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 # !! This devel-version uses a modified git-rev-list binary !!
  18 # The git changes are expected to show up upstream soon.
  19
  20 # begin config
  21 my $projectroot =       "/pub/scm";
  22 $projectroot =  "/home/kay/public_html/pub/scm";
  23 my $home_link =         "/git";
  24 $home_link =            "/~kay/git";
  25 my $gitbin =            "/usr/bin";
  26 my $gittmp =            "/tmp/gitweb";
  27 my $logo_link =         "/pub/software/scm/cogito";
  28 $logo_link =            "/~kay/pub/software/scm/cogito";
  29 # end config
  30
  31 my $version =           "088-devel";
  32 my $my_url =            $cgi->url();
  33 my $my_uri =            $cgi->url(-absolute => 1);
  34 my $rss_link = "";
  35
  36 my $project = $cgi->param('p');
  37 if (defined($project)) {
  38         if ($project =~ /(^|\/)(|\.|\.\.)($|\/)/) {
  39                 $project = "";
  40                 die_error("", "Invalid project parameter.");
  41         }
  42         if (!(-d "$projectroot/$project")) {
  43                 $project = "";
  44                 die_error("", "No such project.");
  45         }
  46         $rss_link = "<link rel=\"alternate\" title=\"$project log\" href=\"$my_uri?p=$project;a=rss\" type=\"application/rss+xml\"/>";
  47         $ENV{'SHA1_FILE_DIRECTORY'} = "$projectroot/$project/objects";
  48 }
  49
  50 my $file_name = $cgi->param('f');
  51 if (defined($file_name) && $file_name =~ /(^|\/)(|\.|\.\.)($|\/)/) {
  52         $file_name = "";
  53         die_error("", "Invalid file parameter.");
  54 }
  55
  56 my $action = $cgi->param('a');
  57 if (defined($action) && $action =~ m/[^0-9a-zA-Z\.\-]+$/) {
  58         $action = "";
  59         die_error("", "Invalid action parameter.");
  60 }
  61
  62 my $hash = $cgi->param('h');
  63 if (defined($hash) && !($hash =~ m/^[0-9a-fA-F]{40}$/)) {
  64         $hash = "";
  65         die_error("", "Invalid hash parameter.");
  66 }
  67
  68 my $hash_parent = $cgi->param('hp');
  69 if (defined($hash_parent) && !($hash_parent =~ m/^[0-9a-fA-F]{40}$/)) {
  70         $hash_parent = "";
  71         die_error("", "Invalid parent hash parameter.");
  72 }
  73
  74 my $time_back = $cgi->param('t');
  75 if (defined($time_back) && !($time_back =~ m/^[0-9]+$/)) {
  76         $time_back = "";
  77         die_error("", "Invalid time parameter.");
  78 }
  79
  80 mkdir($gittmp, 0700);
  81
  82 sub git_header_html {
  83         my $status = shift || "200 OK";
  84
  85         print $cgi->header(-type=>'text/html',  -charset => 'utf-8', -status=> $status);
  86         print <<EOF;
  87 <?xml version="1.0" encoding="utf-8"?>
  88 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
  89 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
  90 <!-- git web interface v$version, (C) 2005, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke <ch\@gierke.de> -->
  91 <head>
  92 <title>git - $project</title>
  93 $rss_link
  94 <style type="text/css">
  95 body { font-family: sans-serif; font-size: 12px; margin:0px; }
  96 a { color:#0000cc; }
  97 a:hover { color:#880000; }
  98 a:visited { color:#880000; }
  99 a:active { color:#880000; }
 100 div.page_header {
 101         margin:15px 25px 0px; height:25px; padding:8px;
 102         font-size:18px; font-weight:bold; background-color:#d9d8d1;
 103 }
 104 div.page_header a:visited { color:#0000cc; }
 105 div.page_header a:hover { color:#880000; }
 106 div.page_nav { margin:0px 25px; padding:8px; border:solid #d9d8d1; border-width:0px 1px; }
 107 div.page_nav a:visited { color:#0000cc; }
 108 div.page_footer { margin:0px 25px 15px; height:17px; padding:4px; padding-left:8px; background-color: #d9d8d1; }
 109 div.page_footer_text { float:left; color:#555555; font-style:italic; }
 110 div.page_body { margin:0px 25px; padding:8px; border:solid #d9d8d1; border-width:0px 1px; }
 111 div.title, a.title {
 112         display:block; margin:0px 25px; padding:6px 8px;
 113         font-weight:bold; background-color:#edece6; text-decoration:none; color:#000000;
 114 }
 115 a.title:hover { background-color: #d9d8d1; }
 116 div.title_text { margin:0px 25px; padding:6px 8px; border: solid #d9d8d1; border-width:0px 1px 1px; }
 117 div.log_body { margin:0px 25px; padding:8px; padding-left:150px; border:solid #d9d8d1; border-width:0px 1px; }
 118 span.log_age { position:relative; float:left; width:142px; font-style:italic; }
 119 div.log_link { font-size:10px; font-family:sans-serif; font-style:normal; position:relative; float:left; width:142px; }
 120 div.list {
 121         display:block; margin:0px 25px; padding:4px 6px 2px; border:solid #d9d8d1; border-width:1px 1px 0px;
 122         font-weight:bold;
 123 }
 124 div.list_head {
 125         display:block; margin:0px 25px; padding:4px 6px 4px; border:solid #d9d8d1; border-width:1px 1px 0px;
 126         font-style:italic;
 127 }
 128 div.list a { text-decoration:none; color:#000000; }
 129 div.list a:hover { color:#880000; }
 130 div.link {
 131         margin:0px 25px; padding:0px 6px 8px; border:solid #d9d8d1; border-width:0px 1px;
 132         font-family:sans-serif; font-size:10px;
 133 }
 134 td.key { padding-right:10px;  }
 135 a.xml_logo { float:right; border:1px solid;
 136         line-height:15px;
 137         border-color:#fcc7a5 #7d3302 #3e1a01 #ff954e; width:35px;
 138         color:#ffffff; background-color:#ff6600;
 139         font-weight:bold; font-family:sans-serif; text-align:center;
 140         font-size:10px; display:block; text-decoration:none;
 141 }
 142 a.xml_logo:hover { background-color:#ee5500; }
 143 </style>
 144 </head>
 145 <body>
 146 EOF
 147         print "<div class=\"page_header\">\n" .
 148               "<a href=\"$logo_link\">" .
 149               "<img src=\"$my_uri?a=git-logo.png\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/></a>";
 150         print $cgi->a({-href => "$my_uri"}, "projects") . " / ";
 151         if ($project ne "") {
 152                 print $cgi->a({-href => "$my_uri?p=$project;a=log"}, escapeHTML($project));
 153         }
 154         if ($action ne "") {
 155                 print " / $action";
 156         }
 157         print "</div>\n";
 158 }
 159
 160 sub git_footer_html {
 161         print "<div class=\"page_footer\">\n";
 162         if ($project ne "") {
 163                 if (-e "$projectroot/$project/description") {
 164                         open(my $fd, "$projectroot/$project/description");
 165                         my $descr = <$fd>;
 166                         print "<div class=\"page_footer_text\">" . escapeHTML($descr) . "</div>\n";
 167                         close $fd;
 168                 }
 169                 print $cgi->a({-href => "$my_uri?p=$project;a=rss", -class => "xml_logo"}, "RSS") . "\n";
 170         }
 171         print "</div>\n" .
 172               "</body>\n" .
 173               "</html>";
 174 }
 175
 176 sub die_error {
 177         my $status = shift || "403 Forbidden";
 178         my $error = shift || "Malformed query, file missing or permission denied";
 179
 180         git_header_html($status);
 181         print "<div class=\"page_body\">\n" .
 182               "<br/><br/>\n";
 183         print "$status - $error\n";
 184         print "<br/></div>\n";
 185         git_footer_html();
 186         exit 0;
 187 }
 188
 189 sub git_head {
 190         my $path = shift;
 191         open(my $fd, "$projectroot/$path/HEAD") || die_error("", "Invalid project directory.");
 192         my $head = <$fd>;
 193         close $fd;
 194         chomp $head;
 195         return $head;
 196 }
 197
 198 sub git_commit {
 199         my $commit = shift;
 200         my %co;
 201         my @parents;
 202
 203         open my $fd, "-|", "$gitbin/git-cat-file commit $commit";
 204         while (my $line = <$fd>) {
 205                 chomp($line);
 206                 last if $line eq "";
 207                 if ($line =~ m/^tree (.*)$/) {
 208                         $co{'tree'} = $1;
 209                 } elsif ($line =~ m/^parent (.*)$/) {
 210                         push @parents, $1;
 211                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 212                         $co{'author'} = $1;
 213                         $co{'author_epoch'} = $2;
 214                         $co{'author_tz'} = $3;
 215                         $co{'author_name'} = $co{'author'};
 216                         $co{'author_name'} =~ s/ <.*//;
 217                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 218                         $co{'committer'} = $1;
 219                         $co{'committer_epoch'} = $2;
 220                         $co{'committer_tz'} = $3;
 221                         $co{'committer_name'} = $co{'committer'};
 222                         $co{'committer_name'} =~ s/ <.*//;
 223                 }
 224         }
 225         if (!defined($co{'tree'})) {
 226                 return;
 227         }
 228         $co{'parents'} = \@parents;
 229         $co{'parent'} = $parents[0];
 230         my (@comment) = map { chomp; $_ } <$fd>;
 231         $co{'comment'} = \@comment;
 232         $co{'title'} = $comment[0];
 233         close $fd;
 234
 235         my $age = time - $co{'committer_epoch'};
 236         $co{'age'} = $age;
 237         if ($age > 60*60*24*365*2) {
 238                 $co{'age_string'} = (int $age/60/60/24/365);
 239                 $co{'age_string'} .= " years ago";
 240         } elsif ($age > 60*60*24*365/12*2) {
 241                 $co{'age_string'} = int $age/60/60/24/365/12;
 242                 $co{'age_string'} .= " months ago";
 243         } elsif ($age > 60*60*24*7*2) {
 244                 $co{'age_string'} = int $age/60/60/24/7;
 245                 $co{'age_string'} .= " weeks ago";
 246         } elsif ($age > 60*60*24*2) {
 247                 $co{'age_string'} = int $age/60/60/24;
 248                 $co{'age_string'} .= " days ago";
 249         } elsif ($age > 60*60*2) {
 250                 $co{'age_string'} = int $age/60/60;
 251                 $co{'age_string'} .= " hours ago";
 252         } elsif ($age > 60*2) {
 253                 $co{'age_string'} = int $age/60;
 254                 $co{'age_string'} .= " minutes ago";
 255         }
 256         return %co;
 257 }
 258
 259 sub git_diff_html {
 260         my $from_name = shift || "/dev/null";
 261         my $to_name = shift || "/dev/null";
 262         my $from = shift;
 263         my $to = shift;
 264
 265         my $from_tmp = "/dev/null";
 266         my $to_tmp = "/dev/null";
 267         my $from_label = "/dev/null";
 268         my $to_label = "/dev/null";
 269         my $pid = $$;
 270
 271         # create tmp from-file
 272         if ($from ne "") {
 273                 $from_tmp = "$gittmp/gitweb_" . $$ . "_from";
 274                 open(my $fd2, "> $from_tmp");
 275                 open my $fd, "-|", "$gitbin/git-cat-file blob $from";
 276                 my @file = <$fd>;
 277                 print $fd2 @file;
 278                 close $fd2;
 279                 close $fd;
 280                 $from_label = "a/$from_name";
 281         }
 282
 283         # create tmp to-file
 284         if ($to ne "") {
 285                 $to_tmp = "$gittmp/gitweb_" . $$ . "_to";
 286                 open my $fd2, "> $to_tmp";
 287                 open my $fd, "-|", "$gitbin/git-cat-file blob $to";
 288                 my @file = <$fd>;
 289                 print $fd2 @file;
 290                 close $fd2;
 291                 close $fd;
 292                 $to_label = "b/$to_name";
 293         }
 294
 295         open my $fd, "-|", "/usr/bin/diff -u -p -L $from_label -L $to_label $from_tmp $to_tmp";
 296         print "<span style=\"color: #000099;\">===== ";
 297         if ($from ne "") {
 298                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$from"}, $from);
 299         } else {
 300                 print $from_name;
 301         }
 302         print " vs ";
 303         if ($to ne "") {
 304                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to"}, $to);
 305         } else {
 306                 print $to_name;
 307         }
 308         print " =====</span>\n";
 309         while (my $line = <$fd>) {
 310                 my $char = substr($line,0,1);
 311                 print '<span style="color: #008800;">' if $char eq '+';
 312                 print '<span style="color: #CC0000;">' if $char eq '-';
 313                 print '<span style="color: #990099;">' if $char eq '@';
 314                 print escapeHTML($line);
 315                 print '</span>' if $char eq '+' or $char eq '-' or $char eq '@';
 316         }
 317         close $fd;
 318
 319         if ($from ne "") {
 320                 unlink("$from_tmp");
 321         }
 322         if ($to ne "") {
 323                 unlink("$to_tmp");
 324         }
 325 }
 326
 327 sub mode_str {
 328         my $perms = oct shift;
 329         my $modestr;
 330         if ($perms & 040000) {
 331                 $modestr .= 'drwxr-xr-x';
 332         } else {
 333                 # git cares only about the executable bit
 334                 if ($perms & 0100) {
 335                         $modestr .= '-rwxr-xr-x';
 336                 } else {
 337                         $modestr .= '-rw-r--r--';
 338                 };
 339         }
 340         return $modestr;
 341 }
 342
 343 sub date_str {
 344         my $epoch = shift;
 345         my $tz = shift || "-0000";
 346
 347         my %date;
 348         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 349         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 350         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 351         $date{'hour'} = $hour;
 352         $date{'minute'} = $min;
 353         $date{'mday'} = $mday;
 354         $date{'day'} = $days[$wday];
 355         $date{'month'} = $months[$mon];
 356         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 357         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 358
 359         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 360         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 361         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 362         $date{'hour_local'} = $hour;
 363         $date{'minute_local'} = $min;
 364         $date{'tz_local'} = $tz;
 365         return %date;
 366 }
 367
 368 if (defined($action) && $action eq "git-logo.png") {
 369         print $cgi->header(-type => 'image/png', -expires => '+1d');
 370         print   "\211\120\116\107\015\012\032\012\000\000\000\015\111\110\104\122".
 371                 "\000\000\000\110\000\000\000\033\004\003\000\000\000\055\331\324".
 372                 "\055\000\000\000\030\120\114\124\105\377\377\377\140\140\135\260".
 373                 "\257\252\000\200\000\316\315\307\300\000\000\350\350\346\367\367".
 374                 "\366\225\014\247\107\000\000\000\163\111\104\101\124\050\317\143".
 375                 "\110\147\040\004\112\134\030\012\010\052\142\123\141\040\002\010".
 376                 "\015\151\105\254\241\241\001\060\014\223\140\066\046\122\221\261".
 377                 "\001\021\326\341\125\144\154\154\314\154\154\014\242\014\160\052".
 378                 "\142\006\052\301\142\035\263\001\002\123\244\010\350\000\003\030".
 379                 "\046\126\021\324\341\040\227\033\340\264\016\065\044\161\051\202".
 380                 "\231\060\270\223\012\021\271\105\210\301\215\240\242\104\041\006".
 381                 "\047\101\202\100\205\301\105\211\040\160\001\000\244\075\041\305".
 382                 "\022\034\232\376\000\000\000\000\111\105\116\104\256\102\140\202";
 383         exit;
 384 }
 385
 386 if (!defined($project)) {
 387         print $cgi->redirect($home_link);
 388         exit;
 389 }
 390
 391 if (!defined($action)) {
 392         $action = "log";
 393 }
 394
 395 if (!defined($time_back)) {
 396         $time_back = 1;
 397 }
 398
 399 if ($action eq "blob") {
 400         git_header_html();
 401         print "<div class=\"page_nav\">\n";
 402         print "<br/><br/></div>\n";
 403         print "<div class=\"title\">$hash</div>\n";
 404         print "<div class=\"page_body\"><pre>\n";
 405         open(my $fd, "-|", "$gitbin/git-cat-file blob $hash");
 406         my $nr;
 407         while (my $line = <$fd>) {
 408                 $nr++;
 409                 printf "<span style =\"color: #999999;\">%4i\t</span>%s", $nr, escapeHTML($line);;
 410         }
 411         close $fd;
 412         print "<br/></pre>\n";
 413         print "</div>";
 414         git_footer_html();
 415 } elsif ($action eq "tree") {
 416         if ($hash eq "") {
 417                 $hash = git_head($project);
 418         }
 419         open my $fd, "-|", "$gitbin/git-ls-tree $hash";
 420         my (@entries) = map { chomp; $_ } <$fd>;
 421         close $fd;
 422
 423         git_header_html();
 424         my %co = git_commit($hash);
 425         if (%co) {
 426                 print "<div class=\"page_nav\"> view\n" .
 427                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | " .
 428                       $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diffs") . " | " .
 429                       $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash"}, "tree") .
 430                       "<br/><br/>\n" .
 431                       "</div>\n";
 432                 print "<div>\n" .
 433                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
 434                       "</div>\n";
 435         } else {
 436                 print "<div class=\"page_nav\">\n";
 437                 print "<br/><br/></div>\n";
 438                 print "<div class=\"title\">$hash</div>\n";
 439         }
 440         print "<div class=\"page_body\">\n";
 441         print "<br/><pre>\n";
 442         foreach my $line (@entries) {
 443                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
 444                 $line =~ m/^([0-9]+)\t(.*)\t(.*)\t(.*)$/;
 445                 my $t_mode = $1;
 446                 my $t_type = $2;
 447                 my $t_hash = $3;
 448                 my $t_name = $4;
 449                 if ($t_type eq "blob") {
 450                         print mode_str($t_mode). " " . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$t_hash"}, $t_name) . "\n";
 451                 } elsif ($t_type eq "tree") {
 452                         print mode_str($t_mode). " " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$t_hash"}, $t_name) . "\n";
 453                 }
 454         }
 455         print "</pre>\n";
 456         print "<br/></div>";
 457         git_footer_html();
 458 } elsif ($action eq "rss") {
 459         open my $fd, "-|", "$gitbin/git-rev-list --max-count=20 " . git_head($project);
 460         my (@revlist) = map { chomp; $_ } <$fd>;
 461         close $fd;
 462
 463         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
 464         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
 465               "<rss version=\"0.91\">\n";
 466         print "<channel>\n";
 467         print "<title>$project</title>\n".
 468               "<link> " . $my_url . "/$project/log</link>\n".
 469               "<description>$project log</description>\n".
 470               "<language>en</language>\n";
 471
 472         foreach my $commit (@revlist) {
 473                 my %co = git_commit($commit);
 474                 my %ad = date_str($co{'author_epoch'});
 475                 print "<item>\n" .
 476                       "\t<title>" . sprintf("%d %s %02d:%02d", $ad{'mday'}, $ad{'month'}, $ad{'hour'}, $ad{'min'}) . " - " . escapeHTML($co{'title'}) . "</title>\n" .
 477                       "\t<link> " . $my_url . "?p=$project;a=commit;h=$commit</link>\n" .
 478                       "\t<description>";
 479                 my $comment = $co{'comment'};
 480                 foreach my $line (@$comment) {
 481                         print escapeHTML($line) . "<br/>\n";
 482                 }
 483                 print "\t</description>\n" .
 484                       "</item>\n";
 485         }
 486         print "</channel></rss>";
 487 } elsif ($action eq "log") {
 488         my $date = 0;
 489         if ($time_back > 0) {
 490                 $date = time - $time_back*24*60*60;
 491         }
 492         my $head = git_head($project);
 493         open my $fd, "-|", "$gitbin/git-rev-list --max-age=$date $head";
 494         my (@revlist) = map { chomp; $_ } <$fd>;
 495         close $fd;
 496
 497         git_header_html();
 498         print "<div class=\"page_nav\">\n";
 499         print "view  ";
 500         print $cgi->a({-href => "$my_uri?p=$project;a=log"}, "last day") . " | " .
 501               $cgi->a({-href => "$my_uri?p=$project;a=log;t=7"}, "week") . " | " .
 502               $cgi->a({-href => "$my_uri?p=$project;a=log;t=31"}, "month") . " | " .
 503               $cgi->a({-href => "$my_uri?p=$project;a=log;t=365"}, "year") . " | " .
 504               $cgi->a({-href => "$my_uri?p=$project;a=log;t=0"}, "all") . "<br/>\n";
 505         print "<br/><br/>\n" .
 506               "</div>\n";
 507
 508         if (!(@revlist)) {
 509                 my %co = git_commit($head);
 510                 print "<div class=\"page_body\"> Last change " . $co{'age_string'} . ".<br/><br/></div>\n";
 511         }
 512
 513         foreach my $commit (@revlist) {
 514                 my %co = git_commit($commit);
 515                 my %ad = date_str($co{'author_epoch'});
 516                 print "<div>\n" .
 517                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit", -class => "title"},
 518                       "<span class=\"log_age\">" . $co{'age_string'} . "</span>" . escapeHTML($co{'title'})) . "\n" .
 519                       "</div>\n";
 520                 print "<div class=\"title_text\">\n" .
 521                       "<div class=\"log_link\">\n" .
 522                       "view " . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "commit") . " | " .
 523                       $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$commit"}, "diff") . "<br/>\n" .
 524                       "</div>\n" .
 525                       "<i>" . escapeHTML($co{'author_name'}) .  " [" . $ad{'rfc2822'} . "]</i><br/>\n" .
 526                       "</div>\n" .
 527                       "<div class=\"log_body\">\n";
 528                 my $comment = $co{'comment'};
 529                 foreach my $line (@$comment) {
 530                         last if ($line =~ m/^(signed-off|acked)-by:/i);
 531                                 print escapeHTML($line) . "<br/>\n";
 532                 }
 533                 print "<br/>\n" .
 534                       "</div>\n";
 535         }
 536         git_footer_html();
 537 } elsif ($action eq "commit") {
 538         my %co = git_commit($hash);
 539         if (!%co) {
 540                 die_error("", "Unknown commit object.");
 541         }
 542         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
 543         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
 544
 545         my @difftree;
 546         if (defined($co{'parent'})) {
 547                 open my $fd, "-|", "$gitbin/git-diff-tree -r " . $co{'parent'} . " $hash";
 548                 @difftree = map { chomp; $_ } <$fd>;
 549                 close $fd;
 550         } else {
 551                 # fake git-diff-tree output for initial revision
 552                 open my $fd, "-|", "$gitbin/git-ls-tree -r $hash";
 553                 @difftree = map { chomp;  "+" . $_ } <$fd>;
 554                 close $fd;
 555         }
 556         git_header_html();
 557         print "<div class=\"page_nav\"> view\n" .
 558               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | \n" .
 559               $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diffs") . " | \n" .
 560               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash"}, "tree") . "\n" .
 561               "<br/><br/></div>\n";
 562         print "<div>\n" .
 563               $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
 564               "</div>\n";
 565         print "<div class=\"title_text\">\n" .
 566               "<table cellspacing=\"0\">";
 567         print "<tr><td class=\"key\">author</td><td>" . escapeHTML($co{'author'}) . "</td><tr><td></td><td>" .
 568               " " . $ad{'rfc2822'};
 569         if ($ad{'hour_local'} < 6) {
 570                 print "<span style=\"color: #cc0000;\">";
 571         }
 572         printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
 573         if ($ad{'hour_local'} < 6 ) {
 574                 print "</span>";
 575         }
 576         print "</i>\n" .
 577               "</td></tr>\n";
 578         print "<tr><td class=\"key\">committer</td><td>" . escapeHTML($co{'committer'}) . "</td><tr><td></td><td>" .
 579               " " . $cd{'rfc2822'} . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</i>\n" .
 580               "</td></tr>\n";
 581         print "<tr><td class=\"key\">commit</td><td style=\"font-family: monospace;\">$hash</td></tr>\n";
 582         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";
 583         my $parents  = $co{'parents'};
 584         foreach my $par (@$parents) {
 585                 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";
 586         }
 587         print "</table></div>\n";
 588         print "<div class=\"page_body\">\n";
 589         my $comment = $co{'comment'};
 590         foreach my $line (@$comment) {
 591                 if ($line =~ m/(signed-off|acked)-by:/i) {
 592                         print "<span style=\"color: #888888\">" . escapeHTML($line) . "</span><br/>\n";
 593                 } else {
 594                         print escapeHTML($line) . "<br/>\n";
 595                 }
 596         }
 597         print "</div>\n";
 598         if ($#difftree > 10) {
 599                 print "<div class=\"list_head\">" . ($#difftree + 1) . " files changed:<br/></div>\n";
 600         }
 601         foreach my $line (@difftree) {
 602                 # '*100644->100644      blob    9f91a116d91926df3ba936a80f020a6ab1084d2b->bb90a0c3a91eb52020d0db0e8b4f94d30e02d596      net/ipv4/route.c'
 603                 # '+100644      blob    4a83ab6cd565d21ab0385bac6643826b83c2fcd4        arch/arm/lib/bitops.h'
 604                 # '*100664->100644      blob    b1a8e3dd5556b61dd771d32307c6ee5d7150fa43->b1a8e3dd5556b61dd771d32307c6ee5d7150fa43      show-files.c'
 605                 # '*100664->100644      blob    d08e895238bac36d8220586fdc28c27e1a7a76d3->d08e895238bac36d8220586fdc28c27e1a7a76d3      update-cache.c'
 606                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 607                 my $op = $1;
 608                 my $mode = $2;
 609                 my $type = $3;
 610                 my $id = $4;
 611                 my $file = $5;
 612                 my $mode_chng = "";
 613                 if ($type eq "blob") {
 614                         if ($op eq "+") {
 615                                 print "<div class=\"list\">\n" .
 616                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"},
 617                                       escapeHTML($file) . " <span style=\"color: #008000;\">[new]</span>") . "\n" .
 618                                       "</div>";
 619                                 print "<div class=\"link\">\n" .
 620                                       "view " .
 621                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"}, "file") . "<br/>\n" .
 622                                       "</div>\n";
 623                         } elsif ($op eq "-") {
 624                                 print "<div class=\"list\">\n" .
 625                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"},
 626                                       escapeHTML($file) .  " <span style=\"color: #c00000;\">[removed]</span>") . "\n" .
 627                                       "</div>";
 628                                 print "<div class=\"link\">\n" .
 629                                       "view " .
 630                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"}, "file") . " | " .
 631                                       $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash;f=$file"}, "history") . "<br/>\n" .
 632                                       "</div>\n";
 633                         } elsif ($op eq "*") {
 634                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
 635                                 my $from_id = $1;
 636                                 my $to_id = $2;
 637                                 $mode =~ m/^([0-7]{6})->([0-7]{6})$/;
 638                                 my $from_mode = $1;
 639                                 my $to_mode = $2;
 640                                 my $mode_chnge = "";
 641                                 if ($from_mode != $to_mode) {
 642                                         $mode_chnge = " <span style=\"color: #888888;\"> [chmod $mode]</span>\n";
 643                                 }
 644                                 print "<div class=\"list\">\n";
 645                                 if ($to_id ne $from_id) {
 646                                         print $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id"},
 647                                               escapeHTML($file) . $mode_chnge) . "\n" .
 648                                               "</div>\n";
 649                                 } else {
 650                                         print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id"},
 651                                               escapeHTML($file) . $mode_chnge) . "\n" .
 652                                               "</div>\n";
 653                                 }
 654                                 print "<div class=\"link\">\n" .
 655                                       "view ";
 656                                 if ($to_id ne $from_id) {
 657                                         print $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id"}, "diff") . " | ";
 658                                 }
 659                                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id"}, "file") . " | " .
 660                                       $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash;f=$file"}, "history") . "<br/>\n" .
 661                                       "</div>\n";
 662                         }
 663                 }
 664         }
 665         git_footer_html();
 666 } elsif ($action eq "blobdiff") {
 667         git_header_html();
 668         print "<div class=\"page_nav\">\n";
 669         print "<br/><br/></div>\n";
 670         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
 671         print "<div class=\"page_body\">\n" .
 672               "<pre>\n";
 673         git_diff_html($hash_parent, $hash, $hash_parent, $hash);
 674         print "</pre>\n" .
 675               "<br/></div>";
 676         git_footer_html();
 677 } elsif ($action eq "commitdiff") {
 678         my %co = git_commit($hash);
 679         if (!%co) {
 680                 die_error("", "Unknown commit object.");
 681         }
 682         open my $fd, "-|", "$gitbin/git-diff-tree -r " . $co{'parent'} . " $hash";
 683         my (@difftree) = map { chomp; $_ } <$fd>;
 684         close $fd;
 685
 686         git_header_html();
 687         print "<div class=\"page_nav\"> view\n" .
 688               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | \n" .
 689               $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diffs") . " | \n" .
 690               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash"}, "tree") . "\n" .
 691               "<br/><br/></div>\n";
 692         print "<div>\n" .
 693               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
 694               "</div>\n";
 695         print "<div class=\"page_body\">\n" .
 696               "<pre>\n";
 697         foreach my $line (@difftree) {
 698                 # '*100644->100644      blob    8e5f9bbdf4de94a1bc4b4da8cb06677ce0a57716->8da3a306d0c0c070d87048d14a033df02f40a154      Makefile'
 699                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 700                 my $op = $1;
 701                 my $mode = $2;
 702                 my $type = $3;
 703                 my $id = $4;
 704                 my $file = $5;
 705                 if ($type eq "blob") {
 706                         if ($op eq "+") {
 707                                 git_diff_html("", $file, "", $id);
 708                         } elsif ($op eq "-") {
 709                                 git_diff_html($file, "", $id, "");
 710                         } elsif ($op eq "*") {
 711                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
 712                                 if ($1 ne $2) {
 713                                         git_diff_html($file, $file, $1, $2);
 714                                 }
 715                         }
 716                 }
 717         }
 718         print "<br/></pre>\n";
 719         print "</div>";
 720         git_footer_html();
 721 } elsif ($action eq "history") {
 722         if (!(defined($hash))) {
 723                 $hash = git_head($project);
 724         }
 725         open my $fd, "-|", "$gitbin/git-rev-list $hash";
 726         my (@revlist) = map { chomp; $_ } <$fd>;
 727         close $fd;
 728
 729         git_header_html();
 730         print "<div class=\"page_nav\">\n";
 731         print "<br/><br/></div>\n";
 732         print "<div>\n" .
 733               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($file_name)) . "\n" .
 734               "</div>\n";
 735         foreach my $rev (@revlist) {
 736                 my %co = git_commit($rev);
 737                 my $parents  = $co{'parents'};
 738                 my $found = 0;
 739                 foreach my $parent (@$parents) {
 740                         open $fd, "-|", "$gitbin/git-diff-tree -r $parent $rev $file_name";
 741                         my (@difftree) = map { chomp; $_ } <$fd>;
 742                         close $fd;
 743
 744                         foreach my $line (@difftree) {
 745                                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 746                                 my $file = $5;
 747                                 if ($file eq $file_name) {
 748                                         $found = 1;
 749                                         last;
 750                                 }
 751                         }
 752                 }
 753                 if ($found) {
 754                         print "<div class=\"list\">\n" .
 755                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$rev"},
 756                               "<span class=\"log_age\">" . $co{'age_string'} . "</span>" . escapeHTML($co{'title'})) . "\n" .
 757                               "</div>\n";
 758                         print "<div class=\"link\">\n" .
 759                               "view " .
 760                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$rev"}, "commit") . " | " .
 761                               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$rev"}, "tree") . "<br/><br/>\n" .
 762                               "</div>\n";
 763                 }
 764         }
 765         git_footer_html();
 766 } else {
 767         $action = "";
 768         die_error("", "Unknown action.");
 769 }