gitweb / gitweb.perlon commit gitweb: Silence 'Variable VAR may be unavailable' warnings (ee1d8ee)
   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                                # global variables
1524                                our $project_maxdepth;
1525                                our $projectroot;
1526                                # skip project-list toplevel, if we get it.
1527                                return if (m!^[/.]$!);
1528                                # only directories can be git repositories
1529                                return unless (-d $_);
1530                                # don't traverse too deep (Find is super slow on os x)
1531                                if (($File::Find::name =~ tr!/!!) - $pfxdepth > $project_maxdepth) {
1532                                        $File::Find::prune = 1;
1533                                        return;
1534                                }
1535
1536                                my $subdir = substr($File::Find::name, $pfxlen + 1);
1537                                # we check related file in $projectroot
1538                                if ($check_forks and $subdir =~ m#/.#) {
1539                                        $File::Find::prune = 1;
1540                                } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1541                                        push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1542                                        $File::Find::prune = 1;
1543                                }
1544                        },
1545                }, "$dir");
1546
1547        } elsif (-f $projects_list) {
1548                # read from file(url-encoded):
1549                # 'git%2Fgit.git Linus+Torvalds'
1550                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1551                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1552                my %paths;
1553                open my ($fd), $projects_list or return;
1554        PROJECT:
1555                while (my $line = <$fd>) {
1556                        chomp $line;
1557                        my ($path, $owner) = split ' ', $line;
1558                        $path = unescape($path);
1559                        $owner = unescape($owner);
1560                        if (!defined $path) {
1561                                next;
1562                        }
1563                        if ($filter ne '') {
1564                                # looking for forks;
1565                                my $pfx = substr($path, 0, length($filter));
1566                                if ($pfx ne $filter) {
1567                                        next PROJECT;
1568                                }
1569                                my $sfx = substr($path, length($filter));
1570                                if ($sfx !~ /^\/.*\.git$/) {
1571                                        next PROJECT;
1572                                }
1573                        } elsif ($check_forks) {
1574                        PATH:
1575                                foreach my $filter (keys %paths) {
1576                                        # looking for forks;
1577                                        my $pfx = substr($path, 0, length($filter));
1578                                        if ($pfx ne $filter) {
1579                                                next PATH;
1580                                        }
1581                                        my $sfx = substr($path, length($filter));
1582                                        if ($sfx !~ /^\/.*\.git$/) {
1583                                                next PATH;
1584                                        }
1585                                        # is a fork, don't include it in
1586                                        # the list
1587                                        next PROJECT;
1588                                }
1589                        }
1590                        if (check_export_ok("$projectroot/$path")) {
1591                                my $pr = {
1592                                        path => $path,
1593                                        owner => to_utf8($owner),
1594                                };
1595                                push @list, $pr;
1596                                (my $forks_path = $path) =~ s/\.git$//;
1597                                $paths{$forks_path}++;
1598                        }
1599                }
1600                close $fd;
1601        }
1602        return @list;
1603}
1604
1605our $gitweb_project_owner = undef;
1606sub git_get_project_list_from_file {
1607
1608        return if (defined $gitweb_project_owner);
1609
1610        $gitweb_project_owner = {};
1611        # read from file (url-encoded):
1612        # 'git%2Fgit.git Linus+Torvalds'
1613        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1614        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1615        if (-f $projects_list) {
1616                open (my $fd , $projects_list);
1617                while (my $line = <$fd>) {
1618                        chomp $line;
1619                        my ($pr, $ow) = split ' ', $line;
1620                        $pr = unescape($pr);
1621                        $ow = unescape($ow);
1622                        $gitweb_project_owner->{$pr} = to_utf8($ow);
1623                }
1624                close $fd;
1625        }
1626}
1627
1628sub git_get_project_owner {
1629        my $project = shift;
1630        my $owner;
1631
1632        return undef unless $project;
1633
1634        if (!defined $gitweb_project_owner) {
1635                git_get_project_list_from_file();
1636        }
1637
1638        if (exists $gitweb_project_owner->{$project}) {
1639                $owner = $gitweb_project_owner->{$project};
1640        }
1641        if (!defined $owner) {
1642                $owner = get_file_owner("$projectroot/$project");
1643        }
1644
1645        return $owner;
1646}
1647
1648sub git_get_last_activity {
1649        my ($path) = @_;
1650        my $fd;
1651
1652        $git_dir = "$projectroot/$path";
1653        open($fd, "-|", git_cmd(), 'for-each-ref',
1654             '--format=%(committer)',
1655             '--sort=-committerdate',
1656             '--count=1',
1657             'refs/heads') or return;
1658        my $most_recent = <$fd>;
1659        close $fd or return;
1660        if (defined $most_recent &&
1661            $most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1662                my $timestamp = $1;
1663                my $age = time - $timestamp;
1664                return ($age, age_string($age));
1665        }
1666        return (undef, undef);
1667}
1668
1669sub git_get_references {
1670        my $type = shift || "";
1671        my %refs;
1672        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
1673        # c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
1674        open my $fd, "-|", git_cmd(), "show-ref", "--dereference",
1675                ($type ? ("--", "refs/$type") : ()) # use -- <pattern> if $type
1676                or return;
1677
1678        while (my $line = <$fd>) {
1679                chomp $line;
1680                if ($line =~ m!^([0-9a-fA-F]{40})\srefs/($type/?[^^]+)!) {
1681                        if (defined $refs{$1}) {
1682                                push @{$refs{$1}}, $2;
1683                        } else {
1684                                $refs{$1} = [ $2 ];
1685                        }
1686                }
1687        }
1688        close $fd or return;
1689        return \%refs;
1690}
1691
1692sub git_get_rev_name_tags {
1693        my $hash = shift || return undef;
1694
1695        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1696                or return;
1697        my $name_rev = <$fd>;
1698        close $fd;
1699
1700        if ($name_rev =~ m|^$hash tags/(.*)$|) {
1701                return $1;
1702        } else {
1703                # catches also '$hash undefined' output
1704                return undef;
1705        }
1706}
1707
1708## ----------------------------------------------------------------------
1709## parse to hash functions
1710
1711sub parse_date {
1712        my $epoch = shift;
1713        my $tz = shift || "-0000";
1714
1715        my %date;
1716        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1717        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1718        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1719        $date{'hour'} = $hour;
1720        $date{'minute'} = $min;
1721        $date{'mday'} = $mday;
1722        $date{'day'} = $days[$wday];
1723        $date{'month'} = $months[$mon];
1724        $date{'rfc2822'}   = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1725                             $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1726        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1727                             $mday, $months[$mon], $hour ,$min;
1728        $date{'iso-8601'}  = sprintf "%04d-%02d-%02dT%02d:%02d:%02dZ",
1729                             1900+$year, $mon, $mday, $hour ,$min, $sec;
1730
1731        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1732        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1733        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1734        $date{'hour_local'} = $hour;
1735        $date{'minute_local'} = $min;
1736        $date{'tz_local'} = $tz;
1737        $date{'iso-tz'} = sprintf("%04d-%02d-%02d %02d:%02d:%02d %s",
1738                                  1900+$year, $mon+1, $mday,
1739                                  $hour, $min, $sec, $tz);
1740        return %date;
1741}
1742
1743sub parse_tag {
1744        my $tag_id = shift;
1745        my %tag;
1746        my @comment;
1747
1748        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1749        $tag{'id'} = $tag_id;
1750        while (my $line = <$fd>) {
1751                chomp $line;
1752                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1753                        $tag{'object'} = $1;
1754                } elsif ($line =~ m/^type (.+)$/) {
1755                        $tag{'type'} = $1;
1756                } elsif ($line =~ m/^tag (.+)$/) {
1757                        $tag{'name'} = $1;
1758                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1759                        $tag{'author'} = $1;
1760                        $tag{'epoch'} = $2;
1761                        $tag{'tz'} = $3;
1762                } elsif ($line =~ m/--BEGIN/) {
1763                        push @comment, $line;
1764                        last;
1765                } elsif ($line eq "") {
1766                        last;
1767                }
1768        }
1769        push @comment, <$fd>;
1770        $tag{'comment'} = \@comment;
1771        close $fd or return;
1772        if (!defined $tag{'name'}) {
1773                return
1774        };
1775        return %tag
1776}
1777
1778sub parse_commit_text {
1779        my ($commit_text, $withparents) = @_;
1780        my @commit_lines = split '\n', $commit_text;
1781        my %co;
1782
1783        pop @commit_lines; # Remove '\0'
1784
1785        if (! @commit_lines) {
1786                return;
1787        }
1788
1789        my $header = shift @commit_lines;
1790        if ($header !~ m/^[0-9a-fA-F]{40}/) {
1791                return;
1792        }
1793        ($co{'id'}, my @parents) = split ' ', $header;
1794        while (my $line = shift @commit_lines) {
1795                last if $line eq "\n";
1796                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1797                        $co{'tree'} = $1;
1798                } elsif ((!defined $withparents) && ($line =~ m/^parent ([0-9a-fA-F]{40})$/)) {
1799                        push @parents, $1;
1800                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1801                        $co{'author'} = $1;
1802                        $co{'author_epoch'} = $2;
1803                        $co{'author_tz'} = $3;
1804                        if ($co{'author'} =~ m/^([^<]+) <([^>]*)>/) {
1805                                $co{'author_name'}  = $1;
1806                                $co{'author_email'} = $2;
1807                        } else {
1808                                $co{'author_name'} = $co{'author'};
1809                        }
1810                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1811                        $co{'committer'} = $1;
1812                        $co{'committer_epoch'} = $2;
1813                        $co{'committer_tz'} = $3;
1814                        $co{'committer_name'} = $co{'committer'};
1815                        if ($co{'committer'} =~ m/^([^<]+) <([^>]*)>/) {
1816                                $co{'committer_name'}  = $1;
1817                                $co{'committer_email'} = $2;
1818                        } else {
1819                                $co{'committer_name'} = $co{'committer'};
1820                        }
1821                }
1822        }
1823        if (!defined $co{'tree'}) {
1824                return;
1825        };
1826        $co{'parents'} = \@parents;
1827        $co{'parent'} = $parents[0];
1828
1829        foreach my $title (@commit_lines) {
1830                $title =~ s/^    //;
1831                if ($title ne "") {
1832                        $co{'title'} = chop_str($title, 80, 5);
1833                        # remove leading stuff of merges to make the interesting part visible
1834                        if (length($title) > 50) {
1835                                $title =~ s/^Automatic //;
1836                                $title =~ s/^merge (of|with) /Merge ... /i;
1837                                if (length($title) > 50) {
1838                                        $title =~ s/(http|rsync):\/\///;
1839                                }
1840                                if (length($title) > 50) {
1841                                        $title =~ s/(master|www|rsync)\.//;
1842                                }
1843                                if (length($title) > 50) {
1844                                        $title =~ s/kernel.org:?//;
1845                                }
1846                                if (length($title) > 50) {
1847                                        $title =~ s/\/pub\/scm//;
1848                                }
1849                        }
1850                        $co{'title_short'} = chop_str($title, 50, 5);
1851                        last;
1852                }
1853        }
1854        if ($co{'title'} eq "") {
1855                $co{'title'} = $co{'title_short'} = '(no commit message)';
1856        }
1857        # remove added spaces
1858        foreach my $line (@commit_lines) {
1859                $line =~ s/^    //;
1860        }
1861        $co{'comment'} = \@commit_lines;
1862
1863        my $age = time - $co{'committer_epoch'};
1864        $co{'age'} = $age;
1865        $co{'age_string'} = age_string($age);
1866        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1867        if ($age > 60*60*24*7*2) {
1868                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1869                $co{'age_string_age'} = $co{'age_string'};
1870        } else {
1871                $co{'age_string_date'} = $co{'age_string'};
1872                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1873        }
1874        return %co;
1875}
1876
1877sub parse_commit {
1878        my ($commit_id) = @_;
1879        my %co;
1880
1881        local $/ = "\0";
1882
1883        open my $fd, "-|", git_cmd(), "rev-list",
1884                "--parents",
1885                "--header",
1886                "--max-count=1",
1887                $commit_id,
1888                "--",
1889                or die_error(undef, "Open git-rev-list failed");
1890        %co = parse_commit_text(<$fd>, 1);
1891        close $fd;
1892
1893        return %co;
1894}
1895
1896sub parse_commits {
1897        my ($commit_id, $maxcount, $skip, $arg, $filename) = @_;
1898        my @cos;
1899
1900        $maxcount ||= 1;
1901        $skip ||= 0;
1902
1903        local $/ = "\0";
1904
1905        open my $fd, "-|", git_cmd(), "rev-list",
1906                "--header",
1907                ($arg ? ($arg) : ()),
1908                ("--max-count=" . $maxcount),
1909                ("--skip=" . $skip),
1910                @extra_options,
1911                $commit_id,
1912                "--",
1913                ($filename ? ($filename) : ())
1914                or die_error(undef, "Open git-rev-list failed");
1915        while (my $line = <$fd>) {
1916                my %co = parse_commit_text($line);
1917                push @cos, \%co;
1918        }
1919        close $fd;
1920
1921        return wantarray ? @cos : \@cos;
1922}
1923
1924# parse ref from ref_file, given by ref_id, with given type
1925sub parse_ref {
1926        my $ref_file = shift;
1927        my $ref_id = shift;
1928        my $type = shift || git_get_type($ref_id);
1929        my %ref_item;
1930
1931        $ref_item{'type'} = $type;
1932        $ref_item{'id'} = $ref_id;
1933        $ref_item{'epoch'} = 0;
1934        $ref_item{'age'} = "unknown";
1935        if ($type eq "tag") {
1936                my %tag = parse_tag($ref_id);
1937                $ref_item{'comment'} = $tag{'comment'};
1938                if ($tag{'type'} eq "commit") {
1939                        my %co = parse_commit($tag{'object'});
1940                        $ref_item{'epoch'} = $co{'committer_epoch'};
1941                        $ref_item{'age'} = $co{'age_string'};
1942                } elsif (defined($tag{'epoch'})) {
1943                        my $age = time - $tag{'epoch'};
1944                        $ref_item{'epoch'} = $tag{'epoch'};
1945                        $ref_item{'age'} = age_string($age);
1946                }
1947                $ref_item{'reftype'} = $tag{'type'};
1948                $ref_item{'name'} = $tag{'name'};
1949                $ref_item{'refid'} = $tag{'object'};
1950        } elsif ($type eq "commit"){
1951                my %co = parse_commit($ref_id);
1952                $ref_item{'reftype'} = "commit";
1953                $ref_item{'name'} = $ref_file;
1954                $ref_item{'title'} = $co{'title'};
1955                $ref_item{'refid'} = $ref_id;
1956                $ref_item{'epoch'} = $co{'committer_epoch'};
1957                $ref_item{'age'} = $co{'age_string'};
1958        } else {
1959                $ref_item{'reftype'} = $type;
1960                $ref_item{'name'} = $ref_file;
1961                $ref_item{'refid'} = $ref_id;
1962        }
1963
1964        return %ref_item;
1965}
1966
1967# parse line of git-diff-tree "raw" output
1968sub parse_difftree_raw_line {
1969        my $line = shift;
1970        my %res;
1971
1972        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1973        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1974        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1975                $res{'from_mode'} = $1;
1976                $res{'to_mode'} = $2;
1977                $res{'from_id'} = $3;
1978                $res{'to_id'} = $4;
1979                $res{'status'} = $5;
1980                $res{'similarity'} = $6;
1981                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1982                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1983                } else {
1984                        $res{'file'} = unquote($7);
1985                }
1986        }
1987        # '::100755 100755 100755 60e79ca1b01bc8b057abe17ddab484699a7f5fdb 94067cc5f73388f33722d52ae02f44692bc07490 94067cc5f73388f33722d52ae02f44692bc07490 MR git-gui/git-gui.sh'
1988        # combined diff (for merge commit)
1989        elsif ($line =~ s/^(::+)((?:[0-7]{6} )+)((?:[0-9a-fA-F]{40} )+)([a-zA-Z]+)\t(.*)$//) {
1990                $res{'nparents'}  = length($1);
1991                $res{'from_mode'} = [ split(' ', $2) ];
1992                $res{'to_mode'} = pop @{$res{'from_mode'}};
1993                $res{'from_id'} = [ split(' ', $3) ];
1994                $res{'to_id'} = pop @{$res{'from_id'}};
1995                $res{'status'} = [ split('', $4) ];
1996                $res{'to_file'} = unquote($5);
1997        }
1998        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1999        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
2000                $res{'commit'} = $1;
2001        }
2002
2003        return wantarray ? %res : \%res;
2004}
2005
2006# parse line of git-ls-tree output
2007sub parse_ls_tree_line ($;%) {
2008        my $line = shift;
2009        my %opts = @_;
2010        my %res;
2011
2012        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
2013        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
2014
2015        $res{'mode'} = $1;
2016        $res{'type'} = $2;
2017        $res{'hash'} = $3;
2018        if ($opts{'-z'}) {
2019                $res{'name'} = $4;
2020        } else {
2021                $res{'name'} = unquote($4);
2022        }
2023
2024        return wantarray ? %res : \%res;
2025}
2026
2027# generates _two_ hashes, references to which are passed as 2 and 3 argument
2028sub parse_from_to_diffinfo {
2029        my ($diffinfo, $from, $to, @parents) = @_;
2030
2031        if ($diffinfo->{'nparents'}) {
2032                # combined diff
2033                $from->{'file'} = [];
2034                $from->{'href'} = [];
2035                fill_from_file_info($diffinfo, @parents)
2036                        unless exists $diffinfo->{'from_file'};
2037                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
2038                        $from->{'file'}[$i] = $diffinfo->{'from_file'}[$i] || $diffinfo->{'to_file'};
2039                        if ($diffinfo->{'status'}[$i] ne "A") { # not new (added) file
2040                                $from->{'href'}[$i] = href(action=>"blob",
2041                                                           hash_base=>$parents[$i],
2042                                                           hash=>$diffinfo->{'from_id'}[$i],
2043                                                           file_name=>$from->{'file'}[$i]);
2044                        } else {
2045                                $from->{'href'}[$i] = undef;
2046                        }
2047                }
2048        } else {
2049                $from->{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
2050                if ($diffinfo->{'status'} ne "A") { # not new (added) file
2051                        $from->{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2052                                               hash=>$diffinfo->{'from_id'},
2053                                               file_name=>$from->{'file'});
2054                } else {
2055                        delete $from->{'href'};
2056                }
2057        }
2058
2059        $to->{'file'} = $diffinfo->{'to_file'} || $diffinfo->{'file'};
2060        if (!is_deleted($diffinfo)) { # file exists in result
2061                $to->{'href'} = href(action=>"blob", hash_base=>$hash,
2062                                     hash=>$diffinfo->{'to_id'},
2063                                     file_name=>$to->{'file'});
2064        } else {
2065                delete $to->{'href'};
2066        }
2067}
2068
2069## ......................................................................
2070## parse to array of hashes functions
2071
2072sub git_get_heads_list {
2073        my $limit = shift;
2074        my @headslist;
2075
2076        open my $fd, '-|', git_cmd(), 'for-each-ref',
2077                ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
2078                '--format=%(objectname) %(refname) %(subject)%00%(committer)',
2079                'refs/heads'
2080                or return;
2081        while (my $line = <$fd>) {
2082                my %ref_item;
2083
2084                chomp $line;
2085                my ($refinfo, $committerinfo) = split(/\0/, $line);
2086                my ($hash, $name, $title) = split(' ', $refinfo, 3);
2087                my ($committer, $epoch, $tz) =
2088                        ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
2089                $name =~ s!^refs/heads/!!;
2090
2091                $ref_item{'name'}  = $name;
2092                $ref_item{'id'}    = $hash;
2093                $ref_item{'title'} = $title || '(no commit message)';
2094                $ref_item{'epoch'} = $epoch;
2095                if ($epoch) {
2096                        $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
2097                } else {
2098                        $ref_item{'age'} = "unknown";
2099                }
2100
2101                push @headslist, \%ref_item;
2102        }
2103        close $fd;
2104
2105        return wantarray ? @headslist : \@headslist;
2106}
2107
2108sub git_get_tags_list {
2109        my $limit = shift;
2110        my @tagslist;
2111
2112        open my $fd, '-|', git_cmd(), 'for-each-ref',
2113                ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
2114                '--format=%(objectname) %(objecttype) %(refname) '.
2115                '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
2116                'refs/tags'
2117                or return;
2118        while (my $line = <$fd>) {
2119                my %ref_item;
2120
2121                chomp $line;
2122                my ($refinfo, $creatorinfo) = split(/\0/, $line);
2123                my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
2124                my ($creator, $epoch, $tz) =
2125                        ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
2126                $name =~ s!^refs/tags/!!;
2127
2128                $ref_item{'type'} = $type;
2129                $ref_item{'id'} = $id;
2130                $ref_item{'name'} = $name;
2131                if ($type eq "tag") {
2132                        $ref_item{'subject'} = $title;
2133                        $ref_item{'reftype'} = $reftype;
2134                        $ref_item{'refid'}   = $refid;
2135                } else {
2136                        $ref_item{'reftype'} = $type;
2137                        $ref_item{'refid'}   = $id;
2138                }
2139
2140                if ($type eq "tag" || $type eq "commit") {
2141                        $ref_item{'epoch'} = $epoch;
2142                        if ($epoch) {
2143                                $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
2144                        } else {
2145                                $ref_item{'age'} = "unknown";
2146                        }
2147                }
2148
2149                push @tagslist, \%ref_item;
2150        }
2151        close $fd;
2152
2153        return wantarray ? @tagslist : \@tagslist;
2154}
2155
2156## ----------------------------------------------------------------------
2157## filesystem-related functions
2158
2159sub get_file_owner {
2160        my $path = shift;
2161
2162        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
2163        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
2164        if (!defined $gcos) {
2165                return undef;
2166        }
2167        my $owner = $gcos;
2168        $owner =~ s/[,;].*$//;
2169        return to_utf8($owner);
2170}
2171
2172## ......................................................................
2173## mimetype related functions
2174
2175sub mimetype_guess_file {
2176        my $filename = shift;
2177        my $mimemap = shift;
2178        -r $mimemap or return undef;
2179
2180        my %mimemap;
2181        open(MIME, $mimemap) or return undef;
2182        while (<MIME>) {
2183                next if m/^#/; # skip comments
2184                my ($mime, $exts) = split(/\t+/);
2185                if (defined $exts) {
2186                        my @exts = split(/\s+/, $exts);
2187                        foreach my $ext (@exts) {
2188                                $mimemap{$ext} = $mime;
2189                        }
2190                }
2191        }
2192        close(MIME);
2193
2194        $filename =~ /\.([^.]*)$/;
2195        return $mimemap{$1};
2196}
2197
2198sub mimetype_guess {
2199        my $filename = shift;
2200        my $mime;
2201        $filename =~ /\./ or return undef;
2202
2203        if ($mimetypes_file) {
2204                my $file = $mimetypes_file;
2205                if ($file !~ m!^/!) { # if it is relative path
2206                        # it is relative to project
2207                        $file = "$projectroot/$project/$file";
2208                }
2209                $mime = mimetype_guess_file($filename, $file);
2210        }
2211        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
2212        return $mime;
2213}
2214
2215sub blob_mimetype {
2216        my $fd = shift;
2217        my $filename = shift;
2218
2219        if ($filename) {
2220                my $mime = mimetype_guess($filename);
2221                $mime and return $mime;
2222        }
2223
2224        # just in case
2225        return $default_blob_plain_mimetype unless $fd;
2226
2227        if (-T $fd) {
2228                return 'text/plain' .
2229                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
2230        } elsif (! $filename) {
2231                return 'application/octet-stream';
2232        } elsif ($filename =~ m/\.png$/i) {
2233                return 'image/png';
2234        } elsif ($filename =~ m/\.gif$/i) {
2235                return 'image/gif';
2236        } elsif ($filename =~ m/\.jpe?g$/i) {
2237                return 'image/jpeg';
2238        } else {
2239                return 'application/octet-stream';
2240        }
2241}
2242
2243## ======================================================================
2244## functions printing HTML: header, footer, error page
2245
2246sub git_header_html {
2247        my $status = shift || "200 OK";
2248        my $expires = shift;
2249
2250        my $title = "$site_name";
2251        if (defined $project) {
2252                $title .= " - " . to_utf8($project);
2253                if (defined $action) {
2254                        $title .= "/$action";
2255                        if (defined $file_name) {
2256                                $title .= " - " . esc_path($file_name);
2257                                if ($action eq "tree" && $file_name !~ m|/$|) {
2258                                        $title .= "/";
2259                                }
2260                        }
2261                }
2262        }
2263        my $content_type;
2264        # require explicit support from the UA if we are to send the page as
2265        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
2266        # we have to do this because MSIE sometimes globs '*/*', pretending to
2267        # support xhtml+xml but choking when it gets what it asked for.
2268        if (defined $cgi->http('HTTP_ACCEPT') &&
2269            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
2270            $cgi->Accept('application/xhtml+xml') != 0) {
2271                $content_type = 'application/xhtml+xml';
2272        } else {
2273                $content_type = 'text/html';
2274        }
2275        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
2276                           -status=> $status, -expires => $expires);
2277        my $mod_perl_version = $ENV{'MOD_PERL'} ? " $ENV{'MOD_PERL'}" : '';
2278        print <<EOF;
2279<?xml version="1.0" encoding="utf-8"?>
2280<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
2281<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
2282<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
2283<!-- git core binaries version $git_version -->
2284<head>
2285<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
2286<meta name="generator" content="gitweb/$version git/$git_version$mod_perl_version"/>
2287<meta name="robots" content="index, nofollow"/>
2288<title>$title</title>
2289EOF
2290# print out each stylesheet that exist
2291        if (defined $stylesheet) {
2292#provides backwards capability for those people who define style sheet in a config file
2293                print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
2294        } else {
2295                foreach my $stylesheet (@stylesheets) {
2296                        next unless $stylesheet;
2297                        print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
2298                }
2299        }
2300        if (defined $project) {
2301                printf('<link rel="alternate" title="%s log RSS feed" '.
2302                       'href="%s" type="application/rss+xml" />'."\n",
2303                       esc_param($project), href(action=>"rss"));
2304                printf('<link rel="alternate" title="%s log RSS feed (no merges)" '.
2305                       'href="%s" type="application/rss+xml" />'."\n",
2306                       esc_param($project), href(action=>"rss",
2307                                                 extra_options=>"--no-merges"));
2308                printf('<link rel="alternate" title="%s log Atom feed" '.
2309                       'href="%s" type="application/atom+xml" />'."\n",
2310                       esc_param($project), href(action=>"atom"));
2311                printf('<link rel="alternate" title="%s log Atom feed (no merges)" '.
2312                       'href="%s" type="application/atom+xml" />'."\n",
2313                       esc_param($project), href(action=>"atom",
2314                                                 extra_options=>"--no-merges"));
2315        } else {
2316                printf('<link rel="alternate" title="%s projects list" '.
2317                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
2318                       $site_name, href(project=>undef, action=>"project_index"));
2319                printf('<link rel="alternate" title="%s projects feeds" '.
2320                       'href="%s" type="text/x-opml"/>'."\n",
2321                       $site_name, href(project=>undef, action=>"opml"));
2322        }
2323        if (defined $favicon) {
2324                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
2325        }
2326
2327        print "</head>\n" .
2328              "<body>\n";
2329
2330        if (-f $site_header) {
2331                open (my $fd, $site_header);
2332                print <$fd>;
2333                close $fd;
2334        }
2335
2336        print "<div class=\"page_header\">\n" .
2337              $cgi->a({-href => esc_url($logo_url),
2338                       -title => $logo_label},
2339                      qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
2340        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
2341        if (defined $project) {
2342                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
2343                if (defined $action) {
2344                        print " / $action";
2345                }
2346                print "\n";
2347        }
2348        print "</div>\n";
2349
2350        my ($have_search) = gitweb_check_feature('search');
2351        if ((defined $project) && ($have_search)) {
2352                if (!defined $searchtext) {
2353                        $searchtext = "";
2354                }
2355                my $search_hash;
2356                if (defined $hash_base) {
2357                        $search_hash = $hash_base;
2358                } elsif (defined $hash) {
2359                        $search_hash = $hash;
2360                } else {
2361                        $search_hash = "HEAD";
2362                }
2363                my $action = $my_uri;
2364                my ($use_pathinfo) = gitweb_check_feature('pathinfo');
2365                if ($use_pathinfo) {
2366                        $action .= "/$project";
2367                } else {
2368                        $cgi->param("p", $project);
2369                }
2370                $cgi->param("a", "search");
2371                $cgi->param("h", $search_hash);
2372                print $cgi->startform(-method => "get", -action => $action) .
2373                      "<div class=\"search\">\n" .
2374                      (!$use_pathinfo && $cgi->hidden(-name => "p") . "\n") .
2375                      $cgi->hidden(-name => "a") . "\n" .
2376                      $cgi->hidden(-name => "h") . "\n" .
2377                      $cgi->popup_menu(-name => 'st', -default => 'commit',
2378                                       -values => ['commit', 'grep', 'author', 'committer', 'pickaxe']) .
2379                      $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
2380                      " search:\n",
2381                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
2382                      "</div>" .
2383                      $cgi->end_form() . "\n";
2384        }
2385}
2386
2387sub git_footer_html {
2388        print "<div class=\"page_footer\">\n";
2389        if (defined $project) {
2390                my $descr = git_get_project_description($project);
2391                if (defined $descr) {
2392                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
2393                }
2394                print $cgi->a({-href => href(action=>"rss"),
2395                              -class => "rss_logo"}, "RSS") . " ";
2396                print $cgi->a({-href => href(action=>"atom"),
2397                              -class => "rss_logo"}, "Atom") . "\n";
2398        } else {
2399                print $cgi->a({-href => href(project=>undef, action=>"opml"),
2400                              -class => "rss_logo"}, "OPML") . " ";
2401                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
2402                              -class => "rss_logo"}, "TXT") . "\n";
2403        }
2404        print "</div>\n" ;
2405
2406        if (-f $site_footer) {
2407                open (my $fd, $site_footer);
2408                print <$fd>;
2409                close $fd;
2410        }
2411
2412        print "</body>\n" .
2413              "</html>";
2414}
2415
2416sub die_error {
2417        my $status = shift || "403 Forbidden";
2418        my $error = shift || "Malformed query, file missing or permission denied";
2419
2420        git_header_html($status);
2421        print <<EOF;
2422<div class="page_body">
2423<br /><br />
2424$status - $error
2425<br />
2426</div>
2427EOF
2428        git_footer_html();
2429        exit;
2430}
2431
2432## ----------------------------------------------------------------------
2433## functions printing or outputting HTML: navigation
2434
2435sub git_print_page_nav {
2436        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
2437        $extra = '' if !defined $extra; # pager or formats
2438
2439        my @navs = qw(summary shortlog log commit commitdiff tree);
2440        if ($suppress) {
2441                @navs = grep { $_ ne $suppress } @navs;
2442        }
2443
2444        my %arg = map { $_ => {action=>$_} } @navs;
2445        if (defined $head) {
2446                for (qw(commit commitdiff)) {
2447                        $arg{$_}{'hash'} = $head;
2448                }
2449                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
2450                        for (qw(shortlog log)) {
2451                                $arg{$_}{'hash'} = $head;
2452                        }
2453                }
2454        }
2455        $arg{'tree'}{'hash'} = $treehead if defined $treehead;
2456        $arg{'tree'}{'hash_base'} = $treebase if defined $treebase;
2457
2458        print "<div class=\"page_nav\">\n" .
2459                (join " | ",
2460                 map { $_ eq $current ?
2461                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
2462                 } @navs);
2463        print "<br/>\n$extra<br/>\n" .
2464              "</div>\n";
2465}
2466
2467sub format_paging_nav {
2468        my ($action, $hash, $head, $page, $nrevs) = @_;
2469        my $paging_nav;
2470
2471
2472        if ($hash ne $head || $page) {
2473                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
2474        } else {
2475                $paging_nav .= "HEAD";
2476        }
2477
2478        if ($page > 0) {
2479                $paging_nav .= " &sdot; " .
2480                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
2481                                 -accesskey => "p", -title => "Alt-p"}, "prev");
2482        } else {
2483                $paging_nav .= " &sdot; prev";
2484        }
2485
2486        if ($nrevs >= (100 * ($page+1)-1)) {
2487                $paging_nav .= " &sdot; " .
2488                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
2489                                 -accesskey => "n", -title => "Alt-n"}, "next");
2490        } else {
2491                $paging_nav .= " &sdot; next";
2492        }
2493
2494        return $paging_nav;
2495}
2496
2497## ......................................................................
2498## functions printing or outputting HTML: div
2499
2500sub git_print_header_div {
2501        my ($action, $title, $hash, $hash_base) = @_;
2502        my %args = ();
2503
2504        $args{'action'} = $action;
2505        $args{'hash'} = $hash if $hash;
2506        $args{'hash_base'} = $hash_base if $hash_base;
2507
2508        print "<div class=\"header\">\n" .
2509              $cgi->a({-href => href(%args), -class => "title"},
2510              $title ? $title : $action) .
2511              "\n</div>\n";
2512}
2513
2514#sub git_print_authorship (\%) {
2515sub git_print_authorship {
2516        my $co = shift;
2517
2518        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
2519        print "<div class=\"author_date\">" .
2520              esc_html($co->{'author_name'}) .
2521              " [$ad{'rfc2822'}";
2522        if ($ad{'hour_local'} < 6) {
2523                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2524                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2525        } else {
2526                printf(" (%02d:%02d %s)",
2527                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2528        }
2529        print "]</div>\n";
2530}
2531
2532sub git_print_page_path {
2533        my $name = shift;
2534        my $type = shift;
2535        my $hb = shift;
2536
2537
2538        print "<div class=\"page_path\">";
2539        print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
2540                      -title => 'tree root'}, to_utf8("[$project]"));
2541        print " / ";
2542        if (defined $name) {
2543                my @dirname = split '/', $name;
2544                my $basename = pop @dirname;
2545                my $fullname = '';
2546
2547                foreach my $dir (@dirname) {
2548                        $fullname .= ($fullname ? '/' : '') . $dir;
2549                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
2550                                                     hash_base=>$hb),
2551                                      -title => $fullname}, esc_path($dir));
2552                        print " / ";
2553                }
2554                if (defined $type && $type eq 'blob') {
2555                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
2556                                                     hash_base=>$hb),
2557                                      -title => $name}, esc_path($basename));
2558                } elsif (defined $type && $type eq 'tree') {
2559                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
2560                                                     hash_base=>$hb),
2561                                      -title => $name}, esc_path($basename));
2562                        print " / ";
2563                } else {
2564                        print esc_path($basename);
2565                }
2566        }
2567        print "<br/></div>\n";
2568}
2569
2570# sub git_print_log (\@;%) {
2571sub git_print_log ($;%) {
2572        my $log = shift;
2573        my %opts = @_;
2574
2575        if ($opts{'-remove_title'}) {
2576                # remove title, i.e. first line of log
2577                shift @$log;
2578        }
2579        # remove leading empty lines
2580        while (defined $log->[0] && $log->[0] eq "") {
2581                shift @$log;
2582        }
2583
2584        # print log
2585        my $signoff = 0;
2586        my $empty = 0;
2587        foreach my $line (@$log) {
2588                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2589                        $signoff = 1;
2590                        $empty = 0;
2591                        if (! $opts{'-remove_signoff'}) {
2592                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2593                                next;
2594                        } else {
2595                                # remove signoff lines
2596                                next;
2597                        }
2598                } else {
2599                        $signoff = 0;
2600                }
2601
2602                # print only one empty line
2603                # do not print empty line after signoff
2604                if ($line eq "") {
2605                        next if ($empty || $signoff);
2606                        $empty = 1;
2607                } else {
2608                        $empty = 0;
2609                }
2610
2611                print format_log_line_html($line) . "<br/>\n";
2612        }
2613
2614        if ($opts{'-final_empty_line'}) {
2615                # end with single empty line
2616                print "<br/>\n" unless $empty;
2617        }
2618}
2619
2620# return link target (what link points to)
2621sub git_get_link_target {
2622        my $hash = shift;
2623        my $link_target;
2624
2625        # read link
2626        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2627                or return;
2628        {
2629                local $/;
2630                $link_target = <$fd>;
2631        }
2632        close $fd
2633                or return;
2634
2635        return $link_target;
2636}
2637
2638# given link target, and the directory (basedir) the link is in,
2639# return target of link relative to top directory (top tree);
2640# return undef if it is not possible (including absolute links).
2641sub normalize_link_target {
2642        my ($link_target, $basedir, $hash_base) = @_;
2643
2644        # we can normalize symlink target only if $hash_base is provided
2645        return unless $hash_base;
2646
2647        # absolute symlinks (beginning with '/') cannot be normalized
2648        return if (substr($link_target, 0, 1) eq '/');
2649
2650        # normalize link target to path from top (root) tree (dir)
2651        my $path;
2652        if ($basedir) {
2653                $path = $basedir . '/' . $link_target;
2654        } else {
2655                # we are in top (root) tree (dir)
2656                $path = $link_target;
2657        }
2658
2659        # remove //, /./, and /../
2660        my @path_parts;
2661        foreach my $part (split('/', $path)) {
2662                # discard '.' and ''
2663                next if (!$part || $part eq '.');
2664                # handle '..'
2665                if ($part eq '..') {
2666                        if (@path_parts) {
2667                                pop @path_parts;
2668                        } else {
2669                                # link leads outside repository (outside top dir)
2670                                return;
2671                        }
2672                } else {
2673                        push @path_parts, $part;
2674                }
2675        }
2676        $path = join('/', @path_parts);
2677
2678        return $path;
2679}
2680
2681# print tree entry (row of git_tree), but without encompassing <tr> element
2682sub git_print_tree_entry {
2683        my ($t, $basedir, $hash_base, $have_blame) = @_;
2684
2685        my %base_key = ();
2686        $base_key{'hash_base'} = $hash_base if defined $hash_base;
2687
2688        # The format of a table row is: mode list link.  Where mode is
2689        # the mode of the entry, list is the name of the entry, an href,
2690        # and link is the action links of the entry.
2691
2692        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
2693        if ($t->{'type'} eq "blob") {
2694                print "<td class=\"list\">" .
2695                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2696                                               file_name=>"$basedir$t->{'name'}", %base_key),
2697                                -class => "list"}, esc_path($t->{'name'}));
2698                if (S_ISLNK(oct $t->{'mode'})) {
2699                        my $link_target = git_get_link_target($t->{'hash'});
2700                        if ($link_target) {
2701                                my $norm_target = normalize_link_target($link_target, $basedir, $hash_base);
2702                                if (defined $norm_target) {
2703                                        print " -> " .
2704                                              $cgi->a({-href => href(action=>"object", hash_base=>$hash_base,
2705                                                                     file_name=>$norm_target),
2706                                                       -title => $norm_target}, esc_path($link_target));
2707                                } else {
2708                                        print " -> " . esc_path($link_target);
2709                                }
2710                        }
2711                }
2712                print "</td>\n";
2713                print "<td class=\"link\">";
2714                print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2715                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2716                              "blob");
2717                if ($have_blame) {
2718                        print " | " .
2719                              $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
2720                                                     file_name=>"$basedir$t->{'name'}", %base_key)},
2721                                      "blame");
2722                }
2723                if (defined $hash_base) {
2724                        print " | " .
2725                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2726                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
2727                                      "history");
2728                }
2729                print " | " .
2730                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
2731                                               file_name=>"$basedir$t->{'name'}")},
2732                                "raw");
2733                print "</td>\n";
2734
2735        } elsif ($t->{'type'} eq "tree") {
2736                print "<td class=\"list\">";
2737                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2738                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2739                              esc_path($t->{'name'}));
2740                print "</td>\n";
2741                print "<td class=\"link\">";
2742                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2743                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2744                              "tree");
2745                if (defined $hash_base) {
2746                        print " | " .
2747                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2748                                                     file_name=>"$basedir$t->{'name'}")},
2749                                      "history");
2750                }
2751                print "</td>\n";
2752        } else {
2753                # unknown object: we can only present history for it
2754                # (this includes 'commit' object, i.e. submodule support)
2755                print "<td class=\"list\">" .
2756                      esc_path($t->{'name'}) .
2757                      "</td>\n";
2758                print "<td class=\"link\">";
2759                if (defined $hash_base) {
2760                        print $cgi->a({-href => href(action=>"history",
2761                                                     hash_base=>$hash_base,
2762                                                     file_name=>"$basedir$t->{'name'}")},
2763                                      "history");
2764                }
2765                print "</td>\n";
2766        }
2767}
2768
2769## ......................................................................
2770## functions printing large fragments of HTML
2771
2772sub fill_from_file_info {
2773        my ($diff, @parents) = @_;
2774
2775        $diff->{'from_file'} = [ ];
2776        $diff->{'from_file'}[$diff->{'nparents'} - 1] = undef;
2777        for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
2778                if ($diff->{'status'}[$i] eq 'R' ||
2779                    $diff->{'status'}[$i] eq 'C') {
2780                        $diff->{'from_file'}[$i] =
2781                                git_get_path_by_hash($parents[$i], $diff->{'from_id'}[$i]);
2782                }
2783        }
2784
2785        return $diff;
2786}
2787
2788# parameters can be strings, or references to arrays of strings
2789sub from_ids_eq {
2790        my ($a, $b) = @_;
2791
2792        if (ref($a) eq "ARRAY" && ref($b) eq "ARRAY" && @$a == @$b) {
2793                for (my $i = 0; $i < @$a; ++$i) {
2794                        return 0 unless ($a->[$i] eq $b->[$i]);
2795                }
2796                return 1;
2797        } elsif (!ref($a) && !ref($b)) {
2798                return $a eq $b;
2799        } else {
2800                return 0;
2801        }
2802}
2803
2804sub is_deleted {
2805        my $diffinfo = shift;
2806
2807        return $diffinfo->{'to_id'} eq ('0' x 40);
2808}
2809
2810sub git_difftree_body {
2811        my ($difftree, $hash, @parents) = @_;
2812        my ($parent) = $parents[0];
2813        my ($have_blame) = gitweb_check_feature('blame');
2814        print "<div class=\"list_head\">\n";
2815        if ($#{$difftree} > 10) {
2816                print(($#{$difftree} + 1) . " files changed:\n");
2817        }
2818        print "</div>\n";
2819
2820        print "<table class=\"" .
2821              (@parents > 1 ? "combined " : "") .
2822              "diff_tree\">\n";
2823
2824        # header only for combined diff in 'commitdiff' view
2825        my $has_header = @$difftree && @parents > 1 && $action eq 'commitdiff';
2826        if ($has_header) {
2827                # table header
2828                print "<thead><tr>\n" .
2829                       "<th></th><th></th>\n"; # filename, patchN link
2830                for (my $i = 0; $i < @parents; $i++) {
2831                        my $par = $parents[$i];
2832                        print "<th>" .
2833                              $cgi->a({-href => href(action=>"commitdiff",
2834                                                     hash=>$hash, hash_parent=>$par),
2835                                       -title => 'commitdiff to parent number ' .
2836                                                  ($i+1) . ': ' . substr($par,0,7)},
2837                                      $i+1) .
2838                              "&nbsp;</th>\n";
2839                }
2840                print "</tr></thead>\n<tbody>\n";
2841        }
2842
2843        my $alternate = 1;
2844        my $patchno = 0;
2845        foreach my $line (@{$difftree}) {
2846                my $diff;
2847                if (ref($line) eq "HASH") {
2848                        # pre-parsed (or generated by hand)
2849                        $diff = $line;
2850                } else {
2851                        $diff = parse_difftree_raw_line($line);
2852                }
2853
2854                if ($alternate) {
2855                        print "<tr class=\"dark\">\n";
2856                } else {
2857                        print "<tr class=\"light\">\n";
2858                }
2859                $alternate ^= 1;
2860
2861                if (exists $diff->{'nparents'}) { # combined diff
2862
2863                        fill_from_file_info($diff, @parents)
2864                                unless exists $diff->{'from_file'};
2865
2866                        if (!is_deleted($diff)) {
2867                                # file exists in the result (child) commit
2868                                print "<td>" .
2869                                      $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2870                                                             file_name=>$diff->{'to_file'},
2871                                                             hash_base=>$hash),
2872                                              -class => "list"}, esc_path($diff->{'to_file'})) .
2873                                      "</td>\n";
2874                        } else {
2875                                print "<td>" .
2876                                      esc_path($diff->{'to_file'}) .
2877                                      "</td>\n";
2878                        }
2879
2880                        if ($action eq 'commitdiff') {
2881                                # link to patch
2882                                $patchno++;
2883                                print "<td class=\"link\">" .
2884                                      $cgi->a({-href => "#patch$patchno"}, "patch") .
2885                                      " | " .
2886                                      "</td>\n";
2887                        }
2888
2889                        my $has_history = 0;
2890                        my $not_deleted = 0;
2891                        for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
2892                                my $hash_parent = $parents[$i];
2893                                my $from_hash = $diff->{'from_id'}[$i];
2894                                my $from_path = $diff->{'from_file'}[$i];
2895                                my $status = $diff->{'status'}[$i];
2896
2897                                $has_history ||= ($status ne 'A');
2898                                $not_deleted ||= ($status ne 'D');
2899
2900                                if ($status eq 'A') {
2901                                        print "<td  class=\"link\" align=\"right\"> | </td>\n";
2902                                } elsif ($status eq 'D') {
2903                                        print "<td class=\"link\">" .
2904                                              $cgi->a({-href => href(action=>"blob",
2905                                                                     hash_base=>$hash,
2906                                                                     hash=>$from_hash,
2907                                                                     file_name=>$from_path)},
2908                                                      "blob" . ($i+1)) .
2909                                              " | </td>\n";
2910                                } else {
2911                                        if ($diff->{'to_id'} eq $from_hash) {
2912                                                print "<td class=\"link nochange\">";
2913                                        } else {
2914                                                print "<td class=\"link\">";
2915                                        }
2916                                        print $cgi->a({-href => href(action=>"blobdiff",
2917                                                                     hash=>$diff->{'to_id'},
2918                                                                     hash_parent=>$from_hash,
2919                                                                     hash_base=>$hash,
2920                                                                     hash_parent_base=>$hash_parent,
2921                                                                     file_name=>$diff->{'to_file'},
2922                                                                     file_parent=>$from_path)},
2923                                                      "diff" . ($i+1)) .
2924                                              " | </td>\n";
2925                                }
2926                        }
2927
2928                        print "<td class=\"link\">";
2929                        if ($not_deleted) {
2930                                print $cgi->a({-href => href(action=>"blob",
2931                                                             hash=>$diff->{'to_id'},
2932                                                             file_name=>$diff->{'to_file'},
2933                                                             hash_base=>$hash)},
2934                                              "blob");
2935                                print " | " if ($has_history);
2936                        }
2937                        if ($has_history) {
2938                                print $cgi->a({-href => href(action=>"history",
2939                                                             file_name=>$diff->{'to_file'},
2940                                                             hash_base=>$hash)},
2941                                              "history");
2942                        }
2943                        print "</td>\n";
2944
2945                        print "</tr>\n";
2946                        next; # instead of 'else' clause, to avoid extra indent
2947                }
2948                # else ordinary diff
2949
2950                my ($to_mode_oct, $to_mode_str, $to_file_type);
2951                my ($from_mode_oct, $from_mode_str, $from_file_type);
2952                if ($diff->{'to_mode'} ne ('0' x 6)) {
2953                        $to_mode_oct = oct $diff->{'to_mode'};
2954                        if (S_ISREG($to_mode_oct)) { # only for regular file
2955                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
2956                        }
2957                        $to_file_type = file_type($diff->{'to_mode'});
2958                }
2959                if ($diff->{'from_mode'} ne ('0' x 6)) {
2960                        $from_mode_oct = oct $diff->{'from_mode'};
2961                        if (S_ISREG($to_mode_oct)) { # only for regular file
2962                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
2963                        }
2964                        $from_file_type = file_type($diff->{'from_mode'});
2965                }
2966
2967                if ($diff->{'status'} eq "A") { # created
2968                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
2969                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
2970                        $mode_chng   .= "]</span>";
2971                        print "<td>";
2972                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2973                                                     hash_base=>$hash, file_name=>$diff->{'file'}),
2974                                      -class => "list"}, esc_path($diff->{'file'}));
2975                        print "</td>\n";
2976                        print "<td>$mode_chng</td>\n";
2977                        print "<td class=\"link\">";
2978                        if ($action eq 'commitdiff') {
2979                                # link to patch
2980                                $patchno++;
2981                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2982                                print " | ";
2983                        }
2984                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2985                                                     hash_base=>$hash, file_name=>$diff->{'file'})},
2986                                      "blob");
2987                        print "</td>\n";
2988
2989                } elsif ($diff->{'status'} eq "D") { # deleted
2990                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
2991                        print "<td>";
2992                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
2993                                                     hash_base=>$parent, file_name=>$diff->{'file'}),
2994                                       -class => "list"}, esc_path($diff->{'file'}));
2995                        print "</td>\n";
2996                        print "<td>$mode_chng</td>\n";
2997                        print "<td class=\"link\">";
2998                        if ($action eq 'commitdiff') {
2999                                # link to patch
3000                                $patchno++;
3001                                print $cgi->a({-href => "#patch$patchno"}, "patch");
3002                                print " | ";
3003                        }
3004                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
3005                                                     hash_base=>$parent, file_name=>$diff->{'file'})},
3006                                      "blob") . " | ";
3007                        if ($have_blame) {
3008                                print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
3009                                                             file_name=>$diff->{'file'})},
3010                                              "blame") . " | ";
3011                        }
3012                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
3013                                                     file_name=>$diff->{'file'})},
3014                                      "history");
3015                        print "</td>\n";
3016
3017                } elsif ($diff->{'status'} eq "M" || $diff->{'status'} eq "T") { # modified, or type changed
3018                        my $mode_chnge = "";
3019                        if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
3020                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
3021                                if ($from_file_type ne $to_file_type) {
3022                                        $mode_chnge .= " from $from_file_type to $to_file_type";
3023                                }
3024                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
3025                                        if ($from_mode_str && $to_mode_str) {
3026                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
3027                                        } elsif ($to_mode_str) {
3028                                                $mode_chnge .= " mode: $to_mode_str";
3029                                        }
3030                                }
3031                                $mode_chnge .= "]</span>\n";
3032                        }
3033                        print "<td>";
3034                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3035                                                     hash_base=>$hash, file_name=>$diff->{'file'}),
3036                                      -class => "list"}, esc_path($diff->{'file'}));
3037                        print "</td>\n";
3038                        print "<td>$mode_chnge</td>\n";
3039                        print "<td class=\"link\">";
3040                        if ($action eq 'commitdiff') {
3041                                # link to patch
3042                                $patchno++;
3043                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
3044                                      " | ";
3045                        } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
3046                                # "commit" view and modified file (not onlu mode changed)
3047                                print $cgi->a({-href => href(action=>"blobdiff",
3048                                                             hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
3049                                                             hash_base=>$hash, hash_parent_base=>$parent,
3050                                                             file_name=>$diff->{'file'})},
3051                                              "diff") .
3052                                      " | ";
3053                        }
3054                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3055                                                     hash_base=>$hash, file_name=>$diff->{'file'})},
3056                                       "blob") . " | ";
3057                        if ($have_blame) {
3058                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
3059                                                             file_name=>$diff->{'file'})},
3060                                              "blame") . " | ";
3061                        }
3062                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
3063                                                     file_name=>$diff->{'file'})},
3064                                      "history");
3065                        print "</td>\n";
3066
3067                } elsif ($diff->{'status'} eq "R" || $diff->{'status'} eq "C") { # renamed or copied
3068                        my %status_name = ('R' => 'moved', 'C' => 'copied');
3069                        my $nstatus = $status_name{$diff->{'status'}};
3070                        my $mode_chng = "";
3071                        if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
3072                                # mode also for directories, so we cannot use $to_mode_str
3073                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
3074                        }
3075                        print "<td>" .
3076                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
3077                                                     hash=>$diff->{'to_id'}, file_name=>$diff->{'to_file'}),
3078                                      -class => "list"}, esc_path($diff->{'to_file'})) . "</td>\n" .
3079                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
3080                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
3081                                                     hash=>$diff->{'from_id'}, file_name=>$diff->{'from_file'}),
3082                                      -class => "list"}, esc_path($diff->{'from_file'})) .
3083                              " with " . (int $diff->{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
3084                              "<td class=\"link\">";
3085                        if ($action eq 'commitdiff') {
3086                                # link to patch
3087                                $patchno++;
3088                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
3089                                      " | ";
3090                        } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
3091                                # "commit" view and modified file (not only pure rename or copy)
3092                                print $cgi->a({-href => href(action=>"blobdiff",
3093                                                             hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
3094                                                             hash_base=>$hash, hash_parent_base=>$parent,
3095                                                             file_name=>$diff->{'to_file'}, file_parent=>$diff->{'from_file'})},
3096                                              "diff") .
3097                                      " | ";
3098                        }
3099                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3100                                                     hash_base=>$parent, file_name=>$diff->{'to_file'})},
3101                                      "blob") . " | ";
3102                        if ($have_blame) {
3103                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
3104                                                             file_name=>$diff->{'to_file'})},
3105                                              "blame") . " | ";
3106                        }
3107                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
3108                                                    file_name=>$diff->{'to_file'})},
3109                                      "history");
3110                        print "</td>\n";
3111
3112                } # we should not encounter Unmerged (U) or Unknown (X) status
3113                print "</tr>\n";
3114        }
3115        print "</tbody>" if $has_header;
3116        print "</table>\n";
3117}
3118
3119sub git_patchset_body {
3120        my ($fd, $difftree, $hash, @hash_parents) = @_;
3121        my ($hash_parent) = $hash_parents[0];
3122
3123        my $patch_idx = 0;
3124        my $patch_number = 0;
3125        my $patch_line;
3126        my $diffinfo;
3127        my (%from, %to);
3128
3129        print "<div class=\"patchset\">\n";
3130
3131        # skip to first patch
3132        while ($patch_line = <$fd>) {
3133                chomp $patch_line;
3134
3135                last if ($patch_line =~ m/^diff /);
3136        }
3137
3138 PATCH:
3139        while ($patch_line) {
3140                my @diff_header;
3141                my ($from_id, $to_id);
3142
3143                # git diff header
3144                #assert($patch_line =~ m/^diff /) if DEBUG;
3145                #assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
3146                $patch_number++;
3147                push @diff_header, $patch_line;
3148
3149                # extended diff header
3150        EXTENDED_HEADER:
3151                while ($patch_line = <$fd>) {
3152                        chomp $patch_line;
3153
3154                        last EXTENDED_HEADER if ($patch_line =~ m/^--- |^diff /);
3155
3156                        if ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
3157                                $from_id = $1;
3158                                $to_id   = $2;
3159                        } elsif ($patch_line =~ m/^index ((?:[0-9a-fA-F]{40},)+[0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
3160                                $from_id = [ split(',', $1) ];
3161                                $to_id   = $2;
3162                        }
3163
3164                        push @diff_header, $patch_line;
3165                }
3166                my $last_patch_line = $patch_line;
3167
3168                # check if current patch belong to current raw line
3169                # and parse raw git-diff line if needed
3170                if (defined $diffinfo &&
3171                    defined $from_id && defined $to_id &&
3172                    from_ids_eq($diffinfo->{'from_id'}, $from_id) &&
3173                    $diffinfo->{'to_id'} eq $to_id) {
3174                        # this is continuation of a split patch
3175                        print "<div class=\"patch cont\">\n";
3176                } else {
3177                        # advance raw git-diff output if needed
3178                        $patch_idx++ if defined $diffinfo;
3179
3180                        # compact combined diff output can have some patches skipped
3181                        # find which patch (using pathname of result) we are at now
3182                        my $to_name;
3183                        if ($diff_header[0] =~ m!^diff --cc "?(.*)"?$!) {
3184                                $to_name = $1;
3185                        }
3186
3187                        do {
3188                                # read and prepare patch information
3189                                if (ref($difftree->[$patch_idx]) eq "HASH") {
3190                                        # pre-parsed (or generated by hand)
3191                                        $diffinfo = $difftree->[$patch_idx];
3192                                } else {
3193                                        $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
3194                                }
3195
3196                                # check if current raw line has no patch (it got simplified)
3197                                if (defined $to_name && $to_name ne $diffinfo->{'to_file'}) {
3198                                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n" .
3199                                              format_diff_cc_simplified($diffinfo, @hash_parents) .
3200                                              "</div>\n";  # class="patch"
3201
3202                                        $patch_idx++;
3203                                        $patch_number++;
3204                                }
3205                        } until (!defined $to_name || $to_name eq $diffinfo->{'to_file'} ||
3206                                 $patch_idx > $#$difftree);
3207
3208                        # modifies %from, %to hashes
3209                        parse_from_to_diffinfo($diffinfo, \%from, \%to, @hash_parents);
3210
3211                        # this is first patch for raw difftree line with $patch_idx index
3212                        # we index @$difftree array from 0, but number patches from 1
3213                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
3214                }
3215
3216                # print "git diff" header
3217                $patch_line = shift @diff_header;
3218                print format_git_diff_header_line($patch_line, $diffinfo,
3219                                                  \%from, \%to);
3220
3221                # print extended diff header
3222                print "<div class=\"diff extended_header\">\n" if (@diff_header > 0);
3223        EXTENDED_HEADER:
3224                foreach $patch_line (@diff_header) {
3225                        print format_extended_diff_header_line($patch_line, $diffinfo,
3226                                                               \%from, \%to);
3227                }
3228                print "</div>\n"  if (@diff_header > 0); # class="diff extended_header"
3229
3230                # from-file/to-file diff header
3231                $patch_line = $last_patch_line;
3232                if (! $patch_line) {
3233                        print "</div>\n"; # class="patch"
3234                        last PATCH;
3235                }
3236                next PATCH if ($patch_line =~ m/^diff /);
3237                #assert($patch_line =~ m/^---/) if DEBUG;
3238                #assert($patch_line eq $last_patch_line) if DEBUG;
3239
3240                $patch_line = <$fd>;
3241                chomp $patch_line;
3242                #assert($patch_line =~ m/^\+\+\+/) if DEBUG;
3243
3244                print format_diff_from_to_header($last_patch_line, $patch_line,
3245                                                 $diffinfo, \%from, \%to,
3246                                                 @hash_parents);
3247
3248                # the patch itself
3249        LINE:
3250                while ($patch_line = <$fd>) {
3251                        chomp $patch_line;
3252
3253                        next PATCH if ($patch_line =~ m/^diff /);
3254
3255                        print format_diff_line($patch_line, \%from, \%to);
3256                }
3257
3258        } continue {
3259                print "</div>\n"; # class="patch"
3260        }
3261
3262        # for compact combined (--cc) format, with chunk and patch simpliciaction
3263        # patchset might be empty, but there might be unprocessed raw lines
3264        for ($patch_idx++ if $patch_number > 0;
3265             $patch_idx < @$difftree;
3266             $patch_idx++) {
3267                # read and prepare patch information
3268                if (ref($difftree->[$patch_idx]) eq "HASH") {
3269                        # pre-parsed (or generated by hand)
3270                        $diffinfo = $difftree->[$patch_idx];
3271                } else {
3272                        $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
3273                }
3274
3275                # generate anchor for "patch" links in difftree / whatchanged part
3276                print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n" .
3277                      format_diff_cc_simplified($diffinfo, @hash_parents) .
3278                      "</div>\n";  # class="patch"
3279
3280                $patch_number++;
3281        }
3282
3283        if ($patch_number == 0) {
3284                if (@hash_parents > 1) {
3285                        print "<div class=\"diff nodifferences\">Trivial merge</div>\n";
3286                } else {
3287                        print "<div class=\"diff nodifferences\">No differences found</div>\n";
3288                }
3289        }
3290
3291        print "</div>\n"; # class="patchset"
3292}
3293
3294# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3295
3296sub git_project_list_body {
3297        my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
3298
3299        my ($check_forks) = gitweb_check_feature('forks');
3300
3301        my @projects;
3302        foreach my $pr (@$projlist) {
3303                my (@aa) = git_get_last_activity($pr->{'path'});
3304                unless (@aa) {
3305                        next;
3306                }
3307                ($pr->{'age'}, $pr->{'age_string'}) = @aa;
3308                if (!defined $pr->{'descr'}) {
3309                        my $descr = git_get_project_description($pr->{'path'}) || "";
3310                        $pr->{'descr_long'} = to_utf8($descr);
3311                        $pr->{'descr'} = chop_str($descr, $projects_list_description_width, 5);
3312                }
3313                if (!defined $pr->{'owner'}) {
3314                        $pr->{'owner'} = git_get_project_owner("$pr->{'path'}") || "";
3315                }
3316                if ($check_forks) {
3317                        my $pname = $pr->{'path'};
3318                        if (($pname =~ s/\.git$//) &&
3319                            ($pname !~ /\/$/) &&
3320                            (-d "$projectroot/$pname")) {
3321                                $pr->{'forks'} = "-d $projectroot/$pname";
3322                        }
3323                        else {
3324                                $pr->{'forks'} = 0;
3325                        }
3326                }
3327                push @projects, $pr;
3328        }
3329
3330        $order ||= $default_projects_order;
3331        $from = 0 unless defined $from;
3332        $to = $#projects if (!defined $to || $#projects < $to);
3333
3334        print "<table class=\"project_list\">\n";
3335        unless ($no_header) {
3336                print "<tr>\n";
3337                if ($check_forks) {
3338                        print "<th></th>\n";
3339                }
3340                if ($order eq "project") {
3341                        @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
3342                        print "<th>Project</th>\n";
3343                } else {
3344                        print "<th>" .
3345                              $cgi->a({-href => href(project=>undef, order=>'project'),
3346                                       -class => "header"}, "Project") .
3347                              "</th>\n";
3348                }
3349                if ($order eq "descr") {
3350                        @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
3351                        print "<th>Description</th>\n";
3352                } else {
3353                        print "<th>" .
3354                              $cgi->a({-href => href(project=>undef, order=>'descr'),
3355                                       -class => "header"}, "Description") .
3356                              "</th>\n";
3357                }
3358                if ($order eq "owner") {
3359                        @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
3360                        print "<th>Owner</th>\n";
3361                } else {
3362                        print "<th>" .
3363                              $cgi->a({-href => href(project=>undef, order=>'owner'),
3364                                       -class => "header"}, "Owner") .
3365                              "</th>\n";
3366                }
3367                if ($order eq "age") {
3368                        @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
3369                        print "<th>Last Change</th>\n";
3370                } else {
3371                        print "<th>" .
3372                              $cgi->a({-href => href(project=>undef, order=>'age'),
3373                                       -class => "header"}, "Last Change") .
3374                              "</th>\n";
3375                }
3376                print "<th></th>\n" .
3377                      "</tr>\n";
3378        }
3379        my $alternate = 1;
3380        for (my $i = $from; $i <= $to; $i++) {
3381                my $pr = $projects[$i];
3382                if ($alternate) {
3383                        print "<tr class=\"dark\">\n";
3384                } else {
3385                        print "<tr class=\"light\">\n";
3386                }
3387                $alternate ^= 1;
3388                if ($check_forks) {
3389                        print "<td>";
3390                        if ($pr->{'forks'}) {
3391                                print "<!-- $pr->{'forks'} -->\n";
3392                                print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
3393                        }
3394                        print "</td>\n";
3395                }
3396                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
3397                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
3398                      "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
3399                                        -class => "list", -title => $pr->{'descr_long'}},
3400                                        esc_html($pr->{'descr'})) . "</td>\n" .
3401                      "<td><i>" . esc_html(chop_str($pr->{'owner'}, 15)) . "</i></td>\n";
3402                print "<td class=\"". age_class($pr->{'age'}) . "\">" .
3403                      (defined $pr->{'age_string'} ? $pr->{'age_string'} : "No commits") . "</td>\n" .
3404                      "<td class=\"link\">" .
3405                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
3406                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
3407                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
3408                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
3409                      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
3410                      "</td>\n" .
3411                      "</tr>\n";
3412        }
3413        if (defined $extra) {
3414                print "<tr>\n";
3415                if ($check_forks) {
3416                        print "<td></td>\n";
3417                }
3418                print "<td colspan=\"5\">$extra</td>\n" .
3419                      "</tr>\n";
3420        }
3421        print "</table>\n";
3422}
3423
3424sub git_shortlog_body {
3425        # uses global variable $project
3426        my ($commitlist, $from, $to, $refs, $extra) = @_;
3427
3428        $from = 0 unless defined $from;
3429        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
3430
3431        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
3432        my $alternate = 1;
3433        for (my $i = $from; $i <= $to; $i++) {
3434                my %co = %{$commitlist->[$i]};
3435                my $commit = $co{'id'};
3436                my $ref = format_ref_marker($refs, $commit);
3437                if ($alternate) {
3438                        print "<tr class=\"dark\">\n";
3439                } else {
3440                        print "<tr class=\"light\">\n";
3441                }
3442                $alternate ^= 1;
3443                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
3444                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3445                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
3446                      "<td>";
3447                print format_subject_html($co{'title'}, $co{'title_short'},
3448                                          href(action=>"commit", hash=>$commit), $ref);
3449                print "</td>\n" .
3450                      "<td class=\"link\">" .
3451                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
3452                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
3453                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
3454                my $snapshot_links = format_snapshot_links($commit);
3455                if (defined $snapshot_links) {
3456                        print " | " . $snapshot_links;
3457                }
3458                print "</td>\n" .
3459                      "</tr>\n";
3460        }
3461        if (defined $extra) {
3462                print "<tr>\n" .
3463                      "<td colspan=\"4\">$extra</td>\n" .
3464                      "</tr>\n";
3465        }
3466        print "</table>\n";
3467}
3468
3469sub git_history_body {
3470        # Warning: assumes constant type (blob or tree) during history
3471        my ($commitlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
3472
3473        $from = 0 unless defined $from;
3474        $to = $#{$commitlist} unless (defined $to && $to <= $#{$commitlist});
3475
3476        print "<table class=\"history\" cellspacing=\"0\">\n";
3477        my $alternate = 1;
3478        for (my $i = $from; $i <= $to; $i++) {
3479                my %co = %{$commitlist->[$i]};
3480                if (!%co) {
3481                        next;
3482                }
3483                my $commit = $co{'id'};
3484
3485                my $ref = format_ref_marker($refs, $commit);
3486
3487                if ($alternate) {
3488                        print "<tr class=\"dark\">\n";
3489                } else {
3490                        print "<tr class=\"light\">\n";
3491                }
3492                $alternate ^= 1;
3493                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3494                      # shortlog uses      chop_str($co{'author_name'}, 10)
3495                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
3496                      "<td>";
3497                # originally git_history used chop_str($co{'title'}, 50)
3498                print format_subject_html($co{'title'}, $co{'title_short'},
3499                                          href(action=>"commit", hash=>$commit), $ref);
3500                print "</td>\n" .
3501                      "<td class=\"link\">" .
3502                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
3503                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
3504
3505                if ($ftype eq 'blob') {
3506                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
3507                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
3508                        if (defined $blob_current && defined $blob_parent &&
3509                                        $blob_current ne $blob_parent) {
3510                                print " | " .
3511                                        $cgi->a({-href => href(action=>"blobdiff",
3512                                                               hash=>$blob_current, hash_parent=>$blob_parent,
3513                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
3514                                                               file_name=>$file_name)},
3515                                                "diff to current");
3516                        }
3517                }
3518                print "</td>\n" .
3519                      "</tr>\n";
3520        }
3521        if (defined $extra) {
3522                print "<tr>\n" .
3523                      "<td colspan=\"4\">$extra</td>\n" .
3524                      "</tr>\n";
3525        }
3526        print "</table>\n";
3527}
3528
3529sub git_tags_body {
3530        # uses global variable $project
3531        my ($taglist, $from, $to, $extra) = @_;
3532        $from = 0 unless defined $from;
3533        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
3534
3535        print "<table class=\"tags\" cellspacing=\"0\">\n";
3536        my $alternate = 1;
3537        for (my $i = $from; $i <= $to; $i++) {
3538                my $entry = $taglist->[$i];
3539                my %tag = %$entry;
3540                my $comment = $tag{'subject'};
3541                my $comment_short;
3542                if (defined $comment) {
3543                        $comment_short = chop_str($comment, 30, 5);
3544                }
3545                if ($alternate) {
3546                        print "<tr class=\"dark\">\n";
3547                } else {
3548                        print "<tr class=\"light\">\n";
3549                }
3550                $alternate ^= 1;
3551                if (defined $tag{'age'}) {
3552                        print "<td><i>$tag{'age'}</i></td>\n";
3553                } else {
3554                        print "<td></td>\n";
3555                }
3556                print "<td>" .
3557                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
3558                               -class => "list name"}, esc_html($tag{'name'})) .
3559                      "</td>\n" .
3560                      "<td>";
3561                if (defined $comment) {
3562                        print format_subject_html($comment, $comment_short,
3563                                                  href(action=>"tag", hash=>$tag{'id'}));
3564                }
3565                print "</td>\n" .
3566                      "<td class=\"selflink\">";
3567                if ($tag{'type'} eq "tag") {
3568                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
3569                } else {
3570                        print "&nbsp;";
3571                }
3572                print "</td>\n" .
3573                      "<td class=\"link\">" . " | " .
3574                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
3575                if ($tag{'reftype'} eq "commit") {
3576                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
3577                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
3578                } elsif ($tag{'reftype'} eq "blob") {
3579                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
3580                }
3581                print "</td>\n" .
3582                      "</tr>";
3583        }
3584        if (defined $extra) {
3585                print "<tr>\n" .
3586                      "<td colspan=\"5\">$extra</td>\n" .
3587                      "</tr>\n";
3588        }
3589        print "</table>\n";
3590}
3591
3592sub git_heads_body {
3593        # uses global variable $project
3594        my ($headlist, $head, $from, $to, $extra) = @_;
3595        $from = 0 unless defined $from;
3596        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
3597
3598        print "<table class=\"heads\" cellspacing=\"0\">\n";
3599        my $alternate = 1;
3600        for (my $i = $from; $i <= $to; $i++) {
3601                my $entry = $headlist->[$i];
3602                my %ref = %$entry;
3603                my $curr = $ref{'id'} eq $head;
3604                if ($alternate) {
3605                        print "<tr class=\"dark\">\n";
3606                } else {
3607                        print "<tr class=\"light\">\n";
3608                }
3609                $alternate ^= 1;
3610                print "<td><i>$ref{'age'}</i></td>\n" .
3611                      ($curr ? "<td class=\"current_head\">" : "<td>") .
3612                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
3613                               -class => "list name"},esc_html($ref{'name'})) .
3614                      "</td>\n" .
3615                      "<td class=\"link\">" .
3616                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
3617                      $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
3618                      $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
3619                      "</td>\n" .
3620                      "</tr>";
3621        }
3622        if (defined $extra) {
3623                print "<tr>\n" .
3624                      "<td colspan=\"3\">$extra</td>\n" .
3625                      "</tr>\n";
3626        }
3627        print "</table>\n";
3628}
3629
3630sub git_search_grep_body {
3631        my ($commitlist, $from, $to, $extra) = @_;
3632        $from = 0 unless defined $from;
3633        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
3634
3635        print "<table class=\"grep\" cellspacing=\"0\">\n";
3636        my $alternate = 1;
3637        for (my $i = $from; $i <= $to; $i++) {
3638                my %co = %{$commitlist->[$i]};
3639                if (!%co) {
3640                        next;
3641                }
3642                my $commit = $co{'id'};
3643                if ($alternate) {
3644                        print "<tr class=\"dark\">\n";
3645                } else {
3646                        print "<tr class=\"light\">\n";
3647                }
3648                $alternate ^= 1;
3649                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3650                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3651                      "<td>" .
3652                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3653                               esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3654                my $comment = $co{'comment'};
3655                foreach my $line (@$comment) {
3656                        if ($line =~ m/^(.*)($search_regexp)(.*)$/i) {
3657                                my $lead = esc_html($1) || "";
3658                                $lead = chop_str($lead, 30, 10);
3659                                my $match = esc_html($2) || "";
3660                                my $trail = esc_html($3) || "";
3661                                $trail = chop_str($trail, 30, 10);
3662                                my $text = "$lead<span class=\"match\">$match</span>$trail";
3663                                print chop_str($text, 80, 5) . "<br/>\n";
3664                        }
3665                }
3666                print "</td>\n" .
3667                      "<td class=\"link\">" .
3668                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3669                      " | " .
3670                      $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3671                print "</td>\n" .
3672                      "</tr>\n";
3673        }
3674        if (defined $extra) {
3675                print "<tr>\n" .
3676                      "<td colspan=\"3\">$extra</td>\n" .
3677                      "</tr>\n";
3678        }
3679        print "</table>\n";
3680}
3681
3682## ======================================================================
3683## ======================================================================
3684## actions
3685
3686sub git_project_list {
3687        my $order = $cgi->param('o');
3688        if (defined $order && $order !~ m/none|project|descr|owner|age/) {
3689                die_error(undef, "Unknown order parameter");
3690        }
3691
3692        my @list = git_get_projects_list();
3693        if (!@list) {
3694                die_error(undef, "No projects found");
3695        }
3696
3697        git_header_html();
3698        if (-f $home_text) {
3699                print "<div class=\"index_include\">\n";
3700                open (my $fd, $home_text);
3701                print <$fd>;
3702                close $fd;
3703                print "</div>\n";
3704        }
3705        git_project_list_body(\@list, $order);
3706        git_footer_html();
3707}
3708
3709sub git_forks {
3710        my $order = $cgi->param('o');
3711        if (defined $order && $order !~ m/none|project|descr|owner|age/) {
3712                die_error(undef, "Unknown order parameter");
3713        }
3714
3715        my @list = git_get_projects_list($project);
3716        if (!@list) {
3717                die_error(undef, "No forks found");
3718        }
3719
3720        git_header_html();
3721        git_print_page_nav('','');
3722        git_print_header_div('summary', "$project forks");
3723        git_project_list_body(\@list, $order);
3724        git_footer_html();
3725}
3726
3727sub git_project_index {
3728        my @projects = git_get_projects_list($project);
3729
3730        print $cgi->header(
3731                -type => 'text/plain',
3732                -charset => 'utf-8',
3733                -content_disposition => 'inline; filename="index.aux"');
3734
3735        foreach my $pr (@projects) {
3736                if (!exists $pr->{'owner'}) {
3737                        $pr->{'owner'} = git_get_project_owner("$pr->{'path'}");
3738                }
3739
3740                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
3741                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
3742                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3743                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3744                $path  =~ s/ /\+/g;
3745                $owner =~ s/ /\+/g;
3746
3747                print "$path $owner\n";
3748        }
3749}
3750
3751sub git_summary {
3752        my $descr = git_get_project_description($project) || "none";
3753        my %co = parse_commit("HEAD");
3754        my %cd = %co ? parse_date($co{'committer_epoch'}, $co{'committer_tz'}) : ();
3755        my $head = $co{'id'};
3756
3757        my $owner = git_get_project_owner($project);
3758
3759        my $refs = git_get_references();
3760        # These get_*_list functions return one more to allow us to see if
3761        # there are more ...
3762        my @taglist  = git_get_tags_list(16);
3763        my @headlist = git_get_heads_list(16);
3764        my @forklist;
3765        my ($check_forks) = gitweb_check_feature('forks');
3766
3767        if ($check_forks) {
3768                @forklist = git_get_projects_list($project);
3769        }
3770
3771        git_header_html();
3772        git_print_page_nav('summary','', $head);
3773
3774        print "<div class=\"title\">&nbsp;</div>\n";
3775        print "<table cellspacing=\"0\">\n" .
3776              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
3777              "<tr><td>owner</td><td>" . esc_html($owner) . "</td></tr>\n";
3778        if (defined $cd{'rfc2822'}) {
3779                print "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
3780        }
3781
3782        # use per project git URL list in $projectroot/$project/cloneurl
3783        # or make project git URL from git base URL and project name
3784        my $url_tag = "URL";
3785        my @url_list = git_get_project_url_list($project);
3786        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
3787        foreach my $git_url (@url_list) {
3788                next unless $git_url;
3789                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
3790                $url_tag = "";
3791        }
3792        print "</table>\n";
3793
3794        if (-s "$projectroot/$project/README.html") {
3795                if (open my $fd, "$projectroot/$project/README.html") {
3796                        print "<div class=\"title\">readme</div>\n";
3797                        print $_ while (<$fd>);
3798                        close $fd;
3799                }
3800        }
3801
3802        # we need to request one more than 16 (0..15) to check if
3803        # those 16 are all
3804        my @commitlist = $head ? parse_commits($head, 17) : ();
3805        if (@commitlist) {
3806                git_print_header_div('shortlog');
3807                git_shortlog_body(\@commitlist, 0, 15, $refs,
3808                                  $#commitlist <=  15 ? undef :
3809                                  $cgi->a({-href => href(action=>"shortlog")}, "..."));
3810        }
3811
3812        if (@taglist) {
3813                git_print_header_div('tags');
3814                git_tags_body(\@taglist, 0, 15,
3815                              $#taglist <=  15 ? undef :
3816                              $cgi->a({-href => href(action=>"tags")}, "..."));
3817        }
3818
3819        if (@headlist) {
3820                git_print_header_div('heads');
3821                git_heads_body(\@headlist, $head, 0, 15,
3822                               $#headlist <= 15 ? undef :
3823                               $cgi->a({-href => href(action=>"heads")}, "..."));
3824        }
3825
3826        if (@forklist) {
3827                git_print_header_div('forks');
3828                git_project_list_body(\@forklist, undef, 0, 15,
3829                                      $#forklist <= 15 ? undef :
3830                                      $cgi->a({-href => href(action=>"forks")}, "..."),
3831                                      'noheader');
3832        }
3833
3834        git_footer_html();
3835}
3836
3837sub git_tag {
3838        my $head = git_get_head_hash($project);
3839        git_header_html();
3840        git_print_page_nav('','', $head,undef,$head);
3841        my %tag = parse_tag($hash);
3842
3843        if (! %tag) {
3844                die_error(undef, "Unknown tag object");
3845        }
3846
3847        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
3848        print "<div class=\"title_text\">\n" .
3849              "<table cellspacing=\"0\">\n" .
3850              "<tr>\n" .
3851              "<td>object</td>\n" .
3852              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3853                               $tag{'object'}) . "</td>\n" .
3854              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3855                                              $tag{'type'}) . "</td>\n" .
3856              "</tr>\n";
3857        if (defined($tag{'author'})) {
3858                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
3859                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
3860                print "<tr><td></td><td>" . $ad{'rfc2822'} .
3861                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
3862                        "</td></tr>\n";
3863        }
3864        print "</table>\n\n" .
3865              "</div>\n";
3866        print "<div class=\"page_body\">";
3867        my $comment = $tag{'comment'};
3868        foreach my $line (@$comment) {
3869                chomp $line;
3870                print esc_html($line, -nbsp=>1) . "<br/>\n";
3871        }
3872        print "</div>\n";
3873        git_footer_html();
3874}
3875
3876sub git_blame2 {
3877        my $fd;
3878        my $ftype;
3879
3880        my ($have_blame) = gitweb_check_feature('blame');
3881        if (!$have_blame) {
3882                die_error('403 Permission denied', "Permission denied");
3883        }
3884        die_error('404 Not Found', "File name not defined") if (!$file_name);
3885        $hash_base ||= git_get_head_hash($project);
3886        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3887        my %co = parse_commit($hash_base)
3888                or die_error(undef, "Reading commit failed");
3889        if (!defined $hash) {
3890                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3891                        or die_error(undef, "Error looking up file");
3892        }
3893        $ftype = git_get_type($hash);
3894        if ($ftype !~ "blob") {
3895                die_error('400 Bad Request', "Object is not a blob");
3896        }
3897        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
3898              $file_name, $hash_base)
3899                or die_error(undef, "Open git-blame failed");
3900        git_header_html();
3901        my $formats_nav =
3902                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3903                        "blob") .
3904                " | " .
3905                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3906                        "history") .
3907                " | " .
3908                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3909                        "HEAD");
3910        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3911        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3912        git_print_page_path($file_name, $ftype, $hash_base);
3913        my @rev_color = (qw(light2 dark2));
3914        my $num_colors = scalar(@rev_color);
3915        my $current_color = 0;
3916        my $last_rev;
3917        print <<HTML;
3918<div class="page_body">
3919<table class="blame">
3920<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
3921HTML
3922        my %metainfo = ();
3923        while (1) {
3924                $_ = <$fd>;
3925                last unless defined $_;
3926                my ($full_rev, $orig_lineno, $lineno, $group_size) =
3927                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
3928                if (!exists $metainfo{$full_rev}) {
3929                        $metainfo{$full_rev} = {};
3930                }
3931                my $meta = $metainfo{$full_rev};
3932                while (<$fd>) {
3933                        last if (s/^\t//);
3934                        if (/^(\S+) (.*)$/) {
3935                                $meta->{$1} = $2;
3936                        }
3937                }
3938                my $data = $_;
3939                chomp $data;
3940                my $rev = substr($full_rev, 0, 8);
3941                my $author = $meta->{'author'};
3942                my %date = parse_date($meta->{'author-time'},
3943                                      $meta->{'author-tz'});
3944                my $date = $date{'iso-tz'};
3945                if ($group_size) {
3946                        $current_color = ++$current_color % $num_colors;
3947                }
3948                print "<tr class=\"$rev_color[$current_color]\">\n";
3949                if ($group_size) {
3950                        print "<td class=\"sha1\"";
3951                        print " title=\"". esc_html($author) . ", $date\"";
3952                        print " rowspan=\"$group_size\"" if ($group_size > 1);
3953                        print ">";
3954                        print $cgi->a({-href => href(action=>"commit",
3955                                                     hash=>$full_rev,
3956                                                     file_name=>$file_name)},
3957                                      esc_html($rev));
3958                        print "</td>\n";
3959                }
3960                open (my $dd, "-|", git_cmd(), "rev-parse", "$full_rev^")
3961                        or die_error(undef, "Open git-rev-parse failed");
3962                my $parent_commit = <$dd>;
3963                close $dd;
3964                chomp($parent_commit);
3965                my $blamed = href(action => 'blame',
3966                                  file_name => $meta->{'filename'},
3967                                  hash_base => $parent_commit);
3968                print "<td class=\"linenr\">";
3969                print $cgi->a({ -href => "$blamed#l$orig_lineno",
3970                                -id => "l$lineno",
3971                                -class => "linenr" },
3972                              esc_html($lineno));
3973                print "</td>";
3974                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
3975                print "</tr>\n";
3976        }
3977        print "</table>\n";
3978        print "</div>";
3979        close $fd
3980                or print "Reading blob failed\n";
3981        git_footer_html();
3982}
3983
3984sub git_blame {
3985        my $fd;
3986
3987        my ($have_blame) = gitweb_check_feature('blame');
3988        if (!$have_blame) {
3989                die_error('403 Permission denied', "Permission denied");
3990        }
3991        die_error('404 Not Found', "File name not defined") if (!$file_name);
3992        $hash_base ||= git_get_head_hash($project);
3993        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3994        my %co = parse_commit($hash_base)
3995                or die_error(undef, "Reading commit failed");
3996        if (!defined $hash) {
3997                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3998                        or die_error(undef, "Error lookup file");
3999        }
4000        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
4001                or die_error(undef, "Open git-annotate failed");
4002        git_header_html();
4003        my $formats_nav =
4004                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
4005                        "blob") .
4006                " | " .
4007                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
4008                        "history") .
4009                " | " .
4010                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
4011                        "HEAD");
4012        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4013        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4014        git_print_page_path($file_name, 'blob', $hash_base);
4015        print "<div class=\"page_body\">\n";
4016        print <<HTML;
4017<table class="blame">
4018  <tr>
4019    <th>Commit</th>
4020    <th>Age</th>
4021    <th>Author</th>
4022    <th>Line</th>
4023    <th>Data</th>
4024  </tr>
4025HTML
4026        my @line_class = (qw(light dark));
4027        my $line_class_len = scalar (@line_class);
4028        my $line_class_num = $#line_class;
4029        while (my $line = <$fd>) {
4030                my $long_rev;
4031                my $short_rev;
4032                my $author;
4033                my $time;
4034                my $lineno;
4035                my $data;
4036                my $age;
4037                my $age_str;
4038                my $age_class;
4039
4040                chomp $line;
4041                $line_class_num = ($line_class_num + 1) % $line_class_len;
4042
4043                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
4044                        $long_rev = $1;
4045                        $author   = $2;
4046                        $time     = $3;
4047                        $lineno   = $4;
4048                        $data     = $5;
4049                } else {
4050                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
4051                        next;
4052                }
4053                $short_rev  = substr ($long_rev, 0, 8);
4054                $age        = time () - $time;
4055                $age_str    = age_string ($age);
4056                $age_str    =~ s/ /&nbsp;/g;
4057                $age_class  = age_class($age);
4058                $author     = esc_html ($author);
4059                $author     =~ s/ /&nbsp;/g;
4060
4061                $data = untabify($data);
4062                $data = esc_html ($data);
4063
4064                print <<HTML;
4065  <tr class="$line_class[$line_class_num]">
4066    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
4067    <td class="$age_class">$age_str</td>
4068    <td>$author</td>
4069    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
4070    <td class="pre">$data</td>
4071  </tr>
4072HTML
4073        } # while (my $line = <$fd>)
4074        print "</table>\n\n";
4075        close $fd
4076                or print "Reading blob failed.\n";
4077        print "</div>";
4078        git_footer_html();
4079}
4080
4081sub git_tags {
4082        my $head = git_get_head_hash($project);
4083        git_header_html();
4084        git_print_page_nav('','', $head,undef,$head);
4085        git_print_header_div('summary', $project);
4086
4087        my @tagslist = git_get_tags_list();
4088        if (@tagslist) {
4089                git_tags_body(\@tagslist);
4090        }
4091        git_footer_html();
4092}
4093
4094sub git_heads {
4095        my $head = git_get_head_hash($project);
4096        git_header_html();
4097        git_print_page_nav('','', $head,undef,$head);
4098        git_print_header_div('summary', $project);
4099
4100        my @headslist = git_get_heads_list();
4101        if (@headslist) {
4102                git_heads_body(\@headslist, $head);
4103        }
4104        git_footer_html();
4105}
4106
4107sub git_blob_plain {
4108        my $expires;
4109
4110        if (!defined $hash) {
4111                if (defined $file_name) {
4112                        my $base = $hash_base || git_get_head_hash($project);
4113                        $hash = git_get_hash_by_path($base, $file_name, "blob")
4114                                or die_error(undef, "Error lookup file");
4115                } else {
4116                        die_error(undef, "No file name defined");
4117                }
4118        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4119                # blobs defined by non-textual hash id's can be cached
4120                $expires = "+1d";
4121        }
4122
4123        my $type = shift;
4124        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
4125                or die_error(undef, "Couldn't cat $file_name, $hash");
4126
4127        $type ||= blob_mimetype($fd, $file_name);
4128
4129        # save as filename, even when no $file_name is given
4130        my $save_as = "$hash";
4131        if (defined $file_name) {
4132                $save_as = $file_name;
4133        } elsif ($type =~ m/^text\//) {
4134                $save_as .= '.txt';
4135        }
4136
4137        print $cgi->header(
4138                -type => "$type",
4139                -expires=>$expires,
4140                -content_disposition => 'inline; filename="' . "$save_as" . '"');
4141        undef $/;
4142        binmode STDOUT, ':raw';
4143        print <$fd>;
4144        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
4145        $/ = "\n";
4146        close $fd;
4147}
4148
4149sub git_blob {
4150        my $expires;
4151
4152        if (!defined $hash) {
4153                if (defined $file_name) {
4154                        my $base = $hash_base || git_get_head_hash($project);
4155                        $hash = git_get_hash_by_path($base, $file_name, "blob")
4156                                or die_error(undef, "Error lookup file");
4157                } else {
4158                        die_error(undef, "No file name defined");
4159                }
4160        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4161                # blobs defined by non-textual hash id's can be cached
4162                $expires = "+1d";
4163        }
4164
4165        my ($have_blame) = gitweb_check_feature('blame');
4166        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
4167                or die_error(undef, "Couldn't cat $file_name, $hash");
4168        my $mimetype = blob_mimetype($fd, $file_name);
4169        if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)!) {
4170                close $fd;
4171                return git_blob_plain($mimetype);
4172        }
4173        # we can have blame only for text/* mimetype
4174        $have_blame &&= ($mimetype =~ m!^text/!);
4175
4176        git_header_html(undef, $expires);
4177        my $formats_nav = '';
4178        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4179                if (defined $file_name) {
4180                        if ($have_blame) {
4181                                $formats_nav .=
4182                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
4183                                                               hash=>$hash, file_name=>$file_name)},
4184                                                "blame") .
4185                                        " | ";
4186                        }
4187                        $formats_nav .=
4188                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
4189                                                       hash=>$hash, file_name=>$file_name)},
4190                                        "history") .
4191                                " | " .
4192                                $cgi->a({-href => href(action=>"blob_plain",
4193                                                       hash=>$hash, file_name=>$file_name)},
4194                                        "raw") .
4195                                " | " .
4196                                $cgi->a({-href => href(action=>"blob",
4197                                                       hash_base=>"HEAD", file_name=>$file_name)},
4198                                        "HEAD");
4199                } else {
4200                        $formats_nav .=
4201                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
4202                }
4203                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4204                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4205        } else {
4206                print "<div class=\"page_nav\">\n" .
4207                      "<br/><br/></div>\n" .
4208                      "<div class=\"title\">$hash</div>\n";
4209        }
4210        git_print_page_path($file_name, "blob", $hash_base);
4211        print "<div class=\"page_body\">\n";
4212        if ($mimetype =~ m!^text/!) {
4213                my $nr;
4214                while (my $line = <$fd>) {
4215                        chomp $line;
4216                        $nr++;
4217                        $line = untabify($line);
4218                        printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
4219                               $nr, $nr, $nr, esc_html($line, -nbsp=>1);
4220                }
4221        } elsif ($mimetype =~ m!^image/!) {
4222                print qq!<img type="$mimetype"!;
4223                if ($file_name) {
4224                        print qq! alt="$file_name" title="$file_name"!;
4225                }
4226                print qq! src="! .
4227                      href(action=>"blob_plain", hash=>$hash,
4228                           hash_base=>$hash_base, file_name=>$file_name) .
4229                      qq!" />\n!;
4230        }
4231        close $fd
4232                or print "Reading blob failed.\n";
4233        print "</div>";
4234        git_footer_html();
4235}
4236
4237sub git_tree {
4238        if (!defined $hash_base) {
4239                $hash_base = "HEAD";
4240        }
4241        if (!defined $hash) {
4242                if (defined $file_name) {
4243                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
4244                } else {
4245                        $hash = $hash_base;
4246                }
4247        }
4248        $/ = "\0";
4249        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
4250                or die_error(undef, "Open git-ls-tree failed");
4251        my @entries = map { chomp; $_ } <$fd>;
4252        close $fd or die_error(undef, "Reading tree failed");
4253        $/ = "\n";
4254
4255        my $refs = git_get_references();
4256        my $ref = format_ref_marker($refs, $hash_base);
4257        git_header_html();
4258        my $basedir = '';
4259        my ($have_blame) = gitweb_check_feature('blame');
4260        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4261                my @views_nav = ();
4262                if (defined $file_name) {
4263                        push @views_nav,
4264                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
4265                                                       hash=>$hash, file_name=>$file_name)},
4266                                        "history"),
4267                                $cgi->a({-href => href(action=>"tree",
4268                                                       hash_base=>"HEAD", file_name=>$file_name)},
4269                                        "HEAD"),
4270                }
4271                my $snapshot_links = format_snapshot_links($hash);
4272                if (defined $snapshot_links) {
4273                        # FIXME: Should be available when we have no hash base as well.
4274                        push @views_nav, $snapshot_links;
4275                }
4276                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
4277                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
4278        } else {
4279                undef $hash_base;
4280                print "<div class=\"page_nav\">\n";
4281                print "<br/><br/></div>\n";
4282                print "<div class=\"title\">$hash</div>\n";
4283        }
4284        if (defined $file_name) {
4285                $basedir = $file_name;
4286                if ($basedir ne '' && substr($basedir, -1) ne '/') {
4287                        $basedir .= '/';
4288                }
4289        }
4290        git_print_page_path($file_name, 'tree', $hash_base);
4291        print "<div class=\"page_body\">\n";
4292        print "<table cellspacing=\"0\">\n";
4293        my $alternate = 1;
4294        # '..' (top directory) link if possible
4295        if (defined $hash_base &&
4296            defined $file_name && $file_name =~ m![^/]+$!) {
4297                if ($alternate) {
4298                        print "<tr class=\"dark\">\n";
4299                } else {
4300                        print "<tr class=\"light\">\n";
4301                }
4302                $alternate ^= 1;
4303
4304                my $up = $file_name;
4305                $up =~ s!/?[^/]+$!!;
4306                undef $up unless $up;
4307                # based on git_print_tree_entry
4308                print '<td class="mode">' . mode_str('040000') . "</td>\n";
4309                print '<td class="list">';
4310                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
4311                                             file_name=>$up)},
4312                              "..");
4313                print "</td>\n";
4314                print "<td class=\"link\"></td>\n";
4315
4316                print "</tr>\n";
4317        }
4318        foreach my $line (@entries) {
4319                my %t = parse_ls_tree_line($line, -z => 1);
4320
4321                if ($alternate) {
4322                        print "<tr class=\"dark\">\n";
4323                } else {
4324                        print "<tr class=\"light\">\n";
4325                }
4326                $alternate ^= 1;
4327
4328                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
4329
4330                print "</tr>\n";
4331        }
4332        print "</table>\n" .
4333              "</div>";
4334        git_footer_html();
4335}
4336
4337sub git_snapshot {
4338        my @supported_fmts = gitweb_check_feature('snapshot');
4339        @supported_fmts = filter_snapshot_fmts(@supported_fmts);
4340
4341        my $format = $cgi->param('sf');
4342        if (!@supported_fmts) {
4343                die_error('403 Permission denied', "Permission denied");
4344        }
4345        # default to first supported snapshot format
4346        $format ||= $supported_fmts[0];
4347        if ($format !~ m/^[a-z0-9]+$/) {
4348                die_error(undef, "Invalid snapshot format parameter");
4349        } elsif (!exists($known_snapshot_formats{$format})) {
4350                die_error(undef, "Unknown snapshot format");
4351        } elsif (!grep($_ eq $format, @supported_fmts)) {
4352                die_error(undef, "Unsupported snapshot format");
4353        }
4354
4355        if (!defined $hash) {
4356                $hash = git_get_head_hash($project);
4357        }
4358
4359        my $git_command = git_cmd_str();
4360        my $name = $project;
4361        $name =~ s,([^/])/*\.git$,$1,;
4362        $name = basename($name);
4363        my $filename = to_utf8($name);
4364        $name =~ s/\047/\047\\\047\047/g;
4365        my $cmd;
4366        $filename .= "-$hash$known_snapshot_formats{$format}{'suffix'}";
4367        $cmd = "$git_command archive " .
4368                "--format=$known_snapshot_formats{$format}{'format'} " .
4369                "--prefix=\'$name\'/ $hash";
4370        if (exists $known_snapshot_formats{$format}{'compressor'}) {
4371                $cmd .= ' | ' . join ' ', @{$known_snapshot_formats{$format}{'compressor'}};
4372        }
4373
4374        print $cgi->header(
4375                -type => $known_snapshot_formats{$format}{'type'},
4376                -content_disposition => 'inline; filename="' . "$filename" . '"',
4377                -status => '200 OK');
4378
4379        open my $fd, "-|", $cmd
4380                or die_error(undef, "Execute git-archive failed");
4381        binmode STDOUT, ':raw';
4382        print <$fd>;
4383        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
4384        close $fd;
4385}
4386
4387sub git_log {
4388        my $head = git_get_head_hash($project);
4389        if (!defined $hash) {
4390                $hash = $head;
4391        }
4392        if (!defined $page) {
4393                $page = 0;
4394        }
4395        my $refs = git_get_references();
4396
4397        my @commitlist = parse_commits($hash, 101, (100 * $page));
4398
4399        my $paging_nav = format_paging_nav('log', $hash, $head, $page, (100 * ($page+1)));
4400
4401        git_header_html();
4402        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
4403
4404        if (!@commitlist) {
4405                my %co = parse_commit($hash);
4406
4407                git_print_header_div('summary', $project);
4408                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
4409        }
4410        my $to = ($#commitlist >= 99) ? (99) : ($#commitlist);
4411        for (my $i = 0; $i <= $to; $i++) {
4412                my %co = %{$commitlist[$i]};
4413                next if !%co;
4414                my $commit = $co{'id'};
4415                my $ref = format_ref_marker($refs, $commit);
4416                my %ad = parse_date($co{'author_epoch'});
4417                git_print_header_div('commit',
4418                               "<span class=\"age\">$co{'age_string'}</span>" .
4419                               esc_html($co{'title'}) . $ref,
4420                               $commit);
4421                print "<div class=\"title_text\">\n" .
4422                      "<div class=\"log_link\">\n" .
4423                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
4424                      " | " .
4425                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
4426                      " | " .
4427                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
4428                      "<br/>\n" .
4429                      "</div>\n" .
4430                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
4431                      "</div>\n";
4432
4433                print "<div class=\"log_body\">\n";
4434                git_print_log($co{'comment'}, -final_empty_line=> 1);
4435                print "</div>\n";
4436        }
4437        if ($#commitlist >= 100) {
4438                print "<div class=\"page_nav\">\n";
4439                print $cgi->a({-href => href(action=>"log", hash=>$hash, page=>$page+1),
4440                               -accesskey => "n", -title => "Alt-n"}, "next");
4441                print "</div>\n";
4442        }
4443        git_footer_html();
4444}
4445
4446sub git_commit {
4447        $hash ||= $hash_base || "HEAD";
4448        my %co = parse_commit($hash);
4449        if (!%co) {
4450                die_error(undef, "Unknown commit object");
4451        }
4452        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
4453        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
4454
4455        my $parent  = $co{'parent'};
4456        my $parents = $co{'parents'}; # listref
4457
4458        # we need to prepare $formats_nav before any parameter munging
4459        my $formats_nav;
4460        if (!defined $parent) {
4461                # --root commitdiff
4462                $formats_nav .= '(initial)';
4463        } elsif (@$parents == 1) {
4464                # single parent commit
4465                $formats_nav .=
4466                        '(parent: ' .
4467                        $cgi->a({-href => href(action=>"commit",
4468                                               hash=>$parent)},
4469                                esc_html(substr($parent, 0, 7))) .
4470                        ')';
4471        } else {
4472                # merge commit
4473                $formats_nav .=
4474                        '(merge: ' .
4475                        join(' ', map {
4476                                $cgi->a({-href => href(action=>"commit",
4477                                                       hash=>$_)},
4478                                        esc_html(substr($_, 0, 7)));
4479                        } @$parents ) .
4480                        ')';
4481        }
4482
4483        if (!defined $parent) {
4484                $parent = "--root";
4485        }
4486        my @difftree;
4487        open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
4488                @diff_opts,
4489                (@$parents <= 1 ? $parent : '-c'),
4490                $hash, "--"
4491                or die_error(undef, "Open git-diff-tree failed");
4492        @difftree = map { chomp; $_ } <$fd>;
4493        close $fd or die_error(undef, "Reading git-diff-tree failed");
4494
4495        # non-textual hash id's can be cached
4496        my $expires;
4497        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4498                $expires = "+1d";
4499        }
4500        my $refs = git_get_references();
4501        my $ref = format_ref_marker($refs, $co{'id'});
4502
4503        git_header_html(undef, $expires);
4504        git_print_page_nav('commit', '',
4505                           $hash, $co{'tree'}, $hash,
4506                           $formats_nav);
4507
4508        if (defined $co{'parent'}) {
4509                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
4510        } else {
4511                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
4512        }
4513        print "<div class=\"title_text\">\n" .
4514              "<table cellspacing=\"0\">\n";
4515        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
4516              "<tr>" .
4517              "<td></td><td> $ad{'rfc2822'}";
4518        if ($ad{'hour_local'} < 6) {
4519                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
4520                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
4521        } else {
4522                printf(" (%02d:%02d %s)",
4523                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
4524        }
4525        print "</td>" .
4526              "</tr>\n";
4527        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
4528        print "<tr><td></td><td> $cd{'rfc2822'}" .
4529              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
4530              "</td></tr>\n";
4531        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
4532        print "<tr>" .
4533              "<td>tree</td>" .
4534              "<td class=\"sha1\">" .
4535              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
4536                       class => "list"}, $co{'tree'}) .
4537              "</td>" .
4538              "<td class=\"link\">" .
4539              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
4540                      "tree");
4541        my $snapshot_links = format_snapshot_links($hash);
4542        if (defined $snapshot_links) {
4543                print " | " . $snapshot_links;
4544        }
4545        print "</td>" .
4546              "</tr>\n";
4547
4548        foreach my $par (@$parents) {
4549                print "<tr>" .
4550                      "<td>parent</td>" .
4551                      "<td class=\"sha1\">" .
4552                      $cgi->a({-href => href(action=>"commit", hash=>$par),
4553                               class => "list"}, $par) .
4554                      "</td>" .
4555                      "<td class=\"link\">" .
4556                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
4557                      " | " .
4558                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
4559                      "</td>" .
4560                      "</tr>\n";
4561        }
4562        print "</table>".
4563              "</div>\n";
4564
4565        print "<div class=\"page_body\">\n";
4566        git_print_log($co{'comment'});
4567        print "</div>\n";
4568
4569        git_difftree_body(\@difftree, $hash, @$parents);
4570
4571        git_footer_html();
4572}
4573
4574sub git_object {
4575        # object is defined by:
4576        # - hash or hash_base alone
4577        # - hash_base and file_name
4578        my $type;
4579
4580        # - hash or hash_base alone
4581        if ($hash || ($hash_base && !defined $file_name)) {
4582                my $object_id = $hash || $hash_base;
4583
4584                my $git_command = git_cmd_str();
4585                open my $fd, "-|", "$git_command cat-file -t $object_id 2>/dev/null"
4586                        or die_error('404 Not Found', "Object does not exist");
4587                $type = <$fd>;
4588                chomp $type;
4589                close $fd
4590                        or die_error('404 Not Found', "Object does not exist");
4591
4592        # - hash_base and file_name
4593        } elsif ($hash_base && defined $file_name) {
4594                $file_name =~ s,/+$,,;
4595
4596                system(git_cmd(), "cat-file", '-e', $hash_base) == 0
4597                        or die_error('404 Not Found', "Base object does not exist");
4598
4599                # here errors should not hapen
4600                open my $fd, "-|", git_cmd(), "ls-tree", $hash_base, "--", $file_name
4601                        or die_error(undef, "Open git-ls-tree failed");
4602                my $line = <$fd>;
4603                close $fd;
4604
4605                #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
4606                unless ($line && $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/) {
4607                        die_error('404 Not Found', "File or directory for given base does not exist");
4608                }
4609                $type = $2;
4610                $hash = $3;
4611        } else {
4612                die_error('404 Not Found', "Not enough information to find object");
4613        }
4614
4615        print $cgi->redirect(-uri => href(action=>$type, -full=>1,
4616                                          hash=>$hash, hash_base=>$hash_base,
4617                                          file_name=>$file_name),
4618                             -status => '302 Found');
4619}
4620
4621sub git_blobdiff {
4622        my $format = shift || 'html';
4623
4624        my $fd;
4625        my @difftree;
4626        my %diffinfo;
4627        my $expires;
4628
4629        # preparing $fd and %diffinfo for git_patchset_body
4630        # new style URI
4631        if (defined $hash_base && defined $hash_parent_base) {
4632                if (defined $file_name) {
4633                        # read raw output
4634                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4635                                $hash_parent_base, $hash_base,
4636                                "--", (defined $file_parent ? $file_parent : ()), $file_name
4637                                or die_error(undef, "Open git-diff-tree failed");
4638                        @difftree = map { chomp; $_ } <$fd>;
4639                        close $fd
4640                                or die_error(undef, "Reading git-diff-tree failed");
4641                        @difftree
4642                                or die_error('404 Not Found', "Blob diff not found");
4643
4644                } elsif (defined $hash &&
4645                         $hash =~ /[0-9a-fA-F]{40}/) {
4646                        # try to find filename from $hash
4647
4648                        # read filtered raw output
4649                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4650                                $hash_parent_base, $hash_base, "--"
4651                                or die_error(undef, "Open git-diff-tree failed");
4652                        @difftree =
4653                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
4654                                # $hash == to_id
4655                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
4656                                map { chomp; $_ } <$fd>;
4657                        close $fd
4658                                or die_error(undef, "Reading git-diff-tree failed");
4659                        @difftree
4660                                or die_error('404 Not Found', "Blob diff not found");
4661
4662                } else {
4663                        die_error('404 Not Found', "Missing one of the blob diff parameters");
4664                }
4665
4666                if (@difftree > 1) {
4667                        die_error('404 Not Found', "Ambiguous blob diff specification");
4668                }
4669
4670                %diffinfo = parse_difftree_raw_line($difftree[0]);
4671                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
4672                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
4673
4674                $hash_parent ||= $diffinfo{'from_id'};
4675                $hash        ||= $diffinfo{'to_id'};
4676
4677                # non-textual hash id's can be cached
4678                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
4679                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
4680                        $expires = '+1d';
4681                }
4682
4683                # open patch output
4684                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4685                        '-p', ($format eq 'html' ? "--full-index" : ()),
4686                        $hash_parent_base, $hash_base,
4687                        "--", (defined $file_parent ? $file_parent : ()), $file_name
4688                        or die_error(undef, "Open git-diff-tree failed");
4689        }
4690
4691        # old/legacy style URI
4692        if (!%diffinfo && # if new style URI failed
4693            defined $hash && defined $hash_parent) {
4694                # fake git-diff-tree raw output
4695                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
4696                $diffinfo{'from_id'} = $hash_parent;
4697                $diffinfo{'to_id'}   = $hash;
4698                if (defined $file_name) {
4699                        if (defined $file_parent) {
4700                                $diffinfo{'status'} = '2';
4701                                $diffinfo{'from_file'} = $file_parent;
4702                                $diffinfo{'to_file'}   = $file_name;
4703                        } else { # assume not renamed
4704                                $diffinfo{'status'} = '1';
4705                                $diffinfo{'from_file'} = $file_name;
4706                                $diffinfo{'to_file'}   = $file_name;
4707                        }
4708                } else { # no filename given
4709                        $diffinfo{'status'} = '2';
4710                        $diffinfo{'from_file'} = $hash_parent;
4711                        $diffinfo{'to_file'}   = $hash;
4712                }
4713
4714                # non-textual hash id's can be cached
4715                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
4716                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4717                        $expires = '+1d';
4718                }
4719
4720                # open patch output
4721                open $fd, "-|", git_cmd(), "diff", @diff_opts,
4722                        '-p', ($format eq 'html' ? "--full-index" : ()),
4723                        $hash_parent, $hash, "--"
4724                        or die_error(undef, "Open git-diff failed");
4725        } else  {
4726                die_error('404 Not Found', "Missing one of the blob diff parameters")
4727                        unless %diffinfo;
4728        }
4729
4730        # header
4731        if ($format eq 'html') {
4732                my $formats_nav =
4733                        $cgi->a({-href => href(action=>"blobdiff_plain",
4734                                               hash=>$hash, hash_parent=>$hash_parent,
4735                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
4736                                               file_name=>$file_name, file_parent=>$file_parent)},
4737                                "raw");
4738                git_header_html(undef, $expires);
4739                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4740                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4741                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4742                } else {
4743                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
4744                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
4745                }
4746                if (defined $file_name) {
4747                        git_print_page_path($file_name, "blob", $hash_base);
4748                } else {
4749                        print "<div class=\"page_path\"></div>\n";
4750                }
4751
4752        } elsif ($format eq 'plain') {
4753                print $cgi->header(
4754                        -type => 'text/plain',
4755                        -charset => 'utf-8',
4756                        -expires => $expires,
4757                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
4758
4759                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4760
4761        } else {
4762                die_error(undef, "Unknown blobdiff format");
4763        }
4764
4765        # patch
4766        if ($format eq 'html') {
4767                print "<div class=\"page_body\">\n";
4768
4769                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
4770                close $fd;
4771
4772                print "</div>\n"; # class="page_body"
4773                git_footer_html();
4774
4775        } else {
4776                while (my $line = <$fd>) {
4777                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
4778                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
4779
4780                        print $line;
4781
4782                        last if $line =~ m!^\+\+\+!;
4783                }
4784                local $/ = undef;
4785                print <$fd>;
4786                close $fd;
4787        }
4788}
4789
4790sub git_blobdiff_plain {
4791        git_blobdiff('plain');
4792}
4793
4794sub git_commitdiff {
4795        my $format = shift || 'html';
4796        $hash ||= $hash_base || "HEAD";
4797        my %co = parse_commit($hash);
4798        if (!%co) {
4799                die_error(undef, "Unknown commit object");
4800        }
4801
4802        # choose format for commitdiff for merge
4803        if (! defined $hash_parent && @{$co{'parents'}} > 1) {
4804                $hash_parent = '--cc';
4805        }
4806        # we need to prepare $formats_nav before almost any parameter munging
4807        my $formats_nav;
4808        if ($format eq 'html') {
4809                $formats_nav =
4810                        $cgi->a({-href => href(action=>"commitdiff_plain",
4811                                               hash=>$hash, hash_parent=>$hash_parent)},
4812                                "raw");
4813
4814                if (defined $hash_parent &&
4815                    $hash_parent ne '-c' && $hash_parent ne '--cc') {
4816                        # commitdiff with two commits given
4817                        my $hash_parent_short = $hash_parent;
4818                        if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4819                                $hash_parent_short = substr($hash_parent, 0, 7);
4820                        }
4821                        $formats_nav .=
4822                                ' (from';
4823                        for (my $i = 0; $i < @{$co{'parents'}}; $i++) {
4824                                if ($co{'parents'}[$i] eq $hash_parent) {
4825                                        $formats_nav .= ' parent ' . ($i+1);
4826                                        last;
4827                                }
4828                        }
4829                        $formats_nav .= ': ' .
4830                                $cgi->a({-href => href(action=>"commitdiff",
4831                                                       hash=>$hash_parent)},
4832                                        esc_html($hash_parent_short)) .
4833                                ')';
4834                } elsif (!$co{'parent'}) {
4835                        # --root commitdiff
4836                        $formats_nav .= ' (initial)';
4837                } elsif (scalar @{$co{'parents'}} == 1) {
4838                        # single parent commit
4839                        $formats_nav .=
4840                                ' (parent: ' .
4841                                $cgi->a({-href => href(action=>"commitdiff",
4842                                                       hash=>$co{'parent'})},
4843                                        esc_html(substr($co{'parent'}, 0, 7))) .
4844                                ')';
4845                } else {
4846                        # merge commit
4847                        if ($hash_parent eq '--cc') {
4848                                $formats_nav .= ' | ' .
4849                                        $cgi->a({-href => href(action=>"commitdiff",
4850                                                               hash=>$hash, hash_parent=>'-c')},
4851                                                'combined');
4852                        } else { # $hash_parent eq '-c'
4853                                $formats_nav .= ' | ' .
4854                                        $cgi->a({-href => href(action=>"commitdiff",
4855                                                               hash=>$hash, hash_parent=>'--cc')},
4856                                                'compact');
4857                        }
4858                        $formats_nav .=
4859                                ' (merge: ' .
4860                                join(' ', map {
4861                                        $cgi->a({-href => href(action=>"commitdiff",
4862                                                               hash=>$_)},
4863                                                esc_html(substr($_, 0, 7)));
4864                                } @{$co{'parents'}} ) .
4865                                ')';
4866                }
4867        }
4868
4869        my $hash_parent_param = $hash_parent;
4870        if (!defined $hash_parent_param) {
4871                # --cc for multiple parents, --root for parentless
4872                $hash_parent_param =
4873                        @{$co{'parents'}} > 1 ? '--cc' : $co{'parent'} || '--root';
4874        }
4875
4876        # read commitdiff
4877        my $fd;
4878        my @difftree;
4879        if ($format eq 'html') {
4880                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4881                        "--no-commit-id", "--patch-with-raw", "--full-index",
4882                        $hash_parent_param, $hash, "--"
4883                        or die_error(undef, "Open git-diff-tree failed");
4884
4885                while (my $line = <$fd>) {
4886                        chomp $line;
4887                        # empty line ends raw part of diff-tree output
4888                        last unless $line;
4889                        push @difftree, scalar parse_difftree_raw_line($line);
4890                }
4891
4892        } elsif ($format eq 'plain') {
4893                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4894                        '-p', $hash_parent_param, $hash, "--"
4895                        or die_error(undef, "Open git-diff-tree failed");
4896
4897        } else {
4898                die_error(undef, "Unknown commitdiff format");
4899        }
4900
4901        # non-textual hash id's can be cached
4902        my $expires;
4903        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4904                $expires = "+1d";
4905        }
4906
4907        # write commit message
4908        if ($format eq 'html') {
4909                my $refs = git_get_references();
4910                my $ref = format_ref_marker($refs, $co{'id'});
4911
4912                git_header_html(undef, $expires);
4913                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
4914                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
4915                git_print_authorship(\%co);
4916                print "<div class=\"page_body\">\n";
4917                if (@{$co{'comment'}} > 1) {
4918                        print "<div class=\"log\">\n";
4919                        git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
4920                        print "</div>\n"; # class="log"
4921                }
4922
4923        } elsif ($format eq 'plain') {
4924                my $refs = git_get_references("tags");
4925                my $tagname = git_get_rev_name_tags($hash);
4926                my $filename = basename($project) . "-$hash.patch";
4927
4928                print $cgi->header(
4929                        -type => 'text/plain',
4930                        -charset => 'utf-8',
4931                        -expires => $expires,
4932                        -content_disposition => 'inline; filename="' . "$filename" . '"');
4933                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
4934                print <<TEXT;
4935From: $co{'author'}
4936Date: $ad{'rfc2822'} ($ad{'tz_local'})
4937Subject: $co{'title'}
4938TEXT
4939                print "X-Git-Tag: $tagname\n" if $tagname;
4940                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4941
4942                foreach my $line (@{$co{'comment'}}) {
4943                        print "$line\n";
4944                }
4945                print "---\n\n";
4946        }
4947
4948        # write patch
4949        if ($format eq 'html') {
4950                my $use_parents = !defined $hash_parent ||
4951                        $hash_parent eq '-c' || $hash_parent eq '--cc';
4952                git_difftree_body(\@difftree, $hash,
4953                                  $use_parents ? @{$co{'parents'}} : $hash_parent);
4954                print "<br/>\n";
4955
4956                git_patchset_body($fd, \@difftree, $hash,
4957                                  $use_parents ? @{$co{'parents'}} : $hash_parent);
4958                close $fd;
4959                print "</div>\n"; # class="page_body"
4960                git_footer_html();
4961
4962        } elsif ($format eq 'plain') {
4963                local $/ = undef;
4964                print <$fd>;
4965                close $fd
4966                        or print "Reading git-diff-tree failed\n";
4967        }
4968}
4969
4970sub git_commitdiff_plain {
4971        git_commitdiff('plain');
4972}
4973
4974sub git_history {
4975        if (!defined $hash_base) {
4976                $hash_base = git_get_head_hash($project);
4977        }
4978        if (!defined $page) {
4979                $page = 0;
4980        }
4981        my $ftype;
4982        my %co = parse_commit($hash_base);
4983        if (!%co) {
4984                die_error(undef, "Unknown commit object");
4985        }
4986
4987        my $refs = git_get_references();
4988        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
4989
4990        if (!defined $hash && defined $file_name) {
4991                $hash = git_get_hash_by_path($hash_base, $file_name);
4992        }
4993        if (defined $hash) {
4994                $ftype = git_get_type($hash);
4995        }
4996
4997        my @commitlist = parse_commits($hash_base, 101, (100 * $page), "--full-history", $file_name);
4998
4999        my $paging_nav = '';
5000        if ($page > 0) {
5001                $paging_nav .=
5002                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
5003                                               file_name=>$file_name)},
5004                                "first");
5005                $paging_nav .= " &sdot; " .
5006                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
5007                                               file_name=>$file_name, page=>$page-1),
5008                                 -accesskey => "p", -title => "Alt-p"}, "prev");
5009        } else {
5010                $paging_nav .= "first";
5011                $paging_nav .= " &sdot; prev";
5012        }
5013        if ($#commitlist >= 100) {
5014                $paging_nav .= " &sdot; " .
5015                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
5016                                               file_name=>$file_name, page=>$page+1),
5017                                 -accesskey => "n", -title => "Alt-n"}, "next");
5018        } else {
5019                $paging_nav .= " &sdot; next";
5020        }
5021        my $next_link = '';
5022        if ($#commitlist >= 100) {
5023                $next_link =
5024                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
5025                                               file_name=>$file_name, page=>$page+1),
5026                                 -accesskey => "n", -title => "Alt-n"}, "next");
5027        }
5028
5029        git_header_html();
5030        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
5031        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
5032        git_print_page_path($file_name, $ftype, $hash_base);
5033
5034        git_history_body(\@commitlist, 0, 99,
5035                         $refs, $hash_base, $ftype, $next_link);
5036
5037        git_footer_html();
5038}
5039
5040sub git_search {
5041        my ($have_search) = gitweb_check_feature('search');
5042        if (!$have_search) {
5043                die_error('403 Permission denied', "Permission denied");
5044        }
5045        if (!defined $searchtext) {
5046                die_error(undef, "Text field empty");
5047        }
5048        if (!defined $hash) {
5049                $hash = git_get_head_hash($project);
5050        }
5051        my %co = parse_commit($hash);
5052        if (!%co) {
5053                die_error(undef, "Unknown commit object");
5054        }
5055        if (!defined $page) {
5056                $page = 0;
5057        }
5058
5059        $searchtype ||= 'commit';
5060        if ($searchtype eq 'pickaxe') {
5061                # pickaxe may take all resources of your box and run for several minutes
5062                # with every query - so decide by yourself how public you make this feature
5063                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
5064                if (!$have_pickaxe) {
5065                        die_error('403 Permission denied', "Permission denied");
5066                }
5067        }
5068        if ($searchtype eq 'grep') {
5069                my ($have_grep) = gitweb_check_feature('grep');
5070                if (!$have_grep) {
5071                        die_error('403 Permission denied', "Permission denied");
5072                }
5073        }
5074
5075        git_header_html();
5076
5077        if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
5078                my $greptype;
5079                if ($searchtype eq 'commit') {
5080                        $greptype = "--grep=";
5081                } elsif ($searchtype eq 'author') {
5082                        $greptype = "--author=";
5083                } elsif ($searchtype eq 'committer') {
5084                        $greptype = "--committer=";
5085                }
5086                $greptype .= $search_regexp;
5087                my @commitlist = parse_commits($hash, 101, (100 * $page), $greptype);
5088
5089                my $paging_nav = '';
5090                if ($page > 0) {
5091                        $paging_nav .=
5092                                $cgi->a({-href => href(action=>"search", hash=>$hash,
5093                                                       searchtext=>$searchtext, searchtype=>$searchtype)},
5094                                        "first");
5095                        $paging_nav .= " &sdot; " .
5096                                $cgi->a({-href => href(action=>"search", hash=>$hash,
5097                                                       searchtext=>$searchtext, searchtype=>$searchtype,
5098                                                       page=>$page-1),
5099                                         -accesskey => "p", -title => "Alt-p"}, "prev");
5100                } else {
5101                        $paging_nav .= "first";
5102                        $paging_nav .= " &sdot; prev";
5103                }
5104                if ($#commitlist >= 100) {
5105                        $paging_nav .= " &sdot; " .
5106                                $cgi->a({-href => href(action=>"search", hash=>$hash,
5107                                                       searchtext=>$searchtext, searchtype=>$searchtype,
5108                                                       page=>$page+1),
5109                                         -accesskey => "n", -title => "Alt-n"}, "next");
5110                } else {
5111                        $paging_nav .= " &sdot; next";
5112                }
5113                my $next_link = '';
5114                if ($#commitlist >= 100) {
5115                        $next_link =
5116                                $cgi->a({-href => href(action=>"search", hash=>$hash,
5117                                                       searchtext=>$searchtext, searchtype=>$searchtype,
5118                                                       page=>$page+1),
5119                                         -accesskey => "n", -title => "Alt-n"}, "next");
5120                }
5121
5122                git_print_page_nav('','', $hash,$co{'tree'},$hash, $paging_nav);
5123                git_print_header_div('commit', esc_html($co{'title'}), $hash);
5124                git_search_grep_body(\@commitlist, 0, 99, $next_link);
5125        }
5126
5127        if ($searchtype eq 'pickaxe') {
5128                git_print_page_nav('','', $hash,$co{'tree'},$hash);
5129                git_print_header_div('commit', esc_html($co{'title'}), $hash);
5130
5131                print "<table cellspacing=\"0\">\n";
5132                my $alternate = 1;
5133                $/ = "\n";
5134                my $git_command = git_cmd_str();
5135                my $searchqtext = $searchtext;
5136                $searchqtext =~ s/'/'\\''/;
5137                open my $fd, "-|", "$git_command rev-list $hash | " .
5138                        "$git_command diff-tree -r --stdin -S\'$searchqtext\'";
5139                undef %co;
5140                my @files;
5141                while (my $line = <$fd>) {
5142                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
5143                                my %set;
5144                                $set{'file'} = $6;
5145                                $set{'from_id'} = $3;
5146                                $set{'to_id'} = $4;
5147                                $set{'id'} = $set{'to_id'};
5148                                if ($set{'id'} =~ m/0{40}/) {
5149                                        $set{'id'} = $set{'from_id'};
5150                                }
5151                                if ($set{'id'} =~ m/0{40}/) {
5152                                        next;
5153                                }
5154                                push @files, \%set;
5155                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
5156                                if (%co) {
5157                                        if ($alternate) {
5158                                                print "<tr class=\"dark\">\n";
5159                                        } else {
5160                                                print "<tr class=\"light\">\n";
5161                                        }
5162                                        $alternate ^= 1;
5163                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
5164                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
5165                                              "<td>" .
5166                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
5167                                                      -class => "list subject"},
5168                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
5169                                        while (my $setref = shift @files) {
5170                                                my %set = %$setref;
5171                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
5172                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
5173                                                              -class => "list"},
5174                                                              "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
5175                                                      "<br/>\n";
5176                                        }
5177                                        print "</td>\n" .
5178                                              "<td class=\"link\">" .
5179                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
5180                                              " | " .
5181                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
5182                                        print "</td>\n" .
5183                                              "</tr>\n";
5184                                }
5185                                %co = parse_commit($1);
5186                        }
5187                }
5188                close $fd;
5189
5190                print "</table>\n";
5191        }
5192
5193        if ($searchtype eq 'grep') {
5194                git_print_page_nav('','', $hash,$co{'tree'},$hash);
5195                git_print_header_div('commit', esc_html($co{'title'}), $hash);
5196
5197                print "<table cellspacing=\"0\">\n";
5198                my $alternate = 1;
5199                my $matches = 0;
5200                $/ = "\n";
5201                open my $fd, "-|", git_cmd(), 'grep', '-n', '-i', '-E', $searchtext, $co{'tree'};
5202                my $lastfile = '';
5203                while (my $line = <$fd>) {
5204                        chomp $line;
5205                        my ($file, $lno, $ltext, $binary);
5206                        last if ($matches++ > 1000);
5207                        if ($line =~ /^Binary file (.+) matches$/) {
5208                                $file = $1;
5209                                $binary = 1;
5210                        } else {
5211                                (undef, $file, $lno, $ltext) = split(/:/, $line, 4);
5212                        }
5213                        if ($file ne $lastfile) {
5214                                $lastfile and print "</td></tr>\n";
5215                                if ($alternate++) {
5216                                        print "<tr class=\"dark\">\n";
5217                                } else {
5218                                        print "<tr class=\"light\">\n";
5219                                }
5220                                print "<td class=\"list\">".
5221                                        $cgi->a({-href => href(action=>"blob", hash=>$co{'hash'},
5222                                                               file_name=>"$file"),
5223                                                -class => "list"}, esc_path($file));
5224                                print "</td><td>\n";
5225                                $lastfile = $file;
5226                        }
5227                        if ($binary) {
5228                                print "<div class=\"binary\">Binary file</div>\n";
5229                        } else {
5230                                $ltext = untabify($ltext);
5231                                if ($ltext =~ m/^(.*)($searchtext)(.*)$/i) {
5232                                        $ltext = esc_html($1, -nbsp=>1);
5233                                        $ltext .= '<span class="match">';
5234                                        $ltext .= esc_html($2, -nbsp=>1);
5235                                        $ltext .= '</span>';
5236                                        $ltext .= esc_html($3, -nbsp=>1);
5237                                } else {
5238                                        $ltext = esc_html($ltext, -nbsp=>1);
5239                                }
5240                                print "<div class=\"pre\">" .
5241                                        $cgi->a({-href => href(action=>"blob", hash=>$co{'hash'},
5242                                                               file_name=>"$file").'#l'.$lno,
5243                                                -class => "linenr"}, sprintf('%4i', $lno))
5244                                        . ' ' .  $ltext . "</div>\n";
5245                        }
5246                }
5247                if ($lastfile) {
5248                        print "</td></tr>\n";
5249                        if ($matches > 1000) {
5250                                print "<div class=\"diff nodifferences\">Too many matches, listing trimmed</div>\n";
5251                        }
5252                } else {
5253                        print "<div class=\"diff nodifferences\">No matches found</div>\n";
5254                }
5255                close $fd;
5256
5257                print "</table>\n";
5258        }
5259        git_footer_html();
5260}
5261
5262sub git_search_help {
5263        git_header_html();
5264        git_print_page_nav('','', $hash,$hash,$hash);
5265        print <<EOT;
5266<dl>
5267<dt><b>commit</b></dt>
5268<dd>The commit messages and authorship information will be scanned for the given string.</dd>
5269EOT
5270        my ($have_grep) = gitweb_check_feature('grep');
5271        if ($have_grep) {
5272                print <<EOT;
5273<dt><b>grep</b></dt>
5274<dd>All files in the currently selected tree (HEAD unless you are explicitly browsing
5275    a different one) are searched for the given
5276<a href="http://en.wikipedia.org/wiki/Regular_expression">regular expression</a>
5277(POSIX extended) and the matches are listed. On large
5278trees, this search can take a while and put some strain on the server, so please use it with
5279some consideration.</dd>
5280EOT
5281        }
5282        print <<EOT;
5283<dt><b>author</b></dt>
5284<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
5285<dt><b>committer</b></dt>
5286<dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
5287EOT
5288        my ($have_pickaxe) = gitweb_check_feature('pickaxe');
5289        if ($have_pickaxe) {
5290                print <<EOT;
5291<dt><b>pickaxe</b></dt>
5292<dd>All commits that caused the string to appear or disappear from any file (changes that
5293added, removed or "modified" the string) will be listed. This search can take a while and
5294takes a lot of strain on the server, so please use it wisely.</dd>
5295EOT
5296        }
5297        print "</dl>\n";
5298        git_footer_html();
5299}
5300
5301sub git_shortlog {
5302        my $head = git_get_head_hash($project);
5303        if (!defined $hash) {
5304                $hash = $head;
5305        }
5306        if (!defined $page) {
5307                $page = 0;
5308        }
5309        my $refs = git_get_references();
5310
5311        my @commitlist = parse_commits($hash, 101, (100 * $page));
5312
5313        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, (100 * ($page+1)));
5314        my $next_link = '';
5315        if ($#commitlist >= 100) {
5316                $next_link =
5317                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
5318                                 -accesskey => "n", -title => "Alt-n"}, "next");
5319        }
5320
5321        git_header_html();
5322        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
5323        git_print_header_div('summary', $project);
5324
5325        git_shortlog_body(\@commitlist, 0, 99, $refs, $next_link);
5326
5327        git_footer_html();
5328}
5329
5330## ......................................................................
5331## feeds (RSS, Atom; OPML)
5332
5333sub git_feed {
5334        my $format = shift || 'atom';
5335        my ($have_blame) = gitweb_check_feature('blame');
5336
5337        # Atom: http://www.atomenabled.org/developers/syndication/
5338        # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
5339        if ($format ne 'rss' && $format ne 'atom') {
5340                die_error(undef, "Unknown web feed format");
5341        }
5342
5343        # log/feed of current (HEAD) branch, log of given branch, history of file/directory
5344        my $head = $hash || 'HEAD';
5345        my @commitlist = parse_commits($head, 150, 0, undef, $file_name);
5346
5347        my %latest_commit;
5348        my %latest_date;
5349        my $content_type = "application/$format+xml";
5350        if (defined $cgi->http('HTTP_ACCEPT') &&
5351                 $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
5352                # browser (feed reader) prefers text/xml
5353                $content_type = 'text/xml';
5354        }
5355        if (defined($commitlist[0])) {
5356                %latest_commit = %{$commitlist[0]};
5357                %latest_date   = parse_date($latest_commit{'author_epoch'});
5358                print $cgi->header(
5359                        -type => $content_type,
5360                        -charset => 'utf-8',
5361                        -last_modified => $latest_date{'rfc2822'});
5362        } else {
5363                print $cgi->header(
5364                        -type => $content_type,
5365                        -charset => 'utf-8');
5366        }
5367
5368        # Optimization: skip generating the body if client asks only
5369        # for Last-Modified date.
5370        return if ($cgi->request_method() eq 'HEAD');
5371
5372        # header variables
5373        my $title = "$site_name - $project/$action";
5374        my $feed_type = 'log';
5375        if (defined $hash) {
5376                $title .= " - '$hash'";
5377                $feed_type = 'branch log';
5378                if (defined $file_name) {
5379                        $title .= " :: $file_name";
5380                        $feed_type = 'history';
5381                }
5382        } elsif (defined $file_name) {
5383                $title .= " - $file_name";
5384                $feed_type = 'history';
5385        }
5386        $title .= " $feed_type";
5387        my $descr = git_get_project_description($project);
5388        if (defined $descr) {
5389                $descr = esc_html($descr);
5390        } else {
5391                $descr = "$project " .
5392                         ($format eq 'rss' ? 'RSS' : 'Atom') .
5393                         " feed";
5394        }
5395        my $owner = git_get_project_owner($project);
5396        $owner = esc_html($owner);
5397
5398        #header
5399        my $alt_url;
5400        if (defined $file_name) {
5401                $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
5402        } elsif (defined $hash) {
5403                $alt_url = href(-full=>1, action=>"log", hash=>$hash);
5404        } else {
5405                $alt_url = href(-full=>1, action=>"summary");
5406        }
5407        print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
5408        if ($format eq 'rss') {
5409                print <<XML;
5410<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
5411<channel>
5412XML
5413                print "<title>$title</title>\n" .
5414                      "<link>$alt_url</link>\n" .
5415                      "<description>$descr</description>\n" .
5416                      "<language>en</language>\n";
5417        } elsif ($format eq 'atom') {
5418                print <<XML;
5419<feed xmlns="http://www.w3.org/2005/Atom">
5420XML
5421                print "<title>$title</title>\n" .
5422                      "<subtitle>$descr</subtitle>\n" .
5423                      '<link rel="alternate" type="text/html" href="' .
5424                      $alt_url . '" />' . "\n" .
5425                      '<link rel="self" type="' . $content_type . '" href="' .
5426                      $cgi->self_url() . '" />' . "\n" .
5427                      "<id>" . href(-full=>1) . "</id>\n" .
5428                      # use project owner for feed author
5429                      "<author><name>$owner</name></author>\n";
5430                if (defined $favicon) {
5431                        print "<icon>" . esc_url($favicon) . "</icon>\n";
5432                }
5433                if (defined $logo_url) {
5434                        # not twice as wide as tall: 72 x 27 pixels
5435                        print "<logo>" . esc_url($logo) . "</logo>\n";
5436                }
5437                if (! %latest_date) {
5438                        # dummy date to keep the feed valid until commits trickle in:
5439                        print "<updated>1970-01-01T00:00:00Z</updated>\n";
5440                } else {
5441                        print "<updated>$latest_date{'iso-8601'}</updated>\n";
5442                }
5443        }
5444
5445        # contents
5446        for (my $i = 0; $i <= $#commitlist; $i++) {
5447                my %co = %{$commitlist[$i]};
5448                my $commit = $co{'id'};
5449                # we read 150, we always show 30 and the ones more recent than 48 hours
5450                if (($i >= 20) && ((time - $co{'author_epoch'}) > 48*60*60)) {
5451                        last;
5452                }
5453                my %cd = parse_date($co{'author_epoch'});
5454
5455                # get list of changed files
5456                open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
5457                        $co{'parent'} || "--root",
5458                        $co{'id'}, "--", (defined $file_name ? $file_name : ())
5459                        or next;
5460                my @difftree = map { chomp; $_ } <$fd>;
5461                close $fd
5462                        or next;
5463
5464                # print element (entry, item)
5465                my $co_url = href(-full=>1, action=>"commit", hash=>$commit);
5466                if ($format eq 'rss') {
5467                        print "<item>\n" .
5468                              "<title>" . esc_html($co{'title'}) . "</title>\n" .
5469                              "<author>" . esc_html($co{'author'}) . "</author>\n" .
5470                              "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
5471                              "<guid isPermaLink=\"true\">$co_url</guid>\n" .
5472                              "<link>$co_url</link>\n" .
5473                              "<description>" . esc_html($co{'title'}) . "</description>\n" .
5474                              "<content:encoded>" .
5475                              "<![CDATA[\n";
5476                } elsif ($format eq 'atom') {
5477                        print "<entry>\n" .
5478                              "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
5479                              "<updated>$cd{'iso-8601'}</updated>\n" .
5480                              "<author>\n" .
5481                              "  <name>" . esc_html($co{'author_name'}) . "</name>\n";
5482                        if ($co{'author_email'}) {
5483                                print "  <email>" . esc_html($co{'author_email'}) . "</email>\n";
5484                        }
5485                        print "</author>\n" .
5486                              # use committer for contributor
5487                              "<contributor>\n" .
5488                              "  <name>" . esc_html($co{'committer_name'}) . "</name>\n";
5489                        if ($co{'committer_email'}) {
5490                                print "  <email>" . esc_html($co{'committer_email'}) . "</email>\n";
5491                        }
5492                        print "</contributor>\n" .
5493                              "<published>$cd{'iso-8601'}</published>\n" .
5494                              "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
5495                              "<id>$co_url</id>\n" .
5496                              "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
5497                              "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
5498                }
5499                my $comment = $co{'comment'};
5500                print "<pre>\n";
5501                foreach my $line (@$comment) {
5502                        $line = esc_html($line);
5503                        print "$line\n";
5504                }
5505                print "</pre><ul>\n";
5506                foreach my $difftree_line (@difftree) {
5507                        my %difftree = parse_difftree_raw_line($difftree_line);
5508                        next if !$difftree{'from_id'};
5509
5510                        my $file = $difftree{'file'} || $difftree{'to_file'};
5511
5512                        print "<li>" .
5513                              "[" .
5514                              $cgi->a({-href => href(-full=>1, action=>"blobdiff",
5515                                                     hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
5516                                                     hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
5517                                                     file_name=>$file, file_parent=>$difftree{'from_file'}),
5518                                      -title => "diff"}, 'D');
5519                        if ($have_blame) {
5520                                print $cgi->a({-href => href(-full=>1, action=>"blame",
5521                                                             file_name=>$file, hash_base=>$commit),
5522                                              -title => "blame"}, 'B');
5523                        }
5524                        # if this is not a feed of a file history
5525                        if (!defined $file_name || $file_name ne $file) {
5526                                print $cgi->a({-href => href(-full=>1, action=>"history",
5527                                                             file_name=>$file, hash=>$commit),
5528                                              -title => "history"}, 'H');
5529                        }
5530                        $file = esc_path($file);
5531                        print "] ".
5532                              "$file</li>\n";
5533                }
5534                if ($format eq 'rss') {
5535                        print "</ul>]]>\n" .
5536                              "</content:encoded>\n" .
5537                              "</item>\n";
5538                } elsif ($format eq 'atom') {
5539                        print "</ul>\n</div>\n" .
5540                              "</content>\n" .
5541                              "</entry>\n";
5542                }
5543        }
5544
5545        # end of feed
5546        if ($format eq 'rss') {
5547                print "</channel>\n</rss>\n";
5548        }       elsif ($format eq 'atom') {
5549                print "</feed>\n";
5550        }
5551}
5552
5553sub git_rss {
5554        git_feed('rss');
5555}
5556
5557sub git_atom {
5558        git_feed('atom');
5559}
5560
5561sub git_opml {
5562        my @list = git_get_projects_list();
5563
5564        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
5565        print <<XML;
5566<?xml version="1.0" encoding="utf-8"?>
5567<opml version="1.0">
5568<head>
5569  <title>$site_name OPML Export</title>
5570</head>
5571<body>
5572<outline text="git RSS feeds">
5573XML
5574
5575        foreach my $pr (@list) {
5576                my %proj = %$pr;
5577                my $head = git_get_head_hash($proj{'path'});
5578                if (!defined $head) {
5579                        next;
5580                }
5581                $git_dir = "$projectroot/$proj{'path'}";
5582                my %co = parse_commit($head);
5583                if (!%co) {
5584                        next;
5585                }
5586
5587                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
5588                my $rss  = "$my_url?p=$proj{'path'};a=rss";
5589                my $html = "$my_url?p=$proj{'path'};a=summary";
5590                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
5591        }
5592        print <<XML;
5593</outline>
5594</body>
5595</opml>
5596XML
5597}