gitweb.cgi

   1 #!/usr/bin/perl
   2
   3 # gitweb.pl - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke <ch@gierke.de>
   7 #
   8 # This program is licensed under the GPL v2, or a later version
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML);
  13 use CGI::Carp qw(fatalsToBrowser);
  14 use Fcntl ':mode';
  15
  16 my $cgi = new CGI;
  17 my $version =           "136";
  18 my $my_url =            $cgi->url();
  19 my $my_uri =            $cgi->url(-absolute => 1);
  20 my $rss_link = "";
  21
  22 # absolute fs-path which will be prepended to the project path
  23 my $projectroot =       "/pub/scm";
  24
  25 # location of the git-core binaries
  26 my $gitbin =            "/usr/bin";
  27
  28 # location for temporary files needed for diffs
  29 my $gittmp =            "/tmp/gitweb";
  30
  31 # target of the home link on top of all pages
  32 #my $home_link =                $my_uri;
  33 my $home_link =         "/git";
  34
  35 # html text to include at home page
  36 my $home_text =         "indextext.html";
  37
  38 # source of projects list
  39 #my $projects_list = $projectroot;
  40 my $projects_list = "index/index.txt";
  41
  42 # input validation and dispatch
  43 my $action = $cgi->param('a');
  44 if (defined $action) {
  45         if ($action =~ m/[^0-9a-zA-Z\.\-]+/) {
  46                 undef $action;
  47                 die_error(undef, "Invalid action parameter.");
  48         }
  49         if ($action eq "git-logo.png") {
  50                 git_logo();
  51                 exit;
  52         }
  53 } else {
  54         $action = "log";
  55 }
  56
  57 my $project = $cgi->param('p');
  58 if (defined $project) {
  59         if ($project =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
  60                 undef $project;
  61                 die_error(undef, "Non-canonical project parameter.");
  62         }
  63         if ($project =~ m/[^a-zA-Z0-9_\.\/\-\+\#\~]/) {
  64                 undef $project;
  65                 die_error(undef, "Invalid character in project parameter.");
  66         }
  67         if (!(-d "$projectroot/$project")) {
  68                 undef $project;
  69                 die_error(undef, "No such directory.");
  70         }
  71         if (!(-e "$projectroot/$project/HEAD")) {
  72                 undef $project;
  73                 die_error(undef, "No such project.");
  74         }
  75         $rss_link = "<link rel=\"alternate\" title=\"$project log\" href=\"$my_uri?p=$project;a=rss\" type=\"application/rss+xml\"/>";
  76         $ENV{'SHA1_FILE_DIRECTORY'} = "$projectroot/$project/objects";
  77 } else {
  78         git_project_list($projects_list);
  79         exit;
  80 }
  81
  82 my $file_name = $cgi->param('f');
  83 if (defined $file_name) {
  84         if ($file_name =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
  85                 undef $file_name;
  86                 die_error(undef, "Non-canonical file parameter.");
  87         }
  88         if ($file_name =~ m/[^a-zA-Z0-9_\.\/\-\+\#\~\:\!]/) {
  89                 undef $file_name;
  90                 die_error(undef, "Invalid character in file parameter.");
  91         }
  92 }
  93
  94 my $hash = $cgi->param('h');
  95 if (defined $hash && !($hash =~ m/^[0-9a-fA-F]{40}$/)) {
  96         undef $hash;
  97         die_error(undef, "Invalid hash parameter.");
  98 }
  99
 100 my $hash_parent = $cgi->param('hp');
 101 if (defined $hash_parent && !($hash_parent =~ m/^[0-9a-fA-F]{40}$/)) {
 102         undef $hash_parent;
 103         die_error(undef, "Invalid hash_parent parameter.");
 104 }
 105
 106 my $hash_base = $cgi->param('hb');
 107 if (defined $hash_base && !($hash_base =~ m/^[0-9a-fA-F]{40}$/)) {
 108         undef $hash_base;
 109         die_error(undef, "Invalid parent hash parameter.");
 110 }
 111
 112 my $time_back = $cgi->param('t');
 113 if (defined $time_back) {
 114         if ($time_back =~ m/^[^0-9]+$/) {
 115                 undef $time_back;
 116                 die_error(undef, "Invalid time parameter.");
 117         }
 118 }
 119
 120 if ($action eq "blob") {
 121         git_blob();
 122         exit;
 123 } elsif ($action eq "tree") {
 124         git_tree();
 125         exit;
 126 } elsif ($action eq "rss") {
 127         git_rss();
 128         exit;
 129 } elsif ($action eq "commit") {
 130         git_commit();
 131         exit;
 132 } elsif ($action eq "log") {
 133         git_log();
 134         exit;
 135 } elsif ($action eq "blobdiff") {
 136         git_blobdiff();
 137         exit;
 138 } elsif ($action eq "commitdiff") {
 139         git_commitdiff();
 140         exit;
 141 } elsif ($action eq "history") {
 142         git_history();
 143         exit;
 144 } else {
 145         undef $action;
 146         die_error(undef, "Unknown action.");
 147         exit;
 148 }
 149
 150 sub git_header_html {
 151         my $status = shift || "200 OK";
 152
 153         my $title = "git";
 154         if (defined $project) {
 155                 $title .= " - $project";
 156                 if (defined $action) {
 157                         $title .= "/$action";
 158                 }
 159         }
 160         print $cgi->header(-type=>'text/html',  -charset => 'utf-8', -status=> $status);
 161         print <<EOF;
 162 <?xml version="1.0" encoding="utf-8"?>
 163 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 164 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
 165 <!-- git web interface v$version, (C) 2005, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke <ch\@gierke.de> -->
 166 <head>
 167 <title>$title</title>
 168 $rss_link
 169 <style type="text/css">
 170 body { font-family: sans-serif; font-size: 12px; margin:0px; border:solid #d9d8d1; border-width:1px; margin:10px; }
 171 a { color:#0000cc; }
 172 a:hover, a:visited, a:active { color:#880000; }
 173 div.page_header { height:25px; padding:8px; font-size:18px; font-weight:bold; background-color:#d9d8d1; }
 174 div.page_header a:visited { color:#0000cc; }
 175 div.page_header a:hover { color:#880000; }
 176 div.page_nav { padding:8px; }
 177 div.page_nav a:visited { color:#0000cc; }
 178 div.page_path { font-weight:bold; padding:8px; border:solid #d9d8d1; border-width:0px 0px 1px}
 179 div.page_footer { height:17px; padding:4px 8px; background-color: #d9d8d1; }
 180 div.page_footer_text { float:left; color:#555555; font-style:italic; }
 181 div.page_body { padding:8px; }
 182 div.title, a.title {
 183         display:block; padding:6px 8px;
 184         font-weight:bold; background-color:#edece6; text-decoration:none; color:#000000;
 185 }
 186 a.title:hover { background-color: #d9d8d1; }
 187 div.title_text { padding:6px 8px; border: solid #d9d8d1; border-width:0px 0px 1px; }
 188 div.log_body { padding:8px 8px 8px 150px; }
 189 span.log_age { position:relative; float:left; width:142px; font-style:italic; }
 190 div.log_link {
 191         font-size:10px; font-family:sans-serif; font-style:normal;
 192         position:relative; float:left; width:142px;
 193 }
 194 div.list { display:block; padding:4px 8px 2px; font-weight:bold; }
 195 div.list_head {
 196         display:block; padding:6px 6px 4px; border:solid #d9d8d1;
 197         border-width:0px 0px 1px; font-style:italic;
 198 }
 199 div.list a { text-decoration:none; color:#000000; }
 200 div.list a:hover { color:#880000; }
 201 div.link {
 202         padding:4px 8px 6px; border:solid #d9d8d1; border-width:0px 0px 1px;
 203         font-family:sans-serif; font-size:10px;
 204 }
 205 td { padding:5px 15px 0px 0px; font-size:12px; }
 206 th { padding-right:10px; font-size:12px; text-align:left; }
 207 td.link { font-family:sans-serif; font-size:10px; }
 208 td.pre { font-family:monospace; font-size:12px; white-space:pre; padding:2px 15px 0px 0px; }
 209 div.pre { font-family:monospace; font-size:12px; white-space:pre; }
 210 div.diff_info { font-family:monospace; color:#000099; background-color:#edece6; font-style:italic; }
 211 div.index_include { border:solid #d9d8d1; border-width:0px 0px 1px; padding:12px 8px; }
 212 a.rss_logo { float:right; padding:3px 0px; width:35px; line-height:10px;
 213         border:1px solid; border-color:#fcc7a5 #7d3302 #3e1a01 #ff954e;
 214         color:#ffffff; background-color:#ff6600;
 215         font-weight:bold; font-family:sans-serif; font-size:10px;
 216         text-align:center; text-decoration:none;
 217 }
 218 a.rss_logo:hover { background-color:#ee5500; }
 219 </style>
 220 </head>
 221 <body>
 222 EOF
 223         print "<div class=\"page_header\">\n" .
 224               "<a href=\"http://kernel.org/pub/software/scm/git/docs/\">" .
 225               "<img src=\"$my_uri?a=git-logo.png\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/></a>";
 226         print $cgi->a({-href => $home_link}, "projects") . " / ";
 227         if (defined $project) {
 228                 print $cgi->a({-href => "$my_uri?p=$project;a=log"}, escapeHTML($project));
 229                 if (defined $action) {
 230                         print " / $action";
 231                 }
 232         }
 233         print "</div>\n";
 234 }
 235
 236 sub git_footer_html {
 237         print "<div class=\"page_footer\">\n";
 238         if (defined $project) {
 239                 my $descr = git_read_description($project);
 240                 if (defined $descr) {
 241                         print "<div class=\"page_footer_text\">" . escapeHTML($descr) . "</div>\n";
 242                 }
 243                 print $cgi->a({-href => "$my_uri?p=$project;a=rss", -class => "rss_logo"}, "RSS") . "\n";
 244         }
 245         print "</div>\n" .
 246               "</body>\n" .
 247               "</html>";
 248 }
 249
 250 sub die_error {
 251         my $status = shift || "403 Forbidden";
 252         my $error = shift || "Malformed query, file missing or permission denied";
 253
 254         git_header_html($status);
 255         print "<div class=\"page_body\">\n" .
 256               "<br/><br/>\n";
 257         print "$status - $error\n";
 258         print "<br/></div>\n";
 259         git_footer_html();
 260         exit;
 261 }
 262
 263 sub git_get_type {
 264         my $hash = shift;
 265
 266         open my $fd, "-|", "$gitbin/git-cat-file -t $hash" || return;
 267         my $type = <$fd>;
 268         close $fd;
 269         chomp $type;
 270         return $type;
 271 }
 272
 273 sub git_read_head {
 274         my $path = shift;
 275
 276         open my $fd, "$projectroot/$path/HEAD" || return undef;
 277         my $head = <$fd>;
 278         close $fd;
 279         chomp $head;
 280         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 281                 return $head;
 282         } else {
 283                 return undef;
 284         }
 285 }
 286
 287 sub git_read_description {
 288         my $path = shift;
 289
 290         open my $fd, "$projectroot/$path/description" || return undef;
 291         my $descr = <$fd>;
 292         close $fd;
 293         chomp $descr;
 294         return $descr;
 295 }
 296
 297 sub git_read_commit {
 298         my $commit = shift;
 299         my %co;
 300         my @parents;
 301
 302         open my $fd, "-|", "$gitbin/git-cat-file commit $commit" || return;
 303         while (my $line = <$fd>) {
 304                 last if $line eq "\n";
 305                 chomp $line;
 306                 if ($line =~ m/^tree (.*)$/) {
 307                         $co{'tree'} = $1;
 308                 } elsif ($line =~ m/^parent (.*)$/) {
 309                         push @parents, $1;
 310                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 311                         $co{'author'} = $1;
 312                         $co{'author_epoch'} = $2;
 313                         $co{'author_tz'} = $3;
 314                         $co{'author_name'} = $co{'author'};
 315                         $co{'author_name'} =~ s/ <.*//;
 316                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 317                         $co{'committer'} = $1;
 318                         $co{'committer_epoch'} = $2;
 319                         $co{'committer_tz'} = $3;
 320                         $co{'committer_name'} = $co{'committer'};
 321                         $co{'committer_name'} =~ s/ <.*//;
 322                 }
 323         }
 324         $co{'parents'} = \@parents;
 325         $co{'parent'} = $parents[0];
 326         my (@comment) = map { chomp; $_ } <$fd>;
 327         $co{'comment'} = \@comment;
 328         $comment[0] =~ m/^(.{0,60}[^ ]*)/;
 329         $co{'title'} = $1;
 330         if ($comment[0] ne $co{'title'}) {
 331                 $co{'title'} .= " [...]";
 332         }
 333         close $fd || return;
 334         if (!defined $co{'tree'}) {
 335                 return undef
 336         };
 337
 338         my $age = time - $co{'committer_epoch'};
 339         $co{'age'} = $age;
 340         if ($age > 60*60*24*365*2) {
 341                 $co{'age_string'} = (int $age/60/60/24/365);
 342                 $co{'age_string'} .= " years ago";
 343         } elsif ($age > 60*60*24*365/12*2) {
 344                 $co{'age_string'} = int $age/60/60/24/365/12;
 345                 $co{'age_string'} .= " months ago";
 346         } elsif ($age > 60*60*24*7*2) {
 347                 $co{'age_string'} = int $age/60/60/24/7;
 348                 $co{'age_string'} .= " weeks ago";
 349         } elsif ($age > 60*60*24*2) {
 350                 $co{'age_string'} = int $age/60/60/24;
 351                 $co{'age_string'} .= " days ago";
 352         } elsif ($age > 60*60*2) {
 353                 $co{'age_string'} = int $age/60/60;
 354                 $co{'age_string'} .= " hours ago";
 355         } elsif ($age > 60*2) {
 356                 $co{'age_string'} = int $age/60;
 357                 $co{'age_string'} .= " minutes ago";
 358         } elsif ($age > 2) {
 359                 $co{'age_string'} = int $age;
 360                 $co{'age_string'} .= " seconds ago";
 361         } else {
 362                 $co{'age_string'} .= " right now";
 363         }
 364         return %co;
 365 }
 366
 367 sub git_diff_html {
 368         my $from = shift;
 369         my $from_name = shift;
 370         my $to = shift;
 371         my $to_name = shift;
 372
 373         my $from_tmp = "/dev/null";
 374         my $to_tmp = "/dev/null";
 375         my $pid = $$;
 376
 377         # create tmp from-file
 378         if (defined $from) {
 379                 $from_tmp = "$gittmp/gitweb_" . $$ . "_from";
 380                 open my $fd2, "> $from_tmp";
 381                 open my $fd, "-|", "$gitbin/git-cat-file blob $from";
 382                 my @file = <$fd>;
 383                 print $fd2 @file;
 384                 close $fd2;
 385                 close $fd;
 386         }
 387
 388         # create tmp to-file
 389         if (defined $to) {
 390                 $to_tmp = "$gittmp/gitweb_" . $$ . "_to";
 391                 open my $fd2, "> $to_tmp";
 392                 open my $fd, "-|", "$gitbin/git-cat-file blob $to";
 393                 my @file = <$fd>;
 394                 print $fd2 @file;
 395                 close $fd2;
 396                 close $fd;
 397         }
 398
 399         open my $fd, "-|", "/usr/bin/diff -u -p -L $from_name -L $to_name $from_tmp $to_tmp";
 400         while (my $line = <$fd>) {
 401                 chomp($line);
 402                 my $char = substr($line, 0, 1);
 403                 my $color = "";
 404                 if ($char eq '+') {
 405                         $color = " style=\"color:#008800;\"";
 406                 } elsif ($char eq '-') {
 407                         $color = " style=\"color:#cc0000;\"";
 408                 } elsif ($char eq '@') {
 409                         $color = " style=\"color:#990099;\"";
 410                 } elsif ($char eq '\\') {
 411                         # skip errors
 412                         next;
 413                 }
 414                 print "<div class=\"pre\"$color>" . escapeHTML($line) . "</div>\n";
 415         }
 416         close $fd;
 417
 418         if (defined $from) {
 419                 unlink($from_tmp);
 420         }
 421         if (defined $to) {
 422                 unlink($to_tmp);
 423         }
 424 }
 425
 426 sub mode_str {
 427         my $mode = oct shift;
 428
 429         if (S_ISDIR($mode & S_IFMT)) {
 430                 return 'drwxr-xr-x';
 431         } elsif (S_ISLNK($mode)) {
 432                 return 'lrwxrwxrwx';
 433         } elsif (S_ISREG($mode)) {
 434                 # git cares only about the executable bit
 435                 if ($mode & S_IXUSR) {
 436                         return '-rwxr-xr-x';
 437                 } else {
 438                         return '-rw-r--r--';
 439                 };
 440         } else {
 441                 return '----------';
 442         }
 443 }
 444
 445 sub file_type {
 446         my $mode = oct shift;
 447
 448         if (S_ISDIR($mode & S_IFMT)) {
 449                 return "directory";
 450         } elsif (S_ISLNK($mode)) {
 451                 return "symlink";
 452         } elsif (S_ISREG($mode)) {
 453                 return "file";
 454         } else {
 455                 return "unknown";
 456         }
 457 }
 458
 459 sub date_str {
 460         my $epoch = shift;
 461         my $tz = shift || "-0000";
 462
 463         my %date;
 464         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 465         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 466         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 467         $date{'hour'} = $hour;
 468         $date{'minute'} = $min;
 469         $date{'mday'} = $mday;
 470         $date{'day'} = $days[$wday];
 471         $date{'month'} = $months[$mon];
 472         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 473         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 474
 475         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 476         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 477         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 478         $date{'hour_local'} = $hour;
 479         $date{'minute_local'} = $min;
 480         $date{'tz_local'} = $tz;
 481         return %date;
 482 }
 483
 484 # git-logo (cached in browser for one day)
 485 sub git_logo {
 486         print $cgi->header(-type => 'image/png', -expires => '+1d');
 487         # cat git-logo.png | hexdump -e '16/1 " %02x"  "\n"' | sed 's/ /\\x/g'
 488         print   "\x89\x50\x4e\x47\x0d\x0a\x1a\x0a\x00\x00\x00\x0d\x49\x48\x44\x52" .
 489                 "\x00\x00\x00\x48\x00\x00\x00\x1b\x04\x03\x00\x00\x00\x2d\xd9\xd4" .
 490                 "\x2d\x00\x00\x00\x18\x50\x4c\x54\x45\xff\xff\xff\x60\x60\x5d\xb0" .
 491                 "\xaf\xaa\x00\x80\x00\xce\xcd\xc7\xc0\x00\x00\xe8\xe8\xe6\xf7\xf7" .
 492                 "\xf6\x95\x0c\xa7\x47\x00\x00\x00\x73\x49\x44\x41\x54\x28\xcf\x63" .
 493                 "\x48\x67\x20\x04\x4a\x5c\x18\x0a\x08\x2a\x62\x53\x61\x20\x02\x08" .
 494                 "\x0d\x69\x45\xac\xa1\xa1\x01\x30\x0c\x93\x60\x36\x26\x52\x91\xb1" .
 495                 "\x01\x11\xd6\xe1\x55\x64\x6c\x6c\xcc\x6c\x6c\x0c\xa2\x0c\x70\x2a" .
 496                 "\x62\x06\x2a\xc1\x62\x1d\xb3\x01\x02\x53\xa4\x08\xe8\x00\x03\x18" .
 497                 "\x26\x56\x11\xd4\xe1\x20\x97\x1b\xe0\xb4\x0e\x35\x24\x71\x29\x82" .
 498                 "\x99\x30\xb8\x93\x0a\x11\xb9\x45\x88\xc1\x8d\xa0\xa2\x44\x21\x06" .
 499                 "\x27\x41\x82\x40\x85\xc1\x45\x89\x20\x70\x01\x00\xa4\x3d\x21\xc5" .
 500                 "\x12\x1c\x9a\xfe\x00\x00\x00\x00\x49\x45\x4e\x44\xae\x42\x60\x82";
 501 }
 502
 503 sub get_file_owner {
 504         my $path = shift;
 505
 506         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
 507         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 508         if (!defined $gcos) {
 509                 return undef;
 510         }
 511         my $owner = $gcos;
 512         $owner =~ s/[,;].*$//;
 513         return $owner;
 514 }
 515
 516 sub git_project_list {
 517         my $project_list = shift;
 518         my @list;
 519
 520         if (-d $project_list) {
 521                 # search in directory
 522                 my $dir = $project_list;
 523                 opendir my $dh, $dir || return undef;
 524                 while (my $dir = readdir($dh)) {
 525                         if (-e "$projectroot/$dir/HEAD") {
 526                                 my $pr = {
 527                                         path => $dir,
 528                                 };
 529                                 push @list, $pr
 530                         }
 531                 }
 532                 closedir($dh);
 533         } elsif (-e $project_list) {
 534                 # read from file
 535                 # 'git/git.git:Linus Torvalds'
 536                 # 'linux/hotplug/udev.git'
 537                 open my $fd , $project_list || return undef;
 538                 while (my $line = <$fd>) {
 539                         chomp $line;
 540                         my ($path, $owner) = split ':', $line;
 541                         if (!defined $path) {
 542                                 next;
 543                         }
 544                         if (-e "$projectroot/$path/HEAD") {
 545                                 my $pr = {
 546                                         path => $path,
 547                                         owner => $owner,
 548                                 };
 549                                 push @list, $pr
 550                         }
 551                 }
 552                 close $fd;
 553         }
 554
 555         if (!@list) {
 556                 die_error(undef, "No project found.");
 557         }
 558         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 559
 560         git_header_html();
 561         if (-f $home_text) {
 562                 print "<div class=\"index_include\">\n";
 563                 open my $fd, $home_text;
 564                 print <$fd>;
 565                 close $fd;
 566                 print "</div>\n";
 567         }
 568         print "<div class=\"page_body\"><br/>\n" .
 569               "<table cellspacing=\"0\">\n" .
 570               "<tr>\n" .
 571               "<th>Project</th>\n" .
 572               "<th>Description</th>\n" .
 573               "<th>Owner</th>\n" .
 574               "<th>last change</th>\n" .
 575               "</tr>\n";
 576         foreach my $pr (@list) {
 577                 my %proj = %$pr;
 578                 my $head = git_read_head($proj{'path'});
 579                 if (!defined $head) {
 580                         next;
 581                 }
 582                 $ENV{'SHA1_FILE_DIRECTORY'} = "$projectroot/$proj{'path'}/objects";
 583                 my %co = git_read_commit($head);
 584                 if (!%co) {
 585                         next;
 586                 }
 587                 my $descr = git_read_description($proj{'path'}) || "";
 588                 # get directory owner if not already specified
 589                 if (!defined $proj{'owner'}) {
 590                         $proj{'owner'} = get_file_owner("$projectroot/$proj{'path'}") || "";
 591                 }
 592                 print "<tr>\n" .
 593                       "<td>" . $cgi->a({-href => "$my_uri?p=" . $proj{'path'} . ";a=log"}, escapeHTML($proj{'path'})) . "</td>\n" .
 594                       "<td>$descr</td>\n" .
 595                       "<td><i>$proj{'owner'}</i></td>\n";
 596                 if ($co{'age'} < 60*60*2) {
 597                         print "<td><span style =\"color: #009900;\"><b><i>$co{'age_string'}</i></b></span></td>\n";
 598                 } elsif ($co{'age'} < 60*60*24*2) {
 599                         print "<td><span style =\"color: #009900;\"><i>$co{'age_string'}</i></span></td>\n";
 600                 } else {
 601                         print "<td><i>$co{'age_string'}</i></td>\n";
 602                 }
 603                 print "</tr>\n";
 604         }
 605         print "</table>\n" .
 606               "<br/>\n" .
 607               "</div>\n";
 608         git_footer_html();
 609 }
 610
 611 sub git_get_hash_by_path {
 612         my $base = shift;
 613         my $path = shift;
 614
 615         my $tree = $base;
 616         my @parts = split '/', $path;
 617         while (my $part = shift @parts) {
 618                 open my $fd, "-|", "$gitbin/git-ls-tree $tree" || die_error(undef, "Open git-ls-tree failed.");
 619                 my (@entries) = map { chomp; $_ } <$fd>;
 620                 close $fd || return undef;
 621                 foreach my $line (@entries) {
 622                         #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
 623                         $line =~ m/^([0-9]+)\t(.*)\t(.*)\t(.*)$/;
 624                         my $t_mode = $1;
 625                         my $t_type = $2;
 626                         my $t_hash = $3;
 627                         my $t_name = $4;
 628                         if ($t_name eq $part) {
 629                                 if (!(@parts)) {
 630                                         return $t_hash;
 631                                 }
 632                                 if ($t_type eq "tree") {
 633                                         $tree = $t_hash;
 634                                 }
 635                                 last;
 636                         }
 637                 }
 638         }
 639 }
 640
 641 sub git_blob {
 642         if (!defined $hash && defined $file_name) {
 643                 my $base = $hash_base || git_read_head($project);
 644                 $hash = git_get_hash_by_path($base, $file_name, "blob");
 645         }
 646         open my $fd, "-|", "$gitbin/git-cat-file blob $hash" || die_error(undef, "Open failed.");
 647         my $base = $file_name || "";
 648         git_header_html();
 649         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
 650                 print "<div class=\"page_nav\">\n" .
 651                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base"}, "commit") .
 652                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash_base"}, "commitdiff") .
 653                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash_base"}, "tree");
 654                 if (defined $file_name) {
 655                         print " | " . $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash_base;f=$file_name"}, "history");
 656                 }
 657                 print "<br/><br/>\n" .
 658                       "</div>\n";
 659                 print "<div>" .
 660                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base", -class => "title"}, escapeHTML($co{'title'})) .
 661                       "</div>\n";
 662         } else {
 663                 print "<div class=\"page_nav\">\n" .
 664                       "<br/><br/></div>\n" .
 665                       "<div class=\"title\">$hash</div>\n";
 666         }
 667         if (defined $file_name) {
 668                 print "<div class=\"page_path\">/$file_name</div>\n";
 669         }
 670         print "<div class=\"page_body\">\n";
 671         my $nr;
 672         while (my $line = <$fd>) {
 673                 chomp $line;
 674                 $nr++;
 675                 print "<div class=\"pre\">";
 676                 printf "<span style=\"color:#999999;\">%4i</span>", $nr;
 677                 print " " .escapeHTML($line) . "</div>\n";
 678         }
 679         close $fd || print "Reading blob failed.\n";
 680         print "</div>";
 681         git_footer_html();
 682 }
 683
 684 sub git_tree {
 685         if (!defined $hash) {
 686                 $hash = git_read_head($project);
 687                 if (defined $file_name) {
 688                         my $base = $hash_base || git_read_head($project);
 689                         $hash = git_get_hash_by_path($base, $file_name, "tree");
 690                 }
 691         }
 692         open my $fd, "-|", "$gitbin/git-ls-tree $hash" || die_error(undef, "Open git-ls-tree failed.");
 693         my (@entries) = map { chomp; $_ } <$fd>;
 694         close $fd || die_error(undef, "Reading tree failed.");
 695
 696         git_header_html();
 697         my $base_key = "";
 698         my $file_key = "";
 699         my $base = "";
 700         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
 701                 $base_key = ";hb=$hash_base";
 702                 print "<div class=\"page_nav\">\n" .
 703                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base"}, "commit") . " | " .
 704                       $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash_base"}, "commitdiff") . " | " .
 705                       $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash_base"}, "tree") .
 706                       "<br/><br/>\n" .
 707                       "</div>\n";
 708                 print "<div>\n" .
 709                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
 710                       "</div>\n";
 711         } else {
 712                 print "<div class=\"page_nav\">\n";
 713                 print "<br/><br/></div>\n";
 714                 print "<div class=\"title\">$hash</div>\n";
 715         }
 716         if (defined $file_name) {
 717                 $base = "$file_name/";
 718                 print "<div class=\"page_path\">/$file_name</div>\n";
 719         } else {
 720                 print "<div class=\"page_path\">/</div>\n";
 721         }
 722         print "<div class=\"page_body\">\n";
 723         print "<table cellspacing=\"0\">\n";
 724         foreach my $line (@entries) {
 725                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
 726                 $line =~ m/^([0-9]+)\t(.*)\t(.*)\t(.*)$/;
 727                 my $t_mode = $1;
 728                 my $t_type = $2;
 729                 my $t_hash = $3;
 730                 my $t_name = $4;
 731                 $file_key = ";f=$base$t_name";
 732                 print "<tr>\n" .
 733                       "<td class=\"pre\">" . mode_str($t_mode) . "</td>\n";
 734                 if ($t_type eq "blob") {
 735                         print "<td class=\"pre\">$t_name</td>\n";
 736                         print "<td class=\"link\">" .
 737                               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$t_hash" . $base_key . $file_key}, "blob") .
 738                               " | " . $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash_base" . $file_key}, "history") .
 739                               "</td>\n";
 740                 } elsif ($t_type eq "tree") {
 741                         print "<td class=\"pre\">" .
 742                               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$t_hash" . $base_key . $file_key}, $t_name) .
 743                               "</td>\n";
 744                 }
 745                 print "</tr>\n";
 746         }
 747         print "</table>\n" .
 748               "</div>";
 749         git_footer_html();
 750 }
 751
 752 sub git_rss {
 753         open my $fd, "-|", "$gitbin/git-rev-list --max-count=20 " . git_read_head($project) || die_error(undef, "Open failed.");
 754         my (@revlist) = map { chomp; $_ } <$fd>;
 755         close $fd || die_error(undef, "Reading rev-list failed.");
 756
 757         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
 758         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
 759               "<rss version=\"0.91\">\n";
 760         print "<channel>\n";
 761         print "<title>$project</title>\n".
 762               "<link> " . $my_url . "/$project/log</link>\n".
 763               "<description>$project log</description>\n".
 764               "<language>en</language>\n";
 765
 766         foreach my $commit (@revlist) {
 767                 my %co = git_read_commit($commit);
 768                 my %ad = date_str($co{'author_epoch'});
 769                 print "<item>\n" .
 770                       "\t<title>" . sprintf("%d %s %02d:%02d", $ad{'mday'}, $ad{'month'}, $ad{'hour'}, $ad{'minute'}) . " - " . escapeHTML($co{'title'}) . "</title>\n" .
 771                       "\t<link> " . $my_url . "?p=$project;a=commit;h=$commit</link>\n" .
 772                       "\t<description>";
 773                 my $comment = $co{'comment'};
 774                 foreach my $line (@$comment) {
 775                         print escapeHTML($line) . "<br/>\n";
 776                 }
 777                 print "\t</description>\n" .
 778                       "</item>\n";
 779         }
 780         print "</channel></rss>";
 781 }
 782
 783 sub git_log {
 784         my $head = git_read_head($project);
 785         my $limit_option = "";
 786         if (!defined $time_back) {
 787                 $limit_option = "--max-count=10";
 788         } elsif ($time_back > 0) {
 789                 my $date = time - $time_back*24*60*60;
 790                 $limit_option = "--max-age=$date";
 791         }
 792         open my $fd, "-|", "$gitbin/git-rev-list $limit_option $head" || die_error(undef, "Open failed.");
 793         my (@revlist) = map { chomp; $_ } <$fd>;
 794         close $fd || die_error(undef, "Reading rev-list failed.");
 795
 796         git_header_html();
 797         print "<div class=\"page_nav\">\n";
 798         print $cgi->a({-href => "$my_uri?p=$project;a=log"}, "last 10") . " | " .
 799               $cgi->a({-href => "$my_uri?p=$project;a=log;t=1"}, "day") . " | " .
 800               $cgi->a({-href => "$my_uri?p=$project;a=log;t=7"}, "week") . " | " .
 801               $cgi->a({-href => "$my_uri?p=$project;a=log;t=31"}, "month") . " | " .
 802               $cgi->a({-href => "$my_uri?p=$project;a=log;t=365"}, "year") . " | " .
 803               $cgi->a({-href => "$my_uri?p=$project;a=log;t=0"}, "all") . "<br/>\n";
 804         print "<br/><br/>\n" .
 805               "</div>\n";
 806
 807         if (!@revlist) {
 808                 my %co = git_read_commit($head);
 809                 print "<div class=\"page_body\"> Last change " . $co{'age_string'} . ".<br/><br/></div>\n";
 810         }
 811
 812         foreach my $commit (@revlist) {
 813                 my %co = git_read_commit($commit);
 814                 next if !%co;
 815                 my %ad = date_str($co{'author_epoch'});
 816                 print "<div>\n" .
 817                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit", -class => "title"},
 818                       "<span class=\"log_age\">" . $co{'age_string'} . "</span>" . escapeHTML($co{'title'})) . "\n" .
 819                       "</div>\n";
 820                 print "<div class=\"title_text\">\n" .
 821                       "<div class=\"log_link\">\n" .
 822                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "commit") .
 823                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$commit"}, "commitdiff") .
 824                       "<br/>\n" .
 825                       "</div>\n" .
 826                       "<i>" . escapeHTML($co{'author_name'}) .  " [" . $ad{'rfc2822'} . "]</i><br/>\n" .
 827                       "</div>\n" .
 828                       "<div class=\"log_body\">\n";
 829                 my $comment = $co{'comment'};
 830                 my $empty = 0;
 831                 foreach my $line (@$comment) {
 832                         if ($line =~ m/^(signed[ \-]off[\-]by[ :]|acked[\-]by[ \:]|cc[ :])/i) {
 833                                 next;
 834                         }
 835                         if ($line eq "") {
 836                                 if ($empty) {
 837                                         next;
 838                                 }
 839                                 $empty = 1;
 840                         } else {
 841                                 $empty = 0;
 842                         }
 843                         print escapeHTML($line) . "<br/>\n";
 844                 }
 845                 if (!$empty) {
 846                         print "<br/>\n";
 847                 }
 848                 print "</div>\n";
 849         }
 850         git_footer_html();
 851 }
 852
 853 sub git_commit {
 854         my %co = git_read_commit($hash);
 855         if (!%co) {
 856                 die_error(undef, "Unknown commit object.");
 857         }
 858         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
 859         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
 860
 861         my @difftree;
 862         if (defined $co{'parent'}) {
 863                 open my $fd, "-|", "$gitbin/git-diff-tree -r " . $co{'parent'} . " $hash" || die_error(undef, "Open failed.");
 864                 @difftree = map { chomp; $_ } <$fd>;
 865                 close $fd || die_error(undef, "Reading diff-tree failed.");
 866         } else {
 867                 # fake git-diff-tree output for initial revision
 868                 open my $fd, "-|", "$gitbin/git-ls-tree -r $hash" || die_error(undef, "Open failed.");
 869                 @difftree = map { chomp;  "+" . $_ } <$fd>;
 870                 close $fd || die_error(undef, "Reading ls-tree failed.");
 871         }
 872         git_header_html();
 873         print "<div class=\"page_nav\">\n" .
 874               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit");
 875         if (defined $co{'parent'}) {
 876                 print " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "commitdiff");
 877         }
 878         print " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash"}, "tree") . "\n" .
 879               "<br/><br/></div>\n";
 880         if (defined $co{'parent'}) {
 881                 print "<div>\n" .
 882                       $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
 883                       "</div>\n";
 884         } else {
 885                 print "<div>\n" .
 886                       $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
 887                       "</div>\n";
 888         }
 889         print "<div class=\"title_text\">\n" .
 890               "<table cellspacing=\"0\">\n";
 891         print "<tr><td>author</td><td>" . escapeHTML($co{'author'}) . "</td></tr>\n".
 892               "<tr><td></td><td> " . $ad{'rfc2822'};
 893         if ($ad{'hour_local'} < 6) {
 894                 printf(" (<span style=\"color: #cc0000;\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
 895         } else {
 896                 printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
 897         }
 898         print "</td></tr>\n";
 899         print "<tr><td>committer</td><td>" . escapeHTML($co{'committer'}) . "</td></tr>\n";
 900         print "<tr><td></td><td> " . $cd{'rfc2822'} . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
 901         print "<tr><td>commit</td><td style=\"font-family: monospace;\">$hash</td></tr>\n";
 902         print "<tr><td>tree</td><td style=\"font-family: monospace;\">" .
 903               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=" . $hash}, $co{'tree'}) . "</td></tr>\n";
 904         my $parents  = $co{'parents'};
 905         foreach my $par (@$parents) {
 906                 print "<tr><td>parent</td><td style=\"font-family: monospace;\">" .
 907                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$par"}, $par) . "</td></tr>\n";
 908         }
 909         print "</table>".
 910               "</div>\n";
 911         print "<div class=\"page_body\">\n";
 912         my $comment = $co{'comment'};
 913         my $empty = 0;
 914         my $signed = 0;
 915         foreach my $line (@$comment) {
 916                 # print only one empty line
 917                 if ($line eq "") {
 918                         if ($empty || $signed) {
 919                                 next;
 920                         }
 921                         $empty = 1;
 922                 } else {
 923                         $empty = 0;
 924                 }
 925                 if ($line =~ m/^(signed[ \-]off[\-]by[ :]|acked[\-]by[ \:]|cc[ :])/i) {
 926                         $signed = 1;
 927                         print "<span style=\"color: #888888\">" . escapeHTML($line) . "</span><br/>\n";
 928                 } else {
 929                         $signed = 0;
 930                         print escapeHTML($line) . "<br/>\n";
 931                 }
 932         }
 933         print "</div>\n";
 934         print "<div class=\"list_head\">\n";
 935         if ($#difftree > 10) {
 936                 print(($#difftree + 1) . " files changed:\n");
 937         }
 938         print "</div>\n";
 939         foreach my $line (@difftree) {
 940                 # '*100644->100644      blob    9f91a116d91926df3ba936a80f020a6ab1084d2b->bb90a0c3a91eb52020d0db0e8b4f94d30e02d596      net/ipv4/route.c'
 941                 # '+100644      blob    4a83ab6cd565d21ab0385bac6643826b83c2fcd4        arch/arm/lib/bitops.h'
 942                 # '*100664->100644      blob    b1a8e3dd5556b61dd771d32307c6ee5d7150fa43->b1a8e3dd5556b61dd771d32307c6ee5d7150fa43      show-files.c'
 943                 # '*100664->100644      blob    d08e895238bac36d8220586fdc28c27e1a7a76d3->d08e895238bac36d8220586fdc28c27e1a7a76d3      update-cache.c'
 944                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 945                 my $op = $1;
 946                 my $mode = $2;
 947                 my $type = $3;
 948                 my $id = $4;
 949                 my $file = $5;
 950                 if ($type eq "blob") {
 951                         if ($op eq "+") {
 952                                 my $mode_chng = "";
 953                                 if (S_ISREG(oct $mode)) {
 954                                         $mode_chng = sprintf(" with mode: %04o", (oct $mode) & 0777);
 955                                 }
 956                                 print "<div class=\"list\">\n" .
 957                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"},
 958                                       escapeHTML($file) . " <span style=\"color: #008000;\">[new " . file_type($mode) . $mode_chng . "]</span>") . "\n" .
 959                                       "</div>\n";
 960                                 print "<div class=\"link\">\n" .
 961                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"}, "blob") . "\n" .
 962                                       "</div>\n";
 963                         } elsif ($op eq "-") {
 964                                 print "<div class=\"list\">\n" .
 965                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"},
 966                                       escapeHTML($file) .  " <span style=\"color: #c00000;\">[deleted " . file_type($mode) . "]</span>") . "\n" .
 967                                       "</div>";
 968                                 print "<div class=\"link\">\n" .
 969                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"}, "blob") . " | " .
 970                                       $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash;f=$file"}, "history") . "\n" .
 971                                       "</div>\n";
 972                         } elsif ($op eq "*") {
 973                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
 974                                 my $from_id = $1;
 975                                 my $to_id = $2;
 976                                 $mode =~ m/^([0-7]{6})->([0-7]{6})$/;
 977                                 my $from_mode = $1;
 978                                 my $to_mode = $2;
 979                                 my $mode_chnge = "";
 980                                 if ($from_mode != $to_mode) {
 981                                         $mode_chnge = " <span style=\"color: #888888;\">[changed";
 982                                         if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
 983                                                 $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
 984                                         }
 985                                         if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
 986                                                 if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
 987                                                         $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
 988                                                 } elsif (S_ISREG($to_mode)) {
 989                                                         $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
 990                                                 }
 991                                         }
 992                                         $mode_chnge .= "]</span>\n";
 993                                 }
 994                                 print "<div class=\"list\">\n";
 995                                 if ($to_id ne $from_id) {
 996                                         print $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file"},
 997                                               escapeHTML($file) . $mode_chnge) . "\n" .
 998                                               "</div>\n";
 999                                 } else {
1000                                         print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$file"},
1001                                               escapeHTML($file) . $mode_chnge) . "\n" .
1002                                               "</div>\n";
1003                                 }
1004                                 print "<div class=\"link\">\n";
1005                                 if ($to_id ne $from_id) {
1006                                         print $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file"}, "diff") . " | ";
1007                                 }
1008                                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$file"}, "blob") . " | " .
1009                                       $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash;f=$file"}, "history") . "\n" .
1010                                       "</div>\n";
1011                         }
1012                 }
1013         }
1014         git_footer_html();
1015 }
1016
1017 sub git_blobdiff {
1018         mkdir($gittmp, 0700);
1019         git_header_html();
1020         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1021                 print "<div class=\"page_nav\">\n" .
1022                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base"}, "commit") .
1023                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash_base"}, "commitdiff") .
1024                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash_base"}, "tree");
1025                         if (defined $file_name) {
1026                                 print " | " . $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash_base;f=$file_name"}, "history");
1027                         }
1028                 print "<br/><br/>\n" .
1029                       "</div>\n";
1030                 print "<div>\n" .
1031                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
1032                       "</div>\n";
1033         } else {
1034                 print "<div class=\"page_nav\">\n" .
1035                       "<br/><br/></div>\n" .
1036                       "<div class=\"title\">$hash vs $hash_parent</div>\n";
1037         }
1038         if (defined $file_name) {
1039                 print "<div class=\"page_path\">\n" .
1040                       "/$file_name\n" .
1041                       "</div>\n";
1042         }
1043         print "<div class=\"page_body\">\n" .
1044               "<div class=\"diff_info\">blob:" .
1045               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name"}, $hash_parent) .
1046               " -> blob:" .
1047               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name"}, $hash) .
1048               "</div>\n";
1049         git_diff_html($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
1050         print "</div>";
1051         git_footer_html();
1052 }
1053
1054 sub git_commitdiff {
1055         mkdir($gittmp, 0700);
1056         my %co = git_read_commit($hash);
1057         if (!%co) {
1058                 die_error(undef, "Unknown commit object.");
1059         }
1060         open my $fd, "-|", "$gitbin/git-diff-tree -r " . $co{'parent'} . " $hash" || die_error(undef, "Open failed.");
1061         my (@difftree) = map { chomp; $_ } <$fd>;
1062         close $fd || die_error(undef, "Reading diff-tree failed.");
1063
1064         git_header_html();
1065         print "<div class=\"page_nav\">\n" .
1066               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | \n" .
1067               $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "commitdiff") . " | \n" .
1068               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" .  $co{'tree'} . ";hb=$hash"}, "tree") . "\n" .
1069               "<br/><br/></div>\n";
1070         print "<div>\n" .
1071               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
1072               "</div>\n";
1073         print "<div class=\"page_body\">\n";
1074         foreach my $line (@difftree) {
1075                 # '*100644->100644      blob    8e5f9bbdf4de94a1bc4b4da8cb06677ce0a57716->8da3a306d0c0c070d87048d14a033df02f40a154      Makefile'
1076                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
1077                 my $op = $1;
1078                 my $mode = $2;
1079                 my $type = $3;
1080                 my $id = $4;
1081                 my $file = $5;
1082                 if ($type eq "blob") {
1083                         if ($op eq "+") {
1084                                 print "<div class=\"diff_info\">" .  file_type($mode) . ":" .
1085                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"}, $id) . "(new)" .
1086                                       "</div>\n";
1087                                 git_diff_html(undef, "/dev/null", $id, "b/$file");
1088                         } elsif ($op eq "-") {
1089                                 print "<div class=\"diff_info\">" . file_type($mode) . ":" .
1090                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"}, $id) . "(deleted)" .
1091                                       "</div>\n";
1092                                 git_diff_html($id, "a/$file", undef, "/dev/null");
1093                         } elsif ($op eq "*") {
1094                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
1095                                 my $from_id = $1;
1096                                 my $to_id = $2;
1097                                 $mode =~ m/([0-7]+)->([0-7]+)/;
1098                                 my $from_mode = $1;
1099                                 my $to_mode = $2;
1100                                 if ($from_id ne $to_id) {
1101                                         print "<div class=\"diff_info\">" .
1102                                               file_type($from_mode) . ":" . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$from_id;hb=$hash;f=$file"}, $from_id) .
1103                                               " -> " .
1104                                               file_type($to_mode) . ":" . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$file"}, $to_id);
1105                                         print "</div>\n";
1106                                         git_diff_html($from_id, "a/$file",  $to_id, "b/$file");
1107                                 }
1108                         }
1109                 }
1110         }
1111         print "<br/>\n" .
1112               "</div>";
1113         git_footer_html();
1114 }
1115
1116 sub git_history {
1117         if (!defined $hash) {
1118                 $hash = git_read_head($project);
1119         }
1120         my %co = git_read_commit($hash);
1121         if (!%co) {
1122                 die_error(undef, "Unknown commit object.");
1123         }
1124         git_header_html();
1125         print "<div class=\"page_nav\">\n" .
1126               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | " .
1127               $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "commitdiff") . " | " .
1128               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash"}, "tree") .
1129               "<br/><br/>\n" .
1130               "</div>\n";
1131         print "<div>\n" .
1132               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
1133               "</div>\n";
1134         print "<div class=\"page_path\">\n" .
1135               "/$file_name<br/>\n";
1136         print "</div>\n";
1137         open my $fd, "-|", "$gitbin/git-rev-list $hash | $gitbin/git-diff-tree -r --stdin $file_name";
1138         my $commit;
1139         while (my $line = <$fd>) {
1140                 if ($line =~ m/^([0-9a-fA-F]{40}) /){
1141                         $commit = $1;
1142                         next;
1143                 }
1144                 if ($line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/ && (defined $commit)) {
1145                         my $type = $3;
1146                         my $file = $5;
1147                         if ($file ne $file_name || $type ne "blob") {
1148                                 next;
1149                         }
1150                         my %co = git_read_commit($commit);
1151                         if (!%co) {
1152                                 next;
1153                         }
1154                         print "<div class=\"list\">\n" .
1155                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"},
1156                               "<span class=\"log_age\">" . $co{'age_string'} . "</span>" . escapeHTML($co{'title'})) . "\n" .
1157                               "</div>\n";
1158                         print "<div class=\"link\">\n" .
1159                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "commit") .
1160                               " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" .  $co{'tree'} . ";hb=$commit"}, "tree") .
1161                               " | " . $cgi->a({-href => "$my_uri?p=$project;a=blob;hb=$commit;f=" . $file}, "blob");
1162                         my $blob = git_get_hash_by_path($hash, $file_name);
1163                         my $blob_parent = git_get_hash_by_path($commit, $file_name);
1164                         if (defined $blob && defined $blob_parent && $blob ne $blob_parent) {
1165                                 print " | " . $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$blob;hp=$blob_parent;hb=$commit;f=" . $file}, "diff");
1166                         }
1167                         print "<br/>\n" .
1168                               "</div>\n";
1169                         undef $commit;
1170                 }
1171         }
1172         close $fd;
1173         git_footer_html();
1174 }