gitweb/gitweb.perl

   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
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 use File::Basename qw(basename);
  19 binmode STDOUT, ':utf8';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $my_uri = $cgi->url(-absolute => 1);
  25
  26 # core git executable to use
  27 # this can just be "git" if your webserver has a sensible PATH
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # target of the home link on top of all pages
  35 our $home_link = $my_uri || "/";
  36
  37 # string of the home link on top of all pages
  38 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40 # name of your site or organization to appear in page titles
  41 # replace this with something more descriptive for clearer bookmarks
  42 our $site_name = "++GITWEB_SITENAME++"
  43                  || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
  44
  45 # filename of html text to include at top of each page
  46 our $site_header = "++GITWEB_SITE_HEADER++";
  47 # html text to include at home page
  48 our $home_text = "++GITWEB_HOMETEXT++";
  49 # filename of html text to include at bottom of each page
  50 our $site_footer = "++GITWEB_SITE_FOOTER++";
  51
  52 # URI of stylesheets
  53 our @stylesheets = ("++GITWEB_CSS++");
  54 # URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
  55 our $stylesheet = undef;
  56 # URI of GIT logo (72x27 size)
  57 our $logo = "++GITWEB_LOGO++";
  58 # URI of GIT favicon, assumed to be image/png type
  59 our $favicon = "++GITWEB_FAVICON++";
  60
  61 # URI and label (title) of GIT logo link
  62 #our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  63 #our $logo_label = "git documentation";
  64 our $logo_url = "http://git.or.cz/";
  65 our $logo_label = "git homepage";
  66
  67 # source of projects list
  68 our $projects_list = "++GITWEB_LIST++";
  69
  70 # show repository only if this file exists
  71 # (only effective if this variable evaluates to true)
  72 our $export_ok = "++GITWEB_EXPORT_OK++";
  73
  74 # only allow viewing of repositories also shown on the overview page
  75 our $strict_export = "++GITWEB_STRICT_EXPORT++";
  76
  77 # list of git base URLs used for URL to where fetch project from,
  78 # i.e. full URL is "$git_base_url/$project"
  79 our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  80
  81 # default blob_plain mimetype and default charset for text/plain blob
  82 our $default_blob_plain_mimetype = 'text/plain';
  83 our $default_text_plain_charset  = undef;
  84
  85 # file to use for guessing MIME types before trying /etc/mime.types
  86 # (relative to the current git repository)
  87 our $mimetypes_file = undef;
  88
  89 # You define site-wide feature defaults here; override them with
  90 # $GITWEB_CONFIG as necessary.
  91 our %feature = (
  92         # feature => {
  93         #       'sub' => feature-sub (subroutine),
  94         #       'override' => allow-override (boolean),
  95         #       'default' => [ default options...] (array reference)}
  96         #
  97         # if feature is overridable (it means that allow-override has true value,
  98         # then feature-sub will be called with default options as parameters;
  99         # return value of feature-sub indicates if to enable specified feature
 100         #
 101         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 102
 103         # Enable the 'blame' blob view, showing the last commit that modified
 104         # each line in the file. This can be very CPU-intensive.
 105
 106         # To enable system wide have in $GITWEB_CONFIG
 107         # $feature{'blame'}{'default'} = [1];
 108         # To have project specific config enable override in $GITWEB_CONFIG
 109         # $feature{'blame'}{'override'} = 1;
 110         # and in project config gitweb.blame = 0|1;
 111         'blame' => {
 112                 'sub' => \&feature_blame,
 113                 'override' => 0,
 114                 'default' => [0]},
 115
 116         # Enable the 'snapshot' link, providing a compressed tarball of any
 117         # tree. This can potentially generate high traffic if you have large
 118         # project.
 119
 120         # To disable system wide have in $GITWEB_CONFIG
 121         # $feature{'snapshot'}{'default'} = [undef];
 122         # To have project specific config enable override in $GITWEB_CONFIG
 123         # $feature{'blame'}{'override'} = 1;
 124         # and in project config gitweb.snapshot = none|gzip|bzip2;
 125         'snapshot' => {
 126                 'sub' => \&feature_snapshot,
 127                 'override' => 0,
 128                 #         => [content-encoding, suffix, program]
 129                 'default' => ['x-gzip', 'gz', 'gzip']},
 130
 131         # Enable the pickaxe search, which will list the commits that modified
 132         # a given string in a file. This can be practical and quite faster
 133         # alternative to 'blame', but still potentially CPU-intensive.
 134
 135         # To enable system wide have in $GITWEB_CONFIG
 136         # $feature{'pickaxe'}{'default'} = [1];
 137         # To have project specific config enable override in $GITWEB_CONFIG
 138         # $feature{'pickaxe'}{'override'} = 1;
 139         # and in project config gitweb.pickaxe = 0|1;
 140         'pickaxe' => {
 141                 'sub' => \&feature_pickaxe,
 142                 'override' => 0,
 143                 'default' => [1]},
 144
 145         # Make gitweb use an alternative format of the URLs which can be
 146         # more readable and natural-looking: project name is embedded
 147         # directly in the path and the query string contains other
 148         # auxiliary information. All gitweb installations recognize
 149         # URL in either format; this configures in which formats gitweb
 150         # generates links.
 151
 152         # To enable system wide have in $GITWEB_CONFIG
 153         # $feature{'pathinfo'}{'default'} = [1];
 154         # Project specific override is not supported.
 155
 156         # Note that you will need to change the default location of CSS,
 157         # favicon, logo and possibly other files to an absolute URL. Also,
 158         # if gitweb.cgi serves as your indexfile, you will need to force
 159         # $my_uri to contain the script name in your $GITWEB_CONFIG.
 160         'pathinfo' => {
 161                 'override' => 0,
 162                 'default' => [0]},
 163
 164         # Make gitweb consider projects in project root subdirectories
 165         # to be forks of existing projects. Given project $projname.git,
 166         # projects matching $projname/*.git will not be shown in the main
 167         # projects list, instead a '+' mark will be added to $projname
 168         # there and a 'forks' view will be enabled for the project, listing
 169         # all the forks. This feature is supported only if project list
 170         # is taken from a directory, not file.
 171
 172         # To enable system wide have in $GITWEB_CONFIG
 173         # $feature{'forks'}{'default'} = [1];
 174         # Project specific override is not supported.
 175         'forks' => {
 176                 'override' => 0,
 177                 'default' => [0]},
 178 );
 179
 180 sub gitweb_check_feature {
 181         my ($name) = @_;
 182         return unless exists $feature{$name};
 183         my ($sub, $override, @defaults) = (
 184                 $feature{$name}{'sub'},
 185                 $feature{$name}{'override'},
 186                 @{$feature{$name}{'default'}});
 187         if (!$override) { return @defaults; }
 188         if (!defined $sub) {
 189                 warn "feature $name is not overrideable";
 190                 return @defaults;
 191         }
 192         return $sub->(@defaults);
 193 }
 194
 195 sub feature_blame {
 196         my ($val) = git_get_project_config('blame', '--bool');
 197
 198         if ($val eq 'true') {
 199                 return 1;
 200         } elsif ($val eq 'false') {
 201                 return 0;
 202         }
 203
 204         return $_[0];
 205 }
 206
 207 sub feature_snapshot {
 208         my ($ctype, $suffix, $command) = @_;
 209
 210         my ($val) = git_get_project_config('snapshot');
 211
 212         if ($val eq 'gzip') {
 213                 return ('x-gzip', 'gz', 'gzip');
 214         } elsif ($val eq 'bzip2') {
 215                 return ('x-bzip2', 'bz2', 'bzip2');
 216         } elsif ($val eq 'none') {
 217                 return ();
 218         }
 219
 220         return ($ctype, $suffix, $command);
 221 }
 222
 223 sub gitweb_have_snapshot {
 224         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 225         my $have_snapshot = (defined $ctype && defined $suffix);
 226
 227         return $have_snapshot;
 228 }
 229
 230 sub feature_pickaxe {
 231         my ($val) = git_get_project_config('pickaxe', '--bool');
 232
 233         if ($val eq 'true') {
 234                 return (1);
 235         } elsif ($val eq 'false') {
 236                 return (0);
 237         }
 238
 239         return ($_[0]);
 240 }
 241
 242 # checking HEAD file with -e is fragile if the repository was
 243 # initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 244 # and then pruned.
 245 sub check_head_link {
 246         my ($dir) = @_;
 247         my $headfile = "$dir/HEAD";
 248         return ((-e $headfile) ||
 249                 (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 250 }
 251
 252 sub check_export_ok {
 253         my ($dir) = @_;
 254         return (check_head_link($dir) &&
 255                 (!$export_ok || -e "$dir/$export_ok"));
 256 }
 257
 258 # rename detection options for git-diff and git-diff-tree
 259 # - default is '-M', with the cost proportional to
 260 #   (number of removed files) * (number of new files).
 261 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 262 #   (number of changed files + number of removed files) * (number of new files)
 263 # - even more costly is '-C', '--find-copies-harder' with cost
 264 #   (number of files in the original tree) * (number of new files)
 265 # - one might want to include '-B' option, e.g. '-B', '-M'
 266 our @diff_opts = ('-M'); # taken from git_commit
 267
 268 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 269 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 270
 271 # version of the core git binary
 272 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 273
 274 $projects_list ||= $projectroot;
 275
 276 # ======================================================================
 277 # input validation and dispatch
 278 our $action = $cgi->param('a');
 279 if (defined $action) {
 280         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 281                 die_error(undef, "Invalid action parameter");
 282         }
 283 }
 284
 285 # parameters which are pathnames
 286 our $project = $cgi->param('p');
 287 if (defined $project) {
 288         if (!validate_pathname($project) ||
 289             !(-d "$projectroot/$project") ||
 290             !check_head_link("$projectroot/$project") ||
 291             ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 292             ($strict_export && !project_in_list($project))) {
 293                 undef $project;
 294                 die_error(undef, "No such project");
 295         }
 296 }
 297
 298 our $file_name = $cgi->param('f');
 299 if (defined $file_name) {
 300         if (!validate_pathname($file_name)) {
 301                 die_error(undef, "Invalid file parameter");
 302         }
 303 }
 304
 305 our $file_parent = $cgi->param('fp');
 306 if (defined $file_parent) {
 307         if (!validate_pathname($file_parent)) {
 308                 die_error(undef, "Invalid file parent parameter");
 309         }
 310 }
 311
 312 # parameters which are refnames
 313 our $hash = $cgi->param('h');
 314 if (defined $hash) {
 315         if (!validate_refname($hash)) {
 316                 die_error(undef, "Invalid hash parameter");
 317         }
 318 }
 319
 320 our $hash_parent = $cgi->param('hp');
 321 if (defined $hash_parent) {
 322         if (!validate_refname($hash_parent)) {
 323                 die_error(undef, "Invalid hash parent parameter");
 324         }
 325 }
 326
 327 our $hash_base = $cgi->param('hb');
 328 if (defined $hash_base) {
 329         if (!validate_refname($hash_base)) {
 330                 die_error(undef, "Invalid hash base parameter");
 331         }
 332 }
 333
 334 our $hash_parent_base = $cgi->param('hpb');
 335 if (defined $hash_parent_base) {
 336         if (!validate_refname($hash_parent_base)) {
 337                 die_error(undef, "Invalid hash parent base parameter");
 338         }
 339 }
 340
 341 # other parameters
 342 our $page = $cgi->param('pg');
 343 if (defined $page) {
 344         if ($page =~ m/[^0-9]/) {
 345                 die_error(undef, "Invalid page parameter");
 346         }
 347 }
 348
 349 our $searchtext = $cgi->param('s');
 350 if (defined $searchtext) {
 351         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 352                 die_error(undef, "Invalid search parameter");
 353         }
 354         $searchtext = quotemeta $searchtext;
 355 }
 356
 357 our $searchtype = $cgi->param('st');
 358 if (defined $searchtype) {
 359         if ($searchtype =~ m/[^a-z]/) {
 360                 die_error(undef, "Invalid searchtype parameter");
 361         }
 362 }
 363
 364 # now read PATH_INFO and use it as alternative to parameters
 365 sub evaluate_path_info {
 366         return if defined $project;
 367         my $path_info = $ENV{"PATH_INFO"};
 368         return if !$path_info;
 369         $path_info =~ s,^/+,,;
 370         return if !$path_info;
 371         # find which part of PATH_INFO is project
 372         $project = $path_info;
 373         $project =~ s,/+$,,;
 374         while ($project && !check_head_link("$projectroot/$project")) {
 375                 $project =~ s,/*[^/]*$,,;
 376         }
 377         # validate project
 378         $project = validate_pathname($project);
 379         if (!$project ||
 380             ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 381             ($strict_export && !project_in_list($project))) {
 382                 undef $project;
 383                 return;
 384         }
 385         # do not change any parameters if an action is given using the query string
 386         return if $action;
 387         $path_info =~ s,^$project/*,,;
 388         my ($refname, $pathname) = split(/:/, $path_info, 2);
 389         if (defined $pathname) {
 390                 # we got "project.git/branch:filename" or "project.git/branch:dir/"
 391                 # we could use git_get_type(branch:pathname), but it needs $git_dir
 392                 $pathname =~ s,^/+,,;
 393                 if (!$pathname || substr($pathname, -1) eq "/") {
 394                         $action  ||= "tree";
 395                         $pathname =~ s,/$,,;
 396                 } else {
 397                         $action  ||= "blob_plain";
 398                 }
 399                 $hash_base ||= validate_refname($refname);
 400                 $file_name ||= validate_pathname($pathname);
 401         } elsif (defined $refname) {
 402                 # we got "project.git/branch"
 403                 $action ||= "shortlog";
 404                 $hash   ||= validate_refname($refname);
 405         }
 406 }
 407 evaluate_path_info();
 408
 409 # path to the current git repository
 410 our $git_dir;
 411 $git_dir = "$projectroot/$project" if $project;
 412
 413 # dispatch
 414 my %actions = (
 415         "blame" => \&git_blame2,
 416         "blobdiff" => \&git_blobdiff,
 417         "blobdiff_plain" => \&git_blobdiff_plain,
 418         "blob" => \&git_blob,
 419         "blob_plain" => \&git_blob_plain,
 420         "commitdiff" => \&git_commitdiff,
 421         "commitdiff_plain" => \&git_commitdiff_plain,
 422         "commit" => \&git_commit,
 423         "forks" => \&git_forks,
 424         "heads" => \&git_heads,
 425         "history" => \&git_history,
 426         "log" => \&git_log,
 427         "rss" => \&git_rss,
 428         "search" => \&git_search,
 429         "search_help" => \&git_search_help,
 430         "shortlog" => \&git_shortlog,
 431         "summary" => \&git_summary,
 432         "tag" => \&git_tag,
 433         "tags" => \&git_tags,
 434         "tree" => \&git_tree,
 435         "snapshot" => \&git_snapshot,
 436         # those below don't need $project
 437         "opml" => \&git_opml,
 438         "project_list" => \&git_project_list,
 439         "project_index" => \&git_project_index,
 440 );
 441
 442 if (defined $project) {
 443         $action ||= 'summary';
 444 } else {
 445         $action ||= 'project_list';
 446 }
 447 if (!defined($actions{$action})) {
 448         die_error(undef, "Unknown action");
 449 }
 450 if ($action !~ m/^(opml|project_list|project_index)$/ &&
 451     !$project) {
 452         die_error(undef, "Project needed");
 453 }
 454 $actions{$action}->();
 455 exit;
 456
 457 ## ======================================================================
 458 ## action links
 459
 460 sub href(%) {
 461         my %params = @_;
 462         # default is to use -absolute url() i.e. $my_uri
 463         my $href = $params{-full} ? $my_url : $my_uri;
 464
 465         # XXX: Warning: If you touch this, check the search form for updating,
 466         # too.
 467
 468         my @mapping = (
 469                 project => "p",
 470                 action => "a",
 471                 file_name => "f",
 472                 file_parent => "fp",
 473                 hash => "h",
 474                 hash_parent => "hp",
 475                 hash_base => "hb",
 476                 hash_parent_base => "hpb",
 477                 page => "pg",
 478                 order => "o",
 479                 searchtext => "s",
 480                 searchtype => "st",
 481         );
 482         my %mapping = @mapping;
 483
 484         $params{'project'} = $project unless exists $params{'project'};
 485
 486         my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 487         if ($use_pathinfo) {
 488                 # use PATH_INFO for project name
 489                 $href .= "/$params{'project'}" if defined $params{'project'};
 490                 delete $params{'project'};
 491
 492                 # Summary just uses the project path URL
 493                 if (defined $params{'action'} && $params{'action'} eq 'summary') {
 494                         delete $params{'action'};
 495                 }
 496         }
 497
 498         # now encode the parameters explicitly
 499         my @result = ();
 500         for (my $i = 0; $i < @mapping; $i += 2) {
 501                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 502                 if (defined $params{$name}) {
 503                         push @result, $symbol . "=" . esc_param($params{$name});
 504                 }
 505         }
 506         $href .= "?" . join(';', @result) if scalar @result;
 507
 508         return $href;
 509 }
 510
 511
 512 ## ======================================================================
 513 ## validation, quoting/unquoting and escaping
 514
 515 sub validate_pathname {
 516         my $input = shift || return undef;
 517
 518         # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 519         # at the beginning, at the end, and between slashes.
 520         # also this catches doubled slashes
 521         if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 522                 return undef;
 523         }
 524         # no null characters
 525         if ($input =~ m!\0!) {
 526                 return undef;
 527         }
 528         return $input;
 529 }
 530
 531 sub validate_refname {
 532         my $input = shift || return undef;
 533
 534         # textual hashes are O.K.
 535         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 536                 return $input;
 537         }
 538         # it must be correct pathname
 539         $input = validate_pathname($input)
 540                 or return undef;
 541         # restrictions on ref name according to git-check-ref-format
 542         if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 543                 return undef;
 544         }
 545         return $input;
 546 }
 547
 548 # very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 549 sub to_utf8 {
 550         my $str = shift;
 551         return decode("utf8", $str, Encode::FB_DEFAULT);
 552 }
 553
 554 # quote unsafe chars, but keep the slash, even when it's not
 555 # correct, but quoted slashes look too horrible in bookmarks
 556 sub esc_param {
 557         my $str = shift;
 558         $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 559         $str =~ s/\+/%2B/g;
 560         $str =~ s/ /\+/g;
 561         return $str;
 562 }
 563
 564 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
 565 sub esc_url {
 566         my $str = shift;
 567         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 568         $str =~ s/\+/%2B/g;
 569         $str =~ s/ /\+/g;
 570         return $str;
 571 }
 572
 573 # replace invalid utf8 character with SUBSTITUTION sequence
 574 sub esc_html ($;%) {
 575         my $str = shift;
 576         my %opts = @_;
 577
 578         $str = to_utf8($str);
 579         $str = escapeHTML($str);
 580         if ($opts{'-nbsp'}) {
 581                 $str =~ s/ /&nbsp;/g;
 582         }
 583         $str =~ s|([[:cntrl:]])|(($1 ne "\t") ? quot_cec($1) : $1)|eg;
 584         return $str;
 585 }
 586
 587 # Make control characterss "printable".
 588 sub quot_cec {
 589         my $cntrl = shift;
 590         my %es = ( # character escape codes, aka escape sequences
 591                    "\t" => '\t',   # tab            (HT)
 592                    "\n" => '\n',   # line feed      (LF)
 593                    "\r" => '\r',   # carrige return (CR)
 594                    "\f" => '\f',   # form feed      (FF)
 595                    "\b" => '\b',   # backspace      (BS)
 596                    "\a" => '\a',   # alarm (bell)   (BEL)
 597                    "\e" => '\e',   # escape         (ESC)
 598                    "\013" => '\v', # vertical tab   (VT)
 599                    "\000" => '\0', # nul character  (NUL)
 600                    );
 601         my $chr = ( (exists $es{$cntrl})
 602                     ? $es{$cntrl}
 603                     : sprintf('\%03o', ord($cntrl)) );
 604         return "<span class=\"cntrl\">$chr</span>";
 605 }
 606
 607 # Alternatively use unicode control pictures codepoints.
 608 sub quot_upr {
 609         my $cntrl = shift;
 610         my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
 611         return "<span class=\"cntrl\">$chr</span>";
 612 }
 613
 614 # quote control characters and escape filename to HTML
 615 sub esc_path {
 616         my $str = shift;
 617
 618         $str = esc_html($str);
 619         $str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
 620         return $str;
 621 }
 622
 623 # git may return quoted and escaped filenames
 624 sub unquote {
 625         my $str = shift;
 626
 627         sub unq {
 628                 my $seq = shift;
 629                 my %es = ( # character escape codes, aka escape sequences
 630                         't' => "\t",   # tab            (HT, TAB)
 631                         'n' => "\n",   # newline        (NL)
 632                         'r' => "\r",   # return         (CR)
 633                         'f' => "\f",   # form feed      (FF)
 634                         'b' => "\b",   # backspace      (BS)
 635                         'a' => "\a",   # alarm (bell)   (BEL)
 636                         'e' => "\e",   # escape         (ESC)
 637                         'v' => "\013", # vertical tab   (VT)
 638                 );
 639
 640                 if ($seq =~ m/^[0-7]{1,3}$/) {
 641                         # octal char sequence
 642                         return chr(oct($seq));
 643                 } elsif (exists $es{$seq}) {
 644                         # C escape sequence, aka character escape code
 645                         return $es{$seq}
 646                 }
 647                 # quoted ordinary character
 648                 return $seq;
 649         }
 650
 651         if ($str =~ m/^"(.*)"$/) {
 652                 # needs unquoting
 653                 $str = $1;
 654                 $str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
 655         }
 656         return $str;
 657 }
 658
 659 # escape tabs (convert tabs to spaces)
 660 sub untabify {
 661         my $line = shift;
 662
 663         while ((my $pos = index($line, "\t")) != -1) {
 664                 if (my $count = (8 - ($pos % 8))) {
 665                         my $spaces = ' ' x $count;
 666                         $line =~ s/\t/$spaces/;
 667                 }
 668         }
 669
 670         return $line;
 671 }
 672
 673 sub project_in_list {
 674         my $project = shift;
 675         my @list = git_get_projects_list();
 676         return @list && scalar(grep { $_->{'path'} eq $project } @list);
 677 }
 678
 679 ## ----------------------------------------------------------------------
 680 ## HTML aware string manipulation
 681
 682 sub chop_str {
 683         my $str = shift;
 684         my $len = shift;
 685         my $add_len = shift || 10;
 686
 687         # allow only $len chars, but don't cut a word if it would fit in $add_len
 688         # if it doesn't fit, cut it if it's still longer than the dots we would add
 689         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 690         my $body = $1;
 691         my $tail = $2;
 692         if (length($tail) > 4) {
 693                 $tail = " ...";
 694                 $body =~ s/&[^;]*$//; # remove chopped character entities
 695         }
 696         return "$body$tail";
 697 }
 698
 699 ## ----------------------------------------------------------------------
 700 ## functions returning short strings
 701
 702 # CSS class for given age value (in seconds)
 703 sub age_class {
 704         my $age = shift;
 705
 706         if ($age < 60*60*2) {
 707                 return "age0";
 708         } elsif ($age < 60*60*24*2) {
 709                 return "age1";
 710         } else {
 711                 return "age2";
 712         }
 713 }
 714
 715 # convert age in seconds to "nn units ago" string
 716 sub age_string {
 717         my $age = shift;
 718         my $age_str;
 719
 720         if ($age > 60*60*24*365*2) {
 721                 $age_str = (int $age/60/60/24/365);
 722                 $age_str .= " years ago";
 723         } elsif ($age > 60*60*24*(365/12)*2) {
 724                 $age_str = int $age/60/60/24/(365/12);
 725                 $age_str .= " months ago";
 726         } elsif ($age > 60*60*24*7*2) {
 727                 $age_str = int $age/60/60/24/7;
 728                 $age_str .= " weeks ago";
 729         } elsif ($age > 60*60*24*2) {
 730                 $age_str = int $age/60/60/24;
 731                 $age_str .= " days ago";
 732         } elsif ($age > 60*60*2) {
 733                 $age_str = int $age/60/60;
 734                 $age_str .= " hours ago";
 735         } elsif ($age > 60*2) {
 736                 $age_str = int $age/60;
 737                 $age_str .= " min ago";
 738         } elsif ($age > 2) {
 739                 $age_str = int $age;
 740                 $age_str .= " sec ago";
 741         } else {
 742                 $age_str .= " right now";
 743         }
 744         return $age_str;
 745 }
 746
 747 # convert file mode in octal to symbolic file mode string
 748 sub mode_str {
 749         my $mode = oct shift;
 750
 751         if (S_ISDIR($mode & S_IFMT)) {
 752                 return 'drwxr-xr-x';
 753         } elsif (S_ISLNK($mode)) {
 754                 return 'lrwxrwxrwx';
 755         } elsif (S_ISREG($mode)) {
 756                 # git cares only about the executable bit
 757                 if ($mode & S_IXUSR) {
 758                         return '-rwxr-xr-x';
 759                 } else {
 760                         return '-rw-r--r--';
 761                 };
 762         } else {
 763                 return '----------';
 764         }
 765 }
 766
 767 # convert file mode in octal to file type string
 768 sub file_type {
 769         my $mode = shift;
 770
 771         if ($mode !~ m/^[0-7]+$/) {
 772                 return $mode;
 773         } else {
 774                 $mode = oct $mode;
 775         }
 776
 777         if (S_ISDIR($mode & S_IFMT)) {
 778                 return "directory";
 779         } elsif (S_ISLNK($mode)) {
 780                 return "symlink";
 781         } elsif (S_ISREG($mode)) {
 782                 return "file";
 783         } else {
 784                 return "unknown";
 785         }
 786 }
 787
 788 # convert file mode in octal to file type description string
 789 sub file_type_long {
 790         my $mode = shift;
 791
 792         if ($mode !~ m/^[0-7]+$/) {
 793                 return $mode;
 794         } else {
 795                 $mode = oct $mode;
 796         }
 797
 798         if (S_ISDIR($mode & S_IFMT)) {
 799                 return "directory";
 800         } elsif (S_ISLNK($mode)) {
 801                 return "symlink";
 802         } elsif (S_ISREG($mode)) {
 803                 if ($mode & S_IXUSR) {
 804                         return "executable";
 805                 } else {
 806                         return "file";
 807                 };
 808         } else {
 809                 return "unknown";
 810         }
 811 }
 812
 813
 814 ## ----------------------------------------------------------------------
 815 ## functions returning short HTML fragments, or transforming HTML fragments
 816 ## which don't beling to other sections
 817
 818 # format line of commit message.
 819 sub format_log_line_html {
 820         my $line = shift;
 821
 822         $line = esc_html($line, -nbsp=>1);
 823         if ($line =~ m/([0-9a-fA-F]{40})/) {
 824                 my $hash_text = $1;
 825                 if (git_get_type($hash_text) eq "commit") {
 826                         my $link =
 827                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 828                                         -class => "text"}, $hash_text);
 829                         $line =~ s/$hash_text/$link/;
 830                 }
 831         }
 832         return $line;
 833 }
 834
 835 # format marker of refs pointing to given object
 836 sub format_ref_marker {
 837         my ($refs, $id) = @_;
 838         my $markers = '';
 839
 840         if (defined $refs->{$id}) {
 841                 foreach my $ref (@{$refs->{$id}}) {
 842                         my ($type, $name) = qw();
 843                         # e.g. tags/v2.6.11 or heads/next
 844                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 845                                 $type = $1;
 846                                 $name = $2;
 847                         } else {
 848                                 $type = "ref";
 849                                 $name = $ref;
 850                         }
 851
 852                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 853                 }
 854         }
 855
 856         if ($markers) {
 857                 return ' <span class="refs">'. $markers . '</span>';
 858         } else {
 859                 return "";
 860         }
 861 }
 862
 863 # format, perhaps shortened and with markers, title line
 864 sub format_subject_html {
 865         my ($long, $short, $href, $extra) = @_;
 866         $extra = '' unless defined($extra);
 867
 868         if (length($short) < length($long)) {
 869                 return $cgi->a({-href => $href, -class => "list subject",
 870                                 -title => to_utf8($long)},
 871                        esc_html($short) . $extra);
 872         } else {
 873                 return $cgi->a({-href => $href, -class => "list subject"},
 874                        esc_html($long)  . $extra);
 875         }
 876 }
 877
 878 # format patch (diff) line (rather not to be used for diff headers)
 879 sub format_diff_line {
 880         my $line = shift;
 881         my ($from, $to) = @_;
 882         my $char = substr($line, 0, 1);
 883         my $diff_class = "";
 884
 885         chomp $line;
 886
 887         if ($char eq '+') {
 888                 $diff_class = " add";
 889         } elsif ($char eq "-") {
 890                 $diff_class = " rem";
 891         } elsif ($char eq "@") {
 892                 $diff_class = " chunk_header";
 893         } elsif ($char eq "\\") {
 894                 $diff_class = " incomplete";
 895         }
 896         $line = untabify($line);
 897         if ($from && $to && $line =~ m/^\@{2} /) {
 898                 my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
 899                         $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
 900
 901                 $from_lines = 0 unless defined $from_lines;
 902                 $to_lines   = 0 unless defined $to_lines;
 903
 904                 if ($from->{'href'}) {
 905                         $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
 906                                              -class=>"list"}, $from_text);
 907                 }
 908                 if ($to->{'href'}) {
 909                         $to_text   = $cgi->a({-href=>"$to->{'href'}#l$to_start",
 910                                              -class=>"list"}, $to_text);
 911                 }
 912                 $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
 913                         "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
 914                 return "<div class=\"diff$diff_class\">$line</div>\n";
 915         }
 916         return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
 917 }
 918
 919 ## ----------------------------------------------------------------------
 920 ## git utility subroutines, invoking git commands
 921
 922 # returns path to the core git executable and the --git-dir parameter as list
 923 sub git_cmd {
 924         return $GIT, '--git-dir='.$git_dir;
 925 }
 926
 927 # returns path to the core git executable and the --git-dir parameter as string
 928 sub git_cmd_str {
 929         return join(' ', git_cmd());
 930 }
 931
 932 # get HEAD ref of given project as hash
 933 sub git_get_head_hash {
 934         my $project = shift;
 935         my $o_git_dir = $git_dir;
 936         my $retval = undef;
 937         $git_dir = "$projectroot/$project";
 938         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 939                 my $head = <$fd>;
 940                 close $fd;
 941                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 942                         $retval = $1;
 943                 }
 944         }
 945         if (defined $o_git_dir) {
 946                 $git_dir = $o_git_dir;
 947         }
 948         return $retval;
 949 }
 950
 951 # get type of given object
 952 sub git_get_type {
 953         my $hash = shift;
 954
 955         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 956         my $type = <$fd>;
 957         close $fd or return;
 958         chomp $type;
 959         return $type;
 960 }
 961
 962 sub git_get_project_config {
 963         my ($key, $type) = @_;
 964
 965         return unless ($key);
 966         $key =~ s/^gitweb\.//;
 967         return if ($key =~ m/\W/);
 968
 969         my @x = (git_cmd(), 'repo-config');
 970         if (defined $type) { push @x, $type; }
 971         push @x, "--get";
 972         push @x, "gitweb.$key";
 973         my $val = qx(@x);
 974         chomp $val;
 975         return ($val);
 976 }
 977
 978 # get hash of given path at given ref
 979 sub git_get_hash_by_path {
 980         my $base = shift;
 981         my $path = shift || return undef;
 982         my $type = shift;
 983
 984         $path =~ s,/+$,,;
 985
 986         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 987                 or die_error(undef, "Open git-ls-tree failed");
 988         my $line = <$fd>;
 989         close $fd or return undef;
 990
 991         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 992         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
 993         if (defined $type && $type ne $2) {
 994                 # type doesn't match
 995                 return undef;
 996         }
 997         return $3;
 998 }
 999
1000 ## ......................................................................
1001 ## git utility functions, directly accessing git repository
1002
1003 sub git_get_project_description {
1004         my $path = shift;
1005
1006         open my $fd, "$projectroot/$path/description" or return undef;
1007         my $descr = <$fd>;
1008         close $fd;
1009         chomp $descr;
1010         return $descr;
1011 }
1012
1013 sub git_get_project_url_list {
1014         my $path = shift;
1015
1016         open my $fd, "$projectroot/$path/cloneurl" or return;
1017         my @git_project_url_list = map { chomp; $_ } <$fd>;
1018         close $fd;
1019
1020         return wantarray ? @git_project_url_list : \@git_project_url_list;
1021 }
1022
1023 sub git_get_projects_list {
1024         my ($filter) = @_;
1025         my @list;
1026
1027         $filter ||= '';
1028         $filter =~ s/\.git$//;
1029
1030         if (-d $projects_list) {
1031                 # search in directory
1032                 my $dir = $projects_list . ($filter ? "/$filter" : '');
1033                 # remove the trailing "/"
1034                 $dir =~ s!/+$!!;
1035                 my $pfxlen = length("$dir");
1036
1037                 my ($check_forks) = gitweb_check_feature('forks');
1038
1039                 File::Find::find({
1040                         follow_fast => 1, # follow symbolic links
1041                         dangling_symlinks => 0, # ignore dangling symlinks, silently
1042                         wanted => sub {
1043                                 # skip project-list toplevel, if we get it.
1044                                 return if (m!^[/.]$!);
1045                                 # only directories can be git repositories
1046                                 return unless (-d $_);
1047
1048                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
1049                                 # we check related file in $projectroot
1050                                 if ($check_forks and $subdir =~ m#/.#) {
1051                                         $File::Find::prune = 1;
1052                                 } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1053                                         push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1054                                         $File::Find::prune = 1;
1055                                 }
1056                         },
1057                 }, "$dir");
1058
1059         } elsif (-f $projects_list) {
1060                 # read from file(url-encoded):
1061                 # 'git%2Fgit.git Linus+Torvalds'
1062                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1063                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1064                 open my ($fd), $projects_list or return;
1065                 while (my $line = <$fd>) {
1066                         chomp $line;
1067                         my ($path, $owner) = split ' ', $line;
1068                         $path = unescape($path);
1069                         $owner = unescape($owner);
1070                         if (!defined $path) {
1071                                 next;
1072                         }
1073                         if ($filter ne '') {
1074                                 # looking for forks;
1075                                 my $pfx = substr($path, 0, length($filter));
1076                                 if ($pfx ne $filter) {
1077                                         next;
1078                                 }
1079                                 my $sfx = substr($path, length($filter));
1080                                 if ($sfx !~ /^\/.*\.git$/) {
1081                                         next;
1082                                 }
1083                         }
1084                         if (check_export_ok("$projectroot/$path")) {
1085                                 my $pr = {
1086                                         path => $path,
1087                                         owner => to_utf8($owner),
1088                                 };
1089                                 push @list, $pr
1090                         }
1091                 }
1092                 close $fd;
1093         }
1094         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
1095         return @list;
1096 }
1097
1098 sub git_get_project_owner {
1099         my $project = shift;
1100         my $owner;
1101
1102         return undef unless $project;
1103
1104         # read from file (url-encoded):
1105         # 'git%2Fgit.git Linus+Torvalds'
1106         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1107         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1108         if (-f $projects_list) {
1109                 open (my $fd , $projects_list);
1110                 while (my $line = <$fd>) {
1111                         chomp $line;
1112                         my ($pr, $ow) = split ' ', $line;
1113                         $pr = unescape($pr);
1114                         $ow = unescape($ow);
1115                         if ($pr eq $project) {
1116                                 $owner = to_utf8($ow);
1117                                 last;
1118                         }
1119                 }
1120                 close $fd;
1121         }
1122         if (!defined $owner) {
1123                 $owner = get_file_owner("$projectroot/$project");
1124         }
1125
1126         return $owner;
1127 }
1128
1129 sub git_get_last_activity {
1130         my ($path) = @_;
1131         my $fd;
1132
1133         $git_dir = "$projectroot/$path";
1134         open($fd, "-|", git_cmd(), 'for-each-ref',
1135              '--format=%(refname) %(committer)',
1136              '--sort=-committerdate',
1137              'refs/heads') or return;
1138         my $most_recent = <$fd>;
1139         close $fd or return;
1140         if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1141                 my $timestamp = $1;
1142                 my $age = time - $timestamp;
1143                 return ($age, age_string($age));
1144         }
1145 }
1146
1147 sub git_get_references {
1148         my $type = shift || "";
1149         my %refs;
1150         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
1151         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
1152         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1153                 or return;
1154
1155         while (my $line = <$fd>) {
1156                 chomp $line;
1157                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
1158                         if (defined $refs{$1}) {
1159                                 push @{$refs{$1}}, $2;
1160                         } else {
1161                                 $refs{$1} = [ $2 ];
1162                         }
1163                 }
1164         }
1165         close $fd or return;
1166         return \%refs;
1167 }
1168
1169 sub git_get_rev_name_tags {
1170         my $hash = shift || return undef;
1171
1172         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1173                 or return;
1174         my $name_rev = <$fd>;
1175         close $fd;
1176
1177         if ($name_rev =~ m|^$hash tags/(.*)$|) {
1178                 return $1;
1179         } else {
1180                 # catches also '$hash undefined' output
1181                 return undef;
1182         }
1183 }
1184
1185 ## ----------------------------------------------------------------------
1186 ## parse to hash functions
1187
1188 sub parse_date {
1189         my $epoch = shift;
1190         my $tz = shift || "-0000";
1191
1192         my %date;
1193         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1194         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1195         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1196         $date{'hour'} = $hour;
1197         $date{'minute'} = $min;
1198         $date{'mday'} = $mday;
1199         $date{'day'} = $days[$wday];
1200         $date{'month'} = $months[$mon];
1201         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1202                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1203         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1204                              $mday, $months[$mon], $hour ,$min;
1205
1206         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1207         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1208         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1209         $date{'hour_local'} = $hour;
1210         $date{'minute_local'} = $min;
1211         $date{'tz_local'} = $tz;
1212         $date{'iso-tz'} = sprintf ("%04d-%02d-%02d %02d:%02d:%02d %s",
1213                                    1900+$year, $mon+1, $mday,
1214                                    $hour, $min, $sec, $tz);
1215         return %date;
1216 }
1217
1218 sub parse_tag {
1219         my $tag_id = shift;
1220         my %tag;
1221         my @comment;
1222
1223         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1224         $tag{'id'} = $tag_id;
1225         while (my $line = <$fd>) {
1226                 chomp $line;
1227                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1228                         $tag{'object'} = $1;
1229                 } elsif ($line =~ m/^type (.+)$/) {
1230                         $tag{'type'} = $1;
1231                 } elsif ($line =~ m/^tag (.+)$/) {
1232                         $tag{'name'} = $1;
1233                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1234                         $tag{'author'} = $1;
1235                         $tag{'epoch'} = $2;
1236                         $tag{'tz'} = $3;
1237                 } elsif ($line =~ m/--BEGIN/) {
1238                         push @comment, $line;
1239                         last;
1240                 } elsif ($line eq "") {
1241                         last;
1242                 }
1243         }
1244         push @comment, <$fd>;
1245         $tag{'comment'} = \@comment;
1246         close $fd or return;
1247         if (!defined $tag{'name'}) {
1248                 return
1249         };
1250         return %tag
1251 }
1252
1253 sub parse_commit {
1254         my $commit_id = shift;
1255         my $commit_text = shift;
1256
1257         my @commit_lines;
1258         my %co;
1259
1260         if (defined $commit_text) {
1261                 @commit_lines = @$commit_text;
1262         } else {
1263                 local $/ = "\0";
1264                 open my $fd, "-|", git_cmd(), "rev-list",
1265                         "--header", "--parents", "--max-count=1",
1266                         $commit_id, "--"
1267                         or return;
1268                 @commit_lines = split '\n', <$fd>;
1269                 close $fd or return;
1270                 pop @commit_lines;
1271         }
1272         my $header = shift @commit_lines;
1273         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1274                 return;
1275         }
1276         ($co{'id'}, my @parents) = split ' ', $header;
1277         $co{'parents'} = \@parents;
1278         $co{'parent'} = $parents[0];
1279         while (my $line = shift @commit_lines) {
1280                 last if $line eq "\n";
1281                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1282                         $co{'tree'} = $1;
1283                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1284                         $co{'author'} = $1;
1285                         $co{'author_epoch'} = $2;
1286                         $co{'author_tz'} = $3;
1287                         if ($co{'author'} =~ m/^([^<]+) </) {
1288                                 $co{'author_name'} = $1;
1289                         } else {
1290                                 $co{'author_name'} = $co{'author'};
1291                         }
1292                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1293                         $co{'committer'} = $1;
1294                         $co{'committer_epoch'} = $2;
1295                         $co{'committer_tz'} = $3;
1296                         $co{'committer_name'} = $co{'committer'};
1297                         $co{'committer_name'} =~ s/ <.*//;
1298                 }
1299         }
1300         if (!defined $co{'tree'}) {
1301                 return;
1302         };
1303
1304         foreach my $title (@commit_lines) {
1305                 $title =~ s/^    //;
1306                 if ($title ne "") {
1307                         $co{'title'} = chop_str($title, 80, 5);
1308                         # remove leading stuff of merges to make the interesting part visible
1309                         if (length($title) > 50) {
1310                                 $title =~ s/^Automatic //;
1311                                 $title =~ s/^merge (of|with) /Merge ... /i;
1312                                 if (length($title) > 50) {
1313                                         $title =~ s/(http|rsync):\/\///;
1314                                 }
1315                                 if (length($title) > 50) {
1316                                         $title =~ s/(master|www|rsync)\.//;
1317                                 }
1318                                 if (length($title) > 50) {
1319                                         $title =~ s/kernel.org:?//;
1320                                 }
1321                                 if (length($title) > 50) {
1322                                         $title =~ s/\/pub\/scm//;
1323                                 }
1324                         }
1325                         $co{'title_short'} = chop_str($title, 50, 5);
1326                         last;
1327                 }
1328         }
1329         if ($co{'title'} eq "") {
1330                 $co{'title'} = $co{'title_short'} = '(no commit message)';
1331         }
1332         # remove added spaces
1333         foreach my $line (@commit_lines) {
1334                 $line =~ s/^    //;
1335         }
1336         $co{'comment'} = \@commit_lines;
1337
1338         my $age = time - $co{'committer_epoch'};
1339         $co{'age'} = $age;
1340         $co{'age_string'} = age_string($age);
1341         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1342         if ($age > 60*60*24*7*2) {
1343                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1344                 $co{'age_string_age'} = $co{'age_string'};
1345         } else {
1346                 $co{'age_string_date'} = $co{'age_string'};
1347                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1348         }
1349         return %co;
1350 }
1351
1352 # parse ref from ref_file, given by ref_id, with given type
1353 sub parse_ref {
1354         my $ref_file = shift;
1355         my $ref_id = shift;
1356         my $type = shift || git_get_type($ref_id);
1357         my %ref_item;
1358
1359         $ref_item{'type'} = $type;
1360         $ref_item{'id'} = $ref_id;
1361         $ref_item{'epoch'} = 0;
1362         $ref_item{'age'} = "unknown";
1363         if ($type eq "tag") {
1364                 my %tag = parse_tag($ref_id);
1365                 $ref_item{'comment'} = $tag{'comment'};
1366                 if ($tag{'type'} eq "commit") {
1367                         my %co = parse_commit($tag{'object'});
1368                         $ref_item{'epoch'} = $co{'committer_epoch'};
1369                         $ref_item{'age'} = $co{'age_string'};
1370                 } elsif (defined($tag{'epoch'})) {
1371                         my $age = time - $tag{'epoch'};
1372                         $ref_item{'epoch'} = $tag{'epoch'};
1373                         $ref_item{'age'} = age_string($age);
1374                 }
1375                 $ref_item{'reftype'} = $tag{'type'};
1376                 $ref_item{'name'} = $tag{'name'};
1377                 $ref_item{'refid'} = $tag{'object'};
1378         } elsif ($type eq "commit"){
1379                 my %co = parse_commit($ref_id);
1380                 $ref_item{'reftype'} = "commit";
1381                 $ref_item{'name'} = $ref_file;
1382                 $ref_item{'title'} = $co{'title'};
1383                 $ref_item{'refid'} = $ref_id;
1384                 $ref_item{'epoch'} = $co{'committer_epoch'};
1385                 $ref_item{'age'} = $co{'age_string'};
1386         } else {
1387                 $ref_item{'reftype'} = $type;
1388                 $ref_item{'name'} = $ref_file;
1389                 $ref_item{'refid'} = $ref_id;
1390         }
1391
1392         return %ref_item;
1393 }
1394
1395 # parse line of git-diff-tree "raw" output
1396 sub parse_difftree_raw_line {
1397         my $line = shift;
1398         my %res;
1399
1400         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1401         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1402         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1403                 $res{'from_mode'} = $1;
1404                 $res{'to_mode'} = $2;
1405                 $res{'from_id'} = $3;
1406                 $res{'to_id'} = $4;
1407                 $res{'status'} = $5;
1408                 $res{'similarity'} = $6;
1409                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1410                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1411                 } else {
1412                         $res{'file'} = unquote($7);
1413                 }
1414         }
1415         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1416         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1417                 $res{'commit'} = $1;
1418         }
1419
1420         return wantarray ? %res : \%res;
1421 }
1422
1423 # parse line of git-ls-tree output
1424 sub parse_ls_tree_line ($;%) {
1425         my $line = shift;
1426         my %opts = @_;
1427         my %res;
1428
1429         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1430         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
1431
1432         $res{'mode'} = $1;
1433         $res{'type'} = $2;
1434         $res{'hash'} = $3;
1435         if ($opts{'-z'}) {
1436                 $res{'name'} = $4;
1437         } else {
1438                 $res{'name'} = unquote($4);
1439         }
1440
1441         return wantarray ? %res : \%res;
1442 }
1443
1444 ## ......................................................................
1445 ## parse to array of hashes functions
1446
1447 sub git_get_heads_list {
1448         my $limit = shift;
1449         my @headslist;
1450
1451         open my $fd, '-|', git_cmd(), 'for-each-ref',
1452                 ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
1453                 '--format=%(objectname) %(refname) %(subject)%00%(committer)',
1454                 'refs/heads'
1455                 or return;
1456         while (my $line = <$fd>) {
1457                 my %ref_item;
1458
1459                 chomp $line;
1460                 my ($refinfo, $committerinfo) = split(/\0/, $line);
1461                 my ($hash, $name, $title) = split(' ', $refinfo, 3);
1462                 my ($committer, $epoch, $tz) =
1463                         ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
1464                 $name =~ s!^refs/heads/!!;
1465
1466                 $ref_item{'name'}  = $name;
1467                 $ref_item{'id'}    = $hash;
1468                 $ref_item{'title'} = $title || '(no commit message)';
1469                 $ref_item{'epoch'} = $epoch;
1470                 if ($epoch) {
1471                         $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1472                 } else {
1473                         $ref_item{'age'} = "unknown";
1474                 }
1475
1476                 push @headslist, \%ref_item;
1477         }
1478         close $fd;
1479
1480         return wantarray ? @headslist : \@headslist;
1481 }
1482
1483 sub git_get_tags_list {
1484         my $limit = shift;
1485         my @tagslist;
1486
1487         open my $fd, '-|', git_cmd(), 'for-each-ref',
1488                 ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
1489                 '--format=%(objectname) %(objecttype) %(refname) '.
1490                 '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
1491                 'refs/tags'
1492                 or return;
1493         while (my $line = <$fd>) {
1494                 my %ref_item;
1495
1496                 chomp $line;
1497                 my ($refinfo, $creatorinfo) = split(/\0/, $line);
1498                 my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
1499                 my ($creator, $epoch, $tz) =
1500                         ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
1501                 $name =~ s!^refs/tags/!!;
1502
1503                 $ref_item{'type'} = $type;
1504                 $ref_item{'id'} = $id;
1505                 $ref_item{'name'} = $name;
1506                 if ($type eq "tag") {
1507                         $ref_item{'subject'} = $title;
1508                         $ref_item{'reftype'} = $reftype;
1509                         $ref_item{'refid'}   = $refid;
1510                 } else {
1511                         $ref_item{'reftype'} = $type;
1512                         $ref_item{'refid'}   = $id;
1513                 }
1514
1515                 if ($type eq "tag" || $type eq "commit") {
1516                         $ref_item{'epoch'} = $epoch;
1517                         if ($epoch) {
1518                                 $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1519                         } else {
1520                                 $ref_item{'age'} = "unknown";
1521                         }
1522                 }
1523
1524                 push @tagslist, \%ref_item;
1525         }
1526         close $fd;
1527
1528         return wantarray ? @tagslist : \@tagslist;
1529 }
1530
1531 ## ----------------------------------------------------------------------
1532 ## filesystem-related functions
1533
1534 sub get_file_owner {
1535         my $path = shift;
1536
1537         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1538         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1539         if (!defined $gcos) {
1540                 return undef;
1541         }
1542         my $owner = $gcos;
1543         $owner =~ s/[,;].*$//;
1544         return to_utf8($owner);
1545 }
1546
1547 ## ......................................................................
1548 ## mimetype related functions
1549
1550 sub mimetype_guess_file {
1551         my $filename = shift;
1552         my $mimemap = shift;
1553         -r $mimemap or return undef;
1554
1555         my %mimemap;
1556         open(MIME, $mimemap) or return undef;
1557         while (<MIME>) {
1558                 next if m/^#/; # skip comments
1559                 my ($mime, $exts) = split(/\t+/);
1560                 if (defined $exts) {
1561                         my @exts = split(/\s+/, $exts);
1562                         foreach my $ext (@exts) {
1563                                 $mimemap{$ext} = $mime;
1564                         }
1565                 }
1566         }
1567         close(MIME);
1568
1569         $filename =~ /\.([^.]*)$/;
1570         return $mimemap{$1};
1571 }
1572
1573 sub mimetype_guess {
1574         my $filename = shift;
1575         my $mime;
1576         $filename =~ /\./ or return undef;
1577
1578         if ($mimetypes_file) {
1579                 my $file = $mimetypes_file;
1580                 if ($file !~ m!^/!) { # if it is relative path
1581                         # it is relative to project
1582                         $file = "$projectroot/$project/$file";
1583                 }
1584                 $mime = mimetype_guess_file($filename, $file);
1585         }
1586         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1587         return $mime;
1588 }
1589
1590 sub blob_mimetype {
1591         my $fd = shift;
1592         my $filename = shift;
1593
1594         if ($filename) {
1595                 my $mime = mimetype_guess($filename);
1596                 $mime and return $mime;
1597         }
1598
1599         # just in case
1600         return $default_blob_plain_mimetype unless $fd;
1601
1602         if (-T $fd) {
1603                 return 'text/plain' .
1604                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1605         } elsif (! $filename) {
1606                 return 'application/octet-stream';
1607         } elsif ($filename =~ m/\.png$/i) {
1608                 return 'image/png';
1609         } elsif ($filename =~ m/\.gif$/i) {
1610                 return 'image/gif';
1611         } elsif ($filename =~ m/\.jpe?g$/i) {
1612                 return 'image/jpeg';
1613         } else {
1614                 return 'application/octet-stream';
1615         }
1616 }
1617
1618 ## ======================================================================
1619 ## functions printing HTML: header, footer, error page
1620
1621 sub git_header_html {
1622         my $status = shift || "200 OK";
1623         my $expires = shift;
1624
1625         my $title = "$site_name";
1626         if (defined $project) {
1627                 $title .= " - $project";
1628                 if (defined $action) {
1629                         $title .= "/$action";
1630                         if (defined $file_name) {
1631                                 $title .= " - " . esc_path($file_name);
1632                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1633                                         $title .= "/";
1634                                 }
1635                         }
1636                 }
1637         }
1638         my $content_type;
1639         # require explicit support from the UA if we are to send the page as
1640         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1641         # we have to do this because MSIE sometimes globs '*/*', pretending to
1642         # support xhtml+xml but choking when it gets what it asked for.
1643         if (defined $cgi->http('HTTP_ACCEPT') &&
1644             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1645             $cgi->Accept('application/xhtml+xml') != 0) {
1646                 $content_type = 'application/xhtml+xml';
1647         } else {
1648                 $content_type = 'text/html';
1649         }
1650         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1651                            -status=> $status, -expires => $expires);
1652         print <<EOF;
1653 <?xml version="1.0" encoding="utf-8"?>
1654 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1655 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1656 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1657 <!-- git core binaries version $git_version -->
1658 <head>
1659 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1660 <meta name="generator" content="gitweb/$version git/$git_version"/>
1661 <meta name="robots" content="index, nofollow"/>
1662 <title>$title</title>
1663 EOF
1664 # print out each stylesheet that exist
1665         if (defined $stylesheet) {
1666 #provides backwards capability for those people who define style sheet in a config file
1667                 print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1668         } else {
1669                 foreach my $stylesheet (@stylesheets) {
1670                         next unless $stylesheet;
1671                         print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1672                 }
1673         }
1674         if (defined $project) {
1675                 printf('<link rel="alternate" title="%s log" '.
1676                        'href="%s" type="application/rss+xml"/>'."\n",
1677                        esc_param($project), href(action=>"rss"));
1678         } else {
1679                 printf('<link rel="alternate" title="%s projects list" '.
1680                        'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1681                        $site_name, href(project=>undef, action=>"project_index"));
1682                 printf('<link rel="alternate" title="%s projects logs" '.
1683                        'href="%s" type="text/x-opml"/>'."\n",
1684                        $site_name, href(project=>undef, action=>"opml"));
1685         }
1686         if (defined $favicon) {
1687                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1688         }
1689
1690         print "</head>\n" .
1691               "<body>\n";
1692
1693         if (-f $site_header) {
1694                 open (my $fd, $site_header);
1695                 print <$fd>;
1696                 close $fd;
1697         }
1698
1699         print "<div class=\"page_header\">\n" .
1700               $cgi->a({-href => esc_url($logo_url),
1701                        -title => $logo_label},
1702                       qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1703         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1704         if (defined $project) {
1705                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1706                 if (defined $action) {
1707                         print " / $action";
1708                 }
1709                 print "\n";
1710                 if (!defined $searchtext) {
1711                         $searchtext = "";
1712                 }
1713                 my $search_hash;
1714                 if (defined $hash_base) {
1715                         $search_hash = $hash_base;
1716                 } elsif (defined $hash) {
1717                         $search_hash = $hash;
1718                 } else {
1719                         $search_hash = "HEAD";
1720                 }
1721                 $cgi->param("a", "search");
1722                 $cgi->param("h", $search_hash);
1723                 $cgi->param("p", $project);
1724                 print $cgi->startform(-method => "get", -action => $my_uri) .
1725                       "<div class=\"search\">\n" .
1726                       $cgi->hidden(-name => "p") . "\n" .
1727                       $cgi->hidden(-name => "a") . "\n" .
1728                       $cgi->hidden(-name => "h") . "\n" .
1729                       $cgi->popup_menu(-name => 'st', -default => 'commit',
1730                                        -values => ['commit', 'author', 'committer', 'pickaxe']) .
1731                       $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
1732                       " search:\n",
1733                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1734                       "</div>" .
1735                       $cgi->end_form() . "\n";
1736         }
1737         print "</div>\n";
1738 }
1739
1740 sub git_footer_html {
1741         print "<div class=\"page_footer\">\n";
1742         if (defined $project) {
1743                 my $descr = git_get_project_description($project);
1744                 if (defined $descr) {
1745                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1746                 }
1747                 print $cgi->a({-href => href(action=>"rss"),
1748                               -class => "rss_logo"}, "RSS") . "\n";
1749         } else {
1750                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1751                               -class => "rss_logo"}, "OPML") . " ";
1752                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1753                               -class => "rss_logo"}, "TXT") . "\n";
1754         }
1755         print "</div>\n" ;
1756
1757         if (-f $site_footer) {
1758                 open (my $fd, $site_footer);
1759                 print <$fd>;
1760                 close $fd;
1761         }
1762
1763         print "</body>\n" .
1764               "</html>";
1765 }
1766
1767 sub die_error {
1768         my $status = shift || "403 Forbidden";
1769         my $error = shift || "Malformed query, file missing or permission denied";
1770
1771         git_header_html($status);
1772         print <<EOF;
1773 <div class="page_body">
1774 <br /><br />
1775 $status - $error
1776 <br />
1777 </div>
1778 EOF
1779         git_footer_html();
1780         exit;
1781 }
1782
1783 ## ----------------------------------------------------------------------
1784 ## functions printing or outputting HTML: navigation
1785
1786 sub git_print_page_nav {
1787         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1788         $extra = '' if !defined $extra; # pager or formats
1789
1790         my @navs = qw(summary shortlog log commit commitdiff tree);
1791         if ($suppress) {
1792                 @navs = grep { $_ ne $suppress } @navs;
1793         }
1794
1795         my %arg = map { $_ => {action=>$_} } @navs;
1796         if (defined $head) {
1797                 for (qw(commit commitdiff)) {
1798                         $arg{$_}{hash} = $head;
1799                 }
1800                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1801                         for (qw(shortlog log)) {
1802                                 $arg{$_}{hash} = $head;
1803                         }
1804                 }
1805         }
1806         $arg{tree}{hash} = $treehead if defined $treehead;
1807         $arg{tree}{hash_base} = $treebase if defined $treebase;
1808
1809         print "<div class=\"page_nav\">\n" .
1810                 (join " | ",
1811                  map { $_ eq $current ?
1812                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1813                  } @navs);
1814         print "<br/>\n$extra<br/>\n" .
1815               "</div>\n";
1816 }
1817
1818 sub format_paging_nav {
1819         my ($action, $hash, $head, $page, $nrevs) = @_;
1820         my $paging_nav;
1821
1822
1823         if ($hash ne $head || $page) {
1824                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1825         } else {
1826                 $paging_nav .= "HEAD";
1827         }
1828
1829         if ($page > 0) {
1830                 $paging_nav .= " &sdot; " .
1831                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1832                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1833         } else {
1834                 $paging_nav .= " &sdot; prev";
1835         }
1836
1837         if ($nrevs >= (100 * ($page+1)-1)) {
1838                 $paging_nav .= " &sdot; " .
1839                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1840                                  -accesskey => "n", -title => "Alt-n"}, "next");
1841         } else {
1842                 $paging_nav .= " &sdot; next";
1843         }
1844
1845         return $paging_nav;
1846 }
1847
1848 ## ......................................................................
1849 ## functions printing or outputting HTML: div
1850
1851 sub git_print_header_div {
1852         my ($action, $title, $hash, $hash_base) = @_;
1853         my %args = ();
1854
1855         $args{action} = $action;
1856         $args{hash} = $hash if $hash;
1857         $args{hash_base} = $hash_base if $hash_base;
1858
1859         print "<div class=\"header\">\n" .
1860               $cgi->a({-href => href(%args), -class => "title"},
1861               $title ? $title : $action) .
1862               "\n</div>\n";
1863 }
1864
1865 #sub git_print_authorship (\%) {
1866 sub git_print_authorship {
1867         my $co = shift;
1868
1869         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1870         print "<div class=\"author_date\">" .
1871               esc_html($co->{'author_name'}) .
1872               " [$ad{'rfc2822'}";
1873         if ($ad{'hour_local'} < 6) {
1874                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1875                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1876         } else {
1877                 printf(" (%02d:%02d %s)",
1878                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1879         }
1880         print "]</div>\n";
1881 }
1882
1883 sub git_print_page_path {
1884         my $name = shift;
1885         my $type = shift;
1886         my $hb = shift;
1887
1888
1889         print "<div class=\"page_path\">";
1890         print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1891                       -title => 'tree root'}, "[$project]");
1892         print " / ";
1893         if (defined $name) {
1894                 my @dirname = split '/', $name;
1895                 my $basename = pop @dirname;
1896                 my $fullname = '';
1897
1898                 foreach my $dir (@dirname) {
1899                         $fullname .= ($fullname ? '/' : '') . $dir;
1900                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1901                                                      hash_base=>$hb),
1902                                       -title => esc_html($fullname)}, esc_path($dir));
1903                         print " / ";
1904                 }
1905                 if (defined $type && $type eq 'blob') {
1906                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1907                                                      hash_base=>$hb),
1908                                       -title => esc_html($name)}, esc_path($basename));
1909                 } elsif (defined $type && $type eq 'tree') {
1910                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1911                                                      hash_base=>$hb),
1912                                       -title => esc_html($name)}, esc_path($basename));
1913                         print " / ";
1914                 } else {
1915                         print esc_path($basename);
1916                 }
1917         }
1918         print "<br/></div>\n";
1919 }
1920
1921 # sub git_print_log (\@;%) {
1922 sub git_print_log ($;%) {
1923         my $log = shift;
1924         my %opts = @_;
1925
1926         if ($opts{'-remove_title'}) {
1927                 # remove title, i.e. first line of log
1928                 shift @$log;
1929         }
1930         # remove leading empty lines
1931         while (defined $log->[0] && $log->[0] eq "") {
1932                 shift @$log;
1933         }
1934
1935         # print log
1936         my $signoff = 0;
1937         my $empty = 0;
1938         foreach my $line (@$log) {
1939                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1940                         $signoff = 1;
1941                         $empty = 0;
1942                         if (! $opts{'-remove_signoff'}) {
1943                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1944                                 next;
1945                         } else {
1946                                 # remove signoff lines
1947                                 next;
1948                         }
1949                 } else {
1950                         $signoff = 0;
1951                 }
1952
1953                 # print only one empty line
1954                 # do not print empty line after signoff
1955                 if ($line eq "") {
1956                         next if ($empty || $signoff);
1957                         $empty = 1;
1958                 } else {
1959                         $empty = 0;
1960                 }
1961
1962                 print format_log_line_html($line) . "<br/>\n";
1963         }
1964
1965         if ($opts{'-final_empty_line'}) {
1966                 # end with single empty line
1967                 print "<br/>\n" unless $empty;
1968         }
1969 }
1970
1971 # print tree entry (row of git_tree), but without encompassing <tr> element
1972 sub git_print_tree_entry {
1973         my ($t, $basedir, $hash_base, $have_blame) = @_;
1974
1975         my %base_key = ();
1976         $base_key{hash_base} = $hash_base if defined $hash_base;
1977
1978         # The format of a table row is: mode list link.  Where mode is
1979         # the mode of the entry, list is the name of the entry, an href,
1980         # and link is the action links of the entry.
1981
1982         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1983         if ($t->{'type'} eq "blob") {
1984                 print "<td class=\"list\">" .
1985                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1986                                                file_name=>"$basedir$t->{'name'}", %base_key),
1987                                 -class => "list"}, esc_path($t->{'name'})) . "</td>\n";
1988                 print "<td class=\"link\">";
1989                 print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1990                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1991                               "blob");
1992                 if ($have_blame) {
1993                         print " | " .
1994                               $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1995                                                            file_name=>"$basedir$t->{'name'}", %base_key)},
1996                                             "blame");
1997                 }
1998                 if (defined $hash_base) {
1999                         print " | " .
2000                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2001                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
2002                                       "history");
2003                 }
2004                 print " | " .
2005                         $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
2006                                                file_name=>"$basedir$t->{'name'}")},
2007                                 "raw");
2008                 print "</td>\n";
2009
2010         } elsif ($t->{'type'} eq "tree") {
2011                 print "<td class=\"list\">";
2012                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2013                                              file_name=>"$basedir$t->{'name'}", %base_key)},
2014                               esc_path($t->{'name'}));
2015                 print "</td>\n";
2016                 print "<td class=\"link\">";
2017                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2018                                              file_name=>"$basedir$t->{'name'}", %base_key)},
2019                               "tree");
2020                 if (defined $hash_base) {
2021                         print " | " .
2022                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2023                                                      file_name=>"$basedir$t->{'name'}")},
2024                                       "history");
2025                 }
2026                 print "</td>\n";
2027         }
2028 }
2029
2030 ## ......................................................................
2031 ## functions printing large fragments of HTML
2032
2033 sub git_difftree_body {
2034         my ($difftree, $hash, $parent) = @_;
2035         my ($have_blame) = gitweb_check_feature('blame');
2036         print "<div class=\"list_head\">\n";
2037         if ($#{$difftree} > 10) {
2038                 print(($#{$difftree} + 1) . " files changed:\n");
2039         }
2040         print "</div>\n";
2041
2042         print "<table class=\"diff_tree\">\n";
2043         my $alternate = 1;
2044         my $patchno = 0;
2045         foreach my $line (@{$difftree}) {
2046                 my %diff = parse_difftree_raw_line($line);
2047
2048                 if ($alternate) {
2049                         print "<tr class=\"dark\">\n";
2050                 } else {
2051                         print "<tr class=\"light\">\n";
2052                 }
2053                 $alternate ^= 1;
2054
2055                 my ($to_mode_oct, $to_mode_str, $to_file_type);
2056                 my ($from_mode_oct, $from_mode_str, $from_file_type);
2057                 if ($diff{'to_mode'} ne ('0' x 6)) {
2058                         $to_mode_oct = oct $diff{'to_mode'};
2059                         if (S_ISREG($to_mode_oct)) { # only for regular file
2060                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
2061                         }
2062                         $to_file_type = file_type($diff{'to_mode'});
2063                 }
2064                 if ($diff{'from_mode'} ne ('0' x 6)) {
2065                         $from_mode_oct = oct $diff{'from_mode'};
2066                         if (S_ISREG($to_mode_oct)) { # only for regular file
2067                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
2068                         }
2069                         $from_file_type = file_type($diff{'from_mode'});
2070                 }
2071
2072                 if ($diff{'status'} eq "A") { # created
2073                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
2074                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
2075                         $mode_chng   .= "]</span>";
2076                         print "<td>";
2077                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2078                                                      hash_base=>$hash, file_name=>$diff{'file'}),
2079                                       -class => "list"}, esc_path($diff{'file'}));
2080                         print "</td>\n";
2081                         print "<td>$mode_chng</td>\n";
2082                         print "<td class=\"link\">";
2083                         if ($action eq 'commitdiff') {
2084                                 # link to patch
2085                                 $patchno++;
2086                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
2087                         }
2088                         print "</td>\n";
2089
2090                 } elsif ($diff{'status'} eq "D") { # deleted
2091                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
2092                         print "<td>";
2093                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2094                                                      hash_base=>$parent, file_name=>$diff{'file'}),
2095                                        -class => "list"}, esc_path($diff{'file'}));
2096                         print "</td>\n";
2097                         print "<td>$mode_chng</td>\n";
2098                         print "<td class=\"link\">";
2099                         if ($action eq 'commitdiff') {
2100                                 # link to patch
2101                                 $patchno++;
2102                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
2103                                 print " | ";
2104                         }
2105                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2106                                                      hash_base=>$parent, file_name=>$diff{'file'})},
2107                                       "blob") . " | ";
2108                         if ($have_blame) {
2109                                 print $cgi->a({-href =>
2110                                                    href(action=>"blame",
2111                                                         hash_base=>$parent,
2112                                                         file_name=>$diff{'file'})},
2113                                               "blame") . " | ";
2114                         }
2115                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2116                                                      file_name=>$diff{'file'})},
2117                                       "history");
2118                         print "</td>\n";
2119
2120                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
2121                         my $mode_chnge = "";
2122                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
2123                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
2124                                 if ($from_file_type != $to_file_type) {
2125                                         $mode_chnge .= " from $from_file_type to $to_file_type";
2126                                 }
2127                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
2128                                         if ($from_mode_str && $to_mode_str) {
2129                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
2130                                         } elsif ($to_mode_str) {
2131                                                 $mode_chnge .= " mode: $to_mode_str";
2132                                         }
2133                                 }
2134                                 $mode_chnge .= "]</span>\n";
2135                         }
2136                         print "<td>";
2137                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2138                                                      hash_base=>$hash, file_name=>$diff{'file'}),
2139                                       -class => "list"}, esc_path($diff{'file'}));
2140                         print "</td>\n";
2141                         print "<td>$mode_chnge</td>\n";
2142                         print "<td class=\"link\">";
2143                         if ($action eq 'commitdiff') {
2144                                 # link to patch
2145                                 $patchno++;
2146                                 print $cgi->a({-href => "#patch$patchno"}, "patch") .
2147                                       " | ";
2148                         } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2149                                 # "commit" view and modified file (not onlu mode changed)
2150                                 print $cgi->a({-href => href(action=>"blobdiff",
2151                                                              hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2152                                                              hash_base=>$hash, hash_parent_base=>$parent,
2153                                                              file_name=>$diff{'file'})},
2154                                               "diff") .
2155                                       " | ";
2156                         }
2157                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2158                                                      hash_base=>$hash, file_name=>$diff{'file'})},
2159                                       "blob") . " | ";
2160                         if ($have_blame) {
2161                                 print $cgi->a({-href => href(action=>"blame",
2162                                                              hash_base=>$hash,
2163                                                              file_name=>$diff{'file'})},
2164                                               "blame") . " | ";
2165                         }
2166                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2167                                                      file_name=>$diff{'file'})},
2168                                       "history");
2169                         print "</td>\n";
2170
2171                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
2172                         my %status_name = ('R' => 'moved', 'C' => 'copied');
2173                         my $nstatus = $status_name{$diff{'status'}};
2174                         my $mode_chng = "";
2175                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
2176                                 # mode also for directories, so we cannot use $to_mode_str
2177                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
2178                         }
2179                         print "<td>" .
2180                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2181                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
2182                                       -class => "list"}, esc_path($diff{'to_file'})) . "</td>\n" .
2183                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
2184                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
2185                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
2186                                       -class => "list"}, esc_path($diff{'from_file'})) .
2187                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
2188                               "<td class=\"link\">";
2189                         if ($action eq 'commitdiff') {
2190                                 # link to patch
2191                                 $patchno++;
2192                                 print $cgi->a({-href => "#patch$patchno"}, "patch") .
2193                                       " | ";
2194                         } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2195                                 # "commit" view and modified file (not only pure rename or copy)
2196                                 print $cgi->a({-href => href(action=>"blobdiff",
2197                                                              hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2198                                                              hash_base=>$hash, hash_parent_base=>$parent,
2199                                                              file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
2200                                               "diff") .
2201                                       " | ";
2202                         }
2203                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2204                                                      hash_base=>$parent, file_name=>$diff{'from_file'})},
2205                                       "blob") . " | ";
2206                         if ($have_blame) {
2207                                 print $cgi->a({-href => href(action=>"blame",
2208                                                              hash_base=>$hash,
2209                                                              file_name=>$diff{'to_file'})},
2210                                               "blame") . " | ";
2211                         }
2212                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2213                                                     file_name=>$diff{'from_file'})},
2214                                       "history");
2215                         print "</td>\n";
2216
2217                 } # we should not encounter Unmerged (U) or Unknown (X) status
2218                 print "</tr>\n";
2219         }
2220         print "</table>\n";
2221 }
2222
2223 sub git_patchset_body {
2224         my ($fd, $difftree, $hash, $hash_parent) = @_;
2225
2226         my $patch_idx = 0;
2227         my $patch_line;
2228         my $diffinfo;
2229         my (%from, %to);
2230         my ($from_id, $to_id);
2231
2232         print "<div class=\"patchset\">\n";
2233
2234         # skip to first patch
2235         while ($patch_line = <$fd>) {
2236                 chomp $patch_line;
2237
2238                 last if ($patch_line =~ m/^diff /);
2239         }
2240
2241  PATCH:
2242         while ($patch_line) {
2243                 my @diff_header;
2244
2245                 # git diff header
2246                 #assert($patch_line =~ m/^diff /) if DEBUG;
2247                 #assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
2248                 push @diff_header, $patch_line;
2249
2250                 # extended diff header
2251         EXTENDED_HEADER:
2252                 while ($patch_line = <$fd>) {
2253                         chomp $patch_line;
2254
2255                         last EXTENDED_HEADER if ($patch_line =~ m/^--- /);
2256
2257                         if ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
2258                                 $from_id = $1;
2259                                 $to_id   = $2;
2260                         }
2261
2262                         push @diff_header, $patch_line;
2263                 }
2264                 #last PATCH unless $patch_line;
2265                 my $last_patch_line = $patch_line;
2266
2267                 # check if current patch belong to current raw line
2268                 # and parse raw git-diff line if needed
2269                 if (defined $diffinfo &&
2270                     $diffinfo->{'from_id'} eq $from_id &&
2271                     $diffinfo->{'to_id'}   eq $to_id) {
2272                         # this is split patch
2273                         print "<div class=\"patch cont\">\n";
2274                 } else {
2275                         # advance raw git-diff output if needed
2276                         $patch_idx++ if defined $diffinfo;
2277
2278                         # read and prepare patch information
2279                         if (ref($difftree->[$patch_idx]) eq "HASH") {
2280                                 # pre-parsed (or generated by hand)
2281                                 $diffinfo = $difftree->[$patch_idx];
2282                         } else {
2283                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2284                         }
2285                         $from{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
2286                         $to{'file'}   = $diffinfo->{'to_file'}   || $diffinfo->{'file'};
2287                         if ($diffinfo->{'status'} ne "A") { # not new (added) file
2288                                 $from{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2289                                                      hash=>$diffinfo->{'from_id'},
2290                                                      file_name=>$from{'file'});
2291                         }
2292                         if ($diffinfo->{'status'} ne "D") { # not deleted file
2293                                 $to{'href'} = href(action=>"blob", hash_base=>$hash,
2294                                                    hash=>$diffinfo->{'to_id'},
2295                                                    file_name=>$to{'file'});
2296                         }
2297                         # this is first patch for raw difftree line with $patch_idx index
2298                         # we index @$difftree array from 0, but number patches from 1
2299                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2300                 }
2301
2302                 # print "git diff" header
2303                 $patch_line = shift @diff_header;
2304                 $patch_line =~ s!^(diff (.*?) )"?a/.*$!$1!;
2305                 if ($from{'href'}) {
2306                         $patch_line .= $cgi->a({-href => $from{'href'}, -class => "path"},
2307                                                'a/' . esc_path($from{'file'}));
2308                 } else { # file was added
2309                         $patch_line .= 'a/' . esc_path($from{'file'});
2310                 }
2311                 $patch_line .= ' ';
2312                 if ($to{'href'}) {
2313                         $patch_line .= $cgi->a({-href => $to{'href'}, -class => "path"},
2314                                                'b/' . esc_path($to{'file'}));
2315                 } else { # file was deleted
2316                         $patch_line .= 'b/' . esc_path($to{'file'});
2317                 }
2318                 print "<div class=\"diff header\">$patch_line</div>\n";
2319
2320                 # print extended diff header
2321                 print "<div class=\"diff extended_header\">\n" if (@diff_header > 0);
2322         EXTENDED_HEADER:
2323                 foreach $patch_line (@diff_header) {
2324                         # match <path>
2325                         if ($patch_line =~ s!^((copy|rename) from ).*$!$1! && $from{'href'}) {
2326                                 $patch_line .= $cgi->a({-href=>$from{'href'}, -class=>"path"},
2327                                                         esc_path($from{'file'}));
2328                         }
2329                         if ($patch_line =~ s!^((copy|rename) to ).*$!$1! && $to{'href'}) {
2330                                 $patch_line = $cgi->a({-href=>$to{'href'}, -class=>"path"},
2331                                                       esc_path($to{'file'}));
2332                         }
2333                         # match <mode>
2334                         if ($patch_line =~ m/\s(\d{6})$/) {
2335                                 $patch_line .= '<span class="info"> (' .
2336                                                file_type_long($1) .
2337                                                ')</span>';
2338                         }
2339                         # match <hash>
2340                         if ($patch_line =~ m/^index/) {
2341                                 my ($from_link, $to_link);
2342                                 if ($from{'href'}) {
2343                                         $from_link = $cgi->a({-href=>$from{'href'}, -class=>"hash"},
2344                                                              substr($diffinfo->{'from_id'},0,7));
2345                                 } else {
2346                                         $from_link = '0' x 7;
2347                                 }
2348                                 if ($to{'href'}) {
2349                                         $to_link = $cgi->a({-href=>$to{'href'}, -class=>"hash"},
2350                                                            substr($diffinfo->{'to_id'},0,7));
2351                                 } else {
2352                                         $to_link = '0' x 7;
2353                                 }
2354                                 #affirm {
2355                                 #       my ($from_hash, $to_hash) =
2356                                 #               ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/);
2357                                 #       my ($from_id, $to_id) =
2358                                 #               ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2359                                 #       ($from_hash eq $from_id) && ($to_hash eq $to_id);
2360                                 #} if DEBUG;
2361                                 my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2362                                 $patch_line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
2363                         }
2364                         print $patch_line . "<br/>\n";
2365                 }
2366                 print "</div>\n"  if (@diff_header > 0); # class="diff extended_header"
2367
2368                 # from-file/to-file diff header
2369                 $patch_line = $last_patch_line;
2370                 #assert($patch_line =~ m/^---/) if DEBUG;
2371                 if ($from{'href'}) {
2372                         $patch_line = '--- a/' .
2373                                       $cgi->a({-href=>$from{'href'}, -class=>"path"},
2374                                               esc_path($from{'file'}));
2375                 }
2376                 print "<div class=\"diff from_file\">$patch_line</div>\n";
2377
2378                 $patch_line = <$fd>;
2379                 #last PATCH unless $patch_line;
2380                 chomp $patch_line;
2381
2382                 #assert($patch_line =~ m/^+++/) if DEBUG;
2383                 if ($to{'href'}) {
2384                         $patch_line = '+++ b/' .
2385                                       $cgi->a({-href=>$to{'href'}, -class=>"path"},
2386                                               esc_path($to{'file'}));
2387                 }
2388                 print "<div class=\"diff to_file\">$patch_line</div>\n";
2389
2390                 # the patch itself
2391         LINE:
2392                 while ($patch_line = <$fd>) {
2393                         chomp $patch_line;
2394
2395                         next PATCH if ($patch_line =~ m/^diff /);
2396
2397                         print format_diff_line($patch_line, \%from, \%to);
2398                 }
2399
2400         } continue {
2401                 print "</div>\n"; # class="patch"
2402         }
2403
2404         print "</div>\n"; # class="patchset"
2405 }
2406
2407 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2408
2409 sub git_project_list_body {
2410         my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
2411
2412         my ($check_forks) = gitweb_check_feature('forks');
2413
2414         my @projects;
2415         foreach my $pr (@$projlist) {
2416                 my (@aa) = git_get_last_activity($pr->{'path'});
2417                 unless (@aa) {
2418                         next;
2419                 }
2420                 ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2421                 if (!defined $pr->{'descr'}) {
2422                         my $descr = git_get_project_description($pr->{'path'}) || "";
2423                         $pr->{'descr'} = chop_str($descr, 25, 5);
2424                 }
2425                 if (!defined $pr->{'owner'}) {
2426                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2427                 }
2428                 if ($check_forks) {
2429                         my $pname = $pr->{'path'};
2430                         if (($pname =~ s/\.git$//) &&
2431                             ($pname !~ /\/$/) &&
2432                             (-d "$projectroot/$pname")) {
2433                                 $pr->{'forks'} = "-d $projectroot/$pname";
2434                         }
2435                         else {
2436                                 $pr->{'forks'} = 0;
2437                         }
2438                 }
2439                 push @projects, $pr;
2440         }
2441
2442         $order ||= "project";
2443         $from = 0 unless defined $from;
2444         $to = $#projects if (!defined $to || $#projects < $to);
2445
2446         print "<table class=\"project_list\">\n";
2447         unless ($no_header) {
2448                 print "<tr>\n";
2449                 if ($check_forks) {
2450                         print "<th></th>\n";
2451                 }
2452                 if ($order eq "project") {
2453                         @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2454                         print "<th>Project</th>\n";
2455                 } else {
2456                         print "<th>" .
2457                               $cgi->a({-href => href(project=>undef, order=>'project'),
2458                                        -class => "header"}, "Project") .
2459                               "</th>\n";
2460                 }
2461                 if ($order eq "descr") {
2462                         @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2463                         print "<th>Description</th>\n";
2464                 } else {
2465                         print "<th>" .
2466                               $cgi->a({-href => href(project=>undef, order=>'descr'),
2467                                        -class => "header"}, "Description") .
2468                               "</th>\n";
2469                 }
2470                 if ($order eq "owner") {
2471                         @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2472                         print "<th>Owner</th>\n";
2473                 } else {
2474                         print "<th>" .
2475                               $cgi->a({-href => href(project=>undef, order=>'owner'),
2476                                        -class => "header"}, "Owner") .
2477                               "</th>\n";
2478                 }
2479                 if ($order eq "age") {
2480                         @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2481                         print "<th>Last Change</th>\n";
2482                 } else {
2483                         print "<th>" .
2484                               $cgi->a({-href => href(project=>undef, order=>'age'),
2485                                        -class => "header"}, "Last Change") .
2486                               "</th>\n";
2487                 }
2488                 print "<th></th>\n" .
2489                       "</tr>\n";
2490         }
2491         my $alternate = 1;
2492         for (my $i = $from; $i <= $to; $i++) {
2493                 my $pr = $projects[$i];
2494                 if ($alternate) {
2495                         print "<tr class=\"dark\">\n";
2496                 } else {
2497                         print "<tr class=\"light\">\n";
2498                 }
2499                 $alternate ^= 1;
2500                 if ($check_forks) {
2501                         print "<td>";
2502                         if ($pr->{'forks'}) {
2503                                 print "<!-- $pr->{'forks'} -->\n";
2504                                 print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
2505                         }
2506                         print "</td>\n";
2507                 }
2508                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2509                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2510                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2511                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2512                 print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2513                       $pr->{'age_string'} . "</td>\n" .
2514                       "<td class=\"link\">" .
2515                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2516                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2517                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2518                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2519                       ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
2520                       "</td>\n" .
2521                       "</tr>\n";
2522         }
2523         if (defined $extra) {
2524                 print "<tr>\n";
2525                 if ($check_forks) {
2526                         print "<td></td>\n";
2527                 }
2528                 print "<td colspan=\"5\">$extra</td>\n" .
2529                       "</tr>\n";
2530         }
2531         print "</table>\n";
2532 }
2533
2534 sub git_shortlog_body {
2535         # uses global variable $project
2536         my ($revlist, $from, $to, $refs, $extra) = @_;
2537
2538         $from = 0 unless defined $from;
2539         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2540
2541         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2542         my $alternate = 1;
2543         for (my $i = $from; $i <= $to; $i++) {
2544                 my $commit = $revlist->[$i];
2545                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2546                 my $ref = format_ref_marker($refs, $commit);
2547                 my %co = parse_commit($commit);
2548                 if ($alternate) {
2549                         print "<tr class=\"dark\">\n";
2550                 } else {
2551                         print "<tr class=\"light\">\n";
2552                 }
2553                 $alternate ^= 1;
2554                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2555                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2556                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2557                       "<td>";
2558                 print format_subject_html($co{'title'}, $co{'title_short'},
2559                                           href(action=>"commit", hash=>$commit), $ref);
2560                 print "</td>\n" .
2561                       "<td class=\"link\">" .
2562                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2563                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2564                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2565                 if (gitweb_have_snapshot()) {
2566                         print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2567                 }
2568                 print "</td>\n" .
2569                       "</tr>\n";
2570         }
2571         if (defined $extra) {
2572                 print "<tr>\n" .
2573                       "<td colspan=\"4\">$extra</td>\n" .
2574                       "</tr>\n";
2575         }
2576         print "</table>\n";
2577 }
2578
2579 sub git_history_body {
2580         # Warning: assumes constant type (blob or tree) during history
2581         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2582
2583         $from = 0 unless defined $from;
2584         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2585
2586         print "<table class=\"history\" cellspacing=\"0\">\n";
2587         my $alternate = 1;
2588         for (my $i = $from; $i <= $to; $i++) {
2589                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2590                         next;
2591                 }
2592
2593                 my $commit = $1;
2594                 my %co = parse_commit($commit);
2595                 if (!%co) {
2596                         next;
2597                 }
2598
2599                 my $ref = format_ref_marker($refs, $commit);
2600
2601                 if ($alternate) {
2602                         print "<tr class=\"dark\">\n";
2603                 } else {
2604                         print "<tr class=\"light\">\n";
2605                 }
2606                 $alternate ^= 1;
2607                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2608                       # shortlog uses      chop_str($co{'author_name'}, 10)
2609                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2610                       "<td>";
2611                 # originally git_history used chop_str($co{'title'}, 50)
2612                 print format_subject_html($co{'title'}, $co{'title_short'},
2613                                           href(action=>"commit", hash=>$commit), $ref);
2614                 print "</td>\n" .
2615                       "<td class=\"link\">" .
2616                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2617                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2618
2619                 if ($ftype eq 'blob') {
2620                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2621                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2622                         if (defined $blob_current && defined $blob_parent &&
2623                                         $blob_current ne $blob_parent) {
2624                                 print " | " .
2625                                         $cgi->a({-href => href(action=>"blobdiff",
2626                                                                hash=>$blob_current, hash_parent=>$blob_parent,
2627                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
2628                                                                file_name=>$file_name)},
2629                                                 "diff to current");
2630                         }
2631                 }
2632                 print "</td>\n" .
2633                       "</tr>\n";
2634         }
2635         if (defined $extra) {
2636                 print "<tr>\n" .
2637                       "<td colspan=\"4\">$extra</td>\n" .
2638                       "</tr>\n";
2639         }
2640         print "</table>\n";
2641 }
2642
2643 sub git_tags_body {
2644         # uses global variable $project
2645         my ($taglist, $from, $to, $extra) = @_;
2646         $from = 0 unless defined $from;
2647         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2648
2649         print "<table class=\"tags\" cellspacing=\"0\">\n";
2650         my $alternate = 1;
2651         for (my $i = $from; $i <= $to; $i++) {
2652                 my $entry = $taglist->[$i];
2653                 my %tag = %$entry;
2654                 my $comment = $tag{'subject'};
2655                 my $comment_short;
2656                 if (defined $comment) {
2657                         $comment_short = chop_str($comment, 30, 5);
2658                 }
2659                 if ($alternate) {
2660                         print "<tr class=\"dark\">\n";
2661                 } else {
2662                         print "<tr class=\"light\">\n";
2663                 }
2664                 $alternate ^= 1;
2665                 print "<td><i>$tag{'age'}</i></td>\n" .
2666                       "<td>" .
2667                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2668                                -class => "list name"}, esc_html($tag{'name'})) .
2669                       "</td>\n" .
2670                       "<td>";
2671                 if (defined $comment) {
2672                         print format_subject_html($comment, $comment_short,
2673                                                   href(action=>"tag", hash=>$tag{'id'}));
2674                 }
2675                 print "</td>\n" .
2676                       "<td class=\"selflink\">";
2677                 if ($tag{'type'} eq "tag") {
2678                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2679                 } else {
2680                         print "&nbsp;";
2681                 }
2682                 print "</td>\n" .
2683                       "<td class=\"link\">" . " | " .
2684                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2685                 if ($tag{'reftype'} eq "commit") {
2686                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2687                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
2688                 } elsif ($tag{'reftype'} eq "blob") {
2689                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2690                 }
2691                 print "</td>\n" .
2692                       "</tr>";
2693         }
2694         if (defined $extra) {
2695                 print "<tr>\n" .
2696                       "<td colspan=\"5\">$extra</td>\n" .
2697                       "</tr>\n";
2698         }
2699         print "</table>\n";
2700 }
2701
2702 sub git_heads_body {
2703         # uses global variable $project
2704         my ($headlist, $head, $from, $to, $extra) = @_;
2705         $from = 0 unless defined $from;
2706         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2707
2708         print "<table class=\"heads\" cellspacing=\"0\">\n";
2709         my $alternate = 1;
2710         for (my $i = $from; $i <= $to; $i++) {
2711                 my $entry = $headlist->[$i];
2712                 my %ref = %$entry;
2713                 my $curr = $ref{'id'} eq $head;
2714                 if ($alternate) {
2715                         print "<tr class=\"dark\">\n";
2716                 } else {
2717                         print "<tr class=\"light\">\n";
2718                 }
2719                 $alternate ^= 1;
2720                 print "<td><i>$ref{'age'}</i></td>\n" .
2721                       ($curr ? "<td class=\"current_head\">" : "<td>") .
2722                       $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
2723                                -class => "list name"},esc_html($ref{'name'})) .
2724                       "</td>\n" .
2725                       "<td class=\"link\">" .
2726                       $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
2727                       $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
2728                       $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
2729                       "</td>\n" .
2730                       "</tr>";
2731         }
2732         if (defined $extra) {
2733                 print "<tr>\n" .
2734                       "<td colspan=\"3\">$extra</td>\n" .
2735                       "</tr>\n";
2736         }
2737         print "</table>\n";
2738 }
2739
2740 ## ======================================================================
2741 ## ======================================================================
2742 ## actions
2743
2744 sub git_project_list {
2745         my $order = $cgi->param('o');
2746         if (defined $order && $order !~ m/project|descr|owner|age/) {
2747                 die_error(undef, "Unknown order parameter");
2748         }
2749
2750         my @list = git_get_projects_list();
2751         if (!@list) {
2752                 die_error(undef, "No projects found");
2753         }
2754
2755         git_header_html();
2756         if (-f $home_text) {
2757                 print "<div class=\"index_include\">\n";
2758                 open (my $fd, $home_text);
2759                 print <$fd>;
2760                 close $fd;
2761                 print "</div>\n";
2762         }
2763         git_project_list_body(\@list, $order);
2764         git_footer_html();
2765 }
2766
2767 sub git_forks {
2768         my $order = $cgi->param('o');
2769         if (defined $order && $order !~ m/project|descr|owner|age/) {
2770                 die_error(undef, "Unknown order parameter");
2771         }
2772
2773         my @list = git_get_projects_list($project);
2774         if (!@list) {
2775                 die_error(undef, "No forks found");
2776         }
2777
2778         git_header_html();
2779         git_print_page_nav('','');
2780         git_print_header_div('summary', "$project forks");
2781         git_project_list_body(\@list, $order);
2782         git_footer_html();
2783 }
2784
2785 sub git_project_index {
2786         my @projects = git_get_projects_list($project);
2787
2788         print $cgi->header(
2789                 -type => 'text/plain',
2790                 -charset => 'utf-8',
2791                 -content_disposition => 'inline; filename="index.aux"');
2792
2793         foreach my $pr (@projects) {
2794                 if (!exists $pr->{'owner'}) {
2795                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2796                 }
2797
2798                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2799                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2800                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2801                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2802                 $path  =~ s/ /\+/g;
2803                 $owner =~ s/ /\+/g;
2804
2805                 print "$path $owner\n";
2806         }
2807 }
2808
2809 sub git_summary {
2810         my $descr = git_get_project_description($project) || "none";
2811         my $head = git_get_head_hash($project);
2812         my %co = parse_commit($head);
2813         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2814
2815         my $owner = git_get_project_owner($project);
2816
2817         my $refs = git_get_references();
2818         my @taglist  = git_get_tags_list(15);
2819         my @headlist = git_get_heads_list(15);
2820         my @forklist;
2821         my ($check_forks) = gitweb_check_feature('forks');
2822
2823         if ($check_forks) {
2824                 @forklist = git_get_projects_list($project);
2825         }
2826
2827         git_header_html();
2828         git_print_page_nav('summary','', $head);
2829
2830         print "<div class=\"title\">&nbsp;</div>\n";
2831         print "<table cellspacing=\"0\">\n" .
2832               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2833               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2834               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2835         # use per project git URL list in $projectroot/$project/cloneurl
2836         # or make project git URL from git base URL and project name
2837         my $url_tag = "URL";
2838         my @url_list = git_get_project_url_list($project);
2839         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2840         foreach my $git_url (@url_list) {
2841                 next unless $git_url;
2842                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2843                 $url_tag = "";
2844         }
2845         print "</table>\n";
2846
2847         if (-s "$projectroot/$project/README.html") {
2848                 if (open my $fd, "$projectroot/$project/README.html") {
2849                         print "<div class=\"title\">readme</div>\n";
2850                         print $_ while (<$fd>);
2851                         close $fd;
2852                 }
2853         }
2854
2855         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2856                 git_get_head_hash($project), "--"
2857                 or die_error(undef, "Open git-rev-list failed");
2858         my @revlist = map { chomp; $_ } <$fd>;
2859         close $fd;
2860         git_print_header_div('shortlog');
2861         git_shortlog_body(\@revlist, 0, 15, $refs,
2862                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2863
2864         if (@taglist) {
2865                 git_print_header_div('tags');
2866                 git_tags_body(\@taglist, 0, 15,
2867                               $cgi->a({-href => href(action=>"tags")}, "..."));
2868         }
2869
2870         if (@headlist) {
2871                 git_print_header_div('heads');
2872                 git_heads_body(\@headlist, $head, 0, 15,
2873                                $cgi->a({-href => href(action=>"heads")}, "..."));
2874         }
2875
2876         if (@forklist) {
2877                 git_print_header_div('forks');
2878                 git_project_list_body(\@forklist, undef, 0, 15,
2879                                       $cgi->a({-href => href(action=>"forks")}, "..."),
2880                                       'noheader');
2881         }
2882
2883         git_footer_html();
2884 }
2885
2886 sub git_tag {
2887         my $head = git_get_head_hash($project);
2888         git_header_html();
2889         git_print_page_nav('','', $head,undef,$head);
2890         my %tag = parse_tag($hash);
2891         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2892         print "<div class=\"title_text\">\n" .
2893               "<table cellspacing=\"0\">\n" .
2894               "<tr>\n" .
2895               "<td>object</td>\n" .
2896               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2897                                $tag{'object'}) . "</td>\n" .
2898               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2899                                               $tag{'type'}) . "</td>\n" .
2900               "</tr>\n";
2901         if (defined($tag{'author'})) {
2902                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2903                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2904                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2905                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2906                         "</td></tr>\n";
2907         }
2908         print "</table>\n\n" .
2909               "</div>\n";
2910         print "<div class=\"page_body\">";
2911         my $comment = $tag{'comment'};
2912         foreach my $line (@$comment) {
2913                 chomp($line);
2914                 print esc_html($line) . "<br/>\n";
2915         }
2916         print "</div>\n";
2917         git_footer_html();
2918 }
2919
2920 sub git_blame2 {
2921         my $fd;
2922         my $ftype;
2923
2924         my ($have_blame) = gitweb_check_feature('blame');
2925         if (!$have_blame) {
2926                 die_error('403 Permission denied', "Permission denied");
2927         }
2928         die_error('404 Not Found', "File name not defined") if (!$file_name);
2929         $hash_base ||= git_get_head_hash($project);
2930         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2931         my %co = parse_commit($hash_base)
2932                 or die_error(undef, "Reading commit failed");
2933         if (!defined $hash) {
2934                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2935                         or die_error(undef, "Error looking up file");
2936         }
2937         $ftype = git_get_type($hash);
2938         if ($ftype !~ "blob") {
2939                 die_error("400 Bad Request", "Object is not a blob");
2940         }
2941         open ($fd, "-|", git_cmd(), "blame", '-p', '--',
2942               $file_name, $hash_base)
2943                 or die_error(undef, "Open git-blame failed");
2944         git_header_html();
2945         my $formats_nav =
2946                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2947                         "blob") .
2948                 " | " .
2949                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2950                         "history") .
2951                 " | " .
2952                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2953                         "HEAD");
2954         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2955         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2956         git_print_page_path($file_name, $ftype, $hash_base);
2957         my @rev_color = (qw(light2 dark2));
2958         my $num_colors = scalar(@rev_color);
2959         my $current_color = 0;
2960         my $last_rev;
2961         print <<HTML;
2962 <div class="page_body">
2963 <table class="blame">
2964 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2965 HTML
2966         my %metainfo = ();
2967         while (1) {
2968                 $_ = <$fd>;
2969                 last unless defined $_;
2970                 my ($full_rev, $orig_lineno, $lineno, $group_size) =
2971                     /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
2972                 if (!exists $metainfo{$full_rev}) {
2973                         $metainfo{$full_rev} = {};
2974                 }
2975                 my $meta = $metainfo{$full_rev};
2976                 while (<$fd>) {
2977                         last if (s/^\t//);
2978                         if (/^(\S+) (.*)$/) {
2979                                 $meta->{$1} = $2;
2980                         }
2981                 }
2982                 my $data = $_;
2983                 chomp($data);
2984                 my $rev = substr($full_rev, 0, 8);
2985                 my $author = $meta->{'author'};
2986                 my %date = parse_date($meta->{'author-time'},
2987                                       $meta->{'author-tz'});
2988                 my $date = $date{'iso-tz'};
2989                 if ($group_size) {
2990                         $current_color = ++$current_color % $num_colors;
2991                 }
2992                 print "<tr class=\"$rev_color[$current_color]\">\n";
2993                 if ($group_size) {
2994                         print "<td class=\"sha1\"";
2995                         print " title=\"". esc_html($author) . ", $date\"";
2996                         print " rowspan=\"$group_size\"" if ($group_size > 1);
2997                         print ">";
2998                         print $cgi->a({-href => href(action=>"commit",
2999                                                      hash=>$full_rev,
3000                                                      file_name=>$file_name)},
3001                                       esc_html($rev));
3002                         print "</td>\n";
3003                 }
3004                 my $blamed = href(action => 'blame',
3005                                   file_name => $meta->{'filename'},
3006                                   hash_base => $full_rev);
3007                 print "<td class=\"linenr\">";
3008                 print $cgi->a({ -href => "$blamed#l$orig_lineno",
3009                                 -id => "l$lineno",
3010                                 -class => "linenr" },
3011                               esc_html($lineno));
3012                 print "</td>";
3013                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
3014                 print "</tr>\n";
3015         }
3016         print "</table>\n";
3017         print "</div>";
3018         close $fd
3019                 or print "Reading blob failed\n";
3020         git_footer_html();
3021 }
3022
3023 sub git_blame {
3024         my $fd;
3025
3026         my ($have_blame) = gitweb_check_feature('blame');
3027         if (!$have_blame) {
3028                 die_error('403 Permission denied', "Permission denied");
3029         }
3030         die_error('404 Not Found', "File name not defined") if (!$file_name);
3031         $hash_base ||= git_get_head_hash($project);
3032         die_error(undef, "Couldn't find base commit") unless ($hash_base);
3033         my %co = parse_commit($hash_base)
3034                 or die_error(undef, "Reading commit failed");
3035         if (!defined $hash) {
3036                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3037                         or die_error(undef, "Error lookup file");
3038         }
3039         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
3040                 or die_error(undef, "Open git-annotate failed");
3041         git_header_html();
3042         my $formats_nav =
3043                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3044                         "blob") .
3045                 " | " .
3046                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3047                         "history") .
3048                 " | " .
3049                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3050                         "HEAD");
3051         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3052         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3053         git_print_page_path($file_name, 'blob', $hash_base);
3054         print "<div class=\"page_body\">\n";
3055         print <<HTML;
3056 <table class="blame">
3057   <tr>
3058     <th>Commit</th>
3059     <th>Age</th>
3060     <th>Author</th>
3061     <th>Line</th>
3062     <th>Data</th>
3063   </tr>
3064 HTML
3065         my @line_class = (qw(light dark));
3066         my $line_class_len = scalar (@line_class);
3067         my $line_class_num = $#line_class;
3068         while (my $line = <$fd>) {
3069                 my $long_rev;
3070                 my $short_rev;
3071                 my $author;
3072                 my $time;
3073                 my $lineno;
3074                 my $data;
3075                 my $age;
3076                 my $age_str;
3077                 my $age_class;
3078
3079                 chomp $line;
3080                 $line_class_num = ($line_class_num + 1) % $line_class_len;
3081
3082                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
3083                         $long_rev = $1;
3084                         $author   = $2;
3085                         $time     = $3;
3086                         $lineno   = $4;
3087                         $data     = $5;
3088                 } else {
3089                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
3090                         next;
3091                 }
3092                 $short_rev  = substr ($long_rev, 0, 8);
3093                 $age        = time () - $time;
3094                 $age_str    = age_string ($age);
3095                 $age_str    =~ s/ /&nbsp;/g;
3096                 $age_class  = age_class($age);
3097                 $author     = esc_html ($author);
3098                 $author     =~ s/ /&nbsp;/g;
3099
3100                 $data = untabify($data);
3101                 $data = esc_html ($data);
3102
3103                 print <<HTML;
3104   <tr class="$line_class[$line_class_num]">
3105     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
3106     <td class="$age_class">$age_str</td>
3107     <td>$author</td>
3108     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
3109     <td class="pre">$data</td>
3110   </tr>
3111 HTML
3112         } # while (my $line = <$fd>)
3113         print "</table>\n\n";
3114         close $fd
3115                 or print "Reading blob failed.\n";
3116         print "</div>";
3117         git_footer_html();
3118 }
3119
3120 sub git_tags {
3121         my $head = git_get_head_hash($project);
3122         git_header_html();
3123         git_print_page_nav('','', $head,undef,$head);
3124         git_print_header_div('summary', $project);
3125
3126         my @tagslist = git_get_tags_list();
3127         if (@tagslist) {
3128                 git_tags_body(\@tagslist);
3129         }
3130         git_footer_html();
3131 }
3132
3133 sub git_heads {
3134         my $head = git_get_head_hash($project);
3135         git_header_html();
3136         git_print_page_nav('','', $head,undef,$head);
3137         git_print_header_div('summary', $project);
3138
3139         my @headslist = git_get_heads_list();
3140         if (@headslist) {
3141                 git_heads_body(\@headslist, $head);
3142         }
3143         git_footer_html();
3144 }
3145
3146 sub git_blob_plain {
3147         my $expires;
3148
3149         if (!defined $hash) {
3150                 if (defined $file_name) {
3151                         my $base = $hash_base || git_get_head_hash($project);
3152                         $hash = git_get_hash_by_path($base, $file_name, "blob")
3153                                 or die_error(undef, "Error lookup file");
3154                 } else {
3155                         die_error(undef, "No file name defined");
3156                 }
3157         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3158                 # blobs defined by non-textual hash id's can be cached
3159                 $expires = "+1d";
3160         }
3161
3162         my $type = shift;
3163         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3164                 or die_error(undef, "Couldn't cat $file_name, $hash");
3165
3166         $type ||= blob_mimetype($fd, $file_name);
3167
3168         # save as filename, even when no $file_name is given
3169         my $save_as = "$hash";
3170         if (defined $file_name) {
3171                 $save_as = $file_name;
3172         } elsif ($type =~ m/^text\//) {
3173                 $save_as .= '.txt';
3174         }
3175
3176         print $cgi->header(
3177                 -type => "$type",
3178                 -expires=>$expires,
3179                 -content_disposition => 'inline; filename="' . "$save_as" . '"');
3180         undef $/;
3181         binmode STDOUT, ':raw';
3182         print <$fd>;
3183         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3184         $/ = "\n";
3185         close $fd;
3186 }
3187
3188 sub git_blob {
3189         my $expires;
3190
3191         if (!defined $hash) {
3192                 if (defined $file_name) {
3193                         my $base = $hash_base || git_get_head_hash($project);
3194                         $hash = git_get_hash_by_path($base, $file_name, "blob")
3195                                 or die_error(undef, "Error lookup file");
3196                 } else {
3197                         die_error(undef, "No file name defined");
3198                 }
3199         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3200                 # blobs defined by non-textual hash id's can be cached
3201                 $expires = "+1d";
3202         }
3203
3204         my ($have_blame) = gitweb_check_feature('blame');
3205         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3206                 or die_error(undef, "Couldn't cat $file_name, $hash");
3207         my $mimetype = blob_mimetype($fd, $file_name);
3208         if ($mimetype !~ m/^text\//) {
3209                 close $fd;
3210                 return git_blob_plain($mimetype);
3211         }
3212         git_header_html(undef, $expires);
3213         my $formats_nav = '';
3214         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3215                 if (defined $file_name) {
3216                         if ($have_blame) {
3217                                 $formats_nav .=
3218                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
3219                                                                hash=>$hash, file_name=>$file_name)},
3220                                                 "blame") .
3221                                         " | ";
3222                         }
3223                         $formats_nav .=
3224                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3225                                                        hash=>$hash, file_name=>$file_name)},
3226                                         "history") .
3227                                 " | " .
3228                                 $cgi->a({-href => href(action=>"blob_plain",
3229                                                        hash=>$hash, file_name=>$file_name)},
3230                                         "raw") .
3231                                 " | " .
3232                                 $cgi->a({-href => href(action=>"blob",
3233                                                        hash_base=>"HEAD", file_name=>$file_name)},
3234                                         "HEAD");
3235                 } else {
3236                         $formats_nav .=
3237                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
3238                 }
3239                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3240                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3241         } else {
3242                 print "<div class=\"page_nav\">\n" .
3243                       "<br/><br/></div>\n" .
3244                       "<div class=\"title\">$hash</div>\n";
3245         }
3246         git_print_page_path($file_name, "blob", $hash_base);
3247         print "<div class=\"page_body\">\n";
3248         my $nr;
3249         while (my $line = <$fd>) {
3250                 chomp $line;
3251                 $nr++;
3252                 $line = untabify($line);
3253                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
3254                        $nr, $nr, $nr, esc_html($line, -nbsp=>1);
3255         }
3256         close $fd
3257                 or print "Reading blob failed.\n";
3258         print "</div>";
3259         git_footer_html();
3260 }
3261
3262 sub git_tree {
3263         my $have_snapshot = gitweb_have_snapshot();
3264
3265         if (!defined $hash_base) {
3266                 $hash_base = "HEAD";
3267         }
3268         if (!defined $hash) {
3269                 if (defined $file_name) {
3270                         $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
3271                 } else {
3272                         $hash = $hash_base;
3273                 }
3274         }
3275         $/ = "\0";
3276         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
3277                 or die_error(undef, "Open git-ls-tree failed");
3278         my @entries = map { chomp; $_ } <$fd>;
3279         close $fd or die_error(undef, "Reading tree failed");
3280         $/ = "\n";
3281
3282         my $refs = git_get_references();
3283         my $ref = format_ref_marker($refs, $hash_base);
3284         git_header_html();
3285         my $basedir = '';
3286         my ($have_blame) = gitweb_check_feature('blame');
3287         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3288                 my @views_nav = ();
3289                 if (defined $file_name) {
3290                         push @views_nav,
3291                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3292                                                        hash=>$hash, file_name=>$file_name)},
3293                                         "history"),
3294                                 $cgi->a({-href => href(action=>"tree",
3295                                                        hash_base=>"HEAD", file_name=>$file_name)},
3296                                         "HEAD"),
3297                 }
3298                 if ($have_snapshot) {
3299                         # FIXME: Should be available when we have no hash base as well.
3300                         push @views_nav,
3301                                 $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
3302                                         "snapshot");
3303                 }
3304                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
3305                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
3306         } else {
3307                 undef $hash_base;
3308                 print "<div class=\"page_nav\">\n";
3309                 print "<br/><br/></div>\n";
3310                 print "<div class=\"title\">$hash</div>\n";
3311         }
3312         if (defined $file_name) {
3313                 $basedir = $file_name;
3314                 if ($basedir ne '' && substr($basedir, -1) ne '/') {
3315                         $basedir .= '/';
3316                 }
3317         }
3318         git_print_page_path($file_name, 'tree', $hash_base);
3319         print "<div class=\"page_body\">\n";
3320         print "<table cellspacing=\"0\">\n";
3321         my $alternate = 1;
3322         # '..' (top directory) link if possible
3323         if (defined $hash_base &&
3324             defined $file_name && $file_name =~ m![^/]+$!) {
3325                 if ($alternate) {
3326                         print "<tr class=\"dark\">\n";
3327                 } else {
3328                         print "<tr class=\"light\">\n";
3329                 }
3330                 $alternate ^= 1;
3331
3332                 my $up = $file_name;
3333                 $up =~ s!/?[^/]+$!!;
3334                 undef $up unless $up;
3335                 # based on git_print_tree_entry
3336                 print '<td class="mode">' . mode_str('040000') . "</td>\n";
3337                 print '<td class="list">';
3338                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
3339                                              file_name=>$up)},
3340                               "..");
3341                 print "</td>\n";
3342                 print "<td class=\"link\"></td>\n";
3343
3344                 print "</tr>\n";
3345         }
3346         foreach my $line (@entries) {
3347                 my %t = parse_ls_tree_line($line, -z => 1);
3348
3349                 if ($alternate) {
3350                         print "<tr class=\"dark\">\n";
3351                 } else {
3352                         print "<tr class=\"light\">\n";
3353                 }
3354                 $alternate ^= 1;
3355
3356                 git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3357
3358                 print "</tr>\n";
3359         }
3360         print "</table>\n" .
3361               "</div>";
3362         git_footer_html();
3363 }
3364
3365 sub git_snapshot {
3366         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3367         my $have_snapshot = (defined $ctype && defined $suffix);
3368         if (!$have_snapshot) {
3369                 die_error('403 Permission denied', "Permission denied");
3370         }
3371
3372         if (!defined $hash) {
3373                 $hash = git_get_head_hash($project);
3374         }
3375
3376         my $filename = basename($project) . "-$hash.tar.$suffix";
3377
3378         print $cgi->header(
3379                 -type => 'application/x-tar',
3380                 -content_encoding => $ctype,
3381                 -content_disposition => 'inline; filename="' . "$filename" . '"',
3382                 -status => '200 OK');
3383
3384         my $git = git_cmd_str();
3385         my $name = $project;
3386         $name =~ s/\047/\047\\\047\047/g;
3387         open my $fd, "-|",
3388         "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3389                 or die_error(undef, "Execute git-tar-tree failed.");
3390         binmode STDOUT, ':raw';
3391         print <$fd>;
3392         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3393         close $fd;
3394
3395 }
3396
3397 sub git_log {
3398         my $head = git_get_head_hash($project);
3399         if (!defined $hash) {
3400                 $hash = $head;
3401         }
3402         if (!defined $page) {
3403                 $page = 0;
3404         }
3405         my $refs = git_get_references();
3406
3407         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3408         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
3409                 or die_error(undef, "Open git-rev-list failed");
3410         my @revlist = map { chomp; $_ } <$fd>;
3411         close $fd;
3412
3413         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
3414
3415         git_header_html();
3416         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3417
3418         if (!@revlist) {
3419                 my %co = parse_commit($hash);
3420
3421                 git_print_header_div('summary', $project);
3422                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3423         }
3424         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
3425                 my $commit = $revlist[$i];
3426                 my $ref = format_ref_marker($refs, $commit);
3427                 my %co = parse_commit($commit);
3428                 next if !%co;
3429                 my %ad = parse_date($co{'author_epoch'});
3430                 git_print_header_div('commit',
3431                                "<span class=\"age\">$co{'age_string'}</span>" .
3432                                esc_html($co{'title'}) . $ref,
3433                                $commit);
3434                 print "<div class=\"title_text\">\n" .
3435                       "<div class=\"log_link\">\n" .
3436                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3437                       " | " .
3438                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3439                       " | " .
3440                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3441                       "<br/>\n" .
3442                       "</div>\n" .
3443                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3444                       "</div>\n";
3445
3446                 print "<div class=\"log_body\">\n";
3447                 git_print_log($co{'comment'}, -final_empty_line=> 1);
3448                 print "</div>\n";
3449         }
3450         git_footer_html();
3451 }
3452
3453 sub git_commit {
3454         $hash ||= $hash_base || "HEAD";
3455         my %co = parse_commit($hash);
3456         if (!%co) {
3457                 die_error(undef, "Unknown commit object");
3458         }
3459         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3460         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3461
3462         my $parent = $co{'parent'};
3463         if (!defined $parent) {
3464                 $parent = "--root";
3465         }
3466         open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
3467                 @diff_opts, $parent, $hash, "--"
3468                 or die_error(undef, "Open git-diff-tree failed");
3469         my @difftree = map { chomp; $_ } <$fd>;
3470         close $fd or die_error(undef, "Reading git-diff-tree failed");
3471
3472         # non-textual hash id's can be cached
3473         my $expires;
3474         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3475                 $expires = "+1d";
3476         }
3477         my $refs = git_get_references();
3478         my $ref = format_ref_marker($refs, $co{'id'});
3479
3480         my $have_snapshot = gitweb_have_snapshot();
3481
3482         my @views_nav = ();
3483         if (defined $file_name && defined $co{'parent'}) {
3484                 push @views_nav,
3485                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3486                                 "blame");
3487         }
3488         git_header_html(undef, $expires);
3489         git_print_page_nav('commit', '',
3490                            $hash, $co{'tree'}, $hash,
3491                            join (' | ', @views_nav));
3492
3493         if (defined $co{'parent'}) {
3494                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3495         } else {
3496                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3497         }
3498         print "<div class=\"title_text\">\n" .
3499               "<table cellspacing=\"0\">\n";
3500         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3501               "<tr>" .
3502               "<td></td><td> $ad{'rfc2822'}";
3503         if ($ad{'hour_local'} < 6) {
3504                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3505                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3506         } else {
3507                 printf(" (%02d:%02d %s)",
3508                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3509         }
3510         print "</td>" .
3511               "</tr>\n";
3512         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3513         print "<tr><td></td><td> $cd{'rfc2822'}" .
3514               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3515               "</td></tr>\n";
3516         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3517         print "<tr>" .
3518               "<td>tree</td>" .
3519               "<td class=\"sha1\">" .
3520               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3521                        class => "list"}, $co{'tree'}) .
3522               "</td>" .
3523               "<td class=\"link\">" .
3524               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3525                       "tree");
3526         if ($have_snapshot) {
3527                 print " | " .
3528                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3529         }
3530         print "</td>" .
3531               "</tr>\n";
3532         my $parents = $co{'parents'};
3533         foreach my $par (@$parents) {
3534                 print "<tr>" .
3535                       "<td>parent</td>" .
3536                       "<td class=\"sha1\">" .
3537                       $cgi->a({-href => href(action=>"commit", hash=>$par),
3538                                class => "list"}, $par) .
3539                       "</td>" .
3540                       "<td class=\"link\">" .
3541                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3542                       " | " .
3543                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3544                       "</td>" .
3545                       "</tr>\n";
3546         }
3547         print "</table>".
3548               "</div>\n";
3549
3550         print "<div class=\"page_body\">\n";
3551         git_print_log($co{'comment'});
3552         print "</div>\n";
3553
3554         git_difftree_body(\@difftree, $hash, $parent);
3555
3556         git_footer_html();
3557 }
3558
3559 sub git_blobdiff {
3560         my $format = shift || 'html';
3561
3562         my $fd;
3563         my @difftree;
3564         my %diffinfo;
3565         my $expires;
3566
3567         # preparing $fd and %diffinfo for git_patchset_body
3568         # new style URI
3569         if (defined $hash_base && defined $hash_parent_base) {
3570                 if (defined $file_name) {
3571                         # read raw output
3572                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3573                                 $hash_parent_base, $hash_base,
3574                                 "--", $file_name
3575                                 or die_error(undef, "Open git-diff-tree failed");
3576                         @difftree = map { chomp; $_ } <$fd>;
3577                         close $fd
3578                                 or die_error(undef, "Reading git-diff-tree failed");
3579                         @difftree
3580                                 or die_error('404 Not Found', "Blob diff not found");
3581
3582                 } elsif (defined $hash &&
3583                          $hash =~ /[0-9a-fA-F]{40}/) {
3584                         # try to find filename from $hash
3585
3586                         # read filtered raw output
3587                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3588                                 $hash_parent_base, $hash_base, "--"
3589                                 or die_error(undef, "Open git-diff-tree failed");
3590                         @difftree =
3591                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3592                                 # $hash == to_id
3593                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3594                                 map { chomp; $_ } <$fd>;
3595                         close $fd
3596                                 or die_error(undef, "Reading git-diff-tree failed");
3597                         @difftree
3598                                 or die_error('404 Not Found', "Blob diff not found");
3599
3600                 } else {
3601                         die_error('404 Not Found', "Missing one of the blob diff parameters");
3602                 }
3603
3604                 if (@difftree > 1) {
3605                         die_error('404 Not Found', "Ambiguous blob diff specification");
3606                 }
3607
3608                 %diffinfo = parse_difftree_raw_line($difftree[0]);
3609                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3610                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3611
3612                 $hash_parent ||= $diffinfo{'from_id'};
3613                 $hash        ||= $diffinfo{'to_id'};
3614
3615                 # non-textual hash id's can be cached
3616                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3617                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3618                         $expires = '+1d';
3619                 }
3620
3621                 # open patch output
3622                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3623                         '-p', $hash_parent_base, $hash_base,
3624                         "--", $file_name
3625                         or die_error(undef, "Open git-diff-tree failed");
3626         }
3627
3628         # old/legacy style URI
3629         if (!%diffinfo && # if new style URI failed
3630             defined $hash && defined $hash_parent) {
3631                 # fake git-diff-tree raw output
3632                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3633                 $diffinfo{'from_id'} = $hash_parent;
3634                 $diffinfo{'to_id'}   = $hash;
3635                 if (defined $file_name) {
3636                         if (defined $file_parent) {
3637                                 $diffinfo{'status'} = '2';
3638                                 $diffinfo{'from_file'} = $file_parent;
3639                                 $diffinfo{'to_file'}   = $file_name;
3640                         } else { # assume not renamed
3641                                 $diffinfo{'status'} = '1';
3642                                 $diffinfo{'from_file'} = $file_name;
3643                                 $diffinfo{'to_file'}   = $file_name;
3644                         }
3645                 } else { # no filename given
3646                         $diffinfo{'status'} = '2';
3647                         $diffinfo{'from_file'} = $hash_parent;
3648                         $diffinfo{'to_file'}   = $hash;
3649                 }
3650
3651                 # non-textual hash id's can be cached
3652                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3653                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3654                         $expires = '+1d';
3655                 }
3656
3657                 # open patch output
3658                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts,
3659                         $hash_parent, $hash, "--"
3660                         or die_error(undef, "Open git-diff failed");
3661         } else  {
3662                 die_error('404 Not Found', "Missing one of the blob diff parameters")
3663                         unless %diffinfo;
3664         }
3665
3666         # header
3667         if ($format eq 'html') {
3668                 my $formats_nav =
3669                         $cgi->a({-href => href(action=>"blobdiff_plain",
3670                                                hash=>$hash, hash_parent=>$hash_parent,
3671                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3672                                                file_name=>$file_name, file_parent=>$file_parent)},
3673                                 "raw");
3674                 git_header_html(undef, $expires);
3675                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3676                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3677                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3678                 } else {
3679                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3680                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3681                 }
3682                 if (defined $file_name) {
3683                         git_print_page_path($file_name, "blob", $hash_base);
3684                 } else {
3685                         print "<div class=\"page_path\"></div>\n";
3686                 }
3687
3688         } elsif ($format eq 'plain') {
3689                 print $cgi->header(
3690                         -type => 'text/plain',
3691                         -charset => 'utf-8',
3692                         -expires => $expires,
3693                         -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3694
3695                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3696
3697         } else {
3698                 die_error(undef, "Unknown blobdiff format");
3699         }
3700
3701         # patch
3702         if ($format eq 'html') {
3703                 print "<div class=\"page_body\">\n";
3704
3705                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3706                 close $fd;
3707
3708                 print "</div>\n"; # class="page_body"
3709                 git_footer_html();
3710
3711         } else {
3712                 while (my $line = <$fd>) {
3713                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
3714                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
3715
3716                         print $line;
3717
3718                         last if $line =~ m!^\+\+\+!;
3719                 }
3720                 local $/ = undef;
3721                 print <$fd>;
3722                 close $fd;
3723         }
3724 }
3725
3726 sub git_blobdiff_plain {
3727         git_blobdiff('plain');
3728 }
3729
3730 sub git_commitdiff {
3731         my $format = shift || 'html';
3732         $hash ||= $hash_base || "HEAD";
3733         my %co = parse_commit($hash);
3734         if (!%co) {
3735                 die_error(undef, "Unknown commit object");
3736         }
3737
3738         # we need to prepare $formats_nav before any parameter munging
3739         my $formats_nav;
3740         if ($format eq 'html') {
3741                 $formats_nav =
3742                         $cgi->a({-href => href(action=>"commitdiff_plain",
3743                                                hash=>$hash, hash_parent=>$hash_parent)},
3744                                 "raw");
3745
3746                 if (defined $hash_parent) {
3747                         # commitdiff with two commits given
3748                         my $hash_parent_short = $hash_parent;
3749                         if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3750                                 $hash_parent_short = substr($hash_parent, 0, 7);
3751                         }
3752                         $formats_nav .=
3753                                 ' (from: ' .
3754                                 $cgi->a({-href => href(action=>"commitdiff",
3755                                                        hash=>$hash_parent)},
3756                                         esc_html($hash_parent_short)) .
3757                                 ')';
3758                 } elsif (!$co{'parent'}) {
3759                         # --root commitdiff
3760                         $formats_nav .= ' (initial)';
3761                 } elsif (scalar @{$co{'parents'}} == 1) {
3762                         # single parent commit
3763                         $formats_nav .=
3764                                 ' (parent: ' .
3765                                 $cgi->a({-href => href(action=>"commitdiff",
3766                                                        hash=>$co{'parent'})},
3767                                         esc_html(substr($co{'parent'}, 0, 7))) .
3768                                 ')';
3769                 } else {
3770                         # merge commit
3771                         $formats_nav .=
3772                                 ' (merge: ' .
3773                                 join(' ', map {
3774                                         $cgi->a({-href => href(action=>"commitdiff",
3775                                                                hash=>$_)},
3776                                                 esc_html(substr($_, 0, 7)));
3777                                 } @{$co{'parents'}} ) .
3778                                 ')';
3779                 }
3780         }
3781
3782         if (!defined $hash_parent) {
3783                 $hash_parent = $co{'parent'} || '--root';
3784         }
3785
3786         # read commitdiff
3787         my $fd;
3788         my @difftree;
3789         if ($format eq 'html') {
3790                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3791                         "--no-commit-id", "--patch-with-raw", "--full-index",
3792                         $hash_parent, $hash, "--"
3793                         or die_error(undef, "Open git-diff-tree failed");
3794
3795                 while (my $line = <$fd>) {
3796                         chomp $line;
3797                         # empty line ends raw part of diff-tree output
3798                         last unless $line;
3799                         push @difftree, $line;
3800                 }
3801
3802         } elsif ($format eq 'plain') {
3803                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3804                         '-p', $hash_parent, $hash, "--"
3805                         or die_error(undef, "Open git-diff-tree failed");
3806
3807         } else {
3808                 die_error(undef, "Unknown commitdiff format");
3809         }
3810
3811         # non-textual hash id's can be cached
3812         my $expires;
3813         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3814                 $expires = "+1d";
3815         }
3816
3817         # write commit message
3818         if ($format eq 'html') {
3819                 my $refs = git_get_references();
3820                 my $ref = format_ref_marker($refs, $co{'id'});
3821
3822                 git_header_html(undef, $expires);
3823                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3824                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3825                 git_print_authorship(\%co);
3826                 print "<div class=\"page_body\">\n";
3827                 if (@{$co{'comment'}} > 1) {
3828                         print "<div class=\"log\">\n";
3829                         git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
3830                         print "</div>\n"; # class="log"
3831                 }
3832
3833         } elsif ($format eq 'plain') {
3834                 my $refs = git_get_references("tags");
3835                 my $tagname = git_get_rev_name_tags($hash);
3836                 my $filename = basename($project) . "-$hash.patch";
3837
3838                 print $cgi->header(
3839                         -type => 'text/plain',
3840                         -charset => 'utf-8',
3841                         -expires => $expires,
3842                         -content_disposition => 'inline; filename="' . "$filename" . '"');
3843                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3844                 print <<TEXT;
3845 From: $co{'author'}
3846 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3847 Subject: $co{'title'}
3848 TEXT
3849                 print "X-Git-Tag: $tagname\n" if $tagname;
3850                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3851
3852                 foreach my $line (@{$co{'comment'}}) {
3853                         print "$line\n";
3854                 }
3855                 print "---\n\n";
3856         }
3857
3858         # write patch
3859         if ($format eq 'html') {
3860                 git_difftree_body(\@difftree, $hash, $hash_parent);
3861                 print "<br/>\n";
3862
3863                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3864                 close $fd;
3865                 print "</div>\n"; # class="page_body"
3866                 git_footer_html();
3867
3868         } elsif ($format eq 'plain') {
3869                 local $/ = undef;
3870                 print <$fd>;
3871                 close $fd
3872                         or print "Reading git-diff-tree failed\n";
3873         }
3874 }
3875
3876 sub git_commitdiff_plain {
3877         git_commitdiff('plain');
3878 }
3879
3880 sub git_history {
3881         if (!defined $hash_base) {
3882                 $hash_base = git_get_head_hash($project);
3883         }
3884         if (!defined $page) {
3885                 $page = 0;
3886         }
3887         my $ftype;
3888         my %co = parse_commit($hash_base);
3889         if (!%co) {
3890                 die_error(undef, "Unknown commit object");
3891         }
3892
3893         my $refs = git_get_references();
3894         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3895
3896         if (!defined $hash && defined $file_name) {
3897                 $hash = git_get_hash_by_path($hash_base, $file_name);
3898         }
3899         if (defined $hash) {
3900                 $ftype = git_get_type($hash);
3901         }
3902
3903         open my $fd, "-|",
3904                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3905                         or die_error(undef, "Open git-rev-list-failed");
3906         my @revlist = map { chomp; $_ } <$fd>;
3907         close $fd
3908                 or die_error(undef, "Reading git-rev-list failed");
3909
3910         my $paging_nav = '';
3911         if ($page > 0) {
3912                 $paging_nav .=
3913                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3914                                                file_name=>$file_name)},
3915                                 "first");
3916                 $paging_nav .= " &sdot; " .
3917                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3918                                                file_name=>$file_name, page=>$page-1),
3919                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3920         } else {
3921                 $paging_nav .= "first";
3922                 $paging_nav .= " &sdot; prev";
3923         }
3924         if ($#revlist >= (100 * ($page+1)-1)) {
3925                 $paging_nav .= " &sdot; " .
3926                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3927                                                file_name=>$file_name, page=>$page+1),
3928                                  -accesskey => "n", -title => "Alt-n"}, "next");
3929         } else {
3930                 $paging_nav .= " &sdot; next";
3931         }
3932         my $next_link = '';
3933         if ($#revlist >= (100 * ($page+1)-1)) {
3934                 $next_link =
3935                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3936                                                file_name=>$file_name, page=>$page+1),
3937                                  -title => "Alt-n"}, "next");
3938         }
3939
3940         git_header_html();
3941         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3942         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3943         git_print_page_path($file_name, $ftype, $hash_base);
3944
3945         git_history_body(\@revlist, ($page * 100), $#revlist,
3946                          $refs, $hash_base, $ftype, $next_link);
3947
3948         git_footer_html();
3949 }
3950
3951 sub git_search {
3952         if (!defined $searchtext) {
3953                 die_error(undef, "Text field empty");
3954         }
3955         if (!defined $hash) {
3956                 $hash = git_get_head_hash($project);
3957         }
3958         my %co = parse_commit($hash);
3959         if (!%co) {
3960                 die_error(undef, "Unknown commit object");
3961         }
3962
3963         $searchtype ||= 'commit';
3964         if ($searchtype eq 'pickaxe') {
3965                 # pickaxe may take all resources of your box and run for several minutes
3966                 # with every query - so decide by yourself how public you make this feature
3967                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3968                 if (!$have_pickaxe) {
3969                         die_error('403 Permission denied', "Permission denied");
3970                 }
3971         }
3972
3973         git_header_html();
3974         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3975         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3976
3977         print "<table cellspacing=\"0\">\n";
3978         my $alternate = 1;
3979         if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
3980                 $/ = "\0";
3981                 open my $fd, "-|", git_cmd(), "rev-list",
3982                         "--header", "--parents", $hash, "--"
3983                         or next;
3984                 while (my $commit_text = <$fd>) {
3985                         if (!grep m/$searchtext/i, $commit_text) {
3986                                 next;
3987                         }
3988                         if ($searchtype eq 'author' && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3989                                 next;
3990                         }
3991                         if ($searchtype eq 'committer' && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3992                                 next;
3993                         }
3994                         my @commit_lines = split "\n", $commit_text;
3995                         my %co = parse_commit(undef, \@commit_lines);
3996                         if (!%co) {
3997                                 next;
3998                         }
3999                         if ($alternate) {
4000                                 print "<tr class=\"dark\">\n";
4001                         } else {
4002                                 print "<tr class=\"light\">\n";
4003                         }
4004                         $alternate ^= 1;
4005                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
4006                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
4007                               "<td>" .
4008                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
4009                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
4010                         my $comment = $co{'comment'};
4011                         foreach my $line (@$comment) {
4012                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
4013                                         my $lead = esc_html($1) || "";
4014                                         $lead = chop_str($lead, 30, 10);
4015                                         my $match = esc_html($2) || "";
4016                                         my $trail = esc_html($3) || "";
4017                                         $trail = chop_str($trail, 30, 10);
4018                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
4019                                         print chop_str($text, 80, 5) . "<br/>\n";
4020                                 }
4021                         }
4022                         print "</td>\n" .
4023                               "<td class=\"link\">" .
4024                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4025                               " | " .
4026                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4027                         print "</td>\n" .
4028                               "</tr>\n";
4029                 }
4030                 close $fd;
4031         }
4032
4033         if ($searchtype eq 'pickaxe') {
4034                 $/ = "\n";
4035                 my $git_command = git_cmd_str();
4036                 open my $fd, "-|", "$git_command rev-list $hash | " .
4037                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
4038                 undef %co;
4039                 my @files;
4040                 while (my $line = <$fd>) {
4041                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
4042                                 my %set;
4043                                 $set{'file'} = $6;
4044                                 $set{'from_id'} = $3;
4045                                 $set{'to_id'} = $4;
4046                                 $set{'id'} = $set{'to_id'};
4047                                 if ($set{'id'} =~ m/0{40}/) {
4048                                         $set{'id'} = $set{'from_id'};
4049                                 }
4050                                 if ($set{'id'} =~ m/0{40}/) {
4051                                         next;
4052                                 }
4053                                 push @files, \%set;
4054                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
4055                                 if (%co) {
4056                                         if ($alternate) {
4057                                                 print "<tr class=\"dark\">\n";
4058                                         } else {
4059                                                 print "<tr class=\"light\">\n";
4060                                         }
4061                                         $alternate ^= 1;
4062                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
4063                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
4064                                               "<td>" .
4065                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
4066                                                       -class => "list subject"},
4067                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
4068                                         while (my $setref = shift @files) {
4069                                                 my %set = %$setref;
4070                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
4071                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
4072                                                               -class => "list"},
4073                                                               "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
4074                                                       "<br/>\n";
4075                                         }
4076                                         print "</td>\n" .
4077                                               "<td class=\"link\">" .
4078                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4079                                               " | " .
4080                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4081                                         print "</td>\n" .
4082                                               "</tr>\n";
4083                                 }
4084                                 %co = parse_commit($1);
4085                         }
4086                 }
4087                 close $fd;
4088         }
4089         print "</table>\n";
4090         git_footer_html();
4091 }
4092
4093 sub git_search_help {
4094         git_header_html();
4095         git_print_page_nav('','', $hash,$hash,$hash);
4096         print <<EOT;
4097 <dl>
4098 <dt><b>commit</b></dt>
4099 <dd>The commit messages and authorship information will be scanned for the given string.</dd>
4100 <dt><b>author</b></dt>
4101 <dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
4102 <dt><b>committer</b></dt>
4103 <dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
4104 EOT
4105         my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4106         if ($have_pickaxe) {
4107                 print <<EOT;
4108 <dt><b>pickaxe</b></dt>
4109 <dd>All commits that caused the string to appear or disappear from any file (changes that
4110 added, removed or "modified" the string) will be listed. This search can take a while and
4111 takes a lot of strain on the server, so please use it wisely.</dd>
4112 EOT
4113         }
4114         print "</dl>\n";
4115         git_footer_html();
4116 }
4117
4118 sub git_shortlog {
4119         my $head = git_get_head_hash($project);
4120         if (!defined $hash) {
4121                 $hash = $head;
4122         }
4123         if (!defined $page) {
4124                 $page = 0;
4125         }
4126         my $refs = git_get_references();
4127
4128         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
4129         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
4130                 or die_error(undef, "Open git-rev-list failed");
4131         my @revlist = map { chomp; $_ } <$fd>;
4132         close $fd;
4133
4134         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
4135         my $next_link = '';
4136         if ($#revlist >= (100 * ($page+1)-1)) {
4137                 $next_link =
4138                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
4139                                  -title => "Alt-n"}, "next");
4140         }
4141
4142
4143         git_header_html();
4144         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
4145         git_print_header_div('summary', $project);
4146
4147         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
4148
4149         git_footer_html();
4150 }
4151
4152 ## ......................................................................
4153 ## feeds (RSS, OPML)
4154
4155 sub git_rss {
4156         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
4157         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150",
4158                 git_get_head_hash($project), "--"
4159                 or die_error(undef, "Open git-rev-list failed");
4160         my @revlist = map { chomp; $_ } <$fd>;
4161         close $fd or die_error(undef, "Reading git-rev-list failed");
4162         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4163         print <<XML;
4164 <?xml version="1.0" encoding="utf-8"?>
4165 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
4166 <channel>
4167 <title>$project $my_uri $my_url</title>
4168 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
4169 <description>$project log</description>
4170 <language>en</language>
4171 XML
4172
4173         for (my $i = 0; $i <= $#revlist; $i++) {
4174                 my $commit = $revlist[$i];
4175                 my %co = parse_commit($commit);
4176                 # we read 150, we always show 30 and the ones more recent than 48 hours
4177                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
4178                         last;
4179                 }
4180                 my %cd = parse_date($co{'committer_epoch'});
4181                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4182                         $co{'parent'}, $co{'id'}, "--"
4183                         or next;
4184                 my @difftree = map { chomp; $_ } <$fd>;
4185                 close $fd
4186                         or next;
4187                 print "<item>\n" .
4188                       "<title>" .
4189                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
4190                       "</title>\n" .
4191                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
4192                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
4193                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
4194                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
4195                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
4196                       "<content:encoded>" .
4197                       "<![CDATA[\n";
4198                 my $comment = $co{'comment'};
4199                 foreach my $line (@$comment) {
4200                         $line = to_utf8($line);
4201                         print "$line<br/>\n";
4202                 }
4203                 print "<br/>\n";
4204                 foreach my $line (@difftree) {
4205                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
4206                                 next;
4207                         }
4208                         my $file = esc_path(unquote($7));
4209                         $file = to_utf8($file);
4210                         print "$file<br/>\n";
4211                 }
4212                 print "]]>\n" .
4213                       "</content:encoded>\n" .
4214                       "</item>\n";
4215         }
4216         print "</channel></rss>";
4217 }
4218
4219 sub git_opml {
4220         my @list = git_get_projects_list();
4221
4222         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4223         print <<XML;
4224 <?xml version="1.0" encoding="utf-8"?>
4225 <opml version="1.0">
4226 <head>
4227   <title>$site_name OPML Export</title>
4228 </head>
4229 <body>
4230 <outline text="git RSS feeds">
4231 XML
4232
4233         foreach my $pr (@list) {
4234                 my %proj = %$pr;
4235                 my $head = git_get_head_hash($proj{'path'});
4236                 if (!defined $head) {
4237                         next;
4238                 }
4239                 $git_dir = "$projectroot/$proj{'path'}";
4240                 my %co = parse_commit($head);
4241                 if (!%co) {
4242                         next;
4243                 }
4244
4245                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
4246                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
4247                 my $html = "$my_url?p=$proj{'path'};a=summary";
4248                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
4249         }
4250         print <<XML;
4251 </outline>
4252 </body>
4253 </opml>
4254 XML
4255 }