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-rwxr-xr-xthird_party/git/gitweb/gitweb.perl8483
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-#!/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 5.008;
-use strict;
-use warnings;
-# handle ACL in file access tests
-use filetest 'access';
-use CGI qw(:standard :escapeHTML -nosticky);
-use CGI::Util qw(unescape);
-use CGI::Carp qw(fatalsToBrowser set_message);
-use Encode;
-use Fcntl ':mode';
-use File::Find qw();
-use File::Basename qw(basename);
-use Time::HiRes qw(gettimeofday tv_interval);
-use Digest::MD5 qw(md5_hex);
-
-binmode STDOUT, ':utf8';
-
-if (!defined($CGI::VERSION) || $CGI::VERSION < 4.08) {
-	eval 'sub CGI::multi_param { CGI::param(@_) }'
-}
-
-our $t0 = [ gettimeofday() ];
-our $number_of_git_cmds = 0;
-
-BEGIN {
-	CGI->compile() if $ENV{'MOD_PERL'};
-}
-
-our $version = "++GIT_VERSION++";
-
-our ($my_url, $my_uri, $base_url, $path_info, $home_link);
-sub evaluate_uri {
-	our $cgi;
-
-	our $my_url = $cgi->url();
-	our $my_uri = $cgi->url(-absolute => 1);
-
-	# Base URL for relative URLs in gitweb ($logo, $favicon, ...),
-	# needed and used only for URLs with nonempty PATH_INFO
-	our $base_url = $my_url;
-
-	# When the script is used as DirectoryIndex, the URL does not contain the name
-	# of the script file itself, and $cgi->url() fails to strip PATH_INFO, so we
-	# have to do it ourselves. We make $path_info global because it's also used
-	# later on.
-	#
-	# Another issue with the script being the DirectoryIndex is that the resulting
-	# $my_url data is not the full script URL: this is good, because we want
-	# generated links to keep implying the script name if it wasn't explicitly
-	# indicated in the URL we're handling, but it means that $my_url cannot be used
-	# as base URL.
-	# Therefore, if we needed to strip PATH_INFO, then we know that we have
-	# to build the base URL ourselves:
-	our $path_info = decode_utf8($ENV{"PATH_INFO"});
-	if ($path_info) {
-		# $path_info has already been URL-decoded by the web server, but
-		# $my_url and $my_uri have not. URL-decode them so we can properly
-		# strip $path_info.
-		$my_url = unescape($my_url);
-		$my_uri = unescape($my_uri);
-		if ($my_url =~ s,\Q$path_info\E$,, &&
-		    $my_uri =~ s,\Q$path_info\E$,, &&
-		    defined $ENV{'SCRIPT_NAME'}) {
-			$base_url = $cgi->url(-base => 1) . $ENV{'SCRIPT_NAME'};
-		}
-	}
-
-	# target of the home link on top of all pages
-	our $home_link = $my_uri || "/";
-}
-
-# core git executable to use
-# this can just be "git" if your webserver has a sensible PATH
-our $GIT = "++GIT_BINDIR++/git";
-
-# absolute fs-path which will be prepended to the project path
-#our $projectroot = "/pub/scm";
-our $projectroot = "++GITWEB_PROJECTROOT++";
-
-# fs traversing limit for getting project list
-# the number is relative to the projectroot
-our $project_maxdepth = "++GITWEB_PROJECT_MAXDEPTH++";
-
-# string of the home link on top of all pages
-our $home_link_str = "++GITWEB_HOME_LINK_STR++";
-
-# extra breadcrumbs preceding the home link
-our @extra_breadcrumbs = ();
-
-# name of your site or organization to appear in page titles
-# replace this with something more descriptive for clearer bookmarks
-our $site_name = "++GITWEB_SITENAME++"
-                 || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
-
-# html snippet to include in the <head> section of each page
-our $site_html_head_string = "++GITWEB_SITE_HTML_HEAD_STRING++";
-# filename of html text to include at top of each page
-our $site_header = "++GITWEB_SITE_HEADER++";
-# html text to include at home page
-our $home_text = "++GITWEB_HOMETEXT++";
-# filename of html text to include at bottom of each page
-our $site_footer = "++GITWEB_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 = "++GITWEB_LOGO++";
-# URI of GIT favicon, assumed to be image/png type
-our $favicon = "++GITWEB_FAVICON++";
-# URI of gitweb.js (JavaScript code for gitweb)
-our $javascript = "++GITWEB_JS++";
-
-# 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 = "http://git-scm.com/";
-our $logo_label = "git homepage";
-
-# source of projects list
-our $projects_list = "++GITWEB_LIST++";
-
-# the width (in characters) of the projects list "Description" column
-our $projects_list_description_width = 25;
-
-# group projects by category on the projects list
-# (enabled if this variable evaluates to true)
-our $projects_list_group_categories = 0;
-
-# default category if none specified
-# (leave the empty string for no category)
-our $project_list_default_category = "";
-
-# 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 = "++GITWEB_EXPORT_OK++";
-
-# don't generate age column on the projects list page
-our $omit_age_column = 0;
-
-# don't generate information about owners of repositories
-our $omit_owner=0;
-
-# show repository only if this subroutine returns true
-# when given the path to the project, for example:
-#    sub { return -e "$_[0]/git-daemon-export-ok"; }
-our $export_auth_hook = undef;
-
-# only allow viewing of repositories also shown on the overview page
-our $strict_export = "++GITWEB_STRICT_EXPORT++";
-
-# list of git base URLs used for URL to where fetch project from,
-# i.e. full URL is "$git_base_url/$project"
-our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
-
-# 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
-
-# Disables features that would allow repository owners to inject script into
-# the gitweb domain.
-our $prevent_xss = 0;
-
-# Path to the highlight executable to use (must be the one from
-# http://www.andre-simon.de due to assumptions about parameters and output).
-# Useful if highlight is not installed on your webserver's PATH.
-# [Default: highlight]
-our $highlight_bin = "++HIGHLIGHT_BIN++";
-
-# 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)
-	# 	'disabled' => boolean (optional)}
-	#
-	'tgz' => {
-		'display' => 'tar.gz',
-		'type' => 'application/x-gzip',
-		'suffix' => '.tar.gz',
-		'format' => 'tar',
-		'compressor' => ['gzip', '-n']},
-
-	'tbz2' => {
-		'display' => 'tar.bz2',
-		'type' => 'application/x-bzip2',
-		'suffix' => '.tar.bz2',
-		'format' => 'tar',
-		'compressor' => ['bzip2']},
-
-	'txz' => {
-		'display' => 'tar.xz',
-		'type' => 'application/x-xz',
-		'suffix' => '.tar.xz',
-		'format' => 'tar',
-		'compressor' => ['xz'],
-		'disabled' => 1},
-
-	'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',
-	'xz'    => 'txz',
-
-	# backward compatibility: legacy gitweb config support
-	'x-gzip' => undef, 'gz' => undef,
-	'x-bzip2' => undef, 'bz2' => undef,
-	'x-zip' => undef, '' => undef,
-);
-
-# Pixel sizes for icons and avatars. If the default font sizes or lineheights
-# are changed, it may be appropriate to change these values too via
-# $GITWEB_CONFIG.
-our %avatar_size = (
-	'default' => 16,
-	'double'  => 32
-);
-
-# Used to set the maximum load that we will still respond to gitweb queries.
-# If server load exceed this value then return "503 server busy" error.
-# If gitweb cannot determined server load, it is taken to be 0.
-# Leave it undefined (or set to 'undef') to turn off load checking.
-our $maxload = 300;
-
-# configuration for 'highlight' (http://www.andre-simon.de/)
-# match by basename
-our %highlight_basename = (
-	#'Program' => 'py',
-	#'Library' => 'py',
-	'SConstruct' => 'py', # SCons equivalent of Makefile
-	'Makefile' => 'make',
-);
-# match by extension
-our %highlight_ext = (
-	# main extensions, defining name of syntax;
-	# see files in /usr/share/highlight/langDefs/ directory
-	(map { $_ => $_ } qw(py rb java css js tex bib xml awk bat ini spec tcl sql)),
-	# alternate extensions, see /etc/highlight/filetypes.conf
-	(map { $_ => 'c'   } qw(c h)),
-	(map { $_ => 'sh'  } qw(sh bash zsh ksh)),
-	(map { $_ => 'cpp' } qw(cpp cxx c++ cc)),
-	(map { $_ => 'php' } qw(php php3 php4 php5 phps)),
-	(map { $_ => 'pl'  } qw(pl perl pm)), # perhaps also 'cgi'
-	(map { $_ => 'make'} qw(make mak mk)),
-	(map { $_ => 'xml' } qw(xml xhtml html htm)),
-);
-
-# 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
-	# overridden
-	#
-	# use gitweb_get_feature(<feature>) to retrieve the <feature> value
-	# (an array) or 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' => sub { feature_bool('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.
-	#
-	# Note that this controls all search features, which means that if
-	# it is disabled, then 'grep' and 'pickaxe' search would also be
-	# disabled.
-	'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.
-	# Note that you need to have 'search' feature enabled too.
-
-	# 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' => {
-		'sub' => sub { feature_bool('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.
-	# Note that you need to have 'search' feature enabled too.
-
-	# 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' => sub { feature_bool('pickaxe', @_) },
-		'override' => 0,
-		'default' => [1]},
-
-	# Enable showing size of blobs in a 'tree' view, in a separate
-	# column, similar to what 'ls -l' does.  This cost a bit of IO.
-
-	# To disable system wide have in $GITWEB_CONFIG
-	# $feature{'show-sizes'}{'default'} = [0];
-	# To have project specific config enable override in $GITWEB_CONFIG
-	# $feature{'show-sizes'}{'override'} = 1;
-	# and in project config gitweb.showsizes = 0|1;
-	'show-sizes' => {
-		'sub' => sub { feature_bool('showsizes', @_) },
-		'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]},
-
-	# Insert custom links to the action bar of all project pages.
-	# This enables you mainly to link to third-party scripts integrating
-	# into gitweb; e.g. git-browser for graphical history representation
-	# or custom web-based repository administration interface.
-
-	# The 'default' value consists of a list of triplets in the form
-	# (label, link, position) where position is the label after which
-	# to insert the link and link is a format string where %n expands
-	# to the project name, %f to the project path within the filesystem,
-	# %h to the current hash (h gitweb parameter) and %b to the current
-	# hash base (hb gitweb parameter); %% expands to %.
-
-	# To enable system wide have in $GITWEB_CONFIG e.g.
-	# $feature{'actions'}{'default'} = [('graphiclog',
-	# 	'/git-browser/by-commit.html?r=%n', 'summary')];
-	# Project specific override is not supported.
-	'actions' => {
-		'override' => 0,
-		'default' => []},
-
-	# Allow gitweb scan project content tags of project repository,
-	# and display the popular Web 2.0-ish "tag cloud" near the projects
-	# list.  Note that this is something COMPLETELY different from the
-	# normal Git tags.
-
-	# gitweb by itself can show existing tags, but it does not handle
-	# tagging itself; you need to do it externally, outside gitweb.
-	# The format is described in git_get_project_ctags() subroutine.
-	# You may want to install the HTML::TagCloud Perl module to get
-	# a pretty tag cloud instead of just a list of tags.
-
-	# To enable system wide have in $GITWEB_CONFIG
-	# $feature{'ctags'}{'default'} = [1];
-	# Project specific override is not supported.
-
-	# In the future whether ctags editing is enabled might depend
-	# on the value, but using 1 should always mean no editing of ctags.
-	'ctags' => {
-		'override' => 0,
-		'default' => [0]},
-
-	# The maximum number of patches in a patchset generated in patch
-	# view. Set this to 0 or undef to disable patch view, or to a
-	# negative number to remove any limit.
-
-	# To disable system wide have in $GITWEB_CONFIG
-	# $feature{'patches'}{'default'} = [0];
-	# To have project specific config enable override in $GITWEB_CONFIG
-	# $feature{'patches'}{'override'} = 1;
-	# and in project config gitweb.patches = 0|n;
-	# where n is the maximum number of patches allowed in a patchset.
-	'patches' => {
-		'sub' => \&feature_patches,
-		'override' => 0,
-		'default' => [16]},
-
-	# Avatar support. When this feature is enabled, views such as
-	# shortlog or commit will display an avatar associated with
-	# the email of the committer(s) and/or author(s).
-
-	# Currently available providers are gravatar and picon.
-	# If an unknown provider is specified, the feature is disabled.
-
-	# Picon currently relies on the indiana.edu database.
-
-	# To enable system wide have in $GITWEB_CONFIG
-	# $feature{'avatar'}{'default'} = ['<provider>'];
-	# where <provider> is either gravatar or picon.
-	# To have project specific config enable override in $GITWEB_CONFIG
-	# $feature{'avatar'}{'override'} = 1;
-	# and in project config gitweb.avatar = <provider>;
-	'avatar' => {
-		'sub' => \&feature_avatar,
-		'override' => 0,
-		'default' => ['']},
-
-	# Enable displaying how much time and how many git commands
-	# it took to generate and display page.  Disabled by default.
-	# Project specific override is not supported.
-	'timed' => {
-		'override' => 0,
-		'default' => [0]},
-
-	# Enable turning some links into links to actions which require
-	# JavaScript to run (like 'blame_incremental').  Not enabled by
-	# default.  Project specific override is currently not supported.
-	'javascript-actions' => {
-		'override' => 0,
-		'default' => [0]},
-
-	# Enable and configure ability to change common timezone for dates
-	# in gitweb output via JavaScript.  Enabled by default.
-	# Project specific override is not supported.
-	'javascript-timezone' => {
-		'override' => 0,
-		'default' => [
-			'local',     # default timezone: 'utc', 'local', or '(-|+)HHMM' format,
-			             # or undef to turn off this feature
-			'gitweb_tz', # name of cookie where to store selected timezone
-			'datetime',  # CSS class used to mark up dates for manipulation
-		]},
-
-	# Syntax highlighting support. This is based on Daniel Svensson's
-	# and Sham Chukoury's work in gitweb-xmms2.git.
-	# It requires the 'highlight' program present in $PATH,
-	# and therefore is disabled by default.
-
-	# To enable system wide have in $GITWEB_CONFIG
-	# $feature{'highlight'}{'default'} = [1];
-
-	'highlight' => {
-		'sub' => sub { feature_bool('highlight', @_) },
-		'override' => 0,
-		'default' => [0]},
-
-	# Enable displaying of remote heads in the heads list
-
-	# To enable system wide have in $GITWEB_CONFIG
-	# $feature{'remote_heads'}{'default'} = [1];
-	# To have project specific config enable override in $GITWEB_CONFIG
-	# $feature{'remote_heads'}{'override'} = 1;
-	# and in project config gitweb.remoteheads = 0|1;
-	'remote_heads' => {
-		'sub' => sub { feature_bool('remote_heads', @_) },
-		'override' => 0,
-		'default' => [0]},
-
-	# Enable showing branches under other refs in addition to heads
-
-	# To set system wide extra branch refs have in $GITWEB_CONFIG
-	# $feature{'extra-branch-refs'}{'default'} = ['dirs', 'of', 'choice'];
-	# To have project specific config enable override in $GITWEB_CONFIG
-	# $feature{'extra-branch-refs'}{'override'} = 1;
-	# and in project config gitweb.extrabranchrefs = dirs of choice
-	# Every directory is separated with whitespace.
-
-	'extra-branch-refs' => {
-		'sub' => \&feature_extra_branch_refs,
-		'override' => 0,
-		'default' => []},
-);
-
-sub gitweb_get_feature {
-	my ($name) = @_;
-	return unless exists $feature{$name};
-	my ($sub, $override, @defaults) = (
-		$feature{$name}{'sub'},
-		$feature{$name}{'override'},
-		@{$feature{$name}{'default'}});
-	# project specific override is possible only if we have project
-	our $git_dir; # global variable, declared later
-	if (!$override || !defined $git_dir) {
-		return @defaults;
-	}
-	if (!defined $sub) {
-		warn "feature $name is not overridable";
-		return @defaults;
-	}
-	return $sub->(@defaults);
-}
-
-# A wrapper to check if a given feature is enabled.
-# With this, you can say
-#
-#   my $bool_feat = gitweb_check_feature('bool_feat');
-#   gitweb_check_feature('bool_feat') or somecode;
-#
-# instead of
-#
-#   my ($bool_feat) = gitweb_get_feature('bool_feat');
-#   (gitweb_get_feature('bool_feat'))[0] or somecode;
-#
-sub gitweb_check_feature {
-	return (gitweb_get_feature(@_))[0];
-}
-
-
-sub feature_bool {
-	my $key = shift;
-	my ($val) = git_get_project_config($key, '--bool');
-
-	if (!defined $val) {
-		return ($_[0]);
-	} elsif ($val eq 'true') {
-		return (1);
-	} elsif ($val eq 'false') {
-		return (0);
-	}
-}
-
-sub feature_snapshot {
-	my (@fmts) = @_;
-
-	my ($val) = git_get_project_config('snapshot');
-
-	if ($val) {
-		@fmts = ($val eq 'none' ? () : split /\s*[,\s]\s*/, $val);
-	}
-
-	return @fmts;
-}
-
-sub feature_patches {
-	my @val = (git_get_project_config('patches', '--int'));
-
-	if (@val) {
-		return @val;
-	}
-
-	return ($_[0]);
-}
-
-sub feature_avatar {
-	my @val = (git_get_project_config('avatar'));
-
-	return @val ? @val : @_;
-}
-
-sub feature_extra_branch_refs {
-	my (@branch_refs) = @_;
-	my $values = git_get_project_config('extrabranchrefs');
-
-	if ($values) {
-		$values = config_to_multi ($values);
-		@branch_refs = ();
-		foreach my $value (@{$values}) {
-			push @branch_refs, split /\s+/, $value;
-		}
-	}
-
-	return @branch_refs;
-}
-
-# checking HEAD file with -e is fragile if the repository was
-# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
-# and then pruned.
-sub check_head_link {
-	my ($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/$export_ok") &&
-		(!$export_auth_hook || $export_auth_hook->($dir)));
-}
-
-# 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 $known_snapshot_formats{$_} &&
-		!$known_snapshot_formats{$_}{'disabled'}} @fmts;
-}
-
-sub filter_and_validate_refs {
-	my @refs = @_;
-	my %unique_refs = ();
-
-	foreach my $ref (@refs) {
-		die_error(500, "Invalid ref '$ref' in 'extra-branch-refs' feature") unless (is_valid_ref_format($ref));
-		# 'heads' are added implicitly in get_branch_refs().
-		$unique_refs{$ref} = 1 if ($ref ne 'heads');
-	}
-	return sort keys %unique_refs;
-}
-
-# If it is set to code reference, it is code that it is to be run once per
-# request, allowing updating configurations that change with each request,
-# while running other code in config file only once.
-#
-# Otherwise, if it is false then gitweb would process config file only once;
-# if it is true then gitweb config would be run for each request.
-our $per_request_config = 1;
-
-# read and parse gitweb config file given by its parameter.
-# returns true on success, false on recoverable error, allowing
-# to chain this subroutine, using first file that exists.
-# dies on errors during parsing config file, as it is unrecoverable.
-sub read_config_file {
-	my $filename = shift;
-	return unless defined $filename;
-	# die if there are errors parsing config file
-	if (-e $filename) {
-		do $filename;
-		die $@ if $@;
-		return 1;
-	}
-	return;
-}
-
-our ($GITWEB_CONFIG, $GITWEB_CONFIG_SYSTEM, $GITWEB_CONFIG_COMMON);
-sub evaluate_gitweb_config {
-	our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
-	our $GITWEB_CONFIG_SYSTEM = $ENV{'GITWEB_CONFIG_SYSTEM'} || "++GITWEB_CONFIG_SYSTEM++";
-	our $GITWEB_CONFIG_COMMON = $ENV{'GITWEB_CONFIG_COMMON'} || "++GITWEB_CONFIG_COMMON++";
-
-	# Protect against duplications of file names, to not read config twice.
-	# Only one of $GITWEB_CONFIG and $GITWEB_CONFIG_SYSTEM is used, so
-	# there possibility of duplication of filename there doesn't matter.
-	$GITWEB_CONFIG = ""        if ($GITWEB_CONFIG eq $GITWEB_CONFIG_COMMON);
-	$GITWEB_CONFIG_SYSTEM = "" if ($GITWEB_CONFIG_SYSTEM eq $GITWEB_CONFIG_COMMON);
-
-	# Common system-wide settings for convenience.
-	# Those settings can be overridden by GITWEB_CONFIG or GITWEB_CONFIG_SYSTEM.
-	read_config_file($GITWEB_CONFIG_COMMON);
-
-	# Use first config file that exists.  This means use the per-instance
-	# GITWEB_CONFIG if exists, otherwise use GITWEB_SYSTEM_CONFIG.
-	read_config_file($GITWEB_CONFIG) and return;
-	read_config_file($GITWEB_CONFIG_SYSTEM);
-}
-
-# Get loadavg of system, to compare against $maxload.
-# Currently it requires '/proc/loadavg' present to get loadavg;
-# if it is not present it returns 0, which means no load checking.
-sub get_loadavg {
-	if( -e '/proc/loadavg' ){
-		open my $fd, '<', '/proc/loadavg'
-			or return 0;
-		my @load = split(/\s+/, scalar <$fd>);
-		close $fd;
-
-		# The first three columns measure CPU and IO utilization of the last one,
-		# five, and 10 minute periods.  The fourth column shows the number of
-		# currently running processes and the total number of processes in the m/n
-		# format.  The last column displays the last process ID used.
-		return $load[0] || 0;
-	}
-	# additional checks for load average should go here for things that don't export
-	# /proc/loadavg
-
-	return 0;
-}
-
-# version of the core git binary
-our $git_version;
-sub evaluate_git_version {
-	our $git_version = qx("$GIT" --version) =~ m/git version (.*)$/ ? $1 : "unknown";
-	$number_of_git_cmds++;
-}
-
-sub check_loadavg {
-	if (defined $maxload && get_loadavg() > $maxload) {
-		die_error(503, "The load average on the server is too high");
-	}
-}
-
-# ======================================================================
-# input validation and dispatch
-
-# Various hash size-related values.
-my $sha1_len = 40;
-my $sha256_extra_len = 24;
-my $sha256_len = $sha1_len + $sha256_extra_len;
-
-# A regex matching $len hex characters. $len may be a range (e.g. 7,64).
-sub oid_nlen_regex {
-	my $len = shift;
-	my $hchr = qr/[0-9a-fA-F]/;
-	return qr/(?:(?:$hchr){$len})/;
-}
-
-# A regex matching two sets of $nlen hex characters, prefixed by the literal
-# string $prefix and with the literal string $infix between them.
-sub oid_nlen_prefix_infix_regex {
-	my $nlen = shift;
-	my $prefix = shift;
-	my $infix = shift;
-
-	my $rx = oid_nlen_regex($nlen);
-
-	return qr/^\Q$prefix\E$rx\Q$infix\E$rx$/;
-}
-
-# A regex matching a valid object ID.
-our $oid_regex;
-{
-	my $x = oid_nlen_regex($sha1_len);
-	my $y = oid_nlen_regex($sha256_extra_len);
-	$oid_regex = qr/(?:$x(?:$y)?)/;
-}
-
-# input parameters can be collected from a variety of sources (presently, CGI
-# and PATH_INFO), so we define an %input_params hash that collects them all
-# together during validation: this allows subsequent uses (e.g. href()) to be
-# agnostic of the parameter origin
-
-our %input_params = ();
-
-# input parameters are stored with the long parameter name as key. This will
-# also be used in the href subroutine to convert parameters to their CGI
-# equivalent, and since the href() usage is the most frequent one, we store
-# the name -> CGI key mapping here, instead of the reverse.
-#
-# XXX: Warning: If you touch this, check the search form for updating,
-# too.
-
-our @cgi_param_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",
-	ctag => "by_tag",
-	diff_style => "ds",
-	project_filter => "pf",
-	# this must be last entry (for manipulation from JavaScript)
-	javascript => "js"
-);
-our %cgi_param_mapping = @cgi_param_mapping;
-
-# we will also need to know the possible actions, for validation
-our %actions = (
-	"blame" => \&git_blame,
-	"blame_incremental" => \&git_blame_incremental,
-	"blame_data" => \&git_blame_data,
-	"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,
-	"patch" => \&git_patch,
-	"patches" => \&git_patches,
-	"remotes" => \&git_remotes,
-	"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,
-);
-
-# finally, we have the hash of allowed extra_options for the commands that
-# allow them
-our %allowed_options = (
-	"--no-merges" => [ qw(rss atom log shortlog history) ],
-);
-
-# fill %input_params with the CGI parameters. All values except for 'opt'
-# should be single values, but opt can be an array. We should probably
-# build an array of parameters that can be multi-valued, but since for the time
-# being it's only this one, we just single it out
-sub evaluate_query_params {
-	our $cgi;
-
-	while (my ($name, $symbol) = each %cgi_param_mapping) {
-		if ($symbol eq 'opt') {
-			$input_params{$name} = [ map { decode_utf8($_) } $cgi->multi_param($symbol) ];
-		} else {
-			$input_params{$name} = decode_utf8($cgi->param($symbol));
-		}
-	}
-}
-
-# now read PATH_INFO and update the parameter list for missing parameters
-sub evaluate_path_info {
-	return if defined $input_params{'project'};
-	return if !$path_info;
-	$path_info =~ s,^/+,,;
-	return if !$path_info;
-
-	# find which part of PATH_INFO is project
-	my $project = $path_info;
-	$project =~ s,/+$,,;
-	while ($project && !check_head_link("$projectroot/$project")) {
-		$project =~ s,/*[^/]*$,,;
-	}
-	return unless $project;
-	$input_params{'project'} = $project;
-
-	# do not change any parameters if an action is given using the query string
-	return if $input_params{'action'};
-	$path_info =~ s,^\Q$project\E/*,,;
-
-	# next, check if we have an action
-	my $action = $path_info;
-	$action =~ s,/.*$,,;
-	if (exists $actions{$action}) {
-		$path_info =~ s,^$action/*,,;
-		$input_params{'action'} = $action;
-	}
-
-	# list of actions that want hash_base instead of hash, but can have no
-	# pathname (f) parameter
-	my @wants_base = (
-		'tree',
-		'history',
-	);
-
-	# we want to catch, among others
-	# [$hash_parent_base[:$file_parent]..]$hash_parent[:$file_name]
-	my ($parentrefname, $parentpathname, $refname, $pathname) =
-		($path_info =~ /^(?:(.+?)(?::(.+))?\.\.)?([^:]+?)?(?::(.+))?$/);
-
-	# first, analyze the 'current' part
-	if (defined $pathname) {
-		# we got "branch:filename" or "branch:dir/"
-		# we could use git_get_type(branch:pathname), but:
-		# - it needs $git_dir
-		# - it does a git() call
-		# - the convention of terminating directories with a slash
-		#   makes it superfluous
-		# - embedding the action in the PATH_INFO would make it even
-		#   more superfluous
-		$pathname =~ s,^/+,,;
-		if (!$pathname || substr($pathname, -1) eq "/") {
-			$input_params{'action'} ||= "tree";
-			$pathname =~ s,/$,,;
-		} else {
-			# the default action depends on whether we had parent info
-			# or not
-			if ($parentrefname) {
-				$input_params{'action'} ||= "blobdiff_plain";
-			} else {
-				$input_params{'action'} ||= "blob_plain";
-			}
-		}
-		$input_params{'hash_base'} ||= $refname;
-		$input_params{'file_name'} ||= $pathname;
-	} elsif (defined $refname) {
-		# we got "branch". In this case we have to choose if we have to
-		# set hash or hash_base.
-		#
-		# Most of the actions without a pathname only want hash to be
-		# set, except for the ones specified in @wants_base that want
-		# hash_base instead. It should also be noted that hand-crafted
-		# links having 'history' as an action and no pathname or hash
-		# set will fail, but that happens regardless of PATH_INFO.
-		if (defined $parentrefname) {
-			# if there is parent let the default be 'shortlog' action
-			# (for http://git.example.com/repo.git/A..B links); if there
-			# is no parent, dispatch will detect type of object and set
-			# action appropriately if required (if action is not set)
-			$input_params{'action'} ||= "shortlog";
-		}
-		if ($input_params{'action'} &&
-		    grep { $_ eq $input_params{'action'} } @wants_base) {
-			$input_params{'hash_base'} ||= $refname;
-		} else {
-			$input_params{'hash'} ||= $refname;
-		}
-	}
-
-	# next, handle the 'parent' part, if present
-	if (defined $parentrefname) {
-		# a missing pathspec defaults to the 'current' filename, allowing e.g.
-		# someproject/blobdiff/oldrev..newrev:/filename
-		if ($parentpathname) {
-			$parentpathname =~ s,^/+,,;
-			$parentpathname =~ s,/$,,;
-			$input_params{'file_parent'} ||= $parentpathname;
-		} else {
-			$input_params{'file_parent'} ||= $input_params{'file_name'};
-		}
-		# we assume that hash_parent_base is wanted if a path was specified,
-		# or if the action wants hash_base instead of hash
-		if (defined $input_params{'file_parent'} ||
-			grep { $_ eq $input_params{'action'} } @wants_base) {
-			$input_params{'hash_parent_base'} ||= $parentrefname;
-		} else {
-			$input_params{'hash_parent'} ||= $parentrefname;
-		}
-	}
-
-	# for the snapshot action, we allow URLs in the form
-	# $project/snapshot/$hash.ext
-	# where .ext determines the snapshot and gets removed from the
-	# passed $refname to provide the $hash.
-	#
-	# To be able to tell that $refname includes the format extension, we
-	# require the following two conditions to be satisfied:
-	# - the hash input parameter MUST have been set from the $refname part
-	#   of the URL (i.e. they must be equal)
-	# - the snapshot format MUST NOT have been defined already (e.g. from
-	#   CGI parameter sf)
-	# It's also useless to try any matching unless $refname has a dot,
-	# so we check for that too
-	if (defined $input_params{'action'} &&
-		$input_params{'action'} eq 'snapshot' &&
-		defined $refname && index($refname, '.') != -1 &&
-		$refname eq $input_params{'hash'} &&
-		!defined $input_params{'snapshot_format'}) {
-		# We loop over the known snapshot formats, checking for
-		# extensions. Allowed extensions are both the defined suffix
-		# (which includes the initial dot already) and the snapshot
-		# format key itself, with a prepended dot
-		while (my ($fmt, $opt) = each %known_snapshot_formats) {
-			my $hash = $refname;
-			unless ($hash =~ s/(\Q$opt->{'suffix'}\E|\Q.$fmt\E)$//) {
-				next;
-			}
-			my $sfx = $1;
-			# a valid suffix was found, so set the snapshot format
-			# and reset the hash parameter
-			$input_params{'snapshot_format'} = $fmt;
-			$input_params{'hash'} = $hash;
-			# we also set the format suffix to the one requested
-			# in the URL: this way a request for e.g. .tgz returns
-			# a .tgz instead of a .tar.gz
-			$known_snapshot_formats{$fmt}{'suffix'} = $sfx;
-			last;
-		}
-	}
-}
-
-our ($action, $project, $file_name, $file_parent, $hash, $hash_parent, $hash_base,
-     $hash_parent_base, @extra_options, $page, $searchtype, $search_use_regexp,
-     $searchtext, $search_regexp, $project_filter);
-sub evaluate_and_validate_params {
-	our $action = $input_params{'action'};
-	if (defined $action) {
-		if (!is_valid_action($action)) {
-			die_error(400, "Invalid action parameter");
-		}
-	}
-
-	# parameters which are pathnames
-	our $project = $input_params{'project'};
-	if (defined $project) {
-		if (!is_valid_project($project)) {
-			undef $project;
-			die_error(404, "No such project");
-		}
-	}
-
-	our $project_filter = $input_params{'project_filter'};
-	if (defined $project_filter) {
-		if (!is_valid_pathname($project_filter)) {
-			die_error(404, "Invalid project_filter parameter");
-		}
-	}
-
-	our $file_name = $input_params{'file_name'};
-	if (defined $file_name) {
-		if (!is_valid_pathname($file_name)) {
-			die_error(400, "Invalid file parameter");
-		}
-	}
-
-	our $file_parent = $input_params{'file_parent'};
-	if (defined $file_parent) {
-		if (!is_valid_pathname($file_parent)) {
-			die_error(400, "Invalid file parent parameter");
-		}
-	}
-
-	# parameters which are refnames
-	our $hash = $input_params{'hash'};
-	if (defined $hash) {
-		if (!is_valid_refname($hash)) {
-			die_error(400, "Invalid hash parameter");
-		}
-	}
-
-	our $hash_parent = $input_params{'hash_parent'};
-	if (defined $hash_parent) {
-		if (!is_valid_refname($hash_parent)) {
-			die_error(400, "Invalid hash parent parameter");
-		}
-	}
-
-	our $hash_base = $input_params{'hash_base'};
-	if (defined $hash_base) {
-		if (!is_valid_refname($hash_base)) {
-			die_error(400, "Invalid hash base parameter");
-		}
-	}
-
-	our @extra_options = @{$input_params{'extra_options'}};
-	# @extra_options is always defined, since it can only be (currently) set from
-	# CGI, and $cgi->param() returns the empty array in array context if the param
-	# is not set
-	foreach my $opt (@extra_options) {
-		if (not exists $allowed_options{$opt}) {
-			die_error(400, "Invalid option parameter");
-		}
-		if (not grep(/^$action$/, @{$allowed_options{$opt}})) {
-			die_error(400, "Invalid option parameter for this action");
-		}
-	}
-
-	our $hash_parent_base = $input_params{'hash_parent_base'};
-	if (defined $hash_parent_base) {
-		if (!is_valid_refname($hash_parent_base)) {
-			die_error(400, "Invalid hash parent base parameter");
-		}
-	}
-
-	# other parameters
-	our $page = $input_params{'page'};
-	if (defined $page) {
-		if ($page =~ m/[^0-9]/) {
-			die_error(400, "Invalid page parameter");
-		}
-	}
-
-	our $searchtype = $input_params{'searchtype'};
-	if (defined $searchtype) {
-		if ($searchtype =~ m/[^a-z]/) {
-			die_error(400, "Invalid searchtype parameter");
-		}
-	}
-
-	our $search_use_regexp = $input_params{'search_use_regexp'};
-
-	our $searchtext = $input_params{'searchtext'};
-	our $search_regexp = undef;
-	if (defined $searchtext) {
-		if (length($searchtext) < 2) {
-			die_error(403, "At least two characters are required for search parameter");
-		}
-		if ($search_use_regexp) {
-			$search_regexp = $searchtext;
-			if (!eval { qr/$search_regexp/; 1; }) {
-				(my $error = $@) =~ s/ at \S+ line \d+.*\n?//;
-				die_error(400, "Invalid search regexp '$search_regexp'",
-				          esc_html($error));
-			}
-		} else {
-			$search_regexp = quotemeta $searchtext;
-		}
-	}
-}
-
-# path to the current git repository
-our $git_dir;
-sub evaluate_git_dir {
-	our $git_dir = "$projectroot/$project" if $project;
-}
-
-our (@snapshot_fmts, $git_avatar, @extra_branch_refs);
-sub configure_gitweb_features {
-	# list of supported snapshot formats
-	our @snapshot_fmts = gitweb_get_feature('snapshot');
-	@snapshot_fmts = filter_snapshot_fmts(@snapshot_fmts);
-
-	our ($git_avatar) = gitweb_get_feature('avatar');
-	$git_avatar = '' unless $git_avatar =~ /^(?:gravatar|picon)$/s;
-
-	our @extra_branch_refs = gitweb_get_feature('extra-branch-refs');
-	@extra_branch_refs = filter_and_validate_refs (@extra_branch_refs);
-}
-
-sub get_branch_refs {
-	return ('heads', @extra_branch_refs);
-}
-
-# custom error handler: 'die <message>' is Internal Server Error
-sub handle_errors_html {
-	my $msg = shift; # it is already HTML escaped
-
-	# to avoid infinite loop where error occurs in die_error,
-	# change handler to default handler, disabling handle_errors_html
-	set_message("Error occurred when inside die_error:\n$msg");
-
-	# you cannot jump out of die_error when called as error handler;
-	# the subroutine set via CGI::Carp::set_message is called _after_
-	# HTTP headers are already written, so it cannot write them itself
-	die_error(undef, undef, $msg, -error_handler => 1, -no_http_header => 1);
-}
-set_message(\&handle_errors_html);
-
-# dispatch
-sub dispatch {
-	if (!defined $action) {
-		if (defined $hash) {
-			$action = git_get_type($hash);
-			$action or die_error(404, "Object does not exist");
-		} elsif (defined $hash_base && defined $file_name) {
-			$action = git_get_type("$hash_base:$file_name");
-			$action or die_error(404, "File or directory does not exist");
-		} elsif (defined $project) {
-			$action = 'summary';
-		} else {
-			$action = 'project_list';
-		}
-	}
-	if (!defined($actions{$action})) {
-		die_error(400, "Unknown action");
-	}
-	if ($action !~ m/^(?:opml|project_list|project_index)$/ &&
-	    !$project) {
-		die_error(400, "Project needed");
-	}
-	$actions{$action}->();
-}
-
-sub reset_timer {
-	our $t0 = [ gettimeofday() ]
-		if defined $t0;
-	our $number_of_git_cmds = 0;
-}
-
-our $first_request = 1;
-sub run_request {
-	reset_timer();
-
-	evaluate_uri();
-	if ($first_request) {
-		evaluate_gitweb_config();
-		evaluate_git_version();
-	}
-	if ($per_request_config) {
-		if (ref($per_request_config) eq 'CODE') {
-			$per_request_config->();
-		} elsif (!$first_request) {
-			evaluate_gitweb_config();
-		}
-	}
-	check_loadavg();
-
-	# $projectroot and $projects_list might be set in gitweb config file
-	$projects_list ||= $projectroot;
-
-	evaluate_query_params();
-	evaluate_path_info();
-	evaluate_and_validate_params();
-	evaluate_git_dir();
-
-	configure_gitweb_features();
-
-	dispatch();
-}
-
-our $is_last_request = sub { 1 };
-our ($pre_dispatch_hook, $post_dispatch_hook, $pre_listen_hook);
-our $CGI = 'CGI';
-our $cgi;
-our $FCGI_Stream_PRINT_raw = \&FCGI::Stream::PRINT;
-sub configure_as_fcgi {
-	require CGI::Fast;
-	our $CGI = 'CGI::Fast';
-	# FCGI is not Unicode aware hence the UTF-8 encoding must be done manually.
-	# However no encoding must be done within git_blob_plain() and git_snapshot()
-	# which must still output in raw binary mode.
-	no warnings 'redefine';
-	my $enc = Encode::find_encoding('UTF-8');
-	*FCGI::Stream::PRINT = sub {
-		my @OUTPUT = @_;
-		for (my $i = 1; $i < @_; $i++) {
-			$OUTPUT[$i] = $enc->encode($_[$i], Encode::FB_CROAK|Encode::LEAVE_SRC);
-		}
-		@_ = @OUTPUT;
-		goto $FCGI_Stream_PRINT_raw;
-	};
-
-	my $request_number = 0;
-	# let each child service 100 requests
-	our $is_last_request = sub { ++$request_number > 100 };
-}
-sub evaluate_argv {
-	my $script_name = $ENV{'SCRIPT_NAME'} || $ENV{'SCRIPT_FILENAME'} || __FILE__;
-	configure_as_fcgi()
-		if $script_name =~ /\.fcgi$/;
-
-	return unless (@ARGV);
-
-	require Getopt::Long;
-	Getopt::Long::GetOptions(
-		'fastcgi|fcgi|f' => \&configure_as_fcgi,
-		'nproc|n=i' => sub {
-			my ($arg, $val) = @_;
-			return unless eval { require FCGI::ProcManager; 1; };
-			my $proc_manager = FCGI::ProcManager->new({
-				n_processes => $val,
-			});
-			our $pre_listen_hook    = sub { $proc_manager->pm_manage()        };
-			our $pre_dispatch_hook  = sub { $proc_manager->pm_pre_dispatch()  };
-			our $post_dispatch_hook = sub { $proc_manager->pm_post_dispatch() };
-		},
-	);
-}
-
-sub run {
-	evaluate_argv();
-
-	$first_request = 1;
-	$pre_listen_hook->()
-		if $pre_listen_hook;
-
- REQUEST:
-	while ($cgi = $CGI->new()) {
-		$pre_dispatch_hook->()
-			if $pre_dispatch_hook;
-
-		run_request();
-
-		$post_dispatch_hook->()
-			if $post_dispatch_hook;
-		$first_request = 0;
-
-		last REQUEST if ($is_last_request->());
-	}
-
- DONE_GITWEB:
-	1;
-}
-
-run();
-
-if (defined caller) {
-	# wrapped in a subroutine processing requests,
-	# e.g. mod_perl with ModPerl::Registry, or PSGI with Plack::App::WrapCGI
-	return;
-} else {
-	# pure CGI script, serving single request
-	exit;
-}
-
-## ======================================================================
-## action links
-
-# possible values of extra options
-# -full => 0|1      - use absolute/full URL ($my_uri/$my_url as base)
-# -replay => 1      - start from a current view (replay with modifications)
-# -path_info => 0|1 - don't use/use path_info URL (if possible)
-# -anchor => ANCHOR - add #ANCHOR to end of URL, implies -replay if used alone
-sub href {
-	my %params = @_;
-	# default is to use -absolute url() i.e. $my_uri
-	my $href = $params{-full} ? $my_url : $my_uri;
-
-	# implicit -replay, must be first of implicit params
-	$params{-replay} = 1 if (keys %params == 1 && $params{-anchor});
-
-	$params{'project'} = $project unless exists $params{'project'};
-
-	if ($params{-replay}) {
-		while (my ($name, $symbol) = each %cgi_param_mapping) {
-			if (!exists $params{$name}) {
-				$params{$name} = $input_params{$name};
-			}
-		}
-	}
-
-	my $use_pathinfo = gitweb_check_feature('pathinfo');
-	if (defined $params{'project'} &&
-	    (exists $params{-path_info} ? $params{-path_info} : $use_pathinfo)) {
-		# try to put as many parameters as possible in PATH_INFO:
-		#   - project name
-		#   - action
-		#   - hash_parent or hash_parent_base:/file_parent
-		#   - hash or hash_base:/filename
-		#   - the snapshot_format as an appropriate suffix
-
-		# When the script is the root DirectoryIndex for the domain,
-		# $href here would be something like http://gitweb.example.com/
-		# Thus, we strip any trailing / from $href, to spare us double
-		# slashes in the final URL
-		$href =~ s,/$,,;
-
-		# Then add the project name, if present
-		$href .= "/".esc_path_info($params{'project'});
-		delete $params{'project'};
-
-		# since we destructively absorb parameters, we keep this
-		# boolean that remembers if we're handling a snapshot
-		my $is_snapshot = $params{'action'} eq 'snapshot';
-
-		# Summary just uses the project path URL, any other action is
-		# added to the URL
-		if (defined $params{'action'}) {
-			$href .= "/".esc_path_info($params{'action'})
-				unless $params{'action'} eq 'summary';
-			delete $params{'action'};
-		}
-
-		# Next, we put hash_parent_base:/file_parent..hash_base:/file_name,
-		# stripping nonexistent or useless pieces
-		$href .= "/" if ($params{'hash_base'} || $params{'hash_parent_base'}
-			|| $params{'hash_parent'} || $params{'hash'});
-		if (defined $params{'hash_base'}) {
-			if (defined $params{'hash_parent_base'}) {
-				$href .= esc_path_info($params{'hash_parent_base'});
-				# skip the file_parent if it's the same as the file_name
-				if (defined $params{'file_parent'}) {
-					if (defined $params{'file_name'} && $params{'file_parent'} eq $params{'file_name'}) {
-						delete $params{'file_parent'};
-					} elsif ($params{'file_parent'} !~ /\.\./) {
-						$href .= ":/".esc_path_info($params{'file_parent'});
-						delete $params{'file_parent'};
-					}
-				}
-				$href .= "..";
-				delete $params{'hash_parent'};
-				delete $params{'hash_parent_base'};
-			} elsif (defined $params{'hash_parent'}) {
-				$href .= esc_path_info($params{'hash_parent'}). "..";
-				delete $params{'hash_parent'};
-			}
-
-			$href .= esc_path_info($params{'hash_base'});
-			if (defined $params{'file_name'} && $params{'file_name'} !~ /\.\./) {
-				$href .= ":/".esc_path_info($params{'file_name'});
-				delete $params{'file_name'};
-			}
-			delete $params{'hash'};
-			delete $params{'hash_base'};
-		} elsif (defined $params{'hash'}) {
-			$href .= esc_path_info($params{'hash'});
-			delete $params{'hash'};
-		}
-
-		# If the action was a snapshot, we can absorb the
-		# snapshot_format parameter too
-		if ($is_snapshot) {
-			my $fmt = $params{'snapshot_format'};
-			# snapshot_format should always be defined when href()
-			# is called, but just in case some code forgets, we
-			# fall back to the default
-			$fmt ||= $snapshot_fmts[0];
-			$href .= $known_snapshot_formats{$fmt}{'suffix'};
-			delete $params{'snapshot_format'};
-		}
-	}
-
-	# now encode the parameters explicitly
-	my @result = ();
-	for (my $i = 0; $i < @cgi_param_mapping; $i += 2) {
-		my ($name, $symbol) = ($cgi_param_mapping[$i], $cgi_param_mapping[$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;
-
-	# final transformation: trailing spaces must be escaped (URI-encoded)
-	$href =~ s/(\s+)$/CGI::escape($1)/e;
-
-	if ($params{-anchor}) {
-		$href .= "#".esc_param($params{-anchor});
-	}
-
-	return $href;
-}
-
-
-## ======================================================================
-## validation, quoting/unquoting and escaping
-
-sub is_valid_action {
-	my $input = shift;
-	return undef unless exists $actions{$input};
-	return 1;
-}
-
-sub is_valid_project {
-	my $input = shift;
-
-	return unless defined $input;
-	if (!is_valid_pathname($input) ||
-		!(-d "$projectroot/$input") ||
-		!check_export_ok("$projectroot/$input") ||
-		($strict_export && !project_in_list($input))) {
-		return undef;
-	} else {
-		return 1;
-	}
-}
-
-sub is_valid_pathname {
-	my $input = shift;
-
-	return undef unless defined $input;
-	# no '.' or '..' as elements of path, i.e. no '.' or '..'
-	# at the beginning, at the end, and between slashes.
-	# also this catches doubled slashes
-	if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
-		return undef;
-	}
-	# no null characters
-	if ($input =~ m!\0!) {
-		return undef;
-	}
-	return 1;
-}
-
-sub is_valid_ref_format {
-	my $input = shift;
-
-	return undef unless defined $input;
-	# restrictions on ref name according to git-check-ref-format
-	if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
-		return undef;
-	}
-	return 1;
-}
-
-sub is_valid_refname {
-	my $input = shift;
-
-	return undef unless defined $input;
-	# textual hashes are O.K.
-	if ($input =~ m/^$oid_regex$/) {
-		return 1;
-	}
-	# it must be correct pathname
-	is_valid_pathname($input) or return undef;
-	# check git-check-ref-format restrictions
-	is_valid_ref_format($input) or return undef;
-	return 1;
-}
-
-# 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;
-	return undef unless defined $str;
-
-	if (utf8::is_utf8($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;
-	return undef unless defined $str;
-	$str =~ s/([^A-Za-z0-9\-_.~()\/:@ ]+)/CGI::escape($1)/eg;
-	$str =~ s/ /\+/g;
-	return $str;
-}
-
-# the quoting rules for path_info fragment are slightly different
-sub esc_path_info {
-	my $str = shift;
-	return undef unless defined $str;
-
-	# path_info doesn't treat '+' as space (specially), but '?' must be escaped
-	$str =~ s/([^A-Za-z0-9\-_.~();\/;:@&= +]+)/CGI::escape($1)/eg;
-
-	return $str;
-}
-
-# quote unsafe chars in whole URL, so some characters cannot be quoted
-sub esc_url {
-	my $str = shift;
-	return undef unless defined $str;
-	$str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&= ]+)/CGI::escape($1)/eg;
-	$str =~ s/ /\+/g;
-	return $str;
-}
-
-# quote unsafe characters in HTML attributes
-sub esc_attr {
-
-	# for XHTML conformance escaping '"' to '&quot;' is not enough
-	return esc_html(@_);
-}
-
-# replace invalid utf8 character with SUBSTITUTION sequence
-sub esc_html {
-	my $str = shift;
-	my %opts = @_;
-
-	return undef unless defined $str;
-
-	$str = to_utf8($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 = @_;
-
-	return undef unless defined $str;
-
-	$str = to_utf8($str);
-	$str = $cgi->escapeHTML($str);
-	if ($opts{'-nbsp'}) {
-		$str =~ s/ /&nbsp;/g;
-	}
-	$str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
-	return $str;
-}
-
-# Sanitize for use in XHTML + application/xml+xhtml (valid XML 1.0)
-sub sanitize {
-	my $str = shift;
-
-	return undef unless defined $str;
-
-	$str = to_utf8($str);
-	$str =~ s|([[:cntrl:]])|(index("\t\n\r", $1) != -1 ? $1 : 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',   # carriage 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('\%2x', 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'
-
-	# Make sure perl knows it is utf8 encoded so we don't
-	# cut in the middle of a utf8 multibyte char.
-	$str = to_utf8($str);
-
-	# 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) {
-			$lead = " ...";
-		}
-		return "$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) {
-			$mid = " ... ";
-		}
-		return "$left$mid$right";
-
-	} else {
-		$str =~ m/^($endre)(.*)$/;
-		my $body = $1;
-		my $tail = $2;
-		if (length($tail) > 4) {
-			$tail = "... ";
-		}
-		return "$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(@_);
-	$str = to_utf8($str);
-	if ($chopped eq $str) {
-		return esc_html($chopped);
-	} else {
-		$str =~ s/[[:cntrl:]]/?/g;
-		return $cgi->span({-title=>$str}, esc_html($chopped));
-	}
-}
-
-# Highlight selected fragments of string, using given CSS class,
-# and escape HTML.  It is assumed that fragments do not overlap.
-# Regions are passed as list of pairs (array references).
-#
-# Example: esc_html_hl_regions("foobar", "mark", [ 0, 3 ]) returns
-# '<span class="mark">foo</span>bar'
-sub esc_html_hl_regions {
-	my ($str, $css_class, @sel) = @_;
-	my %opts = grep { ref($_) ne 'ARRAY' } @sel;
-	@sel     = grep { ref($_) eq 'ARRAY' } @sel;
-	return esc_html($str, %opts) unless @sel;
-
-	my $out = '';
-	my $pos = 0;
-
-	for my $s (@sel) {
-		my ($begin, $end) = @$s;
-
-		# Don't create empty <span> elements.
-		next if $end <= $begin;
-
-		my $escaped = esc_html(substr($str, $begin, $end - $begin),
-		                       %opts);
-
-		$out .= esc_html(substr($str, $pos, $begin - $pos), %opts)
-			if ($begin - $pos > 0);
-		$out .= $cgi->span({-class => $css_class}, $escaped);
-
-		$pos = $end;
-	}
-	$out .= esc_html(substr($str, $pos), %opts)
-		if ($pos < length($str));
-
-	return $out;
-}
-
-# return positions of beginning and end of each match
-sub matchpos_list {
-	my ($str, $regexp) = @_;
-	return unless (defined $str && defined $regexp);
-
-	my @matches;
-	while ($str =~ /$regexp/g) {
-		push @matches, [$-[0], $+[0]];
-	}
-	return @matches;
-}
-
-# highlight match (if any), and escape HTML
-sub esc_html_match_hl {
-	my ($str, $regexp) = @_;
-	return esc_html($str) unless defined $regexp;
-
-	my @matches = matchpos_list($str, $regexp);
-	return esc_html($str) unless @matches;
-
-	return esc_html_hl_regions($str, 'match', @matches);
-}
-
-
-# highlight match (if any) of shortened string, and escape HTML
-sub esc_html_match_hl_chopped {
-	my ($str, $chopped, $regexp) = @_;
-	return esc_html_match_hl($str, $regexp) unless defined $chopped;
-
-	my @matches = matchpos_list($str, $regexp);
-	return esc_html($chopped) unless @matches;
-
-	# filter matches so that we mark chopped string
-	my $tail = "... "; # see chop_str
-	unless ($chopped =~ s/\Q$tail\E$//) {
-		$tail = '';
-	}
-	my $chop_len = length($chopped);
-	my $tail_len = length($tail);
-	my @filtered;
-
-	for my $m (@matches) {
-		if ($m->[0] > $chop_len) {
-			push @filtered, [ $chop_len, $chop_len + $tail_len ] if ($tail_len > 0);
-			last;
-		} elsif ($m->[1] > $chop_len) {
-			push @filtered, [ $m->[0], $chop_len + $tail_len ];
-			last;
-		}
-		push @filtered, $m;
-	}
-
-	return esc_html_hl_regions($chopped . $tail, 'match', @filtered);
-}
-
-## ----------------------------------------------------------------------
-## 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;
-
-	# Potentially abbreviated OID.
-	my $regex = oid_nlen_regex("7,64");
-
-	$line = esc_html($line, -nbsp=>1);
-	$line =~ s{
-        \b
-        (
-            # The output of "git describe", e.g. v2.10.0-297-gf6727b0
-            # or hadoop-20160921-113441-20-g094fb7d
-            (?<!-) # see strbuf_check_tag_ref(). Tags can't start with -
-            [A-Za-z0-9.-]+
-            (?!\.) # refs can't end with ".", see check_refname_format()
-            -g$regex
-            |
-            # Just a normal looking Git SHA1
-	    $regex
-        )
-        \b
-    }{
-		$cgi->a({-href => href(action=>"object", hash=>$1),
-					-class => "text"}, $1);
-	}egx;
-
-	return $line;
-}
-
-# format marker of refs pointing to given object
-
-# the destination action is chosen based on object type and current context:
-# - for annotated tags, we choose the tag view unless it's the current view
-#   already, in which case we go to shortlog view
-# - for other refs, we keep the current view if we're in history, shortlog or
-#   log view, and select shortlog otherwise
-sub format_ref_marker {
-	my ($refs, $id) = @_;
-	my $markers = '';
-
-	if (defined $refs->{$id}) {
-		foreach my $ref (@{$refs->{$id}}) {
-			# this code exploits the fact that non-lightweight tags are the
-			# only indirect objects, and that they are the only objects for which
-			# we want to use tag instead of shortlog as action
-			my ($type, $name) = qw();
-			my $indirect = ($ref =~ s/\^\{\}$//);
-			# e.g. tags/v2.6.11 or heads/next
-			if ($ref =~ m!^(.*?)s?/(.*)$!) {
-				$type = $1;
-				$name = $2;
-			} else {
-				$type = "ref";
-				$name = $ref;
-			}
-
-			my $class = $type;
-			$class .= " indirect" if $indirect;
-
-			my $dest_action = "shortlog";
-
-			if ($indirect) {
-				$dest_action = "tag" unless $action eq "tag";
-			} elsif ($action =~ /^(history|(short)?log)$/) {
-				$dest_action = $action;
-			}
-
-			my $dest = "";
-			$dest .= "refs/" unless $ref =~ m!^refs/!;
-			$dest .= $ref;
-
-			my $link = $cgi->a({
-				-href => href(
-					action=>$dest_action,
-					hash=>$dest
-				)}, esc_html($name));
-
-			$markers .= " <span class=\"".esc_attr($class)."\" title=\"".esc_attr($ref)."\">" .
-				$link . "</span>";
-		}
-	}
-
-	if ($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)) {
-		$long =~ s/[[:cntrl:]]/?/g;
-		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;
-	}
-}
-
-# Rather than recomputing the url for an email multiple times, we cache it
-# after the first hit. This gives a visible benefit in views where the avatar
-# for the same email is used repeatedly (e.g. shortlog).
-# The cache is shared by all avatar engines (currently gravatar only), which
-# are free to use it as preferred. Since only one avatar engine is used for any
-# given page, there's no risk for cache conflicts.
-our %avatar_cache = ();
-
-# Compute the picon url for a given email, by using the picon search service over at
-# http://www.cs.indiana.edu/picons/search.html
-sub picon_url {
-	my $email = lc shift;
-	if (!$avatar_cache{$email}) {
-		my ($user, $domain) = split('@', $email);
-		$avatar_cache{$email} =
-			"//www.cs.indiana.edu/cgi-pub/kinzler/piconsearch.cgi/" .
-			"$domain/$user/" .
-			"users+domains+unknown/up/single";
-	}
-	return $avatar_cache{$email};
-}
-
-# Compute the gravatar url for a given email, if it's not in the cache already.
-# Gravatar stores only the part of the URL before the size, since that's the
-# one computationally more expensive. This also allows reuse of the cache for
-# different sizes (for this particular engine).
-sub gravatar_url {
-	my $email = lc shift;
-	my $size = shift;
-	$avatar_cache{$email} ||=
-		"//www.gravatar.com/avatar/" .
-			md5_hex($email) . "?s=";
-	return $avatar_cache{$email} . $size;
-}
-
-# Insert an avatar for the given $email at the given $size if the feature
-# is enabled.
-sub git_get_avatar {
-	my ($email, %opts) = @_;
-	my $pre_white  = ($opts{-pad_before} ? "&nbsp;" : "");
-	my $post_white = ($opts{-pad_after}  ? "&nbsp;" : "");
-	$opts{-size} ||= 'default';
-	my $size = $avatar_size{$opts{-size}} || $avatar_size{'default'};
-	my $url = "";
-	if ($git_avatar eq 'gravatar') {
-		$url = gravatar_url($email, $size);
-	} elsif ($git_avatar eq 'picon') {
-		$url = picon_url($email);
-	}
-	# Other providers can be added by extending the if chain, defining $url
-	# as needed. If no variant puts something in $url, we assume avatars
-	# are completely disabled/unavailable.
-	if ($url) {
-		return $pre_white .
-		       "<img width=\"$size\" " .
-		            "class=\"avatar\" " .
-		            "src=\"".esc_url($url)."\" " .
-			    "alt=\"\" " .
-		       "/>" . $post_white;
-	} else {
-		return "";
-	}
-}
-
-sub format_search_author {
-	my ($author, $searchtype, $displaytext) = @_;
-	my $have_search = gitweb_check_feature('search');
-
-	if ($have_search) {
-		my $performed = "";
-		if ($searchtype eq 'author') {
-			$performed = "authored";
-		} elsif ($searchtype eq 'committer') {
-			$performed = "committed";
-		}
-
-		return $cgi->a({-href => href(action=>"search", hash=>$hash,
-				searchtext=>$author,
-				searchtype=>$searchtype), class=>"list",
-				title=>"Search for commits $performed by $author"},
-				$displaytext);
-
-	} else {
-		return $displaytext;
-	}
-}
-
-# format the author name of the given commit with the given tag
-# the author name is chopped and escaped according to the other
-# optional parameters (see chop_str).
-sub format_author_html {
-	my $tag = shift;
-	my $co = shift;
-	my $author = chop_and_escape_str($co->{'author_name'}, @_);
-	return "<$tag class=\"author\">" .
-	       format_search_author($co->{'author_name'}, "author",
-		       git_get_avatar($co->{'author_email'}, -pad_after => 1) .
-		       $author) .
-	       "</$tag>";
-}
-
-# 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 =~ oid_nlen_prefix_infix_regex($sha1_len, "index ", ",") |
-	    $line =~ oid_nlen_prefix_infix_regex($sha256_len, "index ", ",")) {
-		# 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 =~ oid_nlen_prefix_infix_regex($sha1_len, "index ", "..") |
-		 $line =~ oid_nlen_prefix_infix_regex($sha256_len, "index ", "..")) {
-		# 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 $result;
-}
-
-sub diff_line_class {
-	my ($line, $from, $to) = @_;
-
-	# ordinary diff
-	my $num_sign = 1;
-	# combined diff
-	if ($from && $to && ref($from->{'href'}) eq "ARRAY") {
-		$num_sign = scalar @{$from->{'href'}};
-	}
-
-	my @diff_line_classifier = (
-		{ regexp => qr/^\@\@{$num_sign} /, class => "chunk_header"},
-		{ regexp => qr/^\\/,               class => "incomplete"  },
-		{ regexp => qr/^ {$num_sign}/,     class => "ctx" },
-		# classifier for context must come before classifier add/rem,
-		# or we would have to use more complicated regexp, for example
-		# qr/(?= {0,$m}\+)[+ ]{$num_sign}/, where $m = $num_sign - 1;
-		{ regexp => qr/^[+ ]{$num_sign}/,   class => "add" },
-		{ regexp => qr/^[- ]{$num_sign}/,   class => "rem" },
-	);
-	for my $clsfy (@diff_line_classifier) {
-		return $clsfy->{'class'}
-			if ($line =~ $clsfy->{'regexp'});
-	}
-
-	# fallback
-	return "";
-}
-
-# assumes that $from and $to are defined and correctly filled,
-# and that $line holds a line of chunk header for unified diff
-sub format_unidiff_chunk_header {
-	my ($line, $from, $to) = @_;
-
-	my ($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 $line;
-}
-
-# assumes that $from and $to are defined and correctly filled,
-# and that $line holds a line of chunk header for combined diff
-sub format_cc_diff_chunk_header {
-	my ($line, $from, $to) = @_;
-
-	my ($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 $line;
-}
-
-# process patch (diff) line (not to be used for diff headers),
-# returning HTML-formatted (but not wrapped) line.
-# If the line is passed as a reference, it is treated as HTML and not
-# esc_html()'ed.
-sub format_diff_line {
-	my ($line, $diff_class, $from, $to) = @_;
-
-	if (ref($line)) {
-		$line = $$line;
-	} else {
-		chomp $line;
-		$line = untabify($line);
-
-		if ($from && $to && $line =~ m/^\@{2} /) {
-			$line = format_unidiff_chunk_header($line, $from, $to);
-		} elsif ($from && $to && $line =~ m/^\@{3}/) {
-			$line = format_cc_diff_chunk_header($line, $from, $to);
-		} else {
-			$line = esc_html($line, -nbsp=>1);
-		}
-	}
-
-	my $diff_classes = "diff";
-	$diff_classes .= " $diff_class" if ($diff_class);
-	$line = "<div class=\"$diff_classes\">$line</div>\n";
-
-	return $line;
-}
-
-# Generates undef or something like "_snapshot_" or "snapshot (_tbz2_ _zip_)",
-# linked.  Pass the hash of the tree/commit to snapshot.
-sub format_snapshot_links {
-	my ($hash) = @_;
-	my $num_fmts = @snapshot_fmts;
-	if ($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'}"
-			}, "snapshot");
-	} else { # $num_fmts == 0
-		return undef;
-	}
-}
-
-## ......................................................................
-## functions returning values to be passed, perhaps after some
-## transformation, to other functions; e.g. returning arguments to href()
-
-# returns hash to be passed to href to generate gitweb URL
-# in -title key it returns description of link
-sub get_feed_info {
-	my $format = shift || 'Atom';
-	my %res = (action => lc($format));
-	my $matched_ref = 0;
-
-	# feed links are possible only for project views
-	return unless (defined $project);
-	# some views should link to OPML, or to generic project feed,
-	# or don't have specific feed yet (so they should use generic)
-	return if (!$action || $action =~ /^(?:tags|heads|forks|tag|search)$/x);
-
-	my $branch = undef;
-	# branches refs uses 'refs/' + $get_branch_refs()[x] + '/' prefix
-	# (fullname) to differentiate from tag links; this also makes
-	# possible to detect branch links
-	for my $ref (get_branch_refs()) {
-		if ((defined $hash_base && $hash_base =~ m!^refs/\Q$ref\E/(.*)$!) ||
-		    (defined $hash      && $hash      =~ m!^refs/\Q$ref\E/(.*)$!)) {
-			$branch = $1;
-			$matched_ref = $ref;
-			last;
-		}
-	}
-	# find log type for feed description (title)
-	my $type = 'log';
-	if (defined $file_name) {
-		$type  = "history of $file_name";
-		$type .= "/" if ($action eq 'tree');
-		$type .= " on '$branch'" if (defined $branch);
-	} else {
-		$type = "log of $branch" if (defined $branch);
-	}
-
-	$res{-title} = $type;
-	$res{'hash'} = (defined $branch ? "refs/$matched_ref/$branch" : undef);
-	$res{'file_name'} = $file_name;
-
-	return %res;
-}
-
-## ----------------------------------------------------------------------
-## git utility subroutines, invoking git commands
-
-# returns path to the core git executable and the --git-dir parameter as list
-sub git_cmd {
-	$number_of_git_cmds++;
-	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; "'$a'" } @_ );
-}
-
-# get HEAD ref of given project as hash
-sub git_get_head_hash {
-	return git_get_full_hash(shift, 'HEAD');
-}
-
-sub git_get_full_hash {
-	return git_get_hash(@_);
-}
-
-sub git_get_short_hash {
-	return git_get_hash(@_, '--short=7');
-}
-
-sub git_get_hash {
-	my ($project, $hash, @options) = @_;
-	my $o_git_dir = $git_dir;
-	my $retval = undef;
-	$git_dir = "$projectroot/$project";
-	if (open my $fd, '-|', git_cmd(), 'rev-parse',
-	    '--verify', '-q', @options, $hash) {
-		$retval = <$fd>;
-		chomp $retval if defined $retval;
-		close $fd;
-	}
-	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;
-
-	return 1 if !defined $val;             # section.key
-
-	# strip leading and trailing whitespace
-	$val =~ s/^\s+//;
-	$val =~ s/\s+$//;
-
-	return (($val =~ /^\d+$/ && $val) ||   # section.key = 1
-	        ($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) = @_;
-
-	return unless defined $git_dir;
-
-	# key sanity check
-	return unless ($key);
-	# only subsection, if exists, is case sensitive,
-	# and not lowercased by 'git config -z -l'
-	if (my ($hi, $mi, $lo) = ($key =~ /^([^.]*)\.(.*)\.([^.]*)$/)) {
-		$lo =~ s/_//g;
-		$key = join(".", lc($hi), $mi, lc($lo));
-		return if ($lo =~ /\W/ || $hi =~ /\W/);
-	} else {
-		$key = lc($key);
-		$key =~ s/_//g;
-		return if ($key =~ /\W/);
-	}
-	$key =~ s/^gitweb\.//;
-
-	# 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";
-	}
-
-	# check if config variable (key) exists
-	return unless exists $config{"gitweb.$key"};
-
-	# 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(500, "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'
-	$line =~ m/^([0-9]+) (.+) ($oid_regex)\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 $fd;
-	return undef;
-}
-
-## ......................................................................
-## git utility functions, directly accessing git repository
-
-# get the value of config variable either from file named as the variable
-# itself in the repository ($GIT_DIR/$name file), or from gitweb.$name
-# configuration variable in the repository config file.
-sub git_get_file_or_project_config {
-	my ($path, $name) = @_;
-
-	$git_dir = "$projectroot/$path";
-	open my $fd, '<', "$git_dir/$name"
-		or return git_get_project_config($name);
-	my $conf = <$fd>;
-	close $fd;
-	if (defined $conf) {
-		chomp $conf;
-	}
-	return $conf;
-}
-
-sub git_get_project_description {
-	my $path = shift;
-	return git_get_file_or_project_config($path, 'description');
-}
-
-sub git_get_project_category {
-	my $path = shift;
-	return git_get_file_or_project_config($path, 'category');
-}
-
-
-# supported formats:
-# * $GIT_DIR/ctags/<tagname> file (in 'ctags' subdirectory)
-#   - if its contents is a number, use it as tag weight,
-#   - otherwise add a tag with weight 1
-# * $GIT_DIR/ctags file, each line is a tag (with weight 1)
-#   the same value multiple times increases tag weight
-# * `gitweb.ctag' multi-valued repo config variable
-sub git_get_project_ctags {
-	my $project = shift;
-	my $ctags = {};
-
-	$git_dir = "$projectroot/$project";
-	if (opendir my $dh, "$git_dir/ctags") {
-		my @files = grep { -f $_ } map { "$git_dir/ctags/$_" } readdir($dh);
-		foreach my $tagfile (@files) {
-			open my $ct, '<', $tagfile
-				or next;
-			my $val = <$ct>;
-			chomp $val if $val;
-			close $ct;
-
-			(my $ctag = $tagfile) =~ s#.*/##;
-			if ($val =~ /^\d+$/) {
-				$ctags->{$ctag} = $val;
-			} else {
-				$ctags->{$ctag} = 1;
-			}
-		}
-		closedir $dh;
-
-	} elsif (open my $fh, '<', "$git_dir/ctags") {
-		while (my $line = <$fh>) {
-			chomp $line;
-			$ctags->{$line}++ if $line;
-		}
-		close $fh;
-
-	} else {
-		my $taglist = config_to_multi(git_get_project_config('ctag'));
-		foreach my $tag (@$taglist) {
-			$ctags->{$tag}++;
-		}
-	}
-
-	return $ctags;
-}
-
-# return hash, where keys are content tags ('ctags'),
-# and values are sum of weights of given tag in every project
-sub git_gather_all_ctags {
-	my $projects = shift;
-	my $ctags = {};
-
-	foreach my $p (@$projects) {
-		foreach my $ct (keys %{$p->{'ctags'}}) {
-			$ctags->{$ct} += $p->{'ctags'}->{$ct};
-		}
-	}
-
-	return $ctags;
-}
-
-sub git_populate_project_tagcloud {
-	my $ctags = shift;
-
-	# First, merge different-cased tags; tags vote on casing
-	my %ctags_lc;
-	foreach (keys %$ctags) {
-		$ctags_lc{lc $_}->{count} += $ctags->{$_};
-		if (not $ctags_lc{lc $_}->{topcount}
-		    or $ctags_lc{lc $_}->{topcount} < $ctags->{$_}) {
-			$ctags_lc{lc $_}->{topcount} = $ctags->{$_};
-			$ctags_lc{lc $_}->{topname} = $_;
-		}
-	}
-
-	my $cloud;
-	my $matched = $input_params{'ctag'};
-	if (eval { require HTML::TagCloud; 1; }) {
-		$cloud = HTML::TagCloud->new;
-		foreach my $ctag (sort keys %ctags_lc) {
-			# Pad the title with spaces so that the cloud looks
-			# less crammed.
-			my $title = esc_html($ctags_lc{$ctag}->{topname});
-			$title =~ s/ /&nbsp;/g;
-			$title =~ s/^/&nbsp;/g;
-			$title =~ s/$/&nbsp;/g;
-			if (defined $matched && $matched eq $ctag) {
-				$title = qq(<span class="match">$title</span>);
-			}
-			$cloud->add($title, href(project=>undef, ctag=>$ctag),
-			            $ctags_lc{$ctag}->{count});
-		}
-	} else {
-		$cloud = {};
-		foreach my $ctag (keys %ctags_lc) {
-			my $title = esc_html($ctags_lc{$ctag}->{topname}, -nbsp=>1);
-			if (defined $matched && $matched eq $ctag) {
-				$title = qq(<span class="match">$title</span>);
-			}
-			$cloud->{$ctag}{count} = $ctags_lc{$ctag}->{count};
-			$cloud->{$ctag}{ctag} =
-				$cgi->a({-href=>href(project=>undef, ctag=>$ctag)}, $title);
-		}
-	}
-	return $cloud;
-}
-
-sub git_show_project_tagcloud {
-	my ($cloud, $count) = @_;
-	if (ref $cloud eq 'HTML::TagCloud') {
-		return $cloud->html_and_css($count);
-	} else {
-		my @tags = sort { $cloud->{$a}->{'count'} <=> $cloud->{$b}->{'count'} } keys %$cloud;
-		return
-			'<div id="htmltagcloud"'.($project ? '' : ' align="center"').'>' .
-			join (', ', map {
-				$cloud->{$_}->{'ctag'}
-			} splice(@tags, 0, $count)) .
-			'</div>';
-	}
-}
-
-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 = shift || '';
-	my $paranoid = shift;
-	my @list;
-
-	if (-d $projects_list) {
-		# search in directory
-		my $dir = $projects_list;
-		# remove the trailing "/"
-		$dir =~ s!/+$!!;
-		my $pfxlen = length("$dir");
-		my $pfxdepth = ($dir =~ tr!/!!);
-		# when filtering, search only given subdirectory
-		if ($filter && !$paranoid) {
-			$dir .= "/$filter";
-			$dir =~ s!/+$!!;
-		}
-
-		File::Find::find({
-			follow_fast => 1, # follow symbolic links
-			follow_skip => 2, # ignore duplicates
-			dangling_symlinks => 0, # ignore dangling symlinks, silently
-			wanted => sub {
-				# global variables
-				our $project_maxdepth;
-				our $projectroot;
-				# skip project-list toplevel, if we get it.
-				return if (m!^[/.]$!);
-				# only directories can be git repositories
-				return unless (-d $_);
-				# need search permission
-				return unless (-x $_);
-				# don't traverse too deep (Find is super slow on os x)
-				# $project_maxdepth excludes depth of $projectroot
-				if (($File::Find::name =~ tr!/!!) - $pfxdepth > $project_maxdepth) {
-					$File::Find::prune = 1;
-					return;
-				}
-
-				my $path = substr($File::Find::name, $pfxlen + 1);
-				# paranoidly only filter here
-				if ($paranoid && $filter && $path !~ m!^\Q$filter\E/!) {
-					next;
-				}
-				# we check related file in $projectroot
-				if (check_export_ok("$projectroot/$path")) {
-					push @list, { path => $path };
-					$File::Find::prune = 1;
-				}
-			},
-		}, "$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'
-		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 is rpovided, check if $path begins with $filter
-			if ($filter && $path !~ m!^\Q$filter\E/!) {
-				next;
-			}
-			if (check_export_ok("$projectroot/$path")) {
-				my $pr = {
-					path => $path
-				};
-				if ($owner) {
-					$pr->{'owner'} = to_utf8($owner);
-				}
-				push @list, $pr;
-			}
-		}
-		close $fd;
-	}
-	return @list;
-}
-
-# written with help of Tree::Trie module (Perl Artistic License, GPL compatible)
-# as side effects it sets 'forks' field to list of forks for forked projects
-sub filter_forks_from_projects_list {
-	my $projects = shift;
-
-	my %trie; # prefix tree of directories (path components)
-	# generate trie out of those directories that might contain forks
-	foreach my $pr (@$projects) {
-		my $path = $pr->{'path'};
-		$path =~ s/\.git$//;      # forks of 'repo.git' are in 'repo/' directory
-		next if ($path =~ m!/$!); # skip non-bare repositories, e.g. 'repo/.git'
-		next unless ($path);      # skip '.git' repository: tests, git-instaweb
-		next unless (-d "$projectroot/$path"); # containing directory exists
-		$pr->{'forks'} = [];      # there can be 0 or more forks of project
-
-		# add to trie
-		my @dirs = split('/', $path);
-		# walk the trie, until either runs out of components or out of trie
-		my $ref = \%trie;
-		while (scalar @dirs &&
-		       exists($ref->{$dirs[0]})) {
-			$ref = $ref->{shift @dirs};
-		}
-		# create rest of trie structure from rest of components
-		foreach my $dir (@dirs) {
-			$ref = $ref->{$dir} = {};
-		}
-		# create end marker, store $pr as a data
-		$ref->{''} = $pr if (!exists $ref->{''});
-	}
-
-	# filter out forks, by finding shortest prefix match for paths
-	my @filtered;
- PROJECT:
-	foreach my $pr (@$projects) {
-		# trie lookup
-		my $ref = \%trie;
-	DIR:
-		foreach my $dir (split('/', $pr->{'path'})) {
-			if (exists $ref->{''}) {
-				# found [shortest] prefix, is a fork - skip it
-				push @{$ref->{''}{'forks'}}, $pr;
-				next PROJECT;
-			}
-			if (!exists $ref->{$dir}) {
-				# not in trie, cannot have prefix, not a fork
-				push @filtered, $pr;
-				next PROJECT;
-			}
-			# If the dir is there, we just walk one step down the trie.
-			$ref = $ref->{$dir};
-		}
-		# we ran out of trie
-		# (shouldn't happen: it's either no match, or end marker)
-		push @filtered, $pr;
-	}
-
-	return @filtered;
-}
-
-# note: fill_project_list_info must be run first,
-# for 'descr_long' and 'ctags' to be filled
-sub search_projects_list {
-	my ($projlist, %opts) = @_;
-	my $tagfilter  = $opts{'tagfilter'};
-	my $search_re = $opts{'search_regexp'};
-
-	return @$projlist
-		unless ($tagfilter || $search_re);
-
-	# searching projects require filling to be run before it;
-	fill_project_list_info($projlist,
-	                       $tagfilter  ? 'ctags' : (),
-	                       $search_re ? ('path', 'descr') : ());
-	my @projects;
- PROJECT:
-	foreach my $pr (@$projlist) {
-
-		if ($tagfilter) {
-			next unless ref($pr->{'ctags'}) eq 'HASH';
-			next unless
-				grep { lc($_) eq lc($tagfilter) } keys %{$pr->{'ctags'}};
-		}
-
-		if ($search_re) {
-			next unless
-				$pr->{'path'} =~ /$search_re/ ||
-				$pr->{'descr_long'} =~ /$search_re/;
-		}
-
-		push @projects, $pr;
-	}
-
-	return @projects;
-}
-
-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',
-	     map { "refs/$_" } get_branch_refs ()) 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);
-}
-
-# Implementation note: when a single remote is wanted, we cannot use 'git
-# remote show -n' because that command always work (assuming it's a remote URL
-# if it's not defined), and we cannot use 'git remote show' because that would
-# try to make a network roundtrip. So the only way to find if that particular
-# remote is defined is to walk the list provided by 'git remote -v' and stop if
-# and when we find what we want.
-sub git_get_remotes_list {
-	my $wanted = shift;
-	my %remotes = ();
-
-	open my $fd, '-|' , git_cmd(), 'remote', '-v';
-	return unless $fd;
-	while (my $remote = <$fd>) {
-		chomp $remote;
-		$remote =~ s!\t(.*?)\s+\((\w+)\)$!!;
-		next if $wanted and not $remote eq $wanted;
-		my ($url, $key) = ($1, $2);
-
-		$remotes{$remote} ||= { 'heads' => () };
-		$remotes{$remote}{$key} = $url;
-	}
-	close $fd or return;
-	return wantarray ? %remotes : \%remotes;
-}
-
-# Takes a hash of remotes as first parameter and fills it by adding the
-# available remote heads for each of the indicated remotes.
-sub fill_remote_heads {
-	my $remotes = shift;
-	my @heads = map { "remotes/$_" } keys %$remotes;
-	my @remoteheads = git_get_heads_list(undef, @heads);
-	foreach my $remote (keys %$remotes) {
-		$remotes->{$remote}{'heads'} = [ grep {
-			$_->{'name'} =~ s!^$remote/!!
-			} @remoteheads ];
-	}
-}
-
-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!^($oid_regex)\srefs/($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, $sec;
-
-	my ($tz_sign, $tz_hour, $tz_min) =
-		($tz =~ m/^([-+])(\d\d)(\d\d)$/);
-	$tz_sign = ($tz_sign eq '-' ? -1 : +1);
-	my $local = $epoch + $tz_sign*((($tz_hour*60) + $tz_min)*60);
-	($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 ($oid_regex)$/) {
-			$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{'author_epoch'} = $2;
-			$tag{'author_tz'} = $3;
-			if ($tag{'author'} =~ m/^([^<]+) <([^>]*)>/) {
-				$tag{'author_name'}  = $1;
-				$tag{'author_email'} = $2;
-			} else {
-				$tag{'author_name'} = $tag{'author'};
-			}
-		} elsif ($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/^$oid_regex/) {
-		return;
-	}
-	($co{'id'}, my @parents) = split ' ', $header;
-	while (my $line = shift @commit_lines) {
-		last if $line eq "\n";
-		if ($line =~ m/^tree ($oid_regex)$/) {
-			$co{'tree'} = $1;
-		} elsif ((!defined $withparents) && ($line =~ m/^parent ($oid_regex)$/)) {
-			push @parents, $1;
-		} elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
-			$co{'author'} = to_utf8($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'} = to_utf8($1);
-			$co{'committer_epoch'} = $2;
-			$co{'committer_tz'} = $3;
-			if ($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 (! defined $co{'title'} || $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",
-		$commit_id,
-		"--",
-		or die_error(500, "Open git-rev-list failed");
-	%co = parse_commit_text(<$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(500, "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 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}) ($oid_regex) ($oid_regex) (.)([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} )+)((?:$oid_regex )+)([a-zA-Z]+)\t(.*)$//) {
-		$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/^($oid_regex)$/) {
-		$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 $line = shift;
-	my %opts = @_;
-	my %res;
-
-	if ($opts{'-l'}) {
-		#'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa   16717	panic.c'
-		$line =~ m/^([0-9]+) (.+) ($oid_regex) +(-|[0-9]+)\t(.+)$/s;
-
-		$res{'mode'} = $1;
-		$res{'type'} = $2;
-		$res{'hash'} = $3;
-		$res{'size'} = $4;
-		if ($opts{'-z'}) {
-			$res{'name'} = $5;
-		} else {
-			$res{'name'} = unquote($5);
-		}
-	} else {
-		#'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa	panic.c'
-		$line =~ m/^([0-9]+) (.+) ($oid_regex)\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, @classes) = @_;
-	@classes = get_branch_refs() unless @classes;
-	my @patterns = map { "refs/$_" } @classes;
-	my @headslist;
-
-	open my $fd, '-|', git_cmd(), 'for-each-ref',
-		($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
-		'--format=%(objectname) %(refname) %(subject)%00%(committer)',
-		@patterns
-		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;
-		my $strip_refs = join '|', map { quotemeta } get_branch_refs();
-		$name =~ s!^refs/($strip_refs|remotes)/!!;
-		$ref_item{'name'} = $name;
-		# for refs neither in 'heads' nor 'remotes' we want to
-		# show their ref dir
-		my $ref_dir = (defined $1) ? $1 : '';
-		if ($ref_dir ne '' and $ref_dir ne 'heads' and $ref_dir ne 'remotes') {
-		    $ref_item{'name'} .= ' (' . $ref_dir . ')';
-		}
-
-		$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);
-}
-
-# assume that file exists
-sub insert_file {
-	my $filename = shift;
-
-	open my $fd, '<', $filename;
-	print map { to_utf8($_) } <$fd>;
-	close $fd;
-}
-
-## ......................................................................
-## mimetype related functions
-
-sub mimetype_guess_file {
-	my $filename = shift;
-	my $mimemap = shift;
-	-r $mimemap or return undef;
-
-	my %mimemap;
-	open(my $mh, '<', $mimemap) or return undef;
-	while (<$mh>) {
-		next if m/^#/; # skip comments
-		my ($mimetype, @exts) = split(/\s+/);
-		foreach my $ext (@exts) {
-			$mimemap{$ext} = $mimetype;
-		}
-	}
-	close($mh);
-
-	$filename =~ /\.([^.]*)$/;
-	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';
-	} 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$/i) {
-		return 'image/jpeg';
-	} else {
-		return 'application/octet-stream';
-	}
-}
-
-sub blob_contenttype {
-	my ($fd, $file_name, $type) = @_;
-
-	$type ||= blob_mimetype($fd, $file_name);
-	if ($type eq 'text/plain' && defined $default_text_plain_charset) {
-		$type .= "; charset=$default_text_plain_charset";
-	}
-
-	return $type;
-}
-
-# guess file syntax for syntax highlighting; return undef if no highlighting
-# the name of syntax can (in the future) depend on syntax highlighter used
-sub guess_file_syntax {
-	my ($highlight, $file_name) = @_;
-	return undef unless ($highlight && defined $file_name);
-	my $basename = basename($file_name, '.in');
-	return $highlight_basename{$basename}
-		if exists $highlight_basename{$basename};
-
-	$basename =~ /\.([^.]*)$/;
-	my $ext = $1 or return undef;
-	return $highlight_ext{$ext}
-		if exists $highlight_ext{$ext};
-
-	return undef;
-}
-
-# run highlighter and return FD of its output,
-# or return original FD if no highlighting
-sub run_highlighter {
-	my ($fd, $highlight, $syntax) = @_;
-	return $fd unless ($highlight);
-
-	close $fd;
-	my $syntax_arg = (defined $syntax) ? "--syntax $syntax" : "--force";
-	open $fd, quote_command(git_cmd(), "cat-file", "blob", $hash)." | ".
-	          quote_command($^X, '-CO', '-MEncode=decode,FB_DEFAULT', '-pse',
-	            '$_ = decode($fe, $_, FB_DEFAULT) if !utf8::decode($_);',
-	            '--', "-fe=$fallback_encoding")." | ".
-	          quote_command($highlight_bin).
-	          " --replace-tabs=8 --fragment $syntax_arg |"
-		or die_error(500, "Couldn't open file or run syntax highlighter");
-	return $fd;
-}
-
-## ======================================================================
-## functions printing HTML: header, footer, error page
-
-sub get_page_title {
-	my $title = to_utf8($site_name);
-
-	unless (defined $project) {
-		if (defined $project_filter) {
-			$title .= " - projects in '" . esc_path($project_filter) . "'";
-		}
-		return $title;
-	}
-	$title .= " - " . to_utf8($project);
-
-	return $title unless (defined $action);
-	$title .= "/$action"; # $action is US-ASCII (7bit ASCII)
-
-	return $title unless (defined $file_name);
-	$title .= " - " . esc_path($file_name);
-	if ($action eq "tree" && $file_name !~ m|/$|) {
-		$title .= "/";
-	}
-
-	return $title;
-}
-
-sub get_content_type_html {
-	# 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) {
-		return 'application/xhtml+xml';
-	} else {
-		return 'text/html';
-	}
-}
-
-sub print_feed_meta {
-	if (defined $project) {
-		my %href_params = get_feed_info();
-		if (!exists $href_params{'-title'}) {
-			$href_params{'-title'} = 'log';
-		}
-
-		foreach my $format (qw(RSS Atom)) {
-			my $type = lc($format);
-			my %link_attr = (
-				'-rel' => 'alternate',
-				'-title' => esc_attr("$project - $href_params{'-title'} - $format feed"),
-				'-type' => "application/$type+xml"
-			);
-
-			$href_params{'extra_options'} = undef;
-			$href_params{'action'} = $type;
-			$link_attr{'-href'} = esc_attr(href(%href_params));
-			print "<link ".
-			      "rel=\"$link_attr{'-rel'}\" ".
-			      "title=\"$link_attr{'-title'}\" ".
-			      "href=\"$link_attr{'-href'}\" ".
-			      "type=\"$link_attr{'-type'}\" ".
-			      "/>\n";
-
-			$href_params{'extra_options'} = '--no-merges';
-			$link_attr{'-href'} = esc_attr(href(%href_params));
-			$link_attr{'-title'} .= ' (no merges)';
-			print "<link ".
-			      "rel=\"$link_attr{'-rel'}\" ".
-			      "title=\"$link_attr{'-title'}\" ".
-			      "href=\"$link_attr{'-href'}\" ".
-			      "type=\"$link_attr{'-type'}\" ".
-			      "/>\n";
-		}
-
-	} else {
-		printf('<link rel="alternate" title="%s projects list" '.
-		       'href="%s" type="text/plain; charset=utf-8" />'."\n",
-		       esc_attr($site_name),
-		       esc_attr(href(project=>undef, action=>"project_index")));
-		printf('<link rel="alternate" title="%s projects feeds" '.
-		       'href="%s" type="text/x-opml" />'."\n",
-		       esc_attr($site_name),
-		       esc_attr(href(project=>undef, action=>"opml")));
-	}
-}
-
-sub print_header_links {
-	my $status = shift;
-
-	# print out each stylesheet that exist, providing backwards capability
-	# for those people who defined $stylesheet in a config file
-	if (defined $stylesheet) {
-		print '<link rel="stylesheet" type="text/css" href="'.esc_url($stylesheet).'"/>'."\n";
-	} else {
-		foreach my $stylesheet (@stylesheets) {
-			next unless $stylesheet;
-			print '<link rel="stylesheet" type="text/css" href="'.esc_url($stylesheet).'"/>'."\n";
-		}
-	}
-	print_feed_meta()
-		if ($status eq '200 OK');
-	if (defined $favicon) {
-		print qq(<link rel="shortcut icon" href=").esc_url($favicon).qq(" type="image/png" />\n);
-	}
-}
-
-sub print_nav_breadcrumbs_path {
-	my $dirprefix = undef;
-	while (my $part = shift) {
-		$dirprefix .= "/" if defined $dirprefix;
-		$dirprefix .= $part;
-		print $cgi->a({-href => href(project => undef,
-		                             project_filter => $dirprefix,
-		                             action => "project_list")},
-			      esc_html($part)) . " / ";
-	}
-}
-
-sub print_nav_breadcrumbs {
-	my %opts = @_;
-
-	for my $crumb (@extra_breadcrumbs, [ $home_link_str => $home_link ]) {
-		print $cgi->a({-href => esc_url($crumb->[1])}, $crumb->[0]) . " / ";
-	}
-	if (defined $project) {
-		my @dirname = split '/', $project;
-		my $projectbasename = pop @dirname;
-		print_nav_breadcrumbs_path(@dirname);
-		print $cgi->a({-href => href(action=>"summary")}, esc_html($projectbasename));
-		if (defined $action) {
-			my $action_print = $action ;
-			if (defined $opts{-action_extra}) {
-				$action_print = $cgi->a({-href => href(action=>$action)},
-					$action);
-			}
-			print " / $action_print";
-		}
-		if (defined $opts{-action_extra}) {
-			print " / $opts{-action_extra}";
-		}
-		print "\n";
-	} elsif (defined $project_filter) {
-		print_nav_breadcrumbs_path(split '/', $project_filter);
-	}
-}
-
-sub print_search_form {
-	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);
-	}
-	print $cgi->start_form(-method => "get", -action => $action) .
-	      "<div class=\"search\">\n" .
-	      (!$use_pathinfo &&
-	      $cgi->input({-name=>"p", -value=>$project, -type=>"hidden"}) . "\n") .
-	      $cgi->input({-name=>"a", -value=>"search", -type=>"hidden"}) . "\n" .
-	      $cgi->input({-name=>"h", -value=>$search_hash, -type=>"hidden"}) . "\n" .
-	      $cgi->popup_menu(-name => 'st', -default => 'commit',
-	                       -values => ['commit', 'grep', 'author', 'committer', 'pickaxe']) .
-	      " " . $cgi->a({-href => href(action=>"search_help"),
-			     -title => "search help" }, "?") . " search:\n",
-	      $cgi->textfield(-name => "s", -value => $searchtext, -override => 1) . "\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_header_html {
-	my $status = shift || "200 OK";
-	my $expires = shift;
-	my %opts = @_;
-
-	my $title = get_page_title();
-	my $content_type = get_content_type_html();
-	print $cgi->header(-type=>$content_type, -charset => 'utf-8',
-	                   -status=> $status, -expires => $expires)
-		unless ($opts{'-no_http_header'});
-	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
-	# the stylesheet, favicon etc urls won't work correctly with path_info
-	# unless we set the appropriate base URL
-	if ($ENV{'PATH_INFO'}) {
-		print "<base href=\"".esc_url($base_url)."\" />\n";
-	}
-	print_header_links($status);
-
-	if (defined $site_html_head_string) {
-		print to_utf8($site_html_head_string);
-	}
-
-	print "</head>\n" .
-	      "<body>\n";
-
-	if (defined $site_header && -f $site_header) {
-		insert_file($site_header);
-	}
-
-	print "<div class=\"page_header\">\n";
-	if (defined $logo) {
-		print $cgi->a({-href => esc_url($logo_url),
-		               -title => $logo_label},
-		              $cgi->img({-src => esc_url($logo),
-		                         -width => 72, -height => 27,
-		                         -alt => "git",
-		                         -class => "logo"}));
-	}
-	print_nav_breadcrumbs(%opts);
-	print "</div>\n";
-
-	my $have_search = gitweb_check_feature('search');
-	if (defined $project && $have_search) {
-		print_search_form();
-	}
-}
-
-sub git_footer_html {
-	my $feed_class = 'rss_logo';
-
-	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";
-		}
-
-		my %href_params = get_feed_info();
-		if (!%href_params) {
-			$feed_class .= ' generic';
-		}
-		$href_params{'-title'} ||= 'log';
-
-		foreach my $format (qw(RSS Atom)) {
-			$href_params{'action'} = lc($format);
-			print $cgi->a({-href => href(%href_params),
-			              -title => "$href_params{'-title'} $format feed",
-			              -class => $feed_class}, $format)."\n";
-		}
-
-	} else {
-		print $cgi->a({-href => href(project=>undef, action=>"opml",
-		                             project_filter => $project_filter),
-		              -class => $feed_class}, "OPML") . " ";
-		print $cgi->a({-href => href(project=>undef, action=>"project_index",
-		                             project_filter => $project_filter),
-		              -class => $feed_class}, "TXT") . "\n";
-	}
-	print "</div>\n"; # class="page_footer"
-
-	if (defined $t0 && gitweb_check_feature('timed')) {
-		print "<div id=\"generating_info\">\n";
-		print 'This page took '.
-		      '<span id="generating_time" class="time_span">'.
-		      tv_interval($t0, [ gettimeofday() ]).
-		      ' seconds </span>'.
-		      ' and '.
-		      '<span id="generating_cmd">'.
-		      $number_of_git_cmds.
-		      '</span> git commands '.
-		      " to generate.\n";
-		print "</div>\n"; # class="page_footer"
-	}
-
-	if (defined $site_footer && -f $site_footer) {
-		insert_file($site_footer);
-	}
-
-	print qq!<script type="text/javascript" src="!.esc_url($javascript).qq!"></script>\n!;
-	if (defined $action &&
-	    $action eq 'blame_incremental') {
-		print qq!<script type="text/javascript">\n!.
-		      qq!startBlame("!. esc_attr(href(action=>"blame_data", -replay=>1)) .qq!",\n!.
-		      qq!           "!. esc_attr(href()) .qq!");\n!.
-		      qq!</script>\n!;
-	} else {
-		my ($jstimezone, $tz_cookie, $datetime_class) =
-			gitweb_get_feature('javascript-timezone');
-
-		print qq!<script type="text/javascript">\n!.
-		      qq!window.onload = function () {\n!;
-		if (gitweb_check_feature('javascript-actions')) {
-			print qq!	fixLinks();\n!;
-		}
-		if ($jstimezone && $tz_cookie && $datetime_class) {
-			print qq!	var tz_cookie = { name: '$tz_cookie', expires: 14, path: '/' };\n!. # in days
-			      qq!	onloadTZSetup('$jstimezone', tz_cookie, '$datetime_class');\n!;
-		}
-		print qq!};\n!.
-		      qq!</script>\n!;
-	}
-
-	print "</body>\n" .
-	      "</html>";
-}
-
-# die_error(<http_status_code>, <error_message>[, <detailed_html_description>])
-# Example: die_error(404, 'Hash not found')
-# By convention, use the following status codes (as defined in RFC 2616):
-# 400: Invalid or missing CGI parameters, or
-#      requested object exists but has wrong type.
-# 403: Requested feature (like "pickaxe" or "snapshot") not enabled on
-#      this server or project.
-# 404: Requested object/revision/project doesn't exist.
-# 500: The server isn't configured properly, or
-#      an internal error occurred (e.g. failed assertions caused by bugs), or
-#      an unknown error occurred (e.g. the git binary died unexpectedly).
-# 503: The server is currently unavailable (because it is overloaded,
-#      or down for maintenance).  Generally, this is a temporary state.
-sub die_error {
-	my $status = shift || 500;
-	my $error = esc_html(shift) || "Internal Server Error";
-	my $extra = shift;
-	my %opts = @_;
-
-	my %http_responses = (
-		400 => '400 Bad Request',
-		403 => '403 Forbidden',
-		404 => '404 Not Found',
-		500 => '500 Internal Server Error',
-		503 => '503 Service Unavailable',
-	);
-	git_header_html($http_responses{$status}, undef, %opts);
-	print <<EOF;
-<div class="page_body">
-<br /><br />
-$status - $error
-<br />
-EOF
-	if (defined $extra) {
-		print "<hr />\n" .
-		      "$extra\n";
-	}
-	print "</div>\n";
-
-	git_footer_html();
-	goto DONE_GITWEB
-		unless ($opts{'-error_handler'});
-}
-
-## ----------------------------------------------------------------------
-## functions printing or outputting HTML: navigation
-
-sub git_print_page_nav {
-	my ($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;
-
-	my @actions = gitweb_get_feature('actions');
-	my %repl = (
-		'%' => '%',
-		'n' => $project,         # project name
-		'f' => $git_dir,         # project path within filesystem
-		'h' => $treehead || '',  # current hash ('h' parameter)
-		'b' => $treebase || '',  # hash base ('hb' parameter)
-	);
-	while (@actions) {
-		my ($label, $link, $pos) = splice(@actions,0,3);
-		# insert
-		@navs = map { $_ eq $pos ? ($_, $label) : $_ } @navs;
-		# munch munch
-		$link =~ s/%([%nfhb])/$repl{$1}/g;
-		$arg{$label}{'_href'} = $link;
-	}
-
-	print "<div class=\"page_nav\">\n" .
-		(join " | ",
-		 map { $_ eq $current ?
-		       $_ : $cgi->a({-href => ($arg{$_}{_href} ? $arg{$_}{_href} : href(%{$arg{$_}}))}, "$_")
-		 } @navs);
-	print "<br/>\n$extra<br/>\n" .
-	      "</div>\n";
-}
-
-# returns a submenu for the navigation of the refs views (tags, heads,
-# remotes) with the current view disabled and the remotes view only
-# available if the feature is enabled
-sub format_ref_views {
-	my ($current) = @_;
-	my @ref_views = qw{tags heads};
-	push @ref_views, 'remotes' if gitweb_check_feature('remote_heads');
-	return join " | ", map {
-		$_ eq $current ? $_ :
-		$cgi->a({-href => href(action=>$_)}, $_)
-	} @ref_views
-}
-
-sub format_paging_nav {
-	my ($action, $page, $has_next_link) = @_;
-	my $paging_nav;
-
-
-	if ($page > 0) {
-		$paging_nav .=
-			$cgi->a({-href => href(-replay=>1, page=>undef)}, "first") .
-			" &sdot; " .
-			$cgi->a({-href => href(-replay=>1, page=>$page-1),
-			         -accesskey => "p", -title => "Alt-p"}, "prev");
-	} else {
-		$paging_nav .= "first &sdot; prev";
-	}
-
-	if ($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 : $action) .
-	      "\n</div>\n";
-}
-
-sub format_repo_url {
-	my ($name, $url) = @_;
-	return "<tr class=\"metadata_url\"><td>$name</td><td>$url</td></tr>\n";
-}
-
-# Group output by placing it in a DIV element and adding a header.
-# Options for start_div() can be provided by passing a hash reference as the
-# first parameter to the function.
-# Options to git_print_header_div() can be provided by passing an array
-# reference. This must follow the options to start_div if they are present.
-# The content can be a scalar, which is output as-is, a scalar reference, which
-# is output after html escaping, an IO handle passed either as *handle or
-# *handle{IO}, or a function reference. In the latter case all following
-# parameters will be taken as argument to the content function call.
-sub git_print_section {
-	my ($div_args, $header_args, $content);
-	my $arg = shift;
-	if (ref($arg) eq 'HASH') {
-		$div_args = $arg;
-		$arg = shift;
-	}
-	if (ref($arg) eq 'ARRAY') {
-		$header_args = $arg;
-		$arg = shift;
-	}
-	$content = $arg;
-
-	print $cgi->start_div($div_args);
-	git_print_header_div(@$header_args);
-
-	if (ref($content) eq 'CODE') {
-		$content->(@_);
-	} elsif (ref($content) eq 'SCALAR') {
-		print esc_html($$content);
-	} elsif (ref($content) eq 'GLOB' or ref($content) eq 'IO::Handle') {
-		print <$content>;
-	} elsif (!ref($content) && defined($content)) {
-		print $content;
-	}
-
-	print $cgi->end_div;
-}
-
-sub format_timestamp_html {
-	my $date = shift;
-	my $strtime = $date->{'rfc2822'};
-
-	my (undef, undef, $datetime_class) =
-		gitweb_get_feature('javascript-timezone');
-	if ($datetime_class) {
-		$strtime = qq!<span class="$datetime_class">$strtime</span>!;
-	}
-
-	my $localtime_format = '(%02d:%02d %s)';
-	if ($date->{'hour_local'} < 6) {
-		$localtime_format = '(<span class="atnight">%02d:%02d</span> %s)';
-	}
-	$strtime .= ' ' .
-	            sprintf($localtime_format,
-	                    $date->{'hour_local'}, $date->{'minute_local'}, $date->{'tz_local'});
-
-	return $strtime;
-}
-
-# Outputs the author name and date in long form
-sub git_print_authorship {
-	my $co = shift;
-	my %opts = @_;
-	my $tag = $opts{-tag} || 'div';
-	my $author = $co->{'author_name'};
-
-	my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
-	print "<$tag class=\"author_date\">" .
-	      format_search_author($author, "author", esc_html($author)) .
-	      " [".format_timestamp_html(\%ad)."]".
-	      git_get_avatar($co->{'author_email'}, -pad_before => 1) .
-	      "</$tag>\n";
-}
-
-# Outputs table rows containing the full author or committer information,
-# in the format expected for 'commit' view (& similar).
-# Parameters are a commit hash reference, followed by the list of people
-# to output information for. If the list is empty it defaults to both
-# author and committer.
-sub git_print_authorship_rows {
-	my $co = shift;
-	# too bad we can't use @people = @_ || ('author', 'committer')
-	my @people = @_;
-	@people = ('author', 'committer') unless @people;
-	foreach my $who (@people) {
-		my %wd = parse_date($co->{"${who}_epoch"}, $co->{"${who}_tz"});
-		print "<tr><td>$who</td><td>" .
-		      format_search_author($co->{"${who}_name"}, $who,
-		                           esc_html($co->{"${who}_name"})) . " " .
-		      format_search_author($co->{"${who}_email"}, $who,
-		                           esc_html("<" . $co->{"${who}_email"} . ">")) .
-		      "</td><td rowspan=\"2\">" .
-		      git_get_avatar($co->{"${who}_email"}, -size => 'double') .
-		      "</td></tr>\n" .
-		      "<tr>" .
-		      "<td></td><td>" .
-		      format_timestamp_html(\%wd) .
-		      "</td>" .
-		      "</tr>\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 {
-	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 $skip_blank_line = 0;
-	foreach my $line (@$log) {
-		if ($line =~ m/^\s*([A-Z][-A-Za-z]*-([Bb]y|[Tt]o)|C[Cc]|(Clos|Fix)es): /) {
-			if (! $opts{'-remove_signoff'}) {
-				print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
-				$skip_blank_line = 1;
-			}
-			next;
-		}
-
-		if ($line =~ m,\s*([a-z]*link): (https?://\S+),i) {
-			if (! $opts{'-remove_signoff'}) {
-				print "<span class=\"signoff\">" . esc_html($1) . ": " .
-					"<a href=\"" . esc_html($2) . "\">" . esc_html($2) . "</a>" .
-					"</span><br/>\n";
-				$skip_blank_line = 1;
-			}
-			next;
-		}
-
-		# print only one empty line
-		# do not print empty line after signoff
-		if ($line eq "") {
-			next if ($skip_blank_line);
-			$skip_blank_line = 1;
-		} else {
-			$skip_blank_line = 0;
-		}
-
-		print format_log_line_html($line) . "<br/>\n";
-	}
-
-	if ($opts{'-final_empty_line'}) {
-		# end with single empty line
-		print "<br/>\n" unless $skip_blank_line;
-	}
-}
-
-# 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 $/ = undef;
-		$link_target = <$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, $basedir) = @_;
-
-	# absolute symlinks (beginning with '/') cannot be normalized
-	return if (substr($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 (exists $t->{'size'}) {
-		print "<td class=\"size\">$t->{'size'}</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);
-				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) || $diffinfo->{'to_id'} eq ('0' x 64);
-}
-
-# 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\">" .
-				      $cgi->a({-href => href(-anchor=>"patch$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 $diff->{'from_mode'};
-			if (S_ISREG($from_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 $cgi->a({-href => href(-anchor=>"patch$patchno")},
-				              "patch") .
-				      " | ";
-			}
-			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 $cgi->a({-href => href(-anchor=>"patch$patchno")},
-				              "patch") .
-				      " | ";
-			}
-			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 $cgi->a({-href => href(-anchor=>"patch$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 $cgi->a({-href => href(-anchor=>"patch$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 $has_header;
-	print "</table>\n";
-}
-
-# Print context lines and then rem/add lines in a side-by-side manner.
-sub print_sidebyside_diff_lines {
-	my ($ctx, $rem, $add) = @_;
-
-	# print context block before add/rem block
-	if (@$ctx) {
-		print join '',
-			'<div class="chunk_block ctx">',
-				'<div class="old">',
-				@$ctx,
-				'</div>',
-				'<div class="new">',
-				@$ctx,
-				'</div>',
-			'</div>';
-	}
-
-	if (!@$add) {
-		# pure removal
-		print join '',
-			'<div class="chunk_block rem">',
-				'<div class="old">',
-				@$rem,
-				'</div>',
-			'</div>';
-	} elsif (!@$rem) {
-		# pure addition
-		print join '',
-			'<div class="chunk_block add">',
-				'<div class="new">',
-				@$add,
-				'</div>',
-			'</div>';
-	} else {
-		print join '',
-			'<div class="chunk_block chg">',
-				'<div class="old">',
-				@$rem,
-				'</div>',
-				'<div class="new">',
-				@$add,
-				'</div>',
-			'</div>';
-	}
-}
-
-# Print context lines and then rem/add lines in inline manner.
-sub print_inline_diff_lines {
-	my ($ctx, $rem, $add) = @_;
-
-	print @$ctx, @$rem, @$add;
-}
-
-# Format removed and added line, mark changed part and HTML-format them.
-# Implementation is based on contrib/diff-highlight
-sub format_rem_add_lines_pair {
-	my ($rem, $add, $num_parents) = @_;
-
-	# We need to untabify lines before split()'ing them;
-	# otherwise offsets would be invalid.
-	chomp $rem;
-	chomp $add;
-	$rem = untabify($rem);
-	$add = untabify($add);
-
-	my @rem = split(//, $rem);
-	my @add = split(//, $add);
-	my ($esc_rem, $esc_add);
-	# Ignore leading +/- characters for each parent.
-	my ($prefix_len, $suffix_len) = ($num_parents, 0);
-	my ($prefix_has_nonspace, $suffix_has_nonspace);
-
-	my $shorter = (@rem < @add) ? @rem : @add;
-	while ($prefix_len < $shorter) {
-		last if ($rem[$prefix_len] ne $add[$prefix_len]);
-
-		$prefix_has_nonspace = 1 if ($rem[$prefix_len] !~ /\s/);
-		$prefix_len++;
-	}
-
-	while ($prefix_len + $suffix_len < $shorter) {
-		last if ($rem[-1 - $suffix_len] ne $add[-1 - $suffix_len]);
-
-		$suffix_has_nonspace = 1 if ($rem[-1 - $suffix_len] !~ /\s/);
-		$suffix_len++;
-	}
-
-	# Mark lines that are different from each other, but have some common
-	# part that isn't whitespace.  If lines are completely different, don't
-	# mark them because that would make output unreadable, especially if
-	# diff consists of multiple lines.
-	if ($prefix_has_nonspace || $suffix_has_nonspace) {
-		$esc_rem = esc_html_hl_regions($rem, 'marked',
-		        [$prefix_len, @rem - $suffix_len], -nbsp=>1);
-		$esc_add = esc_html_hl_regions($add, 'marked',
-		        [$prefix_len, @add - $suffix_len], -nbsp=>1);
-	} else {
-		$esc_rem = esc_html($rem, -nbsp=>1);
-		$esc_add = esc_html($add, -nbsp=>1);
-	}
-
-	return format_diff_line(\$esc_rem, 'rem'),
-	       format_diff_line(\$esc_add, 'add');
-}
-
-# HTML-format diff context, removed and added lines.
-sub format_ctx_rem_add_lines {
-	my ($ctx, $rem, $add, $num_parents) = @_;
-	my (@new_ctx, @new_rem, @new_add);
-	my $can_highlight = 0;
-	my $is_combined = ($num_parents > 1);
-
-	# Highlight if every removed line has a corresponding added line.
-	if (@$add > 0 && @$add == @$rem) {
-		$can_highlight = 1;
-
-		# Highlight lines in combined diff only if the chunk contains
-		# diff between the same version, e.g.
-		#
-		#    - a
-		#   -  b
-		#    + c
-		#   +  d
-		#
-		# Otherwise the highlighting would be confusing.
-		if ($is_combined) {
-			for (my $i = 0; $i < @$add; $i++) {
-				my $prefix_rem = substr($rem->[$i], 0, $num_parents);
-				my $prefix_add = substr($add->[$i], 0, $num_parents);
-
-				$prefix_rem =~ s/-/+/g;
-
-				if ($prefix_rem ne $prefix_add) {
-					$can_highlight = 0;
-					last;
-				}
-			}
-		}
-	}
-
-	if ($can_highlight) {
-		for (my $i = 0; $i < @$add; $i++) {
-			my ($line_rem, $line_add) = format_rem_add_lines_pair(
-			        $rem->[$i], $add->[$i], $num_parents);
-			push @new_rem, $line_rem;
-			push @new_add, $line_add;
-		}
-	} else {
-		@new_rem = map { format_diff_line($_, 'rem') } @$rem;
-		@new_add = map { format_diff_line($_, 'add') } @$add;
-	}
-
-	@new_ctx = map { format_diff_line($_, 'ctx') } @$ctx;
-
-	return (\@new_ctx, \@new_rem, \@new_add);
-}
-
-# Print context lines and then rem/add lines.
-sub print_diff_lines {
-	my ($ctx, $rem, $add, $diff_style, $num_parents) = @_;
-	my $is_combined = $num_parents > 1;
-
-	($ctx, $rem, $add) = format_ctx_rem_add_lines($ctx, $rem, $add,
-	        $num_parents);
-
-	if ($diff_style eq 'sidebyside' && !$is_combined) {
-		print_sidebyside_diff_lines($ctx, $rem, $add);
-	} else {
-		# default 'inline' style and unknown styles
-		print_inline_diff_lines($ctx, $rem, $add);
-	}
-}
-
-sub print_diff_chunk {
-	my ($diff_style, $num_parents, $from, $to, @chunk) = @_;
-	my (@ctx, @rem, @add);
-
-	# The class of the previous line.
-	my $prev_class = '';
-
-	return unless @chunk;
-
-	# incomplete last line might be among removed or added lines,
-	# or both, or among context lines: find which
-	for (my $i = 1; $i < @chunk; $i++) {
-		if ($chunk[$i][0] eq 'incomplete') {
-			$chunk[$i][0] = $chunk[$i-1][0];
-		}
-	}
-
-	# guardian
-	push @chunk, ["", ""];
-
-	foreach my $line_info (@chunk) {
-		my ($class, $line) = @$line_info;
-
-		# print chunk headers
-		if ($class && $class eq 'chunk_header') {
-			print format_diff_line($line, $class, $from, $to);
-			next;
-		}
-
-		## print from accumulator when have some add/rem lines or end
-		# of chunk (flush context lines), or when have add and rem
-		# lines and new block is reached (otherwise add/rem lines could
-		# be reordered)
-		if (!$class || ((@rem || @add) && $class eq 'ctx') ||
-		    (@rem && @add && $class ne $prev_class)) {
-			print_diff_lines(\@ctx, \@rem, \@add,
-		                         $diff_style, $num_parents);
-			@ctx = @rem = @add = ();
-		}
-
-		## adding lines to accumulator
-		# guardian value
-		last unless $line;
-		# rem, add or change
-		if ($class eq 'rem') {
-			push @rem, $line;
-		} elsif ($class eq 'add') {
-			push @add, $line;
-		}
-		# context line
-		if ($class eq 'ctx') {
-			push @ctx, $line;
-		}
-
-		$prev_class = $class;
-	}
-}
-
-sub git_patchset_body {
-	my ($fd, $diff_style, $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 $to_name;
-	my (%from, %to);
-	my @chunk; # for side-by-side diff
-
-	print "<div class=\"patchset\">\n";
-
-	# skip to first patch
-	while ($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 /);
-
-			my $class = diff_line_class($patch_line, \%from, \%to);
-
-			if ($class eq 'chunk_header') {
-				print_diff_chunk($diff_style, scalar @hash_parents, \%from, \%to, @chunk);
-				@chunk = ();
-			}
-
-			push @chunk, [ $class, $patch_line ];
-		}
-
-	} continue {
-		if (@chunk) {
-			print_diff_chunk($diff_style, scalar @hash_parents, \%from, \%to, @chunk);
-			@chunk = ();
-		}
-		print "</div>\n"; # class="patch"
-	}
-
-	# for compact combined (--cc) format, with chunk and patch simplification
-	# the 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_search_form {
-	my ($searchtext, $search_use_regexp) = @_;
-
-	my $limit = '';
-	if ($project_filter) {
-		$limit = " in '$project_filter/'";
-	}
-
-	print "<div class=\"projsearch\">\n";
-	print $cgi->start_form(-method => 'get', -action => $my_uri) .
-	      $cgi->hidden(-name => 'a', -value => 'project_list')  . "\n";
-	print $cgi->hidden(-name => 'pf', -value => $project_filter). "\n"
-		if (defined $project_filter);
-	print $cgi->textfield(-name => 's', -value => $searchtext,
-	                      -title => "Search project by name and description$limit",
-	                      -size => 60) . "\n" .
-	      "<span title=\"Extended regular expression\">" .
-	      $cgi->checkbox(-name => 'sr', -value => 1, -label => 're',
-	                     -checked => $search_use_regexp) .
-	      "</span>\n" .
-	      $cgi->submit(-name => 'btnS', -value => 'Search') .
-	      $cgi->end_form() . "\n" .
-	      $cgi->a({-href => href(project => undef, searchtext => undef,
-	                             project_filter => $project_filter)},
-	              esc_html("List all projects$limit")) . "<br />\n";
-	print "</div>\n";
-}
-
-# entry for given @keys needs filling if at least one of keys in list
-# is not present in %$project_info
-sub project_info_needs_filling {
-	my ($project_info, @keys) = @_;
-
-	# return List::MoreUtils::any { !exists $project_info->{$_} } @keys;
-	foreach my $key (@keys) {
-		if (!exists $project_info->{$key}) {
-			return 1;
-		}
-	}
-	return;
-}
-
-# fills project list info (age, description, owner, category, forks, etc.)
-# for each project in the list, removing invalid projects from
-# returned list, or fill only specified info.
-#
-# Invalid projects are removed from the returned list if and only if you
-# ask 'age' or 'age_string' to be filled, because they are the only fields
-# that run unconditionally git command that requires repository, and
-# therefore do always check if project repository is invalid.
-#
-# USAGE:
-# * fill_project_list_info(\@project_list, 'descr_long', 'ctags')
-#   ensures that 'descr_long' and 'ctags' fields are filled
-# * @project_list = fill_project_list_info(\@project_list)
-#   ensures that all fields are filled (and invalid projects removed)
-#
-# NOTE: modifies $projlist, but does not remove entries from it
-sub fill_project_list_info {
-	my ($projlist, @wanted_keys) = @_;
-	my @projects;
-	my $filter_set = sub { return @_; };
-	if (@wanted_keys) {
-		my %wanted_keys = map { $_ => 1 } @wanted_keys;
-		$filter_set = sub { return grep { $wanted_keys{$_} } @_; };
-	}
-
-	my $show_ctags = gitweb_check_feature('ctags');
- PROJECT:
-	foreach my $pr (@$projlist) {
-		if (project_info_needs_filling($pr, $filter_set->('age', 'age_string'))) {
-			my (@activity) = git_get_last_activity($pr->{'path'});
-			unless (@activity) {
-				next PROJECT;
-			}
-			($pr->{'age'}, $pr->{'age_string'}) = @activity;
-		}
-		if (project_info_needs_filling($pr, $filter_set->('descr', 'descr_long'))) {
-			my $descr = git_get_project_description($pr->{'path'}) || "";
-			$descr = to_utf8($descr);
-			$pr->{'descr_long'} = $descr;
-			$pr->{'descr'} = chop_str($descr, $projects_list_description_width, 5);
-		}
-		if (project_info_needs_filling($pr, $filter_set->('owner'))) {
-			$pr->{'owner'} = git_get_project_owner("$pr->{'path'}") || "";
-		}
-		if ($show_ctags &&
-		    project_info_needs_filling($pr, $filter_set->('ctags'))) {
-			$pr->{'ctags'} = git_get_project_ctags($pr->{'path'});
-		}
-		if ($projects_list_group_categories &&
-		    project_info_needs_filling($pr, $filter_set->('category'))) {
-			my $cat = git_get_project_category($pr->{'path'}) ||
-			                                   $project_list_default_category;
-			$pr->{'category'} = to_utf8($cat);
-		}
-
-		push @projects, $pr;
-	}
-
-	return @projects;
-}
-
-sub sort_projects_list {
-	my ($projlist, $order) = @_;
-
-	sub order_str {
-		my $key = shift;
-		return sub { $a->{$key} cmp $b->{$key} };
-	}
-
-	sub order_num_then_undef {
-		my $key = shift;
-		return sub {
-			defined $a->{$key} ?
-				(defined $b->{$key} ? $a->{$key} <=> $b->{$key} : -1) :
-				(defined $b->{$key} ? 1 : 0)
-		};
-	}
-
-	my %orderings = (
-		project => order_str('path'),
-		descr => order_str('descr_long'),
-		owner => order_str('owner'),
-		age => order_num_then_undef('age'),
-	);
-
-	my $ordering = $orderings{$order};
-	return defined $ordering ? sort $ordering @$projlist : @$projlist;
-}
-
-# returns a hash of categories, containing the list of project
-# belonging to each category
-sub build_projlist_by_category {
-	my ($projlist, $from, $to) = @_;
-	my %categories;
-
-	$from = 0 unless defined $from;
-	$to = $#$projlist if (!defined $to || $#$projlist < $to);
-
-	for (my $i = $from; $i <= $to; $i++) {
-		my $pr = $projlist->[$i];
-		push @{$categories{ $pr->{'category'} }}, $pr;
-	}
-
-	return wantarray ? %categories : \%categories;
-}
-
-# print 'sort by' <th> element, generating 'sort by $name' replay link
-# if that order is not selected
-sub print_sort_th {
-	print format_sort_th(@_);
-}
-
-sub format_sort_th {
-	my ($name, $order, $header) = @_;
-	my $sort_th = "";
-	$header ||= ucfirst($name);
-
-	if ($order eq $name) {
-		$sort_th .= "<th>$header</th>\n";
-	} else {
-		$sort_th .= "<th>" .
-		            $cgi->a({-href => href(-replay=>1, order=>$name),
-		                     -class => "header"}, $header) .
-		            "</th>\n";
-	}
-
-	return $sort_th;
-}
-
-sub git_project_list_rows {
-	my ($projlist, $from, $to, $check_forks) = @_;
-
-	$from = 0 unless defined $from;
-	$to = $#$projlist if (!defined $to || $#$projlist < $to);
-
-	my $alternate = 1;
-	for (my $i = $from; $i <= $to; $i++) {
-		my $pr = $projlist->[$i];
-
-		if ($alternate) {
-			print "<tr class=\"dark\">\n";
-		} else {
-			print "<tr class=\"light\">\n";
-		}
-		$alternate ^= 1;
-
-		if ($check_forks) {
-			print "<td>";
-			if ($pr->{'forks'}) {
-				my $nforks = scalar @{$pr->{'forks'}};
-				if ($nforks > 0) {
-					print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks"),
-					               -title => "$nforks forks"}, "+");
-				} else {
-					print $cgi->span({-title => "$nforks forks"}, "+");
-				}
-			}
-			print "</td>\n";
-		}
-		print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
-		                        -class => "list"},
-		                       esc_html_match_hl($pr->{'path'}, $search_regexp)) .
-		      "</td>\n" .
-		      "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
-		                        -class => "list",
-		                        -title => $pr->{'descr_long'}},
-		                        $search_regexp
-		                        ? esc_html_match_hl_chopped($pr->{'descr_long'},
-		                                                    $pr->{'descr'}, $search_regexp)
-		                        : esc_html($pr->{'descr'})) .
-		      "</td>\n";
-		unless ($omit_owner) {
-		        print "<td><i>" . chop_and_escape_str($pr->{'owner'}, 15) . "</i></td>\n";
-		}
-		unless ($omit_age_column) {
-		        print "<td class=\"". age_class($pr->{'age'}) . "\">" .
-		            (defined $pr->{'age_string'} ? $pr->{'age_string'} : "No commits") . "</td>\n";
-		}
-		print"<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";
-	}
-}
-
-sub git_project_list_body {
-	# actually uses global variable $project
-	my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
-	my @projects = @$projlist;
-
-	my $check_forks = gitweb_check_feature('forks');
-	my $show_ctags  = gitweb_check_feature('ctags');
-	my $tagfilter = $show_ctags ? $input_params{'ctag'} : undef;
-	$check_forks = undef
-		if ($tagfilter || $search_regexp);
-
-	# filtering out forks before filling info allows to do less work
-	@projects = filter_forks_from_projects_list(\@projects)
-		if ($check_forks);
-	# search_projects_list pre-fills required info
-	@projects = search_projects_list(\@projects,
-	                                 'search_regexp' => $search_regexp,
-	                                 'tagfilter'  => $tagfilter)
-		if ($tagfilter || $search_regexp);
-	# fill the rest
-	my @all_fields = ('descr', 'descr_long', 'ctags', 'category');
-	push @all_fields, ('age', 'age_string') unless($omit_age_column);
-	push @all_fields, 'owner' unless($omit_owner);
-	@projects = fill_project_list_info(\@projects, @all_fields);
-
-	$order ||= $default_projects_order;
-	$from = 0 unless defined $from;
-	$to = $#projects if (!defined $to || $#projects < $to);
-
-	# short circuit
-	if ($from > $to) {
-		print "<center>\n".
-		      "<b>No such projects found</b><br />\n".
-		      "Click ".$cgi->a({-href=>href(project=>undef)},"here")." to view all projects<br />\n".
-		      "</center>\n<br />\n";
-		return;
-	}
-
-	@projects = sort_projects_list(\@projects, $order);
-
-	if ($show_ctags) {
-		my $ctags = git_gather_all_ctags(\@projects);
-		my $cloud = git_populate_project_tagcloud($ctags);
-		print git_show_project_tagcloud($cloud, 64);
-	}
-
-	print "<table class=\"project_list\">\n";
-	unless ($no_header) {
-		print "<tr>\n";
-		if ($check_forks) {
-			print "<th></th>\n";
-		}
-		print_sort_th('project', $order, 'Project');
-		print_sort_th('descr', $order, 'Description');
-		print_sort_th('owner', $order, 'Owner') unless $omit_owner;
-		print_sort_th('age', $order, 'Last Change') unless $omit_age_column;
-		print "<th></th>\n" . # for links
-		      "</tr>\n";
-	}
-
-	if ($projects_list_group_categories) {
-		# only display categories with projects in the $from-$to window
-		@projects = sort {$a->{'category'} cmp $b->{'category'}} @projects[$from..$to];
-		my %categories = build_projlist_by_category(\@projects, $from, $to);
-		foreach my $cat (sort keys %categories) {
-			unless ($cat eq "") {
-				print "<tr>\n";
-				if ($check_forks) {
-					print "<td></td>\n";
-				}
-				print "<td class=\"category\" colspan=\"5\">".esc_html($cat)."</td>\n";
-				print "</tr>\n";
-			}
-
-			git_project_list_rows($categories{$cat}, undef, undef, $check_forks);
-		}
-	} else {
-		git_project_list_rows(\@projects, $from, $to, $check_forks);
-	}
-
-	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_log_body {
-	# uses global variable $project
-	my ($commitlist, $from, $to, $refs, $extra) = @_;
-
-	$from = 0 unless defined $from;
-	$to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
-
-	for (my $i = 0; $i <= $to; $i++) {
-		my %co = %{$commitlist->[$i]};
-		next if !%co;
-		my $commit = $co{'id'};
-		my $ref = format_ref_marker($refs, $commit);
-		git_print_header_div('commit',
-		               "<span class=\"age\">$co{'age_string'}</span>" .
-		               esc_html($co{'title'}) . $ref,
-		               $commit);
-		print "<div class=\"title_text\">\n" .
-		      "<div class=\"log_link\">\n" .
-		      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
-		      " | " .
-		      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
-		      " | " .
-		      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
-		      "<br/>\n" .
-		      "</div>\n";
-		      git_print_authorship(\%co, -tag => 'span');
-		      print "<br/>\n</div>\n";
-
-		print "<div class=\"log_body\">\n";
-		git_print_log($co{'comment'}, -final_empty_line=> 1);
-		print "</div>\n";
-	}
-	if ($extra) {
-		print "<div class=\"page_nav\">\n";
-		print "$extra\n";
-		print "</div>\n";
-	}
-}
-
-sub git_shortlog_body {
-	# uses global variable $project
-	my ($commitlist, $from, $to, $refs, $extra) = @_;
-
-	$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";
-		}
-		$alternate ^= 1;
-		# git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
-		print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
-		      format_author_html('td', \%co, 10) . "<td>";
-		print format_subject_html($co{'title'}, $co{'title_short'},
-		                          href(action=>"commit", hash=>$commit), $ref);
-		print "</td>\n" .
-		      "<td class=\"link\">" .
-		      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
-		      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
-		      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
-		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, $extra,
-	    $file_name, $file_hash, $ftype) = @_;
-
-	$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";
-		}
-		$alternate ^= 1;
-		print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
-	# shortlog:   format_author_html('td', \%co, 10)
-		      format_author_html('td', \%co, 15, 3) . "<td>";
-		# originally git_history used chop_str($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') {
-			print " | " .
-			      $cgi->a({-href => href(action=>"blob_plain", hash_base=>$commit, file_name=>$file_name)}, "raw");
-
-			my $blob_current = $file_hash;
-			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 $tag{'age'}) {
-			print "<td><i>$tag{'age'}</i></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\">" . " | " .
-		      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
-		if ($tag{'reftype'} eq "commit") {
-			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");
-		}
-		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_at, $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 = defined $head_at && $ref{'id'} eq $head_at;
-		if ($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{'fullname'})}, "tree") .
-		      "</td>\n" .
-		      "</tr>";
-	}
-	if (defined $extra) {
-		print "<tr>\n" .
-		      "<td colspan=\"3\">$extra</td>\n" .
-		      "</tr>\n";
-	}
-	print "</table>\n";
-}
-
-# Display a single remote block
-sub git_remote_block {
-	my ($remote, $rdata, $limit, $head) = @_;
-
-	my $heads = $rdata->{'heads'};
-	my $fetch = $rdata->{'fetch'};
-	my $push = $rdata->{'push'};
-
-	my $urls_table = "<table class=\"projects_list\">\n" ;
-
-	if (defined $fetch) {
-		if ($fetch eq $push) {
-			$urls_table .= format_repo_url("URL", $fetch);
-		} else {
-			$urls_table .= format_repo_url("Fetch URL", $fetch);
-			$urls_table .= format_repo_url("Push URL", $push) if defined $push;
-		}
-	} elsif (defined $push) {
-		$urls_table .= format_repo_url("Push URL", $push);
-	} else {
-		$urls_table .= format_repo_url("", "No remote URL");
-	}
-
-	$urls_table .= "</table>\n";
-
-	my $dots;
-	if (defined $limit && $limit < @$heads) {
-		$dots = $cgi->a({-href => href(action=>"remotes", hash=>$remote)}, "...");
-	}
-
-	print $urls_table;
-	git_heads_body($heads, $head, 0, $limit, $dots);
-}
-
-# Display a list of remote names with the respective fetch and push URLs
-sub git_remotes_list {
-	my ($remotedata, $limit) = @_;
-	print "<table class=\"heads\">\n";
-	my $alternate = 1;
-	my @remotes = sort keys %$remotedata;
-
-	my $limited = $limit && $limit < @remotes;
-
-	$#remotes = $limit - 1 if $limited;
-
-	while (my $remote = shift @remotes) {
-		my $rdata = $remotedata->{$remote};
-		my $fetch = $rdata->{'fetch'};
-		my $push = $rdata->{'push'};
-		if ($alternate) {
-			print "<tr class=\"dark\">\n";
-		} else {
-			print "<tr class=\"light\">\n";
-		}
-		$alternate ^= 1;
-		print "<td>" .
-		      $cgi->a({-href=> href(action=>'remotes', hash=>$remote),
-			       -class=> "list name"},esc_html($remote)) .
-		      "</td>";
-		print "<td class=\"link\">" .
-		      (defined $fetch ? $cgi->a({-href=> $fetch}, "fetch") : "fetch") .
-		      " | " .
-		      (defined $push ? $cgi->a({-href=> $push}, "push") : "push") .
-		      "</td>";
-
-		print "</tr>\n";
-	}
-
-	if ($limited) {
-		print "<tr>\n" .
-		      "<td colspan=\"3\">" .
-		      $cgi->a({-href => href(action=>"remotes")}, "...") .
-		      "</td>\n" . "</tr>\n";
-	}
-
-	print "</table>";
-}
-
-# Display remote heads grouped by remote, unless there are too many
-# remotes, in which case we only display the remote names
-sub git_remotes_body {
-	my ($remotedata, $limit, $head) = @_;
-	if ($limit and $limit < keys %$remotedata) {
-		git_remotes_list($remotedata, $limit);
-	} else {
-		fill_remote_heads($remotedata);
-		while (my ($remote, $rdata) = each %$remotedata) {
-			git_print_section({-class=>"remote", -id=>$remote},
-				["remotes", $remote, $remote], sub {
-					git_remote_block($remote, $rdata, $limit, $head);
-				});
-		}
-	}
-}
-
-sub git_search_message {
-	my %co = @_;
-
-	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(-replay=>1, page=>undef)},
-			        "first") .
-			" &sdot; " .
-			$cgi->a({-href => href(-replay=>1, page=>$page-1),
-			         -accesskey => "p", -title => "Alt-p"}, "prev");
-	} else {
-		$paging_nav .= "first &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('','', $hash,$co{'tree'},$hash, $paging_nav);
-	git_print_header_div('commit', esc_html($co{'title'}), $hash);
-	if ($page == 0 && !@commitlist) {
-		print "<p>No match.</p>\n";
-	} else {
-		git_search_grep_body(\@commitlist, 0, 99, $next_link);
-	}
-
-	git_footer_html();
-}
-
-sub git_search_changes {
-	my %co = @_;
-
-	local $/ = "\n";
-	open my $fd, '-|', git_cmd(), '--no-pager', 'log', @diff_opts,
-		'--pretty=format:%H', '--no-abbrev', '--raw', "-S$searchtext",
-		($search_use_regexp ? '--pickaxe-regex' : ())
-			or die_error(500, "Open git-log failed");
-
-	git_header_html();
-
-	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;
-	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=>$co{'id'})},
-				              "tree") .
-				      "</td>\n" .
-				      "</tr>\n";
-			}
-
-			if ($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 is_deleted(\%set);
-
-			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") .
-		      "</td>\n" .
-		      "</tr>\n";
-	}
-
-	print "</table>\n";
-
-	git_footer_html();
-}
-
-sub git_search_files {
-	my %co = @_;
-
-	local $/ = "\n";
-	open my $fd, "-|", git_cmd(), 'grep', '-n', '-z',
-		$search_use_regexp ? ('-E', '-i') : '-F',
-		$searchtext, $co{'tree'}
-			or die_error(500, "Open git-grep failed");
-
-	git_header_html();
-
-	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;
-	my $lastfile = '';
-	my $file_href;
-	while (my $line = <$fd>) {
-		chomp $line;
-		my ($file, $lno, $ltext, $binary);
-		last if ($matches++ > 1000);
-		if ($line =~ /^Binary file (.+) matches$/) {
-			$file = $1;
-			$binary = 1;
-		} else {
-			($file, $lno, $ltext) = split(/\0/, $line, 3);
-			$file =~ s/^$co{'tree'}://;
-		}
-		if ($file ne $lastfile) {
-			$lastfile and print "</td></tr>\n";
-			if ($alternate++) {
-				print "<tr class=\"dark\">\n";
-			} else {
-				print "<tr class=\"light\">\n";
-			}
-			$file_href = href(action=>"blob", hash_base=>$co{'id'},
-			                  file_name=>$file);
-			print "<td class=\"list\">".
-				$cgi->a({-href => $file_href, -class => "list"}, esc_path($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 => $file_href.'#l'.$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 $fd;
-
-	print "</table>\n";
-
-	git_footer_html();
-}
-
-sub git_search_grep_body {
-	my ($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";
-		}
-		$alternate ^= 1;
-		print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
-		      format_author_html('td', \%co, 15, 5) .
-		      "<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 = $input_params{'order'};
-	if (defined $order && $order !~ m/none|project|descr|owner|age/) {
-		die_error(400, "Unknown order parameter");
-	}
-
-	my @list = git_get_projects_list($project_filter, $strict_export);
-	if (!@list) {
-		die_error(404, "No projects found");
-	}
-
-	git_header_html();
-	if (defined $home_text && -f $home_text) {
-		print "<div class=\"index_include\">\n";
-		insert_file($home_text);
-		print "</div>\n";
-	}
-
-	git_project_search_form($searchtext, $search_use_regexp);
-	git_project_list_body(\@list, $order);
-	git_footer_html();
-}
-
-sub git_forks {
-	my $order = $input_params{'order'};
-	if (defined $order && $order !~ m/none|project|descr|owner|age/) {
-		die_error(400, "Unknown order parameter");
-	}
-
-	my $filter = $project;
-	$filter =~ s/\.git$//;
-	my @list = git_get_projects_list($filter);
-	if (!@list) {
-		die_error(404, "No forks found");
-	}
-
-	git_header_html();
-	git_print_page_nav('','');
-	git_print_header_div('summary', "$project forks");
-	git_project_list_body(\@list, $order);
-	git_footer_html();
-}
-
-sub git_project_index {
-	my @projects = git_get_projects_list($project_filter, $strict_export);
-	if (!@projects) {
-		die_error(404, "No projects found");
-	}
-
-	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 $remote_heads = gitweb_check_feature('remote_heads');
-
-	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 %remotedata = $remote_heads ? git_get_remotes_list() : ();
-	my @forklist;
-	my $check_forks = gitweb_check_feature('forks');
-
-	if ($check_forks) {
-		# find forks of a project
-		my $filter = $project;
-		$filter =~ s/\.git$//;
-		@forklist = git_get_projects_list($filter);
-		# filter out forks of forks
-		@forklist = filter_forks_from_projects_list(\@forklist)
-			if (@forklist);
-	}
-
-	git_header_html();
-	git_print_page_nav('summary','', $head);
-
-	print "<div class=\"title\">&nbsp;</div>\n";
-	print "<table class=\"projects_list\">\n" .
-	      "<tr id=\"metadata_desc\"><td>description</td><td>" . esc_html($descr) . "</td></tr>\n";
-        if ($owner and not $omit_owner) {
-	        print  "<tr id=\"metadata_owner\"><td>owner</td><td>" . esc_html($owner) . "</td></tr>\n";
-        }
-	if (defined $cd{'rfc2822'}) {
-		print "<tr id=\"metadata_lchange\"><td>last change</td>" .
-		      "<td>".format_timestamp_html(\%cd)."</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 $git_url;
-		print format_repo_url($url_tag, $git_url);
-		$url_tag = "";
-	}
-
-	# Tag cloud
-	my $show_ctags = gitweb_check_feature('ctags');
-	if ($show_ctags) {
-		my $ctags = git_get_project_ctags($project);
-		if (%$ctags) {
-			# without ability to add tags, don't show if there are none
-			my $cloud = git_populate_project_tagcloud($ctags);
-			print "<tr id=\"metadata_ctags\">" .
-			      "<td>content tags</td>" .
-			      "<td>".git_show_project_tagcloud($cloud, 48)."</td>" .
-			      "</tr>\n";
-		}
-	}
-
-	print "</table>\n";
-
-	# If XSS prevention is on, we don't include README.html.
-	# TODO: Allow a readme in some safe format.
-	if (!$prevent_xss && -s "$projectroot/$project/README.html") {
-		print "<div class=\"title\">readme</div>\n" .
-		      "<div class=\"readme\">\n";
-		insert_file("$projectroot/$project/README.html");
-		print "\n</div>\n"; # class="readme"
-	}
-
-	# 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 (%remotedata) {
-		git_print_header_div('remotes');
-		git_remotes_body(\%remotedata, 15, $head);
-	}
-
-	if (@forklist) {
-		git_print_header_div('forks');
-		git_project_list_body(\@forklist, 'age', 0, 15,
-		                      $#forklist <= 15 ? undef :
-		                      $cgi->a({-href => href(action=>"forks")}, "..."),
-		                      'no_header');
-	}
-
-	git_footer_html();
-}
-
-sub git_tag {
-	my %tag = parse_tag($hash);
-
-	if (! %tag) {
-		die_error(404, "Unknown tag object");
-	}
-
-	my $head = git_get_head_hash($project);
-	git_header_html();
-	git_print_page_nav('','', $head,undef,$head);
-	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'})) {
-		git_print_authorship_rows(\%tag, 'author');
-	}
-	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_blame_common {
-	my $format = shift || 'porcelain';
-	if ($format eq 'porcelain' && $input_params{'javascript'}) {
-		$format = 'incremental';
-		$action = 'blame_incremental'; # for page title etc
-	}
-
-	# permissions
-	gitweb_check_feature('blame')
-		or die_error(403, "Blame view not allowed");
-
-	# error checking
-	die_error(400, "No file name given") unless $file_name;
-	$hash_base ||= git_get_head_hash($project);
-	die_error(404, "Couldn't find base commit") unless $hash_base;
-	my %co = parse_commit($hash_base)
-		or die_error(404, "Commit not found");
-	my $ftype = "blob";
-	if (!defined $hash) {
-		$hash = git_get_hash_by_path($hash_base, $file_name, "blob")
-			or die_error(404, "Error looking up file");
-	} else {
-		$ftype = git_get_type($hash);
-		if ($ftype !~ "blob") {
-			die_error(400, "Object is not a blob");
-		}
-	}
-
-	my $fd;
-	if ($format eq 'incremental') {
-		# get file contents (as base)
-		open $fd, "-|", git_cmd(), 'cat-file', 'blob', $hash
-			or die_error(500, "Open git-cat-file failed");
-	} elsif ($format eq 'data') {
-		# run git-blame --incremental
-		open $fd, "-|", git_cmd(), "blame", "--incremental",
-			$hash_base, "--", $file_name
-			or die_error(500, "Open git-blame --incremental failed");
-	} else {
-		# run git-blame --porcelain
-		open $fd, "-|", git_cmd(), "blame", '-p',
-			$hash_base, '--', $file_name
-			or die_error(500, "Open git-blame --porcelain failed");
-	}
-	binmode $fd, ':utf8';
-
-	# incremental blame data returns early
-	if ($format eq 'data') {
-		print $cgi->header(
-			-type=>"text/plain", -charset => "utf-8",
-			-status=> "200 OK");
-		local $| = 1; # output autoflush
-		while (my $line = <$fd>) {
-			print to_utf8($line);
-		}
-		close $fd
-			or print "ERROR $!\n";
-
-		print 'END';
-		if (defined $t0 && gitweb_check_feature('timed')) {
-			print ' '.
-			      tv_interval($t0, [ gettimeofday() ]).
-			      ' '.$number_of_git_cmds;
-		}
-		print "\n";
-
-		return;
-	}
-
-	# page header
-	git_header_html();
-	my $formats_nav =
-		$cgi->a({-href => href(action=>"blob", -replay=>1)},
-		        "blob") .
-		" | ";
-	if ($format eq 'incremental') {
-		$formats_nav .=
-			$cgi->a({-href => href(action=>"blame", javascript=>0, -replay=>1)},
-			        "blame") . " (non-incremental)";
-	} else {
-		$formats_nav .=
-			$cgi->a({-href => href(action=>"blame_incremental", -replay=>1)},
-			        "blame") . " (incremental)";
-	}
-	$formats_nav .=
-		" | " .
-		$cgi->a({-href => href(action=>"history", -replay=>1)},
-		        "history") .
-		" | " .
-		$cgi->a({-href => href(action=>$action, 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, $hash_base);
-
-	# page body
-	if ($format eq 'incremental') {
-		print "<noscript>\n<div class=\"error\"><center><b>\n".
-		      "This page requires JavaScript to run.\n Use ".
-		      $cgi->a({-href => href(action=>'blame',javascript=>0,-replay=>1)},
-		              'this page').
-		      " instead.\n".
-		      "</b></center></div>\n</noscript>\n";
-
-		print qq!<div id="progress_bar" style="width: 100%; background-color: yellow"></div>\n!;
-	}
-
-	print qq!<div class="page_body">\n!;
-	print qq!<div id="progress_info">... / ...</div>\n!
-		if ($format eq 'incremental');
-	print qq!<table id="blame_table" class="blame" width="100%">\n!.
-	      #qq!<col width="5.5em" /><col width="2.5em" /><col width="*" />\n!.
-	      qq!<thead>\n!.
-	      qq!<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n!.
-	      qq!</thead>\n!.
-	      qq!<tbody>\n!;
-
-	my @rev_color = qw(light dark);
-	my $num_colors = scalar(@rev_color);
-	my $current_color = 0;
-
-	if ($format eq 'incremental') {
-		my $color_class = $rev_color[$current_color];
-
-		#contents of a file
-		my $linenr = 0;
-	LINE:
-		while (my $line = <$fd>) {
-			chomp $line;
-			$linenr++;
-
-			print qq!<tr id="l$linenr" class="$color_class">!.
-			      qq!<td class="sha1"><a href=""> </a></td>!.
-			      qq!<td class="linenr">!.
-			      qq!<a class="linenr" href="">$linenr</a></td>!;
-			print qq!<td class="pre">! . esc_html($line) . "</td>\n";
-			print qq!</tr>\n!;
-		}
-
-	} else { # porcelain, i.e. ordinary blame
-		my %metainfo = (); # saves information about commits
-
-		# blame data
-	LINE:
-		while (my $line = <$fd>) {
-			chomp $line;
-			# the header: <SHA-1> <src lineno> <dst lineno> [<lines in group>]
-			# no <lines in group> for subsequent lines in group of lines
-			my ($full_rev, $orig_lineno, $lineno, $group_size) =
-			   ($line =~ /^($oid_regex) (\d+) (\d+)(?: (\d+))?$/);
-			if (!exists $metainfo{$full_rev}) {
-				$metainfo{$full_rev} = { 'nprevious' => 0 };
-			}
-			my $meta = $metainfo{$full_rev};
-			my $data;
-			while ($data = <$fd>) {
-				chomp $data;
-				last if ($data =~ s/^\t//); # contents of line
-				if ($data =~ /^(\S+)(?: (.*))?$/) {
-					$meta->{$1} = $2 unless exists $meta->{$1};
-				}
-				if ($data =~ /^previous /) {
-					$meta->{'nprevious'}++;
-				}
-			}
-			my $short_rev = substr($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 + 1) % $num_colors;
-			}
-			my $tr_class = $rev_color[$current_color];
-			$tr_class .= ' boundary' if (exists $meta->{'boundary'});
-			$tr_class .= ' no-previous' if ($meta->{'nprevious'} == 0);
-			$tr_class .= ' multiple-previous' if ($meta->{'nprevious'} > 1);
-			print "<tr id=\"l$lineno\" class=\"$tr_class\">\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=>$file_name)},
-				              esc_html($short_rev));
-				if ($group_size >= 2) {
-					my @author_initials = ($author =~ /\b([[:upper:]])\B/g);
-					if (@author_initials) {
-						print "<br />" .
-						      esc_html(join('', @author_initials));
-						#           or join('.', ...)
-					}
-				}
-				print "</td>\n";
-			}
-			# 'previous' <sha1 of parent commit> <filename at commit>
-			if (exists $meta->{'previous'} &&
-			    $meta->{'previous'} =~ /^($oid_regex) (.*)$/) {
-				$meta->{'parent'} = $1;
-				$meta->{'file_parent'} = unquote($2);
-			}
-			my $linenr_commit =
-				exists($meta->{'parent'}) ?
-				$meta->{'parent'} : $full_rev;
-			my $linenr_filename =
-				exists($meta->{'file_parent'}) ?
-				$meta->{'file_parent'} : unquote($meta->{'filename'});
-			my $blamed = href(action => 'blame',
-			                  file_name => $linenr_filename,
-			                  hash_base => $linenr_commit);
-			print "<td class=\"linenr\">";
-			print $cgi->a({ -href => "$blamed#l$orig_lineno",
-			                -class => "linenr" },
-			              esc_html($lineno));
-			print "</td>";
-			print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
-			print "</tr>\n";
-		} # end while
-
-	}
-
-	# footer
-	print "</tbody>\n".
-	      "</table>\n"; # class="blame"
-	print "</div>\n";   # class="blame_body"
-	close $fd
-		or print "Reading blob failed\n";
-
-	git_footer_html();
-}
-
-sub git_blame {
-	git_blame_common();
-}
-
-sub git_blame_incremental {
-	git_blame_common('incremental');
-}
-
-sub git_blame_data {
-	git_blame_common('data');
-}
-
-sub git_tags {
-	my $head = git_get_head_hash($project);
-	git_header_html();
-	git_print_page_nav('','', $head,undef,$head,format_ref_views('tags'));
-	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,format_ref_views('heads'));
-	git_print_header_div('summary', $project);
-
-	my @headslist = git_get_heads_list();
-	if (@headslist) {
-		git_heads_body(\@headslist, $head);
-	}
-	git_footer_html();
-}
-
-# used both for single remote view and for list of all the remotes
-sub git_remotes {
-	gitweb_check_feature('remote_heads')
-		or die_error(403, "Remote heads view is disabled");
-
-	my $head = git_get_head_hash($project);
-	my $remote = $input_params{'hash'};
-
-	my $remotedata = git_get_remotes_list($remote);
-	die_error(500, "Unable to get remote information") unless defined $remotedata;
-
-	unless (%$remotedata) {
-		die_error(404, defined $remote ?
-			"Remote $remote not found" :
-			"No remotes found");
-	}
-
-	git_header_html(undef, undef, -action_extra => $remote);
-	git_print_page_nav('', '',  $head, undef, $head,
-		format_ref_views($remote ? '' : 'remotes'));
-
-	fill_remote_heads($remotedata);
-	if (defined $remote) {
-		git_print_header_div('remotes', "$remote remote for $project");
-		git_remote_block($remote, $remotedata->{$remote}, undef, $head);
-	} else {
-		git_print_header_div('summary', "$project remotes");
-		git_remotes_body($remotedata, undef, $head);
-	}
-
-	git_footer_html();
-}
-
-sub git_blob_plain {
-	my $type = shift;
-	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, $file_name, "blob")
-				or die_error(404, "Cannot find file");
-		} else {
-			die_error(400, "No file name defined");
-		}
-	} elsif ($hash =~ m/^$oid_regex$/) {
-		# blobs defined by non-textual hash id's can be cached
-		$expires = "+1d";
-	}
-
-	open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
-		or die_error(500, "Open git-cat-file blob '$hash' failed");
-
-	# content-type (can include charset)
-	$type = blob_contenttype($fd, $file_name, $type);
-
-	# "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';
-	}
-
-	# With XSS prevention on, blobs of all types except a few known safe
-	# ones are served with "Content-Disposition: attachment" to make sure
-	# they don't run in our security domain.  For certain image types,
-	# blob view writes an <img> tag referring to blob_plain view, and we
-	# want to be sure not to break that by serving the image as an
-	# attachment (though Firefox 3 doesn't seem to care).
-	my $sandbox = $prevent_xss &&
-		$type !~ m!^(?:text/[a-z]+|image/(?:gif|png|jpeg))(?:[ ;]|$)!;
-
-	# serve text/* as text/plain
-	if ($prevent_xss &&
-	    ($type =~ m!^text/[a-z]+\b(.*)$! ||
-	     ($type =~ m!^[a-z]+/[a-z]\+xml\b(.*)$! && -T $fd))) {
-		my $rest = $1;
-		$rest = defined $rest ? $rest : '';
-		$type = "text/plain$rest";
-	}
-
-	print $cgi->header(
-		-type => $type,
-		-expires => $expires,
-		-content_disposition =>
-			($sandbox ? 'attachment' : 'inline')
-			. '; filename="' . $save_as . '"');
-	local $/ = undef;
-	local *FCGI::Stream::PRINT = $FCGI_Stream_PRINT_raw;
-	binmode STDOUT, ':raw';
-	print <$fd>;
-	binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
-	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, $file_name, "blob")
-				or die_error(404, "Cannot find file");
-		} else {
-			die_error(400, "No file name defined");
-		}
-	} elsif ($hash =~ m/^$oid_regex$/) {
-		# 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(500, "Couldn't cat $file_name, $hash");
-	my $mimetype = blob_mimetype($fd, $file_name);
-	# use 'blob_plain' (aka 'raw') view for files that cannot be displayed
-	if ($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/!);
-
-	my $highlight = gitweb_check_feature('highlight');
-	my $syntax = guess_file_syntax($highlight, $file_name);
-	$fd = run_highlighter($fd, $highlight, $syntax);
-
-	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'}), $hash_base);
-	} else {
-		print "<div class=\"page_nav\">\n" .
-		      "<br/><br/></div>\n" .
-		      "<div class=\"title\">".esc_html($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 class="blob" type="!.esc_attr($mimetype).qq!"!;
-		if ($file_name) {
-			print qq! alt="!.esc_attr($file_name).qq!" title="!.esc_attr($file_name).qq!"!;
-		}
-		print qq! src="! .
-		      esc_attr(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 qq!<div class="pre"><a id="l%i" href="%s#l%i" class="linenr">%4i</a> %s</div>\n!,
-			       $nr, esc_attr(href(-replay => 1)), $nr, $nr,
-			       $highlight ? sanitize($line) : 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 = $hash_base;
-		}
-	}
-	die_error(404, "No such tree") unless defined($hash);
-
-	my $show_sizes = gitweb_check_feature('show-sizes');
-	my $have_blame = gitweb_check_feature('blame');
-
-	my @entries = ();
-	{
-		local $/ = "\0";
-		open my $fd, "-|", git_cmd(), "ls-tree", '-z',
-			($show_sizes ? '-l' : ()), @extra_options, $hash
-			or die_error(500, "Open git-ls-tree failed");
-		@entries = map { chomp; $_ } <$fd>;
-		close $fd
-			or die_error(404, "Reading tree failed");
-	}
-
-	my $refs = git_get_references();
-	my $ref = format_ref_marker($refs, $hash_base);
-	git_header_html();
-	my $basedir = '';
-	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 $hash_base;
-		print "<div class=\"page_nav\">\n";
-		print "<br/><br/></div>\n";
-		print "<div class=\"title\">".esc_html($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="size">&nbsp;</td>'."\n" if $show_sizes;
-		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, -l => $show_sizes);
-
-		if ($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 sanitize_for_filename {
-    my $name = shift;
-
-    $name =~ s!/!-!g;
-    $name =~ s/[^[:alnum:]_.-]//g;
-
-    return $name;
-}
-
-sub snapshot_name {
-	my ($project, $hash) = @_;
-
-	# path/to/project.git  -> project
-	# path/to/project/.git -> project
-	my $name = to_utf8($project);
-	$name =~ s,([^/])/*\.git$,$1,;
-	$name = sanitize_for_filename(basename($name));
-
-	my $ver = $hash;
-	if ($hash =~ /^[0-9a-fA-F]+$/) {
-		# shorten SHA-1 hash
-		my $full_hash = git_get_full_hash($project, $hash);
-		if ($full_hash =~ /^$hash/ && length($hash) > 7) {
-			$ver = git_get_short_hash($project, $hash);
-		}
-	} elsif ($hash =~ m!^refs/tags/(.*)$!) {
-		# tags don't need shortened SHA-1 hash
-		$ver = $1;
-	} else {
-		# branches and other need shortened SHA-1 hash
-		my $strip_refs = join '|', map { quotemeta } get_branch_refs();
-		if ($hash =~ m!^refs/($strip_refs|remotes)/(.*)$!) {
-			my $ref_dir = (defined $1) ? $1 : '';
-			$ver = $2;
-
-			$ref_dir = sanitize_for_filename($ref_dir);
-			# for refs neither in heads nor remotes we want to
-			# add a ref dir to archive name
-			if ($ref_dir ne '' and $ref_dir ne 'heads' and $ref_dir ne 'remotes') {
-				$ver = $ref_dir . '-' . $ver;
-			}
-		}
-		$ver .= '-' . git_get_short_hash($project, $hash);
-	}
-	# special case of sanitization for filename - we change
-	# slashes to dots instead of dashes
-	# in case of hierarchical branch names
-	$ver =~ s!/!.!g;
-	$ver =~ s/[^[:alnum:]_.-]//g;
-
-	# name = project-version_string
-	$name = "$name-$ver";
-
-	return wantarray ? ($name, $name) : $name;
-}
-
-sub exit_if_unmodified_since {
-	my ($latest_epoch) = @_;
-	our $cgi;
-
-	my $if_modified = $cgi->http('IF_MODIFIED_SINCE');
-	if (defined $if_modified) {
-		my $since;
-		if (eval { require HTTP::Date; 1; }) {
-			$since = HTTP::Date::str2time($if_modified);
-		} elsif (eval { require Time::ParseDate; 1; }) {
-			$since = Time::ParseDate::parsedate($if_modified, GMT => 1);
-		}
-		if (defined $since && $latest_epoch <= $since) {
-			my %latest_date = parse_date($latest_epoch);
-			print $cgi->header(
-				-last_modified => $latest_date{'rfc2822'},
-				-status => '304 Not Modified');
-			goto DONE_GITWEB;
-		}
-	}
-}
-
-sub git_snapshot {
-	my $format = $input_params{'snapshot_format'};
-	if (!@snapshot_fmts) {
-		die_error(403, "Snapshots not allowed");
-	}
-	# default to first supported snapshot format
-	$format ||= $snapshot_fmts[0];
-	if ($format !~ m/^[a-z0-9]+$/) {
-		die_error(400, "Invalid snapshot format parameter");
-	} elsif (!exists($known_snapshot_formats{$format})) {
-		die_error(400, "Unknown snapshot format");
-	} elsif ($known_snapshot_formats{$format}{'disabled'}) {
-		die_error(403, "Snapshot format not allowed");
-	} elsif (!grep($_ eq $format, @snapshot_fmts)) {
-		die_error(403, "Unsupported snapshot format");
-	}
-
-	my $type = git_get_type("$hash^{}");
-	if (!$type) {
-		die_error(404, 'Object does not exist');
-	}  elsif ($type eq 'blob') {
-		die_error(400, 'Object is not a tree-ish');
-	}
-
-	my ($name, $prefix) = snapshot_name($project, $hash);
-	my $filename = "$name$known_snapshot_formats{$format}{'suffix'}";
-
-	my %co = parse_commit($hash);
-	exit_if_unmodified_since($co{'committer_epoch'}) if %co;
-
-	my $cmd = quote_command(
-		git_cmd(), 'archive',
-		"--format=$known_snapshot_formats{$format}{'format'}",
-		"--prefix=$prefix/", $hash);
-	if (exists $known_snapshot_formats{$format}{'compressor'}) {
-		$cmd .= ' | ' . quote_command(@{$known_snapshot_formats{$format}{'compressor'}});
-	}
-
-	$filename =~ s/(["\\])/\\$1/g;
-	my %latest_date;
-	if (%co) {
-		%latest_date = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
-	}
-
-	print $cgi->header(
-		-type => $known_snapshot_formats{$format}{'type'},
-		-content_disposition => 'inline; filename="' . $filename . '"',
-		%co ? (-last_modified => $latest_date{'rfc2822'}) : (),
-		-status => '200 OK');
-
-	open my $fd, "-|", $cmd
-		or die_error(500, "Execute git-archive failed");
-	local *FCGI::Stream::PRINT = $FCGI_Stream_PRINT_raw;
-	binmode STDOUT, ':raw';
-	print <$fd>;
-	binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
-	close $fd;
-}
-
-sub git_log_generic {
-	my ($fmt_name, $body_subr, $base, $parent, $file_name, $file_hash) = @_;
-
-	my $head = git_get_head_hash($project);
-	if (!defined $base) {
-		$base = $head;
-	}
-	if (!defined $page) {
-		$page = 0;
-	}
-	my $refs = git_get_references();
-
-	my $commit_hash = $base;
-	if (defined $parent) {
-		$commit_hash = "$parent..$base";
-	}
-	my @commitlist =
-		parse_commits($commit_hash, 101, (100 * $page),
-		              defined $file_name ? ($file_name, "--full-history") : ());
-
-	my $ftype;
-	if (!defined $file_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++) {
-			$file_hash = git_get_hash_by_path($commitlist[$i]{'id'}, $file_name);
-			last if defined $file_hash;
-		}
-	}
-	if (defined $file_hash) {
-		$ftype = git_get_type($file_hash);
-	}
-	if (defined $file_name && !defined $ftype) {
-		die_error(500, "Unknown type of object");
-	}
-	my %co;
-	if (defined $file_name) {
-		%co = parse_commit($base)
-			or die_error(404, "Unknown commit object");
-	}
-
-
-	my $paging_nav = format_paging_nav($fmt_name, $page, $#commitlist >= 100);
-	my $next_link = '';
-	if ($#commitlist >= 100) {
-		$next_link =
-			$cgi->a({-href => href(-replay=>1, page=>$page+1),
-			         -accesskey => "n", -title => "Alt-n"}, "next");
-	}
-	my $patch_max = gitweb_get_feature('patches');
-	if ($patch_max && !defined $file_name) {
-		if ($patch_max < 0 || @commitlist <= $patch_max) {
-			$paging_nav .= " &sdot; " .
-				$cgi->a({-href => href(action=>"patches", -replay=>1)},
-					"patches");
-		}
-	}
-
-	git_header_html();
-	git_print_page_nav($fmt_name,'', $hash,$hash,$hash, $paging_nav);
-	if (defined $file_name) {
-		git_print_header_div('commit', esc_html($co{'title'}), $base);
-	} else {
-		git_print_header_div('summary', $project)
-	}
-	git_print_page_path($file_name, $ftype, $hash_base)
-		if (defined $file_name);
-
-	$body_subr->(\@commitlist, 0, 99, $refs, $next_link,
-	             $file_name, $file_hash, $ftype);
-
-	git_footer_html();
-}
-
-sub git_log {
-	git_log_generic('log', \&git_log_body,
-	                $hash, $hash_parent);
-}
-
-sub git_commit {
-	$hash ||= $hash_base || "HEAD";
-	my %co = parse_commit($hash)
-	    or die_error(404, "Unknown commit object");
-
-	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 (gitweb_check_feature('patches') && @$parents <= 1) {
-		$formats_nav .= " | " .
-			$cgi->a({-href => href(action=>"patch", -replay=>1)},
-				"patch");
-	}
-
-	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(500, "Open git-diff-tree failed");
-	@difftree = map { chomp; $_ } <$fd>;
-	close $fd or die_error(404, "Reading git-diff-tree failed");
-
-	# non-textual hash id's can be cached
-	my $expires;
-	if ($hash =~ m/^$oid_regex$/) {
-		$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'}, $hash);
-	}
-	print "<div class=\"title_text\">\n" .
-	      "<table class=\"object_header\">\n";
-	git_print_authorship_rows(\%co);
-	print "<tr><td>commit</td><td class=\"sha1\">$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, "Object does not exist");
-		$type = <$fd>;
-		defined $type && chomp $type;
-		close $fd
-			or die_error(404, "Object does not exist");
-
-	# - hash_base and file_name
-	} elsif ($hash_base && defined $file_name) {
-		$file_name =~ s,/+$,,;
-
-		system(git_cmd(), "cat-file", '-e', $hash_base) == 0
-			or die_error(404, "Base object does not exist");
-
-		# here errors should not happen
-		open my $fd, "-|", git_cmd(), "ls-tree", $hash_base, "--", $file_name
-			or die_error(500, "Open git-ls-tree failed");
-		my $line = <$fd>;
-		close $fd;
-
-		#'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa	panic.c'
-		unless ($line && $line =~ m/^([0-9]+) (.+) ($oid_regex)\t/) {
-			die_error(404, "File or directory for given base does not exist");
-		}
-		$type = $2;
-		$hash = $3;
-	} else {
-		die_error(400, "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 $diff_style = $input_params{'diff_style'} || 'inline';
-
-	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(500, "Open git-diff-tree failed");
-			@difftree = map { chomp; $_ } <$fd>;
-			close $fd
-				or die_error(404, "Reading git-diff-tree failed");
-			@difftree
-				or die_error(404, "Blob diff not found");
-
-		} elsif (defined $hash &&
-		         $hash =~ $oid_regex) {
-			# 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(500, "Open git-diff-tree failed");
-			@difftree =
-				# ':100644 100644 03b21826... 3b93d5e7... M	ls-files.c'
-				# $hash == to_id
-				grep { /^:[0-7]{6} [0-7]{6} $oid_regex $hash/ }
-				map { chomp; $_ } <$fd>;
-			close $fd
-				or die_error(404, "Reading git-diff-tree failed");
-			@difftree
-				or die_error(404, "Blob diff not found");
-
-		} else {
-			die_error(400, "Missing one of the blob diff parameters");
-		}
-
-		if (@difftree > 1) {
-			die_error(400, "Ambiguous blob diff specification");
-		}
-
-		%diffinfo = parse_difftree_raw_line($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/^$oid_regex$/ &&
-		    $hash_parent_base =~ m/^$oid_regex$/) {
-			$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 : ()), $file_name
-			or die_error(500, "Open git-diff-tree failed");
-	}
-
-	# old/legacy style URI -- not generated anymore since 1.4.3.
-	if (!%diffinfo) {
-		die_error('404 Not Found', "Missing one of the blob diff parameters")
-	}
-
-	# header
-	if ($format eq 'html') {
-		my $formats_nav =
-			$cgi->a({-href => href(action=>"blobdiff_plain", -replay=>1)},
-			        "raw");
-		$formats_nav .= diff_style_nav($diff_style);
-		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\">".esc_html("$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: " . $cgi->self_url() . "\n\n";
-
-	} else {
-		die_error(400, "Unknown blobdiff format");
-	}
-
-	# patch
-	if ($format eq 'html') {
-		print "<div class=\"page_body\">\n";
-
-		git_patchset_body($fd, $diff_style,
-		                  [ \%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 $fd;
-	}
-}
-
-sub git_blobdiff_plain {
-	git_blobdiff('plain');
-}
-
-# assumes that it is added as later part of already existing navigation,
-# so it returns "| foo | bar" rather than just "foo | bar"
-sub diff_style_nav {
-	my ($diff_style, $is_combined) = @_;
-	$diff_style ||= 'inline';
-
-	return "" if ($is_combined);
-
-	my @styles = (inline => 'inline', 'sidebyside' => 'side by side');
-	my %styles = @styles;
-	@styles =
-		@styles[ map { $_ * 2 } 0..$#styles/2 ];
-
-	return join '',
-		map { " | ".$_ }
-		map {
-			$_ eq $diff_style ? $styles{$_} :
-			$cgi->a({-href => href(-replay=>1, diff_style => $_)}, $styles{$_})
-		} @styles;
-}
-
-sub git_commitdiff {
-	my %params = @_;
-	my $format = $params{-format} || 'html';
-	my $diff_style = $input_params{'diff_style'} || 'inline';
-
-	my ($patch_max) = gitweb_get_feature('patches');
-	if ($format eq 'patch') {
-		die_error(403, "Patch view not allowed") unless $patch_max;
-	}
-
-	$hash ||= $hash_base || "HEAD";
-	my %co = parse_commit($hash)
-	    or die_error(404, "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 =
-			$cgi->a({-href => href(action=>"commitdiff_plain", -replay=>1)},
-			        "raw");
-		if ($patch_max && @{$co{'parents'}} <= 1) {
-			$formats_nav .= " | " .
-				$cgi->a({-href => href(action=>"patch", -replay=>1)},
-					"patch");
-		}
-		$formats_nav .= diff_style_nav($diff_style, @{$co{'parents'}} > 1);
-
-		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/^$oid_regex$/) {
-				$hash_parent_short = substr($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 .= ': ' .
-				$cgi->a({-href => href(-replay=>1,
-				                       hash=>$hash_parent, hash_base=>undef)},
-				        esc_html($hash_parent_short)) .
-				')';
-		} elsif (!$co{'parent'}) {
-			# --root commitdiff
-			$formats_nav .= ' (initial)';
-		} elsif (scalar @{$co{'parents'}} == 1) {
-			# single parent commit
-			$formats_nav .=
-				' (parent: ' .
-				$cgi->a({-href => href(-replay=>1,
-				                       hash=>$co{'parent'}, hash_base=>undef)},
-				        esc_html(substr($co{'parent'}, 0, 7))) .
-				')';
-		} else {
-			# merge commit
-			if ($hash_parent eq '--cc') {
-				$formats_nav .= ' | ' .
-					$cgi->a({-href => href(-replay=>1,
-					                       hash=>$hash, hash_parent=>'-c')},
-					        'combined');
-			} else { # $hash_parent eq '-c'
-				$formats_nav .= ' | ' .
-					$cgi->a({-href => href(-replay=>1,
-					                       hash=>$hash, hash_parent=>'--cc')},
-					        'compact');
-			}
-			$formats_nav .=
-				' (merge: ' .
-				join(' ', map {
-					$cgi->a({-href => href(-replay=>1,
-					                       hash=>$_, hash_base=>undef)},
-					        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(500, "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, $hash, "--"
-			or die_error(500, "Open git-diff-tree failed");
-	} elsif ($format eq 'patch') {
-		# For commit ranges, we limit the output to the number of
-		# patches specified in the 'patches' feature.
-		# For single commits, we limit the output to a single patch,
-		# diverging from the git-format-patch default.
-		my @commit_spec = ();
-		if ($hash_parent) {
-			if ($patch_max > 0) {
-				push @commit_spec, "-$patch_max";
-			}
-			push @commit_spec, '-n', "$hash_parent..$hash";
-		} else {
-			if ($params{-single}) {
-				push @commit_spec, '-1';
-			} else {
-				if ($patch_max > 0) {
-					push @commit_spec, "-$patch_max";
-				}
-				push @commit_spec, "-n";
-			}
-			push @commit_spec, '--root', $hash;
-		}
-		open $fd, "-|", git_cmd(), "format-patch", @diff_opts,
-			'--encoding=utf8', '--stdout', @commit_spec
-			or die_error(500, "Open git-format-patch failed");
-	} else {
-		die_error(400, "Unknown commitdiff format");
-	}
-
-	# non-textual hash id's can be cached
-	my $expires;
-	if ($hash =~ m/^$oid_regex$/) {
-		$expires = "+1d";
-	}
-
-	# write commit message
-	if ($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, $hash);
-		print "<div class=\"title_text\">\n" .
-		      "<table class=\"object_header\">\n";
-		git_print_authorship_rows(\%co);
-		print "</table>".
-		      "</div>\n";
-		print "<div class=\"page_body\">\n";
-		if (@{$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($line) . "\n";
-		}
-		print "---\n\n";
-	} elsif ($format eq 'patch') {
-		my $filename = basename($project) . "-$hash.patch";
-
-		print $cgi->header(
-			-type => 'text/plain',
-			-charset => 'utf-8',
-			-expires => $expires,
-			-content_disposition => 'inline; filename="' . "$filename" . '"');
-	}
-
-	# 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, $diff_style,
-		                  \@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 $fd
-			or print "Reading git-diff-tree failed\n";
-	} elsif ($format eq 'patch') {
-		local $/ = undef;
-		print <$fd>;
-		close $fd
-			or print "Reading git-format-patch failed\n";
-	}
-}
-
-sub git_commitdiff_plain {
-	git_commitdiff(-format => 'plain');
-}
-
-# format-patch-style patches
-sub git_patch {
-	git_commitdiff(-format => 'patch', -single => 1);
-}
-
-sub git_patches {
-	git_commitdiff(-format => 'patch');
-}
-
-sub git_history {
-	git_log_generic('history', \&git_history_body,
-	                $hash_base, $hash_parent_base,
-	                $file_name, $hash);
-}
-
-sub git_search {
-	$searchtype ||= 'commit';
-
-	# check if appropriate features are enabled
-	gitweb_check_feature('search')
-		or die_error(403, "Search is disabled");
-	if ($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
-		gitweb_check_feature('pickaxe')
-			or die_error(403, "Pickaxe search is disabled");
-	}
-	if ($searchtype eq 'grep') {
-		# grep search might be potentially CPU-intensive, too
-		gitweb_check_feature('grep')
-			or die_error(403, "Grep search is disabled");
-	}
-
-	if (!defined $searchtext) {
-		die_error(400, "Text field is empty");
-	}
-	if (!defined $hash) {
-		$hash = git_get_head_hash($project);
-	}
-	my %co = parse_commit($hash);
-	if (!%co) {
-		die_error(404, "Unknown commit object");
-	}
-	if (!defined $page) {
-		$page = 0;
-	}
-
-	if ($searchtype eq 'commit' ||
-	    $searchtype eq 'author' ||
-	    $searchtype eq 'committer') {
-		git_search_message(%co);
-	} elsif ($searchtype eq 'pickaxe') {
-		git_search_changes(%co);
-	} elsif ($searchtype eq 'grep') {
-		git_search_files(%co);
-	} else {
-		die_error(400, "Unknown search type");
-	}
-}
-
-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="https://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 {
-	git_log_generic('shortlog', \&git_shortlog_body,
-	                $hash, $hash_parent);
-}
-
-## ......................................................................
-## 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(400, "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]};
-		my $latest_epoch = $latest_commit{'committer_epoch'};
-		exit_if_unmodified_since($latest_epoch);
-		%latest_date = parse_date($latest_epoch, $latest_commit{'committer_tz'});
-	}
-	print $cgi->header(
-		-type => $content_type,
-		-charset => 'utf-8',
-		%latest_date ? (-last_modified => $latest_date{'rfc2822'}) : (),
-		-status => '200 OK');
-
-	# Optimization: skip generating the body if client asks only
-	# for Last-Modified date.
-	return if ($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";
-	$title = esc_html($title);
-	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");
-	}
-	$alt_url = esc_attr($alt_url);
-	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" .
-		      # project owner is responsible for 'editorial' content
-		      "<managingEditor>$owner</managingEditor>\n";
-		if (defined $logo || defined $favicon) {
-			# prefer the logo to the favicon, since RSS
-			# doesn't allow both
-			my $img = esc_url($logo || $favicon);
-			print "<image>\n" .
-			      "<url>$img</url>\n" .
-			      "<title>$title</title>\n" .
-			      "<link>$alt_url</link>\n" .
-			      "</image>\n";
-		}
-		if (%latest_date) {
-			print "<pubDate>$latest_date{'rfc2822'}</pubDate>\n";
-			print "<lastBuildDate>$latest_date{'rfc2822'}</lastBuildDate>\n";
-		}
-		print "<generator>gitweb v.$version/$git_version</generator>\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="' .
-		      $cgi->self_url() . '" />' . "\n" .
-		      "<id>" . esc_url(href(-full=>1)) . "</id>\n" .
-		      # use project owner for feed author
-		      "<author><name>$owner</name></author>\n";
-		if (defined $favicon) {
-			print "<icon>" . esc_url($favicon) . "</icon>\n";
-		}
-		if (defined $logo) {
-			# not twice as wide as tall: 72 x 27 pixels
-			print "<logo>" . esc_url($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>$latest_date{'iso-8601'}</updated>\n";
-		}
-		print "<generator version='$version/$git_version'>gitweb</generator>\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'}, $co{'author_tz'});
-
-		# 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\">$co_url</guid>\n" .
-			      "<link>" . esc_html($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>$cd{'iso-8601'}</published>\n" .
-			      "<link rel=\"alternate\" type=\"text/html\" href=\"" . esc_attr($co_url) . "\" />\n" .
-			      "<id>" . esc_html($co_url) . "</id>\n" .
-			      "<content type=\"xhtml\" xml:base=\"" . esc_url($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 ($format eq 'atom') {
-		print "</feed>\n";
-	}
-}
-
-sub git_rss {
-	git_feed('rss');
-}
-
-sub git_atom {
-	git_feed('atom');
-}
-
-sub git_opml {
-	my @list = git_get_projects_list($project_filter, $strict_export);
-	if (!@list) {
-		die_error(404, "No projects found");
-	}
-
-	print $cgi->header(
-		-type => 'text/xml',
-		-charset => 'utf-8',
-		-content_disposition => 'inline; filename="opml.xml"');
-
-	my $title = esc_html($site_name);
-	my $filter = " within subdirectory ";
-	if (defined $project_filter) {
-		$filter .= esc_html($project_filter);
-	} else {
-		$filter = "";
-	}
-	print <<XML;
-<?xml version="1.0" encoding="utf-8"?>
-<opml version="1.0">
-<head>
-  <title>$title OPML Export$filter</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  = esc_attr(href('project' => $proj{'path'}, 'action' => 'rss', -full => 1));
-		my $html = esc_attr(href('project' => $proj{'path'}, 'action' => 'summary', -full => 1));
-		print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
-	}
-	print <<XML;
-</outline>
-</body>
-</opml>
-XML
-}