git_header_html(undef, $expires);
-               if (defined $hash_base && (my %co = parse_commit($hash_base))) {
-                       git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
-                       git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
-               } else {
-                       print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
-                       print "<div class=\"title\">$hash vs $hash_parent</div>\n";
-               }
-               if (defined $file_name) {
-                       git_print_page_path($file_name, "blob", $hash_base);
-               } else {
-                       print "<div class=\"page_path\"></div>\n";
-               }
-
-       } elsif ($format eq 'plain') {
-               print $cgi->header(
-                       -type => 'text/plain',
-                       -charset => 'utf-8',
-                       -expires => $expires,
-                       -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
-
-               print "X-Git-Url: " . $cgi->self_url() . "\n\n";
-
-       } else {
-               die_error(undef, "Unknown blobdiff format");
-       }
-
-       # patch
-       if ($format eq 'html') {
-               print "<div class=\"page_body\">\n";
-
-               git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
-               close $fd;
-
-               print "</div>\n"; # class="page_body"
-               git_footer_html();
-
-       } else {
-               while (my $line = <$fd>) {
-                       $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
-                       $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
-
-                       print $line;
-
-                       last if $line =~ m!^\+\+\+!;
-               }
-               local $/ = undef;
-               print <$fd>;
-               close $fd;
-       }
-}
-
-sub git_blobdiff_plain {
-       git_blobdiff('plain');
-}
-
-sub git_commitdiff {
-       my $format = shift || 'html';
-       $hash ||= $hash_base || "HEAD";
-       my %co = parse_commit($hash);
-       if (!%co) {
-               die_error(undef, "Unknown commit object");
-       }
-
-       # choose format for commitdiff for merge
-       if (! defined $hash_parent && @{$co{'parents'}} > 1) {
-               $hash_parent = '--cc';
-       }
-       # we need to prepare $formats_nav before almost any parameter munging
-       my $formats_nav;
-       if ($format eq 'html') {
-               $formats_nav =
-                       $cgi->a({-href => href(action=>"commitdiff_plain", -replay=>1)},
-                               "raw");
-
-               if (defined $hash_parent &&
-                   $hash_parent ne '-c' && $hash_parent ne '--cc') {
-                       # commitdiff with two commits given
-                       my $hash_parent_short = $hash_parent;
-                       if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
-                               $hash_parent_short = substr($hash_parent, 0, 7);
-                       }
-                       $formats_nav .=
-                               ' (from';
-                       for (my $i = 0; $i < @{$co{'parents'}}; $i++) {
-                               if ($co{'parents'}[$i] eq $hash_parent) {
-                                       $formats_nav .= ' parent ' . ($i+1);
-                                       last;
-                               }
-                       }
-                       $formats_nav .= ': ' .
-                               $cgi->a({-href => href(action=>"commitdiff",
-                                                      hash=>$hash_parent)},
-                                       esc_html($hash_parent_short)) .
-                               ')';
-               } elsif (!$co{'parent'}) {
-                       # --root commitdiff
-                       $formats_nav .= ' (initial)';
-               } elsif (scalar @{$co{'parents'}} == 1) {
-                       # single parent commit
-                       $formats_nav .=
-                               ' (parent: ' .
-                               $cgi->a({-href => href(action=>"commitdiff",
-                                                      hash=>$co{'parent'})},
-                                       esc_html(substr($co{'parent'}, 0, 7))) .
-                               ')';
-               } else {
-                       # merge commit
-                       if ($hash_parent eq '--cc') {
-                               $formats_nav .= ' | ' .
-                                       $cgi->a({-href => href(action=>"commitdiff",
-                                                              hash=>$hash, hash_parent=>'-c')},
-                                               'combined');
-                       } else { # $hash_parent eq '-c'
-                               $formats_nav .= ' | ' .
-                                       $cgi->a({-href => href(action=>"commitdiff",
-                                                              hash=>$hash, hash_parent=>'--cc')},
-                                               'compact');
-                       }
-                       $formats_nav .=
-                               ' (merge: ' .
-                               join(' ', map {
-                                       $cgi->a({-href => href(action=>"commitdiff",
-                                                              hash=>$_)},
-                                               esc_html(substr($_, 0, 7)));
-                               } @{$co{'parents'}} ) .
-                               ')';
-               }
-       }
-
-       my $hash_parent_param = $hash_parent;
-       if (!defined $hash_parent_param) {
-               # --cc for multiple parents, --root for parentless
-               $hash_parent_param =
-                       @{$co{'parents'}} > 1 ? '--cc' : $co{'parent'} || '--root';
-       }
-
-       # read commitdiff
-       my $fd;
-       my @difftree;
-       if ($format eq 'html') {
-               open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
-                       "--no-commit-id", "--patch-with-raw", "--full-index",
-                       $hash_parent_param, $hash, "--"
-                       or die_error(undef, "Open git-diff-tree failed");
-
-               while (my $line = <$fd>) {
-                       chomp $line;
-                       # empty line ends raw part of diff-tree output
-                       last unless $line;
-                       push @difftree, scalar parse_difftree_raw_line($line);
-               }
-
-       } elsif ($format eq 'plain') {
-               open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
-                       '-p', $hash_parent_param, $hash, "--"
-                       or die_error(undef, "Open git-diff-tree failed");
-
-       } else {
-               die_error(undef, "Unknown commitdiff format");
-       }
-
-       # non-textual hash id's can be cached
-       my $expires;
-       if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
-               $expires = "+1d";
-       }
-
-       # write commit message
-       if ($format eq 'html') {
-               my $refs = git_get_references();
-               my $ref = format_ref_marker($refs, $co{'id'});
-
-               git_header_html(undef, $expires);
-               git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
-               git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
-               git_print_authorship(\%co);
-               print "<div class=\"page_body\">\n";
-               if (@{$co{'comment'}} > 1) {
-                       print "<div class=\"log\">\n";
-                       git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
-                       print "</div>\n"; # class="log"
-               }
-
-       } elsif ($format eq 'plain') {
-               my $refs = git_get_references("tags");
-               my $tagname = git_get_rev_name_tags($hash);
-               my $filename = basename($project) . "-$hash.patch";
-
-               print $cgi->header(
-                       -type => 'text/plain',
-                       -charset => 'utf-8',
-                       -expires => $expires,
-                       -content_disposition => 'inline; filename="' . "$filename" . '"');
-               my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
-               print "From: " . to_utf8($co{'author'}) . "\n";
-               print "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n";
-               print "Subject: " . to_utf8($co{'title'}) . "\n";
-
-               print "X-Git-Tag: $tagname\n" if $tagname;
-               print "X-Git-Url: " . $cgi->self_url() . "\n\n";
-
-               foreach my $line (@{$co{'comment'}}) {
-                       print to_utf8($line) . "\n";
-               }
-               print "---\n\n";
-       }
-
-       # write patch
-       if ($format eq 'html') {
-               my $use_parents = !defined $hash_parent ||
-                       $hash_parent eq '-c' || $hash_parent eq '--cc';
-               git_difftree_body(\@difftree, $hash,
-                                 $use_parents ? @{$co{'parents'}} : $hash_parent);
-               print "<br/>\n";
-
-               git_patchset_body($fd, \@difftree, $hash,
-                                 $use_parents ? @{$co{'parents'}} : $hash_parent);
-               close $fd;
-               print "</div>\n"; # class="page_body"
-               git_footer_html();
-
-       } elsif ($format eq 'plain') {
-               local $/ = undef;
-               print <$fd>;
-               close $fd
-                       or print "Reading git-diff-tree failed\n";
-       }
-}
-
-sub git_commitdiff_plain {
-       git_commitdiff('plain');
-}
-
-sub git_history {
-       if (!defined $hash_base) {
-               $hash_base = git_get_head_hash($project);
-       }
-       if (!defined $page) {
-               $page = 0;
-       }
-       my $ftype;
-       my %co = parse_commit($hash_base);
-       if (!%co) {
-               die_error(undef, "Unknown commit object");
-       }
-
-       my $refs = git_get_references();
-       my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
-
-       my @commitlist = parse_commits($hash_base, 101, (100 * $page),
-                                      $file_name, "--full-history");
-       if (!@commitlist) {
-               die_error('404 Not Found', "No such file or directory on given branch");
-       }
-
-       if (!defined $hash && defined $file_name) {
-               # some commits could have deleted file in question,
-               # and not have it in tree, but one of them has to have it
-               for (my $i = 0; $i <= @commitlist; $i++) {
-                       $hash = git_get_hash_by_path($commitlist[$i]{'id'}, $file_name);
-                       last if defined $hash;
-               }
-       }
-       if (defined $hash) {
-               $ftype = git_get_type($hash);
-       }
-       if (!defined $ftype) {
-               die_error(undef, "Unknown type of object");
-       }
-
-       my $paging_nav = '';
-       if ($page > 0) {
-               $paging_nav .=
-                       $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
-                                              file_name=>$file_name)},
-                               "first");
-               $paging_nav .= " &sdot; " .
-                       $cgi->a({-href => href(-replay=>1, page=>$page-1),
-                                -accesskey => "p", -title => "Alt-p"}, "prev");
-       } else {
-               $paging_nav .= "first";
-               $paging_nav .= " &sdot; prev";
-       }
-       my $next_link = '';
-       if ($#commitlist >= 100) {
-               $next_link =
-                       $cgi->a({-href => href(-replay=>1, page=>$page+1),
-                                -accesskey => "n", -title => "Alt-n"}, "next");
-               $paging_nav .= " &sdot; $next_link";
-       } else {
-               $paging_nav .= " &sdot; next";
-       }
-
-       git_header_html();
-       git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
-       git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
-       git_print_page_path($file_name, $ftype, $hash_base);
-
-       git_history_body(\@commitlist, 0, 99,
-                        $refs, $hash_base, $ftype, $next_link);
-
-       git_footer_html();
-}
-
-sub git_search {
-       my ($have_search) = gitweb_check_feature('search');
-       if (!$have_search) {
-               die_error('403 Permission denied', "Permission denied");
-       }
-       if (!defined $searchtext) {
-               die_error(undef, "Text field empty");
-       }
-       if (!defined $hash) {
-               $hash = git_get_head_hash($project);
-       }
-       my %co = parse_commit($hash);
-       if (!%co) {
-               die_error(undef, "Unknown commit object");
-       }
-       if (!defined $page) {
-               $page = 0;
-       }
-
-       $searchtype ||= 'commit';
-       if ($searchtype eq 'pickaxe') {
-               # pickaxe may take all resources of your box and run for several minutes
-               # with every query - so decide by yourself how public you make this feature
-               my ($have_pickaxe) = gitweb_check_feature('pickaxe');
-               if (!$have_pickaxe) {
-                       die_error('403 Permission denied', "Permission denied");
-               }
-       }
-       if ($searchtype eq 'grep') {
-               my ($have_grep) = gitweb_check_feature('grep');
-               if (!$have_grep) {
-                       die_error('403 Permission denied', "Permission denied");
-               }
-       }
-
-       git_header_html();
-
-       if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
-               my $greptype;
-               if ($searchtype eq 'commit') {
-                       $greptype = "--grep=";
-               } elsif ($searchtype eq 'author') {
-                       $greptype = "--author=";
-               } elsif ($searchtype eq 'committer') {
-                       $greptype = "--committer=";
-               }
-               $greptype .= $searchtext;
-               my @commitlist = parse_commits($hash, 101, (100 * $page), undef,
-                                              $greptype, '--regexp-ignore-case',
-                                              $search_use_regexp ? '--extended-regexp' : '--fixed-strings');
-
-               my $paging_nav = '';
-               if ($page > 0) {
-                       $paging_nav .=
-                               $cgi->a({-href => href(action=>"search", hash=>$hash,
-                                                      searchtext=>$searchtext,
-                                                      searchtype=>$searchtype)},
-                                       "first");
-                       $paging_nav .= " &sdot; " .
-                               $cgi->a({-href => href(-replay=>1, page=>$page-1),
-                                        -accesskey => "p", -title => "Alt-p"}, "prev");
-               } else {
-                       $paging_nav .= "first";
-                       $paging_nav .= " &sdot; prev";
-               }
-               my $next_link = '';
-               if ($#commitlist >= 100) {
-                       $next_link =
-                               $cgi->a({-href => href(-replay=>1, page=>$page+1),
-                                        -accesskey => "n", -title => "Alt-n"}, "next");
-                       $paging_nav .= " &sdot; $next_link";
-               } else {
-                       $paging_nav .= " &sdot; next";
-               }
-
-               if ($#commitlist >= 100) {
-               }
-
-               git_print_page_nav('','', $hash,$co{'tree'},$hash, $paging_nav);
-               git_print_header_div('commit', esc_html($co{'title'}), $hash);
-               git_search_grep_body(\@commitlist, 0, 99, $next_link);
-       }
-
-       if ($searchtype eq 'pickaxe') {
-               git_print_page_nav('','', $hash,$co{'tree'},$hash);
-               git_print_header_div('commit', esc_html($co{'title'}), $hash);
-
-               print "<table class=\"pickaxe search\">\n";
-               my $alternate = 1;
-               $/ = "\n";
-               open my $fd, '-|', git_cmd(), '--no-pager', 'log', @diff_opts,
-                       '--pretty=format:%H', '--no-abbrev', '--raw', "-S$searchtext",
-                       ($search_use_regexp ? '--pickaxe-regex' : ());
-               undef %co;
-               my @files;
-               while (my $line = <$fd>) {
-                       chomp $line;
-                       next unless $line;
-
-                       my %set = parse_difftree_raw_line($line);
-                       if (defined $set{'commit'}) {
-                               # finish previous commit
-                               if (%co) {
-                                       print "</td>\n" .
-                                             "<td class=\"link\">" .
-                                             $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
-                                             " | " .
-                                             $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
-                                       print "</td>\n" .
-                                             "</tr>\n";
-                               }
-
-                               if ($alternate) {
-                                       print "<tr class=\"dark\">\n";
-                               } else {
-                                       print "<tr class=\"light\">\n";
-                               }
-                               $alternate ^= 1;
-                               %co = parse_commit($set{'commit'});
-                               my $author = chop_and_escape_str($co{'author_name'}, 15, 5);
-                               print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
-                                     "<td><i>$author</i></td>\n" .
-                                     "<td>" .
-                                     $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
-                                             -class => "list subject"},
-                                             chop_and_escape_str($co{'title'}, 50) . "<br/>");
-                       } elsif (defined $set{'to_id'}) {
-                               next if ($set{'to_id'} =~ m/^0{40}$/);
-
-                               print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
-                                                            hash=>$set{'to_id'}, file_name=>$set{'to_file'}),
-                                             -class => "list"},
-                                             "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
-                                     "<br/>\n";
-                       }
-               }
-               close $fd;
-
-               # finish last commit (warning: repetition!)
-               if (%co) {
-                       print "</td>\n" .
-                             "<td class=\"link\">" .
-                             $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
-                             " | " .
-                             $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
-                       print "</td>\n" .
-                             "</tr>\n";
-               }
-
-               print "</table>\n";
-       }
-
-       if ($searchtype eq 'grep') {
-               git_print_page_nav('','', $hash,$co{'tree'},$hash);
-               git_print_header_div('commit', esc_html($co{'title'}), $hash);
-
-               print "<table class=\"grep_search\">\n";
-               my $alternate = 1;
-               my $matches = 0;
-               $/ = "\n";
-               open my $fd, "-|", git_cmd(), 'grep', '-n',
-                       $search_use_regexp ? ('-E', '-i') : '-F',
-                       $searchtext, $co{'tree'};
-               my $lastfile = '';
-               while (my $line = <$fd>) {
-                       chomp $line;
-                       my ($file, $lno, $ltext, $binary);
-                       last if ($matches++ > 1000);
-                       if ($line =~ /^Binary file (.+) matches$/) {
-                               $file = $1;
-                               $binary = 1;
-                       } else {
-                               (undef, $file, $lno, $ltext) = split(/:/, $line, 4);
-                       }
-                       if ($file ne $lastfile) {
-                               $lastfile and print "</td></tr>\n";
-                               if ($alternate++) {
-                                       print "<tr class=\"dark\">\n";
-                               } else {
-                                       print "<tr class=\"light\">\n";
-                               }
-                               print "<td class=\"list\">".
-                                       $cgi->a({-href => href(action=>"blob", hash=>$co{'hash'},
-                                                              file_name=>"$file"),
-                                               -class => "list"}, esc_path($file));
-                               print "</td><td>\n";
-                               $lastfile = $file;
-                       }
-                       if ($binary) {
-                               print "<div class=\"binary\">Binary file</div>\n";
-                       } else {
-                               $ltext = untabify($ltext);
-                               if ($ltext =~ m/^(.*)($search_regexp)(.*)$/i) {
-                                       $ltext = esc_html($1, -nbsp=>1);
-                                       $ltext .= '<span class="match">';
-                                       $ltext .= esc_html($2, -nbsp=>1);
-                                       $ltext .= '</span>';
-                                       $ltext .= esc_html($3, -nbsp=>1);
-                               } else {
-                                       $ltext = esc_html($ltext, -nbsp=>1);
-                               }
-                               print "<div class=\"pre\">" .
-                                       $cgi->a({-href => href(action=>"blob", hash=>$co{'hash'},
-                                                              file_name=>"$file").'#l'.$lno,
-                                               -class => "linenr"}, sprintf('%4i', $lno))
-                                       . ' ' .  $ltext . "</div>\n";
-                       }
-               }
-               if ($lastfile) {
-                       print "</td></tr>\n";
-                       if ($matches > 1000) {
-                               print "<div class=\"diff nodifferences\">Too many matches, listing trimmed</div>\n";
-                       }
-               } else {
-                       print "<div class=\"diff nodifferences\">No matches found</div>\n";
-               }
-               close $fd;
-
-               print "</table>\n";
-       }
-       git_footer_html();
-}
-
-sub git_search_help {
-       git_header_html();
-       git_print_page_nav('','', $hash,$hash,$hash);
-       print <<EOT;
-<p><strong>Pattern</strong> is by default a normal string that is matched precisely (but without
-regard to case, except in the case of pickaxe). However, when you check the <em>re</em> checkbox,
-the pattern entered is recognized as the POSIX extended
-<a href="http://en.wikipedia.org/wiki/Regular_expression">regular expression</a> (also case
-insensitive).</p>
-<dl>
-<dt><b>commit</b></dt>
-<dd>The commit messages and authorship information will be scanned for the given pattern.</dd>
-EOT
-       my ($have_grep) = gitweb_check_feature('grep');
-       if ($have_grep) {
-               print <<EOT;
-<dt><b>grep</b></dt>
-<dd>All files in the currently selected tree (HEAD unless you are explicitly browsing
-    a different one) are searched for the given pattern. On large trees, this search can take
-a while and put some strain on the server, so please use it with some consideration. Note that
-due to git-grep peculiarity, currently if regexp mode is turned off, the matches are
-case-sensitive.</dd>
-EOT
-       }
-       print <<EOT;
-<dt><b>author</b></dt>
-<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given pattern.</dd>
-<dt><b>committer</b></dt>
-<dd>Name and e-mail of the committer and date of commit will be scanned for the given pattern.</dd>
-EOT
-       my ($have_pickaxe) = gitweb_check_feature('pickaxe');
-       if ($have_pickaxe) {
-               print <<EOT;
-<dt><b>pickaxe</b></dt>
-<dd>All commits that caused the string to appear or disappear from any file (changes that
-added, removed or "modified" the string) will be listed. This search can take a while and
-takes a lot of strain on the server, so please use it wisely. Note that since you may be
-interested even in changes just changing the case as well, this search is case sensitive.</dd>
-EOT
-       }
-       print "</dl>\n";
-       git_footer_html();
-}
-
-sub git_shortlog {
-       my $head = git_get_head_hash($project);
-       if (!defined $hash) {
-               $hash = $head;
-       }
-       if (!defined $page) {
-               $page = 0;
-       }
-       my $refs = git_get_references();
-
-       my @commitlist = parse_commits($hash, 101, (100 * $page));
-
-       my $paging_nav = format_paging_nav('shortlog', $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");
-       }
-
-       git_header_html();
-       git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
-       git_print_header_div('summary', $project);
-
-       git_shortlog_body(\@commitlist, 0, 99, $refs, $next_link);
-
-       git_footer_html();
-}
-
-## ......................................................................
-## feeds (RSS, Atom; OPML)
-
-sub git_feed {
-       my $format = shift || 'atom';
-       my ($have_blame) = gitweb_check_feature('blame');
-
-       # Atom: http://www.atomenabled.org/developers/syndication/
-       # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
-       if ($format ne 'rss' && $format ne 'atom') {
-               die_error(undef, "Unknown web feed format");
-       }
-
-       # log/feed of current (HEAD) branch, log of given branch, history of file/directory
-       my $head = $hash || 'HEAD';
-       my @commitlist = parse_commits($head, 150, 0, $file_name);
-
-       my %latest_commit;
-       my %latest_date;
-       my $content_type = "application/$format+xml";
-       if (defined $cgi->http('HTTP_ACCEPT') &&
-                $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
-               # browser (feed reader) prefers text/xml
-               $content_type = 'text/xml';
-       }
-       if (defined($commitlist[0])) {
-               %latest_commit = %{$commitlist[0]};
-               %latest_date   = parse_date($latest_commit{'author_epoch'});
-               print $cgi->header(
-                       -type => $content_type,
-                       -charset => 'utf-8',
-                       -last_modified => $latest_date{'rfc2822'});
-       } else {
-               print $cgi->header(
-                       -type => $content_type,
-                       -charset => 'utf-8');
-       }
-
-       # Optimization: skip generating the body if client asks only
-       # for Last-Modified date.
-       return if ($cgi->request_method() eq 'HEAD');
-
-       # header variables
-       my $title = "$site_name - $project/$action";
-       my $feed_type = 'log';
-       if (defined $hash) {
-               $title .= " - '$hash'";
-               $feed_type = 'branch log';
-               if (defined $file_name) {
-                       $title .= " :: $file_name";
-                       $feed_type = 'history';
-               }
-       } elsif (defined $file_name) {
-               $title .= " - $file_name";
-               $feed_type = 'history';
-       }
-       $title .= " $feed_type";
-       my $descr = git_get_project_description($project);
-       if (defined $descr) {
-               $descr = esc_html($descr);
-       } else {
-               $descr = "$project " .
-                        ($format eq 'rss' ? 'RSS' : 'Atom') .
-                        " feed";
-       }
-       my $owner = git_get_project_owner($project);
-       $owner = esc_html($owner);
-
-       #header
-       my $alt_url;
-       if (defined $file_name) {
-               $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
-       } elsif (defined $hash) {
-               $alt_url = href(-full=>1, action=>"log", hash=>$hash);
-       } else {
-               $alt_url = href(-full=>1, action=>"summary");
-       }
-       print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
-       if ($format eq 'rss') {
-               print <<XML;
-<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
-<channel>
-XML
-               print "<title>$title</title>\n" .
-                     "<link>$alt_url</link>\n" .
-                     "<description>$descr</description>\n" .
-                     "<language>en</language>\n";
-       } elsif ($format eq 'atom') {
-               print <<XML;
-<feed xmlns="http://www.w3.org/2005/Atom">
-XML
-               print "<title>$title</title>\n" .
-                     "<subtitle>$descr</subtitle>\n" .
-                     '<link rel="alternate" type="text/html" href="' .
-                     $alt_url . '" />' . "\n" .
-                     '<link rel="self" type="' . $content_type . '" href="' .
-                     $cgi->self_url() . '" />' . "\n" .
-                     "<id>" . href(-full=>1) . "</id>\n" .
-                     # use project owner for feed author
-                     "<author><name>$owner</name></author>\n";
-               if (defined $favicon) {
-                       print "<icon>" . esc_url($favicon) . "</icon>\n";
-               }
-               if (defined $logo_url) {
-                       # not twice as wide as tall: 72 x 27 pixels
-                       print "<logo>" . esc_url($logo) . "</logo>\n";
-               }
-               if (! %latest_date) {
-                       # dummy date to keep the feed valid until commits trickle in:
-                       print "<updated>1970-01-01T00:00:00Z</updated>\n";
-               } else {
-                       print "<updated>$latest_date{'iso-8601'}</updated>\n";
-               }
-       }
-
-       # contents
-       for (my $i = 0; $i <= $#commitlist; $i++) {
-               my %co = %{$commitlist[$i]};
-               my $commit = $co{'id'};
-               # we read 150, we always show 30 and the ones more recent than 48 hours
-               if (($i >= 20) && ((time - $co{'author_epoch'}) > 48*60*60)) {
-                       last;
-               }
-               my %cd = parse_date($co{'author_epoch'});
-
-               # get list of changed files
-               open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
-                       $co{'parent'} || "--root",
-                       $co{'id'}, "--", (defined $file_name ? $file_name : ())
-                       or next;
-               my @difftree = map { chomp; $_ } <$fd>;
-               close $fd
-                       or next;
-
-               # print element (entry, item)
-               my $co_url = href(-full=>1, action=>"commitdiff", hash=>$commit);
-               if ($format eq 'rss') {
-                       print "<item>\n" .
-                             "<title>" . esc_html($co{'title'}) . "</title>\n" .
-                             "<author>" . esc_html($co{'author'}) . "</author>\n" .
-                             "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
-                             "<guid isPermaLink=\"true\">$co_url</guid>\n" .
-                             "<link>$co_url</link>\n" .
-                             "<description>" . esc_html($co{'title'}) . "</description>\n" .
-                             "<content:encoded>" .
-                             "<![CDATA[\n";
-               } elsif ($format eq 'atom') {
-                       print "<entry>\n" .
-                             "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
-                             "<updated>$cd{'iso-8601'}</updated>\n" .
-                             "<author>\n" .
-                             "  <name>" . esc_html($co{'author_name'}) . "</name>\n";
-                       if ($co{'author_email'}) {
-                               print "  <email>" . esc_html($co{'author_email'}) . "</email>\n";
-                       }
-                       print "</author>\n" .
-                             # use committer for contributor
-                             "<contributor>\n" .
-                             "  <name>" . esc_html($co{'committer_name'}) . "</name>\n";
-                       if ($co{'committer_email'}) {
-                               print "  <email>" . esc_html($co{'committer_email'}) . "</email>\n";
-                       }
-                       print "</contributor>\n" .
-                             "<published>$cd{'iso-8601'}</published>\n" .
-                             "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
-                             "<id>$co_url</id>\n" .
-                             "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
-                             "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
-               }
-               my $comment = $co{'comment'};
-               print "<pre>\n";
-               foreach my $line (@$comment) {
-                       $line = esc_html($line);
-                       print "$line\n";
-               }
-               print "</pre><ul>\n";
-               foreach my $difftree_line (@difftree) {
-                       my %difftree = parse_difftree_raw_line($difftree_line);
-                       next if !$difftree{'from_id'};
-
-                       my $file = $difftree{'file'} || $difftree{'to_file'};
-
-                       print "<li>" .
-                             "[" .
-                             $cgi->a({-href => href(-full=>1, action=>"blobdiff",
-                                                    hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
-                                                    hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
-                                                    file_name=>$file, file_parent=>$difftree{'from_file'}),
-                                     -title => "diff"}, 'D');
-                       if ($have_blame) {
-                               print $cgi->a({-href => href(-full=>1, action=>"blame",
-                                                            file_name=>$file, hash_base=>$commit),
-                                             -title => "blame"}, 'B');
-                       }
-                       # if this is not a feed of a file history
-                       if (!defined $file_name || $file_name ne $file) {
-                               print $cgi->a({-href => href(-full=>1, action=>"history",
-                                                            file_name=>$file, hash=>$commit),
-                                             -title => "history"}, 'H');
-                       }
-                       $file = esc_path($file);
-                       print "] ".
-                             "$file</li>\n";
-               }
-               if ($format eq 'rss') {
-                       print "</ul>]]>\n" .
-                             "</content:encoded>\n" .
-                             "</item>\n";
-               } elsif ($format eq 'atom') {
-                       print "</ul>\n</div>\n" .
-                             "</content>\n" .
-                             "</entry>\n";
-               }
-       }
-
-       # end of feed
-       if ($format eq 'rss') {
-               print "</channel>\n</rss>\n";
-       }       elsif ($format eq 'atom') {
-               print "</feed>\n";
-       }
-}
-
-sub git_rss {
-       git_feed('rss');
-}
-
-sub git_atom {
-       git_feed('atom');
-}
-
-sub git_opml {
-       my @list = git_get_projects_list();
-
-       print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
-       print <<XML;
-<?xml version="1.0" encoding="utf-8"?>
-<opml version="1.0">
-<head>
-  <title>$site_name OPML Export</title>
-</head>
-<body>
-<outline text="git RSS feeds">
-XML
-
-       foreach my $pr (@list) {
-               my %proj = %$pr;
-               my $head = git_get_head_hash($proj{'path'});
-               if (!defined $head) {
-                       next;
-               }
-               $git_dir = "$projectroot/$proj{'path'}";
-               my %co = parse_commit($head);
-               if (!%co) {
-                       next;
-               }
-
-               my $path = esc_html(chop_str($proj{'path'}, 25, 5));
-               my $rss  = "$my_url?p=$proj{'path'};a=rss";
-               my $html = "$my_url?p=$proj{'path'};a=summary";
-               print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
-       }
-       print <<XML;
-</outline>
-</body>
-</opml>
-XML
-}