gitweb / gitweb.perlon commit Merge branch 'maint' (e75c558)
   1#!/usr/bin/perl
   2
   3# gitweb - simple web interface to track changes in git repositories
   4#
   5# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6# (C) 2005, Christian Gierke
   7#
   8# This program is licensed under the GPLv2
   9
  10use strict;
  11use warnings;
  12use CGI qw(:standard :escapeHTML -nosticky);
  13use CGI::Util qw(unescape);
  14use CGI::Carp qw(fatalsToBrowser);
  15use Encode;
  16use Fcntl ':mode';
  17use File::Find qw();
  18use File::Basename qw(basename);
  19binmode STDOUT, ':utf8';
  20
  21BEGIN {
  22        CGI->compile() if $ENV{'MOD_PERL'};
  23}
  24
  25our $cgi = new CGI;
  26our $version = "++GIT_VERSION++";
  27our $my_url = $cgi->url();
  28our $my_uri = $cgi->url(-absolute => 1);
  29
  30# core git executable to use
  31# this can just be "git" if your webserver has a sensible PATH
  32our $GIT = "++GIT_BINDIR++/git";
  33
  34# absolute fs-path which will be prepended to the project path
  35#our $projectroot = "/pub/scm";
  36our $projectroot = "++GITWEB_PROJECTROOT++";
  37
  38# fs traversing limit for getting project list
  39# the number is relative to the projectroot
  40our $project_maxdepth = "++GITWEB_PROJECT_MAXDEPTH++";
  41
  42# target of the home link on top of all pages
  43our $home_link = $my_uri || "/";
  44
  45# string of the home link on top of all pages
  46our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  47
  48# name of your site or organization to appear in page titles
  49# replace this with something more descriptive for clearer bookmarks
  50our $site_name = "++GITWEB_SITENAME++"
  51                 || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
  52
  53# filename of html text to include at top of each page
  54our $site_header = "++GITWEB_SITE_HEADER++";
  55# html text to include at home page
  56our $home_text = "++GITWEB_HOMETEXT++";
  57# filename of html text to include at bottom of each page
  58our $site_footer = "++GITWEB_SITE_FOOTER++";
  59
  60# URI of stylesheets
  61our @stylesheets = ("++GITWEB_CSS++");
  62# URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
  63our $stylesheet = undef;
  64# URI of GIT logo (72x27 size)
  65our $logo = "++GITWEB_LOGO++";
  66# URI of GIT favicon, assumed to be image/png type
  67our $favicon = "++GITWEB_FAVICON++";
  68
  69# URI and label (title) of GIT logo link
  70#our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  71#our $logo_label = "git documentation";
  72our $logo_url = "http://git.or.cz/";
  73our $logo_label = "git homepage";
  74
  75# source of projects list
  76our $projects_list = "++GITWEB_LIST++";
  77
  78# the width (in characters) of the projects list "Description" column
  79our $projects_list_description_width = 25;
  80
  81# default order of projects list
  82# valid values are none, project, descr, owner, and age
  83our $default_projects_order = "project";
  84
  85# show repository only if this file exists
  86# (only effective if this variable evaluates to true)
  87our $export_ok = "++GITWEB_EXPORT_OK++";
  88
  89# only allow viewing of repositories also shown on the overview page
  90our $strict_export = "++GITWEB_STRICT_EXPORT++";
  91
  92# list of git base URLs used for URL to where fetch project from,
  93# i.e. full URL is "$git_base_url/$project"
  94our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  95
  96# default blob_plain mimetype and default charset for text/plain blob
  97our $default_blob_plain_mimetype = 'text/plain';
  98our $default_text_plain_charset  = undef;
  99
 100# file to use for guessing MIME types before trying /etc/mime.types
 101# (relative to the current git repository)
 102our $mimetypes_file = undef;
 103
 104# assume this charset if line contains non-UTF-8 characters;
 105# it should be valid encoding (see Encoding::Supported(3pm) for list),
 106# for which encoding all byte sequences are valid, for example
 107# 'iso-8859-1' aka 'latin1' (it is decoded without checking, so it
 108# could be even 'utf-8' for the old behavior)
 109our $fallback_encoding = 'latin1';
 110
 111# rename detection options for git-diff and git-diff-tree
 112# - default is '-M', with the cost proportional to
 113#   (number of removed files) * (number of new files).
 114# - more costly is '-C' (which implies '-M'), with the cost proportional to
 115#   (number of changed files + number of removed files) * (number of new files)
 116# - even more costly is '-C', '--find-copies-harder' with cost
 117#   (number of files in the original tree) * (number of new files)
 118# - one might want to include '-B' option, e.g. '-B', '-M'
 119our @diff_opts = ('-M'); # taken from git_commit
 120
 121# information about snapshot formats that gitweb is capable of serving
 122our %known_snapshot_formats = (
 123        # name => {
 124        #       'display' => display name,
 125        #       'type' => mime type,
 126        #       'suffix' => filename suffix,
 127        #       'format' => --format for git-archive,
 128        #       'compressor' => [compressor command and arguments]
 129        #                       (array reference, optional)}
 130        #
 131        'tgz' => {
 132                'display' => 'tar.gz',
 133                'type' => 'application/x-gzip',
 134                'suffix' => '.tar.gz',
 135                'format' => 'tar',
 136                'compressor' => ['gzip']},
 137
 138        'tbz2' => {
 139                'display' => 'tar.bz2',
 140                'type' => 'application/x-bzip2',
 141                'suffix' => '.tar.bz2',
 142                'format' => 'tar',
 143                'compressor' => ['bzip2']},
 144
 145        'zip' => {
 146                'display' => 'zip',
 147                'type' => 'application/x-zip',
 148                'suffix' => '.zip',
 149                'format' => 'zip'},
 150);
 151
 152# Aliases so we understand old gitweb.snapshot values in repository
 153# configuration.
 154our %known_snapshot_format_aliases = (
 155        'gzip'  => 'tgz',
 156        'bzip2' => 'tbz2',
 157
 158        # backward compatibility: legacy gitweb config support
 159        'x-gzip' => undef, 'gz' => undef,
 160        'x-bzip2' => undef, 'bz2' => undef,
 161        'x-zip' => undef, '' => undef,
 162);
 163
 164# You define site-wide feature defaults here; override them with
 165# $GITWEB_CONFIG as necessary.
 166our %feature = (
 167        # feature => {
 168        #       'sub' => feature-sub (subroutine),
 169        #       'override' => allow-override (boolean),
 170        #       'default' => [ default options...] (array reference)}
 171        #
 172        # if feature is overridable (it means that allow-override has true value),
 173        # then feature-sub will be called with default options as parameters;
 174        # return value of feature-sub indicates if to enable specified feature
 175        #
 176        # if there is no 'sub' key (no feature-sub), then feature cannot be
 177        # overriden
 178        #
 179        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 180
 181        # Enable the 'blame' blob view, showing the last commit that modified
 182        # each line in the file. This can be very CPU-intensive.
 183
 184        # To enable system wide have in $GITWEB_CONFIG
 185        # $feature{'blame'}{'default'} = [1];
 186        # To have project specific config enable override in $GITWEB_CONFIG
 187        # $feature{'blame'}{'override'} = 1;
 188        # and in project config gitweb.blame = 0|1;
 189        'blame' => {
 190                'sub' => \&feature_blame,
 191                'override' => 0,
 192                'default' => [0]},
 193
 194        # Enable the 'snapshot' link, providing a compressed archive of any
 195        # tree. This can potentially generate high traffic if you have large
 196        # project.
 197
 198        # Value is a list of formats defined in %known_snapshot_formats that
 199        # you wish to offer.
 200        # To disable system wide have in $GITWEB_CONFIG
 201        # $feature{'snapshot'}{'default'} = [];
 202        # To have project specific config enable override in $GITWEB_CONFIG
 203        # $feature{'snapshot'}{'override'} = 1;
 204        # and in project config, a comma-separated list of formats or "none"
 205        # to disable.  Example: gitweb.snapshot = tbz2,zip;
 206        'snapshot' => {
 207                'sub' => \&feature_snapshot,
 208                'override' => 0,
 209                'default' => ['tgz']},
 210
 211        # Enable text search, which will list the commits which match author,
 212        # committer or commit text to a given string.  Enabled by default.
 213        # Project specific override is not supported.
 214        'search' => {
 215                'override' => 0,
 216                'default' => [1]},
 217
 218        # Enable grep search, which will list the files in currently selected
 219        # tree containing the given string. Enabled by default. This can be
 220        # potentially CPU-intensive, of course.
 221
 222        # To enable system wide have in $GITWEB_CONFIG
 223        # $feature{'grep'}{'default'} = [1];
 224        # To have project specific config enable override in $GITWEB_CONFIG
 225        # $feature{'grep'}{'override'} = 1;
 226        # and in project config gitweb.grep = 0|1;
 227        'grep' => {
 228                'override' => 0,
 229                'default' => [1]},
 230
 231        # Enable the pickaxe search, which will list the commits that modified
 232        # a given string in a file. This can be practical and quite faster
 233        # alternative to 'blame', but still potentially CPU-intensive.
 234
 235        # To enable system wide have in $GITWEB_CONFIG
 236        # $feature{'pickaxe'}{'default'} = [1];
 237        # To have project specific config enable override in $GITWEB_CONFIG
 238        # $feature{'pickaxe'}{'override'} = 1;
 239        # and in project config gitweb.pickaxe = 0|1;
 240        'pickaxe' => {
 241                'sub' => \&feature_pickaxe,
 242                'override' => 0,
 243                'default' => [1]},
 244
 245        # Make gitweb use an alternative format of the URLs which can be
 246        # more readable and natural-looking: project name is embedded
 247        # directly in the path and the query string contains other
 248        # auxiliary information. All gitweb installations recognize
 249        # URL in either format; this configures in which formats gitweb
 250        # generates links.
 251
 252        # To enable system wide have in $GITWEB_CONFIG
 253        # $feature{'pathinfo'}{'default'} = [1];
 254        # Project specific override is not supported.
 255
 256        # Note that you will need to change the default location of CSS,
 257        # favicon, logo and possibly other files to an absolute URL. Also,
 258        # if gitweb.cgi serves as your indexfile, you will need to force
 259        # $my_uri to contain the script name in your $GITWEB_CONFIG.
 260        'pathinfo' => {
 261                'override' => 0,
 262                'default' => [0]},
 263
 264        # Make gitweb consider projects in project root subdirectories
 265        # to be forks of existing projects. Given project $projname.git,
 266        # projects matching $projname/*.git will not be shown in the main
 267        # projects list, instead a '+' mark will be added to $projname
 268        # there and a 'forks' view will be enabled for the project, listing
 269        # all the forks. If project list is taken from a file, forks have
 270        # to be listed after the main project.
 271
 272        # To enable system wide have in $GITWEB_CONFIG
 273        # $feature{'forks'}{'default'} = [1];
 274        # Project specific override is not supported.
 275        'forks' => {
 276                'override' => 0,
 277                'default' => [0]},
 278);
 279
 280sub gitweb_check_feature {
 281        my ($name) = @_;
 282        return unless exists $feature{$name};
 283        my ($sub, $override, @defaults) = (
 284                $feature{$name}{'sub'},
 285                $feature{$name}{'override'},
 286                @{$feature{$name}{'default'}});
 287        if (!$override) { return @defaults; }
 288        if (!defined $sub) {
 289                warn "feature $name is not overrideable";
 290                return @defaults;
 291        }
 292        return $sub->(@defaults);
 293}
 294
 295sub feature_blame {
 296        my ($val) = git_get_project_config('blame', '--bool');
 297
 298        if ($val eq 'true') {
 299                return 1;
 300        } elsif ($val eq 'false') {
 301                return 0;
 302        }
 303
 304        return $_[0];
 305}
 306
 307sub feature_snapshot {
 308        my (@fmts) = @_;
 309
 310        my ($val) = git_get_project_config('snapshot');
 311
 312        if ($val) {
 313                @fmts = ($val eq 'none' ? () : split /\s*[,\s]\s*/, $val);
 314        }
 315
 316        return @fmts;
 317}
 318
 319sub feature_grep {
 320        my ($val) = git_get_project_config('grep', '--bool');
 321
 322        if ($val eq 'true') {
 323                return (1);
 324        } elsif ($val eq 'false') {
 325                return (0);
 326        }
 327
 328        return ($_[0]);
 329}
 330
 331sub feature_pickaxe {
 332        my ($val) = git_get_project_config('pickaxe', '--bool');
 333
 334        if ($val eq 'true') {
 335                return (1);
 336        } elsif ($val eq 'false') {
 337                return (0);
 338        }
 339
 340        return ($_[0]);
 341}
 342
 343# checking HEAD file with -e is fragile if the repository was
 344# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 345# and then pruned.
 346sub check_head_link {
 347        my ($dir) = @_;
 348        my $headfile = "$dir/HEAD";
 349        return ((-e $headfile) ||
 350                (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 351}
 352
 353sub check_export_ok {
 354        my ($dir) = @_;
 355        return (check_head_link($dir) &&
 356                (!$export_ok || -e "$dir/$export_ok"));
 357}
 358
 359# process alternate names for backward compatibility
 360# filter out unsupported (unknown) snapshot formats
 361sub filter_snapshot_fmts {
 362        my @fmts = @_;
 363
 364        @fmts = map {
 365                exists $known_snapshot_format_aliases{$_} ?
 366                       $known_snapshot_format_aliases{$_} : $_} @fmts;
 367        @fmts = grep(exists $known_snapshot_formats{$_}, @fmts);
 368
 369}
 370
 371our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 372do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 373
 374# version of the core git binary
 375our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 376
 377$projects_list ||= $projectroot;
 378
 379# ======================================================================
 380# input validation and dispatch
 381our $action = $cgi->param('a');
 382if (defined $action) {
 383        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 384                die_error(undef, "Invalid action parameter");
 385        }
 386}
 387
 388# parameters which are pathnames
 389our $project = $cgi->param('p');
 390if (defined $project) {
 391        if (!validate_pathname($project) ||
 392            !(-d "$projectroot/$project") ||
 393            !check_head_link("$projectroot/$project") ||
 394            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 395            ($strict_export && !project_in_list($project))) {
 396                undef $project;
 397                die_error(undef, "No such project");
 398        }
 399}
 400
 401our $file_name = $cgi->param('f');
 402if (defined $file_name) {
 403        if (!validate_pathname($file_name)) {
 404                die_error(undef, "Invalid file parameter");
 405        }
 406}
 407
 408our $file_parent = $cgi->param('fp');
 409if (defined $file_parent) {
 410        if (!validate_pathname($file_parent)) {
 411                die_error(undef, "Invalid file parent parameter");
 412        }
 413}
 414
 415# parameters which are refnames
 416our $hash = $cgi->param('h');
 417if (defined $hash) {
 418        if (!validate_refname($hash)) {
 419                die_error(undef, "Invalid hash parameter");
 420        }
 421}
 422
 423our $hash_parent = $cgi->param('hp');
 424if (defined $hash_parent) {
 425        if (!validate_refname($hash_parent)) {
 426                die_error(undef, "Invalid hash parent parameter");
 427        }
 428}
 429
 430our $hash_base = $cgi->param('hb');
 431if (defined $hash_base) {
 432        if (!validate_refname($hash_base)) {
 433                die_error(undef, "Invalid hash base parameter");
 434        }
 435}
 436
 437my %allowed_options = (
 438        "--no-merges" => [ qw(rss atom log shortlog history) ],
 439);
 440
 441our @extra_options = $cgi->param('opt');
 442if (defined @extra_options) {
 443        foreach my $opt (@extra_options) {
 444                if (not exists $allowed_options{$opt}) {
 445                        die_error(undef, "Invalid option parameter");
 446                }
 447                if (not grep(/^$action$/, @{$allowed_options{$opt}})) {
 448                        die_error(undef, "Invalid option parameter for this action");
 449                }
 450        }
 451}
 452
 453our $hash_parent_base = $cgi->param('hpb');
 454if (defined $hash_parent_base) {
 455        if (!validate_refname($hash_parent_base)) {
 456                die_error(undef, "Invalid hash parent base parameter");
 457        }
 458}
 459
 460# other parameters
 461our $page = $cgi->param('pg');
 462if (defined $page) {
 463        if ($page =~ m/[^0-9]/) {
 464                die_error(undef, "Invalid page parameter");
 465        }
 466}
 467
 468our $searchtype = $cgi->param('st');
 469if (defined $searchtype) {
 470        if ($searchtype =~ m/[^a-z]/) {
 471                die_error(undef, "Invalid searchtype parameter");
 472        }
 473}
 474
 475our $searchtext = $cgi->param('s');
 476our $search_regexp;
 477if (defined $searchtext) {
 478        if (length($searchtext) < 2) {
 479                die_error(undef, "At least two characters are required for search parameter");
 480        }
 481        $search_regexp = quotemeta $searchtext;
 482}
 483
 484# now read PATH_INFO and use it as alternative to parameters
 485sub evaluate_path_info {
 486        return if defined $project;
 487        my $path_info = $ENV{"PATH_INFO"};
 488        return if !$path_info;
 489        $path_info =~ s,^/+,,;
 490        return if !$path_info;
 491        # find which part of PATH_INFO is project
 492        $project = $path_info;
 493        $project =~ s,/+$,,;
 494        while ($project && !check_head_link("$projectroot/$project")) {
 495                $project =~ s,/*[^/]*$,,;
 496        }
 497        # validate project
 498        $project = validate_pathname($project);
 499        if (!$project ||
 500            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 501            ($strict_export && !project_in_list($project))) {
 502                undef $project;
 503                return;
 504        }
 505        # do not change any parameters if an action is given using the query string
 506        return if $action;
 507        $path_info =~ s,^$project/*,,;
 508        my ($refname, $pathname) = split(/:/, $path_info, 2);
 509        if (defined $pathname) {
 510                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 511                # we could use git_get_type(branch:pathname), but it needs $git_dir
 512                $pathname =~ s,^/+,,;
 513                if (!$pathname || substr($pathname, -1) eq "/") {
 514                        $action  ||= "tree";
 515                        $pathname =~ s,/$,,;
 516                } else {
 517                        $action  ||= "blob_plain";
 518                }
 519                $hash_base ||= validate_refname($refname);
 520                $file_name ||= validate_pathname($pathname);
 521        } elsif (defined $refname) {
 522                # we got "project.git/branch"
 523                $action ||= "shortlog";
 524                $hash   ||= validate_refname($refname);
 525        }
 526}
 527evaluate_path_info();
 528
 529# path to the current git repository
 530our $git_dir;
 531$git_dir = "$projectroot/$project" if $project;
 532
 533# dispatch
 534my %actions = (
 535        "blame" => \&git_blame2,
 536        "blobdiff" => \&git_blobdiff,
 537        "blobdiff_plain" => \&git_blobdiff_plain,
 538        "blob" => \&git_blob,
 539        "blob_plain" => \&git_blob_plain,
 540        "commitdiff" => \&git_commitdiff,
 541        "commitdiff_plain" => \&git_commitdiff_plain,
 542        "commit" => \&git_commit,
 543        "forks" => \&git_forks,
 544        "heads" => \&git_heads,
 545        "history" => \&git_history,
 546        "log" => \&git_log,
 547        "rss" => \&git_rss,
 548        "atom" => \&git_atom,
 549        "search" => \&git_search,
 550        "search_help" => \&git_search_help,
 551        "shortlog" => \&git_shortlog,
 552        "summary" => \&git_summary,
 553        "tag" => \&git_tag,
 554        "tags" => \&git_tags,
 555        "tree" => \&git_tree,
 556        "snapshot" => \&git_snapshot,
 557        "object" => \&git_object,
 558        # those below don't need $project
 559        "opml" => \&git_opml,
 560        "project_list" => \&git_project_list,
 561        "project_index" => \&git_project_index,
 562);
 563
 564if (!defined $action) {
 565        if (defined $hash) {
 566                $action = git_get_type($hash);
 567        } elsif (defined $hash_base && defined $file_name) {
 568                $action = git_get_type("$hash_base:$file_name");
 569        } elsif (defined $project) {
 570                $action = 'summary';
 571        } else {
 572                $action = 'project_list';
 573        }
 574}
 575if (!defined($actions{$action})) {
 576        die_error(undef, "Unknown action");
 577}
 578if ($action !~ m/^(opml|project_list|project_index)$/ &&
 579    !$project) {
 580        die_error(undef, "Project needed");
 581}
 582$actions{$action}->();
 583exit;
 584
 585## ======================================================================
 586## action links
 587
 588sub href(%) {
 589        my %params = @_;
 590        # default is to use -absolute url() i.e. $my_uri
 591        my $href = $params{-full} ? $my_url : $my_uri;
 592
 593        # XXX: Warning: If you touch this, check the search form for updating,
 594        # too.
 595
 596        my @mapping = (
 597                project => "p",
 598                action => "a",
 599                file_name => "f",
 600                file_parent => "fp",
 601                hash => "h",
 602                hash_parent => "hp",
 603                hash_base => "hb",
 604                hash_parent_base => "hpb",
 605                page => "pg",
 606                order => "o",
 607                searchtext => "s",
 608                searchtype => "st",
 609                snapshot_format => "sf",
 610                extra_options => "opt",
 611        );
 612        my %mapping = @mapping;
 613
 614        $params{'project'} = $project unless exists $params{'project'};
 615
 616        my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 617        if ($use_pathinfo) {
 618                # use PATH_INFO for project name
 619                $href .= "/$params{'project'}" if defined $params{'project'};
 620                delete $params{'project'};
 621
 622                # Summary just uses the project path URL
 623                if (defined $params{'action'} && $params{'action'} eq 'summary') {
 624                        delete $params{'action'};
 625                }
 626        }
 627
 628        # now encode the parameters explicitly
 629        my @result = ();
 630        for (my $i = 0; $i < @mapping; $i += 2) {
 631                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 632                if (defined $params{$name}) {
 633                        if (ref($params{$name}) eq "ARRAY") {
 634                                foreach my $par (@{$params{$name}}) {
 635                                        push @result, $symbol . "=" . esc_param($par);
 636                                }
 637                        } else {
 638                                push @result, $symbol . "=" . esc_param($params{$name});
 639                        }
 640                }
 641        }
 642        $href .= "?" . join(';', @result) if scalar @result;
 643
 644        return $href;
 645}
 646
 647
 648## ======================================================================
 649## validation, quoting/unquoting and escaping
 650
 651sub validate_pathname {
 652        my $input = shift || return undef;
 653
 654        # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 655        # at the beginning, at the end, and between slashes.
 656        # also this catches doubled slashes
 657        if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 658                return undef;
 659        }
 660        # no null characters
 661        if ($input =~ m!\0!) {
 662                return undef;
 663        }
 664        return $input;
 665}
 666
 667sub validate_refname {
 668        my $input = shift || return undef;
 669
 670        # textual hashes are O.K.
 671        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 672                return $input;
 673        }
 674        # it must be correct pathname
 675        $input = validate_pathname($input)
 676                or return undef;
 677        # restrictions on ref name according to git-check-ref-format
 678        if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 679                return undef;
 680        }
 681        return $input;
 682}
 683
 684# decode sequences of octets in utf8 into Perl's internal form,
 685# which is utf-8 with utf8 flag set if needed.  gitweb writes out
 686# in utf-8 thanks to "binmode STDOUT, ':utf8'" at beginning
 687sub to_utf8 {
 688        my $str = shift;
 689        my $res;
 690        eval { $res = decode_utf8($str, Encode::FB_CROAK); };
 691        if (defined $res) {
 692                return $res;
 693        } else {
 694                return decode($fallback_encoding, $str, Encode::FB_DEFAULT);
 695        }
 696}
 697
 698# quote unsafe chars, but keep the slash, even when it's not
 699# correct, but quoted slashes look too horrible in bookmarks
 700sub esc_param {
 701        my $str = shift;
 702        $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 703        $str =~ s/\+/%2B/g;
 704        $str =~ s/ /\+/g;
 705        return $str;
 706}
 707
 708# quote unsafe chars in whole URL, so some charactrs cannot be quoted
 709sub esc_url {
 710        my $str = shift;
 711        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 712        $str =~ s/\+/%2B/g;
 713        $str =~ s/ /\+/g;
 714        return $str;
 715}
 716
 717# replace invalid utf8 character with SUBSTITUTION sequence
 718sub esc_html ($;%) {
 719        my $str = shift;
 720        my %opts = @_;
 721
 722        $str = to_utf8($str);
 723        $str = $cgi->escapeHTML($str);
 724        if ($opts{'-nbsp'}) {
 725                $str =~ s/ /&nbsp;/g;
 726        }
 727        $str =~ s|([[:cntrl:]])|(($1 ne "\t") ? quot_cec($1) : $1)|eg;
 728        return $str;
 729}
 730
 731# quote control characters and escape filename to HTML
 732sub esc_path {
 733        my $str = shift;
 734        my %opts = @_;
 735
 736        $str = to_utf8($str);
 737        $str = $cgi->escapeHTML($str);
 738        if ($opts{'-nbsp'}) {
 739                $str =~ s/ /&nbsp;/g;
 740        }
 741        $str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
 742        return $str;
 743}
 744
 745# Make control characters "printable", using character escape codes (CEC)
 746sub quot_cec {
 747        my $cntrl = shift;
 748        my %es = ( # character escape codes, aka escape sequences
 749                   "\t" => '\t',   # tab            (HT)
 750                   "\n" => '\n',   # line feed      (LF)
 751                   "\r" => '\r',   # carrige return (CR)
 752                   "\f" => '\f',   # form feed      (FF)
 753                   "\b" => '\b',   # backspace      (BS)
 754                   "\a" => '\a',   # alarm (bell)   (BEL)
 755                   "\e" => '\e',   # escape         (ESC)
 756                   "\013" => '\v', # vertical tab   (VT)
 757                   "\000" => '\0', # nul character  (NUL)
 758                   );
 759        my $chr = ( (exists $es{$cntrl})
 760                    ? $es{$cntrl}
 761                    : sprintf('\%03o', ord($cntrl)) );
 762        return "<span class=\"cntrl\">$chr</span>";
 763}
 764
 765# Alternatively use unicode control pictures codepoints,
 766# Unicode "printable representation" (PR)
 767sub quot_upr {
 768        my $cntrl = shift;
 769        my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
 770        return "<span class=\"cntrl\">$chr</span>";
 771}
 772
 773# git may return quoted and escaped filenames
 774sub unquote {
 775        my $str = shift;
 776
 777        sub unq {
 778                my $seq = shift;
 779                my %es = ( # character escape codes, aka escape sequences
 780                        't' => "\t",   # tab            (HT, TAB)
 781                        'n' => "\n",   # newline        (NL)
 782                        'r' => "\r",   # return         (CR)
 783                        'f' => "\f",   # form feed      (FF)
 784                        'b' => "\b",   # backspace      (BS)
 785                        'a' => "\a",   # alarm (bell)   (BEL)
 786                        'e' => "\e",   # escape         (ESC)
 787                        'v' => "\013", # vertical tab   (VT)
 788                );
 789
 790                if ($seq =~ m/^[0-7]{1,3}$/) {
 791                        # octal char sequence
 792                        return chr(oct($seq));
 793                } elsif (exists $es{$seq}) {
 794                        # C escape sequence, aka character escape code
 795                        return $es{$seq}
 796                }
 797                # quoted ordinary character
 798                return $seq;
 799        }
 800
 801        if ($str =~ m/^"(.*)"$/) {
 802                # needs unquoting
 803                $str = $1;
 804                $str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
 805        }
 806        return $str;
 807}
 808
 809# escape tabs (convert tabs to spaces)
 810sub untabify {
 811        my $line = shift;
 812
 813        while ((my $pos = index($line, "\t")) != -1) {
 814                if (my $count = (8 - ($pos % 8))) {
 815                        my $spaces = ' ' x $count;
 816                        $line =~ s/\t/$spaces/;
 817                }
 818        }
 819
 820        return $line;
 821}
 822
 823sub project_in_list {
 824        my $project = shift;
 825        my @list = git_get_projects_list();
 826        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 827}
 828
 829## ----------------------------------------------------------------------
 830## HTML aware string manipulation
 831
 832sub chop_str {
 833        my $str = shift;
 834        my $len = shift;
 835        my $add_len = shift || 10;
 836
 837        # allow only $len chars, but don't cut a word if it would fit in $add_len
 838        # if it doesn't fit, cut it if it's still longer than the dots we would add
 839        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 840        my $body = $1;
 841        my $tail = $2;
 842        if (length($tail) > 4) {
 843                $tail = " ...";
 844                $body =~ s/&[^;]*$//; # remove chopped character entities
 845        }
 846        return "$body$tail";
 847}
 848
 849## ----------------------------------------------------------------------
 850## functions returning short strings
 851
 852# CSS class for given age value (in seconds)
 853sub age_class {
 854        my $age = shift;
 855
 856        if (!defined $age) {
 857                return "noage";
 858        } elsif ($age < 60*60*2) {
 859                return "age0";
 860        } elsif ($age < 60*60*24*2) {
 861                return "age1";
 862        } else {
 863                return "age2";
 864        }
 865}
 866
 867# convert age in seconds to "nn units ago" string
 868sub age_string {
 869        my $age = shift;
 870        my $age_str;
 871
 872        if ($age > 60*60*24*365*2) {
 873                $age_str = (int $age/60/60/24/365);
 874                $age_str .= " years ago";
 875        } elsif ($age > 60*60*24*(365/12)*2) {
 876                $age_str = int $age/60/60/24/(365/12);
 877                $age_str .= " months ago";
 878        } elsif ($age > 60*60*24*7*2) {
 879                $age_str = int $age/60/60/24/7;
 880                $age_str .= " weeks ago";
 881        } elsif ($age > 60*60*24*2) {
 882                $age_str = int $age/60/60/24;
 883                $age_str .= " days ago";
 884        } elsif ($age > 60*60*2) {
 885                $age_str = int $age/60/60;
 886                $age_str .= " hours ago";
 887        } elsif ($age > 60*2) {
 888                $age_str = int $age/60;
 889                $age_str .= " min ago";
 890        } elsif ($age > 2) {
 891                $age_str = int $age;
 892                $age_str .= " sec ago";
 893        } else {
 894                $age_str .= " right now";
 895        }
 896        return $age_str;
 897}
 898
 899use constant {
 900        S_IFINVALID => 0030000,
 901        S_IFGITLINK => 0160000,
 902};
 903
 904# submodule/subproject, a commit object reference
 905sub S_ISGITLINK($) {
 906        my $mode = shift;
 907
 908        return (($mode & S_IFMT) == S_IFGITLINK)
 909}
 910
 911# convert file mode in octal to symbolic file mode string
 912sub mode_str {
 913        my $mode = oct shift;
 914
 915        if (S_ISGITLINK($mode)) {
 916                return 'm---------';
 917        } elsif (S_ISDIR($mode & S_IFMT)) {
 918                return 'drwxr-xr-x';
 919        } elsif (S_ISLNK($mode)) {
 920                return 'lrwxrwxrwx';
 921        } elsif (S_ISREG($mode)) {
 922                # git cares only about the executable bit
 923                if ($mode & S_IXUSR) {
 924                        return '-rwxr-xr-x';
 925                } else {
 926                        return '-rw-r--r--';
 927                };
 928        } else {
 929                return '----------';
 930        }
 931}
 932
 933# convert file mode in octal to file type string
 934sub file_type {
 935        my $mode = shift;
 936
 937        if ($mode !~ m/^[0-7]+$/) {
 938                return $mode;
 939        } else {
 940                $mode = oct $mode;
 941        }
 942
 943        if (S_ISGITLINK($mode)) {
 944                return "submodule";
 945        } elsif (S_ISDIR($mode & S_IFMT)) {
 946                return "directory";
 947        } elsif (S_ISLNK($mode)) {
 948                return "symlink";
 949        } elsif (S_ISREG($mode)) {
 950                return "file";
 951        } else {
 952                return "unknown";
 953        }
 954}
 955
 956# convert file mode in octal to file type description string
 957sub file_type_long {
 958        my $mode = shift;
 959
 960        if ($mode !~ m/^[0-7]+$/) {
 961                return $mode;
 962        } else {
 963                $mode = oct $mode;
 964        }
 965
 966        if (S_ISGITLINK($mode)) {
 967                return "submodule";
 968        } elsif (S_ISDIR($mode & S_IFMT)) {
 969                return "directory";
 970        } elsif (S_ISLNK($mode)) {
 971                return "symlink";
 972        } elsif (S_ISREG($mode)) {
 973                if ($mode & S_IXUSR) {
 974                        return "executable";
 975                } else {
 976                        return "file";
 977                };
 978        } else {
 979                return "unknown";
 980        }
 981}
 982
 983
 984## ----------------------------------------------------------------------
 985## functions returning short HTML fragments, or transforming HTML fragments
 986## which don't belong to other sections
 987
 988# format line of commit message.
 989sub format_log_line_html {
 990        my $line = shift;
 991
 992        $line = esc_html($line, -nbsp=>1);
 993        if ($line =~ m/([0-9a-fA-F]{8,40})/) {
 994                my $hash_text = $1;
 995                my $link =
 996                        $cgi->a({-href => href(action=>"object", hash=>$hash_text),
 997                                -class => "text"}, $hash_text);
 998                $line =~ s/$hash_text/$link/;
 999        }
1000        return $line;
1001}
1002
1003# format marker of refs pointing to given object
1004sub format_ref_marker {
1005        my ($refs, $id) = @_;
1006        my $markers = '';
1007
1008        if (defined $refs->{$id}) {
1009                foreach my $ref (@{$refs->{$id}}) {
1010                        my ($type, $name) = qw();
1011                        # e.g. tags/v2.6.11 or heads/next
1012                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
1013                                $type = $1;
1014                                $name = $2;
1015                        } else {
1016                                $type = "ref";
1017                                $name = $ref;
1018                        }
1019
1020                        $markers .= " <span class=\"$type\" title=\"$ref\">" .
1021                                    esc_html($name) . "</span>";
1022                }
1023        }
1024
1025        if ($markers) {
1026                return ' <span class="refs">'. $markers . '</span>';
1027        } else {
1028                return "";
1029        }
1030}
1031
1032# format, perhaps shortened and with markers, title line
1033sub format_subject_html {
1034        my ($long, $short, $href, $extra) = @_;
1035        $extra = '' unless defined($extra);
1036
1037        if (length($short) < length($long)) {
1038                return $cgi->a({-href => $href, -class => "list subject",
1039                                -title => to_utf8($long)},
1040                       esc_html($short) . $extra);
1041        } else {
1042                return $cgi->a({-href => $href, -class => "list subject"},
1043                       esc_html($long)  . $extra);
1044        }
1045}
1046
1047# format git diff header line, i.e. "diff --(git|combined|cc) ..."
1048sub format_git_diff_header_line {
1049        my $line = shift;
1050        my $diffinfo = shift;
1051        my ($from, $to) = @_;
1052
1053        if ($diffinfo->{'nparents'}) {
1054                # combined diff
1055                $line =~ s!^(diff (.*?) )"?.*$!$1!;
1056                if ($to->{'href'}) {
1057                        $line .= $cgi->a({-href => $to->{'href'}, -class => "path"},
1058                                         esc_path($to->{'file'}));
1059                } else { # file was deleted (no href)
1060                        $line .= esc_path($to->{'file'});
1061                }
1062        } else {
1063                # "ordinary" diff
1064                $line =~ s!^(diff (.*?) )"?a/.*$!$1!;
1065                if ($from->{'href'}) {
1066                        $line .= $cgi->a({-href => $from->{'href'}, -class => "path"},
1067                                         'a/' . esc_path($from->{'file'}));
1068                } else { # file was added (no href)
1069                        $line .= 'a/' . esc_path($from->{'file'});
1070                }
1071                $line .= ' ';
1072                if ($to->{'href'}) {
1073                        $line .= $cgi->a({-href => $to->{'href'}, -class => "path"},
1074                                         'b/' . esc_path($to->{'file'}));
1075                } else { # file was deleted
1076                        $line .= 'b/' . esc_path($to->{'file'});
1077                }
1078        }
1079
1080        return "<div class=\"diff header\">$line</div>\n";
1081}
1082
1083# format extended diff header line, before patch itself
1084sub format_extended_diff_header_line {
1085        my $line = shift;
1086        my $diffinfo = shift;
1087        my ($from, $to) = @_;
1088
1089        # match <path>
1090        if ($line =~ s!^((copy|rename) from ).*$!$1! && $from->{'href'}) {
1091                $line .= $cgi->a({-href=>$from->{'href'}, -class=>"path"},
1092                                       esc_path($from->{'file'}));
1093        }
1094        if ($line =~ s!^((copy|rename) to ).*$!$1! && $to->{'href'}) {
1095                $line .= $cgi->a({-href=>$to->{'href'}, -class=>"path"},
1096                                 esc_path($to->{'file'}));
1097        }
1098        # match single <mode>
1099        if ($line =~ m/\s(\d{6})$/) {
1100                $line .= '<span class="info"> (' .
1101                         file_type_long($1) .
1102                         ')</span>';
1103        }
1104        # match <hash>
1105        if ($line =~ m/^index [0-9a-fA-F]{40},[0-9a-fA-F]{40}/) {
1106                # can match only for combined diff
1107                $line = 'index ';
1108                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
1109                        if ($from->{'href'}[$i]) {
1110                                $line .= $cgi->a({-href=>$from->{'href'}[$i],
1111                                                  -class=>"hash"},
1112                                                 substr($diffinfo->{'from_id'}[$i],0,7));
1113                        } else {
1114                                $line .= '0' x 7;
1115                        }
1116                        # separator
1117                        $line .= ',' if ($i < $diffinfo->{'nparents'} - 1);
1118                }
1119                $line .= '..';
1120                if ($to->{'href'}) {
1121                        $line .= $cgi->a({-href=>$to->{'href'}, -class=>"hash"},
1122                                         substr($diffinfo->{'to_id'},0,7));
1123                } else {
1124                        $line .= '0' x 7;
1125                }
1126
1127        } elsif ($line =~ m/^index [0-9a-fA-F]{40}..[0-9a-fA-F]{40}/) {
1128                # can match only for ordinary diff
1129                my ($from_link, $to_link);
1130                if ($from->{'href'}) {
1131                        $from_link = $cgi->a({-href=>$from->{'href'}, -class=>"hash"},
1132                                             substr($diffinfo->{'from_id'},0,7));
1133                } else {
1134                        $from_link = '0' x 7;
1135                }
1136                if ($to->{'href'}) {
1137                        $to_link = $cgi->a({-href=>$to->{'href'}, -class=>"hash"},
1138                                           substr($diffinfo->{'to_id'},0,7));
1139                } else {
1140                        $to_link = '0' x 7;
1141                }
1142                my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
1143                $line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
1144        }
1145
1146        return $line . "<br/>\n";
1147}
1148
1149# format from-file/to-file diff header
1150sub format_diff_from_to_header {
1151        my ($from_line, $to_line, $diffinfo, $from, $to, @parents) = @_;
1152        my $line;
1153        my $result = '';
1154
1155        $line = $from_line;
1156        #assert($line =~ m/^---/) if DEBUG;
1157        # no extra formatting for "^--- /dev/null"
1158        if (! $diffinfo->{'nparents'}) {
1159                # ordinary (single parent) diff
1160                if ($line =~ m!^--- "?a/!) {
1161                        if ($from->{'href'}) {
1162                                $line = '--- a/' .
1163                                        $cgi->a({-href=>$from->{'href'}, -class=>"path"},
1164                                                esc_path($from->{'file'}));
1165                        } else {
1166                                $line = '--- a/' .
1167                                        esc_path($from->{'file'});
1168                        }
1169                }
1170                $result .= qq!<div class="diff from_file">$line</div>\n!;
1171
1172        } else {
1173                # combined diff (merge commit)
1174                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
1175                        if ($from->{'href'}[$i]) {
1176                                $line = '--- ' .
1177                                        $cgi->a({-href=>href(action=>"blobdiff",
1178                                                             hash_parent=>$diffinfo->{'from_id'}[$i],
1179                                                             hash_parent_base=>$parents[$i],
1180                                                             file_parent=>$from->{'file'}[$i],
1181                                                             hash=>$diffinfo->{'to_id'},
1182                                                             hash_base=>$hash,
1183                                                             file_name=>$to->{'file'}),
1184                                                 -class=>"path",
1185                                                 -title=>"diff" . ($i+1)},
1186                                                $i+1) .
1187                                        '/' .
1188                                        $cgi->a({-href=>$from->{'href'}[$i], -class=>"path"},
1189                                                esc_path($from->{'file'}[$i]));
1190                        } else {
1191                                $line = '--- /dev/null';
1192                        }
1193                        $result .= qq!<div class="diff from_file">$line</div>\n!;
1194                }
1195        }
1196
1197        $line = $to_line;
1198        #assert($line =~ m/^\+\+\+/) if DEBUG;
1199        # no extra formatting for "^+++ /dev/null"
1200        if ($line =~ m!^\+\+\+ "?b/!) {
1201                if ($to->{'href'}) {
1202                        $line = '+++ b/' .
1203                                $cgi->a({-href=>$to->{'href'}, -class=>"path"},
1204                                        esc_path($to->{'file'}));
1205                } else {
1206                        $line = '+++ b/' .
1207                                esc_path($to->{'file'});
1208                }
1209        }
1210        $result .= qq!<div class="diff to_file">$line</div>\n!;
1211
1212        return $result;
1213}
1214
1215# create note for patch simplified by combined diff
1216sub format_diff_cc_simplified {
1217        my ($diffinfo, @parents) = @_;
1218        my $result = '';
1219
1220        $result .= "<div class=\"diff header\">" .
1221                   "diff --cc ";
1222        if (!is_deleted($diffinfo)) {
1223                $result .= $cgi->a({-href => href(action=>"blob",
1224                                                  hash_base=>$hash,
1225                                                  hash=>$diffinfo->{'to_id'},
1226                                                  file_name=>$diffinfo->{'to_file'}),
1227                                    -class => "path"},
1228                                   esc_path($diffinfo->{'to_file'}));
1229        } else {
1230                $result .= esc_path($diffinfo->{'to_file'});
1231        }
1232        $result .= "</div>\n" . # class="diff header"
1233                   "<div class=\"diff nodifferences\">" .
1234                   "Simple merge" .
1235                   "</div>\n"; # class="diff nodifferences"
1236
1237        return $result;
1238}
1239
1240# format patch (diff) line (not to be used for diff headers)
1241sub format_diff_line {
1242        my $line = shift;
1243        my ($from, $to) = @_;
1244        my $diff_class = "";
1245
1246        chomp $line;
1247
1248        if ($from && $to && ref($from->{'href'}) eq "ARRAY") {
1249                # combined diff
1250                my $prefix = substr($line, 0, scalar @{$from->{'href'}});
1251                if ($line =~ m/^\@{3}/) {
1252                        $diff_class = " chunk_header";
1253                } elsif ($line =~ m/^\\/) {
1254                        $diff_class = " incomplete";
1255                } elsif ($prefix =~ tr/+/+/) {
1256                        $diff_class = " add";
1257                } elsif ($prefix =~ tr/-/-/) {
1258                        $diff_class = " rem";
1259                }
1260        } else {
1261                # assume ordinary diff
1262                my $char = substr($line, 0, 1);
1263                if ($char eq '+') {
1264                        $diff_class = " add";
1265                } elsif ($char eq '-') {
1266                        $diff_class = " rem";
1267                } elsif ($char eq '@') {
1268                        $diff_class = " chunk_header";
1269                } elsif ($char eq "\\") {
1270                        $diff_class = " incomplete";
1271                }
1272        }
1273        $line = untabify($line);
1274        if ($from && $to && $line =~ m/^\@{2} /) {
1275                my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
1276                        $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
1277
1278                $from_lines = 0 unless defined $from_lines;
1279                $to_lines   = 0 unless defined $to_lines;
1280
1281                if ($from->{'href'}) {
1282                        $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
1283                                             -class=>"list"}, $from_text);
1284                }
1285                if ($to->{'href'}) {
1286                        $to_text   = $cgi->a({-href=>"$to->{'href'}#l$to_start",
1287                                             -class=>"list"}, $to_text);
1288                }
1289                $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
1290                        "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
1291                return "<div class=\"diff$diff_class\">$line</div>\n";
1292        } elsif ($from && $to && $line =~ m/^\@{3}/) {
1293                my ($prefix, $ranges, $section) = $line =~ m/^(\@+) (.*?) \@+(.*)$/;
1294                my (@from_text, @from_start, @from_nlines, $to_text, $to_start, $to_nlines);
1295
1296                @from_text = split(' ', $ranges);
1297                for (my $i = 0; $i < @from_text; ++$i) {
1298                        ($from_start[$i], $from_nlines[$i]) =
1299                                (split(',', substr($from_text[$i], 1)), 0);
1300                }
1301
1302                $to_text   = pop @from_text;
1303                $to_start  = pop @from_start;
1304                $to_nlines = pop @from_nlines;
1305
1306                $line = "<span class=\"chunk_info\">$prefix ";
1307                for (my $i = 0; $i < @from_text; ++$i) {
1308                        if ($from->{'href'}[$i]) {
1309                                $line .= $cgi->a({-href=>"$from->{'href'}[$i]#l$from_start[$i]",
1310                                                  -class=>"list"}, $from_text[$i]);
1311                        } else {
1312                                $line .= $from_text[$i];
1313                        }
1314                        $line .= " ";
1315                }
1316                if ($to->{'href'}) {
1317                        $line .= $cgi->a({-href=>"$to->{'href'}#l$to_start",
1318                                          -class=>"list"}, $to_text);
1319                } else {
1320                        $line .= $to_text;
1321                }
1322                $line .= " $prefix</span>" .
1323                         "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
1324                return "<div class=\"diff$diff_class\">$line</div>\n";
1325        }
1326        return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
1327}
1328
1329# Generates undef or something like "_snapshot_" or "snapshot (_tbz2_ _zip_)",
1330# linked.  Pass the hash of the tree/commit to snapshot.
1331sub format_snapshot_links {
1332        my ($hash) = @_;
1333        my @snapshot_fmts = gitweb_check_feature('snapshot');
1334        @snapshot_fmts = filter_snapshot_fmts(@snapshot_fmts);
1335        my $num_fmts = @snapshot_fmts;
1336        if ($num_fmts > 1) {
1337                # A parenthesized list of links bearing format names.
1338                # e.g. "snapshot (_tar.gz_ _zip_)"
1339                return "snapshot (" . join(' ', map
1340                        $cgi->a({
1341                                -href => href(
1342                                        action=>"snapshot",
1343                                        hash=>$hash,
1344                                        snapshot_format=>$_
1345                                )
1346                        }, $known_snapshot_formats{$_}{'display'})
1347                , @snapshot_fmts) . ")";
1348        } elsif ($num_fmts == 1) {
1349                # A single "snapshot" link whose tooltip bears the format name.
1350                # i.e. "_snapshot_"
1351                my ($fmt) = @snapshot_fmts;
1352                return
1353                        $cgi->a({
1354                                -href => href(
1355                                        action=>"snapshot",
1356                                        hash=>$hash,
1357                                        snapshot_format=>$fmt
1358                                ),
1359                                -title => "in format: $known_snapshot_formats{$fmt}{'display'}"
1360                        }, "snapshot");
1361        } else { # $num_fmts == 0
1362                return undef;
1363        }
1364}
1365
1366## ----------------------------------------------------------------------
1367## git utility subroutines, invoking git commands
1368
1369# returns path to the core git executable and the --git-dir parameter as list
1370sub git_cmd {
1371        return $GIT, '--git-dir='.$git_dir;
1372}
1373
1374# returns path to the core git executable and the --git-dir parameter as string
1375sub git_cmd_str {
1376        return join(' ', git_cmd());
1377}
1378
1379# get HEAD ref of given project as hash
1380sub git_get_head_hash {
1381        my $project = shift;
1382        my $o_git_dir = $git_dir;
1383        my $retval = undef;
1384        $git_dir = "$projectroot/$project";
1385        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
1386                my $head = <$fd>;
1387                close $fd;
1388                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
1389                        $retval = $1;
1390                }
1391        }
1392        if (defined $o_git_dir) {
1393                $git_dir = $o_git_dir;
1394        }
1395        return $retval;
1396}
1397
1398# get type of given object
1399sub git_get_type {
1400        my $hash = shift;
1401
1402        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
1403        my $type = <$fd>;
1404        close $fd or return;
1405        chomp $type;
1406        return $type;
1407}
1408
1409sub git_get_project_config {
1410        my ($key, $type) = @_;
1411
1412        return unless ($key);
1413        $key =~ s/^gitweb\.//;
1414        return if ($key =~ m/\W/);
1415
1416        my @x = (git_cmd(), 'config');
1417        if (defined $type) { push @x, $type; }
1418        push @x, "--get";
1419        push @x, "gitweb.$key";
1420        my $val = qx(@x);
1421        chomp $val;
1422        return ($val);
1423}
1424
1425# get hash of given path at given ref
1426sub git_get_hash_by_path {
1427        my $base = shift;
1428        my $path = shift || return undef;
1429        my $type = shift;
1430
1431        $path =~ s,/+$,,;
1432
1433        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
1434                or die_error(undef, "Open git-ls-tree failed");
1435        my $line = <$fd>;
1436        close $fd or return undef;
1437
1438        if (!defined $line) {
1439                # there is no tree or hash given by $path at $base
1440                return undef;
1441        }
1442
1443        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1444        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
1445        if (defined $type && $type ne $2) {
1446                # type doesn't match
1447                return undef;
1448        }
1449        return $3;
1450}
1451
1452# get path of entry with given hash at given tree-ish (ref)
1453# used to get 'from' filename for combined diff (merge commit) for renames
1454sub git_get_path_by_hash {
1455        my $base = shift || return;
1456        my $hash = shift || return;
1457
1458        local $/ = "\0";
1459
1460        open my $fd, "-|", git_cmd(), "ls-tree", '-r', '-t', '-z', $base
1461                or return undef;
1462        while (my $line = <$fd>) {
1463                chomp $line;
1464
1465                #'040000 tree 595596a6a9117ddba9fe379b6b012b558bac8423  gitweb'
1466                #'100644 blob e02e90f0429be0d2a69b76571101f20b8f75530f  gitweb/README'
1467                if ($line =~ m/(?:[0-9]+) (?:.+) $hash\t(.+)$/) {
1468                        close $fd;
1469                        return $1;
1470                }
1471        }
1472        close $fd;
1473        return undef;
1474}
1475
1476## ......................................................................
1477## git utility functions, directly accessing git repository
1478
1479sub git_get_project_description {
1480        my $path = shift;
1481
1482        open my $fd, "$projectroot/$path/description" or return undef;
1483        my $descr = <$fd>;
1484        close $fd;
1485        if (defined $descr) {
1486                chomp $descr;
1487        }
1488        return $descr;
1489}
1490
1491sub git_get_project_url_list {
1492        my $path = shift;
1493
1494        open my $fd, "$projectroot/$path/cloneurl" or return;
1495        my @git_project_url_list = map { chomp; $_ } <$fd>;
1496        close $fd;
1497
1498        return wantarray ? @git_project_url_list : \@git_project_url_list;
1499}
1500
1501sub git_get_projects_list {
1502        my ($filter) = @_;
1503        my @list;
1504
1505        $filter ||= '';
1506        $filter =~ s/\.git$//;
1507
1508        my ($check_forks) = gitweb_check_feature('forks');
1509
1510        if (-d $projects_list) {
1511                # search in directory
1512                my $dir = $projects_list . ($filter ? "/$filter" : '');
1513                # remove the trailing "/"
1514                $dir =~ s!/+$!!;
1515                my $pfxlen = length("$dir");
1516                my $pfxdepth = ($dir =~ tr!/!!);
1517
1518                File::Find::find({
1519                        follow_fast => 1, # follow symbolic links
1520                        follow_skip => 2, # ignore duplicates
1521                        dangling_symlinks => 0, # ignore dangling symlinks, silently
1522                        wanted => sub {
1523                                # skip project-list toplevel, if we get it.
1524                                return if (m!^[/.]$!);
1525                                # only directories can be git repositories
1526                                return unless (-d $_);
1527                                # don't traverse too deep (Find is super slow on os x)
1528                                if (($File::Find::name =~ tr!/!!) - $pfxdepth > $project_maxdepth) {
1529                                        $File::Find::prune = 1;
1530                                        return;
1531                                }
1532
1533                                my $subdir = substr($File::Find::name, $pfxlen + 1);
1534                                # we check related file in $projectroot
1535                                if ($check_forks and $subdir =~ m#/.#) {
1536                                        $File::Find::prune = 1;
1537                                } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1538                                        push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1539                                        $File::Find::prune = 1;
1540                                }
1541                        },
1542                }, "$dir");
1543
1544        } elsif (-f $projects_list) {
1545                # read from file(url-encoded):
1546                # 'git%2Fgit.git Linus+Torvalds'
1547                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1548                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1549                my %paths;
1550                open my ($fd), $projects_list or return;
1551        PROJECT:
1552                while (my $line = <$fd>) {
1553                        chomp $line;
1554                        my ($path, $owner) = split ' ', $line;
1555                        $path = unescape($path);
1556                        $owner = unescape($owner);
1557                        if (!defined $path) {
1558                                next;
1559                        }
1560                        if ($filter ne '') {
1561                                # looking for forks;
1562                                my $pfx = substr($path, 0, length($filter));
1563                                if ($pfx ne $filter) {
1564                                        next PROJECT;
1565                                }
1566                                my $sfx = substr($path, length($filter));
1567                                if ($sfx !~ /^\/.*\.git$/) {
1568                                        next PROJECT;
1569                                }
1570                        } elsif ($check_forks) {
1571                        PATH:
1572                                foreach my $filter (keys %paths) {
1573                                        # looking for forks;
1574                                        my $pfx = substr($path, 0, length($filter));
1575                                        if ($pfx ne $filter) {
1576                                                next PATH;
1577                                        }
1578                                        my $sfx = substr($path, length($filter));
1579                                        if ($sfx !~ /^\/.*\.git$/) {
1580                                                next PATH;
1581                                        }
1582                                        # is a fork, don't include it in
1583                                        # the list
1584                                        next PROJECT;
1585                                }
1586                        }
1587                        if (check_export_ok("$projectroot/$path")) {
1588                                my $pr = {
1589                                        path => $path,
1590                                        owner => to_utf8($owner),
1591                                };
1592                                push @list, $pr;
1593                                (my $forks_path = $path) =~ s/\.git$//;
1594                                $paths{$forks_path}++;
1595                        }
1596                }
1597                close $fd;
1598        }
1599        return @list;
1600}
1601
1602our $gitweb_project_owner = undef;
1603sub git_get_project_list_from_file {
1604
1605        return if (defined $gitweb_project_owner);
1606
1607        $gitweb_project_owner = {};
1608        # read from file (url-encoded):
1609        # 'git%2Fgit.git Linus+Torvalds'
1610        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1611        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1612        if (-f $projects_list) {
1613                open (my $fd , $projects_list);
1614                while (my $line = <$fd>) {
1615                        chomp $line;
1616                        my ($pr, $ow) = split ' ', $line;
1617                        $pr = unescape($pr);
1618                        $ow = unescape($ow);
1619                        $gitweb_project_owner->{$pr} = to_utf8($ow);
1620                }
1621                close $fd;
1622        }
1623}
1624
1625sub git_get_project_owner {
1626        my $project = shift;
1627        my $owner;
1628
1629        return undef unless $project;
1630
1631        if (!defined $gitweb_project_owner) {
1632                git_get_project_list_from_file();
1633        }
1634
1635        if (exists $gitweb_project_owner->{$project}) {
1636                $owner = $gitweb_project_owner->{$project};
1637        }
1638        if (!defined $owner) {
1639                $owner = get_file_owner("$projectroot/$project");
1640        }
1641
1642        return $owner;
1643}
1644
1645sub git_get_last_activity {
1646        my ($path) = @_;
1647        my $fd;
1648
1649        $git_dir = "$projectroot/$path";
1650        open($fd, "-|", git_cmd(), 'for-each-ref',
1651             '--format=%(committer)',
1652             '--sort=-committerdate',
1653             '--count=1',
1654             'refs/heads') or return;
1655        my $most_recent = <$fd>;
1656        close $fd or return;
1657        if (defined $most_recent &&
1658            $most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1659                my $timestamp = $1;
1660                my $age = time - $timestamp;
1661                return ($age, age_string($age));
1662        }
1663        return (undef, undef);
1664}
1665
1666sub git_get_references {
1667        my $type = shift || "";
1668        my %refs;
1669        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
1670        # c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
1671        open my $fd, "-|", git_cmd(), "show-ref", "--dereference",
1672                ($type ? ("--", "refs/$type") : ()) # use -- <pattern> if $type
1673                or return;
1674
1675        while (my $line = <$fd>) {
1676                chomp $line;
1677                if ($line =~ m!^([0-9a-fA-F]{40})\srefs/($type/?[^^]+)!) {
1678                        if (defined $refs{$1}) {
1679                                push @{$refs{$1}}, $2;
1680                        } else {
1681                                $refs{$1} = [ $2 ];
1682                        }
1683                }
1684        }
1685        close $fd or return;
1686        return \%refs;
1687}
1688
1689sub git_get_rev_name_tags {
1690        my $hash = shift || return undef;
1691
1692        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1693                or return;
1694        my $name_rev = <$fd>;
1695        close $fd;
1696
1697        if ($name_rev =~ m|^$hash tags/(.*)$|) {
1698                return $1;
1699        } else {
1700                # catches also '$hash undefined' output
1701                return undef;
1702        }
1703}
1704
1705## ----------------------------------------------------------------------
1706## parse to hash functions
1707
1708sub parse_date {
1709        my $epoch = shift;
1710        my $tz = shift || "-0000";
1711
1712        my %date;
1713        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1714        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1715        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1716        $date{'hour'} = $hour;
1717        $date{'minute'} = $min;
1718        $date{'mday'} = $mday;
1719        $date{'day'} = $days[$wday];
1720        $date{'month'} = $months[$mon];
1721        $date{'rfc2822'}   = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1722                             $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1723        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1724                             $mday, $months[$mon], $hour ,$min;
1725        $date{'iso-8601'}  = sprintf "%04d-%02d-%02dT%02d:%02d:%02dZ",
1726                             1900+$year, $mon, $mday, $hour ,$min, $sec;
1727
1728        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1729        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1730        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1731        $date{'hour_local'} = $hour;
1732        $date{'minute_local'} = $min;
1733        $date{'tz_local'} = $tz;
1734        $date{'iso-tz'} = sprintf("%04d-%02d-%02d %02d:%02d:%02d %s",
1735                                  1900+$year, $mon+1, $mday,
1736                                  $hour, $min, $sec, $tz);
1737        return %date;
1738}
1739
1740sub parse_tag {
1741        my $tag_id = shift;
1742        my %tag;
1743        my @comment;
1744
1745        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1746        $tag{'id'} = $tag_id;
1747        while (my $line = <$fd>) {
1748                chomp $line;
1749                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1750                        $tag{'object'} = $1;
1751                } elsif ($line =~ m/^type (.+)$/) {
1752                        $tag{'type'} = $1;
1753                } elsif ($line =~ m/^tag (.+)$/) {
1754                        $tag{'name'} = $1;
1755                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1756                        $tag{'author'} = $1;
1757                        $tag{'epoch'} = $2;
1758                        $tag{'tz'} = $3;
1759                } elsif ($line =~ m/--BEGIN/) {
1760                        push @comment, $line;
1761                        last;
1762                } elsif ($line eq "") {
1763                        last;
1764                }
1765        }
1766        push @comment, <$fd>;
1767        $tag{'comment'} = \@comment;
1768        close $fd or return;
1769        if (!defined $tag{'name'}) {
1770                return
1771        };
1772        return %tag
1773}
1774
1775sub parse_commit_text {
1776        my ($commit_text, $withparents) = @_;
1777        my @commit_lines = split '\n', $commit_text;
1778        my %co;
1779
1780        pop @commit_lines; # Remove '\0'
1781
1782        if (! @commit_lines) {
1783                return;
1784        }
1785
1786        my $header = shift @commit_lines;
1787        if ($header !~ m/^[0-9a-fA-F]{40}/) {
1788                return;
1789        }
1790        ($co{'id'}, my @parents) = split ' ', $header;
1791        while (my $line = shift @commit_lines) {
1792                last if $line eq "\n";
1793                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1794                        $co{'tree'} = $1;
1795                } elsif ((!defined $withparents) && ($line =~ m/^parent ([0-9a-fA-F]{40})$/)) {
1796                        push @parents, $1;
1797                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1798                        $co{'author'} = $1;
1799                        $co{'author_epoch'} = $2;
1800                        $co{'author_tz'} = $3;
1801                        if ($co{'author'} =~ m/^([^<]+) <([^>]*)>/) {
1802                                $co{'author_name'}  = $1;
1803                                $co{'author_email'} = $2;
1804                        } else {
1805                                $co{'author_name'} = $co{'author'};
1806                        }
1807                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1808                        $co{'committer'} = $1;
1809                        $co{'committer_epoch'} = $2;
1810                        $co{'committer_tz'} = $3;
1811                        $co{'committer_name'} = $co{'committer'};
1812                        if ($co{'committer'} =~ m/^([^<]+) <([^>]*)>/) {
1813                                $co{'committer_name'}  = $1;
1814                                $co{'committer_email'} = $2;
1815                        } else {
1816                                $co{'committer_name'} = $co{'committer'};
1817                        }
1818                }
1819        }
1820        if (!defined $co{'tree'}) {
1821                return;
1822        };
1823        $co{'parents'} = \@parents;
1824        $co{'parent'} = $parents[0];
1825
1826        foreach my $title (@commit_lines) {
1827                $title =~ s/^    //;
1828                if ($title ne "") {
1829                        $co{'title'} = chop_str($title, 80, 5);
1830                        # remove leading stuff of merges to make the interesting part visible
1831                        if (length($title) > 50) {
1832                                $title =~ s/^Automatic //;
1833                                $title =~ s/^merge (of|with) /Merge ... /i;
1834                                if (length($title) > 50) {
1835                                        $title =~ s/(http|rsync):\/\///;
1836                                }
1837                                if (length($title) > 50) {
1838                                        $title =~ s/(master|www|rsync)\.//;
1839                                }
1840                                if (length($title) > 50) {
1841                                        $title =~ s/kernel.org:?//;
1842                                }
1843                                if (length($title) > 50) {
1844                                        $title =~ s/\/pub\/scm//;
1845                                }
1846                        }
1847                        $co{'title_short'} = chop_str($title, 50, 5);
1848                        last;
1849                }
1850        }
1851        if ($co{'title'} eq "") {
1852                $co{'title'} = $co{'title_short'} = '(no commit message)';
1853        }
1854        # remove added spaces
1855        foreach my $line (@commit_lines) {
1856                $line =~ s/^    //;
1857        }
1858        $co{'comment'} = \@commit_lines;
1859
1860        my $age = time - $co{'committer_epoch'};
1861        $co{'age'} = $age;
1862        $co{'age_string'} = age_string($age);
1863        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1864        if ($age > 60*60*24*7*2) {
1865                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1866                $co{'age_string_age'} = $co{'age_string'};
1867        } else {
1868                $co{'age_string_date'} = $co{'age_string'};
1869                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1870        }
1871        return %co;
1872}
1873
1874sub parse_commit {
1875        my ($commit_id) = @_;
1876        my %co;
1877
1878        local $/ = "\0";
1879
1880        open my $fd, "-|", git_cmd(), "rev-list",
1881                "--parents",
1882                "--header",
1883                "--max-count=1",
1884                $commit_id,
1885                "--",
1886                or die_error(undef, "Open git-rev-list failed");
1887        %co = parse_commit_text(<$fd>, 1);
1888        close $fd;
1889
1890        return %co;
1891}
1892
1893sub parse_commits {
1894        my ($commit_id, $maxcount, $skip, $arg, $filename) = @_;
1895        my @cos;
1896
1897        $maxcount ||= 1;
1898        $skip ||= 0;
1899
1900        local $/ = "\0";
1901
1902        open my $fd, "-|", git_cmd(), "rev-list",
1903                "--header",
1904                ($arg ? ($arg) : ()),
1905                ("--max-count=" . $maxcount),
1906                ("--skip=" . $skip),
1907                @extra_options,
1908                $commit_id,
1909                "--",
1910                ($filename ? ($filename) : ())
1911                or die_error(undef, "Open git-rev-list failed");
1912        while (my $line = <$fd>) {
1913                my %co = parse_commit_text($line);
1914                push @cos, \%co;
1915        }
1916        close $fd;
1917
1918        return wantarray ? @cos : \@cos;
1919}
1920
1921# parse ref from ref_file, given by ref_id, with given type
1922sub parse_ref {
1923        my $ref_file = shift;
1924        my $ref_id = shift;
1925        my $type = shift || git_get_type($ref_id);
1926        my %ref_item;
1927
1928        $ref_item{'type'} = $type;
1929        $ref_item{'id'} = $ref_id;
1930        $ref_item{'epoch'} = 0;
1931        $ref_item{'age'} = "unknown";
1932        if ($type eq "tag") {
1933                my %tag = parse_tag($ref_id);
1934                $ref_item{'comment'} = $tag{'comment'};
1935                if ($tag{'type'} eq "commit") {
1936                        my %co = parse_commit($tag{'object'});
1937                        $ref_item{'epoch'} = $co{'committer_epoch'};
1938                        $ref_item{'age'} = $co{'age_string'};
1939                } elsif (defined($tag{'epoch'})) {
1940                        my $age = time - $tag{'epoch'};
1941                        $ref_item{'epoch'} = $tag{'epoch'};
1942                        $ref_item{'age'} = age_string($age);
1943                }
1944                $ref_item{'reftype'} = $tag{'type'};
1945                $ref_item{'name'} = $tag{'name'};
1946                $ref_item{'refid'} = $tag{'object'};
1947        } elsif ($type eq "commit"){
1948                my %co = parse_commit($ref_id);
1949                $ref_item{'reftype'} = "commit";
1950                $ref_item{'name'} = $ref_file;
1951                $ref_item{'title'} = $co{'title'};
1952                $ref_item{'refid'} = $ref_id;
1953                $ref_item{'epoch'} = $co{'committer_epoch'};
1954                $ref_item{'age'} = $co{'age_string'};
1955        } else {
1956                $ref_item{'reftype'} = $type;
1957                $ref_item{'name'} = $ref_file;
1958                $ref_item{'refid'} = $ref_id;
1959        }
1960
1961        return %ref_item;
1962}
1963
1964# parse line of git-diff-tree "raw" output
1965sub parse_difftree_raw_line {
1966        my $line = shift;
1967        my %res;
1968
1969        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1970        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1971        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1972                $res{'from_mode'} = $1;
1973                $res{'to_mode'} = $2;
1974                $res{'from_id'} = $3;
1975                $res{'to_id'} = $4;
1976                $res{'status'} = $5;
1977                $res{'similarity'} = $6;
1978                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1979                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1980                } else {
1981                        $res{'file'} = unquote($7);
1982                }
1983        }
1984        # '::100755 100755 100755 60e79ca1b01bc8b057abe17ddab484699a7f5fdb 94067cc5f73388f33722d52ae02f44692bc07490 94067cc5f73388f33722d52ae02f44692bc07490 MR git-gui/git-gui.sh'
1985        # combined diff (for merge commit)
1986        elsif ($line =~ s/^(::+)((?:[0-7]{6} )+)((?:[0-9a-fA-F]{40} )+)([a-zA-Z]+)\t(.*)$//) {
1987                $res{'nparents'}  = length($1);
1988                $res{'from_mode'} = [ split(' ', $2) ];
1989                $res{'to_mode'} = pop @{$res{'from_mode'}};
1990                $res{'from_id'} = [ split(' ', $3) ];
1991                $res{'to_id'} = pop @{$res{'from_id'}};
1992                $res{'status'} = [ split('', $4) ];
1993                $res{'to_file'} = unquote($5);
1994        }
1995        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1996        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1997                $res{'commit'} = $1;
1998        }
1999
2000        return wantarray ? %res : \%res;
2001}
2002
2003# parse line of git-ls-tree output
2004sub parse_ls_tree_line ($;%) {
2005        my $line = shift;
2006        my %opts = @_;
2007        my %res;
2008
2009        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
2010        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
2011
2012        $res{'mode'} = $1;
2013        $res{'type'} = $2;
2014        $res{'hash'} = $3;
2015        if ($opts{'-z'}) {
2016                $res{'name'} = $4;
2017        } else {
2018                $res{'name'} = unquote($4);
2019        }
2020
2021        return wantarray ? %res : \%res;
2022}
2023
2024# generates _two_ hashes, references to which are passed as 2 and 3 argument
2025sub parse_from_to_diffinfo {
2026        my ($diffinfo, $from, $to, @parents) = @_;
2027
2028        if ($diffinfo->{'nparents'}) {
2029                # combined diff
2030                $from->{'file'} = [];
2031                $from->{'href'} = [];
2032                fill_from_file_info($diffinfo, @parents)
2033                        unless exists $diffinfo->{'from_file'};
2034                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
2035                        $from->{'file'}[$i] = $diffinfo->{'from_file'}[$i] || $diffinfo->{'to_file'};
2036                        if ($diffinfo->{'status'}[$i] ne "A") { # not new (added) file
2037                                $from->{'href'}[$i] = href(action=>"blob",
2038                                                           hash_base=>$parents[$i],
2039                                                           hash=>$diffinfo->{'from_id'}[$i],
2040                                                           file_name=>$from->{'file'}[$i]);
2041                        } else {
2042                                $from->{'href'}[$i] = undef;
2043                        }
2044                }
2045        } else {
2046                $from->{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
2047                if ($diffinfo->{'status'} ne "A") { # not new (added) file
2048                        $from->{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2049                                               hash=>$diffinfo->{'from_id'},
2050                                               file_name=>$from->{'file'});
2051                } else {
2052                        delete $from->{'href'};
2053                }
2054        }
2055
2056        $to->{'file'} = $diffinfo->{'to_file'} || $diffinfo->{'file'};
2057        if (!is_deleted($diffinfo)) { # file exists in result
2058                $to->{'href'} = href(action=>"blob", hash_base=>$hash,
2059                                     hash=>$diffinfo->{'to_id'},
2060                                     file_name=>$to->{'file'});
2061        } else {
2062                delete $to->{'href'};
2063        }
2064}
2065
2066## ......................................................................
2067## parse to array of hashes functions
2068
2069sub git_get_heads_list {
2070        my $limit = shift;
2071        my @headslist;
2072
2073        open my $fd, '-|', git_cmd(), 'for-each-ref',
2074                ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
2075                '--format=%(objectname) %(refname) %(subject)%00%(committer)',
2076                'refs/heads'
2077                or return;
2078        while (my $line = <$fd>) {
2079                my %ref_item;
2080
2081                chomp $line;
2082                my ($refinfo, $committerinfo) = split(/\0/, $line);
2083                my ($hash, $name, $title) = split(' ', $refinfo, 3);
2084                my ($committer, $epoch, $tz) =
2085                        ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
2086                $name =~ s!^refs/heads/!!;
2087
2088                $ref_item{'name'}  = $name;
2089                $ref_item{'id'}    = $hash;
2090                $ref_item{'title'} = $title || '(no commit message)';
2091                $ref_item{'epoch'} = $epoch;
2092                if ($epoch) {
2093                        $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
2094                } else {
2095                        $ref_item{'age'} = "unknown";
2096                }
2097
2098                push @headslist, \%ref_item;
2099        }
2100        close $fd;
2101
2102        return wantarray ? @headslist : \@headslist;
2103}
2104
2105sub git_get_tags_list {
2106        my $limit = shift;
2107        my @tagslist;
2108
2109        open my $fd, '-|', git_cmd(), 'for-each-ref',
2110                ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
2111                '--format=%(objectname) %(objecttype) %(refname) '.
2112                '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
2113                'refs/tags'
2114                or return;
2115        while (my $line = <$fd>) {
2116                my %ref_item;
2117
2118                chomp $line;
2119                my ($refinfo, $creatorinfo) = split(/\0/, $line);
2120                my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
2121                my ($creator, $epoch, $tz) =
2122                        ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
2123                $name =~ s!^refs/tags/!!;
2124
2125                $ref_item{'type'} = $type;
2126                $ref_item{'id'} = $id;
2127                $ref_item{'name'} = $name;
2128                if ($type eq "tag") {
2129                        $ref_item{'subject'} = $title;
2130                        $ref_item{'reftype'} = $reftype;
2131                        $ref_item{'refid'}   = $refid;
2132                } else {
2133                        $ref_item{'reftype'} = $type;
2134                        $ref_item{'refid'}   = $id;
2135                }
2136
2137                if ($type eq "tag" || $type eq "commit") {
2138                        $ref_item{'epoch'} = $epoch;
2139                        if ($epoch) {
2140                                $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
2141                        } else {
2142                                $ref_item{'age'} = "unknown";
2143                        }
2144                }
2145
2146                push @tagslist, \%ref_item;
2147        }
2148        close $fd;
2149
2150        return wantarray ? @tagslist : \@tagslist;
2151}
2152
2153## ----------------------------------------------------------------------
2154## filesystem-related functions
2155
2156sub get_file_owner {
2157        my $path = shift;
2158
2159        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
2160        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
2161        if (!defined $gcos) {
2162                return undef;
2163        }
2164        my $owner = $gcos;
2165        $owner =~ s/[,;].*$//;
2166        return to_utf8($owner);
2167}
2168
2169## ......................................................................
2170## mimetype related functions
2171
2172sub mimetype_guess_file {
2173        my $filename = shift;
2174        my $mimemap = shift;
2175        -r $mimemap or return undef;
2176
2177        my %mimemap;
2178        open(MIME, $mimemap) or return undef;
2179        while (<MIME>) {
2180                next if m/^#/; # skip comments
2181                my ($mime, $exts) = split(/\t+/);
2182                if (defined $exts) {
2183                        my @exts = split(/\s+/, $exts);
2184                        foreach my $ext (@exts) {
2185                                $mimemap{$ext} = $mime;
2186                        }
2187                }
2188        }
2189        close(MIME);
2190
2191        $filename =~ /\.([^.]*)$/;
2192        return $mimemap{$1};
2193}
2194
2195sub mimetype_guess {
2196        my $filename = shift;
2197        my $mime;
2198        $filename =~ /\./ or return undef;
2199
2200        if ($mimetypes_file) {
2201                my $file = $mimetypes_file;
2202                if ($file !~ m!^/!) { # if it is relative path
2203                        # it is relative to project
2204                        $file = "$projectroot/$project/$file";
2205                }
2206                $mime = mimetype_guess_file($filename, $file);
2207        }
2208        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
2209        return $mime;
2210}
2211
2212sub blob_mimetype {
2213        my $fd = shift;
2214        my $filename = shift;
2215
2216        if ($filename) {
2217                my $mime = mimetype_guess($filename);
2218                $mime and return $mime;
2219        }
2220
2221        # just in case
2222        return $default_blob_plain_mimetype unless $fd;
2223
2224        if (-T $fd) {
2225                return 'text/plain' .
2226                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
2227        } elsif (! $filename) {
2228                return 'application/octet-stream';
2229        } elsif ($filename =~ m/\.png$/i) {
2230                return 'image/png';
2231        } elsif ($filename =~ m/\.gif$/i) {
2232                return 'image/gif';
2233        } elsif ($filename =~ m/\.jpe?g$/i) {
2234                return 'image/jpeg';
2235        } else {
2236                return 'application/octet-stream';
2237        }
2238}
2239
2240## ======================================================================
2241## functions printing HTML: header, footer, error page
2242
2243sub git_header_html {
2244        my $status = shift || "200 OK";
2245        my $expires = shift;
2246
2247        my $title = "$site_name";
2248        if (defined $project) {
2249                $title .= " - " . to_utf8($project);
2250                if (defined $action) {
2251                        $title .= "/$action";
2252                        if (defined $file_name) {
2253                                $title .= " - " . esc_path($file_name);
2254                                if ($action eq "tree" && $file_name !~ m|/$|) {
2255                                        $title .= "/";
2256                                }
2257                        }
2258                }
2259        }
2260        my $content_type;
2261        # require explicit support from the UA if we are to send the page as
2262        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
2263        # we have to do this because MSIE sometimes globs '*/*', pretending to
2264        # support xhtml+xml but choking when it gets what it asked for.
2265        if (defined $cgi->http('HTTP_ACCEPT') &&
2266            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
2267            $cgi->Accept('application/xhtml+xml') != 0) {
2268                $content_type = 'application/xhtml+xml';
2269        } else {
2270                $content_type = 'text/html';
2271        }
2272        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
2273                           -status=> $status, -expires => $expires);
2274        my $mod_perl_version = $ENV{'MOD_PERL'} ? " $ENV{'MOD_PERL'}" : '';
2275        print <<EOF;
2276<?xml version="1.0" encoding="utf-8"?>
2277<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
2278<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
2279<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
2280<!-- git core binaries version $git_version -->
2281<head>
2282<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
2283<meta name="generator" content="gitweb/$version git/$git_version$mod_perl_version"/>
2284<meta name="robots" content="index, nofollow"/>
2285<title>$title</title>
2286EOF
2287# print out each stylesheet that exist
2288        if (defined $stylesheet) {
2289#provides backwards capability for those people who define style sheet in a config file
2290                print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
2291        } else {
2292                foreach my $stylesheet (@stylesheets) {
2293                        next unless $stylesheet;
2294                        print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
2295                }
2296        }
2297        if (defined $project) {
2298                printf('<link rel="alternate" title="%s log RSS feed" '.
2299                       'href="%s" type="application/rss+xml" />'."\n",
2300                       esc_param($project), href(action=>"rss"));
2301                printf('<link rel="alternate" title="%s log RSS feed (no merges)" '.
2302                       'href="%s" type="application/rss+xml" />'."\n",
2303                       esc_param($project), href(action=>"rss",
2304                                                 extra_options=>"--no-merges"));
2305                printf('<link rel="alternate" title="%s log Atom feed" '.
2306                       'href="%s" type="application/atom+xml" />'."\n",
2307                       esc_param($project), href(action=>"atom"));
2308                printf('<link rel="alternate" title="%s log Atom feed (no merges)" '.
2309                       'href="%s" type="application/atom+xml" />'."\n",
2310                       esc_param($project), href(action=>"atom",
2311                                                 extra_options=>"--no-merges"));
2312        } else {
2313                printf('<link rel="alternate" title="%s projects list" '.
2314                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
2315                       $site_name, href(project=>undef, action=>"project_index"));
2316                printf('<link rel="alternate" title="%s projects feeds" '.
2317                       'href="%s" type="text/x-opml"/>'."\n",
2318                       $site_name, href(project=>undef, action=>"opml"));
2319        }
2320        if (defined $favicon) {
2321                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
2322        }
2323
2324        print "</head>\n" .
2325              "<body>\n";
2326
2327        if (-f $site_header) {
2328                open (my $fd, $site_header);
2329                print <$fd>;
2330                close $fd;
2331        }
2332
2333        print "<div class=\"page_header\">\n" .
2334              $cgi->a({-href => esc_url($logo_url),
2335                       -title => $logo_label},
2336                      qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
2337        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
2338        if (defined $project) {
2339                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
2340                if (defined $action) {
2341                        print " / $action";
2342                }
2343                print "\n";
2344        }
2345        print "</div>\n";
2346
2347        my ($have_search) = gitweb_check_feature('search');
2348        if ((defined $project) && ($have_search)) {
2349                if (!defined $searchtext) {
2350                        $searchtext = "";
2351                }
2352                my $search_hash;
2353                if (defined $hash_base) {
2354                        $search_hash = $hash_base;
2355                } elsif (defined $hash) {
2356                        $search_hash = $hash;
2357                } else {
2358                        $search_hash = "HEAD";
2359                }
2360                my $action = $my_uri;
2361                my ($use_pathinfo) = gitweb_check_feature('pathinfo');
2362                if ($use_pathinfo) {
2363                        $action .= "/$project";
2364                } else {
2365                        $cgi->param("p", $project);
2366                }
2367                $cgi->param("a", "search");
2368                $cgi->param("h", $search_hash);
2369                print $cgi->startform(-method => "get", -action => $action) .
2370                      "<div class=\"search\">\n" .
2371                      (!$use_pathinfo && $cgi->hidden(-name => "p") . "\n") .
2372                      $cgi->hidden(-name => "a") . "\n" .
2373                      $cgi->hidden(-name => "h") . "\n" .
2374                      $cgi->popup_menu(-name => 'st', -default => 'commit',
2375                                       -values => ['commit', 'grep', 'author', 'committer', 'pickaxe']) .
2376                      $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
2377                      " search:\n",
2378                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
2379                      "</div>" .
2380                      $cgi->end_form() . "\n";
2381        }
2382}
2383
2384sub git_footer_html {
2385        print "<div class=\"page_footer\">\n";
2386        if (defined $project) {
2387                my $descr = git_get_project_description($project);
2388                if (defined $descr) {
2389                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
2390                }
2391                print $cgi->a({-href => href(action=>"rss"),
2392                              -class => "rss_logo"}, "RSS") . " ";
2393                print $cgi->a({-href => href(action=>"atom"),
2394                              -class => "rss_logo"}, "Atom") . "\n";
2395        } else {
2396                print $cgi->a({-href => href(project=>undef, action=>"opml"),
2397                              -class => "rss_logo"}, "OPML") . " ";
2398                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
2399                              -class => "rss_logo"}, "TXT") . "\n";
2400        }
2401        print "</div>\n" ;
2402
2403        if (-f $site_footer) {
2404                open (my $fd, $site_footer);
2405                print <$fd>;
2406                close $fd;
2407        }
2408
2409        print "</body>\n" .
2410              "</html>";
2411}
2412
2413sub die_error {
2414        my $status = shift || "403 Forbidden";
2415        my $error = shift || "Malformed query, file missing or permission denied";
2416
2417        git_header_html($status);
2418        print <<EOF;
2419<div class="page_body">
2420<br /><br />
2421$status - $error
2422<br />
2423</div>
2424EOF
2425        git_footer_html();
2426        exit;
2427}
2428
2429## ----------------------------------------------------------------------
2430## functions printing or outputting HTML: navigation
2431
2432sub git_print_page_nav {
2433        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
2434        $extra = '' if !defined $extra; # pager or formats
2435
2436        my @navs = qw(summary shortlog log commit commitdiff tree);
2437        if ($suppress) {
2438                @navs = grep { $_ ne $suppress } @navs;
2439        }
2440
2441        my %arg = map { $_ => {action=>$_} } @navs;
2442        if (defined $head) {
2443                for (qw(commit commitdiff)) {
2444                        $arg{$_}{'hash'} = $head;
2445                }
2446                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
2447                        for (qw(shortlog log)) {
2448                                $arg{$_}{'hash'} = $head;
2449                        }
2450                }
2451        }
2452        $arg{'tree'}{'hash'} = $treehead if defined $treehead;
2453        $arg{'tree'}{'hash_base'} = $treebase if defined $treebase;
2454
2455        print "<div class=\"page_nav\">\n" .
2456                (join " | ",
2457                 map { $_ eq $current ?
2458                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
2459                 } @navs);
2460        print "<br/>\n$extra<br/>\n" .
2461              "</div>\n";
2462}
2463
2464sub format_paging_nav {
2465        my ($action, $hash, $head, $page, $nrevs) = @_;
2466        my $paging_nav;
2467
2468
2469        if ($hash ne $head || $page) {
2470                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
2471        } else {
2472                $paging_nav .= "HEAD";
2473        }
2474
2475        if ($page > 0) {
2476                $paging_nav .= " &sdot; " .
2477                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
2478                                 -accesskey => "p", -title => "Alt-p"}, "prev");
2479        } else {
2480                $paging_nav .= " &sdot; prev";
2481        }
2482
2483        if ($nrevs >= (100 * ($page+1)-1)) {
2484                $paging_nav .= " &sdot; " .
2485                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
2486                                 -accesskey => "n", -title => "Alt-n"}, "next");
2487        } else {
2488                $paging_nav .= " &sdot; next";
2489        }
2490
2491        return $paging_nav;
2492}
2493
2494## ......................................................................
2495## functions printing or outputting HTML: div
2496
2497sub git_print_header_div {
2498        my ($action, $title, $hash, $hash_base) = @_;
2499        my %args = ();
2500
2501        $args{'action'} = $action;
2502        $args{'hash'} = $hash if $hash;
2503        $args{'hash_base'} = $hash_base if $hash_base;
2504
2505        print "<div class=\"header\">\n" .
2506              $cgi->a({-href => href(%args), -class => "title"},
2507              $title ? $title : $action) .
2508              "\n</div>\n";
2509}
2510
2511#sub git_print_authorship (\%) {
2512sub git_print_authorship {
2513        my $co = shift;
2514
2515        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
2516        print "<div class=\"author_date\">" .
2517              esc_html($co->{'author_name'}) .
2518              " [$ad{'rfc2822'}";
2519        if ($ad{'hour_local'} < 6) {
2520                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2521                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2522        } else {
2523                printf(" (%02d:%02d %s)",
2524                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2525        }
2526        print "]</div>\n";
2527}
2528
2529sub git_print_page_path {
2530        my $name = shift;
2531        my $type = shift;
2532        my $hb = shift;
2533
2534
2535        print "<div class=\"page_path\">";
2536        print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
2537                      -title => 'tree root'}, to_utf8("[$project]"));
2538        print " / ";
2539        if (defined $name) {
2540                my @dirname = split '/', $name;
2541                my $basename = pop @dirname;
2542                my $fullname = '';
2543
2544                foreach my $dir (@dirname) {
2545                        $fullname .= ($fullname ? '/' : '') . $dir;
2546                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
2547                                                     hash_base=>$hb),
2548                                      -title => $fullname}, esc_path($dir));
2549                        print " / ";
2550                }
2551                if (defined $type && $type eq 'blob') {
2552                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
2553                                                     hash_base=>$hb),
2554                                      -title => $name}, esc_path($basename));
2555                } elsif (defined $type && $type eq 'tree') {
2556                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
2557                                                     hash_base=>$hb),
2558                                      -title => $name}, esc_path($basename));
2559                        print " / ";
2560                } else {
2561                        print esc_path($basename);
2562                }
2563        }
2564        print "<br/></div>\n";
2565}
2566
2567# sub git_print_log (\@;%) {
2568sub git_print_log ($;%) {
2569        my $log = shift;
2570        my %opts = @_;
2571
2572        if ($opts{'-remove_title'}) {
2573                # remove title, i.e. first line of log
2574                shift @$log;
2575        }
2576        # remove leading empty lines
2577        while (defined $log->[0] && $log->[0] eq "") {
2578                shift @$log;
2579        }
2580
2581        # print log
2582        my $signoff = 0;
2583        my $empty = 0;
2584        foreach my $line (@$log) {
2585                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2586                        $signoff = 1;
2587                        $empty = 0;
2588                        if (! $opts{'-remove_signoff'}) {
2589                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2590                                next;
2591                        } else {
2592                                # remove signoff lines
2593                                next;
2594                        }
2595                } else {
2596                        $signoff = 0;
2597                }
2598
2599                # print only one empty line
2600                # do not print empty line after signoff
2601                if ($line eq "") {
2602                        next if ($empty || $signoff);
2603                        $empty = 1;
2604                } else {
2605                        $empty = 0;
2606                }
2607
2608                print format_log_line_html($line) . "<br/>\n";
2609        }
2610
2611        if ($opts{'-final_empty_line'}) {
2612                # end with single empty line
2613                print "<br/>\n" unless $empty;
2614        }
2615}
2616
2617# return link target (what link points to)
2618sub git_get_link_target {
2619        my $hash = shift;
2620        my $link_target;
2621
2622        # read link
2623        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2624                or return;
2625        {
2626                local $/;
2627                $link_target = <$fd>;
2628        }
2629        close $fd
2630                or return;
2631
2632        return $link_target;
2633}
2634
2635# given link target, and the directory (basedir) the link is in,
2636# return target of link relative to top directory (top tree);
2637# return undef if it is not possible (including absolute links).
2638sub normalize_link_target {
2639        my ($link_target, $basedir, $hash_base) = @_;
2640
2641        # we can normalize symlink target only if $hash_base is provided
2642        return unless $hash_base;
2643
2644        # absolute symlinks (beginning with '/') cannot be normalized
2645        return if (substr($link_target, 0, 1) eq '/');
2646
2647        # normalize link target to path from top (root) tree (dir)
2648        my $path;
2649        if ($basedir) {
2650                $path = $basedir . '/' . $link_target;
2651        } else {
2652                # we are in top (root) tree (dir)
2653                $path = $link_target;
2654        }
2655
2656        # remove //, /./, and /../
2657        my @path_parts;
2658        foreach my $part (split('/', $path)) {
2659                # discard '.' and ''
2660                next if (!$part || $part eq '.');
2661                # handle '..'
2662                if ($part eq '..') {
2663                        if (@path_parts) {
2664                                pop @path_parts;
2665                        } else {
2666                                # link leads outside repository (outside top dir)
2667                                return;
2668                        }
2669                } else {
2670                        push @path_parts, $part;
2671                }
2672        }
2673        $path = join('/', @path_parts);
2674
2675        return $path;
2676}
2677
2678# print tree entry (row of git_tree), but without encompassing <tr> element
2679sub git_print_tree_entry {
2680        my ($t, $basedir, $hash_base, $have_blame) = @_;
2681
2682        my %base_key = ();
2683        $base_key{'hash_base'} = $hash_base if defined $hash_base;
2684
2685        # The format of a table row is: mode list link.  Where mode is
2686        # the mode of the entry, list is the name of the entry, an href,
2687        # and link is the action links of the entry.
2688
2689        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
2690        if ($t->{'type'} eq "blob") {
2691                print "<td class=\"list\">" .
2692                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2693                                               file_name=>"$basedir$t->{'name'}", %base_key),
2694                                -class => "list"}, esc_path($t->{'name'}));
2695                if (S_ISLNK(oct $t->{'mode'})) {
2696                        my $link_target = git_get_link_target($t->{'hash'});
2697                        if ($link_target) {
2698                                my $norm_target = normalize_link_target($link_target, $basedir, $hash_base);
2699                                if (defined $norm_target) {
2700                                        print " -> " .
2701                                              $cgi->a({-href => href(action=>"object", hash_base=>$hash_base,
2702                                                                     file_name=>$norm_target),
2703                                                       -title => $norm_target}, esc_path($link_target));
2704                                } else {
2705                                        print " -> " . esc_path($link_target);
2706                                }
2707                        }
2708                }
2709                print "</td>\n";
2710                print "<td class=\"link\">";
2711                print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2712                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2713                              "blob");
2714                if ($have_blame) {
2715                        print " | " .
2716                              $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
2717                                                     file_name=>"$basedir$t->{'name'}", %base_key)},
2718                                      "blame");
2719                }
2720                if (defined $hash_base) {
2721                        print " | " .
2722                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2723                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
2724                                      "history");
2725                }
2726                print " | " .
2727                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
2728                                               file_name=>"$basedir$t->{'name'}")},
2729                                "raw");
2730                print "</td>\n";
2731
2732        } elsif ($t->{'type'} eq "tree") {
2733                print "<td class=\"list\">";
2734                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2735                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2736                              esc_path($t->{'name'}));
2737                print "</td>\n";
2738                print "<td class=\"link\">";
2739                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2740                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2741                              "tree");
2742                if (defined $hash_base) {
2743                        print " | " .
2744                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2745                                                     file_name=>"$basedir$t->{'name'}")},
2746                                      "history");
2747                }
2748                print "</td>\n";
2749        } else {
2750                # unknown object: we can only present history for it
2751                # (this includes 'commit' object, i.e. submodule support)
2752                print "<td class=\"list\">" .
2753                      esc_path($t->{'name'}) .
2754                      "</td>\n";
2755                print "<td class=\"link\">";
2756                if (defined $hash_base) {
2757                        print $cgi->a({-href => href(action=>"history",
2758                                                     hash_base=>$hash_base,
2759                                                     file_name=>"$basedir$t->{'name'}")},
2760                                      "history");
2761                }
2762                print "</td>\n";
2763        }
2764}
2765
2766## ......................................................................
2767## functions printing large fragments of HTML
2768
2769sub fill_from_file_info {
2770        my ($diff, @parents) = @_;
2771
2772        $diff->{'from_file'} = [ ];
2773        $diff->{'from_file'}[$diff->{'nparents'} - 1] = undef;
2774        for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
2775                if ($diff->{'status'}[$i] eq 'R' ||
2776                    $diff->{'status'}[$i] eq 'C') {
2777                        $diff->{'from_file'}[$i] =
2778                                git_get_path_by_hash($parents[$i], $diff->{'from_id'}[$i]);
2779                }
2780        }
2781
2782        return $diff;
2783}
2784
2785# parameters can be strings, or references to arrays of strings
2786sub from_ids_eq {
2787        my ($a, $b) = @_;
2788
2789        if (ref($a) eq "ARRAY" && ref($b) eq "ARRAY" && @$a == @$b) {
2790                for (my $i = 0; $i < @$a; ++$i) {
2791                        return 0 unless ($a->[$i] eq $b->[$i]);
2792                }
2793                return 1;
2794        } elsif (!ref($a) && !ref($b)) {
2795                return $a eq $b;
2796        } else {
2797                return 0;
2798        }
2799}
2800
2801sub is_deleted {
2802        my $diffinfo = shift;
2803
2804        return $diffinfo->{'to_id'} eq ('0' x 40);
2805}
2806
2807sub git_difftree_body {
2808        my ($difftree, $hash, @parents) = @_;
2809        my ($parent) = $parents[0];
2810        my ($have_blame) = gitweb_check_feature('blame');
2811        print "<div class=\"list_head\">\n";
2812        if ($#{$difftree} > 10) {
2813                print(($#{$difftree} + 1) . " files changed:\n");
2814        }
2815        print "</div>\n";
2816
2817        print "<table class=\"" .
2818              (@parents > 1 ? "combined " : "") .
2819              "diff_tree\">\n";
2820
2821        # header only for combined diff in 'commitdiff' view
2822        my $has_header = @$difftree && @parents > 1 && $action eq 'commitdiff';
2823        if ($has_header) {
2824                # table header
2825                print "<thead><tr>\n" .
2826                       "<th></th><th></th>\n"; # filename, patchN link
2827                for (my $i = 0; $i < @parents; $i++) {
2828                        my $par = $parents[$i];
2829                        print "<th>" .
2830                              $cgi->a({-href => href(action=>"commitdiff",
2831                                                     hash=>$hash, hash_parent=>$par),
2832                                       -title => 'commitdiff to parent number ' .
2833                                                  ($i+1) . ': ' . substr($par,0,7)},
2834                                      $i+1) .
2835                              "&nbsp;</th>\n";
2836                }
2837                print "</tr></thead>\n<tbody>\n";
2838        }
2839
2840        my $alternate = 1;
2841        my $patchno = 0;
2842        foreach my $line (@{$difftree}) {
2843                my $diff;
2844                if (ref($line) eq "HASH") {
2845                        # pre-parsed (or generated by hand)
2846                        $diff = $line;
2847                } else {
2848                        $diff = parse_difftree_raw_line($line);
2849                }
2850
2851                if ($alternate) {
2852                        print "<tr class=\"dark\">\n";
2853                } else {
2854                        print "<tr class=\"light\">\n";
2855                }
2856                $alternate ^= 1;
2857
2858                if (exists $diff->{'nparents'}) { # combined diff
2859
2860                        fill_from_file_info($diff, @parents)
2861                                unless exists $diff->{'from_file'};
2862
2863                        if (!is_deleted($diff)) {
2864                                # file exists in the result (child) commit
2865                                print "<td>" .
2866                                      $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2867                                                             file_name=>$diff->{'to_file'},
2868                                                             hash_base=>$hash),
2869                                              -class => "list"}, esc_path($diff->{'to_file'})) .
2870                                      "</td>\n";
2871                        } else {
2872                                print "<td>" .
2873                                      esc_path($diff->{'to_file'}) .
2874                                      "</td>\n";
2875                        }
2876
2877                        if ($action eq 'commitdiff') {
2878                                # link to patch
2879                                $patchno++;
2880                                print "<td class=\"link\">" .
2881                                      $cgi->a({-href => "#patch$patchno"}, "patch") .
2882                                      " | " .
2883                                      "</td>\n";
2884                        }
2885
2886                        my $has_history = 0;
2887                        my $not_deleted = 0;
2888                        for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
2889                                my $hash_parent = $parents[$i];
2890                                my $from_hash = $diff->{'from_id'}[$i];
2891                                my $from_path = $diff->{'from_file'}[$i];
2892                                my $status = $diff->{'status'}[$i];
2893
2894                                $has_history ||= ($status ne 'A');
2895                                $not_deleted ||= ($status ne 'D');
2896
2897                                if ($status eq 'A') {
2898                                        print "<td  class=\"link\" align=\"right\"> | </td>\n";
2899                                } elsif ($status eq 'D') {
2900                                        print "<td class=\"link\">" .
2901                                              $cgi->a({-href => href(action=>"blob",
2902                                                                     hash_base=>$hash,
2903                                                                     hash=>$from_hash,
2904                                                                     file_name=>$from_path)},
2905                                                      "blob" . ($i+1)) .
2906                                              " | </td>\n";
2907                                } else {
2908                                        if ($diff->{'to_id'} eq $from_hash) {
2909                                                print "<td class=\"link nochange\">";
2910                                        } else {
2911                                                print "<td class=\"link\">";
2912                                        }
2913                                        print $cgi->a({-href => href(action=>"blobdiff",
2914                                                                     hash=>$diff->{'to_id'},
2915                                                                     hash_parent=>$from_hash,
2916                                                                     hash_base=>$hash,
2917                                                                     hash_parent_base=>$hash_parent,
2918                                                                     file_name=>$diff->{'to_file'},
2919                                                                     file_parent=>$from_path)},
2920                                                      "diff" . ($i+1)) .
2921                                              " | </td>\n";
2922                                }
2923                        }
2924
2925                        print "<td class=\"link\">";
2926                        if ($not_deleted) {
2927                                print $cgi->a({-href => href(action=>"blob",
2928                                                             hash=>$diff->{'to_id'},
2929                                                             file_name=>$diff->{'to_file'},
2930                                                             hash_base=>$hash)},
2931                                              "blob");
2932                                print " | " if ($has_history);
2933                        }
2934                        if ($has_history) {
2935                                print $cgi->a({-href => href(action=>"history",
2936                                                             file_name=>$diff->{'to_file'},
2937                                                             hash_base=>$hash)},
2938                                              "history");
2939                        }
2940                        print "</td>\n";
2941
2942                        print "</tr>\n";
2943                        next; # instead of 'else' clause, to avoid extra indent
2944                }
2945                # else ordinary diff
2946
2947                my ($to_mode_oct, $to_mode_str, $to_file_type);
2948                my ($from_mode_oct, $from_mode_str, $from_file_type);
2949                if ($diff->{'to_mode'} ne ('0' x 6)) {
2950                        $to_mode_oct = oct $diff->{'to_mode'};
2951                        if (S_ISREG($to_mode_oct)) { # only for regular file
2952                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
2953                        }
2954                        $to_file_type = file_type($diff->{'to_mode'});
2955                }
2956                if ($diff->{'from_mode'} ne ('0' x 6)) {
2957                        $from_mode_oct = oct $diff->{'from_mode'};
2958                        if (S_ISREG($to_mode_oct)) { # only for regular file
2959                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
2960                        }
2961                        $from_file_type = file_type($diff->{'from_mode'});
2962                }
2963
2964                if ($diff->{'status'} eq "A") { # created
2965                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
2966                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
2967                        $mode_chng   .= "]</span>";
2968                        print "<td>";
2969                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2970                                                     hash_base=>$hash, file_name=>$diff->{'file'}),
2971                                      -class => "list"}, esc_path($diff->{'file'}));
2972                        print "</td>\n";
2973                        print "<td>$mode_chng</td>\n";
2974                        print "<td class=\"link\">";
2975                        if ($action eq 'commitdiff') {
2976                                # link to patch
2977                                $patchno++;
2978                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2979                                print " | ";
2980                        }
2981                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2982                                                     hash_base=>$hash, file_name=>$diff->{'file'})},
2983                                      "blob");
2984                        print "</td>\n";
2985
2986                } elsif ($diff->{'status'} eq "D") { # deleted
2987                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
2988                        print "<td>";
2989                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
2990                                                     hash_base=>$parent, file_name=>$diff->{'file'}),
2991                                       -class => "list"}, esc_path($diff->{'file'}));
2992                        print "</td>\n";
2993                        print "<td>$mode_chng</td>\n";
2994                        print "<td class=\"link\">";
2995                        if ($action eq 'commitdiff') {
2996                                # link to patch
2997                                $patchno++;
2998                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2999                                print " | ";
3000                        }
3001                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
3002                                                     hash_base=>$parent, file_name=>$diff->{'file'})},
3003                                      "blob") . " | ";
3004                        if ($have_blame) {
3005                                print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
3006                                                             file_name=>$diff->{'file'})},
3007                                              "blame") . " | ";
3008                        }
3009                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
3010                                                     file_name=>$diff->{'file'})},
3011                                      "history");
3012                        print "</td>\n";
3013
3014                } elsif ($diff->{'status'} eq "M" || $diff->{'status'} eq "T") { # modified, or type changed
3015                        my $mode_chnge = "";
3016                        if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
3017                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
3018                                if ($from_file_type ne $to_file_type) {
3019                                        $mode_chnge .= " from $from_file_type to $to_file_type";
3020                                }
3021                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
3022                                        if ($from_mode_str && $to_mode_str) {
3023                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
3024                                        } elsif ($to_mode_str) {
3025                                                $mode_chnge .= " mode: $to_mode_str";
3026                                        }
3027                                }
3028                                $mode_chnge .= "]</span>\n";
3029                        }
3030                        print "<td>";
3031                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3032                                                     hash_base=>$hash, file_name=>$diff->{'file'}),
3033                                      -class => "list"}, esc_path($diff->{'file'}));
3034                        print "</td>\n";
3035                        print "<td>$mode_chnge</td>\n";
3036                        print "<td class=\"link\">";
3037                        if ($action eq 'commitdiff') {
3038                                # link to patch
3039                                $patchno++;
3040                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
3041                                      " | ";
3042                        } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
3043                                # "commit" view and modified file (not onlu mode changed)
3044                                print $cgi->a({-href => href(action=>"blobdiff",
3045                                                             hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
3046                                                             hash_base=>$hash, hash_parent_base=>$parent,
3047                                                             file_name=>$diff->{'file'})},
3048                                              "diff") .
3049                                      " | ";
3050                        }
3051                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3052                                                     hash_base=>$hash, file_name=>$diff->{'file'})},
3053                                       "blob") . " | ";
3054                        if ($have_blame) {
3055                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
3056                                                             file_name=>$diff->{'file'})},
3057                                              "blame") . " | ";
3058                        }
3059                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
3060                                                     file_name=>$diff->{'file'})},
3061                                      "history");
3062                        print "</td>\n";
3063
3064                } elsif ($diff->{'status'} eq "R" || $diff->{'status'} eq "C") { # renamed or copied
3065                        my %status_name = ('R' => 'moved', 'C' => 'copied');
3066                        my $nstatus = $status_name{$diff->{'status'}};
3067                        my $mode_chng = "";
3068                        if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
3069                                # mode also for directories, so we cannot use $to_mode_str
3070                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
3071                        }
3072                        print "<td>" .
3073                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
3074                                                     hash=>$diff->{'to_id'}, file_name=>$diff->{'to_file'}),
3075                                      -class => "list"}, esc_path($diff->{'to_file'})) . "</td>\n" .
3076                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
3077                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
3078                                                     hash=>$diff->{'from_id'}, file_name=>$diff->{'from_file'}),
3079                                      -class => "list"}, esc_path($diff->{'from_file'})) .
3080                              " with " . (int $diff->{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
3081                              "<td class=\"link\">";
3082                        if ($action eq 'commitdiff') {
3083                                # link to patch
3084                                $patchno++;
3085                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
3086                                      " | ";
3087                        } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
3088                                # "commit" view and modified file (not only pure rename or copy)
3089                                print $cgi->a({-href => href(action=>"blobdiff",
3090                                                             hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
3091                                                             hash_base=>$hash, hash_parent_base=>$parent,
3092                                                             file_name=>$diff->{'to_file'}, file_parent=>$diff->{'from_file'})},
3093                                              "diff") .
3094                                      " | ";
3095                        }
3096                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3097                                                     hash_base=>$parent, file_name=>$diff->{'to_file'})},
3098                                      "blob") . " | ";
3099                        if ($have_blame) {
3100                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
3101                                                             file_name=>$diff->{'to_file'})},
3102                                              "blame") . " | ";
3103                        }
3104                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
3105                                                    file_name=>$diff->{'to_file'})},
3106                                      "history");
3107                        print "</td>\n";
3108
3109                } # we should not encounter Unmerged (U) or Unknown (X) status
3110                print "</tr>\n";
3111        }
3112        print "</tbody>" if $has_header;
3113        print "</table>\n";
3114}
3115
3116sub git_patchset_body {
3117        my ($fd, $difftree, $hash, @hash_parents) = @_;
3118        my ($hash_parent) = $hash_parents[0];
3119
3120        my $patch_idx = 0;
3121        my $patch_number = 0;
3122        my $patch_line;
3123        my $diffinfo;
3124        my (%from, %to);
3125
3126        print "<div class=\"patchset\">\n";
3127
3128        # skip to first patch
3129        while ($patch_line = <$fd>) {
3130                chomp $patch_line;
3131
3132                last if ($patch_line =~ m/^diff /);
3133        }
3134
3135 PATCH:
3136        while ($patch_line) {
3137                my @diff_header;
3138                my ($from_id, $to_id);
3139
3140                # git diff header
3141                #assert($patch_line =~ m/^diff /) if DEBUG;
3142                #assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
3143                $patch_number++;
3144                push @diff_header, $patch_line;
3145
3146                # extended diff header
3147        EXTENDED_HEADER:
3148                while ($patch_line = <$fd>) {
3149                        chomp $patch_line;
3150
3151                        last EXTENDED_HEADER if ($patch_line =~ m/^--- |^diff /);
3152
3153                        if ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
3154                                $from_id = $1;
3155                                $to_id   = $2;
3156                        } elsif ($patch_line =~ m/^index ((?:[0-9a-fA-F]{40},)+[0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
3157                                $from_id = [ split(',', $1) ];
3158                                $to_id   = $2;
3159                        }
3160
3161                        push @diff_header, $patch_line;
3162                }
3163                my $last_patch_line = $patch_line;
3164
3165                # check if current patch belong to current raw line
3166                # and parse raw git-diff line if needed
3167                if (defined $diffinfo &&
3168                    defined $from_id && defined $to_id &&
3169                    from_ids_eq($diffinfo->{'from_id'}, $from_id) &&
3170                    $diffinfo->{'to_id'} eq $to_id) {
3171                        # this is continuation of a split patch
3172                        print "<div class=\"patch cont\">\n";
3173                } else {
3174                        # advance raw git-diff output if needed
3175                        $patch_idx++ if defined $diffinfo;
3176
3177                        # compact combined diff output can have some patches skipped
3178                        # find which patch (using pathname of result) we are at now
3179                        my $to_name;
3180                        if ($diff_header[0] =~ m!^diff --cc "?(.*)"?$!) {
3181                                $to_name = $1;
3182                        }
3183
3184                        do {
3185                                # read and prepare patch information
3186                                if (ref($difftree->[$patch_idx]) eq "HASH") {
3187                                        # pre-parsed (or generated by hand)
3188                                        $diffinfo = $difftree->[$patch_idx];
3189                                } else {
3190                                        $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
3191                                }
3192
3193                                # check if current raw line has no patch (it got simplified)
3194                                if (defined $to_name && $to_name ne $diffinfo->{'to_file'}) {
3195                                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n" .
3196                                              format_diff_cc_simplified($diffinfo, @hash_parents) .
3197                                              "</div>\n";  # class="patch"
3198
3199                                        $patch_idx++;
3200                                        $patch_number++;
3201                                }
3202                        } until (!defined $to_name || $to_name eq $diffinfo->{'to_file'} ||
3203                                 $patch_idx > $#$difftree);
3204
3205                        # modifies %from, %to hashes
3206                        parse_from_to_diffinfo($diffinfo, \%from, \%to, @hash_parents);
3207
3208                        # this is first patch for raw difftree line with $patch_idx index
3209                        # we index @$difftree array from 0, but number patches from 1
3210                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
3211                }
3212
3213                # print "git diff" header
3214                $patch_line = shift @diff_header;
3215                print format_git_diff_header_line($patch_line, $diffinfo,
3216                                                  \%from, \%to);
3217
3218                # print extended diff header
3219                print "<div class=\"diff extended_header\">\n" if (@diff_header > 0);
3220        EXTENDED_HEADER:
3221                foreach $patch_line (@diff_header) {
3222                        print format_extended_diff_header_line($patch_line, $diffinfo,
3223                                                               \%from, \%to);
3224                }
3225                print "</div>\n"  if (@diff_header > 0); # class="diff extended_header"
3226
3227                # from-file/to-file diff header
3228                $patch_line = $last_patch_line;
3229                if (! $patch_line) {
3230                        print "</div>\n"; # class="patch"
3231                        last PATCH;
3232                }
3233                next PATCH if ($patch_line =~ m/^diff /);
3234                #assert($patch_line =~ m/^---/) if DEBUG;
3235                #assert($patch_line eq $last_patch_line) if DEBUG;
3236
3237                $patch_line = <$fd>;
3238                chomp $patch_line;
3239                #assert($patch_line =~ m/^\+\+\+/) if DEBUG;
3240
3241                print format_diff_from_to_header($last_patch_line, $patch_line,
3242                                                 $diffinfo, \%from, \%to,
3243                                                 @hash_parents);
3244
3245                # the patch itself
3246        LINE:
3247                while ($patch_line = <$fd>) {
3248                        chomp $patch_line;
3249
3250                        next PATCH if ($patch_line =~ m/^diff /);
3251
3252                        print format_diff_line($patch_line, \%from, \%to);
3253                }
3254
3255        } continue {
3256                print "</div>\n"; # class="patch"
3257        }
3258
3259        # for compact combined (--cc) format, with chunk and patch simpliciaction
3260        # patchset might be empty, but there might be unprocessed raw lines
3261        for ($patch_idx++ if $patch_number > 0;
3262             $patch_idx < @$difftree;
3263             $patch_idx++) {
3264                # read and prepare patch information
3265                if (ref($difftree->[$patch_idx]) eq "HASH") {
3266                        # pre-parsed (or generated by hand)
3267                        $diffinfo = $difftree->[$patch_idx];
3268                } else {
3269                        $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
3270                }
3271
3272                # generate anchor for "patch" links in difftree / whatchanged part
3273                print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n" .
3274                      format_diff_cc_simplified($diffinfo, @hash_parents) .
3275                      "</div>\n";  # class="patch"
3276
3277                $patch_number++;
3278        }
3279
3280        if ($patch_number == 0) {
3281                if (@hash_parents > 1) {
3282                        print "<div class=\"diff nodifferences\">Trivial merge</div>\n";
3283                } else {
3284                        print "<div class=\"diff nodifferences\">No differences found</div>\n";
3285                }
3286        }
3287
3288        print "</div>\n"; # class="patchset"
3289}
3290
3291# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3292
3293sub git_project_list_body {
3294        my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
3295
3296        my ($check_forks) = gitweb_check_feature('forks');
3297
3298        my @projects;
3299        foreach my $pr (@$projlist) {
3300                my (@aa) = git_get_last_activity($pr->{'path'});
3301                unless (@aa) {
3302                        next;
3303                }
3304                ($pr->{'age'}, $pr->{'age_string'}) = @aa;
3305                if (!defined $pr->{'descr'}) {
3306                        my $descr = git_get_project_description($pr->{'path'}) || "";
3307                        $pr->{'descr_long'} = to_utf8($descr);
3308                        $pr->{'descr'} = chop_str($descr, $projects_list_description_width, 5);
3309                }
3310                if (!defined $pr->{'owner'}) {
3311                        $pr->{'owner'} = git_get_project_owner("$pr->{'path'}") || "";
3312                }
3313                if ($check_forks) {
3314                        my $pname = $pr->{'path'};
3315                        if (($pname =~ s/\.git$//) &&
3316                            ($pname !~ /\/$/) &&
3317                            (-d "$projectroot/$pname")) {
3318                                $pr->{'forks'} = "-d $projectroot/$pname";
3319                        }
3320                        else {
3321                                $pr->{'forks'} = 0;
3322                        }
3323                }
3324                push @projects, $pr;
3325        }
3326
3327        $order ||= $default_projects_order;
3328        $from = 0 unless defined $from;
3329        $to = $#projects if (!defined $to || $#projects < $to);
3330
3331        print "<table class=\"project_list\">\n";
3332        unless ($no_header) {
3333                print "<tr>\n";
3334                if ($check_forks) {
3335                        print "<th></th>\n";
3336                }
3337                if ($order eq "project") {
3338                        @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
3339                        print "<th>Project</th>\n";
3340                } else {
3341                        print "<th>" .
3342                              $cgi->a({-href => href(project=>undef, order=>'project'),
3343                                       -class => "header"}, "Project") .
3344                              "</th>\n";
3345                }
3346                if ($order eq "descr") {
3347                        @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
3348                        print "<th>Description</th>\n";
3349                } else {
3350                        print "<th>" .
3351                              $cgi->a({-href => href(project=>undef, order=>'descr'),
3352                                       -class => "header"}, "Description") .
3353                              "</th>\n";
3354                }
3355                if ($order eq "owner") {
3356                        @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
3357                        print "<th>Owner</th>\n";
3358                } else {
3359                        print "<th>" .
3360                              $cgi->a({-href => href(project=>undef, order=>'owner'),
3361                                       -class => "header"}, "Owner") .
3362                              "</th>\n";
3363                }
3364                if ($order eq "age") {
3365                        @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
3366                        print "<th>Last Change</th>\n";
3367                } else {
3368                        print "<th>" .
3369                              $cgi->a({-href => href(project=>undef, order=>'age'),
3370                                       -class => "header"}, "Last Change") .
3371                              "</th>\n";
3372                }
3373                print "<th></th>\n" .
3374                      "</tr>\n";
3375        }
3376        my $alternate = 1;
3377        for (my $i = $from; $i <= $to; $i++) {
3378                my $pr = $projects[$i];
3379                if ($alternate) {
3380                        print "<tr class=\"dark\">\n";
3381                } else {
3382                        print "<tr class=\"light\">\n";
3383                }
3384                $alternate ^= 1;
3385                if ($check_forks) {
3386                        print "<td>";
3387                        if ($pr->{'forks'}) {
3388                                print "<!-- $pr->{'forks'} -->\n";
3389                                print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
3390                        }
3391                        print "</td>\n";
3392                }
3393                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
3394                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
3395                      "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
3396                                        -class => "list", -title => $pr->{'descr_long'}},
3397                                        esc_html($pr->{'descr'})) . "</td>\n" .
3398                      "<td><i>" . esc_html(chop_str($pr->{'owner'}, 15)) . "</i></td>\n";
3399                print "<td class=\"". age_class($pr->{'age'}) . "\">" .
3400                      (defined $pr->{'age_string'} ? $pr->{'age_string'} : "No commits") . "</td>\n" .
3401                      "<td class=\"link\">" .
3402                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
3403                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
3404                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
3405                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
3406                      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
3407                      "</td>\n" .
3408                      "</tr>\n";
3409        }
3410        if (defined $extra) {
3411                print "<tr>\n";
3412                if ($check_forks) {
3413                        print "<td></td>\n";
3414                }
3415                print "<td colspan=\"5\">$extra</td>\n" .
3416                      "</tr>\n";
3417        }
3418        print "</table>\n";
3419}
3420
3421sub git_shortlog_body {
3422        # uses global variable $project
3423        my ($commitlist, $from, $to, $refs, $extra) = @_;
3424
3425        $from = 0 unless defined $from;
3426        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
3427
3428        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
3429        my $alternate = 1;
3430        for (my $i = $from; $i <= $to; $i++) {
3431                my %co = %{$commitlist->[$i]};
3432                my $commit = $co{'id'};
3433                my $ref = format_ref_marker($refs, $commit);
3434                if ($alternate) {
3435                        print "<tr class=\"dark\">\n";
3436                } else {
3437                        print "<tr class=\"light\">\n";
3438                }
3439                $alternate ^= 1;
3440                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
3441                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3442                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
3443                      "<td>";
3444                print format_subject_html($co{'title'}, $co{'title_short'},
3445                                          href(action=>"commit", hash=>$commit), $ref);
3446                print "</td>\n" .
3447                      "<td class=\"link\">" .
3448                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
3449                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
3450                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
3451                my $snapshot_links = format_snapshot_links($commit);
3452                if (defined $snapshot_links) {
3453                        print " | " . $snapshot_links;
3454                }
3455                print "</td>\n" .
3456                      "</tr>\n";
3457        }
3458        if (defined $extra) {
3459                print "<tr>\n" .
3460                      "<td colspan=\"4\">$extra</td>\n" .
3461                      "</tr>\n";
3462        }
3463        print "</table>\n";
3464}
3465
3466sub git_history_body {
3467        # Warning: assumes constant type (blob or tree) during history
3468        my ($commitlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
3469
3470        $from = 0 unless defined $from;
3471        $to = $#{$commitlist} unless (defined $to && $to <= $#{$commitlist});
3472
3473        print "<table class=\"history\" cellspacing=\"0\">\n";
3474        my $alternate = 1;
3475        for (my $i = $from; $i <= $to; $i++) {
3476                my %co = %{$commitlist->[$i]};
3477                if (!%co) {
3478                        next;
3479                }
3480                my $commit = $co{'id'};
3481
3482                my $ref = format_ref_marker($refs, $commit);
3483
3484                if ($alternate) {
3485                        print "<tr class=\"dark\">\n";
3486                } else {
3487                        print "<tr class=\"light\">\n";
3488                }
3489                $alternate ^= 1;
3490                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3491                      # shortlog uses      chop_str($co{'author_name'}, 10)
3492                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
3493                      "<td>";
3494                # originally git_history used chop_str($co{'title'}, 50)
3495                print format_subject_html($co{'title'}, $co{'title_short'},
3496                                          href(action=>"commit", hash=>$commit), $ref);
3497                print "</td>\n" .
3498                      "<td class=\"link\">" .
3499                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
3500                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
3501
3502                if ($ftype eq 'blob') {
3503                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
3504                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
3505                        if (defined $blob_current && defined $blob_parent &&
3506                                        $blob_current ne $blob_parent) {
3507                                print " | " .
3508                                        $cgi->a({-href => href(action=>"blobdiff",
3509                                                               hash=>$blob_current, hash_parent=>$blob_parent,
3510                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
3511                                                               file_name=>$file_name)},
3512                                                "diff to current");
3513                        }
3514                }
3515                print "</td>\n" .
3516                      "</tr>\n";
3517        }
3518        if (defined $extra) {
3519                print "<tr>\n" .
3520                      "<td colspan=\"4\">$extra</td>\n" .
3521                      "</tr>\n";
3522        }
3523        print "</table>\n";
3524}
3525
3526sub git_tags_body {
3527        # uses global variable $project
3528        my ($taglist, $from, $to, $extra) = @_;
3529        $from = 0 unless defined $from;
3530        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
3531
3532        print "<table class=\"tags\" cellspacing=\"0\">\n";
3533        my $alternate = 1;
3534        for (my $i = $from; $i <= $to; $i++) {
3535                my $entry = $taglist->[$i];
3536                my %tag = %$entry;
3537                my $comment = $tag{'subject'};
3538                my $comment_short;
3539                if (defined $comment) {
3540                        $comment_short = chop_str($comment, 30, 5);
3541                }
3542                if ($alternate) {
3543                        print "<tr class=\"dark\">\n";
3544                } else {
3545                        print "<tr class=\"light\">\n";
3546                }
3547                $alternate ^= 1;
3548                if (defined $tag{'age'}) {
3549                        print "<td><i>$tag{'age'}</i></td>\n";
3550                } else {
3551                        print "<td></td>\n";
3552                }
3553                print "<td>" .
3554                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
3555                               -class => "list name"}, esc_html($tag{'name'})) .
3556                      "</td>\n" .
3557                      "<td>";
3558                if (defined $comment) {
3559                        print format_subject_html($comment, $comment_short,
3560                                                  href(action=>"tag", hash=>$tag{'id'}));
3561                }
3562                print "</td>\n" .
3563                      "<td class=\"selflink\">";
3564                if ($tag{'type'} eq "tag") {
3565                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
3566                } else {
3567                        print "&nbsp;";
3568                }
3569                print "</td>\n" .
3570                      "<td class=\"link\">" . " | " .
3571                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
3572                if ($tag{'reftype'} eq "commit") {
3573                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
3574                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
3575                } elsif ($tag{'reftype'} eq "blob") {
3576                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
3577                }
3578                print "</td>\n" .
3579                      "</tr>";
3580        }
3581        if (defined $extra) {
3582                print "<tr>\n" .
3583                      "<td colspan=\"5\">$extra</td>\n" .
3584                      "</tr>\n";
3585        }
3586        print "</table>\n";
3587}
3588
3589sub git_heads_body {
3590        # uses global variable $project
3591        my ($headlist, $head, $from, $to, $extra) = @_;
3592        $from = 0 unless defined $from;
3593        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
3594
3595        print "<table class=\"heads\" cellspacing=\"0\">\n";
3596        my $alternate = 1;
3597        for (my $i = $from; $i <= $to; $i++) {
3598                my $entry = $headlist->[$i];
3599                my %ref = %$entry;
3600                my $curr = $ref{'id'} eq $head;
3601                if ($alternate) {
3602                        print "<tr class=\"dark\">\n";
3603                } else {
3604                        print "<tr class=\"light\">\n";
3605                }
3606                $alternate ^= 1;
3607                print "<td><i>$ref{'age'}</i></td>\n" .
3608                      ($curr ? "<td class=\"current_head\">" : "<td>") .
3609                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
3610                               -class => "list name"},esc_html($ref{'name'})) .
3611                      "</td>\n" .
3612                      "<td class=\"link\">" .
3613                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
3614                      $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
3615                      $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
3616                      "</td>\n" .
3617                      "</tr>";
3618        }
3619        if (defined $extra) {
3620                print "<tr>\n" .
3621                      "<td colspan=\"3\">$extra</td>\n" .
3622                      "</tr>\n";
3623        }
3624        print "</table>\n";
3625}
3626
3627sub git_search_grep_body {
3628        my ($commitlist, $from, $to, $extra) = @_;
3629        $from = 0 unless defined $from;
3630        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
3631
3632        print "<table class=\"grep\" cellspacing=\"0\">\n";
3633        my $alternate = 1;
3634        for (my $i = $from; $i <= $to; $i++) {
3635                my %co = %{$commitlist->[$i]};
3636                if (!%co) {
3637                        next;
3638                }
3639                my $commit = $co{'id'};
3640                if ($alternate) {
3641                        print "<tr class=\"dark\">\n";
3642                } else {
3643                        print "<tr class=\"light\">\n";
3644                }
3645                $alternate ^= 1;
3646                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3647                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3648                      "<td>" .
3649                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3650                               esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3651                my $comment = $co{'comment'};
3652                foreach my $line (@$comment) {
3653                        if ($line =~ m/^(.*)($search_regexp)(.*)$/i) {
3654                                my $lead = esc_html($1) || "";
3655                                $lead = chop_str($lead, 30, 10);
3656                                my $match = esc_html($2) || "";
3657                                my $trail = esc_html($3) || "";
3658                                $trail = chop_str($trail, 30, 10);
3659                                my $text = "$lead<span class=\"match\">$match</span>$trail";
3660                                print chop_str($text, 80, 5) . "<br/>\n";
3661                        }
3662                }
3663                print "</td>\n" .
3664                      "<td class=\"link\">" .
3665                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3666                      " | " .
3667                      $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3668                print "</td>\n" .
3669                      "</tr>\n";
3670        }
3671        if (defined $extra) {
3672                print "<tr>\n" .
3673                      "<td colspan=\"3\">$extra</td>\n" .
3674                      "</tr>\n";
3675        }
3676        print "</table>\n";
3677}
3678
3679## ======================================================================
3680## ======================================================================
3681## actions
3682
3683sub git_project_list {
3684        my $order = $cgi->param('o');
3685        if (defined $order && $order !~ m/none|project|descr|owner|age/) {
3686                die_error(undef, "Unknown order parameter");
3687        }
3688
3689        my @list = git_get_projects_list();
3690        if (!@list) {
3691                die_error(undef, "No projects found");
3692        }
3693
3694        git_header_html();
3695        if (-f $home_text) {
3696                print "<div class=\"index_include\">\n";
3697                open (my $fd, $home_text);
3698                print <$fd>;
3699                close $fd;
3700                print "</div>\n";
3701        }
3702        git_project_list_body(\@list, $order);
3703        git_footer_html();
3704}
3705
3706sub git_forks {
3707        my $order = $cgi->param('o');
3708        if (defined $order && $order !~ m/none|project|descr|owner|age/) {
3709                die_error(undef, "Unknown order parameter");
3710        }
3711
3712        my @list = git_get_projects_list($project);
3713        if (!@list) {
3714                die_error(undef, "No forks found");
3715        }
3716
3717        git_header_html();
3718        git_print_page_nav('','');
3719        git_print_header_div('summary', "$project forks");
3720        git_project_list_body(\@list, $order);
3721        git_footer_html();
3722}
3723
3724sub git_project_index {
3725        my @projects = git_get_projects_list($project);
3726
3727        print $cgi->header(
3728                -type => 'text/plain',
3729                -charset => 'utf-8',
3730                -content_disposition => 'inline; filename="index.aux"');
3731
3732        foreach my $pr (@projects) {
3733                if (!exists $pr->{'owner'}) {
3734                        $pr->{'owner'} = git_get_project_owner("$pr->{'path'}");
3735                }
3736
3737                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
3738                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
3739                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3740                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3741                $path  =~ s/ /\+/g;
3742                $owner =~ s/ /\+/g;
3743
3744                print "$path $owner\n";
3745        }
3746}
3747
3748sub git_summary {
3749        my $descr = git_get_project_description($project) || "none";
3750        my %co = parse_commit("HEAD");
3751        my %cd = %co ? parse_date($co{'committer_epoch'}, $co{'committer_tz'}) : ();
3752        my $head = $co{'id'};
3753
3754        my $owner = git_get_project_owner($project);
3755
3756        my $refs = git_get_references();
3757        # These get_*_list functions return one more to allow us to see if
3758        # there are more ...
3759        my @taglist  = git_get_tags_list(16);
3760        my @headlist = git_get_heads_list(16);
3761        my @forklist;
3762        my ($check_forks) = gitweb_check_feature('forks');
3763
3764        if ($check_forks) {
3765                @forklist = git_get_projects_list($project);
3766        }
3767
3768        git_header_html();
3769        git_print_page_nav('summary','', $head);
3770
3771        print "<div class=\"title\">&nbsp;</div>\n";
3772        print "<table cellspacing=\"0\">\n" .
3773              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
3774              "<tr><td>owner</td><td>" . esc_html($owner) . "</td></tr>\n";
3775        if (defined $cd{'rfc2822'}) {
3776                print "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
3777        }
3778
3779        # use per project git URL list in $projectroot/$project/cloneurl
3780        # or make project git URL from git base URL and project name
3781        my $url_tag = "URL";
3782        my @url_list = git_get_project_url_list($project);
3783        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
3784        foreach my $git_url (@url_list) {
3785                next unless $git_url;
3786                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
3787                $url_tag = "";
3788        }
3789        print "</table>\n";
3790
3791        if (-s "$projectroot/$project/README.html") {
3792                if (open my $fd, "$projectroot/$project/README.html") {
3793                        print "<div class=\"title\">readme</div>\n";
3794                        print $_ while (<$fd>);
3795                        close $fd;
3796                }
3797        }
3798
3799        # we need to request one more than 16 (0..15) to check if
3800        # those 16 are all
3801        my @commitlist = $head ? parse_commits($head, 17) : ();
3802        if (@commitlist) {
3803                git_print_header_div('shortlog');
3804                git_shortlog_body(\@commitlist, 0, 15, $refs,
3805                                  $#commitlist <=  15 ? undef :
3806                                  $cgi->a({-href => href(action=>"shortlog")}, "..."));
3807        }
3808
3809        if (@taglist) {
3810                git_print_header_div('tags');
3811                git_tags_body(\@taglist, 0, 15,
3812                              $#taglist <=  15 ? undef :
3813                              $cgi->a({-href => href(action=>"tags")}, "..."));
3814        }
3815
3816        if (@headlist) {
3817                git_print_header_div('heads');
3818                git_heads_body(\@headlist, $head, 0, 15,
3819                               $#headlist <= 15 ? undef :
3820                               $cgi->a({-href => href(action=>"heads")}, "..."));
3821        }
3822
3823        if (@forklist) {
3824                git_print_header_div('forks');
3825                git_project_list_body(\@forklist, undef, 0, 15,
3826                                      $#forklist <= 15 ? undef :
3827                                      $cgi->a({-href => href(action=>"forks")}, "..."),
3828                                      'noheader');
3829        }
3830
3831        git_footer_html();
3832}
3833
3834sub git_tag {
3835        my $head = git_get_head_hash($project);
3836        git_header_html();
3837        git_print_page_nav('','', $head,undef,$head);
3838        my %tag = parse_tag($hash);
3839
3840        if (! %tag) {
3841                die_error(undef, "Unknown tag object");
3842        }
3843
3844        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
3845        print "<div class=\"title_text\">\n" .
3846              "<table cellspacing=\"0\">\n" .
3847              "<tr>\n" .
3848              "<td>object</td>\n" .
3849              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3850                               $tag{'object'}) . "</td>\n" .
3851              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3852                                              $tag{'type'}) . "</td>\n" .
3853              "</tr>\n";
3854        if (defined($tag{'author'})) {
3855                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
3856                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
3857                print "<tr><td></td><td>" . $ad{'rfc2822'} .
3858                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
3859                        "</td></tr>\n";
3860        }
3861        print "</table>\n\n" .
3862              "</div>\n";
3863        print "<div class=\"page_body\">";
3864        my $comment = $tag{'comment'};
3865        foreach my $line (@$comment) {
3866                chomp $line;
3867                print esc_html($line, -nbsp=>1) . "<br/>\n";
3868        }
3869        print "</div>\n";
3870        git_footer_html();
3871}
3872
3873sub git_blame2 {
3874        my $fd;
3875        my $ftype;
3876
3877        my ($have_blame) = gitweb_check_feature('blame');
3878        if (!$have_blame) {
3879                die_error('403 Permission denied', "Permission denied");
3880        }
3881        die_error('404 Not Found', "File name not defined") if (!$file_name);
3882        $hash_base ||= git_get_head_hash($project);
3883        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3884        my %co = parse_commit($hash_base)
3885                or die_error(undef, "Reading commit failed");
3886        if (!defined $hash) {
3887                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3888                        or die_error(undef, "Error looking up file");
3889        }
3890        $ftype = git_get_type($hash);
3891        if ($ftype !~ "blob") {
3892                die_error('400 Bad Request', "Object is not a blob");
3893        }
3894        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
3895              $file_name, $hash_base)
3896                or die_error(undef, "Open git-blame failed");
3897        git_header_html();
3898        my $formats_nav =
3899                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3900                        "blob") .
3901                " | " .
3902                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3903                        "history") .
3904                " | " .
3905                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3906                        "HEAD");
3907        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3908        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3909        git_print_page_path($file_name, $ftype, $hash_base);
3910        my @rev_color = (qw(light2 dark2));
3911        my $num_colors = scalar(@rev_color);
3912        my $current_color = 0;
3913        my $last_rev;
3914        print <<HTML;
3915<div class="page_body">
3916<table class="blame">
3917<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
3918HTML
3919        my %metainfo = ();
3920        while (1) {
3921                $_ = <$fd>;
3922                last unless defined $_;
3923                my ($full_rev, $orig_lineno, $lineno, $group_size) =
3924                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
3925                if (!exists $metainfo{$full_rev}) {
3926                        $metainfo{$full_rev} = {};
3927                }
3928                my $meta = $metainfo{$full_rev};
3929                while (<$fd>) {
3930                        last if (s/^\t//);
3931                        if (/^(\S+) (.*)$/) {
3932                                $meta->{$1} = $2;
3933                        }
3934                }
3935                my $data = $_;
3936                chomp $data;
3937                my $rev = substr($full_rev, 0, 8);
3938                my $author = $meta->{'author'};
3939                my %date = parse_date($meta->{'author-time'},
3940                                      $meta->{'author-tz'});
3941                my $date = $date{'iso-tz'};
3942                if ($group_size) {
3943                        $current_color = ++$current_color % $num_colors;
3944                }
3945                print "<tr class=\"$rev_color[$current_color]\">\n";
3946                if ($group_size) {
3947                        print "<td class=\"sha1\"";
3948                        print " title=\"". esc_html($author) . ", $date\"";
3949                        print " rowspan=\"$group_size\"" if ($group_size > 1);
3950                        print ">";
3951                        print $cgi->a({-href => href(action=>"commit",
3952                                                     hash=>$full_rev,
3953                                                     file_name=>$file_name)},
3954                                      esc_html($rev));
3955                        print "</td>\n";
3956                }
3957                open (my $dd, "-|", git_cmd(), "rev-parse", "$full_rev^")
3958                        or die_error(undef, "Open git-rev-parse failed");
3959                my $parent_commit = <$dd>;
3960                close $dd;
3961                chomp($parent_commit);
3962                my $blamed = href(action => 'blame',
3963                                  file_name => $meta->{'filename'},
3964                                  hash_base => $parent_commit);
3965                print "<td class=\"linenr\">";
3966                print $cgi->a({ -href => "$blamed#l$orig_lineno",
3967                                -id => "l$lineno",
3968                                -class => "linenr" },
3969                              esc_html($lineno));
3970                print "</td>";
3971                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
3972                print "</tr>\n";
3973        }
3974        print "</table>\n";
3975        print "</div>";
3976        close $fd
3977                or print "Reading blob failed\n";
3978        git_footer_html();
3979}
3980
3981sub git_blame {
3982        my $fd;
3983
3984        my ($have_blame) = gitweb_check_feature('blame');
3985        if (!$have_blame) {
3986                die_error('403 Permission denied', "Permission denied");
3987        }
3988        die_error('404 Not Found', "File name not defined") if (!$file_name);
3989        $hash_base ||= git_get_head_hash($project);
3990        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3991        my %co = parse_commit($hash_base)
3992                or die_error(undef, "Reading commit failed");
3993        if (!defined $hash) {
3994                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3995                        or die_error(undef, "Error lookup file");
3996        }
3997        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
3998                or die_error(undef, "Open git-annotate failed");
3999        git_header_html();
4000        my $formats_nav =
4001                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
4002                        "blob") .
4003                " | " .
4004                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
4005                        "history") .
4006                " | " .
4007                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
4008                        "HEAD");
4009        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4010        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4011        git_print_page_path($file_name, 'blob', $hash_base);
4012        print "<div class=\"page_body\">\n";
4013        print <<HTML;
4014<table class="blame">
4015  <tr>
4016    <th>Commit</th>
4017    <th>Age</th>
4018    <th>Author</th>
4019    <th>Line</th>
4020    <th>Data</th>
4021  </tr>
4022HTML
4023        my @line_class = (qw(light dark));
4024        my $line_class_len = scalar (@line_class);
4025        my $line_class_num = $#line_class;
4026        while (my $line = <$fd>) {
4027                my $long_rev;
4028                my $short_rev;
4029                my $author;
4030                my $time;
4031                my $lineno;
4032                my $data;
4033                my $age;
4034                my $age_str;
4035                my $age_class;
4036
4037                chomp $line;
4038                $line_class_num = ($line_class_num + 1) % $line_class_len;
4039
4040                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
4041                        $long_rev = $1;
4042                        $author   = $2;
4043                        $time     = $3;
4044                        $lineno   = $4;
4045                        $data     = $5;
4046                } else {
4047                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
4048                        next;
4049                }
4050                $short_rev  = substr ($long_rev, 0, 8);
4051                $age        = time () - $time;
4052                $age_str    = age_string ($age);
4053                $age_str    =~ s/ /&nbsp;/g;
4054                $age_class  = age_class($age);
4055                $author     = esc_html ($author);
4056                $author     =~ s/ /&nbsp;/g;
4057
4058                $data = untabify($data);
4059                $data = esc_html ($data);
4060
4061                print <<HTML;
4062  <tr class="$line_class[$line_class_num]">
4063    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
4064    <td class="$age_class">$age_str</td>
4065    <td>$author</td>
4066    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
4067    <td class="pre">$data</td>
4068  </tr>
4069HTML
4070        } # while (my $line = <$fd>)
4071        print "</table>\n\n";
4072        close $fd
4073                or print "Reading blob failed.\n";
4074        print "</div>";
4075        git_footer_html();
4076}
4077
4078sub git_tags {
4079        my $head = git_get_head_hash($project);
4080        git_header_html();
4081        git_print_page_nav('','', $head,undef,$head);
4082        git_print_header_div('summary', $project);
4083
4084        my @tagslist = git_get_tags_list();
4085        if (@tagslist) {
4086                git_tags_body(\@tagslist);
4087        }
4088        git_footer_html();
4089}
4090
4091sub git_heads {
4092        my $head = git_get_head_hash($project);
4093        git_header_html();
4094        git_print_page_nav('','', $head,undef,$head);
4095        git_print_header_div('summary', $project);
4096
4097        my @headslist = git_get_heads_list();
4098        if (@headslist) {
4099                git_heads_body(\@headslist, $head);
4100        }
4101        git_footer_html();
4102}
4103
4104sub git_blob_plain {
4105        my $expires;
4106
4107        if (!defined $hash) {
4108                if (defined $file_name) {
4109                        my $base = $hash_base || git_get_head_hash($project);
4110                        $hash = git_get_hash_by_path($base, $file_name, "blob")
4111                                or die_error(undef, "Error lookup file");
4112                } else {
4113                        die_error(undef, "No file name defined");
4114                }
4115        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4116                # blobs defined by non-textual hash id's can be cached
4117                $expires = "+1d";
4118        }
4119
4120        my $type = shift;
4121        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
4122                or die_error(undef, "Couldn't cat $file_name, $hash");
4123
4124        $type ||= blob_mimetype($fd, $file_name);
4125
4126        # save as filename, even when no $file_name is given
4127        my $save_as = "$hash";
4128        if (defined $file_name) {
4129                $save_as = $file_name;
4130        } elsif ($type =~ m/^text\//) {
4131                $save_as .= '.txt';
4132        }
4133
4134        print $cgi->header(
4135                -type => "$type",
4136                -expires=>$expires,
4137                -content_disposition => 'inline; filename="' . "$save_as" . '"');
4138        undef $/;
4139        binmode STDOUT, ':raw';
4140        print <$fd>;
4141        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
4142        $/ = "\n";
4143        close $fd;
4144}
4145
4146sub git_blob {
4147        my $expires;
4148
4149        if (!defined $hash) {
4150                if (defined $file_name) {
4151                        my $base = $hash_base || git_get_head_hash($project);
4152                        $hash = git_get_hash_by_path($base, $file_name, "blob")
4153                                or die_error(undef, "Error lookup file");
4154                } else {
4155                        die_error(undef, "No file name defined");
4156                }
4157        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4158                # blobs defined by non-textual hash id's can be cached
4159                $expires = "+1d";
4160        }
4161
4162        my ($have_blame) = gitweb_check_feature('blame');
4163        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
4164                or die_error(undef, "Couldn't cat $file_name, $hash");
4165        my $mimetype = blob_mimetype($fd, $file_name);
4166        if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)!) {
4167                close $fd;
4168                return git_blob_plain($mimetype);
4169        }
4170        # we can have blame only for text/* mimetype
4171        $have_blame &&= ($mimetype =~ m!^text/!);
4172
4173        git_header_html(undef, $expires);
4174        my $formats_nav = '';
4175        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4176                if (defined $file_name) {
4177                        if ($have_blame) {
4178                                $formats_nav .=
4179                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
4180                                                               hash=>$hash, file_name=>$file_name)},
4181                                                "blame") .
4182                                        " | ";
4183                        }
4184                        $formats_nav .=
4185                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
4186                                                       hash=>$hash, file_name=>$file_name)},
4187                                        "history") .
4188                                " | " .
4189                                $cgi->a({-href => href(action=>"blob_plain",
4190                                                       hash=>$hash, file_name=>$file_name)},
4191                                        "raw") .
4192                                " | " .
4193                                $cgi->a({-href => href(action=>"blob",
4194                                                       hash_base=>"HEAD", file_name=>$file_name)},
4195                                        "HEAD");
4196                } else {
4197                        $formats_nav .=
4198                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
4199                }
4200                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4201                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4202        } else {
4203                print "<div class=\"page_nav\">\n" .
4204                      "<br/><br/></div>\n" .
4205                      "<div class=\"title\">$hash</div>\n";
4206        }
4207        git_print_page_path($file_name, "blob", $hash_base);
4208        print "<div class=\"page_body\">\n";
4209        if ($mimetype =~ m!^text/!) {
4210                my $nr;
4211                while (my $line = <$fd>) {
4212                        chomp $line;
4213                        $nr++;
4214                        $line = untabify($line);
4215                        printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
4216                               $nr, $nr, $nr, esc_html($line, -nbsp=>1);
4217                }
4218        } elsif ($mimetype =~ m!^image/!) {
4219                print qq!<img type="$mimetype"!;
4220                if ($file_name) {
4221                        print qq! alt="$file_name" title="$file_name"!;
4222                }
4223                print qq! src="! .
4224                      href(action=>"blob_plain", hash=>$hash,
4225                           hash_base=>$hash_base, file_name=>$file_name) .
4226                      qq!" />\n!;
4227        }
4228        close $fd
4229                or print "Reading blob failed.\n";
4230        print "</div>";
4231        git_footer_html();
4232}
4233
4234sub git_tree {
4235        if (!defined $hash_base) {
4236                $hash_base = "HEAD";
4237        }
4238        if (!defined $hash) {
4239                if (defined $file_name) {
4240                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
4241                } else {
4242                        $hash = $hash_base;
4243                }
4244        }
4245        $/ = "\0";
4246        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
4247                or die_error(undef, "Open git-ls-tree failed");
4248        my @entries = map { chomp; $_ } <$fd>;
4249        close $fd or die_error(undef, "Reading tree failed");
4250        $/ = "\n";
4251
4252        my $refs = git_get_references();
4253        my $ref = format_ref_marker($refs, $hash_base);
4254        git_header_html();
4255        my $basedir = '';
4256        my ($have_blame) = gitweb_check_feature('blame');
4257        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4258                my @views_nav = ();
4259                if (defined $file_name) {
4260                        push @views_nav,
4261                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
4262                                                       hash=>$hash, file_name=>$file_name)},
4263                                        "history"),
4264                                $cgi->a({-href => href(action=>"tree",
4265                                                       hash_base=>"HEAD", file_name=>$file_name)},
4266                                        "HEAD"),
4267                }
4268                my $snapshot_links = format_snapshot_links($hash);
4269                if (defined $snapshot_links) {
4270                        # FIXME: Should be available when we have no hash base as well.
4271                        push @views_nav, $snapshot_links;
4272                }
4273                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
4274                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
4275        } else {
4276                undef $hash_base;
4277                print "<div class=\"page_nav\">\n";
4278                print "<br/><br/></div>\n";
4279                print "<div class=\"title\">$hash</div>\n";
4280        }
4281        if (defined $file_name) {
4282                $basedir = $file_name;
4283                if ($basedir ne '' && substr($basedir, -1) ne '/') {
4284                        $basedir .= '/';
4285                }
4286        }
4287        git_print_page_path($file_name, 'tree', $hash_base);
4288        print "<div class=\"page_body\">\n";
4289        print "<table cellspacing=\"0\">\n";
4290        my $alternate = 1;
4291        # '..' (top directory) link if possible
4292        if (defined $hash_base &&
4293            defined $file_name && $file_name =~ m![^/]+$!) {
4294                if ($alternate) {
4295                        print "<tr class=\"dark\">\n";
4296                } else {
4297                        print "<tr class=\"light\">\n";
4298                }
4299                $alternate ^= 1;
4300
4301                my $up = $file_name;
4302                $up =~ s!/?[^/]+$!!;
4303                undef $up unless $up;
4304                # based on git_print_tree_entry
4305                print '<td class="mode">' . mode_str('040000') . "</td>\n";
4306                print '<td class="list">';
4307                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
4308                                             file_name=>$up)},
4309                              "..");
4310                print "</td>\n";
4311                print "<td class=\"link\"></td>\n";
4312
4313                print "</tr>\n";
4314        }
4315        foreach my $line (@entries) {
4316                my %t = parse_ls_tree_line($line, -z => 1);
4317
4318                if ($alternate) {
4319                        print "<tr class=\"dark\">\n";
4320                } else {
4321                        print "<tr class=\"light\">\n";
4322                }
4323                $alternate ^= 1;
4324
4325                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
4326
4327                print "</tr>\n";
4328        }
4329        print "</table>\n" .
4330              "</div>";
4331        git_footer_html();
4332}
4333
4334sub git_snapshot {
4335        my @supported_fmts = gitweb_check_feature('snapshot');
4336        @supported_fmts = filter_snapshot_fmts(@supported_fmts);
4337
4338        my $format = $cgi->param('sf');
4339        if (!@supported_fmts) {
4340                die_error('403 Permission denied', "Permission denied");
4341        }
4342        # default to first supported snapshot format
4343        $format ||= $supported_fmts[0];
4344        if ($format !~ m/^[a-z0-9]+$/) {
4345                die_error(undef, "Invalid snapshot format parameter");
4346        } elsif (!exists($known_snapshot_formats{$format})) {
4347                die_error(undef, "Unknown snapshot format");
4348        } elsif (!grep($_ eq $format, @supported_fmts)) {
4349                die_error(undef, "Unsupported snapshot format");
4350        }
4351
4352        if (!defined $hash) {
4353                $hash = git_get_head_hash($project);
4354        }
4355
4356        my $git_command = git_cmd_str();
4357        my $name = $project;
4358        $name =~ s,([^/])/*\.git$,$1,;
4359        $name = basename($name);
4360        my $filename = to_utf8($name);
4361        $name =~ s/\047/\047\\\047\047/g;
4362        my $cmd;
4363        $filename .= "-$hash$known_snapshot_formats{$format}{'suffix'}";
4364        $cmd = "$git_command archive " .
4365                "--format=$known_snapshot_formats{$format}{'format'} " .
4366                "--prefix=\'$name\'/ $hash";
4367        if (exists $known_snapshot_formats{$format}{'compressor'}) {
4368                $cmd .= ' | ' . join ' ', @{$known_snapshot_formats{$format}{'compressor'}};
4369        }
4370
4371        print $cgi->header(
4372                -type => $known_snapshot_formats{$format}{'type'},
4373                -content_disposition => 'inline; filename="' . "$filename" . '"',
4374                -status => '200 OK');
4375
4376        open my $fd, "-|", $cmd
4377                or die_error(undef, "Execute git-archive failed");
4378        binmode STDOUT, ':raw';
4379        print <$fd>;
4380        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
4381        close $fd;
4382}
4383
4384sub git_log {
4385        my $head = git_get_head_hash($project);
4386        if (!defined $hash) {
4387                $hash = $head;
4388        }
4389        if (!defined $page) {
4390                $page = 0;
4391        }
4392        my $refs = git_get_references();
4393
4394        my @commitlist = parse_commits($hash, 101, (100 * $page));
4395
4396        my $paging_nav = format_paging_nav('log', $hash, $head, $page, (100 * ($page+1)));
4397
4398        git_header_html();
4399        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
4400
4401        if (!@commitlist) {
4402                my %co = parse_commit($hash);
4403
4404                git_print_header_div('summary', $project);
4405                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
4406        }
4407        my $to = ($#commitlist >= 99) ? (99) : ($#commitlist);
4408        for (my $i = 0; $i <= $to; $i++) {
4409                my %co = %{$commitlist[$i]};
4410                next if !%co;
4411                my $commit = $co{'id'};
4412                my $ref = format_ref_marker($refs, $commit);
4413                my %ad = parse_date($co{'author_epoch'});
4414                git_print_header_div('commit',
4415                               "<span class=\"age\">$co{'age_string'}</span>" .
4416                               esc_html($co{'title'}) . $ref,
4417                               $commit);
4418                print "<div class=\"title_text\">\n" .
4419                      "<div class=\"log_link\">\n" .
4420                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
4421                      " | " .
4422                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
4423                      " | " .
4424                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
4425                      "<br/>\n" .
4426                      "</div>\n" .
4427                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
4428                      "</div>\n";
4429
4430                print "<div class=\"log_body\">\n";
4431                git_print_log($co{'comment'}, -final_empty_line=> 1);
4432                print "</div>\n";
4433        }
4434        if ($#commitlist >= 100) {
4435                print "<div class=\"page_nav\">\n";
4436                print $cgi->a({-href => href(action=>"log", hash=>$hash, page=>$page+1),
4437                               -accesskey => "n", -title => "Alt-n"}, "next");
4438                print "</div>\n";
4439        }
4440        git_footer_html();
4441}
4442
4443sub git_commit {
4444        $hash ||= $hash_base || "HEAD";
4445        my %co = parse_commit($hash);
4446        if (!%co) {
4447                die_error(undef, "Unknown commit object");
4448        }
4449        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
4450        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
4451
4452        my $parent  = $co{'parent'};
4453        my $parents = $co{'parents'}; # listref
4454
4455        # we need to prepare $formats_nav before any parameter munging
4456        my $formats_nav;
4457        if (!defined $parent) {
4458                # --root commitdiff
4459                $formats_nav .= '(initial)';
4460        } elsif (@$parents == 1) {
4461                # single parent commit
4462                $formats_nav .=
4463                        '(parent: ' .
4464                        $cgi->a({-href => href(action=>"commit",
4465                                               hash=>$parent)},
4466                                esc_html(substr($parent, 0, 7))) .
4467                        ')';
4468        } else {
4469                # merge commit
4470                $formats_nav .=
4471                        '(merge: ' .
4472                        join(' ', map {
4473                                $cgi->a({-href => href(action=>"commit",
4474                                                       hash=>$_)},
4475                                        esc_html(substr($_, 0, 7)));
4476                        } @$parents ) .
4477                        ')';
4478        }
4479
4480        if (!defined $parent) {
4481                $parent = "--root";
4482        }
4483        my @difftree;
4484        open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
4485                @diff_opts,
4486                (@$parents <= 1 ? $parent : '-c'),
4487                $hash, "--"
4488                or die_error(undef, "Open git-diff-tree failed");
4489        @difftree = map { chomp; $_ } <$fd>;
4490        close $fd or die_error(undef, "Reading git-diff-tree failed");
4491
4492        # non-textual hash id's can be cached
4493        my $expires;
4494        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4495                $expires = "+1d";
4496        }
4497        my $refs = git_get_references();
4498        my $ref = format_ref_marker($refs, $co{'id'});
4499
4500        git_header_html(undef, $expires);
4501        git_print_page_nav('commit', '',
4502                           $hash, $co{'tree'}, $hash,
4503                           $formats_nav);
4504
4505        if (defined $co{'parent'}) {
4506                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
4507        } else {
4508                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
4509        }
4510        print "<div class=\"title_text\">\n" .
4511              "<table cellspacing=\"0\">\n";
4512        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
4513              "<tr>" .
4514              "<td></td><td> $ad{'rfc2822'}";
4515        if ($ad{'hour_local'} < 6) {
4516                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
4517                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
4518        } else {
4519                printf(" (%02d:%02d %s)",
4520                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
4521        }
4522        print "</td>" .
4523              "</tr>\n";
4524        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
4525        print "<tr><td></td><td> $cd{'rfc2822'}" .
4526              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
4527              "</td></tr>\n";
4528        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
4529        print "<tr>" .
4530              "<td>tree</td>" .
4531              "<td class=\"sha1\">" .
4532              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
4533                       class => "list"}, $co{'tree'}) .
4534              "</td>" .
4535              "<td class=\"link\">" .
4536              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
4537                      "tree");
4538        my $snapshot_links = format_snapshot_links($hash);
4539        if (defined $snapshot_links) {
4540                print " | " . $snapshot_links;
4541        }
4542        print "</td>" .
4543              "</tr>\n";
4544
4545        foreach my $par (@$parents) {
4546                print "<tr>" .
4547                      "<td>parent</td>" .
4548                      "<td class=\"sha1\">" .
4549                      $cgi->a({-href => href(action=>"commit", hash=>$par),
4550                               class => "list"}, $par) .
4551                      "</td>" .
4552                      "<td class=\"link\">" .
4553                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
4554                      " | " .
4555                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
4556                      "</td>" .
4557                      "</tr>\n";
4558        }
4559        print "</table>".
4560              "</div>\n";
4561
4562        print "<div class=\"page_body\">\n";
4563        git_print_log($co{'comment'});
4564        print "</div>\n";
4565
4566        git_difftree_body(\@difftree, $hash, @$parents);
4567
4568        git_footer_html();
4569}
4570
4571sub git_object {
4572        # object is defined by:
4573        # - hash or hash_base alone
4574        # - hash_base and file_name
4575        my $type;
4576
4577        # - hash or hash_base alone
4578        if ($hash || ($hash_base && !defined $file_name)) {
4579                my $object_id = $hash || $hash_base;
4580
4581                my $git_command = git_cmd_str();
4582                open my $fd, "-|", "$git_command cat-file -t $object_id 2>/dev/null"
4583                        or die_error('404 Not Found', "Object does not exist");
4584                $type = <$fd>;
4585                chomp $type;
4586                close $fd
4587                        or die_error('404 Not Found', "Object does not exist");
4588
4589        # - hash_base and file_name
4590        } elsif ($hash_base && defined $file_name) {
4591                $file_name =~ s,/+$,,;
4592
4593                system(git_cmd(), "cat-file", '-e', $hash_base) == 0
4594                        or die_error('404 Not Found', "Base object does not exist");
4595
4596                # here errors should not hapen
4597                open my $fd, "-|", git_cmd(), "ls-tree", $hash_base, "--", $file_name
4598                        or die_error(undef, "Open git-ls-tree failed");
4599                my $line = <$fd>;
4600                close $fd;
4601
4602                #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
4603                unless ($line && $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/) {
4604                        die_error('404 Not Found', "File or directory for given base does not exist");
4605                }
4606                $type = $2;
4607                $hash = $3;
4608        } else {
4609                die_error('404 Not Found', "Not enough information to find object");
4610        }
4611
4612        print $cgi->redirect(-uri => href(action=>$type, -full=>1,
4613                                          hash=>$hash, hash_base=>$hash_base,
4614                                          file_name=>$file_name),
4615                             -status => '302 Found');
4616}
4617
4618sub git_blobdiff {
4619        my $format = shift || 'html';
4620
4621        my $fd;
4622        my @difftree;
4623        my %diffinfo;
4624        my $expires;
4625
4626        # preparing $fd and %diffinfo for git_patchset_body
4627        # new style URI
4628        if (defined $hash_base && defined $hash_parent_base) {
4629                if (defined $file_name) {
4630                        # read raw output
4631                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4632                                $hash_parent_base, $hash_base,
4633                                "--", (defined $file_parent ? $file_parent : ()), $file_name
4634                                or die_error(undef, "Open git-diff-tree failed");
4635                        @difftree = map { chomp; $_ } <$fd>;
4636                        close $fd
4637                                or die_error(undef, "Reading git-diff-tree failed");
4638                        @difftree
4639                                or die_error('404 Not Found', "Blob diff not found");
4640
4641                } elsif (defined $hash &&
4642                         $hash =~ /[0-9a-fA-F]{40}/) {
4643                        # try to find filename from $hash
4644
4645                        # read filtered raw output
4646                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4647                                $hash_parent_base, $hash_base, "--"
4648                                or die_error(undef, "Open git-diff-tree failed");
4649                        @difftree =
4650                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
4651                                # $hash == to_id
4652                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
4653                                map { chomp; $_ } <$fd>;
4654                        close $fd
4655                                or die_error(undef, "Reading git-diff-tree failed");
4656                        @difftree
4657                                or die_error('404 Not Found', "Blob diff not found");
4658
4659                } else {
4660                        die_error('404 Not Found', "Missing one of the blob diff parameters");
4661                }
4662
4663                if (@difftree > 1) {
4664                        die_error('404 Not Found', "Ambiguous blob diff specification");
4665                }
4666
4667                %diffinfo = parse_difftree_raw_line($difftree[0]);
4668                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
4669                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
4670
4671                $hash_parent ||= $diffinfo{'from_id'};
4672                $hash        ||= $diffinfo{'to_id'};
4673
4674                # non-textual hash id's can be cached
4675                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
4676                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
4677                        $expires = '+1d';
4678                }
4679
4680                # open patch output
4681                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4682                        '-p', ($format eq 'html' ? "--full-index" : ()),
4683                        $hash_parent_base, $hash_base,
4684                        "--", (defined $file_parent ? $file_parent : ()), $file_name
4685                        or die_error(undef, "Open git-diff-tree failed");
4686        }
4687
4688        # old/legacy style URI
4689        if (!%diffinfo && # if new style URI failed
4690            defined $hash && defined $hash_parent) {
4691                # fake git-diff-tree raw output
4692                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
4693                $diffinfo{'from_id'} = $hash_parent;
4694                $diffinfo{'to_id'}   = $hash;
4695                if (defined $file_name) {
4696                        if (defined $file_parent) {
4697                                $diffinfo{'status'} = '2';
4698                                $diffinfo{'from_file'} = $file_parent;
4699                                $diffinfo{'to_file'}   = $file_name;
4700                        } else { # assume not renamed
4701                                $diffinfo{'status'} = '1';
4702                                $diffinfo{'from_file'} = $file_name;
4703                                $diffinfo{'to_file'}   = $file_name;
4704                        }
4705                } else { # no filename given
4706                        $diffinfo{'status'} = '2';
4707                        $diffinfo{'from_file'} = $hash_parent;
4708                        $diffinfo{'to_file'}   = $hash;
4709                }
4710
4711                # non-textual hash id's can be cached
4712                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
4713                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4714                        $expires = '+1d';
4715                }
4716
4717                # open patch output
4718                open $fd, "-|", git_cmd(), "diff", @diff_opts,
4719                        '-p', ($format eq 'html' ? "--full-index" : ()),
4720                        $hash_parent, $hash, "--"
4721                        or die_error(undef, "Open git-diff failed");
4722        } else  {
4723                die_error('404 Not Found', "Missing one of the blob diff parameters")
4724                        unless %diffinfo;
4725        }
4726
4727        # header
4728        if ($format eq 'html') {
4729                my $formats_nav =
4730                        $cgi->a({-href => href(action=>"blobdiff_plain",
4731                                               hash=>$hash, hash_parent=>$hash_parent,
4732                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
4733                                               file_name=>$file_name, file_parent=>$file_parent)},
4734                                "raw");
4735                git_header_html(undef, $expires);
4736                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4737                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4738                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4739                } else {
4740                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
4741                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
4742                }
4743                if (defined $file_name) {
4744                        git_print_page_path($file_name, "blob", $hash_base);
4745                } else {
4746                        print "<div class=\"page_path\"></div>\n";
4747                }
4748
4749        } elsif ($format eq 'plain') {
4750                print $cgi->header(
4751                        -type => 'text/plain',
4752                        -charset => 'utf-8',
4753                        -expires => $expires,
4754                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
4755
4756                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4757
4758        } else {
4759                die_error(undef, "Unknown blobdiff format");
4760        }
4761
4762        # patch
4763        if ($format eq 'html') {
4764                print "<div class=\"page_body\">\n";
4765
4766                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
4767                close $fd;
4768
4769                print "</div>\n"; # class="page_body"
4770                git_footer_html();
4771
4772        } else {
4773                while (my $line = <$fd>) {
4774                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
4775                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
4776
4777                        print $line;
4778
4779                        last if $line =~ m!^\+\+\+!;
4780                }
4781                local $/ = undef;
4782                print <$fd>;
4783                close $fd;
4784        }
4785}
4786
4787sub git_blobdiff_plain {
4788        git_blobdiff('plain');
4789}
4790
4791sub git_commitdiff {
4792        my $format = shift || 'html';
4793        $hash ||= $hash_base || "HEAD";
4794        my %co = parse_commit($hash);
4795        if (!%co) {
4796                die_error(undef, "Unknown commit object");
4797        }
4798
4799        # choose format for commitdiff for merge
4800        if (! defined $hash_parent && @{$co{'parents'}} > 1) {
4801                $hash_parent = '--cc';
4802        }
4803        # we need to prepare $formats_nav before almost any parameter munging
4804        my $formats_nav;
4805        if ($format eq 'html') {
4806                $formats_nav =
4807                        $cgi->a({-href => href(action=>"commitdiff_plain",
4808                                               hash=>$hash, hash_parent=>$hash_parent)},
4809                                "raw");
4810
4811                if (defined $hash_parent &&
4812                    $hash_parent ne '-c' && $hash_parent ne '--cc') {
4813                        # commitdiff with two commits given
4814                        my $hash_parent_short = $hash_parent;
4815                        if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4816                                $hash_parent_short = substr($hash_parent, 0, 7);
4817                        }
4818                        $formats_nav .=
4819                                ' (from';
4820                        for (my $i = 0; $i < @{$co{'parents'}}; $i++) {
4821                                if ($co{'parents'}[$i] eq $hash_parent) {
4822                                        $formats_nav .= ' parent ' . ($i+1);
4823                                        last;
4824                                }
4825                        }
4826                        $formats_nav .= ': ' .
4827                                $cgi->a({-href => href(action=>"commitdiff",
4828                                                       hash=>$hash_parent)},
4829                                        esc_html($hash_parent_short)) .
4830                                ')';
4831                } elsif (!$co{'parent'}) {
4832                        # --root commitdiff
4833                        $formats_nav .= ' (initial)';
4834                } elsif (scalar @{$co{'parents'}} == 1) {
4835                        # single parent commit
4836                        $formats_nav .=
4837                                ' (parent: ' .
4838                                $cgi->a({-href => href(action=>"commitdiff",
4839                                                       hash=>$co{'parent'})},
4840                                        esc_html(substr($co{'parent'}, 0, 7))) .
4841                                ')';
4842                } else {
4843                        # merge commit
4844                        if ($hash_parent eq '--cc') {
4845                                $formats_nav .= ' | ' .
4846                                        $cgi->a({-href => href(action=>"commitdiff",
4847                                                               hash=>$hash, hash_parent=>'-c')},
4848                                                'combined');
4849                        } else { # $hash_parent eq '-c'
4850                                $formats_nav .= ' | ' .
4851                                        $cgi->a({-href => href(action=>"commitdiff",
4852                                                               hash=>$hash, hash_parent=>'--cc')},
4853                                                'compact');
4854                        }
4855                        $formats_nav .=
4856                                ' (merge: ' .
4857                                join(' ', map {
4858                                        $cgi->a({-href => href(action=>"commitdiff",
4859                                                               hash=>$_)},
4860                                                esc_html(substr($_, 0, 7)));
4861                                } @{$co{'parents'}} ) .
4862                                ')';
4863                }
4864        }
4865
4866        my $hash_parent_param = $hash_parent;
4867        if (!defined $hash_parent_param) {
4868                # --cc for multiple parents, --root for parentless
4869                $hash_parent_param =
4870                        @{$co{'parents'}} > 1 ? '--cc' : $co{'parent'} || '--root';
4871        }
4872
4873        # read commitdiff
4874        my $fd;
4875        my @difftree;
4876        if ($format eq 'html') {
4877                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4878                        "--no-commit-id", "--patch-with-raw", "--full-index",
4879                        $hash_parent_param, $hash, "--"
4880                        or die_error(undef, "Open git-diff-tree failed");
4881
4882                while (my $line = <$fd>) {
4883                        chomp $line;
4884                        # empty line ends raw part of diff-tree output
4885                        last unless $line;
4886                        push @difftree, scalar parse_difftree_raw_line($line);
4887                }
4888
4889        } elsif ($format eq 'plain') {
4890                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4891                        '-p', $hash_parent_param, $hash, "--"
4892                        or die_error(undef, "Open git-diff-tree failed");
4893
4894        } else {
4895                die_error(undef, "Unknown commitdiff format");
4896        }
4897
4898        # non-textual hash id's can be cached
4899        my $expires;
4900        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4901                $expires = "+1d";
4902        }
4903
4904        # write commit message
4905        if ($format eq 'html') {
4906                my $refs = git_get_references();
4907                my $ref = format_ref_marker($refs, $co{'id'});
4908
4909                git_header_html(undef, $expires);
4910                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
4911                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
4912                git_print_authorship(\%co);
4913                print "<div class=\"page_body\">\n";
4914                if (@{$co{'comment'}} > 1) {
4915                        print "<div class=\"log\">\n";
4916                        git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
4917                        print "</div>\n"; # class="log"
4918                }
4919
4920        } elsif ($format eq 'plain') {
4921                my $refs = git_get_references("tags");
4922                my $tagname = git_get_rev_name_tags($hash);
4923                my $filename = basename($project) . "-$hash.patch";
4924
4925                print $cgi->header(
4926                        -type => 'text/plain',
4927                        -charset => 'utf-8',
4928                        -expires => $expires,
4929                        -content_disposition => 'inline; filename="' . "$filename" . '"');
4930                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
4931                print <<TEXT;
4932From: $co{'author'}
4933Date: $ad{'rfc2822'} ($ad{'tz_local'})
4934Subject: $co{'title'}
4935TEXT
4936                print "X-Git-Tag: $tagname\n" if $tagname;
4937                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4938
4939                foreach my $line (@{$co{'comment'}}) {
4940                        print "$line\n";
4941                }
4942                print "---\n\n";
4943        }
4944
4945        # write patch
4946        if ($format eq 'html') {
4947                my $use_parents = !defined $hash_parent ||
4948                        $hash_parent eq '-c' || $hash_parent eq '--cc';
4949                git_difftree_body(\@difftree, $hash,
4950                                  $use_parents ? @{$co{'parents'}} : $hash_parent);
4951                print "<br/>\n";
4952
4953                git_patchset_body($fd, \@difftree, $hash,
4954                                  $use_parents ? @{$co{'parents'}} : $hash_parent);
4955                close $fd;
4956                print "</div>\n"; # class="page_body"
4957                git_footer_html();
4958
4959        } elsif ($format eq 'plain') {
4960                local $/ = undef;
4961                print <$fd>;
4962                close $fd
4963                        or print "Reading git-diff-tree failed\n";
4964        }
4965}
4966
4967sub git_commitdiff_plain {
4968        git_commitdiff('plain');
4969}
4970
4971sub git_history {
4972        if (!defined $hash_base) {
4973                $hash_base = git_get_head_hash($project);
4974        }
4975        if (!defined $page) {
4976                $page = 0;
4977        }
4978        my $ftype;
4979        my %co = parse_commit($hash_base);
4980        if (!%co) {
4981                die_error(undef, "Unknown commit object");
4982        }
4983
4984        my $refs = git_get_references();
4985        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
4986
4987        if (!defined $hash && defined $file_name) {
4988                $hash = git_get_hash_by_path($hash_base, $file_name);
4989        }
4990        if (defined $hash) {
4991                $ftype = git_get_type($hash);
4992        }
4993
4994        my @commitlist = parse_commits($hash_base, 101, (100 * $page), "--full-history", $file_name);
4995
4996        my $paging_nav = '';
4997        if ($page > 0) {
4998                $paging_nav .=
4999                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
5000                                               file_name=>$file_name)},
5001                                "first");
5002                $paging_nav .= " &sdot; " .
5003                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
5004                                               file_name=>$file_name, page=>$page-1),
5005                                 -accesskey => "p", -title => "Alt-p"}, "prev");
5006        } else {
5007                $paging_nav .= "first";
5008                $paging_nav .= " &sdot; prev";
5009        }
5010        if ($#commitlist >= 100) {
5011                $paging_nav .= " &sdot; " .
5012                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
5013                                               file_name=>$file_name, page=>$page+1),
5014                                 -accesskey => "n", -title => "Alt-n"}, "next");
5015        } else {
5016                $paging_nav .= " &sdot; next";
5017        }
5018        my $next_link = '';
5019        if ($#commitlist >= 100) {
5020                $next_link =
5021                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
5022                                               file_name=>$file_name, page=>$page+1),
5023                                 -accesskey => "n", -title => "Alt-n"}, "next");
5024        }
5025
5026        git_header_html();
5027        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
5028        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
5029        git_print_page_path($file_name, $ftype, $hash_base);
5030
5031        git_history_body(\@commitlist, 0, 99,
5032                         $refs, $hash_base, $ftype, $next_link);
5033
5034        git_footer_html();
5035}
5036
5037sub git_search {
5038        my ($have_search) = gitweb_check_feature('search');
5039        if (!$have_search) {
5040                die_error('403 Permission denied', "Permission denied");
5041        }
5042        if (!defined $searchtext) {
5043                die_error(undef, "Text field empty");
5044        }
5045        if (!defined $hash) {
5046                $hash = git_get_head_hash($project);
5047        }
5048        my %co = parse_commit($hash);
5049        if (!%co) {
5050                die_error(undef, "Unknown commit object");
5051        }
5052        if (!defined $page) {
5053                $page = 0;
5054        }
5055
5056        $searchtype ||= 'commit';
5057        if ($searchtype eq 'pickaxe') {
5058                # pickaxe may take all resources of your box and run for several minutes
5059                # with every query - so decide by yourself how public you make this feature
5060                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
5061                if (!$have_pickaxe) {
5062                        die_error('403 Permission denied', "Permission denied");
5063                }
5064        }
5065        if ($searchtype eq 'grep') {
5066                my ($have_grep) = gitweb_check_feature('grep');
5067                if (!$have_grep) {
5068                        die_error('403 Permission denied', "Permission denied");
5069                }
5070        }
5071
5072        git_header_html();
5073
5074        if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
5075                my $greptype;
5076                if ($searchtype eq 'commit') {
5077                        $greptype = "--grep=";
5078                } elsif ($searchtype eq 'author') {
5079                        $greptype = "--author=";
5080                } elsif ($searchtype eq 'committer') {
5081                        $greptype = "--committer=";
5082                }
5083                $greptype .= $search_regexp;
5084                my @commitlist = parse_commits($hash, 101, (100 * $page), $greptype);
5085
5086                my $paging_nav = '';
5087                if ($page > 0) {
5088                        $paging_nav .=
5089                                $cgi->a({-href => href(action=>"search", hash=>$hash,
5090                                                       searchtext=>$searchtext, searchtype=>$searchtype)},
5091                                        "first");
5092                        $paging_nav .= " &sdot; " .
5093                                $cgi->a({-href => href(action=>"search", hash=>$hash,
5094                                                       searchtext=>$searchtext, searchtype=>$searchtype,
5095                                                       page=>$page-1),
5096                                         -accesskey => "p", -title => "Alt-p"}, "prev");
5097                } else {
5098                        $paging_nav .= "first";
5099                        $paging_nav .= " &sdot; prev";
5100                }
5101                if ($#commitlist >= 100) {
5102                        $paging_nav .= " &sdot; " .
5103                                $cgi->a({-href => href(action=>"search", hash=>$hash,
5104                                                       searchtext=>$searchtext, searchtype=>$searchtype,
5105                                                       page=>$page+1),
5106                                         -accesskey => "n", -title => "Alt-n"}, "next");
5107                } else {
5108                        $paging_nav .= " &sdot; next";
5109                }
5110                my $next_link = '';
5111                if ($#commitlist >= 100) {
5112                        $next_link =
5113                                $cgi->a({-href => href(action=>"search", hash=>$hash,
5114                                                       searchtext=>$searchtext, searchtype=>$searchtype,
5115                                                       page=>$page+1),
5116                                         -accesskey => "n", -title => "Alt-n"}, "next");
5117                }
5118
5119                git_print_page_nav('','', $hash,$co{'tree'},$hash, $paging_nav);
5120                git_print_header_div('commit', esc_html($co{'title'}), $hash);
5121                git_search_grep_body(\@commitlist, 0, 99, $next_link);
5122        }
5123
5124        if ($searchtype eq 'pickaxe') {
5125                git_print_page_nav('','', $hash,$co{'tree'},$hash);
5126                git_print_header_div('commit', esc_html($co{'title'}), $hash);
5127
5128                print "<table cellspacing=\"0\">\n";
5129                my $alternate = 1;
5130                $/ = "\n";
5131                my $git_command = git_cmd_str();
5132                my $searchqtext = $searchtext;
5133                $searchqtext =~ s/'/'\\''/;
5134                open my $fd, "-|", "$git_command rev-list $hash | " .
5135                        "$git_command diff-tree -r --stdin -S\'$searchqtext\'";
5136                undef %co;
5137                my @files;
5138                while (my $line = <$fd>) {
5139                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
5140                                my %set;
5141                                $set{'file'} = $6;
5142                                $set{'from_id'} = $3;
5143                                $set{'to_id'} = $4;
5144                                $set{'id'} = $set{'to_id'};
5145                                if ($set{'id'} =~ m/0{40}/) {
5146                                        $set{'id'} = $set{'from_id'};
5147                                }
5148                                if ($set{'id'} =~ m/0{40}/) {
5149                                        next;
5150                                }
5151                                push @files, \%set;
5152                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
5153                                if (%co) {
5154                                        if ($alternate) {
5155                                                print "<tr class=\"dark\">\n";
5156                                        } else {
5157                                                print "<tr class=\"light\">\n";
5158                                        }
5159                                        $alternate ^= 1;
5160                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
5161                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
5162                                              "<td>" .
5163                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
5164                                                      -class => "list subject"},
5165                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
5166                                        while (my $setref = shift @files) {
5167                                                my %set = %$setref;
5168                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
5169                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
5170                                                              -class => "list"},
5171                                                              "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
5172                                                      "<br/>\n";
5173                                        }
5174                                        print "</td>\n" .
5175                                              "<td class=\"link\">" .
5176                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
5177                                              " | " .
5178                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
5179                                        print "</td>\n" .
5180                                              "</tr>\n";
5181                                }
5182                                %co = parse_commit($1);
5183                        }
5184                }
5185                close $fd;
5186
5187                print "</table>\n";
5188        }
5189
5190        if ($searchtype eq 'grep') {
5191                git_print_page_nav('','', $hash,$co{'tree'},$hash);
5192                git_print_header_div('commit', esc_html($co{'title'}), $hash);
5193
5194                print "<table cellspacing=\"0\">\n";
5195                my $alternate = 1;
5196                my $matches = 0;
5197                $/ = "\n";
5198                open my $fd, "-|", git_cmd(), 'grep', '-n', '-i', '-E', $searchtext, $co{'tree'};
5199                my $lastfile = '';
5200                while (my $line = <$fd>) {
5201                        chomp $line;
5202                        my ($file, $lno, $ltext, $binary);
5203                        last if ($matches++ > 1000);
5204                        if ($line =~ /^Binary file (.+) matches$/) {
5205                                $file = $1;
5206                                $binary = 1;
5207                        } else {
5208                                (undef, $file, $lno, $ltext) = split(/:/, $line, 4);
5209                        }
5210                        if ($file ne $lastfile) {
5211                                $lastfile and print "</td></tr>\n";
5212                                if ($alternate++) {
5213                                        print "<tr class=\"dark\">\n";
5214                                } else {
5215                                        print "<tr class=\"light\">\n";
5216                                }
5217                                print "<td class=\"list\">".
5218                                        $cgi->a({-href => href(action=>"blob", hash=>$co{'hash'},
5219                                                               file_name=>"$file"),
5220                                                -class => "list"}, esc_path($file));
5221                                print "</td><td>\n";
5222                                $lastfile = $file;
5223                        }
5224                        if ($binary) {
5225                                print "<div class=\"binary\">Binary file</div>\n";
5226                        } else {
5227                                $ltext = untabify($ltext);
5228                                if ($ltext =~ m/^(.*)($searchtext)(.*)$/i) {
5229                                        $ltext = esc_html($1, -nbsp=>1);
5230                                        $ltext .= '<span class="match">';
5231                                        $ltext .= esc_html($2, -nbsp=>1);
5232                                        $ltext .= '</span>';
5233                                        $ltext .= esc_html($3, -nbsp=>1);
5234                                } else {
5235                                        $ltext = esc_html($ltext, -nbsp=>1);
5236                                }
5237                                print "<div class=\"pre\">" .
5238                                        $cgi->a({-href => href(action=>"blob", hash=>$co{'hash'},
5239                                                               file_name=>"$file").'#l'.$lno,
5240                                                -class => "linenr"}, sprintf('%4i', $lno))
5241                                        . ' ' .  $ltext . "</div>\n";
5242                        }
5243                }
5244                if ($lastfile) {
5245                        print "</td></tr>\n";
5246                        if ($matches > 1000) {
5247                                print "<div class=\"diff nodifferences\">Too many matches, listing trimmed</div>\n";
5248                        }
5249                } else {
5250                        print "<div class=\"diff nodifferences\">No matches found</div>\n";
5251                }
5252                close $fd;
5253
5254                print "</table>\n";
5255        }
5256        git_footer_html();
5257}
5258
5259sub git_search_help {
5260        git_header_html();
5261        git_print_page_nav('','', $hash,$hash,$hash);
5262        print <<EOT;
5263<dl>
5264<dt><b>commit</b></dt>
5265<dd>The commit messages and authorship information will be scanned for the given string.</dd>
5266EOT
5267        my ($have_grep) = gitweb_check_feature('grep');
5268        if ($have_grep) {
5269                print <<EOT;
5270<dt><b>grep</b></dt>
5271<dd>All files in the currently selected tree (HEAD unless you are explicitly browsing
5272    a different one) are searched for the given
5273<a href="http://en.wikipedia.org/wiki/Regular_expression">regular expression</a>
5274(POSIX extended) and the matches are listed. On large
5275trees, this search can take a while and put some strain on the server, so please use it with
5276some consideration.</dd>
5277EOT
5278        }
5279        print <<EOT;
5280<dt><b>author</b></dt>
5281<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
5282<dt><b>committer</b></dt>
5283<dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
5284EOT
5285        my ($have_pickaxe) = gitweb_check_feature('pickaxe');
5286        if ($have_pickaxe) {
5287                print <<EOT;
5288<dt><b>pickaxe</b></dt>
5289<dd>All commits that caused the string to appear or disappear from any file (changes that
5290added, removed or "modified" the string) will be listed. This search can take a while and
5291takes a lot of strain on the server, so please use it wisely.</dd>
5292EOT
5293        }
5294        print "</dl>\n";
5295        git_footer_html();
5296}
5297
5298sub git_shortlog {
5299        my $head = git_get_head_hash($project);
5300        if (!defined $hash) {
5301                $hash = $head;
5302        }
5303        if (!defined $page) {
5304                $page = 0;
5305        }
5306        my $refs = git_get_references();
5307
5308        my @commitlist = parse_commits($hash, 101, (100 * $page));
5309
5310        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, (100 * ($page+1)));
5311        my $next_link = '';
5312        if ($#commitlist >= 100) {
5313                $next_link =
5314                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
5315                                 -accesskey => "n", -title => "Alt-n"}, "next");
5316        }
5317
5318        git_header_html();
5319        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
5320        git_print_header_div('summary', $project);
5321
5322        git_shortlog_body(\@commitlist, 0, 99, $refs, $next_link);
5323
5324        git_footer_html();
5325}
5326
5327## ......................................................................
5328## feeds (RSS, Atom; OPML)
5329
5330sub git_feed {
5331        my $format = shift || 'atom';
5332        my ($have_blame) = gitweb_check_feature('blame');
5333
5334        # Atom: http://www.atomenabled.org/developers/syndication/
5335        # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
5336        if ($format ne 'rss' && $format ne 'atom') {
5337                die_error(undef, "Unknown web feed format");
5338        }
5339
5340        # log/feed of current (HEAD) branch, log of given branch, history of file/directory
5341        my $head = $hash || 'HEAD';
5342        my @commitlist = parse_commits($head, 150, 0, undef, $file_name);
5343
5344        my %latest_commit;
5345        my %latest_date;
5346        my $content_type = "application/$format+xml";
5347        if (defined $cgi->http('HTTP_ACCEPT') &&
5348                 $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
5349                # browser (feed reader) prefers text/xml
5350                $content_type = 'text/xml';
5351        }
5352        if (defined($commitlist[0])) {
5353                %latest_commit = %{$commitlist[0]};
5354                %latest_date   = parse_date($latest_commit{'author_epoch'});
5355                print $cgi->header(
5356                        -type => $content_type,
5357                        -charset => 'utf-8',
5358                        -last_modified => $latest_date{'rfc2822'});
5359        } else {
5360                print $cgi->header(
5361                        -type => $content_type,
5362                        -charset => 'utf-8');
5363        }
5364
5365        # Optimization: skip generating the body if client asks only
5366        # for Last-Modified date.
5367        return if ($cgi->request_method() eq 'HEAD');
5368
5369        # header variables
5370        my $title = "$site_name - $project/$action";
5371        my $feed_type = 'log';
5372        if (defined $hash) {
5373                $title .= " - '$hash'";
5374                $feed_type = 'branch log';
5375                if (defined $file_name) {
5376                        $title .= " :: $file_name";
5377                        $feed_type = 'history';
5378                }
5379        } elsif (defined $file_name) {
5380                $title .= " - $file_name";
5381                $feed_type = 'history';
5382        }
5383        $title .= " $feed_type";
5384        my $descr = git_get_project_description($project);
5385        if (defined $descr) {
5386                $descr = esc_html($descr);
5387        } else {
5388                $descr = "$project " .
5389                         ($format eq 'rss' ? 'RSS' : 'Atom') .
5390                         " feed";
5391        }
5392        my $owner = git_get_project_owner($project);
5393        $owner = esc_html($owner);
5394
5395        #header
5396        my $alt_url;
5397        if (defined $file_name) {
5398                $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
5399        } elsif (defined $hash) {
5400                $alt_url = href(-full=>1, action=>"log", hash=>$hash);
5401        } else {
5402                $alt_url = href(-full=>1, action=>"summary");
5403        }
5404        print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
5405        if ($format eq 'rss') {
5406                print <<XML;
5407<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
5408<channel>
5409XML
5410                print "<title>$title</title>\n" .
5411                      "<link>$alt_url</link>\n" .
5412                      "<description>$descr</description>\n" .
5413                      "<language>en</language>\n";
5414        } elsif ($format eq 'atom') {
5415                print <<XML;
5416<feed xmlns="http://www.w3.org/2005/Atom">
5417XML
5418                print "<title>$title</title>\n" .
5419                      "<subtitle>$descr</subtitle>\n" .
5420                      '<link rel="alternate" type="text/html" href="' .
5421                      $alt_url . '" />' . "\n" .
5422                      '<link rel="self" type="' . $content_type . '" href="' .
5423                      $cgi->self_url() . '" />' . "\n" .
5424                      "<id>" . href(-full=>1) . "</id>\n" .
5425                      # use project owner for feed author
5426                      "<author><name>$owner</name></author>\n";
5427                if (defined $favicon) {
5428                        print "<icon>" . esc_url($favicon) . "</icon>\n";
5429                }
5430                if (defined $logo_url) {
5431                        # not twice as wide as tall: 72 x 27 pixels
5432                        print "<logo>" . esc_url($logo) . "</logo>\n";
5433                }
5434                if (! %latest_date) {
5435                        # dummy date to keep the feed valid until commits trickle in:
5436                        print "<updated>1970-01-01T00:00:00Z</updated>\n";
5437                } else {
5438                        print "<updated>$latest_date{'iso-8601'}</updated>\n";
5439                }
5440        }
5441
5442        # contents
5443        for (my $i = 0; $i <= $#commitlist; $i++) {
5444                my %co = %{$commitlist[$i]};
5445                my $commit = $co{'id'};
5446                # we read 150, we always show 30 and the ones more recent than 48 hours
5447                if (($i >= 20) && ((time - $co{'author_epoch'}) > 48*60*60)) {
5448                        last;
5449                }
5450                my %cd = parse_date($co{'author_epoch'});
5451
5452                # get list of changed files
5453                open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
5454                        $co{'parent'} || "--root",
5455                        $co{'id'}, "--", (defined $file_name ? $file_name : ())
5456                        or next;
5457                my @difftree = map { chomp; $_ } <$fd>;
5458                close $fd
5459                        or next;
5460
5461                # print element (entry, item)
5462                my $co_url = href(-full=>1, action=>"commit", hash=>$commit);
5463                if ($format eq 'rss') {
5464                        print "<item>\n" .
5465                              "<title>" . esc_html($co{'title'}) . "</title>\n" .
5466                              "<author>" . esc_html($co{'author'}) . "</author>\n" .
5467                              "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
5468                              "<guid isPermaLink=\"true\">$co_url</guid>\n" .
5469                              "<link>$co_url</link>\n" .
5470                              "<description>" . esc_html($co{'title'}) . "</description>\n" .
5471                              "<content:encoded>" .
5472                              "<![CDATA[\n";
5473                } elsif ($format eq 'atom') {
5474                        print "<entry>\n" .
5475                              "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
5476                              "<updated>$cd{'iso-8601'}</updated>\n" .
5477                              "<author>\n" .
5478                              "  <name>" . esc_html($co{'author_name'}) . "</name>\n";
5479                        if ($co{'author_email'}) {
5480                                print "  <email>" . esc_html($co{'author_email'}) . "</email>\n";
5481                        }
5482                        print "</author>\n" .
5483                              # use committer for contributor
5484                              "<contributor>\n" .
5485                              "  <name>" . esc_html($co{'committer_name'}) . "</name>\n";
5486                        if ($co{'committer_email'}) {
5487                                print "  <email>" . esc_html($co{'committer_email'}) . "</email>\n";
5488                        }
5489                        print "</contributor>\n" .
5490                              "<published>$cd{'iso-8601'}</published>\n" .
5491                              "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
5492                              "<id>$co_url</id>\n" .
5493                              "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
5494                              "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
5495                }
5496                my $comment = $co{'comment'};
5497                print "<pre>\n";
5498                foreach my $line (@$comment) {
5499                        $line = esc_html($line);
5500                        print "$line\n";
5501                }
5502                print "</pre><ul>\n";
5503                foreach my $difftree_line (@difftree) {
5504                        my %difftree = parse_difftree_raw_line($difftree_line);
5505                        next if !$difftree{'from_id'};
5506
5507                        my $file = $difftree{'file'} || $difftree{'to_file'};
5508
5509                        print "<li>" .
5510                              "[" .
5511                              $cgi->a({-href => href(-full=>1, action=>"blobdiff",
5512                                                     hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
5513                                                     hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
5514                                                     file_name=>$file, file_parent=>$difftree{'from_file'}),
5515                                      -title => "diff"}, 'D');
5516                        if ($have_blame) {
5517                                print $cgi->a({-href => href(-full=>1, action=>"blame",
5518                                                             file_name=>$file, hash_base=>$commit),
5519                                              -title => "blame"}, 'B');
5520                        }
5521                        # if this is not a feed of a file history
5522                        if (!defined $file_name || $file_name ne $file) {
5523                                print $cgi->a({-href => href(-full=>1, action=>"history",
5524                                                             file_name=>$file, hash=>$commit),
5525                                              -title => "history"}, 'H');
5526                        }
5527                        $file = esc_path($file);
5528                        print "] ".
5529                              "$file</li>\n";
5530                }
5531                if ($format eq 'rss') {
5532                        print "</ul>]]>\n" .
5533                              "</content:encoded>\n" .
5534                              "</item>\n";
5535                } elsif ($format eq 'atom') {
5536                        print "</ul>\n</div>\n" .
5537                              "</content>\n" .
5538                              "</entry>\n";
5539                }
5540        }
5541
5542        # end of feed
5543        if ($format eq 'rss') {
5544                print "</channel>\n</rss>\n";
5545        }       elsif ($format eq 'atom') {
5546                print "</feed>\n";
5547        }
5548}
5549
5550sub git_rss {
5551        git_feed('rss');
5552}
5553
5554sub git_atom {
5555        git_feed('atom');
5556}
5557
5558sub git_opml {
5559        my @list = git_get_projects_list();
5560
5561        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
5562        print <<XML;
5563<?xml version="1.0" encoding="utf-8"?>
5564<opml version="1.0">
5565<head>
5566  <title>$site_name OPML Export</title>
5567</head>
5568<body>
5569<outline text="git RSS feeds">
5570XML
5571
5572        foreach my $pr (@list) {
5573                my %proj = %$pr;
5574                my $head = git_get_head_hash($proj{'path'});
5575                if (!defined $head) {
5576                        next;
5577                }
5578                $git_dir = "$projectroot/$proj{'path'}";
5579                my %co = parse_commit($head);
5580                if (!%co) {
5581                        next;
5582                }
5583
5584                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
5585                my $rss  = "$my_url?p=$proj{'path'};a=rss";
5586                my $html = "$my_url?p=$proj{'path'};a=summary";
5587                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
5588        }
5589        print <<XML;
5590</outline>
5591</body>
5592</opml>
5593XML
5594}