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 # location for temporary files needed for diffs
  35 our $git_temp = "/tmp/gitweb";
  36
  37 # target of the home link on top of all pages
  38 our $home_link = $my_uri || "/";
  39
  40 # string of the home link on top of all pages
  41 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  42
  43 # name of your site or organization to appear in page titles
  44 # replace this with something more descriptive for clearer bookmarks
  45 our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  46
  47 # html text to include at home page
  48 our $home_text = "++GITWEB_HOMETEXT++";
  49
  50 # URI of default stylesheet
  51 our $stylesheet = "++GITWEB_CSS++";
  52 # URI of GIT logo
  53 our $logo = "++GITWEB_LOGO++";
  54
  55 # source of projects list
  56 our $projects_list = "++GITWEB_LIST++";
  57
  58 # list of git base URLs used for URL to where fetch project from,
  59 # i.e. full URL is "$git_base_url/$project"
  60 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  61
  62 # default blob_plain mimetype and default charset for text/plain blob
  63 our $default_blob_plain_mimetype = 'text/plain';
  64 our $default_text_plain_charset  = undef;
  65
  66 # file to use for guessing MIME types before trying /etc/mime.types
  67 # (relative to the current git repository)
  68 our $mimetypes_file = undef;
  69
  70 # You define site-wide feature defaults here; override them with
  71 # $GITWEB_CONFIG as necessary.
  72 our %feature =
  73 (
  74
  75 # feature  => {'sub' => feature-sub, 'override' => allow-override, 'default' => [ default options...]
  76
  77 'blame'         => {'sub' => \&feature_blame, 'override' => 0, 'default' => [0]},
  78 'snapshot'      => {'sub' => \&feature_snapshot, 'override' => 0, 'default' => ['x-gzip', 'gz', 'gzip']},
  79
  80 );
  81
  82 sub gitweb_check_feature {
  83         my ($name) = @_;
  84         return undef unless exists $feature{$name};
  85         my ($sub, $override, @defaults) = ($feature{$name}{'sub'},
  86                                                 $feature{$name}{'override'},
  87                                                 @{$feature{$name}{'default'}});
  88         if (!$override) { return @defaults; }
  89         return $sub->(@defaults);
  90 }
  91
  92 # To enable system wide have in $GITWEB_CONFIG
  93 # $feature{'blame'}{'default'} =  [1];
  94 # To have project specific config enable override in  $GITWEB_CONFIG
  95 # $feature{'blame'}{'override'} =  1;
  96 # and in project config gitweb.blame = 0|1;
  97
  98 sub feature_blame {
  99         my ($val) = git_get_project_config('blame', '--bool');
 100
 101         if ($val eq 'true') {
 102                 return 1;
 103         } elsif ($val eq 'false') {
 104                 return 0;
 105         }
 106
 107         return $_[0];
 108 }
 109
 110 # To disable system wide have in $GITWEB_CONFIG
 111 # $feature{'snapshot'}{'default'} =  [undef];
 112 # To have project specific config enable override in  $GITWEB_CONFIG
 113 # $feature{'blame'}{'override'} =  1;
 114 # and in project config  gitweb.snapshot = none|gzip|bzip2
 115
 116 sub feature_snapshot {
 117         my ($ctype, $suffix, $command) = @_;
 118
 119         my ($val) = git_get_project_config('snapshot');
 120
 121         if ($val eq 'gzip') {
 122                 return ('x-gzip', 'gz', 'gzip');
 123         } elsif ($val eq 'bzip2') {
 124                 return ('x-bzip2', 'bz2', 'bzip2');
 125         } elsif ($val eq 'none') {
 126                 return ();
 127         }
 128
 129         return ($ctype, $suffix, $command);
 130 }
 131
 132 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 133 require $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 134
 135 # version of the core git binary
 136 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 137
 138 $projects_list ||= $projectroot;
 139 if (! -d $git_temp) {
 140         mkdir($git_temp, 0700) || die_error(undef, "Couldn't mkdir $git_temp");
 141 }
 142
 143 # ======================================================================
 144 # input validation and dispatch
 145 our $action = $cgi->param('a');
 146 if (defined $action) {
 147         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 148                 die_error(undef, "Invalid action parameter");
 149         }
 150         # action which does not check rest of parameters
 151         if ($action eq "opml") {
 152                 git_opml();
 153                 exit;
 154         }
 155 }
 156
 157 our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
 158 if (defined $project) {
 159         $project =~ s|^/||;
 160         $project =~ s|/$||;
 161         $project = undef unless $project;
 162 }
 163 if (defined $project) {
 164         if (!validate_input($project)) {
 165                 die_error(undef, "Invalid project parameter");
 166         }
 167         if (!(-d "$projectroot/$project")) {
 168                 die_error(undef, "No such directory");
 169         }
 170         if (!(-e "$projectroot/$project/HEAD")) {
 171                 die_error(undef, "No such project");
 172         }
 173         $ENV{'GIT_DIR'} = "$projectroot/$project";
 174 } else {
 175         git_project_list();
 176         exit;
 177 }
 178
 179 our $file_name = $cgi->param('f');
 180 if (defined $file_name) {
 181         if (!validate_input($file_name)) {
 182                 die_error(undef, "Invalid file parameter");
 183         }
 184 }
 185
 186 our $file_parent = $cgi->param('fp');
 187 if (defined $file_parent) {
 188         if (!validate_input($file_parent)) {
 189                 die_error(undef, "Invalid file parent parameter");
 190         }
 191 }
 192
 193 our $hash = $cgi->param('h');
 194 if (defined $hash) {
 195         if (!validate_input($hash)) {
 196                 die_error(undef, "Invalid hash parameter");
 197         }
 198 }
 199
 200 our $hash_parent = $cgi->param('hp');
 201 if (defined $hash_parent) {
 202         if (!validate_input($hash_parent)) {
 203                 die_error(undef, "Invalid hash parent parameter");
 204         }
 205 }
 206
 207 our $hash_base = $cgi->param('hb');
 208 if (defined $hash_base) {
 209         if (!validate_input($hash_base)) {
 210                 die_error(undef, "Invalid hash base parameter");
 211         }
 212 }
 213
 214 our $page = $cgi->param('pg');
 215 if (defined $page) {
 216         if ($page =~ m/[^0-9]$/) {
 217                 die_error(undef, "Invalid page parameter");
 218         }
 219 }
 220
 221 our $searchtext = $cgi->param('s');
 222 if (defined $searchtext) {
 223         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 224                 die_error(undef, "Invalid search parameter");
 225         }
 226         $searchtext = quotemeta $searchtext;
 227 }
 228
 229 # dispatch
 230 my %actions = (
 231         "blame" => \&git_blame2,
 232         "blobdiff" => \&git_blobdiff,
 233         "blobdiff_plain" => \&git_blobdiff_plain,
 234         "blob" => \&git_blob,
 235         "blob_plain" => \&git_blob_plain,
 236         "commitdiff" => \&git_commitdiff,
 237         "commitdiff_plain" => \&git_commitdiff_plain,
 238         "commit" => \&git_commit,
 239         "heads" => \&git_heads,
 240         "history" => \&git_history,
 241         "log" => \&git_log,
 242         "rss" => \&git_rss,
 243         "search" => \&git_search,
 244         "shortlog" => \&git_shortlog,
 245         "summary" => \&git_summary,
 246         "tag" => \&git_tag,
 247         "tags" => \&git_tags,
 248         "tree" => \&git_tree,
 249         "snapshot" => \&git_snapshot,
 250 );
 251
 252 $action = 'summary' if (!defined($action));
 253 if (!defined($actions{$action})) {
 254         die_error(undef, "Unknown action");
 255 }
 256 $actions{$action}->();
 257 exit;
 258
 259 ## ======================================================================
 260 ## action links
 261
 262 sub href(%) {
 263         my %mapping = (
 264                 action => "a",
 265                 project => "p",
 266                 file_name => "f",
 267                 file_parent => "fp",
 268                 hash => "h",
 269                 hash_parent => "hp",
 270                 hash_base => "hb",
 271                 page => "pg",
 272                 searchtext => "s",
 273         );
 274
 275         my %params = @_;
 276         $params{"project"} ||= $project;
 277
 278         my $href = "$my_uri?";
 279         $href .= esc_param( join(";",
 280                 map {
 281                         "$mapping{$_}=$params{$_}" if defined $params{$_}
 282                 } keys %params
 283         ) );
 284
 285         return $href;
 286 }
 287
 288
 289 ## ======================================================================
 290 ## validation, quoting/unquoting and escaping
 291
 292 sub validate_input {
 293         my $input = shift;
 294
 295         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 296                 return $input;
 297         }
 298         if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 299                 return undef;
 300         }
 301         if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 302                 return undef;
 303         }
 304         return $input;
 305 }
 306
 307 # quote unsafe chars, but keep the slash, even when it's not
 308 # correct, but quoted slashes look too horrible in bookmarks
 309 sub esc_param {
 310         my $str = shift;
 311         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 312         $str =~ s/\+/%2B/g;
 313         $str =~ s/ /\+/g;
 314         return $str;
 315 }
 316
 317 # replace invalid utf8 character with SUBSTITUTION sequence
 318 sub esc_html {
 319         my $str = shift;
 320         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 321         $str = escapeHTML($str);
 322         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 323         return $str;
 324 }
 325
 326 # git may return quoted and escaped filenames
 327 sub unquote {
 328         my $str = shift;
 329         if ($str =~ m/^"(.*)"$/) {
 330                 $str = $1;
 331                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 332         }
 333         return $str;
 334 }
 335
 336 # escape tabs (convert tabs to spaces)
 337 sub untabify {
 338         my $line = shift;
 339
 340         while ((my $pos = index($line, "\t")) != -1) {
 341                 if (my $count = (8 - ($pos % 8))) {
 342                         my $spaces = ' ' x $count;
 343                         $line =~ s/\t/$spaces/;
 344                 }
 345         }
 346
 347         return $line;
 348 }
 349
 350 ## ----------------------------------------------------------------------
 351 ## HTML aware string manipulation
 352
 353 sub chop_str {
 354         my $str = shift;
 355         my $len = shift;
 356         my $add_len = shift || 10;
 357
 358         # allow only $len chars, but don't cut a word if it would fit in $add_len
 359         # if it doesn't fit, cut it if it's still longer than the dots we would add
 360         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 361         my $body = $1;
 362         my $tail = $2;
 363         if (length($tail) > 4) {
 364                 $tail = " ...";
 365                 $body =~ s/&[^;]*$//; # remove chopped character entities
 366         }
 367         return "$body$tail";
 368 }
 369
 370 ## ----------------------------------------------------------------------
 371 ## functions returning short strings
 372
 373 # CSS class for given age value (in seconds)
 374 sub age_class {
 375         my $age = shift;
 376
 377         if ($age < 60*60*2) {
 378                 return "age0";
 379         } elsif ($age < 60*60*24*2) {
 380                 return "age1";
 381         } else {
 382                 return "age2";
 383         }
 384 }
 385
 386 # convert age in seconds to "nn units ago" string
 387 sub age_string {
 388         my $age = shift;
 389         my $age_str;
 390
 391         if ($age > 60*60*24*365*2) {
 392                 $age_str = (int $age/60/60/24/365);
 393                 $age_str .= " years ago";
 394         } elsif ($age > 60*60*24*(365/12)*2) {
 395                 $age_str = int $age/60/60/24/(365/12);
 396                 $age_str .= " months ago";
 397         } elsif ($age > 60*60*24*7*2) {
 398                 $age_str = int $age/60/60/24/7;
 399                 $age_str .= " weeks ago";
 400         } elsif ($age > 60*60*24*2) {
 401                 $age_str = int $age/60/60/24;
 402                 $age_str .= " days ago";
 403         } elsif ($age > 60*60*2) {
 404                 $age_str = int $age/60/60;
 405                 $age_str .= " hours ago";
 406         } elsif ($age > 60*2) {
 407                 $age_str = int $age/60;
 408                 $age_str .= " min ago";
 409         } elsif ($age > 2) {
 410                 $age_str = int $age;
 411                 $age_str .= " sec ago";
 412         } else {
 413                 $age_str .= " right now";
 414         }
 415         return $age_str;
 416 }
 417
 418 # convert file mode in octal to symbolic file mode string
 419 sub mode_str {
 420         my $mode = oct shift;
 421
 422         if (S_ISDIR($mode & S_IFMT)) {
 423                 return 'drwxr-xr-x';
 424         } elsif (S_ISLNK($mode)) {
 425                 return 'lrwxrwxrwx';
 426         } elsif (S_ISREG($mode)) {
 427                 # git cares only about the executable bit
 428                 if ($mode & S_IXUSR) {
 429                         return '-rwxr-xr-x';
 430                 } else {
 431                         return '-rw-r--r--';
 432                 };
 433         } else {
 434                 return '----------';
 435         }
 436 }
 437
 438 # convert file mode in octal to file type string
 439 sub file_type {
 440         my $mode = oct shift;
 441
 442         if (S_ISDIR($mode & S_IFMT)) {
 443                 return "directory";
 444         } elsif (S_ISLNK($mode)) {
 445                 return "symlink";
 446         } elsif (S_ISREG($mode)) {
 447                 return "file";
 448         } else {
 449                 return "unknown";
 450         }
 451 }
 452
 453 ## ----------------------------------------------------------------------
 454 ## functions returning short HTML fragments, or transforming HTML fragments
 455 ## which don't beling to other sections
 456
 457 # format line of commit message or tag comment
 458 sub format_log_line_html {
 459         my $line = shift;
 460
 461         $line = esc_html($line);
 462         $line =~ s/ /&nbsp;/g;
 463         if ($line =~ m/([0-9a-fA-F]{40})/) {
 464                 my $hash_text = $1;
 465                 if (git_get_type($hash_text) eq "commit") {
 466                         my $link = $cgi->a({-class => "text", -href => href(action=>"commit", hash=>$hash_text)}, $hash_text);
 467                         $line =~ s/$hash_text/$link/;
 468                 }
 469         }
 470         return $line;
 471 }
 472
 473 # format marker of refs pointing to given object
 474 sub format_ref_marker {
 475         my ($refs, $id) = @_;
 476         my $markers = '';
 477
 478         if (defined $refs->{$id}) {
 479                 foreach my $ref (@{$refs->{$id}}) {
 480                         my ($type, $name) = qw();
 481                         # e.g. tags/v2.6.11 or heads/next
 482                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 483                                 $type = $1;
 484                                 $name = $2;
 485                         } else {
 486                                 $type = "ref";
 487                                 $name = $ref;
 488                         }
 489
 490                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 491                 }
 492         }
 493
 494         if ($markers) {
 495                 return ' <span class="refs">'. $markers . '</span>';
 496         } else {
 497                 return "";
 498         }
 499 }
 500
 501 # format, perhaps shortened and with markers, title line
 502 sub format_subject_html {
 503         my ($long, $short, $href, $extra) = @_;
 504         $extra = '' unless defined($extra);
 505
 506         if (length($short) < length($long)) {
 507                 return $cgi->a({-href => $href, -class => "list",
 508                                 -title => $long},
 509                        esc_html($short) . $extra);
 510         } else {
 511                 return $cgi->a({-href => $href, -class => "list"},
 512                        esc_html($long)  . $extra);
 513         }
 514 }
 515
 516 ## ----------------------------------------------------------------------
 517 ## git utility subroutines, invoking git commands
 518
 519 # get HEAD ref of given project as hash
 520 sub git_get_head_hash {
 521         my $project = shift;
 522         my $oENV = $ENV{'GIT_DIR'};
 523         my $retval = undef;
 524         $ENV{'GIT_DIR'} = "$projectroot/$project";
 525         if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
 526                 my $head = <$fd>;
 527                 close $fd;
 528                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 529                         $retval = $1;
 530                 }
 531         }
 532         if (defined $oENV) {
 533                 $ENV{'GIT_DIR'} = $oENV;
 534         }
 535         return $retval;
 536 }
 537
 538 # get type of given object
 539 sub git_get_type {
 540         my $hash = shift;
 541
 542         open my $fd, "-|", $GIT, "cat-file", '-t', $hash or return;
 543         my $type = <$fd>;
 544         close $fd or return;
 545         chomp $type;
 546         return $type;
 547 }
 548
 549 sub git_get_project_config {
 550         my ($key, $type) = @_;
 551
 552         return unless ($key);
 553         $key =~ s/^gitweb\.//;
 554         return if ($key =~ m/\W/);
 555
 556         my @x = ($GIT, 'repo-config');
 557         if (defined $type) { push @x, $type; }
 558         push @x, "--get";
 559         push @x, "gitweb.$key";
 560         my $val = qx(@x);
 561         chomp $val;
 562         return ($val);
 563 }
 564
 565 # get hash of given path at given ref
 566 sub git_get_hash_by_path {
 567         my $base = shift;
 568         my $path = shift || return undef;
 569
 570         my $tree = $base;
 571
 572         open my $fd, "-|", $GIT, "ls-tree", $base, "--", $path
 573                 or die_error(undef, "Open git-ls-tree failed");
 574         my $line = <$fd>;
 575         close $fd or return undef;
 576
 577         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 578         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 579         return $3;
 580 }
 581
 582 ## ......................................................................
 583 ## git utility functions, directly accessing git repository
 584
 585 # assumes that PATH is not symref
 586 sub git_get_hash_by_ref {
 587         my $path = shift;
 588
 589         open my $fd, "$projectroot/$path" or return undef;
 590         my $head = <$fd>;
 591         close $fd;
 592         chomp $head;
 593         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 594                 return $head;
 595         }
 596 }
 597
 598 sub git_get_project_description {
 599         my $path = shift;
 600
 601         open my $fd, "$projectroot/$path/description" or return undef;
 602         my $descr = <$fd>;
 603         close $fd;
 604         chomp $descr;
 605         return $descr;
 606 }
 607
 608 sub git_get_project_url_list {
 609         my $path = shift;
 610
 611         open my $fd, "$projectroot/$path/cloneurl" or return undef;
 612         my @git_project_url_list = map { chomp; $_ } <$fd>;
 613         close $fd;
 614
 615         return wantarray ? @git_project_url_list : \@git_project_url_list;
 616 }
 617
 618 sub git_get_projects_list {
 619         my @list;
 620
 621         if (-d $projects_list) {
 622                 # search in directory
 623                 my $dir = $projects_list;
 624                 opendir my ($dh), $dir or return undef;
 625                 while (my $dir = readdir($dh)) {
 626                         if (-e "$projectroot/$dir/HEAD") {
 627                                 my $pr = {
 628                                         path => $dir,
 629                                 };
 630                                 push @list, $pr
 631                         }
 632                 }
 633                 closedir($dh);
 634         } elsif (-f $projects_list) {
 635                 # read from file(url-encoded):
 636                 # 'git%2Fgit.git Linus+Torvalds'
 637                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 638                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 639                 open my ($fd), $projects_list or return undef;
 640                 while (my $line = <$fd>) {
 641                         chomp $line;
 642                         my ($path, $owner) = split ' ', $line;
 643                         $path = unescape($path);
 644                         $owner = unescape($owner);
 645                         if (!defined $path) {
 646                                 next;
 647                         }
 648                         if (-e "$projectroot/$path/HEAD") {
 649                                 my $pr = {
 650                                         path => $path,
 651                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 652                                 };
 653                                 push @list, $pr
 654                         }
 655                 }
 656                 close $fd;
 657         }
 658         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 659         return @list;
 660 }
 661
 662 sub git_get_project_owner {
 663         my $project = shift;
 664         my $owner;
 665
 666         return undef unless $project;
 667
 668         # read from file (url-encoded):
 669         # 'git%2Fgit.git Linus+Torvalds'
 670         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 671         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 672         if (-f $projects_list) {
 673                 open (my $fd , $projects_list);
 674                 while (my $line = <$fd>) {
 675                         chomp $line;
 676                         my ($pr, $ow) = split ' ', $line;
 677                         $pr = unescape($pr);
 678                         $ow = unescape($ow);
 679                         if ($pr eq $project) {
 680                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 681                                 last;
 682                         }
 683                 }
 684                 close $fd;
 685         }
 686         if (!defined $owner) {
 687                 $owner = get_file_owner("$projectroot/$project");
 688         }
 689
 690         return $owner;
 691 }
 692
 693 sub git_get_references {
 694         my $type = shift || "";
 695         my %refs;
 696         my $fd;
 697         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 698         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 699         if (-f "$projectroot/$project/info/refs") {
 700                 open $fd, "$projectroot/$project/info/refs"
 701                         or return;
 702         } else {
 703                 open $fd, "-|", $GIT, "ls-remote", "."
 704                         or return;
 705         }
 706
 707         while (my $line = <$fd>) {
 708                 chomp $line;
 709                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 710                         if (defined $refs{$1}) {
 711                                 push @{$refs{$1}}, $2;
 712                         } else {
 713                                 $refs{$1} = [ $2 ];
 714                         }
 715                 }
 716         }
 717         close $fd or return;
 718         return \%refs;
 719 }
 720
 721 ## ----------------------------------------------------------------------
 722 ## parse to hash functions
 723
 724 sub parse_date {
 725         my $epoch = shift;
 726         my $tz = shift || "-0000";
 727
 728         my %date;
 729         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 730         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 731         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 732         $date{'hour'} = $hour;
 733         $date{'minute'} = $min;
 734         $date{'mday'} = $mday;
 735         $date{'day'} = $days[$wday];
 736         $date{'month'} = $months[$mon];
 737         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 738         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 739
 740         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 741         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 742         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 743         $date{'hour_local'} = $hour;
 744         $date{'minute_local'} = $min;
 745         $date{'tz_local'} = $tz;
 746         return %date;
 747 }
 748
 749 sub parse_tag {
 750         my $tag_id = shift;
 751         my %tag;
 752         my @comment;
 753
 754         open my $fd, "-|", $GIT, "cat-file", "tag", $tag_id or return;
 755         $tag{'id'} = $tag_id;
 756         while (my $line = <$fd>) {
 757                 chomp $line;
 758                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 759                         $tag{'object'} = $1;
 760                 } elsif ($line =~ m/^type (.+)$/) {
 761                         $tag{'type'} = $1;
 762                 } elsif ($line =~ m/^tag (.+)$/) {
 763                         $tag{'name'} = $1;
 764                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 765                         $tag{'author'} = $1;
 766                         $tag{'epoch'} = $2;
 767                         $tag{'tz'} = $3;
 768                 } elsif ($line =~ m/--BEGIN/) {
 769                         push @comment, $line;
 770                         last;
 771                 } elsif ($line eq "") {
 772                         last;
 773                 }
 774         }
 775         push @comment, <$fd>;
 776         $tag{'comment'} = \@comment;
 777         close $fd or return;
 778         if (!defined $tag{'name'}) {
 779                 return
 780         };
 781         return %tag
 782 }
 783
 784 sub parse_commit {
 785         my $commit_id = shift;
 786         my $commit_text = shift;
 787
 788         my @commit_lines;
 789         my %co;
 790
 791         if (defined $commit_text) {
 792                 @commit_lines = @$commit_text;
 793         } else {
 794                 $/ = "\0";
 795                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id or return;
 796                 @commit_lines = split '\n', <$fd>;
 797                 close $fd or return;
 798                 $/ = "\n";
 799                 pop @commit_lines;
 800         }
 801         my $header = shift @commit_lines;
 802         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 803                 return;
 804         }
 805         ($co{'id'}, my @parents) = split ' ', $header;
 806         $co{'parents'} = \@parents;
 807         $co{'parent'} = $parents[0];
 808         while (my $line = shift @commit_lines) {
 809                 last if $line eq "\n";
 810                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 811                         $co{'tree'} = $1;
 812                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 813                         $co{'author'} = $1;
 814                         $co{'author_epoch'} = $2;
 815                         $co{'author_tz'} = $3;
 816                         if ($co{'author'} =~ m/^([^<]+) </) {
 817                                 $co{'author_name'} = $1;
 818                         } else {
 819                                 $co{'author_name'} = $co{'author'};
 820                         }
 821                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 822                         $co{'committer'} = $1;
 823                         $co{'committer_epoch'} = $2;
 824                         $co{'committer_tz'} = $3;
 825                         $co{'committer_name'} = $co{'committer'};
 826                         $co{'committer_name'} =~ s/ <.*//;
 827                 }
 828         }
 829         if (!defined $co{'tree'}) {
 830                 return;
 831         };
 832
 833         foreach my $title (@commit_lines) {
 834                 $title =~ s/^    //;
 835                 if ($title ne "") {
 836                         $co{'title'} = chop_str($title, 80, 5);
 837                         # remove leading stuff of merges to make the interesting part visible
 838                         if (length($title) > 50) {
 839                                 $title =~ s/^Automatic //;
 840                                 $title =~ s/^merge (of|with) /Merge ... /i;
 841                                 if (length($title) > 50) {
 842                                         $title =~ s/(http|rsync):\/\///;
 843                                 }
 844                                 if (length($title) > 50) {
 845                                         $title =~ s/(master|www|rsync)\.//;
 846                                 }
 847                                 if (length($title) > 50) {
 848                                         $title =~ s/kernel.org:?//;
 849                                 }
 850                                 if (length($title) > 50) {
 851                                         $title =~ s/\/pub\/scm//;
 852                                 }
 853                         }
 854                         $co{'title_short'} = chop_str($title, 50, 5);
 855                         last;
 856                 }
 857         }
 858         # remove added spaces
 859         foreach my $line (@commit_lines) {
 860                 $line =~ s/^    //;
 861         }
 862         $co{'comment'} = \@commit_lines;
 863
 864         my $age = time - $co{'committer_epoch'};
 865         $co{'age'} = $age;
 866         $co{'age_string'} = age_string($age);
 867         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 868         if ($age > 60*60*24*7*2) {
 869                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 870                 $co{'age_string_age'} = $co{'age_string'};
 871         } else {
 872                 $co{'age_string_date'} = $co{'age_string'};
 873                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 874         }
 875         return %co;
 876 }
 877
 878 # parse ref from ref_file, given by ref_id, with given type
 879 sub parse_ref {
 880         my $ref_file = shift;
 881         my $ref_id = shift;
 882         my $type = shift || git_get_type($ref_id);
 883         my %ref_item;
 884
 885         $ref_item{'type'} = $type;
 886         $ref_item{'id'} = $ref_id;
 887         $ref_item{'epoch'} = 0;
 888         $ref_item{'age'} = "unknown";
 889         if ($type eq "tag") {
 890                 my %tag = parse_tag($ref_id);
 891                 $ref_item{'comment'} = $tag{'comment'};
 892                 if ($tag{'type'} eq "commit") {
 893                         my %co = parse_commit($tag{'object'});
 894                         $ref_item{'epoch'} = $co{'committer_epoch'};
 895                         $ref_item{'age'} = $co{'age_string'};
 896                 } elsif (defined($tag{'epoch'})) {
 897                         my $age = time - $tag{'epoch'};
 898                         $ref_item{'epoch'} = $tag{'epoch'};
 899                         $ref_item{'age'} = age_string($age);
 900                 }
 901                 $ref_item{'reftype'} = $tag{'type'};
 902                 $ref_item{'name'} = $tag{'name'};
 903                 $ref_item{'refid'} = $tag{'object'};
 904         } elsif ($type eq "commit"){
 905                 my %co = parse_commit($ref_id);
 906                 $ref_item{'reftype'} = "commit";
 907                 $ref_item{'name'} = $ref_file;
 908                 $ref_item{'title'} = $co{'title'};
 909                 $ref_item{'refid'} = $ref_id;
 910                 $ref_item{'epoch'} = $co{'committer_epoch'};
 911                 $ref_item{'age'} = $co{'age_string'};
 912         } else {
 913                 $ref_item{'reftype'} = $type;
 914                 $ref_item{'name'} = $ref_file;
 915                 $ref_item{'refid'} = $ref_id;
 916         }
 917
 918         return %ref_item;
 919 }
 920
 921 # parse line of git-diff-tree "raw" output
 922 sub parse_difftree_raw_line {
 923         my $line = shift;
 924         my %res;
 925
 926         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
 927         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
 928         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
 929                 $res{'from_mode'} = $1;
 930                 $res{'to_mode'} = $2;
 931                 $res{'from_id'} = $3;
 932                 $res{'to_id'} = $4;
 933                 $res{'status'} = $5;
 934                 $res{'similarity'} = $6;
 935                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
 936                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
 937                 } else {
 938                         $res{'file'} = unquote($7);
 939                 }
 940         }
 941         # 'c512b523472485aef4fff9e57b229d9d243c967f'
 942         #elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
 943         #       $res{'commit'} = $1;
 944         #}
 945
 946         return wantarray ? %res : \%res;
 947 }
 948
 949 ## ......................................................................
 950 ## parse to array of hashes functions
 951
 952 sub git_get_refs_list {
 953         my $ref_dir = shift;
 954         my @reflist;
 955
 956         my @refs;
 957         my $pfxlen = length("$projectroot/$project/$ref_dir");
 958         File::Find::find(sub {
 959                 return if (/^\./);
 960                 if (-f $_) {
 961                         push @refs, substr($File::Find::name, $pfxlen + 1);
 962                 }
 963         }, "$projectroot/$project/$ref_dir");
 964
 965         foreach my $ref_file (@refs) {
 966                 my $ref_id = git_get_hash_by_ref("$project/$ref_dir/$ref_file");
 967                 my $type = git_get_type($ref_id) || next;
 968                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
 969
 970                 push @reflist, \%ref_item;
 971         }
 972         # sort refs by age
 973         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
 974         return \@reflist;
 975 }
 976
 977 ## ----------------------------------------------------------------------
 978 ## filesystem-related functions
 979
 980 sub get_file_owner {
 981         my $path = shift;
 982
 983         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
 984         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 985         if (!defined $gcos) {
 986                 return undef;
 987         }
 988         my $owner = $gcos;
 989         $owner =~ s/[,;].*$//;
 990         return decode("utf8", $owner, Encode::FB_DEFAULT);
 991 }
 992
 993 ## ......................................................................
 994 ## mimetype related functions
 995
 996 sub mimetype_guess_file {
 997         my $filename = shift;
 998         my $mimemap = shift;
 999         -r $mimemap or return undef;
1000
1001         my %mimemap;
1002         open(MIME, $mimemap) or return undef;
1003         while (<MIME>) {
1004                 next if m/^#/; # skip comments
1005                 my ($mime, $exts) = split(/\t+/);
1006                 if (defined $exts) {
1007                         my @exts = split(/\s+/, $exts);
1008                         foreach my $ext (@exts) {
1009                                 $mimemap{$ext} = $mime;
1010                         }
1011                 }
1012         }
1013         close(MIME);
1014
1015         $filename =~ /\.(.*?)$/;
1016         return $mimemap{$1};
1017 }
1018
1019 sub mimetype_guess {
1020         my $filename = shift;
1021         my $mime;
1022         $filename =~ /\./ or return undef;
1023
1024         if ($mimetypes_file) {
1025                 my $file = $mimetypes_file;
1026                 if ($file !~ m!^/!) { # if it is relative path
1027                         # it is relative to project
1028                         $file = "$projectroot/$project/$file";
1029                 }
1030                 $mime = mimetype_guess_file($filename, $file);
1031         }
1032         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1033         return $mime;
1034 }
1035
1036 sub blob_mimetype {
1037         my $fd = shift;
1038         my $filename = shift;
1039
1040         if ($filename) {
1041                 my $mime = mimetype_guess($filename);
1042                 $mime and return $mime;
1043         }
1044
1045         # just in case
1046         return $default_blob_plain_mimetype unless $fd;
1047
1048         if (-T $fd) {
1049                 return 'text/plain' .
1050                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1051         } elsif (! $filename) {
1052                 return 'application/octet-stream';
1053         } elsif ($filename =~ m/\.png$/i) {
1054                 return 'image/png';
1055         } elsif ($filename =~ m/\.gif$/i) {
1056                 return 'image/gif';
1057         } elsif ($filename =~ m/\.jpe?g$/i) {
1058                 return 'image/jpeg';
1059         } else {
1060                 return 'application/octet-stream';
1061         }
1062 }
1063
1064 ## ======================================================================
1065 ## functions printing HTML: header, footer, error page
1066
1067 sub git_header_html {
1068         my $status = shift || "200 OK";
1069         my $expires = shift;
1070
1071         my $title = "$site_name git";
1072         if (defined $project) {
1073                 $title .= " - $project";
1074                 if (defined $action) {
1075                         $title .= "/$action";
1076                         if (defined $file_name) {
1077                                 $title .= " - $file_name";
1078                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1079                                         $title .= "/";
1080                                 }
1081                         }
1082                 }
1083         }
1084         my $content_type;
1085         # require explicit support from the UA if we are to send the page as
1086         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1087         # we have to do this because MSIE sometimes globs '*/*', pretending to
1088         # support xhtml+xml but choking when it gets what it asked for.
1089         if (defined $cgi->http('HTTP_ACCEPT') && $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ && $cgi->Accept('application/xhtml+xml') != 0) {
1090                 $content_type = 'application/xhtml+xml';
1091         } else {
1092                 $content_type = 'text/html';
1093         }
1094         print $cgi->header(-type=>$content_type, -charset => 'utf-8', -status=> $status, -expires => $expires);
1095         print <<EOF;
1096 <?xml version="1.0" encoding="utf-8"?>
1097 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1098 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1099 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1100 <!-- git core binaries version $git_version -->
1101 <head>
1102 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1103 <meta name="generator" content="gitweb/$version git/$git_version"/>
1104 <meta name="robots" content="index, nofollow"/>
1105 <title>$title</title>
1106 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
1107 EOF
1108         if (defined $project) {
1109                 printf('<link rel="alternate" title="%s log" '.
1110                        'href="%s" type="application/rss+xml"/>'."\n",
1111                        esc_param($project), href(action=>"rss"));
1112         }
1113
1114         print "</head>\n" .
1115               "<body>\n" .
1116               "<div class=\"page_header\">\n" .
1117               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1118               "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1119               "</a>\n";
1120         print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1121         if (defined $project) {
1122                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1123                 if (defined $action) {
1124                         print " / $action";
1125                 }
1126                 print "\n";
1127                 if (!defined $searchtext) {
1128                         $searchtext = "";
1129                 }
1130                 my $search_hash;
1131                 if (defined $hash_base) {
1132                         $search_hash = $hash_base;
1133                 } elsif (defined $hash) {
1134                         $search_hash = $hash;
1135                 } else {
1136                         $search_hash = "HEAD";
1137                 }
1138                 $cgi->param("a", "search");
1139                 $cgi->param("h", $search_hash);
1140                 print $cgi->startform(-method => "get", -action => $my_uri) .
1141                       "<div class=\"search\">\n" .
1142                       $cgi->hidden(-name => "p") . "\n" .
1143                       $cgi->hidden(-name => "a") . "\n" .
1144                       $cgi->hidden(-name => "h") . "\n" .
1145                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1146                       "</div>" .
1147                       $cgi->end_form() . "\n";
1148         }
1149         print "</div>\n";
1150 }
1151
1152 sub git_footer_html {
1153         print "<div class=\"page_footer\">\n";
1154         if (defined $project) {
1155                 my $descr = git_get_project_description($project);
1156                 if (defined $descr) {
1157                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1158                 }
1159                 print $cgi->a({-href => href(action=>"rss"), -class => "rss_logo"}, "RSS") . "\n";
1160         } else {
1161                 print $cgi->a({-href => href(action=>"opml"), -class => "rss_logo"}, "OPML") . "\n";
1162         }
1163         print "</div>\n" .
1164               "</body>\n" .
1165               "</html>";
1166 }
1167
1168 sub die_error {
1169         my $status = shift || "403 Forbidden";
1170         my $error = shift || "Malformed query, file missing or permission denied";
1171
1172         git_header_html($status);
1173         print "<div class=\"page_body\">\n" .
1174               "<br/><br/>\n" .
1175               "$status - $error\n" .
1176               "<br/>\n" .
1177               "</div>\n";
1178         git_footer_html();
1179         exit;
1180 }
1181
1182 ## ----------------------------------------------------------------------
1183 ## functions printing or outputting HTML: navigation
1184
1185 sub git_print_page_nav {
1186         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1187         $extra = '' if !defined $extra; # pager or formats
1188
1189         my @navs = qw(summary shortlog log commit commitdiff tree);
1190         if ($suppress) {
1191                 @navs = grep { $_ ne $suppress } @navs;
1192         }
1193
1194         my %arg = map { $_ => {action=>$_} } @navs;
1195         if (defined $head) {
1196                 for (qw(commit commitdiff)) {
1197                         $arg{$_}{hash} = $head;
1198                 }
1199                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1200                         for (qw(shortlog log)) {
1201                                 $arg{$_}{hash} = $head;
1202                         }
1203                 }
1204         }
1205         $arg{tree}{hash} = $treehead if defined $treehead;
1206         $arg{tree}{hash_base} = $treebase if defined $treebase;
1207
1208         print "<div class=\"page_nav\">\n" .
1209                 (join " | ",
1210                  map { $_ eq $current ?
1211                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1212                  } @navs);
1213         print "<br/>\n$extra<br/>\n" .
1214               "</div>\n";
1215 }
1216
1217 sub format_paging_nav {
1218         my ($action, $hash, $head, $page, $nrevs) = @_;
1219         my $paging_nav;
1220
1221
1222         if ($hash ne $head || $page) {
1223                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1224         } else {
1225                 $paging_nav .= "HEAD";
1226         }
1227
1228         if ($page > 0) {
1229                 $paging_nav .= " &sdot; " .
1230                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1231                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1232         } else {
1233                 $paging_nav .= " &sdot; prev";
1234         }
1235
1236         if ($nrevs >= (100 * ($page+1)-1)) {
1237                 $paging_nav .= " &sdot; " .
1238                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1239                                  -accesskey => "n", -title => "Alt-n"}, "next");
1240         } else {
1241                 $paging_nav .= " &sdot; next";
1242         }
1243
1244         return $paging_nav;
1245 }
1246
1247 ## ......................................................................
1248 ## functions printing or outputting HTML: div
1249
1250 sub git_print_header_div {
1251         my ($action, $title, $hash, $hash_base) = @_;
1252         my %args = ();
1253
1254         $args{action} = $action;
1255         $args{hash} = $hash if $hash;
1256         $args{hash_base} = $hash_base if $hash_base;
1257
1258         print "<div class=\"header\">\n" .
1259               $cgi->a({-href => href(%args), -class => "title"},
1260               $title ? $title : $action) .
1261               "\n</div>\n";
1262 }
1263
1264 sub git_print_page_path {
1265         my $name = shift;
1266         my $type = shift;
1267         my $hb = shift;
1268
1269         if (!defined $name) {
1270                 print "<div class=\"page_path\"><b>/</b></div>\n";
1271         } elsif (defined $type && $type eq 'blob') {
1272                 print "<div class=\"page_path\"><b>";
1273                 if (defined $hb) {
1274                         print $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hb, file_name=>$file_name)}, esc_html($name));
1275                 } else {
1276                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name)}, esc_html($name));
1277                 }
1278                 print "</b><br/></div>\n";
1279         } else {
1280                 print "<div class=\"page_path\"><b>" . esc_html($name) . "</b><br/></div>\n";
1281         }
1282 }
1283
1284 sub git_print_log {
1285         my $log = shift;
1286
1287         # remove leading empty lines
1288         while (defined $log->[0] && $log->[0] eq "") {
1289                 shift @$log;
1290         }
1291
1292         # print log
1293         my $signoff = 0;
1294         my $empty = 0;
1295         foreach my $line (@$log) {
1296                 # print only one empty line
1297                 # do not print empty line after signoff
1298                 if ($line eq "") {
1299                         next if ($empty || $signoff);
1300                         $empty = 1;
1301                 } else {
1302                         $empty = 0;
1303                 }
1304                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1305                         $signoff = 1;
1306                         print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1307                 } else {
1308                         $signoff = 0;
1309                         print format_log_line_html($line) . "<br/>\n";
1310                 }
1311         }
1312 }
1313
1314 sub git_print_simplified_log {
1315         my $log = shift;
1316         my $remove_title = shift;
1317
1318         shift @$log if $remove_title;
1319         # remove leading empty lines
1320         while (defined $log->[0] && $log->[0] eq "") {
1321                 shift @$log;
1322         }
1323
1324         # simplify and print log
1325         my $empty = 0;
1326         foreach my $line (@$log) {
1327                 # remove signoff lines
1328                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1329                         next;
1330                 }
1331                 # print only one empty line
1332                 if ($line eq "") {
1333                         next if $empty;
1334                         $empty = 1;
1335                 } else {
1336                         $empty = 0;
1337                 }
1338                 print format_log_line_html($line) . "<br/>\n";
1339         }
1340         # end with single empty line
1341         print "<br/>\n" unless $empty;
1342 }
1343
1344 ## ......................................................................
1345 ## functions printing large fragments of HTML
1346
1347 sub git_difftree_body {
1348         my ($difftree, $parent) = @_;
1349
1350         print "<div class=\"list_head\">\n";
1351         if ($#{$difftree} > 10) {
1352                 print(($#{$difftree} + 1) . " files changed:\n");
1353         }
1354         print "</div>\n";
1355
1356         print "<table class=\"diff_tree\">\n";
1357         my $alternate = 0;
1358         foreach my $line (@{$difftree}) {
1359                 my %diff = parse_difftree_raw_line($line);
1360
1361                 if ($alternate) {
1362                         print "<tr class=\"dark\">\n";
1363                 } else {
1364                         print "<tr class=\"light\">\n";
1365                 }
1366                 $alternate ^= 1;
1367
1368                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1369                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1370                 if ($diff{'to_mode'} ne ('0' x 6)) {
1371                         $to_mode_oct = oct $diff{'to_mode'};
1372                         if (S_ISREG($to_mode_oct)) { # only for regular file
1373                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1374                         }
1375                         $to_file_type = file_type($diff{'to_mode'});
1376                 }
1377                 if ($diff{'from_mode'} ne ('0' x 6)) {
1378                         $from_mode_oct = oct $diff{'from_mode'};
1379                         if (S_ISREG($to_mode_oct)) { # only for regular file
1380                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1381                         }
1382                         $from_file_type = file_type($diff{'from_mode'});
1383                 }
1384
1385                 if ($diff{'status'} eq "A") { # created
1386                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1387                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1388                         $mode_chng   .= "]</span>";
1389                         print "<td>" .
1390                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1391                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1392                                       -class => "list"}, esc_html($diff{'file'})) .
1393                               "</td>\n" .
1394                               "<td>$mode_chng</td>\n" .
1395                               "<td class=\"link\">" .
1396                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1397                                                      hash_base=>$hash, file_name=>$diff{'file'})},
1398                                       "blob") .
1399                               "</td>\n";
1400
1401                 } elsif ($diff{'status'} eq "D") { # deleted
1402                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1403                         print "<td>" .
1404                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1405                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1406                                        -class => "list"}, esc_html($diff{'file'})) .
1407                               "</td>\n" .
1408                               "<td>$mode_chng</td>\n" .
1409                               "<td class=\"link\">" .
1410                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1411                                                      hash_base=>$parent, file_name=>$diff{'file'})},
1412                                       "blob") .
1413                               " | " .
1414                               $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1415                                                      file_name=>$diff{'file'})},\
1416                                       "history") .
1417                               "</td>\n";
1418
1419                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1420                         my $mode_chnge = "";
1421                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1422                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1423                                 if ($from_file_type != $to_file_type) {
1424                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1425                                 }
1426                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1427                                         if ($from_mode_str && $to_mode_str) {
1428                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1429                                         } elsif ($to_mode_str) {
1430                                                 $mode_chnge .= " mode: $to_mode_str";
1431                                         }
1432                                 }
1433                                 $mode_chnge .= "]</span>\n";
1434                         }
1435                         print "<td>";
1436                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1437                                 print $cgi->a({-href => href(action=>"blobdiff", hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1438                                                              hash_base=>$hash, file_name=>$diff{'file'}),
1439                                               -class => "list"}, esc_html($diff{'file'}));
1440                         } else { # only mode changed
1441                                 print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1442                                                              hash_base=>$hash, file_name=>$diff{'file'}),
1443                                               -class => "list"}, esc_html($diff{'file'}));
1444                         }
1445                         print "</td>\n" .
1446                               "<td>$mode_chnge</td>\n" .
1447                               "<td class=\"link\">" .
1448                                 $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1449                                                        hash_base=>$hash, file_name=>$diff{'file'})},
1450                                         "blob");
1451                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1452                                 print " | " .
1453                                         $cgi->a({-href => href(action=>"blobdiff", hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1454                                                                hash_base=>$hash, file_name=>$diff{'file'})},
1455                                                 "diff");
1456                         }
1457                         print " | " .
1458                                 $cgi->a({-href => href(action=>"history",
1459                                                        hash_base=>$hash, file_name=>$diff{'file'})},
1460                                         "history");
1461                         print "</td>\n";
1462
1463                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1464                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1465                         my $nstatus = $status_name{$diff{'status'}};
1466                         my $mode_chng = "";
1467                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1468                                 # mode also for directories, so we cannot use $to_mode_str
1469                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1470                         }
1471                         print "<td>" .
1472                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1473                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1474                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1475                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1476                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1477                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1478                                       -class => "list"}, esc_html($diff{'from_file'})) .
1479                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1480                               "<td class=\"link\">" .
1481                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1482                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'})},
1483                                       "blob");
1484                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1485                                 print " | " .
1486                                         $cgi->a({-href => href(action=>"blobdiff", hash_base=>$hash,
1487                                                                hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1488                                                                file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1489                                                 "diff");
1490                         }
1491                         print "</td>\n";
1492
1493                 } # we should not encounter Unmerged (U) or Unknown (X) status
1494                 print "</tr>\n";
1495         }
1496         print "</table>\n";
1497 }
1498
1499 sub git_shortlog_body {
1500         # uses global variable $project
1501         my ($revlist, $from, $to, $refs, $extra) = @_;
1502
1503         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
1504         my $have_snapshot = (defined $ctype && defined $suffix);
1505
1506         $from = 0 unless defined $from;
1507         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1508
1509         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1510         my $alternate = 0;
1511         for (my $i = $from; $i <= $to; $i++) {
1512                 my $commit = $revlist->[$i];
1513                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1514                 my $ref = format_ref_marker($refs, $commit);
1515                 my %co = parse_commit($commit);
1516                 if ($alternate) {
1517                         print "<tr class=\"dark\">\n";
1518                 } else {
1519                         print "<tr class=\"light\">\n";
1520                 }
1521                 $alternate ^= 1;
1522                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1523                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1524                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1525                       "<td>";
1526                 print format_subject_html($co{'title'}, $co{'title_short'}, href(action=>"commit", hash=>$commit), $ref);
1527                 print "</td>\n" .
1528                       "<td class=\"link\">" .
1529                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1530                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
1531                 if ($have_snapshot) {
1532                         print " | " .  $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
1533                 }
1534                 print "</td>\n" .
1535                       "</tr>\n";
1536         }
1537         if (defined $extra) {
1538                 print "<tr>\n" .
1539                       "<td colspan=\"4\">$extra</td>\n" .
1540                       "</tr>\n";
1541         }
1542         print "</table>\n";
1543 }
1544
1545 sub git_history_body {
1546         # Warning: assumes constant type (blob or tree) during history
1547         my ($fd, $refs, $hash_base, $ftype, $extra) = @_;
1548
1549         print "<table class=\"history\" cellspacing=\"0\">\n";
1550         my $alternate = 0;
1551         while (my $line = <$fd>) {
1552                 if ($line !~ m/^([0-9a-fA-F]{40})/) {
1553                         next;
1554                 }
1555
1556                 my $commit = $1;
1557                 my %co = parse_commit($commit);
1558                 if (!%co) {
1559                         next;
1560                 }
1561
1562                 my $ref = format_ref_marker($refs, $commit);
1563
1564                 if ($alternate) {
1565                         print "<tr class=\"dark\">\n";
1566                 } else {
1567                         print "<tr class=\"light\">\n";
1568                 }
1569                 $alternate ^= 1;
1570                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1571                       # shortlog uses      chop_str($co{'author_name'}, 10)
1572                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
1573                       "<td>";
1574                 # originally git_history used chop_str($co{'title'}, 50)
1575                 print format_subject_html($co{'title'}, $co{'title_short'}, href(action=>"commit", hash=>$commit), $ref);
1576                 print "</td>\n" .
1577                       "<td class=\"link\">" .
1578                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1579                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
1580                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
1581
1582                 if ($ftype eq 'blob') {
1583                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
1584                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
1585                         if (defined $blob_current && defined $blob_parent &&
1586                                         $blob_current ne $blob_parent) {
1587                                 print " | " .
1588                                         $cgi->a({-href => href(action=>"blobdiff", hash=>$blob_current, hash_parent=>$blob_parent, hash_base=>$commit, file_name=>$file_name)},
1589                                                 "diff to current");
1590                         }
1591                 }
1592                 print "</td>\n" .
1593                       "</tr>\n";
1594         }
1595         if (defined $extra) {
1596                 print "<tr>\n" .
1597                       "<td colspan=\"4\">$extra</td>\n" .
1598                       "</tr>\n";
1599         }
1600         print "</table>\n";
1601 }
1602
1603 sub git_tags_body {
1604         # uses global variable $project
1605         my ($taglist, $from, $to, $extra) = @_;
1606         $from = 0 unless defined $from;
1607         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1608
1609         print "<table class=\"tags\" cellspacing=\"0\">\n";
1610         my $alternate = 0;
1611         for (my $i = $from; $i <= $to; $i++) {
1612                 my $entry = $taglist->[$i];
1613                 my %tag = %$entry;
1614                 my $comment_lines = $tag{'comment'};
1615                 my $comment = shift @$comment_lines;
1616                 my $comment_short;
1617                 if (defined $comment) {
1618                         $comment_short = chop_str($comment, 30, 5);
1619                 }
1620                 if ($alternate) {
1621                         print "<tr class=\"dark\">\n";
1622                 } else {
1623                         print "<tr class=\"light\">\n";
1624                 }
1625                 $alternate ^= 1;
1626                 print "<td><i>$tag{'age'}</i></td>\n" .
1627                       "<td>" .
1628                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
1629                                -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1630                       "</td>\n" .
1631                       "<td>";
1632                 if (defined $comment) {
1633                         print format_subject_html($comment, $comment_short, href(action=>"tag", hash=>$tag{'id'}));
1634                 }
1635                 print "</td>\n" .
1636                       "<td class=\"selflink\">";
1637                 if ($tag{'type'} eq "tag") {
1638                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
1639                 } else {
1640                         print "&nbsp;";
1641                 }
1642                 print "</td>\n" .
1643                       "<td class=\"link\">" . " | " .
1644                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
1645                 if ($tag{'reftype'} eq "commit") {
1646                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
1647                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
1648                 } elsif ($tag{'reftype'} eq "blob") {
1649                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
1650                 }
1651                 print "</td>\n" .
1652                       "</tr>";
1653         }
1654         if (defined $extra) {
1655                 print "<tr>\n" .
1656                       "<td colspan=\"5\">$extra</td>\n" .
1657                       "</tr>\n";
1658         }
1659         print "</table>\n";
1660 }
1661
1662 sub git_heads_body {
1663         # uses global variable $project
1664         my ($taglist, $head, $from, $to, $extra) = @_;
1665         $from = 0 unless defined $from;
1666         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1667
1668         print "<table class=\"heads\" cellspacing=\"0\">\n";
1669         my $alternate = 0;
1670         for (my $i = $from; $i <= $to; $i++) {
1671                 my $entry = $taglist->[$i];
1672                 my %tag = %$entry;
1673                 my $curr = $tag{'id'} eq $head;
1674                 if ($alternate) {
1675                         print "<tr class=\"dark\">\n";
1676                 } else {
1677                         print "<tr class=\"light\">\n";
1678                 }
1679                 $alternate ^= 1;
1680                 print "<td><i>$tag{'age'}</i></td>\n" .
1681                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
1682                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
1683                                -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1684                       "</td>\n" .
1685                       "<td class=\"link\">" .
1686                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
1687                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
1688                       "</td>\n" .
1689                       "</tr>";
1690         }
1691         if (defined $extra) {
1692                 print "<tr>\n" .
1693                       "<td colspan=\"3\">$extra</td>\n" .
1694                       "</tr>\n";
1695         }
1696         print "</table>\n";
1697 }
1698
1699 ## ----------------------------------------------------------------------
1700 ## functions printing large fragments, format as one of arguments
1701
1702 sub git_diff_print {
1703         my $from = shift;
1704         my $from_name = shift;
1705         my $to = shift;
1706         my $to_name = shift;
1707         my $format = shift || "html";
1708
1709         my $from_tmp = "/dev/null";
1710         my $to_tmp = "/dev/null";
1711         my $pid = $$;
1712
1713         # create tmp from-file
1714         if (defined $from) {
1715                 $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
1716                 open my $fd2, "> $from_tmp";
1717                 open my $fd, "-|", $GIT, "cat-file", "blob", $from;
1718                 my @file = <$fd>;
1719                 print $fd2 @file;
1720                 close $fd2;
1721                 close $fd;
1722         }
1723
1724         # create tmp to-file
1725         if (defined $to) {
1726                 $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
1727                 open my $fd2, "> $to_tmp";
1728                 open my $fd, "-|", $GIT, "cat-file", "blob", $to;
1729                 my @file = <$fd>;
1730                 print $fd2 @file;
1731                 close $fd2;
1732                 close $fd;
1733         }
1734
1735         open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
1736         if ($format eq "plain") {
1737                 undef $/;
1738                 print <$fd>;
1739                 $/ = "\n";
1740         } else {
1741                 while (my $line = <$fd>) {
1742                         chomp $line;
1743                         my $char = substr($line, 0, 1);
1744                         my $diff_class = "";
1745                         if ($char eq '+') {
1746                                 $diff_class = " add";
1747                         } elsif ($char eq "-") {
1748                                 $diff_class = " rem";
1749                         } elsif ($char eq "@") {
1750                                 $diff_class = " chunk_header";
1751                         } elsif ($char eq "\\") {
1752                                 # skip errors
1753                                 next;
1754                         }
1755                         $line = untabify($line);
1756                         print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
1757                 }
1758         }
1759         close $fd;
1760
1761         if (defined $from) {
1762                 unlink($from_tmp);
1763         }
1764         if (defined $to) {
1765                 unlink($to_tmp);
1766         }
1767 }
1768
1769
1770 ## ======================================================================
1771 ## ======================================================================
1772 ## actions
1773
1774 sub git_project_list {
1775         my $order = $cgi->param('o');
1776         if (defined $order && $order !~ m/project|descr|owner|age/) {
1777                 die_error(undef, "Unknown order parameter");
1778         }
1779
1780         my @list = git_get_projects_list();
1781         my @projects;
1782         if (!@list) {
1783                 die_error(undef, "No projects found");
1784         }
1785         foreach my $pr (@list) {
1786                 my $head = git_get_head_hash($pr->{'path'});
1787                 if (!defined $head) {
1788                         next;
1789                 }
1790                 $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
1791                 my %co = parse_commit($head);
1792                 if (!%co) {
1793                         next;
1794                 }
1795                 $pr->{'commit'} = \%co;
1796                 if (!defined $pr->{'descr'}) {
1797                         my $descr = git_get_project_description($pr->{'path'}) || "";
1798                         $pr->{'descr'} = chop_str($descr, 25, 5);
1799                 }
1800                 if (!defined $pr->{'owner'}) {
1801                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
1802                 }
1803                 push @projects, $pr;
1804         }
1805
1806         git_header_html();
1807         if (-f $home_text) {
1808                 print "<div class=\"index_include\">\n";
1809                 open (my $fd, $home_text);
1810                 print <$fd>;
1811                 close $fd;
1812                 print "</div>\n";
1813         }
1814         print "<table class=\"project_list\">\n" .
1815               "<tr>\n";
1816         $order ||= "project";
1817         if ($order eq "project") {
1818                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
1819                 print "<th>Project</th>\n";
1820         } else {
1821                 print "<th>" .
1822                       $cgi->a({-href => "$my_uri?" . esc_param("o=project"),
1823                                -class => "header"}, "Project") .
1824                       "</th>\n";
1825         }
1826         if ($order eq "descr") {
1827                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
1828                 print "<th>Description</th>\n";
1829         } else {
1830                 print "<th>" .
1831                       $cgi->a({-href => "$my_uri?" . esc_param("o=descr"),
1832                                -class => "header"}, "Description") .
1833                       "</th>\n";
1834         }
1835         if ($order eq "owner") {
1836                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
1837                 print "<th>Owner</th>\n";
1838         } else {
1839                 print "<th>" .
1840                       $cgi->a({-href => "$my_uri?" . esc_param("o=owner"),
1841                                -class => "header"}, "Owner") .
1842                       "</th>\n";
1843         }
1844         if ($order eq "age") {
1845                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
1846                 print "<th>Last Change</th>\n";
1847         } else {
1848                 print "<th>" .
1849                       $cgi->a({-href => "$my_uri?" . esc_param("o=age"),
1850                                -class => "header"}, "Last Change") .
1851                       "</th>\n";
1852         }
1853         print "<th></th>\n" .
1854               "</tr>\n";
1855         my $alternate = 0;
1856         foreach my $pr (@projects) {
1857                 if ($alternate) {
1858                         print "<tr class=\"dark\">\n";
1859                 } else {
1860                         print "<tr class=\"light\">\n";
1861                 }
1862                 $alternate ^= 1;
1863                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
1864                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
1865                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
1866                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
1867                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
1868                       $pr->{'commit'}{'age_string'} . "</td>\n" .
1869                       "<td class=\"link\">" .
1870                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
1871                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
1872                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") .
1873                       "</td>\n" .
1874                       "</tr>\n";
1875         }
1876         print "</table>\n";
1877         git_footer_html();
1878 }
1879
1880 sub git_summary {
1881         my $descr = git_get_project_description($project) || "none";
1882         my $head = git_get_head_hash($project);
1883         my %co = parse_commit($head);
1884         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
1885
1886         my $owner = git_get_project_owner($project);
1887
1888         my $refs = git_get_references();
1889         git_header_html();
1890         git_print_page_nav('summary','', $head);
1891
1892         print "<div class=\"title\">&nbsp;</div>\n";
1893         print "<table cellspacing=\"0\">\n" .
1894               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
1895               "<tr><td>owner</td><td>$owner</td></tr>\n" .
1896               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
1897         # use per project git URL list in $projectroot/$project/cloneurl
1898         # or make project git URL from git base URL and project name
1899         my $url_tag = "URL";
1900         my @url_list = git_get_project_url_list($project);
1901         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
1902         foreach my $git_url (@url_list) {
1903                 next unless $git_url;
1904                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
1905                 $url_tag = "";
1906         }
1907         print "</table>\n";
1908
1909         open my $fd, "-|", $GIT, "rev-list", "--max-count=17", git_get_head_hash($project)
1910                 or die_error(undef, "Open git-rev-list failed");
1911         my @revlist = map { chomp; $_ } <$fd>;
1912         close $fd;
1913         git_print_header_div('shortlog');
1914         git_shortlog_body(\@revlist, 0, 15, $refs,
1915                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
1916
1917         my $taglist = git_get_refs_list("refs/tags");
1918         if (defined @$taglist) {
1919                 git_print_header_div('tags');
1920                 git_tags_body($taglist, 0, 15,
1921                               $cgi->a({-href => href(action=>"tags")}, "..."));
1922         }
1923
1924         my $headlist = git_get_refs_list("refs/heads");
1925         if (defined @$headlist) {
1926                 git_print_header_div('heads');
1927                 git_heads_body($headlist, $head, 0, 15,
1928                                $cgi->a({-href => href(action=>"heads")}, "..."));
1929         }
1930
1931         git_footer_html();
1932 }
1933
1934 sub git_tag {
1935         my $head = git_get_head_hash($project);
1936         git_header_html();
1937         git_print_page_nav('','', $head,undef,$head);
1938         my %tag = parse_tag($hash);
1939         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
1940         print "<div class=\"title_text\">\n" .
1941               "<table cellspacing=\"0\">\n" .
1942               "<tr>\n" .
1943               "<td>object</td>\n" .
1944               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})}, $tag{'object'}) . "</td>\n" .
1945               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})}, $tag{'type'}) . "</td>\n" .
1946               "</tr>\n";
1947         if (defined($tag{'author'})) {
1948                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
1949                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
1950                 print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
1951         }
1952         print "</table>\n\n" .
1953               "</div>\n";
1954         print "<div class=\"page_body\">";
1955         my $comment = $tag{'comment'};
1956         foreach my $line (@$comment) {
1957                 print esc_html($line) . "<br/>\n";
1958         }
1959         print "</div>\n";
1960         git_footer_html();
1961 }
1962
1963 sub git_blame2 {
1964         my $fd;
1965         my $ftype;
1966
1967         if (!gitweb_check_feature('blame')) {
1968                 die_error('403 Permission denied', "Permission denied");
1969         }
1970         die_error('404 Not Found', "File name not defined") if (!$file_name);
1971         $hash_base ||= git_get_head_hash($project);
1972         die_error(undef, "Couldn't find base commit") unless ($hash_base);
1973         my %co = parse_commit($hash_base)
1974                 or die_error(undef, "Reading commit failed");
1975         if (!defined $hash) {
1976                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1977                         or die_error(undef, "Error looking up file");
1978         }
1979         $ftype = git_get_type($hash);
1980         if ($ftype !~ "blob") {
1981                 die_error("400 Bad Request", "Object is not a blob");
1982         }
1983         open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
1984                 or die_error(undef, "Open git-blame failed");
1985         git_header_html();
1986         my $formats_nav =
1987                 $cgi->a({-href => href(action=>"blobl", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blob") .
1988                 " | " . $cgi->a({-href => href(action=>"blame", file_name=>$file_name)}, "head");
1989         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1990         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
1991         git_print_page_path($file_name, $ftype, $hash_base);
1992         my @rev_color = (qw(light2 dark2));
1993         my $num_colors = scalar(@rev_color);
1994         my $current_color = 0;
1995         my $last_rev;
1996         print "<div class=\"page_body\">\n";
1997         print "<table class=\"blame\">\n";
1998         print "<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n";
1999         while (<$fd>) {
2000                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2001                 my $full_rev = $1;
2002                 my $rev = substr($full_rev, 0, 8);
2003                 my $lineno = $2;
2004                 my $data = $3;
2005
2006                 if (!defined $last_rev) {
2007                         $last_rev = $full_rev;
2008                 } elsif ($last_rev ne $full_rev) {
2009                         $last_rev = $full_rev;
2010                         $current_color = ++$current_color % $num_colors;
2011                 }
2012                 print "<tr class=\"$rev_color[$current_color]\">\n";
2013                 print "<td class=\"sha1\">" .
2014                         $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)}, esc_html($rev)) . "</td>\n";
2015                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" . esc_html($lineno) . "</a></td>\n";
2016                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2017                 print "</tr>\n";
2018         }
2019         print "</table>\n";
2020         print "</div>";
2021         close $fd or print "Reading blob failed\n";
2022         git_footer_html();
2023 }
2024
2025 sub git_blame {
2026         my $fd;
2027
2028         if (!gitweb_check_feature('blame')) {
2029                 die_error('403 Permission denied', "Permission denied");
2030         }
2031         die_error('404 Not Found', "File name not defined") if (!$file_name);
2032         $hash_base ||= git_get_head_hash($project);
2033         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2034         my %co = parse_commit($hash_base)
2035                 or die_error(undef, "Reading commit failed");
2036         if (!defined $hash) {
2037                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2038                         or die_error(undef, "Error lookup file");
2039         }
2040         open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2041                 or die_error(undef, "Open git-annotate failed");
2042         git_header_html();
2043         my $formats_nav =
2044                 $cgi->a({-href => href(action=>"blobl", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blob") .
2045                 " | " . $cgi->a({-href => href(action=>"blame", file_name=>$file_name)}, "head");
2046         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2047         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2048         git_print_page_path($file_name, 'blob', $hash_base);
2049         print "<div class=\"page_body\">\n";
2050         print <<HTML;
2051 <table class="blame">
2052   <tr>
2053     <th>Commit</th>
2054     <th>Age</th>
2055     <th>Author</th>
2056     <th>Line</th>
2057     <th>Data</th>
2058   </tr>
2059 HTML
2060         my @line_class = (qw(light dark));
2061         my $line_class_len = scalar (@line_class);
2062         my $line_class_num = $#line_class;
2063         while (my $line = <$fd>) {
2064                 my $long_rev;
2065                 my $short_rev;
2066                 my $author;
2067                 my $time;
2068                 my $lineno;
2069                 my $data;
2070                 my $age;
2071                 my $age_str;
2072                 my $age_class;
2073
2074                 chomp $line;
2075                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2076
2077                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
2078                         $long_rev = $1;
2079                         $author   = $2;
2080                         $time     = $3;
2081                         $lineno   = $4;
2082                         $data     = $5;
2083                 } else {
2084                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2085                         next;
2086                 }
2087                 $short_rev  = substr ($long_rev, 0, 8);
2088                 $age        = time () - $time;
2089                 $age_str    = age_string ($age);
2090                 $age_str    =~ s/ /&nbsp;/g;
2091                 $age_class  = age_class($age);
2092                 $author     = esc_html ($author);
2093                 $author     =~ s/ /&nbsp;/g;
2094
2095                 $data = untabify($data);
2096                 $data = esc_html ($data);
2097
2098                 print <<HTML;
2099   <tr class="$line_class[$line_class_num]">
2100     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2101     <td class="$age_class">$age_str</td>
2102     <td>$author</td>
2103     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2104     <td class="pre">$data</td>
2105   </tr>
2106 HTML
2107         } # while (my $line = <$fd>)
2108         print "</table>\n\n";
2109         close $fd or print "Reading blob failed.\n";
2110         print "</div>";
2111         git_footer_html();
2112 }
2113
2114 sub git_tags {
2115         my $head = git_get_head_hash($project);
2116         git_header_html();
2117         git_print_page_nav('','', $head,undef,$head);
2118         git_print_header_div('summary', $project);
2119
2120         my $taglist = git_get_refs_list("refs/tags");
2121         if (defined @$taglist) {
2122                 git_tags_body($taglist);
2123         }
2124         git_footer_html();
2125 }
2126
2127 sub git_heads {
2128         my $head = git_get_head_hash($project);
2129         git_header_html();
2130         git_print_page_nav('','', $head,undef,$head);
2131         git_print_header_div('summary', $project);
2132
2133         my $taglist = git_get_refs_list("refs/heads");
2134         if (defined @$taglist) {
2135                 git_heads_body($taglist, $head);
2136         }
2137         git_footer_html();
2138 }
2139
2140 sub git_blob_plain {
2141         if (!defined $hash) {
2142                 if (defined $file_name) {
2143                         my $base = $hash_base || git_get_head_hash($project);
2144                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2145                                 or die_error(undef, "Error lookup file");
2146                 } else {
2147                         die_error(undef, "No file name defined");
2148                 }
2149         }
2150         my $type = shift;
2151         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
2152                 or die_error(undef, "Couldn't cat $file_name, $hash");
2153
2154         $type ||= blob_mimetype($fd, $file_name);
2155
2156         # save as filename, even when no $file_name is given
2157         my $save_as = "$hash";
2158         if (defined $file_name) {
2159                 $save_as = $file_name;
2160         } elsif ($type =~ m/^text\//) {
2161                 $save_as .= '.txt';
2162         }
2163
2164         print $cgi->header(-type => "$type", '-content-disposition' => "inline; filename=\"$save_as\"");
2165         undef $/;
2166         binmode STDOUT, ':raw';
2167         print <$fd>;
2168         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2169         $/ = "\n";
2170         close $fd;
2171 }
2172
2173 sub git_blob {
2174         if (!defined $hash) {
2175                 if (defined $file_name) {
2176                         my $base = $hash_base || git_get_head_hash($project);
2177                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2178                                 or die_error(undef, "Error lookup file");
2179                 } else {
2180                         die_error(undef, "No file name defined");
2181                 }
2182         }
2183         my $have_blame = gitweb_check_feature('blame');
2184         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
2185                 or die_error(undef, "Couldn't cat $file_name, $hash");
2186         my $mimetype = blob_mimetype($fd, $file_name);
2187         if ($mimetype !~ m/^text\//) {
2188                 close $fd;
2189                 return git_blob_plain($mimetype);
2190         }
2191         git_header_html();
2192         my $formats_nav = '';
2193         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2194                 if (defined $file_name) {
2195                         if ($have_blame) {
2196                                 $formats_nav .= $cgi->a({-href => href(action=>"blame", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blame") . " | ";
2197                         }
2198                         $formats_nav .=
2199                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash, file_name=>$file_name)}, "plain") .
2200                                 " | " . $cgi->a({-href => href(action=>"blob", hash_base=>"HEAD", file_name=>$file_name)}, "head");
2201                 } else {
2202                         $formats_nav .= $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2203                 }
2204                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2205                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2206         } else {
2207                 print "<div class=\"page_nav\">\n" .
2208                       "<br/><br/></div>\n" .
2209                       "<div class=\"title\">$hash</div>\n";
2210         }
2211         git_print_page_path($file_name, "blob", $hash_base);
2212         print "<div class=\"page_body\">\n";
2213         my $nr;
2214         while (my $line = <$fd>) {
2215                 chomp $line;
2216                 $nr++;
2217                 $line = untabify($line);
2218                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
2219         }
2220         close $fd or print "Reading blob failed.\n";
2221         print "</div>";
2222         git_footer_html();
2223 }
2224
2225 sub git_tree {
2226         if (!defined $hash) {
2227                 $hash = git_get_head_hash($project);
2228                 if (defined $file_name) {
2229                         my $base = $hash_base || $hash;
2230                         $hash = git_get_hash_by_path($base, $file_name, "tree");
2231                 }
2232                 if (!defined $hash_base) {
2233                         $hash_base = $hash;
2234                 }
2235         }
2236         $/ = "\0";
2237         open my $fd, "-|", $GIT, "ls-tree", '-z', $hash
2238                 or die_error(undef, "Open git-ls-tree failed");
2239         my @entries = map { chomp; $_ } <$fd>;
2240         close $fd or die_error(undef, "Reading tree failed");
2241         $/ = "\n";
2242
2243         my $refs = git_get_references();
2244         my $ref = format_ref_marker($refs, $hash_base);
2245         git_header_html();
2246         my %base_key = ();
2247         my $base = "";
2248         my $have_blame = gitweb_check_feature('blame');
2249         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2250                 $base_key{hash_base} = $hash_base;
2251                 git_print_page_nav('tree','', $hash_base);
2252                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2253         } else {
2254                 print "<div class=\"page_nav\">\n";
2255                 print "<br/><br/></div>\n";
2256                 print "<div class=\"title\">$hash</div>\n";
2257         }
2258         if (defined $file_name) {
2259                 $base = esc_html("$file_name/");
2260         }
2261         git_print_page_path($file_name, 'tree', $hash_base);
2262         print "<div class=\"page_body\">\n";
2263         print "<table cellspacing=\"0\">\n";
2264         my $alternate = 0;
2265         foreach my $line (@entries) {
2266                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
2267                 $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
2268                 my $t_mode = $1;
2269                 my $t_type = $2;
2270                 my $t_hash = $3;
2271                 my $t_name = validate_input($4);
2272                 if ($alternate) {
2273                         print "<tr class=\"dark\">\n";
2274                 } else {
2275                         print "<tr class=\"light\">\n";
2276                 }
2277                 $alternate ^= 1;
2278                 print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
2279                 if ($t_type eq "blob") {
2280                         print "<td class=\"list\">" .
2281                               $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key), -class => "list"}, esc_html($t_name)) .
2282                               "</td>\n" .
2283                               "<td class=\"link\">" .
2284                               $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, "blob");
2285                         if ($have_blame) {
2286                                 print " | " . $cgi->a({-href => href(action=>"blame", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, "blame");
2287                         }
2288                         print " | " . $cgi->a({-href => href(action=>"history", hash=>$t_hash, hash_base=>$hash_base, file_name=>"$base$t_name")}, "history") .
2289                               " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$t_hash, file_name=>"$base$t_name")}, "raw") .
2290                               "</td>\n";
2291                 } elsif ($t_type eq "tree") {
2292                         print "<td class=\"list\">" .
2293                               $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, esc_html($t_name)) .
2294                               "</td>\n" .
2295                               "<td class=\"link\">" .
2296                               $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, "tree") .
2297                               " | " . $cgi->a({-href => href(action=>"history", hash_base=>$hash_base, file_name=>"$base$t_name")}, "history") .
2298                               "</td>\n";
2299                 }
2300                 print "</tr>\n";
2301         }
2302         print "</table>\n" .
2303               "</div>";
2304         git_footer_html();
2305 }
2306
2307 sub git_snapshot {
2308
2309         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2310         my $have_snapshot = (defined $ctype && defined $suffix);
2311         if (!$have_snapshot) {
2312                 die_error('403 Permission denied', "Permission denied");
2313         }
2314
2315         if (!defined $hash) {
2316                 $hash = git_get_head_hash($project);
2317         }
2318
2319         my $filename = basename($project) . "-$hash.tar.$suffix";
2320
2321         print $cgi->header(-type => 'application/x-tar',
2322                            -content-encoding => $ctype,
2323                            '-content-disposition' =>
2324                            "inline; filename=\"$filename\"",
2325                            -status => '200 OK');
2326
2327         open my $fd, "-|", "$GIT tar-tree $hash \'$project\' | $command" or
2328                 die_error(undef, "Execute git-tar-tree failed.");
2329         binmode STDOUT, ':raw';
2330         print <$fd>;
2331         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2332         close $fd;
2333
2334 }
2335
2336 sub git_log {
2337         my $head = git_get_head_hash($project);
2338         if (!defined $hash) {
2339                 $hash = $head;
2340         }
2341         if (!defined $page) {
2342                 $page = 0;
2343         }
2344         my $refs = git_get_references();
2345
2346         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2347         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2348                 or die_error(undef, "Open git-rev-list failed");
2349         my @revlist = map { chomp; $_ } <$fd>;
2350         close $fd;
2351
2352         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2353
2354         git_header_html();
2355         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2356
2357         if (!@revlist) {
2358                 my %co = parse_commit($hash);
2359
2360                 git_print_header_div('summary', $project);
2361                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2362         }
2363         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2364                 my $commit = $revlist[$i];
2365                 my $ref = format_ref_marker($refs, $commit);
2366                 my %co = parse_commit($commit);
2367                 next if !%co;
2368                 my %ad = parse_date($co{'author_epoch'});
2369                 git_print_header_div('commit',
2370                                "<span class=\"age\">$co{'age_string'}</span>" .
2371                                esc_html($co{'title'}) . $ref,
2372                                $commit);
2373                 print "<div class=\"title_text\">\n" .
2374                       "<div class=\"log_link\">\n" .
2375                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2376                       " | " . $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2377                       "<br/>\n" .
2378                       "</div>\n" .
2379                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2380                       "</div>\n";
2381
2382                 print "<div class=\"log_body\">\n";
2383                 git_print_simplified_log($co{'comment'});
2384                 print "</div>\n";
2385         }
2386         git_footer_html();
2387 }
2388
2389 sub git_commit {
2390         my %co = parse_commit($hash);
2391         if (!%co) {
2392                 die_error(undef, "Unknown commit object");
2393         }
2394         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2395         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2396
2397         my $parent = $co{'parent'};
2398         if (!defined $parent) {
2399                 $parent = "--root";
2400         }
2401         open my $fd, "-|", $GIT, "diff-tree", '-r', '-M', $parent, $hash
2402                 or die_error(undef, "Open git-diff-tree failed");
2403         my @difftree = map { chomp; $_ } <$fd>;
2404         close $fd or die_error(undef, "Reading git-diff-tree failed");
2405
2406         # non-textual hash id's can be cached
2407         my $expires;
2408         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2409                 $expires = "+1d";
2410         }
2411         my $refs = git_get_references();
2412         my $ref = format_ref_marker($refs, $co{'id'});
2413
2414         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2415         my $have_snapshot = (defined $ctype && defined $suffix);
2416
2417         my $formats_nav = '';
2418         if (defined $file_name && defined $co{'parent'}) {
2419                 my $parent = $co{'parent'};
2420                 $formats_nav .= $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)}, "blame");
2421         }
2422         git_header_html(undef, $expires);
2423         git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2424                      $hash, $co{'tree'}, $hash,
2425                      $formats_nav);
2426
2427         if (defined $co{'parent'}) {
2428                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2429         } else {
2430                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2431         }
2432         print "<div class=\"title_text\">\n" .
2433               "<table cellspacing=\"0\">\n";
2434         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2435               "<tr>" .
2436               "<td></td><td> $ad{'rfc2822'}";
2437         if ($ad{'hour_local'} < 6) {
2438                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2439         } else {
2440                 printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2441         }
2442         print "</td>" .
2443               "</tr>\n";
2444         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2445         print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
2446         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2447         print "<tr>" .
2448               "<td>tree</td>" .
2449               "<td class=\"sha1\">" .
2450               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash), class => "list"}, $co{'tree'}) .
2451               "</td>" .
2452               "<td class=\"link\">" . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)}, "tree");
2453         if ($have_snapshot) {
2454                 print " | " .  $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
2455         }
2456         print "</td>" .
2457               "</tr>\n";
2458         my $parents = $co{'parents'};
2459         foreach my $par (@$parents) {
2460                 print "<tr>" .
2461                       "<td>parent</td>" .
2462                       "<td class=\"sha1\">" . $cgi->a({-href => href(action=>"commit", hash=>$par), class => "list"}, $par) . "</td>" .
2463                       "<td class=\"link\">" .
2464                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2465                       " | " . $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "commitdiff") .
2466                       "</td>" .
2467                       "</tr>\n";
2468         }
2469         print "</table>".
2470               "</div>\n";
2471
2472         print "<div class=\"page_body\">\n";
2473         git_print_log($co{'comment'});
2474         print "</div>\n";
2475
2476         git_difftree_body(\@difftree, $parent);
2477
2478         git_footer_html();
2479 }
2480
2481 sub git_blobdiff {
2482         mkdir($git_temp, 0700);
2483         git_header_html();
2484         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2485                 my $formats_nav =
2486                         $cgi->a({-href => href(action=>"blobdiff_plain", hash=>$hash, hash_parent=>$hash_parent)}, "plain");
2487                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2488                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2489         } else {
2490                 print "<div class=\"page_nav\">\n" .
2491                       "<br/><br/></div>\n" .
2492                       "<div class=\"title\">$hash vs $hash_parent</div>\n";
2493         }
2494         git_print_page_path($file_name, "blob", $hash_base);
2495         print "<div class=\"page_body\">\n" .
2496               "<div class=\"diff_info\">blob:" .
2497               $cgi->a({-href => href(action=>"blob", hash=>$hash_parent, hash_base=>$hash_base, file_name=>($file_parent || $file_name))}, $hash_parent) .
2498               " -> blob:" .
2499               $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, $hash) .
2500               "</div>\n";
2501         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
2502         print "</div>";
2503         git_footer_html();
2504 }
2505
2506 sub git_blobdiff_plain {
2507         mkdir($git_temp, 0700);
2508         print $cgi->header(-type => "text/plain", -charset => 'utf-8');
2509         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
2510 }
2511
2512 sub git_commitdiff {
2513         mkdir($git_temp, 0700);
2514         my %co = parse_commit($hash);
2515         if (!%co) {
2516                 die_error(undef, "Unknown commit object");
2517         }
2518         if (!defined $hash_parent) {
2519                 $hash_parent = $co{'parent'} || '--root';
2520         }
2521         open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2522                 or die_error(undef, "Open git-diff-tree failed");
2523         my @difftree = map { chomp; $_ } <$fd>;
2524         close $fd or die_error(undef, "Reading git-diff-tree failed");
2525
2526         # non-textual hash id's can be cached
2527         my $expires;
2528         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2529                 $expires = "+1d";
2530         }
2531         my $refs = git_get_references();
2532         my $ref = format_ref_marker($refs, $co{'id'});
2533         my $formats_nav =
2534                 $cgi->a({-href => href(action=>"commitdiff_plain", hash=>$hash, hash_parent=>$hash_parent)}, "plain");
2535         git_header_html(undef, $expires);
2536         git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
2537         git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
2538         print "<div class=\"page_body\">\n";
2539         git_print_simplified_log($co{'comment'}, 1); # skip title
2540         print "<br/>\n";
2541         foreach my $line (@difftree) {
2542                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2543                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2544                 if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2545                         next;
2546                 }
2547                 my $from_mode = $1;
2548                 my $to_mode = $2;
2549                 my $from_id = $3;
2550                 my $to_id = $4;
2551                 my $status = $5;
2552                 my $file = validate_input(unquote($6));
2553                 if ($status eq "A") {
2554                         print "<div class=\"diff_info\">" . file_type($to_mode) . ":" .
2555                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, $to_id) . "(new)" .
2556                               "</div>\n";
2557                         git_diff_print(undef, "/dev/null", $to_id, "b/$file");
2558                 } elsif ($status eq "D") {
2559                         print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
2560                               $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$hash_parent, file_name=>$file)}, $from_id) . "(deleted)" .
2561                               "</div>\n";
2562                         git_diff_print($from_id, "a/$file", undef, "/dev/null");
2563                 } elsif ($status eq "M") {
2564                         if ($from_id ne $to_id) {
2565                                 print "<div class=\"diff_info\">" .
2566                                       file_type($from_mode) . ":" .
2567                                       $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$hash_parent, file_name=>$file)}, $from_id) .
2568                                       " -> " .
2569                                       file_type($to_mode) . ":" .
2570                                       $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, $to_id);
2571                                 print "</div>\n";
2572                                 git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
2573                         }
2574                 }
2575         }
2576         print "<br/>\n" .
2577               "</div>";
2578         git_footer_html();
2579 }
2580
2581 sub git_commitdiff_plain {
2582         mkdir($git_temp, 0700);
2583         my %co = parse_commit($hash);
2584         if (!%co) {
2585                 die_error(undef, "Unknown commit object");
2586         }
2587         if (!defined $hash_parent) {
2588                 $hash_parent = $co{'parent'} || '--root';
2589         }
2590         open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2591                 or die_error(undef, "Open git-diff-tree failed");
2592         my @difftree = map { chomp; $_ } <$fd>;
2593         close $fd or die_error(undef, "Reading diff-tree failed");
2594
2595         # try to figure out the next tag after this commit
2596         my $tagname;
2597         my $refs = git_get_references("tags");
2598         open $fd, "-|", $GIT, "rev-list", "HEAD";
2599         my @commits = map { chomp; $_ } <$fd>;
2600         close $fd;
2601         foreach my $commit (@commits) {
2602                 if (defined $refs->{$commit}) {
2603                         $tagname = $refs->{$commit}
2604                 }
2605                 if ($commit eq $hash) {
2606                         last;
2607                 }
2608         }
2609
2610         print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
2611         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2612         my $comment = $co{'comment'};
2613         print "From: $co{'author'}\n" .
2614               "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
2615               "Subject: $co{'title'}\n";
2616         if (defined $tagname) {
2617                 print "X-Git-Tag: $tagname\n";
2618         }
2619         print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
2620               "\n";
2621
2622         foreach my $line (@$comment) {;
2623                 print "$line\n";
2624         }
2625         print "---\n\n";
2626
2627         foreach my $line (@difftree) {
2628                 if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2629                         next;
2630                 }
2631                 my $from_id = $3;
2632                 my $to_id = $4;
2633                 my $status = $5;
2634                 my $file = $6;
2635                 if ($status eq "A") {
2636                         git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
2637                 } elsif ($status eq "D") {
2638                         git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
2639                 } elsif ($status eq "M") {
2640                         git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
2641                 }
2642         }
2643 }
2644
2645 sub git_history {
2646         if (!defined $hash_base) {
2647                 $hash_base = git_get_head_hash($project);
2648         }
2649         my $ftype;
2650         my %co = parse_commit($hash_base);
2651         if (!%co) {
2652                 die_error(undef, "Unknown commit object");
2653         }
2654         my $refs = git_get_references();
2655         git_header_html();
2656         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base);
2657         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2658         if (!defined $hash && defined $file_name) {
2659                 $hash = git_get_hash_by_path($hash_base, $file_name);
2660         }
2661         if (defined $hash) {
2662                 $ftype = git_get_type($hash);
2663         }
2664         git_print_page_path($file_name, $ftype, $hash_base);
2665
2666         open my $fd, "-|",
2667                 $GIT, "rev-list", "--full-history", $hash_base, "--", $file_name;
2668         git_history_body($fd, $refs, $hash_base, $ftype);
2669
2670         close $fd;
2671         git_footer_html();
2672 }
2673
2674 sub git_search {
2675         if (!defined $searchtext) {
2676                 die_error(undef, "Text field empty");
2677         }
2678         if (!defined $hash) {
2679                 $hash = git_get_head_hash($project);
2680         }
2681         my %co = parse_commit($hash);
2682         if (!%co) {
2683                 die_error(undef, "Unknown commit object");
2684         }
2685         # pickaxe may take all resources of your box and run for several minutes
2686         # with every query - so decide by yourself how public you make this feature :)
2687         my $commit_search = 1;
2688         my $author_search = 0;
2689         my $committer_search = 0;
2690         my $pickaxe_search = 0;
2691         if ($searchtext =~ s/^author\\://i) {
2692                 $author_search = 1;
2693         } elsif ($searchtext =~ s/^committer\\://i) {
2694                 $committer_search = 1;
2695         } elsif ($searchtext =~ s/^pickaxe\\://i) {
2696                 $commit_search = 0;
2697                 $pickaxe_search = 1;
2698         }
2699         git_header_html();
2700         git_print_page_nav('','', $hash,$co{'tree'},$hash);
2701         git_print_header_div('commit', esc_html($co{'title'}), $hash);
2702
2703         print "<table cellspacing=\"0\">\n";
2704         my $alternate = 0;
2705         if ($commit_search) {
2706                 $/ = "\0";
2707                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash or next;
2708                 while (my $commit_text = <$fd>) {
2709                         if (!grep m/$searchtext/i, $commit_text) {
2710                                 next;
2711                         }
2712                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2713                                 next;
2714                         }
2715                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2716                                 next;
2717                         }
2718                         my @commit_lines = split "\n", $commit_text;
2719                         my %co = parse_commit(undef, \@commit_lines);
2720                         if (!%co) {
2721                                 next;
2722                         }
2723                         if ($alternate) {
2724                                 print "<tr class=\"dark\">\n";
2725                         } else {
2726                                 print "<tr class=\"light\">\n";
2727                         }
2728                         $alternate ^= 1;
2729                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2730                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2731                               "<td>" .
2732                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}) -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2733                         my $comment = $co{'comment'};
2734                         foreach my $line (@$comment) {
2735                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2736                                         my $lead = esc_html($1) || "";
2737                                         $lead = chop_str($lead, 30, 10);
2738                                         my $match = esc_html($2) || "";
2739                                         my $trail = esc_html($3) || "";
2740                                         $trail = chop_str($trail, 30, 10);
2741                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
2742                                         print chop_str($text, 80, 5) . "<br/>\n";
2743                                 }
2744                         }
2745                         print "</td>\n" .
2746                               "<td class=\"link\">" .
2747                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
2748                               " | " . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
2749                         print "</td>\n" .
2750                               "</tr>\n";
2751                 }
2752                 close $fd;
2753         }
2754
2755         if ($pickaxe_search) {
2756                 $/ = "\n";
2757                 open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
2758                 undef %co;
2759                 my @files;
2760                 while (my $line = <$fd>) {
2761                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2762                                 my %set;
2763                                 $set{'file'} = $6;
2764                                 $set{'from_id'} = $3;
2765                                 $set{'to_id'} = $4;
2766                                 $set{'id'} = $set{'to_id'};
2767                                 if ($set{'id'} =~ m/0{40}/) {
2768                                         $set{'id'} = $set{'from_id'};
2769                                 }
2770                                 if ($set{'id'} =~ m/0{40}/) {
2771                                         next;
2772                                 }
2773                                 push @files, \%set;
2774                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
2775                                 if (%co) {
2776                                         if ($alternate) {
2777                                                 print "<tr class=\"dark\">\n";
2778                                         } else {
2779                                                 print "<tr class=\"light\">\n";
2780                                         }
2781                                         $alternate ^= 1;
2782                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2783                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2784                                               "<td>" .
2785                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list"}, "<b>" .
2786                                               esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2787                                         while (my $setref = shift @files) {
2788                                                 my %set = %$setref;
2789                                                 print $cgi->a({-href => href(action=>"blob", hash=>$set{'id'}, hash_base=>$co{'id'}, file_name=>$set{'file'}), class => "list"},
2790                                                       "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
2791                                                       "<br/>\n";
2792                                         }
2793                                         print "</td>\n" .
2794                                               "<td class=\"link\">" .
2795                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
2796                                               " | " . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
2797                                         print "</td>\n" .
2798                                               "</tr>\n";
2799                                 }
2800                                 %co = parse_commit($1);
2801                         }
2802                 }
2803                 close $fd;
2804         }
2805         print "</table>\n";
2806         git_footer_html();
2807 }
2808
2809 sub git_shortlog {
2810         my $head = git_get_head_hash($project);
2811         if (!defined $hash) {
2812                 $hash = $head;
2813         }
2814         if (!defined $page) {
2815                 $page = 0;
2816         }
2817         my $refs = git_get_references();
2818
2819         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2820         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2821                 or die_error(undef, "Open git-rev-list failed");
2822         my @revlist = map { chomp; $_ } <$fd>;
2823         close $fd;
2824
2825         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
2826         my $next_link = '';
2827         if ($#revlist >= (100 * ($page+1)-1)) {
2828                 $next_link =
2829                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
2830                                  -title => "Alt-n"}, "next");
2831         }
2832
2833
2834         git_header_html();
2835         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
2836         git_print_header_div('summary', $project);
2837
2838         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
2839
2840         git_footer_html();
2841 }
2842
2843 ## ......................................................................
2844 ## feeds (RSS, OPML)
2845
2846 sub git_rss {
2847         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
2848         open my $fd, "-|", $GIT, "rev-list", "--max-count=150", git_get_head_hash($project)
2849                 or die_error(undef, "Open git-rev-list failed");
2850         my @revlist = map { chomp; $_ } <$fd>;
2851         close $fd or die_error(undef, "Reading git-rev-list failed");
2852         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
2853         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
2854               "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
2855         print "<channel>\n";
2856         print "<title>$project</title>\n".
2857               "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
2858               "<description>$project log</description>\n".
2859               "<language>en</language>\n";
2860
2861         for (my $i = 0; $i <= $#revlist; $i++) {
2862                 my $commit = $revlist[$i];
2863                 my %co = parse_commit($commit);
2864                 # we read 150, we always show 30 and the ones more recent than 48 hours
2865                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
2866                         last;
2867                 }
2868                 my %cd = parse_date($co{'committer_epoch'});
2869                 open $fd, "-|", $GIT, "diff-tree", '-r', $co{'parent'}, $co{'id'} or next;
2870                 my @difftree = map { chomp; $_ } <$fd>;
2871                 close $fd or next;
2872                 print "<item>\n" .
2873                       "<title>" .
2874                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
2875                       "</title>\n" .
2876                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
2877                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
2878                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
2879                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
2880                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
2881                       "<content:encoded>" .
2882                       "<![CDATA[\n";
2883                 my $comment = $co{'comment'};
2884                 foreach my $line (@$comment) {
2885                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
2886                         print "$line<br/>\n";
2887                 }
2888                 print "<br/>\n";
2889                 foreach my $line (@difftree) {
2890                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
2891                                 next;
2892                         }
2893                         my $file = validate_input(unquote($7));
2894                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
2895                         print "$file<br/>\n";
2896                 }
2897                 print "]]>\n" .
2898                       "</content:encoded>\n" .
2899                       "</item>\n";
2900         }
2901         print "</channel></rss>";
2902 }
2903
2904 sub git_opml {
2905         my @list = git_get_projects_list();
2906
2907         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
2908         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
2909               "<opml version=\"1.0\">\n".
2910               "<head>".
2911               "  <title>$site_name Git OPML Export</title>\n".
2912               "</head>\n".
2913               "<body>\n".
2914               "<outline text=\"git RSS feeds\">\n";
2915
2916         foreach my $pr (@list) {
2917                 my %proj = %$pr;
2918                 my $head = git_get_head_hash($proj{'path'});
2919                 if (!defined $head) {
2920                         next;
2921                 }
2922                 $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
2923                 my %co = parse_commit($head);
2924                 if (!%co) {
2925                         next;
2926                 }
2927
2928                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
2929                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
2930                 my $html = "$my_url?p=$proj{'path'};a=summary";
2931                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
2932         }
2933         print "</outline>\n".
2934               "</body>\n".
2935               "</opml>\n";
2936 }