git.oblomov.eu Git - git/blob - 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 our $stylesheet;
  55 # default is not to define style sheet, but it can be overwritten later
  56 undef $stylesheet;
  57
  58 # URI of default stylesheet
  59 our $stylesheet = "++GITWEB_CSS++";
  60 # URI of GIT logo (72x27 size)
  61 our $logo = "++GITWEB_LOGO++";
  62 # URI of GIT favicon, assumed to be image/png type
  63 our $favicon = "++GITWEB_FAVICON++";
  64
  65 # URI and label (title) of GIT logo link
  66 #our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  67 #our $logo_label = "git documentation";
  68 our $logo_url = "http://git.or.cz/";
  69 our $logo_label = "git homepage";
  70
  71 # source of projects list
  72 our $projects_list = "++GITWEB_LIST++";
  73
  74 # show repository only if this file exists
  75 # (only effective if this variable evaluates to true)
  76 our $export_ok = "++GITWEB_EXPORT_OK++";
  77
  78 # only allow viewing of repositories also shown on the overview page
  79 our $strict_export = "++GITWEB_STRICT_EXPORT++";
  80
  81 # list of git base URLs used for URL to where fetch project from,
  82 # i.e. full URL is "$git_base_url/$project"
  83 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  84
  85 # default blob_plain mimetype and default charset for text/plain blob
  86 our $default_blob_plain_mimetype = 'text/plain';
  87 our $default_text_plain_charset  = undef;
  88
  89 # file to use for guessing MIME types before trying /etc/mime.types
  90 # (relative to the current git repository)
  91 our $mimetypes_file = undef;
  92
  93 # You define site-wide feature defaults here; override them with
  94 # $GITWEB_CONFIG as necessary.
  95 our %feature = (
  96         # feature => {
  97         #       'sub' => feature-sub (subroutine),
  98         #       'override' => allow-override (boolean),
  99         #       'default' => [ default options...] (array reference)}
 100         #
 101         # if feature is overridable (it means that allow-override has true value,
 102         # then feature-sub will be called with default options as parameters;
 103         # return value of feature-sub indicates if to enable specified feature
 104         #
 105         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 106
 107         # Enable the 'blame' blob view, showing the last commit that modified
 108         # each line in the file. This can be very CPU-intensive.
 109
 110         # To enable system wide have in $GITWEB_CONFIG
 111         # $feature{'blame'}{'default'} = [1];
 112         # To have project specific config enable override in $GITWEB_CONFIG
 113         # $feature{'blame'}{'override'} = 1;
 114         # and in project config gitweb.blame = 0|1;
 115         'blame' => {
 116                 'sub' => \&feature_blame,
 117                 'override' => 0,
 118                 'default' => [0]},
 119
 120         # Enable the 'snapshot' link, providing a compressed tarball of any
 121         # tree. This can potentially generate high traffic if you have large
 122         # project.
 123
 124         # To disable system wide have in $GITWEB_CONFIG
 125         # $feature{'snapshot'}{'default'} = [undef];
 126         # To have project specific config enable override in $GITWEB_CONFIG
 127         # $feature{'blame'}{'override'} = 1;
 128         # and in project config gitweb.snapshot = none|gzip|bzip2;
 129         'snapshot' => {
 130                 'sub' => \&feature_snapshot,
 131                 'override' => 0,
 132                 #         => [content-encoding, suffix, program]
 133                 'default' => ['x-gzip', 'gz', 'gzip']},
 134
 135         # Enable the pickaxe search, which will list the commits that modified
 136         # a given string in a file. This can be practical and quite faster
 137         # alternative to 'blame', but still potentially CPU-intensive.
 138
 139         # To enable system wide have in $GITWEB_CONFIG
 140         # $feature{'pickaxe'}{'default'} = [1];
 141         # To have project specific config enable override in $GITWEB_CONFIG
 142         # $feature{'pickaxe'}{'override'} = 1;
 143         # and in project config gitweb.pickaxe = 0|1;
 144         'pickaxe' => {
 145                 'sub' => \&feature_pickaxe,
 146                 'override' => 0,
 147                 'default' => [1]},
 148
 149         # Make gitweb use an alternative format of the URLs which can be
 150         # more readable and natural-looking: project name is embedded
 151         # directly in the path and the query string contains other
 152         # auxiliary information. All gitweb installations recognize
 153         # URL in either format; this configures in which formats gitweb
 154         # generates links.
 155
 156         # To enable system wide have in $GITWEB_CONFIG
 157         # $feature{'pathinfo'}{'default'} = [1];
 158         # Project specific override is not supported.
 159
 160         # Note that you will need to change the default location of CSS,
 161         # favicon, logo and possibly other files to an absolute URL. Also,
 162         # if gitweb.cgi serves as your indexfile, you will need to force
 163         # $my_uri to contain the script name in your $GITWEB_CONFIG.
 164         'pathinfo' => {
 165                 'override' => 0,
 166                 'default' => [0]},
 167 );
 168
 169 sub gitweb_check_feature {
 170         my ($name) = @_;
 171         return unless exists $feature{$name};
 172         my ($sub, $override, @defaults) = (
 173                 $feature{$name}{'sub'},
 174                 $feature{$name}{'override'},
 175                 @{$feature{$name}{'default'}});
 176         if (!$override) { return @defaults; }
 177         if (!defined $sub) {
 178                 warn "feature $name is not overrideable";
 179                 return @defaults;
 180         }
 181         return $sub->(@defaults);
 182 }
 183
 184 sub feature_blame {
 185         my ($val) = git_get_project_config('blame', '--bool');
 186
 187         if ($val eq 'true') {
 188                 return 1;
 189         } elsif ($val eq 'false') {
 190                 return 0;
 191         }
 192
 193         return $_[0];
 194 }
 195
 196 sub feature_snapshot {
 197         my ($ctype, $suffix, $command) = @_;
 198
 199         my ($val) = git_get_project_config('snapshot');
 200
 201         if ($val eq 'gzip') {
 202                 return ('x-gzip', 'gz', 'gzip');
 203         } elsif ($val eq 'bzip2') {
 204                 return ('x-bzip2', 'bz2', 'bzip2');
 205         } elsif ($val eq 'none') {
 206                 return ();
 207         }
 208
 209         return ($ctype, $suffix, $command);
 210 }
 211
 212 sub gitweb_have_snapshot {
 213         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 214         my $have_snapshot = (defined $ctype && defined $suffix);
 215
 216         return $have_snapshot;
 217 }
 218
 219 sub feature_pickaxe {
 220         my ($val) = git_get_project_config('pickaxe', '--bool');
 221
 222         if ($val eq 'true') {
 223                 return (1);
 224         } elsif ($val eq 'false') {
 225                 return (0);
 226         }
 227
 228         return ($_[0]);
 229 }
 230
 231 # checking HEAD file with -e is fragile if the repository was
 232 # initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 233 # and then pruned.
 234 sub check_head_link {
 235         my ($dir) = @_;
 236         my $headfile = "$dir/HEAD";
 237         return ((-e $headfile) ||
 238                 (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 239 }
 240
 241 sub check_export_ok {
 242         my ($dir) = @_;
 243         return (check_head_link($dir) &&
 244                 (!$export_ok || -e "$dir/$export_ok"));
 245 }
 246
 247 # rename detection options for git-diff and git-diff-tree
 248 # - default is '-M', with the cost proportional to
 249 #   (number of removed files) * (number of new files).
 250 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 251 #   (number of changed files + number of removed files) * (number of new files)
 252 # - even more costly is '-C', '--find-copies-harder' with cost
 253 #   (number of files in the original tree) * (number of new files)
 254 # - one might want to include '-B' option, e.g. '-B', '-M'
 255 our @diff_opts = ('-M'); # taken from git_commit
 256
 257 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 258 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 259
 260 # version of the core git binary
 261 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 262
 263 $projects_list ||= $projectroot;
 264
 265 # ======================================================================
 266 # input validation and dispatch
 267 our $action = $cgi->param('a');
 268 if (defined $action) {
 269         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 270                 die_error(undef, "Invalid action parameter");
 271         }
 272 }
 273
 274 # parameters which are pathnames
 275 our $project = $cgi->param('p');
 276 if (defined $project) {
 277         if (!validate_pathname($project) ||
 278             !(-d "$projectroot/$project") ||
 279             !check_head_link("$projectroot/$project") ||
 280             ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 281             ($strict_export && !project_in_list($project))) {
 282                 undef $project;
 283                 die_error(undef, "No such project");
 284         }
 285 }
 286
 287 our $file_name = $cgi->param('f');
 288 if (defined $file_name) {
 289         if (!validate_pathname($file_name)) {
 290                 die_error(undef, "Invalid file parameter");
 291         }
 292 }
 293
 294 our $file_parent = $cgi->param('fp');
 295 if (defined $file_parent) {
 296         if (!validate_pathname($file_parent)) {
 297                 die_error(undef, "Invalid file parent parameter");
 298         }
 299 }
 300
 301 # parameters which are refnames
 302 our $hash = $cgi->param('h');
 303 if (defined $hash) {
 304         if (!validate_refname($hash)) {
 305                 die_error(undef, "Invalid hash parameter");
 306         }
 307 }
 308
 309 our $hash_parent = $cgi->param('hp');
 310 if (defined $hash_parent) {
 311         if (!validate_refname($hash_parent)) {
 312                 die_error(undef, "Invalid hash parent parameter");
 313         }
 314 }
 315
 316 our $hash_base = $cgi->param('hb');
 317 if (defined $hash_base) {
 318         if (!validate_refname($hash_base)) {
 319                 die_error(undef, "Invalid hash base parameter");
 320         }
 321 }
 322
 323 our $hash_parent_base = $cgi->param('hpb');
 324 if (defined $hash_parent_base) {
 325         if (!validate_refname($hash_parent_base)) {
 326                 die_error(undef, "Invalid hash parent base parameter");
 327         }
 328 }
 329
 330 # other parameters
 331 our $page = $cgi->param('pg');
 332 if (defined $page) {
 333         if ($page =~ m/[^0-9]/) {
 334                 die_error(undef, "Invalid page parameter");
 335         }
 336 }
 337
 338 our $searchtext = $cgi->param('s');
 339 if (defined $searchtext) {
 340         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 341                 die_error(undef, "Invalid search parameter");
 342         }
 343         $searchtext = quotemeta $searchtext;
 344 }
 345
 346 our $searchtype = $cgi->param('st');
 347 if (defined $searchtype) {
 348         if ($searchtype =~ m/[^a-z]/) {
 349                 die_error(undef, "Invalid searchtype parameter");
 350         }
 351 }
 352
 353 # now read PATH_INFO and use it as alternative to parameters
 354 sub evaluate_path_info {
 355         return if defined $project;
 356         my $path_info = $ENV{"PATH_INFO"};
 357         return if !$path_info;
 358         $path_info =~ s,^/+,,;
 359         return if !$path_info;
 360         # find which part of PATH_INFO is project
 361         $project = $path_info;
 362         $project =~ s,/+$,,;
 363         while ($project && !check_head_link("$projectroot/$project")) {
 364                 $project =~ s,/*[^/]*$,,;
 365         }
 366         # validate project
 367         $project = validate_pathname($project);
 368         if (!$project ||
 369             ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 370             ($strict_export && !project_in_list($project))) {
 371                 undef $project;
 372                 return;
 373         }
 374         # do not change any parameters if an action is given using the query string
 375         return if $action;
 376         $path_info =~ s,^$project/*,,;
 377         my ($refname, $pathname) = split(/:/, $path_info, 2);
 378         if (defined $pathname) {
 379                 # we got "project.git/branch:filename" or "project.git/branch:dir/"
 380                 # we could use git_get_type(branch:pathname), but it needs $git_dir
 381                 $pathname =~ s,^/+,,;
 382                 if (!$pathname || substr($pathname, -1) eq "/") {
 383                         $action  ||= "tree";
 384                         $pathname =~ s,/$,,;
 385                 } else {
 386                         $action  ||= "blob_plain";
 387                 }
 388                 $hash_base ||= validate_refname($refname);
 389                 $file_name ||= validate_pathname($pathname);
 390         } elsif (defined $refname) {
 391                 # we got "project.git/branch"
 392                 $action ||= "shortlog";
 393                 $hash   ||= validate_refname($refname);
 394         }
 395 }
 396 evaluate_path_info();
 397
 398 # path to the current git repository
 399 our $git_dir;
 400 $git_dir = "$projectroot/$project" if $project;
 401
 402 # dispatch
 403 my %actions = (
 404         "blame" => \&git_blame2,
 405         "blobdiff" => \&git_blobdiff,
 406         "blobdiff_plain" => \&git_blobdiff_plain,
 407         "blob" => \&git_blob,
 408         "blob_plain" => \&git_blob_plain,
 409         "commitdiff" => \&git_commitdiff,
 410         "commitdiff_plain" => \&git_commitdiff_plain,
 411         "commit" => \&git_commit,
 412         "heads" => \&git_heads,
 413         "history" => \&git_history,
 414         "log" => \&git_log,
 415         "rss" => \&git_rss,
 416         "search" => \&git_search,
 417         "search_help" => \&git_search_help,
 418         "shortlog" => \&git_shortlog,
 419         "summary" => \&git_summary,
 420         "tag" => \&git_tag,
 421         "tags" => \&git_tags,
 422         "tree" => \&git_tree,
 423         "snapshot" => \&git_snapshot,
 424         # those below don't need $project
 425         "opml" => \&git_opml,
 426         "project_list" => \&git_project_list,
 427         "project_index" => \&git_project_index,
 428 );
 429
 430 if (defined $project) {
 431         $action ||= 'summary';
 432 } else {
 433         $action ||= 'project_list';
 434 }
 435 if (!defined($actions{$action})) {
 436         die_error(undef, "Unknown action");
 437 }
 438 if ($action !~ m/^(opml|project_list|project_index)$/ &&
 439     !$project) {
 440         die_error(undef, "Project needed");
 441 }
 442 $actions{$action}->();
 443 exit;
 444
 445 ## ======================================================================
 446 ## action links
 447
 448 sub href(%) {
 449         my %params = @_;
 450         my $href = $my_uri;
 451
 452         # XXX: Warning: If you touch this, check the search form for updating,
 453         # too.
 454
 455         my @mapping = (
 456                 project => "p",
 457                 action => "a",
 458                 file_name => "f",
 459                 file_parent => "fp",
 460                 hash => "h",
 461                 hash_parent => "hp",
 462                 hash_base => "hb",
 463                 hash_parent_base => "hpb",
 464                 page => "pg",
 465                 order => "o",
 466                 searchtext => "s",
 467                 searchtype => "st",
 468         );
 469         my %mapping = @mapping;
 470
 471         $params{'project'} = $project unless exists $params{'project'};
 472
 473         my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 474         if ($use_pathinfo) {
 475                 # use PATH_INFO for project name
 476                 $href .= "/$params{'project'}" if defined $params{'project'};
 477                 delete $params{'project'};
 478
 479                 # Summary just uses the project path URL
 480                 if (defined $params{'action'} && $params{'action'} eq 'summary') {
 481                         delete $params{'action'};
 482                 }
 483         }
 484
 485         # now encode the parameters explicitly
 486         my @result = ();
 487         for (my $i = 0; $i < @mapping; $i += 2) {
 488                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 489                 if (defined $params{$name}) {
 490                         push @result, $symbol . "=" . esc_param($params{$name});
 491                 }
 492         }
 493         $href .= "?" . join(';', @result) if scalar @result;
 494
 495         return $href;
 496 }
 497
 498
 499 ## ======================================================================
 500 ## validation, quoting/unquoting and escaping
 501
 502 sub validate_pathname {
 503         my $input = shift || return undef;
 504
 505         # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 506         # at the beginning, at the end, and between slashes.
 507         # also this catches doubled slashes
 508         if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 509                 return undef;
 510         }
 511         # no null characters
 512         if ($input =~ m!\0!) {
 513                 return undef;
 514         }
 515         return $input;
 516 }
 517
 518 sub validate_refname {
 519         my $input = shift || return undef;
 520
 521         # textual hashes are O.K.
 522         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 523                 return $input;
 524         }
 525         # it must be correct pathname
 526         $input = validate_pathname($input)
 527                 or return undef;
 528         # restrictions on ref name according to git-check-ref-format
 529         if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 530                 return undef;
 531         }
 532         return $input;
 533 }
 534
 535 # very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 536 sub to_utf8 {
 537         my $str = shift;
 538         return decode("utf8", $str, Encode::FB_DEFAULT);
 539 }
 540
 541 # quote unsafe chars, but keep the slash, even when it's not
 542 # correct, but quoted slashes look too horrible in bookmarks
 543 sub esc_param {
 544         my $str = shift;
 545         $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 546         $str =~ s/\+/%2B/g;
 547         $str =~ s/ /\+/g;
 548         return $str;
 549 }
 550
 551 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
 552 sub esc_url {
 553         my $str = shift;
 554         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 555         $str =~ s/\+/%2B/g;
 556         $str =~ s/ /\+/g;
 557         return $str;
 558 }
 559
 560 # replace invalid utf8 character with SUBSTITUTION sequence
 561 sub esc_html {
 562         my $str = shift;
 563         $str = to_utf8($str);
 564         $str = escapeHTML($str);
 565         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 566         $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 567         return $str;
 568 }
 569
 570 # git may return quoted and escaped filenames
 571 sub unquote {
 572         my $str = shift;
 573         if ($str =~ m/^"(.*)"$/) {
 574                 $str = $1;
 575                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 576         }
 577         return $str;
 578 }
 579
 580 # escape tabs (convert tabs to spaces)
 581 sub untabify {
 582         my $line = shift;
 583
 584         while ((my $pos = index($line, "\t")) != -1) {
 585                 if (my $count = (8 - ($pos % 8))) {
 586                         my $spaces = ' ' x $count;
 587                         $line =~ s/\t/$spaces/;
 588                 }
 589         }
 590
 591         return $line;
 592 }
 593
 594 sub project_in_list {
 595         my $project = shift;
 596         my @list = git_get_projects_list();
 597         return @list && scalar(grep { $_->{'path'} eq $project } @list);
 598 }
 599
 600 ## ----------------------------------------------------------------------
 601 ## HTML aware string manipulation
 602
 603 sub chop_str {
 604         my $str = shift;
 605         my $len = shift;
 606         my $add_len = shift || 10;
 607
 608         # allow only $len chars, but don't cut a word if it would fit in $add_len
 609         # if it doesn't fit, cut it if it's still longer than the dots we would add
 610         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 611         my $body = $1;
 612         my $tail = $2;
 613         if (length($tail) > 4) {
 614                 $tail = " ...";
 615                 $body =~ s/&[^;]*$//; # remove chopped character entities
 616         }
 617         return "$body$tail";
 618 }
 619
 620 ## ----------------------------------------------------------------------
 621 ## functions returning short strings
 622
 623 # CSS class for given age value (in seconds)
 624 sub age_class {
 625         my $age = shift;
 626
 627         if ($age < 60*60*2) {
 628                 return "age0";
 629         } elsif ($age < 60*60*24*2) {
 630                 return "age1";
 631         } else {
 632                 return "age2";
 633         }
 634 }
 635
 636 # convert age in seconds to "nn units ago" string
 637 sub age_string {
 638         my $age = shift;
 639         my $age_str;
 640
 641         if ($age > 60*60*24*365*2) {
 642                 $age_str = (int $age/60/60/24/365);
 643                 $age_str .= " years ago";
 644         } elsif ($age > 60*60*24*(365/12)*2) {
 645                 $age_str = int $age/60/60/24/(365/12);
 646                 $age_str .= " months ago";
 647         } elsif ($age > 60*60*24*7*2) {
 648                 $age_str = int $age/60/60/24/7;
 649                 $age_str .= " weeks ago";
 650         } elsif ($age > 60*60*24*2) {
 651                 $age_str = int $age/60/60/24;
 652                 $age_str .= " days ago";
 653         } elsif ($age > 60*60*2) {
 654                 $age_str = int $age/60/60;
 655                 $age_str .= " hours ago";
 656         } elsif ($age > 60*2) {
 657                 $age_str = int $age/60;
 658                 $age_str .= " min ago";
 659         } elsif ($age > 2) {
 660                 $age_str = int $age;
 661                 $age_str .= " sec ago";
 662         } else {
 663                 $age_str .= " right now";
 664         }
 665         return $age_str;
 666 }
 667
 668 # convert file mode in octal to symbolic file mode string
 669 sub mode_str {
 670         my $mode = oct shift;
 671
 672         if (S_ISDIR($mode & S_IFMT)) {
 673                 return 'drwxr-xr-x';
 674         } elsif (S_ISLNK($mode)) {
 675                 return 'lrwxrwxrwx';
 676         } elsif (S_ISREG($mode)) {
 677                 # git cares only about the executable bit
 678                 if ($mode & S_IXUSR) {
 679                         return '-rwxr-xr-x';
 680                 } else {
 681                         return '-rw-r--r--';
 682                 };
 683         } else {
 684                 return '----------';
 685         }
 686 }
 687
 688 # convert file mode in octal to file type string
 689 sub file_type {
 690         my $mode = shift;
 691
 692         if ($mode !~ m/^[0-7]+$/) {
 693                 return $mode;
 694         } else {
 695                 $mode = oct $mode;
 696         }
 697
 698         if (S_ISDIR($mode & S_IFMT)) {
 699                 return "directory";
 700         } elsif (S_ISLNK($mode)) {
 701                 return "symlink";
 702         } elsif (S_ISREG($mode)) {
 703                 return "file";
 704         } else {
 705                 return "unknown";
 706         }
 707 }
 708
 709 ## ----------------------------------------------------------------------
 710 ## functions returning short HTML fragments, or transforming HTML fragments
 711 ## which don't beling to other sections
 712
 713 # format line of commit message or tag comment
 714 sub format_log_line_html {
 715         my $line = shift;
 716
 717         $line = esc_html($line);
 718         $line =~ s/ /&nbsp;/g;
 719         if ($line =~ m/([0-9a-fA-F]{40})/) {
 720                 my $hash_text = $1;
 721                 if (git_get_type($hash_text) eq "commit") {
 722                         my $link =
 723                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 724                                         -class => "text"}, $hash_text);
 725                         $line =~ s/$hash_text/$link/;
 726                 }
 727         }
 728         return $line;
 729 }
 730
 731 # format marker of refs pointing to given object
 732 sub format_ref_marker {
 733         my ($refs, $id) = @_;
 734         my $markers = '';
 735
 736         if (defined $refs->{$id}) {
 737                 foreach my $ref (@{$refs->{$id}}) {
 738                         my ($type, $name) = qw();
 739                         # e.g. tags/v2.6.11 or heads/next
 740                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 741                                 $type = $1;
 742                                 $name = $2;
 743                         } else {
 744                                 $type = "ref";
 745                                 $name = $ref;
 746                         }
 747
 748                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 749                 }
 750         }
 751
 752         if ($markers) {
 753                 return ' <span class="refs">'. $markers . '</span>';
 754         } else {
 755                 return "";
 756         }
 757 }
 758
 759 # format, perhaps shortened and with markers, title line
 760 sub format_subject_html {
 761         my ($long, $short, $href, $extra) = @_;
 762         $extra = '' unless defined($extra);
 763
 764         if (length($short) < length($long)) {
 765                 return $cgi->a({-href => $href, -class => "list subject",
 766                                 -title => to_utf8($long)},
 767                        esc_html($short) . $extra);
 768         } else {
 769                 return $cgi->a({-href => $href, -class => "list subject"},
 770                        esc_html($long)  . $extra);
 771         }
 772 }
 773
 774 sub format_diff_line {
 775         my $line = shift;
 776         my $char = substr($line, 0, 1);
 777         my $diff_class = "";
 778
 779         chomp $line;
 780
 781         if ($char eq '+') {
 782                 $diff_class = " add";
 783         } elsif ($char eq "-") {
 784                 $diff_class = " rem";
 785         } elsif ($char eq "@") {
 786                 $diff_class = " chunk_header";
 787         } elsif ($char eq "\\") {
 788                 $diff_class = " incomplete";
 789         }
 790         $line = untabify($line);
 791         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 792 }
 793
 794 ## ----------------------------------------------------------------------
 795 ## git utility subroutines, invoking git commands
 796
 797 # returns path to the core git executable and the --git-dir parameter as list
 798 sub git_cmd {
 799         return $GIT, '--git-dir='.$git_dir;
 800 }
 801
 802 # returns path to the core git executable and the --git-dir parameter as string
 803 sub git_cmd_str {
 804         return join(' ', git_cmd());
 805 }
 806
 807 # get HEAD ref of given project as hash
 808 sub git_get_head_hash {
 809         my $project = shift;
 810         my $o_git_dir = $git_dir;
 811         my $retval = undef;
 812         $git_dir = "$projectroot/$project";
 813         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 814                 my $head = <$fd>;
 815                 close $fd;
 816                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 817                         $retval = $1;
 818                 }
 819         }
 820         if (defined $o_git_dir) {
 821                 $git_dir = $o_git_dir;
 822         }
 823         return $retval;
 824 }
 825
 826 # get type of given object
 827 sub git_get_type {
 828         my $hash = shift;
 829
 830         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 831         my $type = <$fd>;
 832         close $fd or return;
 833         chomp $type;
 834         return $type;
 835 }
 836
 837 sub git_get_project_config {
 838         my ($key, $type) = @_;
 839
 840         return unless ($key);
 841         $key =~ s/^gitweb\.//;
 842         return if ($key =~ m/\W/);
 843
 844         my @x = (git_cmd(), 'repo-config');
 845         if (defined $type) { push @x, $type; }
 846         push @x, "--get";
 847         push @x, "gitweb.$key";
 848         my $val = qx(@x);
 849         chomp $val;
 850         return ($val);
 851 }
 852
 853 # get hash of given path at given ref
 854 sub git_get_hash_by_path {
 855         my $base = shift;
 856         my $path = shift || return undef;
 857         my $type = shift;
 858
 859         $path =~ s,/+$,,;
 860
 861         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 862                 or die_error(undef, "Open git-ls-tree failed");
 863         my $line = <$fd>;
 864         close $fd or return undef;
 865
 866         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 867         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 868         if (defined $type && $type ne $2) {
 869                 # type doesn't match
 870                 return undef;
 871         }
 872         return $3;
 873 }
 874
 875 ## ......................................................................
 876 ## git utility functions, directly accessing git repository
 877
 878 sub git_get_project_description {
 879         my $path = shift;
 880
 881         open my $fd, "$projectroot/$path/description" or return undef;
 882         my $descr = <$fd>;
 883         close $fd;
 884         chomp $descr;
 885         return $descr;
 886 }
 887
 888 sub git_get_project_url_list {
 889         my $path = shift;
 890
 891         open my $fd, "$projectroot/$path/cloneurl" or return;
 892         my @git_project_url_list = map { chomp; $_ } <$fd>;
 893         close $fd;
 894
 895         return wantarray ? @git_project_url_list : \@git_project_url_list;
 896 }
 897
 898 sub git_get_projects_list {
 899         my @list;
 900
 901         if (-d $projects_list) {
 902                 # search in directory
 903                 my $dir = $projects_list;
 904                 my $pfxlen = length("$dir");
 905
 906                 File::Find::find({
 907                         follow_fast => 1, # follow symbolic links
 908                         dangling_symlinks => 0, # ignore dangling symlinks, silently
 909                         wanted => sub {
 910                                 # skip project-list toplevel, if we get it.
 911                                 return if (m!^[/.]$!);
 912                                 # only directories can be git repositories
 913                                 return unless (-d $_);
 914
 915                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
 916                                 # we check related file in $projectroot
 917                                 if (check_export_ok("$projectroot/$subdir")) {
 918                                         push @list, { path => $subdir };
 919                                         $File::Find::prune = 1;
 920                                 }
 921                         },
 922                 }, "$dir");
 923
 924         } elsif (-f $projects_list) {
 925                 # read from file(url-encoded):
 926                 # 'git%2Fgit.git Linus+Torvalds'
 927                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 928                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 929                 open my ($fd), $projects_list or return;
 930                 while (my $line = <$fd>) {
 931                         chomp $line;
 932                         my ($path, $owner) = split ' ', $line;
 933                         $path = unescape($path);
 934                         $owner = unescape($owner);
 935                         if (!defined $path) {
 936                                 next;
 937                         }
 938                         if (check_export_ok("$projectroot/$path")) {
 939                                 my $pr = {
 940                                         path => $path,
 941                                         owner => to_utf8($owner),
 942                                 };
 943                                 push @list, $pr
 944                         }
 945                 }
 946                 close $fd;
 947         }
 948         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 949         return @list;
 950 }
 951
 952 sub git_get_project_owner {
 953         my $project = shift;
 954         my $owner;
 955
 956         return undef unless $project;
 957
 958         # read from file (url-encoded):
 959         # 'git%2Fgit.git Linus+Torvalds'
 960         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 961         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 962         if (-f $projects_list) {
 963                 open (my $fd , $projects_list);
 964                 while (my $line = <$fd>) {
 965                         chomp $line;
 966                         my ($pr, $ow) = split ' ', $line;
 967                         $pr = unescape($pr);
 968                         $ow = unescape($ow);
 969                         if ($pr eq $project) {
 970                                 $owner = to_utf8($ow);
 971                                 last;
 972                         }
 973                 }
 974                 close $fd;
 975         }
 976         if (!defined $owner) {
 977                 $owner = get_file_owner("$projectroot/$project");
 978         }
 979
 980         return $owner;
 981 }
 982
 983 sub git_get_references {
 984         my $type = shift || "";
 985         my %refs;
 986         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 987         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 988         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 989                 or return;
 990
 991         while (my $line = <$fd>) {
 992                 chomp $line;
 993                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 994                         if (defined $refs{$1}) {
 995                                 push @{$refs{$1}}, $2;
 996                         } else {
 997                                 $refs{$1} = [ $2 ];
 998                         }
 999                 }
1000         }
1001         close $fd or return;
1002         return \%refs;
1003 }
1004
1005 sub git_get_rev_name_tags {
1006         my $hash = shift || return undef;
1007
1008         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1009                 or return;
1010         my $name_rev = <$fd>;
1011         close $fd;
1012
1013         if ($name_rev =~ m|^$hash tags/(.*)$|) {
1014                 return $1;
1015         } else {
1016                 # catches also '$hash undefined' output
1017                 return undef;
1018         }
1019 }
1020
1021 ## ----------------------------------------------------------------------
1022 ## parse to hash functions
1023
1024 sub parse_date {
1025         my $epoch = shift;
1026         my $tz = shift || "-0000";
1027
1028         my %date;
1029         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1030         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1031         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1032         $date{'hour'} = $hour;
1033         $date{'minute'} = $min;
1034         $date{'mday'} = $mday;
1035         $date{'day'} = $days[$wday];
1036         $date{'month'} = $months[$mon];
1037         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1038                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1039         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1040                              $mday, $months[$mon], $hour ,$min;
1041
1042         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1043         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1044         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1045         $date{'hour_local'} = $hour;
1046         $date{'minute_local'} = $min;
1047         $date{'tz_local'} = $tz;
1048         return %date;
1049 }
1050
1051 sub parse_tag {
1052         my $tag_id = shift;
1053         my %tag;
1054         my @comment;
1055
1056         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1057         $tag{'id'} = $tag_id;
1058         while (my $line = <$fd>) {
1059                 chomp $line;
1060                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1061                         $tag{'object'} = $1;
1062                 } elsif ($line =~ m/^type (.+)$/) {
1063                         $tag{'type'} = $1;
1064                 } elsif ($line =~ m/^tag (.+)$/) {
1065                         $tag{'name'} = $1;
1066                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1067                         $tag{'author'} = $1;
1068                         $tag{'epoch'} = $2;
1069                         $tag{'tz'} = $3;
1070                 } elsif ($line =~ m/--BEGIN/) {
1071                         push @comment, $line;
1072                         last;
1073                 } elsif ($line eq "") {
1074                         last;
1075                 }
1076         }
1077         push @comment, <$fd>;
1078         $tag{'comment'} = \@comment;
1079         close $fd or return;
1080         if (!defined $tag{'name'}) {
1081                 return
1082         };
1083         return %tag
1084 }
1085
1086 sub git_get_last_activity {
1087         my ($path) = @_;
1088         my $fd;
1089
1090         $git_dir = "$projectroot/$path";
1091         open($fd, "-|", git_cmd(), 'for-each-ref',
1092              '--format=%(refname) %(committer)',
1093              '--sort=-committerdate',
1094              'refs/heads') or return;
1095         my $most_recent = <$fd>;
1096         close $fd or return;
1097         if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1098                 my $timestamp = $1;
1099                 my $age = time - $timestamp;
1100                 return ($age, age_string($age));
1101         }
1102 }
1103
1104 sub parse_commit {
1105         my $commit_id = shift;
1106         my $commit_text = shift;
1107
1108         my @commit_lines;
1109         my %co;
1110
1111         if (defined $commit_text) {
1112                 @commit_lines = @$commit_text;
1113         } else {
1114                 local $/ = "\0";
1115                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
1116                         or return;
1117                 @commit_lines = split '\n', <$fd>;
1118                 close $fd or return;
1119                 pop @commit_lines;
1120         }
1121         my $header = shift @commit_lines;
1122         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1123                 return;
1124         }
1125         ($co{'id'}, my @parents) = split ' ', $header;
1126         $co{'parents'} = \@parents;
1127         $co{'parent'} = $parents[0];
1128         while (my $line = shift @commit_lines) {
1129                 last if $line eq "\n";
1130                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1131                         $co{'tree'} = $1;
1132                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1133                         $co{'author'} = $1;
1134                         $co{'author_epoch'} = $2;
1135                         $co{'author_tz'} = $3;
1136                         if ($co{'author'} =~ m/^([^<]+) </) {
1137                                 $co{'author_name'} = $1;
1138                         } else {
1139                                 $co{'author_name'} = $co{'author'};
1140                         }
1141                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1142                         $co{'committer'} = $1;
1143                         $co{'committer_epoch'} = $2;
1144                         $co{'committer_tz'} = $3;
1145                         $co{'committer_name'} = $co{'committer'};
1146                         $co{'committer_name'} =~ s/ <.*//;
1147                 }
1148         }
1149         if (!defined $co{'tree'}) {
1150                 return;
1151         };
1152
1153         foreach my $title (@commit_lines) {
1154                 $title =~ s/^    //;
1155                 if ($title ne "") {
1156                         $co{'title'} = chop_str($title, 80, 5);
1157                         # remove leading stuff of merges to make the interesting part visible
1158                         if (length($title) > 50) {
1159                                 $title =~ s/^Automatic //;
1160                                 $title =~ s/^merge (of|with) /Merge ... /i;
1161                                 if (length($title) > 50) {
1162                                         $title =~ s/(http|rsync):\/\///;
1163                                 }
1164                                 if (length($title) > 50) {
1165                                         $title =~ s/(master|www|rsync)\.//;
1166                                 }
1167                                 if (length($title) > 50) {
1168                                         $title =~ s/kernel.org:?//;
1169                                 }
1170                                 if (length($title) > 50) {
1171                                         $title =~ s/\/pub\/scm//;
1172                                 }
1173                         }
1174                         $co{'title_short'} = chop_str($title, 50, 5);
1175                         last;
1176                 }
1177         }
1178         if ($co{'title'} eq "") {
1179                 $co{'title'} = $co{'title_short'} = '(no commit message)';
1180         }
1181         # remove added spaces
1182         foreach my $line (@commit_lines) {
1183                 $line =~ s/^    //;
1184         }
1185         $co{'comment'} = \@commit_lines;
1186
1187         my $age = time - $co{'committer_epoch'};
1188         $co{'age'} = $age;
1189         $co{'age_string'} = age_string($age);
1190         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1191         if ($age > 60*60*24*7*2) {
1192                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1193                 $co{'age_string_age'} = $co{'age_string'};
1194         } else {
1195                 $co{'age_string_date'} = $co{'age_string'};
1196                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1197         }
1198         return %co;
1199 }
1200
1201 # parse ref from ref_file, given by ref_id, with given type
1202 sub parse_ref {
1203         my $ref_file = shift;
1204         my $ref_id = shift;
1205         my $type = shift || git_get_type($ref_id);
1206         my %ref_item;
1207
1208         $ref_item{'type'} = $type;
1209         $ref_item{'id'} = $ref_id;
1210         $ref_item{'epoch'} = 0;
1211         $ref_item{'age'} = "unknown";
1212         if ($type eq "tag") {
1213                 my %tag = parse_tag($ref_id);
1214                 $ref_item{'comment'} = $tag{'comment'};
1215                 if ($tag{'type'} eq "commit") {
1216                         my %co = parse_commit($tag{'object'});
1217                         $ref_item{'epoch'} = $co{'committer_epoch'};
1218                         $ref_item{'age'} = $co{'age_string'};
1219                 } elsif (defined($tag{'epoch'})) {
1220                         my $age = time - $tag{'epoch'};
1221                         $ref_item{'epoch'} = $tag{'epoch'};
1222                         $ref_item{'age'} = age_string($age);
1223                 }
1224                 $ref_item{'reftype'} = $tag{'type'};
1225                 $ref_item{'name'} = $tag{'name'};
1226                 $ref_item{'refid'} = $tag{'object'};
1227         } elsif ($type eq "commit"){
1228                 my %co = parse_commit($ref_id);
1229                 $ref_item{'reftype'} = "commit";
1230                 $ref_item{'name'} = $ref_file;
1231                 $ref_item{'title'} = $co{'title'};
1232                 $ref_item{'refid'} = $ref_id;
1233                 $ref_item{'epoch'} = $co{'committer_epoch'};
1234                 $ref_item{'age'} = $co{'age_string'};
1235         } else {
1236                 $ref_item{'reftype'} = $type;
1237                 $ref_item{'name'} = $ref_file;
1238                 $ref_item{'refid'} = $ref_id;
1239         }
1240
1241         return %ref_item;
1242 }
1243
1244 # parse line of git-diff-tree "raw" output
1245 sub parse_difftree_raw_line {
1246         my $line = shift;
1247         my %res;
1248
1249         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1250         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1251         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1252                 $res{'from_mode'} = $1;
1253                 $res{'to_mode'} = $2;
1254                 $res{'from_id'} = $3;
1255                 $res{'to_id'} = $4;
1256                 $res{'status'} = $5;
1257                 $res{'similarity'} = $6;
1258                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1259                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1260                 } else {
1261                         $res{'file'} = unquote($7);
1262                 }
1263         }
1264         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1265         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1266                 $res{'commit'} = $1;
1267         }
1268
1269         return wantarray ? %res : \%res;
1270 }
1271
1272 # parse line of git-ls-tree output
1273 sub parse_ls_tree_line ($;%) {
1274         my $line = shift;
1275         my %opts = @_;
1276         my %res;
1277
1278         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1279         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1280
1281         $res{'mode'} = $1;
1282         $res{'type'} = $2;
1283         $res{'hash'} = $3;
1284         if ($opts{'-z'}) {
1285                 $res{'name'} = $4;
1286         } else {
1287                 $res{'name'} = unquote($4);
1288         }
1289
1290         return wantarray ? %res : \%res;
1291 }
1292
1293 ## ......................................................................
1294 ## parse to array of hashes functions
1295
1296 sub git_get_refs_list {
1297         my $type = shift || "";
1298         my %refs;
1299         my @reflist;
1300
1301         my @refs;
1302         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1303                 or return;
1304         while (my $line = <$fd>) {
1305                 chomp $line;
1306                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1307                         if (defined $refs{$1}) {
1308                                 push @{$refs{$1}}, $2;
1309                         } else {
1310                                 $refs{$1} = [ $2 ];
1311                         }
1312
1313                         if (! $4) { # unpeeled, direct reference
1314                                 push @refs, { hash => $1, name => $3 }; # without type
1315                         } elsif ($3 eq $refs[-1]{'name'}) {
1316                                 # most likely a tag is followed by its peeled
1317                                 # (deref) one, and when that happens we know the
1318                                 # previous one was of type 'tag'.
1319                                 $refs[-1]{'type'} = "tag";
1320                         }
1321                 }
1322         }
1323         close $fd;
1324
1325         foreach my $ref (@refs) {
1326                 my $ref_file = $ref->{'name'};
1327                 my $ref_id   = $ref->{'hash'};
1328
1329                 my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1330                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1331
1332                 push @reflist, \%ref_item;
1333         }
1334         # sort refs by age
1335         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1336         return (\@reflist, \%refs);
1337 }
1338
1339 ## ----------------------------------------------------------------------
1340 ## filesystem-related functions
1341
1342 sub get_file_owner {
1343         my $path = shift;
1344
1345         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1346         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1347         if (!defined $gcos) {
1348                 return undef;
1349         }
1350         my $owner = $gcos;
1351         $owner =~ s/[,;].*$//;
1352         return to_utf8($owner);
1353 }
1354
1355 ## ......................................................................
1356 ## mimetype related functions
1357
1358 sub mimetype_guess_file {
1359         my $filename = shift;
1360         my $mimemap = shift;
1361         -r $mimemap or return undef;
1362
1363         my %mimemap;
1364         open(MIME, $mimemap) or return undef;
1365         while (<MIME>) {
1366                 next if m/^#/; # skip comments
1367                 my ($mime, $exts) = split(/\t+/);
1368                 if (defined $exts) {
1369                         my @exts = split(/\s+/, $exts);
1370                         foreach my $ext (@exts) {
1371                                 $mimemap{$ext} = $mime;
1372                         }
1373                 }
1374         }
1375         close(MIME);
1376
1377         $filename =~ /\.([^.]*)$/;
1378         return $mimemap{$1};
1379 }
1380
1381 sub mimetype_guess {
1382         my $filename = shift;
1383         my $mime;
1384         $filename =~ /\./ or return undef;
1385
1386         if ($mimetypes_file) {
1387                 my $file = $mimetypes_file;
1388                 if ($file !~ m!^/!) { # if it is relative path
1389                         # it is relative to project
1390                         $file = "$projectroot/$project/$file";
1391                 }
1392                 $mime = mimetype_guess_file($filename, $file);
1393         }
1394         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1395         return $mime;
1396 }
1397
1398 sub blob_mimetype {
1399         my $fd = shift;
1400         my $filename = shift;
1401
1402         if ($filename) {
1403                 my $mime = mimetype_guess($filename);
1404                 $mime and return $mime;
1405         }
1406
1407         # just in case
1408         return $default_blob_plain_mimetype unless $fd;
1409
1410         if (-T $fd) {
1411                 return 'text/plain' .
1412                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1413         } elsif (! $filename) {
1414                 return 'application/octet-stream';
1415         } elsif ($filename =~ m/\.png$/i) {
1416                 return 'image/png';
1417         } elsif ($filename =~ m/\.gif$/i) {
1418                 return 'image/gif';
1419         } elsif ($filename =~ m/\.jpe?g$/i) {
1420                 return 'image/jpeg';
1421         } else {
1422                 return 'application/octet-stream';
1423         }
1424 }
1425
1426 ## ======================================================================
1427 ## functions printing HTML: header, footer, error page
1428
1429 sub git_header_html {
1430         my $status = shift || "200 OK";
1431         my $expires = shift;
1432
1433         my $title = "$site_name";
1434         if (defined $project) {
1435                 $title .= " - $project";
1436                 if (defined $action) {
1437                         $title .= "/$action";
1438                         if (defined $file_name) {
1439                                 $title .= " - " . esc_html($file_name);
1440                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1441                                         $title .= "/";
1442                                 }
1443                         }
1444                 }
1445         }
1446         my $content_type;
1447         # require explicit support from the UA if we are to send the page as
1448         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1449         # we have to do this because MSIE sometimes globs '*/*', pretending to
1450         # support xhtml+xml but choking when it gets what it asked for.
1451         if (defined $cgi->http('HTTP_ACCEPT') &&
1452             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1453             $cgi->Accept('application/xhtml+xml') != 0) {
1454                 $content_type = 'application/xhtml+xml';
1455         } else {
1456                 $content_type = 'text/html';
1457         }
1458         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1459                            -status=> $status, -expires => $expires);
1460         print <<EOF;
1461 <?xml version="1.0" encoding="utf-8"?>
1462 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1463 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1464 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1465 <!-- git core binaries version $git_version -->
1466 <head>
1467 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1468 <meta name="generator" content="gitweb/$version git/$git_version"/>
1469 <meta name="robots" content="index, nofollow"/>
1470 <title>$title</title>
1471 EOF
1472 # print out each stylesheet that exist
1473         if (defined $stylesheet) {
1474 #provides backwards capability for those people who define style sheet in a config file
1475                 print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1476         } else {
1477                 foreach my $stylesheet (@stylesheets) {
1478                         next unless $stylesheet;
1479                         print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1480                 }
1481         }
1482         if (defined $project) {
1483                 printf('<link rel="alternate" title="%s log" '.
1484                        'href="%s" type="application/rss+xml"/>'."\n",
1485                        esc_param($project), href(action=>"rss"));
1486         } else {
1487                 printf('<link rel="alternate" title="%s projects list" '.
1488                        'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1489                        $site_name, href(project=>undef, action=>"project_index"));
1490                 printf('<link rel="alternate" title="%s projects logs" '.
1491                        'href="%s" type="text/x-opml"/>'."\n",
1492                        $site_name, href(project=>undef, action=>"opml"));
1493         }
1494         if (defined $favicon) {
1495                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1496         }
1497
1498         print "</head>\n" .
1499               "<body>\n";
1500
1501         if (-f $site_header) {
1502                 open (my $fd, $site_header);
1503                 print <$fd>;
1504                 close $fd;
1505         }
1506
1507         print "<div class=\"page_header\">\n" .
1508               $cgi->a({-href => esc_url($logo_url),
1509                        -title => $logo_label},
1510                       qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1511         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1512         if (defined $project) {
1513                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1514                 if (defined $action) {
1515                         print " / $action";
1516                 }
1517                 print "\n";
1518                 if (!defined $searchtext) {
1519                         $searchtext = "";
1520                 }
1521                 my $search_hash;
1522                 if (defined $hash_base) {
1523                         $search_hash = $hash_base;
1524                 } elsif (defined $hash) {
1525                         $search_hash = $hash;
1526                 } else {
1527                         $search_hash = "HEAD";
1528                 }
1529                 $cgi->param("a", "search");
1530                 $cgi->param("h", $search_hash);
1531                 $cgi->param("p", $project);
1532                 print $cgi->startform(-method => "get", -action => $my_uri) .
1533                       "<div class=\"search\">\n" .
1534                       $cgi->hidden(-name => "p") . "\n" .
1535                       $cgi->hidden(-name => "a") . "\n" .
1536                       $cgi->hidden(-name => "h") . "\n" .
1537                       $cgi->popup_menu(-name => 'st', -default => 'commit',
1538                                        -values => ['commit', 'author', 'committer', 'pickaxe']) .
1539                       $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
1540                       " search:\n",
1541                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1542                       "</div>" .
1543                       $cgi->end_form() . "\n";
1544         }
1545         print "</div>\n";
1546 }
1547
1548 sub git_footer_html {
1549         print "<div class=\"page_footer\">\n";
1550         if (defined $project) {
1551                 my $descr = git_get_project_description($project);
1552                 if (defined $descr) {
1553                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1554                 }
1555                 print $cgi->a({-href => href(action=>"rss"),
1556                               -class => "rss_logo"}, "RSS") . "\n";
1557         } else {
1558                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1559                               -class => "rss_logo"}, "OPML") . " ";
1560                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1561                               -class => "rss_logo"}, "TXT") . "\n";
1562         }
1563         print "</div>\n" ;
1564
1565         if (-f $site_footer) {
1566                 open (my $fd, $site_footer);
1567                 print <$fd>;
1568                 close $fd;
1569         }
1570
1571         print "</body>\n" .
1572               "</html>";
1573 }
1574
1575 sub die_error {
1576         my $status = shift || "403 Forbidden";
1577         my $error = shift || "Malformed query, file missing or permission denied";
1578
1579         git_header_html($status);
1580         print <<EOF;
1581 <div class="page_body">
1582 <br /><br />
1583 $status - $error
1584 <br />
1585 </div>
1586 EOF
1587         git_footer_html();
1588         exit;
1589 }
1590
1591 ## ----------------------------------------------------------------------
1592 ## functions printing or outputting HTML: navigation
1593
1594 sub git_print_page_nav {
1595         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1596         $extra = '' if !defined $extra; # pager or formats
1597
1598         my @navs = qw(summary shortlog log commit commitdiff tree);
1599         if ($suppress) {
1600                 @navs = grep { $_ ne $suppress } @navs;
1601         }
1602
1603         my %arg = map { $_ => {action=>$_} } @navs;
1604         if (defined $head) {
1605                 for (qw(commit commitdiff)) {
1606                         $arg{$_}{hash} = $head;
1607                 }
1608                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1609                         for (qw(shortlog log)) {
1610                                 $arg{$_}{hash} = $head;
1611                         }
1612                 }
1613         }
1614         $arg{tree}{hash} = $treehead if defined $treehead;
1615         $arg{tree}{hash_base} = $treebase if defined $treebase;
1616
1617         print "<div class=\"page_nav\">\n" .
1618                 (join " | ",
1619                  map { $_ eq $current ?
1620                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1621                  } @navs);
1622         print "<br/>\n$extra<br/>\n" .
1623               "</div>\n";
1624 }
1625
1626 sub format_paging_nav {
1627         my ($action, $hash, $head, $page, $nrevs) = @_;
1628         my $paging_nav;
1629
1630
1631         if ($hash ne $head || $page) {
1632                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1633         } else {
1634                 $paging_nav .= "HEAD";
1635         }
1636
1637         if ($page > 0) {
1638                 $paging_nav .= " &sdot; " .
1639                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1640                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1641         } else {
1642                 $paging_nav .= " &sdot; prev";
1643         }
1644
1645         if ($nrevs >= (100 * ($page+1)-1)) {
1646                 $paging_nav .= " &sdot; " .
1647                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1648                                  -accesskey => "n", -title => "Alt-n"}, "next");
1649         } else {
1650                 $paging_nav .= " &sdot; next";
1651         }
1652
1653         return $paging_nav;
1654 }
1655
1656 ## ......................................................................
1657 ## functions printing or outputting HTML: div
1658
1659 sub git_print_header_div {
1660         my ($action, $title, $hash, $hash_base) = @_;
1661         my %args = ();
1662
1663         $args{action} = $action;
1664         $args{hash} = $hash if $hash;
1665         $args{hash_base} = $hash_base if $hash_base;
1666
1667         print "<div class=\"header\">\n" .
1668               $cgi->a({-href => href(%args), -class => "title"},
1669               $title ? $title : $action) .
1670               "\n</div>\n";
1671 }
1672
1673 #sub git_print_authorship (\%) {
1674 sub git_print_authorship {
1675         my $co = shift;
1676
1677         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1678         print "<div class=\"author_date\">" .
1679               esc_html($co->{'author_name'}) .
1680               " [$ad{'rfc2822'}";
1681         if ($ad{'hour_local'} < 6) {
1682                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1683                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1684         } else {
1685                 printf(" (%02d:%02d %s)",
1686                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1687         }
1688         print "]</div>\n";
1689 }
1690
1691 sub git_print_page_path {
1692         my $name = shift;
1693         my $type = shift;
1694         my $hb = shift;
1695
1696
1697         print "<div class=\"page_path\">";
1698         print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1699                       -title => 'tree root'}, "[$project]");
1700         print " / ";
1701         if (defined $name) {
1702                 my @dirname = split '/', $name;
1703                 my $basename = pop @dirname;
1704                 my $fullname = '';
1705
1706                 foreach my $dir (@dirname) {
1707                         $fullname .= ($fullname ? '/' : '') . $dir;
1708                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1709                                                      hash_base=>$hb),
1710                                       -title => $fullname}, esc_html($dir));
1711                         print " / ";
1712                 }
1713                 if (defined $type && $type eq 'blob') {
1714                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1715                                                      hash_base=>$hb),
1716                                       -title => $name}, esc_html($basename));
1717                 } elsif (defined $type && $type eq 'tree') {
1718                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1719                                                      hash_base=>$hb),
1720                                       -title => $name}, esc_html($basename));
1721                         print " / ";
1722                 } else {
1723                         print esc_html($basename);
1724                 }
1725         }
1726         print "<br/></div>\n";
1727 }
1728
1729 # sub git_print_log (\@;%) {
1730 sub git_print_log ($;%) {
1731         my $log = shift;
1732         my %opts = @_;
1733
1734         if ($opts{'-remove_title'}) {
1735                 # remove title, i.e. first line of log
1736                 shift @$log;
1737         }
1738         # remove leading empty lines
1739         while (defined $log->[0] && $log->[0] eq "") {
1740                 shift @$log;
1741         }
1742
1743         # print log
1744         my $signoff = 0;
1745         my $empty = 0;
1746         foreach my $line (@$log) {
1747                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1748                         $signoff = 1;
1749                         $empty = 0;
1750                         if (! $opts{'-remove_signoff'}) {
1751                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1752                                 next;
1753                         } else {
1754                                 # remove signoff lines
1755                                 next;
1756                         }
1757                 } else {
1758                         $signoff = 0;
1759                 }
1760
1761                 # print only one empty line
1762                 # do not print empty line after signoff
1763                 if ($line eq "") {
1764                         next if ($empty || $signoff);
1765                         $empty = 1;
1766                 } else {
1767                         $empty = 0;
1768                 }
1769
1770                 print format_log_line_html($line) . "<br/>\n";
1771         }
1772
1773         if ($opts{'-final_empty_line'}) {
1774                 # end with single empty line
1775                 print "<br/>\n" unless $empty;
1776         }
1777 }
1778
1779 sub git_print_simplified_log {
1780         my $log = shift;
1781         my $remove_title = shift;
1782
1783         git_print_log($log,
1784                 -final_empty_line=> 1,
1785                 -remove_title => $remove_title);
1786 }
1787
1788 # print tree entry (row of git_tree), but without encompassing <tr> element
1789 sub git_print_tree_entry {
1790         my ($t, $basedir, $hash_base, $have_blame) = @_;
1791
1792         my %base_key = ();
1793         $base_key{hash_base} = $hash_base if defined $hash_base;
1794
1795         # The format of a table row is: mode list link.  Where mode is
1796         # the mode of the entry, list is the name of the entry, an href,
1797         # and link is the action links of the entry.
1798
1799         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1800         if ($t->{'type'} eq "blob") {
1801                 print "<td class=\"list\">" .
1802                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1803                                                file_name=>"$basedir$t->{'name'}", %base_key),
1804                                 -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1805                 print "<td class=\"link\">";
1806                 print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1807                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1808                               "blob");
1809                 if ($have_blame) {
1810                         print " | " .
1811                               $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1812                                                            file_name=>"$basedir$t->{'name'}", %base_key)},
1813                                             "blame");
1814                 }
1815                 if (defined $hash_base) {
1816                         print " | " .
1817                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1818                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1819                                       "history");
1820                 }
1821                 print " | " .
1822                         $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1823                                                file_name=>"$basedir$t->{'name'}")},
1824                                 "raw");
1825                 print "</td>\n";
1826
1827         } elsif ($t->{'type'} eq "tree") {
1828                 print "<td class=\"list\">";
1829                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1830                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1831                               esc_html($t->{'name'}));
1832                 print "</td>\n";
1833                 print "<td class=\"link\">";
1834                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1835                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1836                               "tree");
1837                 if (defined $hash_base) {
1838                         print " | " .
1839                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1840                                                      file_name=>"$basedir$t->{'name'}")},
1841                                       "history");
1842                 }
1843                 print "</td>\n";
1844         }
1845 }
1846
1847 ## ......................................................................
1848 ## functions printing large fragments of HTML
1849
1850 sub git_difftree_body {
1851         my ($difftree, $hash, $parent) = @_;
1852
1853         print "<div class=\"list_head\">\n";
1854         if ($#{$difftree} > 10) {
1855                 print(($#{$difftree} + 1) . " files changed:\n");
1856         }
1857         print "</div>\n";
1858
1859         print "<table class=\"diff_tree\">\n";
1860         my $alternate = 1;
1861         my $patchno = 0;
1862         foreach my $line (@{$difftree}) {
1863                 my %diff = parse_difftree_raw_line($line);
1864
1865                 if ($alternate) {
1866                         print "<tr class=\"dark\">\n";
1867                 } else {
1868                         print "<tr class=\"light\">\n";
1869                 }
1870                 $alternate ^= 1;
1871
1872                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1873                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1874                 if ($diff{'to_mode'} ne ('0' x 6)) {
1875                         $to_mode_oct = oct $diff{'to_mode'};
1876                         if (S_ISREG($to_mode_oct)) { # only for regular file
1877                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1878                         }
1879                         $to_file_type = file_type($diff{'to_mode'});
1880                 }
1881                 if ($diff{'from_mode'} ne ('0' x 6)) {
1882                         $from_mode_oct = oct $diff{'from_mode'};
1883                         if (S_ISREG($to_mode_oct)) { # only for regular file
1884                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1885                         }
1886                         $from_file_type = file_type($diff{'from_mode'});
1887                 }
1888
1889                 if ($diff{'status'} eq "A") { # created
1890                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1891                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1892                         $mode_chng   .= "]</span>";
1893                         print "<td>";
1894                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1895                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1896                                       -class => "list"}, esc_html($diff{'file'}));
1897                         print "</td>\n";
1898                         print "<td>$mode_chng</td>\n";
1899                         print "<td class=\"link\">";
1900                         if ($action eq 'commitdiff') {
1901                                 # link to patch
1902                                 $patchno++;
1903                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1904                         }
1905                         print "</td>\n";
1906
1907                 } elsif ($diff{'status'} eq "D") { # deleted
1908                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1909                         print "<td>";
1910                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1911                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1912                                        -class => "list"}, esc_html($diff{'file'}));
1913                         print "</td>\n";
1914                         print "<td>$mode_chng</td>\n";
1915                         print "<td class=\"link\">";
1916                         if ($action eq 'commitdiff') {
1917                                 # link to patch
1918                                 $patchno++;
1919                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1920                                 print " | ";
1921                         }
1922                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1923                                                      hash_base=>$parent, file_name=>$diff{'file'})},
1924                                       "blob") . " | ";
1925                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1926                                                      file_name=>$diff{'file'})},
1927                                       "blame") . " | ";
1928                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1929                                                      file_name=>$diff{'file'})},
1930                                       "history");
1931                         print "</td>\n";
1932
1933                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1934                         my $mode_chnge = "";
1935                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1936                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1937                                 if ($from_file_type != $to_file_type) {
1938                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1939                                 }
1940                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1941                                         if ($from_mode_str && $to_mode_str) {
1942                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1943                                         } elsif ($to_mode_str) {
1944                                                 $mode_chnge .= " mode: $to_mode_str";
1945                                         }
1946                                 }
1947                                 $mode_chnge .= "]</span>\n";
1948                         }
1949                         print "<td>";
1950                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1951                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1952                                       -class => "list"}, esc_html($diff{'file'}));
1953                         print "</td>\n";
1954                         print "<td>$mode_chnge</td>\n";
1955                         print "<td class=\"link\">";
1956                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1957                                 if ($action eq 'commitdiff') {
1958                                         # link to patch
1959                                         $patchno++;
1960                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1961                                 } else {
1962                                         print $cgi->a({-href => href(action=>"blobdiff",
1963                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1964                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1965                                                                      file_name=>$diff{'file'})},
1966                                                       "diff");
1967                                 }
1968                                 print " | ";
1969                         }
1970                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1971                                                      hash_base=>$hash, file_name=>$diff{'file'})},
1972                                       "blob") . " | ";
1973                         print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
1974                                                      file_name=>$diff{'file'})},
1975                                       "blame") . " | ";
1976                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
1977                                                      file_name=>$diff{'file'})},
1978                                       "history");
1979                         print "</td>\n";
1980
1981                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1982                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1983                         my $nstatus = $status_name{$diff{'status'}};
1984                         my $mode_chng = "";
1985                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1986                                 # mode also for directories, so we cannot use $to_mode_str
1987                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1988                         }
1989                         print "<td>" .
1990                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1991                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1992                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1993                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1994                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1995                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1996                                       -class => "list"}, esc_html($diff{'from_file'})) .
1997                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1998                               "<td class=\"link\">";
1999                         if ($diff{'to_id'} ne $diff{'from_id'}) {
2000                                 if ($action eq 'commitdiff') {
2001                                         # link to patch
2002                                         $patchno++;
2003                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
2004                                 } else {
2005                                         print $cgi->a({-href => href(action=>"blobdiff",
2006                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2007                                                                      hash_base=>$hash, hash_parent_base=>$parent,
2008                                                                      file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
2009                                                       "diff");
2010                                 }
2011                                 print " | ";
2012                         }
2013                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2014                                                      hash_base=>$parent, file_name=>$diff{'from_file'})},
2015                                       "blob") . " | ";
2016                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
2017                                                      file_name=>$diff{'from_file'})},
2018                                       "blame") . " | ";
2019                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2020                                                     file_name=>$diff{'from_file'})},
2021                                       "history");
2022                         print "</td>\n";
2023
2024                 } # we should not encounter Unmerged (U) or Unknown (X) status
2025                 print "</tr>\n";
2026         }
2027         print "</table>\n";
2028 }
2029
2030 sub git_patchset_body {
2031         my ($fd, $difftree, $hash, $hash_parent) = @_;
2032
2033         my $patch_idx = 0;
2034         my $in_header = 0;
2035         my $patch_found = 0;
2036         my $diffinfo;
2037
2038         print "<div class=\"patchset\">\n";
2039
2040         LINE:
2041         while (my $patch_line = <$fd>) {
2042                 chomp $patch_line;
2043
2044                 if ($patch_line =~ m/^diff /) { # "git diff" header
2045                         # beginning of patch (in patchset)
2046                         if ($patch_found) {
2047                                 # close previous patch
2048                                 print "</div>\n"; # class="patch"
2049                         } else {
2050                                 # first patch in patchset
2051                                 $patch_found = 1;
2052                         }
2053                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2054
2055                         if (ref($difftree->[$patch_idx]) eq "HASH") {
2056                                 $diffinfo = $difftree->[$patch_idx];
2057                         } else {
2058                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2059                         }
2060                         $patch_idx++;
2061
2062                         # for now, no extended header, hence we skip empty patches
2063                         # companion to  next LINE if $in_header;
2064                         if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
2065                                 $in_header = 1;
2066                                 next LINE;
2067                         }
2068
2069                         if ($diffinfo->{'status'} eq "A") { # added
2070                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
2071                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2072                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2073                                               $diffinfo->{'to_id'}) . " (new)" .
2074                                       "</div>\n"; # class="diff_info"
2075
2076                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
2077                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
2078                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2079                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2080                                               $diffinfo->{'from_id'}) . " (deleted)" .
2081                                       "</div>\n"; # class="diff_info"
2082
2083                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
2084                                  $diffinfo->{'status'} eq "C" || # copied
2085                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
2086                                 print "<div class=\"diff_info\">" .
2087                                       file_type($diffinfo->{'from_mode'}) . ":" .
2088                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2089                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
2090                                               $diffinfo->{'from_id'}) .
2091                                       " -> " .
2092                                       file_type($diffinfo->{'to_mode'}) . ":" .
2093                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2094                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
2095                                               $diffinfo->{'to_id'});
2096                                 print "</div>\n"; # class="diff_info"
2097
2098                         } else { # modified, mode changed, ...
2099                                 print "<div class=\"diff_info\">" .
2100                                       file_type($diffinfo->{'from_mode'}) . ":" .
2101                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2102                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2103                                               $diffinfo->{'from_id'}) .
2104                                       " -> " .
2105                                       file_type($diffinfo->{'to_mode'}) . ":" .
2106                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2107                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2108                                               $diffinfo->{'to_id'});
2109                                 print "</div>\n"; # class="diff_info"
2110                         }
2111
2112                         #print "<div class=\"diff extended_header\">\n";
2113                         $in_header = 1;
2114                         next LINE;
2115                 } # start of patch in patchset
2116
2117
2118                 if ($in_header && $patch_line =~ m/^---/) {
2119                         #print "</div>\n"; # class="diff extended_header"
2120                         $in_header = 0;
2121
2122                         my $file = $diffinfo->{'from_file'};
2123                         $file  ||= $diffinfo->{'file'};
2124                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2125                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
2126                                         -class => "list"}, esc_html($file));
2127                         $patch_line =~ s|a/.*$|a/$file|g;
2128                         print "<div class=\"diff from_file\">$patch_line</div>\n";
2129
2130                         $patch_line = <$fd>;
2131                         chomp $patch_line;
2132
2133                         #$patch_line =~ m/^+++/;
2134                         $file    = $diffinfo->{'to_file'};
2135                         $file  ||= $diffinfo->{'file'};
2136                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2137                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
2138                                         -class => "list"}, esc_html($file));
2139                         $patch_line =~ s|b/.*|b/$file|g;
2140                         print "<div class=\"diff to_file\">$patch_line</div>\n";
2141
2142                         next LINE;
2143                 }
2144                 next LINE if $in_header;
2145
2146                 print format_diff_line($patch_line);
2147         }
2148         print "</div>\n" if $patch_found; # class="patch"
2149
2150         print "</div>\n"; # class="patchset"
2151 }
2152
2153 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2154
2155 sub git_shortlog_body {
2156         # uses global variable $project
2157         my ($revlist, $from, $to, $refs, $extra) = @_;
2158
2159         $from = 0 unless defined $from;
2160         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2161
2162         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2163         my $alternate = 1;
2164         for (my $i = $from; $i <= $to; $i++) {
2165                 my $commit = $revlist->[$i];
2166                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2167                 my $ref = format_ref_marker($refs, $commit);
2168                 my %co = parse_commit($commit);
2169                 if ($alternate) {
2170                         print "<tr class=\"dark\">\n";
2171                 } else {
2172                         print "<tr class=\"light\">\n";
2173                 }
2174                 $alternate ^= 1;
2175                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2176                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2177                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2178                       "<td>";
2179                 print format_subject_html($co{'title'}, $co{'title_short'},
2180                                           href(action=>"commit", hash=>$commit), $ref);
2181                 print "</td>\n" .
2182                       "<td class=\"link\">" .
2183                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2184                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2185                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2186                 if (gitweb_have_snapshot()) {
2187                         print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2188                 }
2189                 print "</td>\n" .
2190                       "</tr>\n";
2191         }
2192         if (defined $extra) {
2193                 print "<tr>\n" .
2194                       "<td colspan=\"4\">$extra</td>\n" .
2195                       "</tr>\n";
2196         }
2197         print "</table>\n";
2198 }
2199
2200 sub git_history_body {
2201         # Warning: assumes constant type (blob or tree) during history
2202         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2203
2204         $from = 0 unless defined $from;
2205         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2206
2207         print "<table class=\"history\" cellspacing=\"0\">\n";
2208         my $alternate = 1;
2209         for (my $i = $from; $i <= $to; $i++) {
2210                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2211                         next;
2212                 }
2213
2214                 my $commit = $1;
2215                 my %co = parse_commit($commit);
2216                 if (!%co) {
2217                         next;
2218                 }
2219
2220                 my $ref = format_ref_marker($refs, $commit);
2221
2222                 if ($alternate) {
2223                         print "<tr class=\"dark\">\n";
2224                 } else {
2225                         print "<tr class=\"light\">\n";
2226                 }
2227                 $alternate ^= 1;
2228                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2229                       # shortlog uses      chop_str($co{'author_name'}, 10)
2230                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2231                       "<td>";
2232                 # originally git_history used chop_str($co{'title'}, 50)
2233                 print format_subject_html($co{'title'}, $co{'title_short'},
2234                                           href(action=>"commit", hash=>$commit), $ref);
2235                 print "</td>\n" .
2236                       "<td class=\"link\">" .
2237                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2238                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2239
2240                 if ($ftype eq 'blob') {
2241                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2242                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2243                         if (defined $blob_current && defined $blob_parent &&
2244                                         $blob_current ne $blob_parent) {
2245                                 print " | " .
2246                                         $cgi->a({-href => href(action=>"blobdiff",
2247                                                                hash=>$blob_current, hash_parent=>$blob_parent,
2248                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
2249                                                                file_name=>$file_name)},
2250                                                 "diff to current");
2251                         }
2252                 }
2253                 print "</td>\n" .
2254                       "</tr>\n";
2255         }
2256         if (defined $extra) {
2257                 print "<tr>\n" .
2258                       "<td colspan=\"4\">$extra</td>\n" .
2259                       "</tr>\n";
2260         }
2261         print "</table>\n";
2262 }
2263
2264 sub git_tags_body {
2265         # uses global variable $project
2266         my ($taglist, $from, $to, $extra) = @_;
2267         $from = 0 unless defined $from;
2268         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2269
2270         print "<table class=\"tags\" cellspacing=\"0\">\n";
2271         my $alternate = 1;
2272         for (my $i = $from; $i <= $to; $i++) {
2273                 my $entry = $taglist->[$i];
2274                 my %tag = %$entry;
2275                 my $comment_lines = $tag{'comment'};
2276                 my $comment = shift @$comment_lines;
2277                 my $comment_short;
2278                 if (defined $comment) {
2279                         $comment_short = chop_str($comment, 30, 5);
2280                 }
2281                 if ($alternate) {
2282                         print "<tr class=\"dark\">\n";
2283                 } else {
2284                         print "<tr class=\"light\">\n";
2285                 }
2286                 $alternate ^= 1;
2287                 print "<td><i>$tag{'age'}</i></td>\n" .
2288                       "<td>" .
2289                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2290                                -class => "list name"}, esc_html($tag{'name'})) .
2291                       "</td>\n" .
2292                       "<td>";
2293                 if (defined $comment) {
2294                         print format_subject_html($comment, $comment_short,
2295                                                   href(action=>"tag", hash=>$tag{'id'}));
2296                 }
2297                 print "</td>\n" .
2298                       "<td class=\"selflink\">";
2299                 if ($tag{'type'} eq "tag") {
2300                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2301                 } else {
2302                         print "&nbsp;";
2303                 }
2304                 print "</td>\n" .
2305                       "<td class=\"link\">" . " | " .
2306                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2307                 if ($tag{'reftype'} eq "commit") {
2308                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2309                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2310                 } elsif ($tag{'reftype'} eq "blob") {
2311                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2312                 }
2313                 print "</td>\n" .
2314                       "</tr>";
2315         }
2316         if (defined $extra) {
2317                 print "<tr>\n" .
2318                       "<td colspan=\"5\">$extra</td>\n" .
2319                       "</tr>\n";
2320         }
2321         print "</table>\n";
2322 }
2323
2324 sub git_heads_body {
2325         # uses global variable $project
2326         my ($headlist, $head, $from, $to, $extra) = @_;
2327         $from = 0 unless defined $from;
2328         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2329
2330         print "<table class=\"heads\" cellspacing=\"0\">\n";
2331         my $alternate = 1;
2332         for (my $i = $from; $i <= $to; $i++) {
2333                 my $entry = $headlist->[$i];
2334                 my %tag = %$entry;
2335                 my $curr = $tag{'id'} eq $head;
2336                 if ($alternate) {
2337                         print "<tr class=\"dark\">\n";
2338                 } else {
2339                         print "<tr class=\"light\">\n";
2340                 }
2341                 $alternate ^= 1;
2342                 print "<td><i>$tag{'age'}</i></td>\n" .
2343                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2344                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2345                                -class => "list name"},esc_html($tag{'name'})) .
2346                       "</td>\n" .
2347                       "<td class=\"link\">" .
2348                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2349                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") . " | " .
2350                       $cgi->a({-href => href(action=>"tree", hash=>$tag{'name'}, hash_base=>$tag{'name'})}, "tree") .
2351                       "</td>\n" .
2352                       "</tr>";
2353         }
2354         if (defined $extra) {
2355                 print "<tr>\n" .
2356                       "<td colspan=\"3\">$extra</td>\n" .
2357                       "</tr>\n";
2358         }
2359         print "</table>\n";
2360 }
2361
2362 ## ======================================================================
2363 ## ======================================================================
2364 ## actions
2365
2366 sub git_project_list {
2367         my $order = $cgi->param('o');
2368         if (defined $order && $order !~ m/project|descr|owner|age/) {
2369                 die_error(undef, "Unknown order parameter");
2370         }
2371
2372         my @list = git_get_projects_list();
2373         my @projects;
2374         if (!@list) {
2375                 die_error(undef, "No projects found");
2376         }
2377         foreach my $pr (@list) {
2378                 my (@aa) = git_get_last_activity($pr->{'path'});
2379                 unless (@aa) {
2380                         next;
2381                 }
2382                 ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2383                 if (!defined $pr->{'descr'}) {
2384                         my $descr = git_get_project_description($pr->{'path'}) || "";
2385                         $pr->{'descr'} = chop_str($descr, 25, 5);
2386                 }
2387                 if (!defined $pr->{'owner'}) {
2388                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2389                 }
2390                 push @projects, $pr;
2391         }
2392
2393         git_header_html();
2394         if (-f $home_text) {
2395                 print "<div class=\"index_include\">\n";
2396                 open (my $fd, $home_text);
2397                 print <$fd>;
2398                 close $fd;
2399                 print "</div>\n";
2400         }
2401         print "<table class=\"project_list\">\n" .
2402               "<tr>\n";
2403         $order ||= "project";
2404         if ($order eq "project") {
2405                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2406                 print "<th>Project</th>\n";
2407         } else {
2408                 print "<th>" .
2409                       $cgi->a({-href => href(project=>undef, order=>'project'),
2410                                -class => "header"}, "Project") .
2411                       "</th>\n";
2412         }
2413         if ($order eq "descr") {
2414                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2415                 print "<th>Description</th>\n";
2416         } else {
2417                 print "<th>" .
2418                       $cgi->a({-href => href(project=>undef, order=>'descr'),
2419                                -class => "header"}, "Description") .
2420                       "</th>\n";
2421         }
2422         if ($order eq "owner") {
2423                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2424                 print "<th>Owner</th>\n";
2425         } else {
2426                 print "<th>" .
2427                       $cgi->a({-href => href(project=>undef, order=>'owner'),
2428                                -class => "header"}, "Owner") .
2429                       "</th>\n";
2430         }
2431         if ($order eq "age") {
2432                 @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2433                 print "<th>Last Change</th>\n";
2434         } else {
2435                 print "<th>" .
2436                       $cgi->a({-href => href(project=>undef, order=>'age'),
2437                                -class => "header"}, "Last Change") .
2438                       "</th>\n";
2439         }
2440         print "<th></th>\n" .
2441               "</tr>\n";
2442         my $alternate = 1;
2443         foreach my $pr (@projects) {
2444                 if ($alternate) {
2445                         print "<tr class=\"dark\">\n";
2446                 } else {
2447                         print "<tr class=\"light\">\n";
2448                 }
2449                 $alternate ^= 1;
2450                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2451                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2452                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2453                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2454                 print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2455                       $pr->{'age_string'} . "</td>\n" .
2456                       "<td class=\"link\">" .
2457                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2458                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2459                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2460                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2461                       "</td>\n" .
2462                       "</tr>\n";
2463         }
2464         print "</table>\n";
2465         git_footer_html();
2466 }
2467
2468 sub git_project_index {
2469         my @projects = git_get_projects_list();
2470
2471         print $cgi->header(
2472                 -type => 'text/plain',
2473                 -charset => 'utf-8',
2474                 -content_disposition => 'inline; filename="index.aux"');
2475
2476         foreach my $pr (@projects) {
2477                 if (!exists $pr->{'owner'}) {
2478                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2479                 }
2480
2481                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2482                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2483                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2484                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2485                 $path  =~ s/ /\+/g;
2486                 $owner =~ s/ /\+/g;
2487
2488                 print "$path $owner\n";
2489         }
2490 }
2491
2492 sub git_summary {
2493         my $descr = git_get_project_description($project) || "none";
2494         my $head = git_get_head_hash($project);
2495         my %co = parse_commit($head);
2496         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2497
2498         my $owner = git_get_project_owner($project);
2499
2500         my ($reflist, $refs) = git_get_refs_list();
2501
2502         my @taglist;
2503         my @headlist;
2504         foreach my $ref (@$reflist) {
2505                 if ($ref->{'name'} =~ s!^heads/!!) {
2506                         push @headlist, $ref;
2507                 } else {
2508                         $ref->{'name'} =~ s!^tags/!!;
2509                         push @taglist, $ref;
2510                 }
2511         }
2512
2513         git_header_html();
2514         git_print_page_nav('summary','', $head);
2515
2516         print "<div class=\"title\">&nbsp;</div>\n";
2517         print "<table cellspacing=\"0\">\n" .
2518               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2519               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2520               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2521         # use per project git URL list in $projectroot/$project/cloneurl
2522         # or make project git URL from git base URL and project name
2523         my $url_tag = "URL";
2524         my @url_list = git_get_project_url_list($project);
2525         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2526         foreach my $git_url (@url_list) {
2527                 next unless $git_url;
2528                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2529                 $url_tag = "";
2530         }
2531         print "</table>\n";
2532
2533         if (-s "$projectroot/$project/README.html") {
2534                 if (open my $fd, "$projectroot/$project/README.html") {
2535                         print "<div class=\"title\">readme</div>\n";
2536                         print $_ while (<$fd>);
2537                         close $fd;
2538                 }
2539         }
2540
2541         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2542                 git_get_head_hash($project)
2543                 or die_error(undef, "Open git-rev-list failed");
2544         my @revlist = map { chomp; $_ } <$fd>;
2545         close $fd;
2546         git_print_header_div('shortlog');
2547         git_shortlog_body(\@revlist, 0, 15, $refs,
2548                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2549
2550         if (@taglist) {
2551                 git_print_header_div('tags');
2552                 git_tags_body(\@taglist, 0, 15,
2553                               $cgi->a({-href => href(action=>"tags")}, "..."));
2554         }
2555
2556         if (@headlist) {
2557                 git_print_header_div('heads');
2558                 git_heads_body(\@headlist, $head, 0, 15,
2559                                $cgi->a({-href => href(action=>"heads")}, "..."));
2560         }
2561
2562         git_footer_html();
2563 }
2564
2565 sub git_tag {
2566         my $head = git_get_head_hash($project);
2567         git_header_html();
2568         git_print_page_nav('','', $head,undef,$head);
2569         my %tag = parse_tag($hash);
2570         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2571         print "<div class=\"title_text\">\n" .
2572               "<table cellspacing=\"0\">\n" .
2573               "<tr>\n" .
2574               "<td>object</td>\n" .
2575               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2576                                $tag{'object'}) . "</td>\n" .
2577               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2578                                               $tag{'type'}) . "</td>\n" .
2579               "</tr>\n";
2580         if (defined($tag{'author'})) {
2581                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2582                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2583                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2584                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2585                         "</td></tr>\n";
2586         }
2587         print "</table>\n\n" .
2588               "</div>\n";
2589         print "<div class=\"page_body\">";
2590         my $comment = $tag{'comment'};
2591         foreach my $line (@$comment) {
2592                 print esc_html($line) . "<br/>\n";
2593         }
2594         print "</div>\n";
2595         git_footer_html();
2596 }
2597
2598 sub git_blame2 {
2599         my $fd;
2600         my $ftype;
2601
2602         my ($have_blame) = gitweb_check_feature('blame');
2603         if (!$have_blame) {
2604                 die_error('403 Permission denied', "Permission denied");
2605         }
2606         die_error('404 Not Found', "File name not defined") if (!$file_name);
2607         $hash_base ||= git_get_head_hash($project);
2608         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2609         my %co = parse_commit($hash_base)
2610                 or die_error(undef, "Reading commit failed");
2611         if (!defined $hash) {
2612                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2613                         or die_error(undef, "Error looking up file");
2614         }
2615         $ftype = git_get_type($hash);
2616         if ($ftype !~ "blob") {
2617                 die_error("400 Bad Request", "Object is not a blob");
2618         }
2619         open ($fd, "-|", git_cmd(), "blame", '-l', '--', $file_name, $hash_base)
2620                 or die_error(undef, "Open git-blame failed");
2621         git_header_html();
2622         my $formats_nav =
2623                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2624                         "blob") .
2625                 " | " .
2626                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2627                         "history") .
2628                 " | " .
2629                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2630                         "HEAD");
2631         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2632         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2633         git_print_page_path($file_name, $ftype, $hash_base);
2634         my @rev_color = (qw(light2 dark2));
2635         my $num_colors = scalar(@rev_color);
2636         my $current_color = 0;
2637         my $last_rev;
2638         print <<HTML;
2639 <div class="page_body">
2640 <table class="blame">
2641 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2642 HTML
2643         while (<$fd>) {
2644                 my ($full_rev, $author, $date, $lineno, $data) =
2645                         /^([0-9a-f]{40}).*?\s\((.*?)\s+([-\d]+ [:\d]+ [-+\d]+)\s+(\d+)\)\s(.*)/;
2646                 my $rev = substr($full_rev, 0, 8);
2647                 my $print_c8 = 0;
2648
2649                 if (!defined $last_rev) {
2650                         $last_rev = $full_rev;
2651                         $print_c8 = 1;
2652                 } elsif ($last_rev ne $full_rev) {
2653                         $last_rev = $full_rev;
2654                         $current_color = ++$current_color % $num_colors;
2655                         $print_c8 = 1;
2656                 }
2657                 print "<tr class=\"$rev_color[$current_color]\">\n";
2658                 print "<td class=\"sha1\"";
2659                 if ($print_c8 == 1) {
2660                         print " title=\"$author, $date\"";
2661                 }
2662                 print ">";
2663                 if ($print_c8 == 1) {
2664                         print $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2665                                       esc_html($rev));
2666                 }
2667                 print "</td>\n";
2668                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2669                       esc_html($lineno) . "</a></td>\n";
2670                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2671                 print "</tr>\n";
2672         }
2673         print "</table>\n";
2674         print "</div>";
2675         close $fd
2676                 or print "Reading blob failed\n";
2677         git_footer_html();
2678 }
2679
2680 sub git_blame {
2681         my $fd;
2682
2683         my ($have_blame) = gitweb_check_feature('blame');
2684         if (!$have_blame) {
2685                 die_error('403 Permission denied', "Permission denied");
2686         }
2687         die_error('404 Not Found', "File name not defined") if (!$file_name);
2688         $hash_base ||= git_get_head_hash($project);
2689         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2690         my %co = parse_commit($hash_base)
2691                 or die_error(undef, "Reading commit failed");
2692         if (!defined $hash) {
2693                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2694                         or die_error(undef, "Error lookup file");
2695         }
2696         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2697                 or die_error(undef, "Open git-annotate failed");
2698         git_header_html();
2699         my $formats_nav =
2700                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2701                         "blob") .
2702                 " | " .
2703                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2704                         "history") .
2705                 " | " .
2706                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2707                         "HEAD");
2708         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2709         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2710         git_print_page_path($file_name, 'blob', $hash_base);
2711         print "<div class=\"page_body\">\n";
2712         print <<HTML;
2713 <table class="blame">
2714   <tr>
2715     <th>Commit</th>
2716     <th>Age</th>
2717     <th>Author</th>
2718     <th>Line</th>
2719     <th>Data</th>
2720   </tr>
2721 HTML
2722         my @line_class = (qw(light dark));
2723         my $line_class_len = scalar (@line_class);
2724         my $line_class_num = $#line_class;
2725         while (my $line = <$fd>) {
2726                 my $long_rev;
2727                 my $short_rev;
2728                 my $author;
2729                 my $time;
2730                 my $lineno;
2731                 my $data;
2732                 my $age;
2733                 my $age_str;
2734                 my $age_class;
2735
2736                 chomp $line;
2737                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2738
2739                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2740                         $long_rev = $1;
2741                         $author   = $2;
2742                         $time     = $3;
2743                         $lineno   = $4;
2744                         $data     = $5;
2745                 } else {
2746                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2747                         next;
2748                 }
2749                 $short_rev  = substr ($long_rev, 0, 8);
2750                 $age        = time () - $time;
2751                 $age_str    = age_string ($age);
2752                 $age_str    =~ s/ /&nbsp;/g;
2753                 $age_class  = age_class($age);
2754                 $author     = esc_html ($author);
2755                 $author     =~ s/ /&nbsp;/g;
2756
2757                 $data = untabify($data);
2758                 $data = esc_html ($data);
2759
2760                 print <<HTML;
2761   <tr class="$line_class[$line_class_num]">
2762     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2763     <td class="$age_class">$age_str</td>
2764     <td>$author</td>
2765     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2766     <td class="pre">$data</td>
2767   </tr>
2768 HTML
2769         } # while (my $line = <$fd>)
2770         print "</table>\n\n";
2771         close $fd
2772                 or print "Reading blob failed.\n";
2773         print "</div>";
2774         git_footer_html();
2775 }
2776
2777 sub git_tags {
2778         my $head = git_get_head_hash($project);
2779         git_header_html();
2780         git_print_page_nav('','', $head,undef,$head);
2781         git_print_header_div('summary', $project);
2782
2783         my ($taglist) = git_get_refs_list("tags");
2784         if (@$taglist) {
2785                 git_tags_body($taglist);
2786         }
2787         git_footer_html();
2788 }
2789
2790 sub git_heads {
2791         my $head = git_get_head_hash($project);
2792         git_header_html();
2793         git_print_page_nav('','', $head,undef,$head);
2794         git_print_header_div('summary', $project);
2795
2796         my ($headlist) = git_get_refs_list("heads");
2797         if (@$headlist) {
2798                 git_heads_body($headlist, $head);
2799         }
2800         git_footer_html();
2801 }
2802
2803 sub git_blob_plain {
2804         my $expires;
2805
2806         if (!defined $hash) {
2807                 if (defined $file_name) {
2808                         my $base = $hash_base || git_get_head_hash($project);
2809                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2810                                 or die_error(undef, "Error lookup file");
2811                 } else {
2812                         die_error(undef, "No file name defined");
2813                 }
2814         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2815                 # blobs defined by non-textual hash id's can be cached
2816                 $expires = "+1d";
2817         }
2818
2819         my $type = shift;
2820         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2821                 or die_error(undef, "Couldn't cat $file_name, $hash");
2822
2823         $type ||= blob_mimetype($fd, $file_name);
2824
2825         # save as filename, even when no $file_name is given
2826         my $save_as = "$hash";
2827         if (defined $file_name) {
2828                 $save_as = $file_name;
2829         } elsif ($type =~ m/^text\//) {
2830                 $save_as .= '.txt';
2831         }
2832
2833         print $cgi->header(
2834                 -type => "$type",
2835                 -expires=>$expires,
2836                 -content_disposition => 'inline; filename="' . "$save_as" . '"');
2837         undef $/;
2838         binmode STDOUT, ':raw';
2839         print <$fd>;
2840         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2841         $/ = "\n";
2842         close $fd;
2843 }
2844
2845 sub git_blob {
2846         my $expires;
2847
2848         if (!defined $hash) {
2849                 if (defined $file_name) {
2850                         my $base = $hash_base || git_get_head_hash($project);
2851                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2852                                 or die_error(undef, "Error lookup file");
2853                 } else {
2854                         die_error(undef, "No file name defined");
2855                 }
2856         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2857                 # blobs defined by non-textual hash id's can be cached
2858                 $expires = "+1d";
2859         }
2860
2861         my ($have_blame) = gitweb_check_feature('blame');
2862         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2863                 or die_error(undef, "Couldn't cat $file_name, $hash");
2864         my $mimetype = blob_mimetype($fd, $file_name);
2865         if ($mimetype !~ m/^text\//) {
2866                 close $fd;
2867                 return git_blob_plain($mimetype);
2868         }
2869         git_header_html(undef, $expires);
2870         my $formats_nav = '';
2871         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2872                 if (defined $file_name) {
2873                         if ($have_blame) {
2874                                 $formats_nav .=
2875                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2876                                                                hash=>$hash, file_name=>$file_name)},
2877                                                 "blame") .
2878                                         " | ";
2879                         }
2880                         $formats_nav .=
2881                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2882                                                        hash=>$hash, file_name=>$file_name)},
2883                                         "history") .
2884                                 " | " .
2885                                 $cgi->a({-href => href(action=>"blob_plain",
2886                                                        hash=>$hash, file_name=>$file_name)},
2887                                         "raw") .
2888                                 " | " .
2889                                 $cgi->a({-href => href(action=>"blob",
2890                                                        hash_base=>"HEAD", file_name=>$file_name)},
2891                                         "HEAD");
2892                 } else {
2893                         $formats_nav .=
2894                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2895                 }
2896                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2897                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2898         } else {
2899                 print "<div class=\"page_nav\">\n" .
2900                       "<br/><br/></div>\n" .
2901                       "<div class=\"title\">$hash</div>\n";
2902         }
2903         git_print_page_path($file_name, "blob", $hash_base);
2904         print "<div class=\"page_body\">\n";
2905         my $nr;
2906         while (my $line = <$fd>) {
2907                 chomp $line;
2908                 $nr++;
2909                 $line = untabify($line);
2910                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2911                        $nr, $nr, $nr, esc_html($line);
2912         }
2913         close $fd
2914                 or print "Reading blob failed.\n";
2915         print "</div>";
2916         git_footer_html();
2917 }
2918
2919 sub git_tree {
2920         my $have_snapshot = gitweb_have_snapshot();
2921
2922         if (!defined $hash_base) {
2923                 $hash_base = "HEAD";
2924         }
2925         if (!defined $hash) {
2926                 if (defined $file_name) {
2927                         $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
2928                 } else {
2929                         $hash = $hash_base;
2930                 }
2931         }
2932         $/ = "\0";
2933         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2934                 or die_error(undef, "Open git-ls-tree failed");
2935         my @entries = map { chomp; $_ } <$fd>;
2936         close $fd or die_error(undef, "Reading tree failed");
2937         $/ = "\n";
2938
2939         my $refs = git_get_references();
2940         my $ref = format_ref_marker($refs, $hash_base);
2941         git_header_html();
2942         my $basedir = '';
2943         my ($have_blame) = gitweb_check_feature('blame');
2944         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2945                 my @views_nav = ();
2946                 if (defined $file_name) {
2947                         push @views_nav,
2948                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2949                                                        hash=>$hash, file_name=>$file_name)},
2950                                         "history"),
2951                                 $cgi->a({-href => href(action=>"tree",
2952                                                        hash_base=>"HEAD", file_name=>$file_name)},
2953                                         "HEAD"),
2954                 }
2955                 if ($have_snapshot) {
2956                         # FIXME: Should be available when we have no hash base as well.
2957                         push @views_nav,
2958                                 $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
2959                                         "snapshot");
2960                 }
2961                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
2962                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2963         } else {
2964                 undef $hash_base;
2965                 print "<div class=\"page_nav\">\n";
2966                 print "<br/><br/></div>\n";
2967                 print "<div class=\"title\">$hash</div>\n";
2968         }
2969         if (defined $file_name) {
2970                 $basedir = $file_name;
2971                 if ($basedir ne '' && substr($basedir, -1) ne '/') {
2972                         $basedir .= '/';
2973                 }
2974         }
2975         git_print_page_path($file_name, 'tree', $hash_base);
2976         print "<div class=\"page_body\">\n";
2977         print "<table cellspacing=\"0\">\n";
2978         my $alternate = 1;
2979         # '..' (top directory) link if possible
2980         if (defined $hash_base &&
2981             defined $file_name && $file_name =~ m![^/]+$!) {
2982                 if ($alternate) {
2983                         print "<tr class=\"dark\">\n";
2984                 } else {
2985                         print "<tr class=\"light\">\n";
2986                 }
2987                 $alternate ^= 1;
2988
2989                 my $up = $file_name;
2990                 $up =~ s!/?[^/]+$!!;
2991                 undef $up unless $up;
2992                 # based on git_print_tree_entry
2993                 print '<td class="mode">' . mode_str('040000') . "</td>\n";
2994                 print '<td class="list">';
2995                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
2996                                              file_name=>$up)},
2997                               "..");
2998                 print "</td>\n";
2999                 print "<td class=\"link\"></td>\n";
3000
3001                 print "</tr>\n";
3002         }
3003         foreach my $line (@entries) {
3004                 my %t = parse_ls_tree_line($line, -z => 1);
3005
3006                 if ($alternate) {
3007                         print "<tr class=\"dark\">\n";
3008                 } else {
3009                         print "<tr class=\"light\">\n";
3010                 }
3011                 $alternate ^= 1;
3012
3013                 git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3014
3015                 print "</tr>\n";
3016         }
3017         print "</table>\n" .
3018               "</div>";
3019         git_footer_html();
3020 }
3021
3022 sub git_snapshot {
3023         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3024         my $have_snapshot = (defined $ctype && defined $suffix);
3025         if (!$have_snapshot) {
3026                 die_error('403 Permission denied', "Permission denied");
3027         }
3028
3029         if (!defined $hash) {
3030                 $hash = git_get_head_hash($project);
3031         }
3032
3033         my $filename = basename($project) . "-$hash.tar.$suffix";
3034
3035         print $cgi->header(
3036                 -type => 'application/x-tar',
3037                 -content_encoding => $ctype,
3038                 -content_disposition => 'inline; filename="' . "$filename" . '"',
3039                 -status => '200 OK');
3040
3041         my $git = git_cmd_str();
3042         my $name = $project;
3043         $name =~ s/\047/\047\\\047\047/g;
3044         open my $fd, "-|",
3045         "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3046                 or die_error(undef, "Execute git-tar-tree failed.");
3047         binmode STDOUT, ':raw';
3048         print <$fd>;
3049         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3050         close $fd;
3051
3052 }
3053
3054 sub git_log {
3055         my $head = git_get_head_hash($project);
3056         if (!defined $hash) {
3057                 $hash = $head;
3058         }
3059         if (!defined $page) {
3060                 $page = 0;
3061         }
3062         my $refs = git_get_references();
3063
3064         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3065         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3066                 or die_error(undef, "Open git-rev-list failed");
3067         my @revlist = map { chomp; $_ } <$fd>;
3068         close $fd;
3069
3070         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
3071
3072         git_header_html();
3073         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3074
3075         if (!@revlist) {
3076                 my %co = parse_commit($hash);
3077
3078                 git_print_header_div('summary', $project);
3079                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3080         }
3081         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
3082                 my $commit = $revlist[$i];
3083                 my $ref = format_ref_marker($refs, $commit);
3084                 my %co = parse_commit($commit);
3085                 next if !%co;
3086                 my %ad = parse_date($co{'author_epoch'});
3087                 git_print_header_div('commit',
3088                                "<span class=\"age\">$co{'age_string'}</span>" .
3089                                esc_html($co{'title'}) . $ref,
3090                                $commit);
3091                 print "<div class=\"title_text\">\n" .
3092                       "<div class=\"log_link\">\n" .
3093                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3094                       " | " .
3095                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3096                       " | " .
3097                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3098                       "<br/>\n" .
3099                       "</div>\n" .
3100                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3101                       "</div>\n";
3102
3103                 print "<div class=\"log_body\">\n";
3104                 git_print_simplified_log($co{'comment'});
3105                 print "</div>\n";
3106         }
3107         git_footer_html();
3108 }
3109
3110 sub git_commit {
3111         my %co = parse_commit($hash);
3112         if (!%co) {
3113                 die_error(undef, "Unknown commit object");
3114         }
3115         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3116         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3117
3118         my $parent = $co{'parent'};
3119         if (!defined $parent) {
3120                 $parent = "--root";
3121         }
3122         open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
3123                 or die_error(undef, "Open git-diff-tree failed");
3124         my @difftree = map { chomp; $_ } <$fd>;
3125         close $fd or die_error(undef, "Reading git-diff-tree failed");
3126
3127         # non-textual hash id's can be cached
3128         my $expires;
3129         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3130                 $expires = "+1d";
3131         }
3132         my $refs = git_get_references();
3133         my $ref = format_ref_marker($refs, $co{'id'});
3134
3135         my $have_snapshot = gitweb_have_snapshot();
3136
3137         my @views_nav = ();
3138         if (defined $file_name && defined $co{'parent'}) {
3139                 push @views_nav,
3140                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3141                                 "blame");
3142         }
3143         git_header_html(undef, $expires);
3144         git_print_page_nav('commit', '',
3145                            $hash, $co{'tree'}, $hash,
3146                            join (' | ', @views_nav));
3147
3148         if (defined $co{'parent'}) {
3149                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3150         } else {
3151                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3152         }
3153         print "<div class=\"title_text\">\n" .
3154               "<table cellspacing=\"0\">\n";
3155         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3156               "<tr>" .
3157               "<td></td><td> $ad{'rfc2822'}";
3158         if ($ad{'hour_local'} < 6) {
3159                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3160                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3161         } else {
3162                 printf(" (%02d:%02d %s)",
3163                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3164         }
3165         print "</td>" .
3166               "</tr>\n";
3167         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3168         print "<tr><td></td><td> $cd{'rfc2822'}" .
3169               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3170               "</td></tr>\n";
3171         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3172         print "<tr>" .
3173               "<td>tree</td>" .
3174               "<td class=\"sha1\">" .
3175               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3176                        class => "list"}, $co{'tree'}) .
3177               "</td>" .
3178               "<td class=\"link\">" .
3179               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3180                       "tree");
3181         if ($have_snapshot) {
3182                 print " | " .
3183                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3184         }
3185         print "</td>" .
3186               "</tr>\n";
3187         my $parents = $co{'parents'};
3188         foreach my $par (@$parents) {
3189                 print "<tr>" .
3190                       "<td>parent</td>" .
3191                       "<td class=\"sha1\">" .
3192                       $cgi->a({-href => href(action=>"commit", hash=>$par),
3193                                class => "list"}, $par) .
3194                       "</td>" .
3195                       "<td class=\"link\">" .
3196                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3197                       " | " .
3198                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3199                       "</td>" .
3200                       "</tr>\n";
3201         }
3202         print "</table>".
3203               "</div>\n";
3204
3205         print "<div class=\"page_body\">\n";
3206         git_print_log($co{'comment'});
3207         print "</div>\n";
3208
3209         git_difftree_body(\@difftree, $hash, $parent);
3210
3211         git_footer_html();
3212 }
3213
3214 sub git_blobdiff {
3215         my $format = shift || 'html';
3216
3217         my $fd;
3218         my @difftree;
3219         my %diffinfo;
3220         my $expires;
3221
3222         # preparing $fd and %diffinfo for git_patchset_body
3223         # new style URI
3224         if (defined $hash_base && defined $hash_parent_base) {
3225                 if (defined $file_name) {
3226                         # read raw output
3227                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
3228                                 "--", $file_name
3229                                 or die_error(undef, "Open git-diff-tree failed");
3230                         @difftree = map { chomp; $_ } <$fd>;
3231                         close $fd
3232                                 or die_error(undef, "Reading git-diff-tree failed");
3233                         @difftree
3234                                 or die_error('404 Not Found', "Blob diff not found");
3235
3236                 } elsif (defined $hash &&
3237                          $hash =~ /[0-9a-fA-F]{40}/) {
3238                         # try to find filename from $hash
3239
3240                         # read filtered raw output
3241                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
3242                                 or die_error(undef, "Open git-diff-tree failed");
3243                         @difftree =
3244                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3245                                 # $hash == to_id
3246                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3247                                 map { chomp; $_ } <$fd>;
3248                         close $fd
3249                                 or die_error(undef, "Reading git-diff-tree failed");
3250                         @difftree
3251                                 or die_error('404 Not Found', "Blob diff not found");
3252
3253                 } else {
3254                         die_error('404 Not Found', "Missing one of the blob diff parameters");
3255                 }
3256
3257                 if (@difftree > 1) {
3258                         die_error('404 Not Found', "Ambiguous blob diff specification");
3259                 }
3260
3261                 %diffinfo = parse_difftree_raw_line($difftree[0]);
3262                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3263                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3264
3265                 $hash_parent ||= $diffinfo{'from_id'};
3266                 $hash        ||= $diffinfo{'to_id'};
3267
3268                 # non-textual hash id's can be cached
3269                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3270                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3271                         $expires = '+1d';
3272                 }
3273
3274                 # open patch output
3275                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3276                         '-p', $hash_parent_base, $hash_base,
3277                         "--", $file_name
3278                         or die_error(undef, "Open git-diff-tree failed");
3279         }
3280
3281         # old/legacy style URI
3282         if (!%diffinfo && # if new style URI failed
3283             defined $hash && defined $hash_parent) {
3284                 # fake git-diff-tree raw output
3285                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3286                 $diffinfo{'from_id'} = $hash_parent;
3287                 $diffinfo{'to_id'}   = $hash;
3288                 if (defined $file_name) {
3289                         if (defined $file_parent) {
3290                                 $diffinfo{'status'} = '2';
3291                                 $diffinfo{'from_file'} = $file_parent;
3292                                 $diffinfo{'to_file'}   = $file_name;
3293                         } else { # assume not renamed
3294                                 $diffinfo{'status'} = '1';
3295                                 $diffinfo{'from_file'} = $file_name;
3296                                 $diffinfo{'to_file'}   = $file_name;
3297                         }
3298                 } else { # no filename given
3299                         $diffinfo{'status'} = '2';
3300                         $diffinfo{'from_file'} = $hash_parent;
3301                         $diffinfo{'to_file'}   = $hash;
3302                 }
3303
3304                 # non-textual hash id's can be cached
3305                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3306                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3307                         $expires = '+1d';
3308                 }
3309
3310                 # open patch output
3311                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3312                         or die_error(undef, "Open git-diff failed");
3313         } else  {
3314                 die_error('404 Not Found', "Missing one of the blob diff parameters")
3315                         unless %diffinfo;
3316         }
3317
3318         # header
3319         if ($format eq 'html') {
3320                 my $formats_nav =
3321                         $cgi->a({-href => href(action=>"blobdiff_plain",
3322                                                hash=>$hash, hash_parent=>$hash_parent,
3323                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3324                                                file_name=>$file_name, file_parent=>$file_parent)},
3325                                 "raw");
3326                 git_header_html(undef, $expires);
3327                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3328                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3329                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3330                 } else {
3331                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3332                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3333                 }
3334                 if (defined $file_name) {
3335                         git_print_page_path($file_name, "blob", $hash_base);
3336                 } else {
3337                         print "<div class=\"page_path\"></div>\n";
3338                 }
3339
3340         } elsif ($format eq 'plain') {
3341                 print $cgi->header(
3342                         -type => 'text/plain',
3343                         -charset => 'utf-8',
3344                         -expires => $expires,
3345                         -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3346
3347                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3348
3349         } else {
3350                 die_error(undef, "Unknown blobdiff format");
3351         }
3352
3353         # patch
3354         if ($format eq 'html') {
3355                 print "<div class=\"page_body\">\n";
3356
3357                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3358                 close $fd;
3359
3360                 print "</div>\n"; # class="page_body"
3361                 git_footer_html();
3362
3363         } else {
3364                 while (my $line = <$fd>) {
3365                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3366                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3367
3368                         print $line;
3369
3370                         last if $line =~ m!^\+\+\+!;
3371                 }
3372                 local $/ = undef;
3373                 print <$fd>;
3374                 close $fd;
3375         }
3376 }
3377
3378 sub git_blobdiff_plain {
3379         git_blobdiff('plain');
3380 }
3381
3382 sub git_commitdiff {
3383         my $format = shift || 'html';
3384         my %co = parse_commit($hash);
3385         if (!%co) {
3386                 die_error(undef, "Unknown commit object");
3387         }
3388         if (!defined $hash_parent) {
3389                 $hash_parent = $co{'parent'} || '--root';
3390         }
3391
3392         # read commitdiff
3393         my $fd;
3394         my @difftree;
3395         if ($format eq 'html') {
3396                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3397                         "--patch-with-raw", "--full-index", $hash_parent, $hash
3398                         or die_error(undef, "Open git-diff-tree failed");
3399
3400                 while (chomp(my $line = <$fd>)) {
3401                         # empty line ends raw part of diff-tree output
3402                         last unless $line;
3403                         push @difftree, $line;
3404                 }
3405
3406         } elsif ($format eq 'plain') {
3407                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3408                         '-p', $hash_parent, $hash
3409                         or die_error(undef, "Open git-diff-tree failed");
3410
3411         } else {
3412                 die_error(undef, "Unknown commitdiff format");
3413         }
3414
3415         # non-textual hash id's can be cached
3416         my $expires;
3417         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3418                 $expires = "+1d";
3419         }
3420
3421         # write commit message
3422         if ($format eq 'html') {
3423                 my $refs = git_get_references();
3424                 my $ref = format_ref_marker($refs, $co{'id'});
3425                 my $formats_nav =
3426                         $cgi->a({-href => href(action=>"commitdiff_plain",
3427                                                hash=>$hash, hash_parent=>$hash_parent)},
3428                                 "raw");
3429
3430                 git_header_html(undef, $expires);
3431                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3432                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3433                 git_print_authorship(\%co);
3434                 print "<div class=\"page_body\">\n";
3435                 print "<div class=\"log\">\n";
3436                 git_print_simplified_log($co{'comment'}, 1); # skip title
3437                 print "</div>\n"; # class="log"
3438
3439         } elsif ($format eq 'plain') {
3440                 my $refs = git_get_references("tags");
3441                 my $tagname = git_get_rev_name_tags($hash);
3442                 my $filename = basename($project) . "-$hash.patch";
3443
3444                 print $cgi->header(
3445                         -type => 'text/plain',
3446                         -charset => 'utf-8',
3447                         -expires => $expires,
3448                         -content_disposition => 'inline; filename="' . "$filename" . '"');
3449                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3450                 print <<TEXT;
3451 From: $co{'author'}
3452 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3453 Subject: $co{'title'}
3454 TEXT
3455                 print "X-Git-Tag: $tagname\n" if $tagname;
3456                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3457
3458                 foreach my $line (@{$co{'comment'}}) {
3459                         print "$line\n";
3460                 }
3461                 print "---\n\n";
3462         }
3463
3464         # write patch
3465         if ($format eq 'html') {
3466                 git_difftree_body(\@difftree, $hash, $hash_parent);
3467                 print "<br/>\n";
3468
3469                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3470                 close $fd;
3471                 print "</div>\n"; # class="page_body"
3472                 git_footer_html();
3473
3474         } elsif ($format eq 'plain') {
3475                 local $/ = undef;
3476                 print <$fd>;
3477                 close $fd
3478                         or print "Reading git-diff-tree failed\n";
3479         }
3480 }
3481
3482 sub git_commitdiff_plain {
3483         git_commitdiff('plain');
3484 }
3485
3486 sub git_history {
3487         if (!defined $hash_base) {
3488                 $hash_base = git_get_head_hash($project);
3489         }
3490         if (!defined $page) {
3491                 $page = 0;
3492         }
3493         my $ftype;
3494         my %co = parse_commit($hash_base);
3495         if (!%co) {
3496                 die_error(undef, "Unknown commit object");
3497         }
3498
3499         my $refs = git_get_references();
3500         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3501
3502         if (!defined $hash && defined $file_name) {
3503                 $hash = git_get_hash_by_path($hash_base, $file_name);
3504         }
3505         if (defined $hash) {
3506                 $ftype = git_get_type($hash);
3507         }
3508
3509         open my $fd, "-|",
3510                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3511                         or die_error(undef, "Open git-rev-list-failed");
3512         my @revlist = map { chomp; $_ } <$fd>;
3513         close $fd
3514                 or die_error(undef, "Reading git-rev-list failed");
3515
3516         my $paging_nav = '';
3517         if ($page > 0) {
3518                 $paging_nav .=
3519                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3520                                                file_name=>$file_name)},
3521                                 "first");
3522                 $paging_nav .= " &sdot; " .
3523                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3524                                                file_name=>$file_name, page=>$page-1),
3525                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3526         } else {
3527                 $paging_nav .= "first";
3528                 $paging_nav .= " &sdot; prev";
3529         }
3530         if ($#revlist >= (100 * ($page+1)-1)) {
3531                 $paging_nav .= " &sdot; " .
3532                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3533                                                file_name=>$file_name, page=>$page+1),
3534                                  -accesskey => "n", -title => "Alt-n"}, "next");
3535         } else {
3536                 $paging_nav .= " &sdot; next";
3537         }
3538         my $next_link = '';
3539         if ($#revlist >= (100 * ($page+1)-1)) {
3540                 $next_link =
3541                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3542                                                file_name=>$file_name, page=>$page+1),
3543                                  -title => "Alt-n"}, "next");
3544         }
3545
3546         git_header_html();
3547         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3548         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3549         git_print_page_path($file_name, $ftype, $hash_base);
3550
3551         git_history_body(\@revlist, ($page * 100), $#revlist,
3552                          $refs, $hash_base, $ftype, $next_link);
3553
3554         git_footer_html();
3555 }
3556
3557 sub git_search {
3558         if (!defined $searchtext) {
3559                 die_error(undef, "Text field empty");
3560         }
3561         if (!defined $hash) {
3562                 $hash = git_get_head_hash($project);
3563         }
3564         my %co = parse_commit($hash);
3565         if (!%co) {
3566                 die_error(undef, "Unknown commit object");
3567         }
3568
3569         $searchtype ||= 'commit';
3570         if ($searchtype eq 'pickaxe') {
3571                 # pickaxe may take all resources of your box and run for several minutes
3572                 # with every query - so decide by yourself how public you make this feature
3573                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3574                 if (!$have_pickaxe) {
3575                         die_error('403 Permission denied', "Permission denied");
3576                 }
3577         }
3578
3579         git_header_html();
3580         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3581         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3582
3583         print "<table cellspacing=\"0\">\n";
3584         my $alternate = 1;
3585         if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
3586                 $/ = "\0";
3587                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3588                 while (my $commit_text = <$fd>) {
3589                         if (!grep m/$searchtext/i, $commit_text) {
3590                                 next;
3591                         }
3592                         if ($searchtype eq 'author' && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3593                                 next;
3594                         }
3595                         if ($searchtype eq 'committer' && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3596                                 next;
3597                         }
3598                         my @commit_lines = split "\n", $commit_text;
3599                         my %co = parse_commit(undef, \@commit_lines);
3600                         if (!%co) {
3601                                 next;
3602                         }
3603                         if ($alternate) {
3604                                 print "<tr class=\"dark\">\n";
3605                         } else {
3606                                 print "<tr class=\"light\">\n";
3607                         }
3608                         $alternate ^= 1;
3609                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3610                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3611                               "<td>" .
3612                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3613                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3614                         my $comment = $co{'comment'};
3615                         foreach my $line (@$comment) {
3616                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3617                                         my $lead = esc_html($1) || "";
3618                                         $lead = chop_str($lead, 30, 10);
3619                                         my $match = esc_html($2) || "";
3620                                         my $trail = esc_html($3) || "";
3621                                         $trail = chop_str($trail, 30, 10);
3622                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3623                                         print chop_str($text, 80, 5) . "<br/>\n";
3624                                 }
3625                         }
3626                         print "</td>\n" .
3627                               "<td class=\"link\">" .
3628                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3629                               " | " .
3630                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3631                         print "</td>\n" .
3632                               "</tr>\n";
3633                 }
3634                 close $fd;
3635         }
3636
3637         if ($searchtype eq 'pickaxe') {
3638                 $/ = "\n";
3639                 my $git_command = git_cmd_str();
3640                 open my $fd, "-|", "$git_command rev-list $hash | " .
3641                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3642                 undef %co;
3643                 my @files;
3644                 while (my $line = <$fd>) {
3645                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3646                                 my %set;
3647                                 $set{'file'} = $6;
3648                                 $set{'from_id'} = $3;
3649                                 $set{'to_id'} = $4;
3650                                 $set{'id'} = $set{'to_id'};
3651                                 if ($set{'id'} =~ m/0{40}/) {
3652                                         $set{'id'} = $set{'from_id'};
3653                                 }
3654                                 if ($set{'id'} =~ m/0{40}/) {
3655                                         next;
3656                                 }
3657                                 push @files, \%set;
3658                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3659                                 if (%co) {
3660                                         if ($alternate) {
3661                                                 print "<tr class=\"dark\">\n";
3662                                         } else {
3663                                                 print "<tr class=\"light\">\n";
3664                                         }
3665                                         $alternate ^= 1;
3666                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3667                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3668                                               "<td>" .
3669                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3670                                                       -class => "list subject"},
3671                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3672                                         while (my $setref = shift @files) {
3673                                                 my %set = %$setref;
3674                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3675                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3676                                                               -class => "list"},
3677                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3678                                                       "<br/>\n";
3679                                         }
3680                                         print "</td>\n" .
3681                                               "<td class=\"link\">" .
3682                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3683                                               " | " .
3684                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3685                                         print "</td>\n" .
3686                                               "</tr>\n";
3687                                 }
3688                                 %co = parse_commit($1);
3689                         }
3690                 }
3691                 close $fd;
3692         }
3693         print "</table>\n";
3694         git_footer_html();
3695 }
3696
3697 sub git_search_help {
3698         git_header_html();
3699         git_print_page_nav('','', $hash,$hash,$hash);
3700         print <<EOT;
3701 <dl>
3702 <dt><b>commit</b></dt>
3703 <dd>The commit messages and authorship information will be scanned for the given string.</dd>
3704 <dt><b>author</b></dt>
3705 <dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
3706 <dt><b>committer</b></dt>
3707 <dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
3708 EOT
3709         my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3710         if ($have_pickaxe) {
3711                 print <<EOT;
3712 <dt><b>pickaxe</b></dt>
3713 <dd>All commits that caused the string to appear or disappear from any file (changes that
3714 added, removed or "modified" the string) will be listed. This search can take a while and
3715 takes a lot of strain on the server, so please use it wisely.</dd>
3716 EOT
3717         }
3718         print "</dl>\n";
3719         git_footer_html();
3720 }
3721
3722 sub git_shortlog {
3723         my $head = git_get_head_hash($project);
3724         if (!defined $hash) {
3725                 $hash = $head;
3726         }
3727         if (!defined $page) {
3728                 $page = 0;
3729         }
3730         my $refs = git_get_references();
3731
3732         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3733         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3734                 or die_error(undef, "Open git-rev-list failed");
3735         my @revlist = map { chomp; $_ } <$fd>;
3736         close $fd;
3737
3738         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3739         my $next_link = '';
3740         if ($#revlist >= (100 * ($page+1)-1)) {
3741                 $next_link =
3742                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3743                                  -title => "Alt-n"}, "next");
3744         }
3745
3746
3747         git_header_html();
3748         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3749         git_print_header_div('summary', $project);
3750
3751         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3752
3753         git_footer_html();
3754 }
3755
3756 ## ......................................................................
3757 ## feeds (RSS, OPML)
3758
3759 sub git_rss {
3760         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3761         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3762                 or die_error(undef, "Open git-rev-list failed");
3763         my @revlist = map { chomp; $_ } <$fd>;
3764         close $fd or die_error(undef, "Reading git-rev-list failed");
3765         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3766         print <<XML;
3767 <?xml version="1.0" encoding="utf-8"?>
3768 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3769 <channel>
3770 <title>$project $my_uri $my_url</title>
3771 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3772 <description>$project log</description>
3773 <language>en</language>
3774 XML
3775
3776         for (my $i = 0; $i <= $#revlist; $i++) {
3777                 my $commit = $revlist[$i];
3778                 my %co = parse_commit($commit);
3779                 # we read 150, we always show 30 and the ones more recent than 48 hours
3780                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3781                         last;
3782                 }
3783                 my %cd = parse_date($co{'committer_epoch'});
3784                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3785                         $co{'parent'}, $co{'id'}
3786                         or next;
3787                 my @difftree = map { chomp; $_ } <$fd>;
3788                 close $fd
3789                         or next;
3790                 print "<item>\n" .
3791                       "<title>" .
3792                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3793                       "</title>\n" .
3794                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3795                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3796                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3797                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3798                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3799                       "<content:encoded>" .
3800                       "<![CDATA[\n";
3801                 my $comment = $co{'comment'};
3802                 foreach my $line (@$comment) {
3803                         $line = to_utf8($line);
3804                         print "$line<br/>\n";
3805                 }
3806                 print "<br/>\n";
3807                 foreach my $line (@difftree) {
3808                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3809                                 next;
3810                         }
3811                         my $file = esc_html(unquote($7));
3812                         $file = to_utf8($file);
3813                         print "$file<br/>\n";
3814                 }
3815                 print "]]>\n" .
3816                       "</content:encoded>\n" .
3817                       "</item>\n";
3818         }
3819         print "</channel></rss>";
3820 }
3821
3822 sub git_opml {
3823         my @list = git_get_projects_list();
3824
3825         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3826         print <<XML;
3827 <?xml version="1.0" encoding="utf-8"?>
3828 <opml version="1.0">
3829 <head>
3830   <title>$site_name OPML Export</title>
3831 </head>
3832 <body>
3833 <outline text="git RSS feeds">
3834 XML
3835
3836         foreach my $pr (@list) {
3837                 my %proj = %$pr;
3838                 my $head = git_get_head_hash($proj{'path'});
3839                 if (!defined $head) {
3840                         next;
3841                 }
3842                 $git_dir = "$projectroot/$proj{'path'}";
3843                 my %co = parse_commit($head);
3844                 if (!%co) {
3845                         next;
3846                 }
3847
3848                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3849                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3850                 my $html = "$my_url?p=$proj{'path'};a=summary";
3851                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3852         }
3853         print <<XML;
3854 </outline>
3855 </body>
3856 </opml>
3857 XML
3858 }