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