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 file 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
  15 my $cgi = new CGI;
  16
  17 my $version =           "082";
  18 my $projectroot =       "/pub/scm";
  19 my $home_link =         "/git";
  20 my $gitbin =            "/usr/bin";
  21 my $gittmp =            "/tmp/gitweb";
  22 my $logo_link =         "/pub/software/scm/cogito";
  23 my $my_url =            $cgi->url();
  24 my $my_uri =            $cgi->url(-absolute => 1);
  25
  26 mkdir($gittmp, 0700);
  27 my $project = $cgi->param('p');
  28 my $action = $cgi->param('a');
  29 my $hash = $cgi->param('h');
  30 my $hash_parent = $cgi->param('hp');
  31 my $file_name = $cgi->param('f');
  32 my $time_back = $cgi->param('t');
  33 $ENV{'SHA1_FILE_DIRECTORY'} = "$projectroot/$project/objects";
  34
  35 # validate input
  36 if (defined($project)) {
  37         if ($project =~ /(^|\/)(|\.|\.\.)($|\/)/) {
  38                 die_error("", "Invalid project parameter.");
  39         }
  40         if (!(-d "$projectroot/$project")) {
  41                 die_error("", "No such project.");
  42         }
  43 }
  44 if (defined($file_name) && $file_name =~ /(^|\/)(|\.|\.\.)($|\/)/) {
  45         die_error("", "Invalid file parameter.");
  46 }
  47 if (defined($action) && !$action =~ m/^[0-9a-zA-Z\.\-]+$/) {
  48         die_error("", "Invalid action parameter.");
  49 }
  50 if (defined($hash) && !($hash =~ m/^[0-9a-fA-F]{40}$/)) {
  51         die_error("", "Invalid hash parameter.");
  52 }
  53 if (defined($hash_parent) && !($hash_parent =~ m/^[0-9a-fA-F]{40}$/)) {
  54         die_error("", "Invalid parent hash parameter.");
  55 }
  56 if (defined($time_back) && !($time_back =~ m/^[0-9]+$/)) {
  57         die_error("", "Invalid time parameter.");
  58 }
  59
  60 sub git_header_html {
  61         my $status = shift || "200 OK";
  62
  63         print $cgi->header(-type=>'text/html',  -charset => 'utf-8', -status=> $status);
  64         print <<EOF;
  65 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
  66 <html>
  67 <head>
  68         <title>git - $project $action</title>
  69         <link rel="alternate" title="$project log" href="$my_uri?p=$project;a=rss" type="application/rss+xml"/>
  70         <style type="text/css">
  71         body { font-family: sans-serif; font-size: 12px; margin:0px; }
  72         a { color:#0000cc; }
  73         a:hover { color:#880000; }
  74         a:visited { color:#880000; }
  75         a:active { color:#880000; }
  76         div.page_header {
  77                 margin:15px 25px 0px; height:25px; padding:8px;
  78                 font-size:18px; font-weight:bold; background-color:#d9d8d1;
  79         }
  80         div.page_header a:visited { color:#0000cc; }
  81         div.page_header a:hover { color:#880000; }
  82         div.page_nav { margin:0px 25px; padding:8px; border:solid #d9d8d1; border-width:0px 1px; }
  83         div.page_nav a:visited { color:#0000cc; }
  84         div.page_footer {
  85                 margin:0px 25px 15px; height:17px; padding:4px; padding-left:8px;
  86                 background-color: #d9d8d1;
  87         }
  88         div.page_footer_text { float:left; color:#888888; font-size:10px;}
  89         div.page_body { margin:0px 25px; padding:8px; border:solid #d9d8d1; border-width:0px 1px; }
  90         div.title {
  91                 display:block; margin:0px 25px; padding:8px;
  92                 font-weight:bold; background-color:#d9d8d1; color:#000000;
  93         }
  94         a.title {
  95                 display:block; margin:0px 25px; padding:6px 8px;
  96                 font-weight:bold; background-color:#edece6; text-decoration:none; color:#000000;
  97         }
  98         a.title:hover { background-color: #d9d8d1; }
  99         div.title2 {
 100                 margin:0px 25px; padding:6px 8px;
 101                 border: solid #d9d8d1; border-width:0px 1px 1px;
 102         }
 103         div.log_body {
 104                 margin:0px 25px; padding:8px; padding-left:150px;
 105                 border:solid #d9d8d1; border-width:0px 1px;
 106         }
 107         span.log_age { position:relative; float:left; width:142px; font-style:italic; }
 108         div.log_link { font-size:10px; font-family:sans-serif; font-style:normal; position:relative; float:left; width:142px; }
 109         div.list {
 110                 display:block; margin:0px 25px; padding:4px 6px 0px; border:solid #d9d8d1; border-width:1px 1px 0px;
 111                 font-weight:bold;
 112         }
 113         div.list a { text-decoration:none; color:#000000; }
 114         div.list a:hover { color:#880000; }
 115         div.link { margin:0px 25px; padding:0px 6px; border:solid #d9d8d1; border-width:0px 1px; font-family:sans-serif; font-size:10px; }
 116         td.key { padding-right:10px;  }
 117         a.xml_logo { float:right; border:1px solid;
 118                 line-height:15px;
 119                 border-color:#fcc7a5 #7d3302 #3e1a01 #ff954e; width:35px;
 120                 color:#ffffff; background-color:#ff6600;
 121                 font-weight:bold; font-family:sans-serif; text-align:center;
 122                 font-size:10px; display:block; text-decoration:none;
 123         }
 124         a.xml_logo:hover { background-color:#ee5500; }
 125         </style>
 126 </head>
 127 <body>
 128 EOF
 129         print "<div class=\"page_header\">\n" .
 130               "<a href=\"$logo_link\">" .
 131               "<img src=\"$my_uri?a=git-logo.png\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/></a>";
 132         print $cgi->a({-href => "$my_uri"}, "projects") . " / ";
 133         if ($project ne "") {
 134                 print $cgi->a({-href => "$my_uri?p=$project;a=log"}, escapeHTML($project));
 135         }
 136         if ($action ne "") {
 137                 print " / $action";
 138         }
 139         print "</div>\n";
 140 }
 141
 142 sub git_footer_html {
 143         print "<div class=\"page_footer\">";
 144         print "<div class=\"page_footer_text\">version $version</div>";
 145         if ($project ne '') {
 146                 print $cgi->a({-href => "$my_uri?p=$project;a=rss", -class => "xml_logo"}, "XML") . "\n";
 147         }
 148         print "</div>" .
 149               "</body>" .
 150               "</html>";
 151 }
 152
 153 sub die_error {
 154         my $status = shift || "403 Forbidden";
 155         my $error = shift || "Malformed query, file missing or permission denied";
 156
 157         $project = "";
 158         $action = "";
 159         git_header_html($status);
 160         print "<div class=\"page_body\">\n" .
 161               "<br/><br/>\n";
 162         print "$error\n";
 163         print "<br/></div>\n";
 164         git_footer_html();
 165         exit 0;
 166 }
 167
 168 sub git_head {
 169         my $path = shift;
 170         open(my $fd, "$projectroot/$path/HEAD") || die_error("", "Invalid project directory.");;
 171         my $head = <$fd>;
 172         close $fd;
 173         chomp $head;
 174         return $head;
 175 }
 176
 177 sub git_commit {
 178         my $commit = shift;
 179         my %co;
 180         my @parents;
 181
 182         open my $fd, "-|", "$gitbin/cat-file commit $commit";
 183         while (my $line = <$fd>) {
 184                 chomp($line);
 185                 last if $line eq "";
 186                 if ($line =~ m/^tree (.*)$/) {
 187                         $co{'tree'} = $1;
 188                 } elsif ($line =~ m/^parent (.*)$/) {
 189                         push @parents, $1;
 190                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 191                         $co{'author'} = $1;
 192                         $co{'author_epoch'} = $2;
 193                         $co{'author_tz'} = $3;
 194                         $co{'author_name'} = $co{'author'};
 195                         $co{'author_name'} =~ s/ <.*//;
 196                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 197                         $co{'committer'} = $1;
 198                         $co{'committer_epoch'} = $2;
 199                         $co{'committer_tz'} = $3;
 200                         $co{'committer_name'} = $co{'committer'};
 201                         $co{'committer_name'} =~ s/ <.*//;
 202                 }
 203         }
 204         if (!defined($co{'tree'})) {
 205                 return;
 206         }
 207         $co{'parents'} = \@parents;
 208         $co{'parent'} = $parents[0];
 209         my (@comment) = map { chomp; $_ } <$fd>;
 210         $co{'comment'} = \@comment;
 211         $co{'title'} = $comment[0];
 212         close $fd;
 213
 214         my $age = time - $co{'committer_epoch'};
 215         $co{'age'} = $age;
 216         if ($age > 60*60*24*365*2) {
 217                 $co{'age_string'} = (int $age/60/60/24/365);
 218                 $co{'age_string'} .= " years ago";
 219         } elsif ($age > 60*60*24*365/12*2) {
 220                 $co{'age_string'} = int $age/60/60/24/365/12;
 221                 $co{'age_string'} .= " months ago";
 222         } elsif ($age > 60*60*24*7*2) {
 223                 $co{'age_string'} = int $age/60/60/24/7;
 224                 $co{'age_string'} .= " weeks ago";
 225         } elsif ($age > 60*60*24*2) {
 226                 $co{'age_string'} = int $age/60/60/24;
 227                 $co{'age_string'} .= " days ago";
 228         } elsif ($age > 60*60*2) {
 229                 $co{'age_string'} = int $age/60/60;
 230                 $co{'age_string'} .= " hours ago";
 231         } elsif ($age > 60*2) {
 232                 $co{'age_string'} = int $age/60;
 233                 $co{'age_string'} .= " minutes ago";
 234         }
 235         return %co;
 236 }
 237
 238 sub git_diff_html {
 239         my $from_name = shift || "/dev/null";
 240         my $to_name = shift || "/dev/null";
 241         my $from = shift;
 242         my $to = shift;
 243
 244         my $from_tmp = "/dev/null";
 245         my $to_tmp = "/dev/null";
 246         my $from_label = "/dev/null";
 247         my $to_label = "/dev/null";
 248         my $pid = $$;
 249
 250         # create tmp from-file
 251         if ($from ne "") {
 252                 $from_tmp = "$gittmp/gitweb_" . $$ . "_from";
 253                 open(my $fd2, "> $from_tmp");
 254                 open my $fd, "-|", "$gitbin/cat-file blob $from";
 255                 my @file = <$fd>;
 256                 print $fd2 @file;
 257                 close $fd2;
 258                 close $fd;
 259                 $from_label = "a/$from_name";
 260         }
 261
 262         # create tmp to-file
 263         if ($to ne "") {
 264                 $to_tmp = "$gittmp/gitweb_" . $$ . "_to";
 265                 open my $fd2, "> $to_tmp";
 266                 open my $fd, "-|", "$gitbin/cat-file blob $to";
 267                 my @file = <$fd>;
 268                 print $fd2 @file;
 269                 close $fd2;
 270                 close $fd;
 271                 $to_label = "b/$to_name";
 272         }
 273
 274         open my $fd, "-|", "/usr/bin/diff -u -p -L $from_label -L $to_label $from_tmp $to_tmp";
 275         print "<span style=\"color: #000099;\">===== ";
 276         if ($from ne "") {
 277                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$from"}, $from);
 278         } else {
 279                 print $from_name;
 280         }
 281         print " vs ";
 282         if ($to ne "") {
 283                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to"}, $to);
 284         } else {
 285                 print $to_name;
 286         }
 287         print " =====</span>\n";
 288         while (my $line = <$fd>) {
 289                 my $char = substr($line,0,1);
 290                 print '<span style="color: #008800;">' if $char eq '+';
 291                 print '<span style="color: #CC0000;">' if $char eq '-';
 292                 print '<span style="color: #990099;">' if $char eq '@';
 293                 print escapeHTML($line);
 294                 print '</span>' if $char eq '+' or $char eq '-' or $char eq '@';
 295         }
 296         close $fd;
 297
 298         if ($from ne "") {
 299                 unlink("$from_tmp");
 300         }
 301         if ($to ne "") {
 302                 unlink("$to_tmp");
 303         }
 304 }
 305
 306 sub mode_str {
 307         my $perms = oct shift;
 308         my $modestr;
 309         if ($perms & 040000) {
 310                 $modestr .= 'drwxr-xr-x';
 311         } else {
 312                 # git cares only about the executable bit
 313                 if ($perms & 0100) {
 314                         $modestr .= '-rwxr-xr-x';
 315                 } else {
 316                         $modestr .= '-rw-r--r--';
 317                 };
 318         }
 319         return $modestr;
 320 }
 321
 322 sub date_str {
 323         my $epoch = shift;
 324         my $tz = shift || "-0000";
 325
 326         my %date;
 327         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 328         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 329         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 330         $date{'hour'} = $hour;
 331         $date{'minute'} = $min;
 332         $date{'mday'} = $mday;
 333         $date{'day'} = $days[$wday];
 334         $date{'month'} = $months[$mon];
 335         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 336         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 337
 338         $tz =~ m/((-|\+)[0-9][0-9])([0-9][0-9])/;
 339         my $local = $epoch + (($1 + ($2/60)) * 3600);
 340         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 341         $date{'hour_local'} = $hour;
 342         $date{'minute_local'} = $min;
 343         $date{'tz_local'} = $tz;
 344         return %date;
 345 }
 346
 347 if ($action eq "git-logo.png") {
 348         print $cgi->header(-type => 'image/png', -expires => '+1d');
 349         print   "\211\120\116\107\015\012\032\012\000\000\000\015\111\110\104\122".
 350                 "\000\000\000\110\000\000\000\033\004\003\000\000\000\055\331\324".
 351                 "\055\000\000\000\030\120\114\124\105\377\377\377\140\140\135\260".
 352                 "\257\252\000\200\000\316\315\307\300\000\000\350\350\346\367\367".
 353                 "\366\225\014\247\107\000\000\000\163\111\104\101\124\050\317\143".
 354                 "\110\147\040\004\112\134\030\012\010\052\142\123\141\040\002\010".
 355                 "\015\151\105\254\241\241\001\060\014\223\140\066\046\122\221\261".
 356                 "\001\021\326\341\125\144\154\154\314\154\154\014\242\014\160\052".
 357                 "\142\006\052\301\142\035\263\001\002\123\244\010\350\000\003\030".
 358                 "\046\126\021\324\341\040\227\033\340\264\016\065\044\161\051\202".
 359                 "\231\060\270\223\012\021\271\105\210\301\215\240\242\104\041\006".
 360                 "\047\101\202\100\205\301\105\211\040\160\001\000\244\075\041\305".
 361                 "\022\034\232\376\000\000\000\000\111\105\116\104\256\102\140\202";
 362         exit;
 363 }
 364
 365 if (!defined($project)) {
 366         print $cgi->redirect($home_link);
 367         exit;
 368 }
 369
 370 if (!defined($action)) {
 371         $action = "log";
 372 }
 373
 374 if (!defined($time_back)) {
 375         $time_back = 1;
 376 }
 377
 378 if ($action eq "blob") {
 379         git_header_html();
 380         print "<div class=\"page_nav\">\n";
 381         print "<br/><br/></div>\n";
 382         print "<div class=\"title\">$hash</div>\n";
 383         print "<div class=\"page_body\"><pre>\n";
 384         open(my $fd, "-|", "$gitbin/cat-file blob $hash");
 385         my $nr;
 386         while (my $line = <$fd>) {
 387                 $nr++;
 388                 printf "<span style =\"color: #999999;\">%4i\t</span>%s", $nr, escapeHTML($line);;
 389         }
 390         close $fd;
 391         print "<br/></pre>\n";
 392         print "</div>";
 393         git_footer_html();
 394 } elsif ($action eq "tree") {
 395         if ($hash eq "") {
 396                 $hash = git_head($project);
 397         }
 398         open my $fd, "-|", "$gitbin/ls-tree $hash";
 399         my (@entries) = map { chomp; $_ } <$fd>;
 400         close $fd;
 401
 402         git_header_html();
 403         my %co = git_commit($hash);
 404         if (defined(%co)) {
 405                 print "<div class=\"page_nav\"> view\n" .
 406                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | \n" .
 407                       $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diffs") . " | \n" .
 408                       $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash"}, "tree") . "\n" .
 409                       "<br/><br/></div>\n";
 410                 print "<div>\n" .
 411                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
 412                       "</div>\n";
 413         } else {
 414                 print "<div class=\"page_nav\">\n";
 415                 print "<br/><br/></div>\n";
 416                 print "<div class=\"title\">$hash</div>\n";
 417         }
 418         print "<div class=\"page_body\">\n";
 419         print "<br/><pre>\n";
 420         foreach my $line (@entries) {
 421                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
 422                 $line =~ m/^([0-9]+)\t(.*)\t(.*)\t(.*)$/;
 423                 my $t_mode = $1;
 424                 my $t_type = $2;
 425                 my $t_hash = $3;
 426                 my $t_name = $4;
 427                 if ($t_type eq "blob") {
 428                         print mode_str($t_mode). " " . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$t_hash"}, $t_name) . "\n";
 429                 } elsif ($t_type eq "tree") {
 430                         print mode_str($t_mode). " " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$t_hash"}, $t_name) . "\n";
 431                 }
 432         }
 433         print "</pre>\n";
 434         print "<br/></div>";
 435         git_footer_html();
 436 } elsif ($action eq "log" || $action eq "rss") {
 437         open my $fd, "-|", "$gitbin/rev-list " . git_head($project);
 438         my (@revlist) = map { chomp; $_ } <$fd>;
 439         close $fd;
 440
 441         if ($action eq "log") {
 442                 git_header_html();
 443                 print "<div class=\"page_nav\">\n";
 444                 print "view  ";
 445                 print $cgi->a({-href => "$my_uri?p=$project;a=log"}, "last day") . " | \n" .
 446                       $cgi->a({-href => "$my_uri?p=$project;a=log;t=7"}, "week") . " | \n" .
 447                       $cgi->a({-href => "$my_uri?p=$project;a=log;t=31"}, "month") . " | \n" .
 448                       $cgi->a({-href => "$my_uri?p=$project;a=log;t=365"}, "year") . " | \n" .
 449                       $cgi->a({-href => "$my_uri?p=$project;a=log;t=0"}, "all") . "<br/>\n";
 450                 print "<br/><br/>\n" .
 451                       "</div>\n";
 452         } elsif ($action eq "rss") {
 453                 print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
 454                 print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
 455                       "<rss version=\"0.91\">\n";
 456                 print "<channel>\n";
 457                 print "<title>$project</title>\n".
 458                       "<link> " . $my_url . "/$project/log</link>\n".
 459                       "<description>$project log</description>\n".
 460                       "<language>en</language>\n";
 461         }
 462
 463         for (my $i = 0; $i <= $#revlist; $i++) {
 464                 my $commit = $revlist[$i];
 465                 my %co = git_commit($commit);
 466                 my %ad = date_str($co{'author_epoch'});
 467                 if ($action eq "log") {
 468                 if ($time_back > 0 && $co{'age'} > $time_back*60*60*24) {
 469                                 if ($i == 0) {
 470                                         print "<div class=\"page_body\"> Last change " . $co{'age_string'} . ".<br/><br/></div>\n";
 471                                 }
 472                                 last;
 473                         }
 474                         print "<div>\n" .
 475                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit", -class => "title"},
 476                               "<span class=\"log_age\">" . $co{'age_string'} . "</span>" . escapeHTML($co{'title'})) . "\n" .
 477                               "</div>\n";
 478                         print "<div class=\"title2\">\n" .
 479                               "<div class=\"log_link\">\n" .
 480                               "view " . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "commit") . " | " .
 481                               $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$commit"}, "diff") . "<br/>\n" .
 482                               "</div>\n" .
 483                               "<i>" . escapeHTML($co{'author_name'}) .  " [" . $ad{'rfc2822'} . "]</i><br/>\n" .
 484                               "</div>\n" .
 485                               "<div class=\"log_body\">\n";
 486                         my $comment = $co{'comment'};
 487                         foreach my $line (@$comment) {
 488                                 last if ($line =~ m/^(signed-off|acked)-by:/i);
 489                                 print escapeHTML($line) . "<br/>\n";
 490                         }
 491                         print "<br/>\n" .
 492                               "</div>\n";
 493                 } elsif ($action eq "rss") {
 494                         last if ($i >= 20);
 495                         print "<item>\n" .
 496                               "\t<title>" . sprintf("%d %s %02d:%02d", $ad{'mday'}, $ad{'month'}, $ad{'hour'}, $ad{'min'}) . " - " . escapeHTML($co{'title'}) . "</title>\n" .
 497                               "\t<link> " . $my_url . "?p=$project;a=commit;h=$commit</link>\n" .
 498                               "\t<description>";
 499                         my $comment = $co{'comment'};
 500                         foreach my $line (@$comment) {
 501                                 print escapeHTML($line) . "\n";
 502                         }
 503                         print "\t</description>\n" .
 504                               "</item>\n";
 505                 }
 506         }
 507         if ($action eq "log") {
 508                 git_footer_html();
 509         } elsif ($action eq "rss") {
 510                 print "</channel></rss>";
 511         }
 512 } elsif ($action eq "commit") {
 513         my %co = git_commit($hash);
 514         if (!defined(%co)) {
 515                 die_error("", "Unknown commit object.");
 516         }
 517         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
 518         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
 519         open my $fd, "-|", "$gitbin/diff-tree -r " . $co{'parent'} . " $hash";
 520         my (@difftree) = map { chomp; $_ } <$fd>;
 521         close $fd;
 522
 523         git_header_html();
 524         print "<div class=\"page_nav\"> view\n" .
 525               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | \n" .
 526               $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diffs") . " | \n" .
 527               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash"}, "tree") . "\n" .
 528               "<br/><br/></div>\n";
 529         print "<div>\n" .
 530               $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
 531               "</div>\n";
 532         print "<div class=\"title2\">\n" .
 533               "<table cellspacing=\"0\">";
 534         print "<tr><td class=\"key\">author</td><td>" . escapeHTML($co{'author'}) . "</td><tr><td></td><td>" .
 535               " " . $ad{'rfc2822'};
 536         if ($ad{'hour_local'} < 6) {
 537                 print "<span style=\"color: #cc0000;\">";
 538         }
 539         printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
 540         if ($ad{'hour_local'} < 6 ) {
 541                 print "</span>";
 542         }
 543         print "</i>\n" .
 544               "</td></tr>\n";
 545         print "<tr><td class=\"key\">committer</td><td>" . escapeHTML($co{'committer'}) . "</td><tr><td></td><td>" .
 546               " " . $cd{'rfc2822'} . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</i>\n" .
 547               "</td></tr>\n";
 548         print "<tr><td class=\"key\">commit</td><td style=\"font-family: monospace;\">$hash</td></tr>\n";
 549         print "<tr><td class=\"key\">tree</td><td style=\"font-family: monospace;\">" . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash"}, $co{'tree'}) . "</td></tr>\n";
 550         my $parents  = $co{'parents'};
 551         foreach my $par (@$parents) {
 552                 print "<tr><td class=\"key\">parent</td><td style=\"font-family: monospace;\">" . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$par"}, $par) . "</td></tr>\n";
 553         }
 554         print "</table></div>\n";
 555         print "<div class=\"page_body\">\n";
 556         my $comment = $co{'comment'};
 557         foreach my $line (@$comment) {
 558                 if ($line =~ m/(signed-off|acked)-by:/i) {
 559                         print "<span style=\"color: #888888\">" . escapeHTML($line) . "</span><br/>\n";
 560                 } else {
 561                         print escapeHTML($line) . "<br/>\n";
 562                 }
 563         }
 564         print "</div>\n";
 565         foreach my $line (@difftree) {
 566                 # '*100644->100644      blob    9f91a116d91926df3ba936a80f020a6ab1084d2b->bb90a0c3a91eb52020d0db0e8b4f94d30e02d596      net/ipv4/route.c'
 567                 # '+100644      blob    4a83ab6cd565d21ab0385bac6643826b83c2fcd4        arch/arm/lib/bitops.h'
 568                 # '*100664->100644      blob    b1a8e3dd5556b61dd771d32307c6ee5d7150fa43->b1a8e3dd5556b61dd771d32307c6ee5d7150fa43      show-files.c'
 569                 # '*100664->100644      blob    d08e895238bac36d8220586fdc28c27e1a7a76d3->d08e895238bac36d8220586fdc28c27e1a7a76d3      update-cache.c'
 570                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 571                 my $op = $1;
 572                 my $mode = $2;
 573                 my $type = $3;
 574                 my $id = $4;
 575                 my $file = $5;
 576                 my $mode_chng = "";
 577                 if ($type eq "blob") {
 578                         if ($op eq "+") {
 579                                 print "<div class=\"list\">\n" .
 580                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"},
 581                                       escapeHTML($file) . " <span style=\"color: #008000;\">[new]</span>") . "\n" .
 582                                       "</div>";
 583                                 print "<div class=\"link\">\n" .
 584                                       "view " .
 585                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"}, "file") . "<br/><br/>\n" .
 586                                       "</div>\n";
 587                         } elsif ($op eq "-") {
 588                                 print "<div class=\"list\">\n" .
 589                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"},
 590                                       escapeHTML($file) .  " <span style=\"color: #c00000;\">[removed]</span>") . "\n" .
 591                                       "</div>";
 592                                 print "<div class=\"link\">\n" .
 593                                       "view " .
 594                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"}, "file") . " | " .
 595                                       $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash;f=$file"}, "history") . "<br/><br/>\n" .
 596                                       "</div>\n";
 597                         } elsif ($op eq "*") {
 598                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
 599                                 my $from_id = $1;
 600                                 my $to_id = $2;
 601                                 $mode =~ m/^([0-7]{6})->([0-7]{6})$/;
 602                                 my $from_mode = $1;
 603                                 my $to_mode = $2;
 604                                 my $mode_chnge = "";
 605                                 if ($from_mode != $to_mode) {
 606                                         $mode_chnge = " <span style=\"color: #888888;\"> [chmod $mode]</span>\n";
 607                                 }
 608                                 print "<div class=\"list\">\n";
 609                                 if ($to_id ne $from_id) {
 610                                         print $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id"},
 611                                               escapeHTML($file) . $mode_chnge) . "\n" .
 612                                               "</div>\n";
 613                                 } else {
 614                                         print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id"},
 615                                               escapeHTML($file) . $mode_chnge) . "\n" .
 616                                               "</div>\n";
 617                                 }
 618                                 print "<div class=\"link\">\n" .
 619                                       "view ";
 620                                 if ($to_id ne $from_id) {
 621                                         print $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id"}, "diff") . " | ";
 622                                 }
 623                                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id"}, "file") . " | " .
 624                                       $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash;f=$file"}, "history") . "<br/><br/>\n" .
 625                                       "</div>\n";
 626                         }
 627                 }
 628         }
 629         git_footer_html();
 630 } elsif ($action eq "blobdiff") {
 631         git_header_html();
 632         print "<div class=\"page_nav\">\n";
 633         print "<br/><br/></div>\n";
 634         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
 635         print "<div class=\"page_body\">\n" .
 636               "<pre>\n";
 637         git_diff_html($hash_parent, $hash, $hash_parent, $hash);
 638         print "</pre>\n" .
 639               "<br/></div>";
 640         git_footer_html();
 641 } elsif ($action eq "commitdiff") {
 642         my %co = git_commit($hash);
 643         if (!defined(%co)) {
 644                 die_error("", "Unknown commit object.");
 645         }
 646         open my $fd, "-|", "$gitbin/diff-tree -r " . $co{'parent'} . " $hash";
 647         my (@difftree) = map { chomp; $_ } <$fd>;
 648         close $fd;
 649
 650         git_header_html();
 651         print "<div class=\"page_nav\"> view\n" .
 652               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | \n" .
 653               $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diffs") . " | \n" .
 654               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash"}, "tree") . "\n" .
 655               "<br/><br/></div>\n";
 656         print "<div>\n" .
 657               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
 658               "</div>\n";
 659         print "<div class=\"page_body\">\n" .
 660               "<pre>\n";
 661         foreach my $line (@difftree) {
 662                 # '*100644->100644      blob    8e5f9bbdf4de94a1bc4b4da8cb06677ce0a57716->8da3a306d0c0c070d87048d14a033df02f40a154      Makefile'
 663                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 664                 my $op = $1;
 665                 my $mode = $2;
 666                 my $type = $3;
 667                 my $id = $4;
 668                 my $file = $5;
 669                 if ($type eq "blob") {
 670                         if ($op eq "+") {
 671                                 git_diff_html("", $file, "", $id);
 672                         } elsif ($op eq "-") {
 673                                 git_diff_html($file, "", $id, "");
 674                         } elsif ($op eq "*") {
 675                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
 676                                 if ($1 ne $2) {
 677                                         git_diff_html($file, $file, $1, $2);
 678                                 }
 679                         }
 680                 }
 681         }
 682         print "<br/></pre>\n";
 683         print "</div>";
 684         git_footer_html();
 685 } elsif ($action eq "history") {
 686         if (!(defined($hash))) {
 687                 $hash = git_head($project);
 688         }
 689         open my $fd, "-|", "$gitbin/rev-list $hash";
 690         my (@revlist) = map { chomp; $_ } <$fd>;
 691         close $fd;
 692
 693         git_header_html();
 694         print "<div class=\"page_nav\">\n";
 695         print "<br/><br/></div>\n";
 696         print "<div>\n" .
 697               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($file_name)) . "\n" .
 698               "</div>\n";
 699         foreach my $rev (@revlist) {
 700                 my %co = git_commit($rev);
 701                 my $parents  = $co{'parents'};
 702                 my $found = 0;
 703                 foreach my $parent (@$parents) {
 704                         open $fd, "-|", "$gitbin/diff-tree -r $parent $rev $file_name";
 705                         my (@difftree) = map { chomp; $_ } <$fd>;
 706                         close $fd;
 707
 708                         foreach my $line (@difftree) {
 709                                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 710                                 my $file = $5;
 711                                 if ($file eq $file_name) {
 712                                         $found = 1;
 713                                         last;
 714                                 }
 715                         }
 716                 }
 717                 if ($found) {
 718                         print "<div class=\"list\">\n" .
 719                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$rev"},
 720                               "<span class=\"log_age\">" . $co{'age_string'} . "</span>" . escapeHTML($co{'title'})) . "\n" .
 721                               "</div>\n";
 722                         print "<div class=\"link\">\n" .
 723                               "view " .
 724                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$rev"}, "commit") . " | " .
 725                               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$rev"}, "tree") . "<br/><br/>\n" .
 726                               "</div>\n";
 727                 }
 728         }
 729         git_footer_html();
 730 } else {
 731         die_error("", "Unknown action.");
 732 }