gitweb.pl

   1 #!/usr/bin/perl
   2
   3 # gitweb.pl - simple web interface to track changes in git repositories
   4 #
   5 # Version 041
   6 #
   7 # (C) 2005, Kay Sievers <kay.sievers@vrfy.org>
   8 # (C) 2005, Christian Gierke <ch@gierke.de>
   9 #
  10 # This file is licensed under the GPL v2, or a later version
  11
  12 use strict;
  13 use warnings;
  14 use CGI qw(:standard :escapeHTML);
  15 use CGI::Carp qw(fatalsToBrowser);
  16
  17 my $cgi = new CGI;
  18
  19 my $projectroot =       "/";
  20 my $defaultprojects =   "home/kay/public_html";
  21 my $gitbin =            "/home/kay/bin/git";
  22 my $gittmp =            "/tmp";
  23 my $my_url =            $cgi->url();
  24 my $my_uri =            $cgi->url(-absolute => 1);
  25
  26 my $project = $cgi->param('p');
  27 my $action = $cgi->param('a');
  28 my $hash = $cgi->param('h');
  29 my $hash_parent = $cgi->param('hp');
  30 my $time_back = $cgi->param('t') || 1;
  31 $ENV{'SHA1_FILE_DIRECTORY'} = "$projectroot/$project/.git/objects";
  32
  33 # sanitize input
  34 $action =~ s/[^0-9a-zA-Z\.\-]//g;
  35 $project =~ s/\/\.//g;
  36 $project =~ s/^\/+//g;
  37 $project =~ s/\/+$//g;
  38 $project =~ s/|//g;
  39 $hash =~ s/[^0-9a-fA-F]//g;
  40 $hash_parent =~ s/[^0-9a-fA-F]//g;
  41 $time_back =~ s/[^0-9]+//g;
  42
  43 sub git_header_html {
  44         print $cgi->header(-type => 'text/html', -charset => 'utf-8');
  45 print <<EOF;
  46 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
  47 <html>
  48 <head>
  49         <title>git - $project $action</title>
  50         <link rel="alternate" title="$project log" href="$my_uri?p=$project;a=rss" type="application/rss+xml"/>
  51         <style type="text/css">
  52                 body { font-family: sans-serif; font-size: 12px; margin:25px; }
  53                 div.body { border-width:1px; border-style:solid; border-color:#D9D8D1; }
  54                 div.head1 { font-size:18px; padding:8px; background-color: #D9D8D1; font-weight:bold; }
  55                 div.head1 a:visited { color:#0000cc; }
  56                 div.head1 a:hover { color:#880000; }
  57                 div.head1 a:active { color:#880000; }
  58                 div.head2 { padding:8px; }
  59                 div.head2 a:visited { color:#0000cc; }
  60                 div.head2 a:hover { color:#880000; }
  61                 div.head2 a:active { color:#880000; }
  62                 div.title { padding:8px; background-color: #D9D8D1; font-weight:bold; }
  63                 div.title a { color:#000000; text-decoration:none; }
  64                 div.title a:hover { color:#880000; text-decoration:underline; }
  65                 div.title a:visited { color:#000000; }
  66                 table { padding:0px; margin:0px; width:100%; }
  67                 tr { vertical-align:top; }
  68                 td { padding:8px; margin:0px; font-family: sans-serif; font-size: 12px; }
  69                 td.head1 { background-color: #D9D8D1; font-weight:bold; }
  70                 td.head1 a { color:#000000; text-decoration:none; }
  71                 td.head1 a:hover { color:#880000; text-decoration:underline; }
  72                 td.head1 a:visited { color:#000000; }
  73                 td.head2 { background-color: #EDECE6; font-family: monospace; font-size:12px; }
  74                 td.head3 { background-color: #EDECE6; font-size:10px; }
  75                 div.signed_off { color: #a9a8a1; }
  76                 a { color:#0000cc; }
  77                 a:hover { color:#880000; }
  78                 a:visited { color:#880000; }
  79                 a:active { color:#880000; }
  80                 pre { padding:8px; }
  81         </style>
  82 </head>
  83 <body>
  84 EOF
  85         print "<div class=\"body\">\n";
  86         print "<div class=\"head1\">";
  87         print "<a href=\"http://kernel.org/pub/software/scm/git/\">" .
  88               "<img src=\"$my_uri?a=git-logo.png\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/></a>";
  89         if ($defaultprojects ne "") {
  90                 print $cgi->a({-href => "$my_uri"}, "projects") . " / ";
  91         }
  92         if ($project ne "") {
  93                 print $cgi->a({-href => "$my_uri?p=$project;a=log"}, $project);
  94         }
  95         if ($action ne "") {
  96                 print " / $action";
  97         }
  98         print "</div>\n";
  99 }
 100
 101 sub git_footer_html {
 102         print "</div>\n";
 103         print "</body>\n</html>";
 104 }
 105
 106 sub git_head {
 107         my $path = shift;
 108         open my $fd, "$projectroot/$path/.git/HEAD";
 109         my $head = <$fd>;
 110         close $fd;
 111         chomp $head;
 112         return $head;
 113 }
 114
 115 sub git_commit {
 116         my $commit = shift;
 117         my %co;
 118         my @parents;
 119
 120         open my $fd, "-|", "$gitbin/cat-file", "commit", $commit;
 121         while (my $line = <$fd>) {
 122                 chomp($line);
 123                 last if $line eq "";
 124                 if ($line =~ m/^tree (.*)$/) {
 125                         $co{'tree'} = $1;
 126                 } elsif ($line =~ m/^parent (.*)$/) {
 127                         push @parents, $1;
 128                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 129                         $co{'committer'} = $1;
 130                         $co{'committer_time'} = $2;
 131                         $co{'committer_timezone'} = $3;
 132                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 133                         $co{'author'} = $1;
 134                         $co{'author_time'} = $2;
 135                         $co{'author_timezone'} = $3;
 136                 }
 137         }
 138         $co{'parents'} = \@parents;
 139         $co{'parent'} = $parents[0];
 140         my (@comment) = map { chomp; $_ } <$fd>;
 141         $co{'comment'} = \@comment;
 142         $co{'title'} = $comment[0];
 143         close $fd;
 144         return %co;
 145 }
 146
 147 sub git_diff_html {
 148         my $from_name = shift || "/dev/null";
 149         my $to_name = shift || "/dev/null";
 150         my $from = shift;
 151         my $to = shift;
 152
 153         my $from_tmp = "/dev/null";
 154         my $to_tmp = "/dev/null";
 155         my $from_label = "/dev/null";
 156         my $to_label = "/dev/null";
 157         my $pid = $$;
 158
 159         # create temp from-file
 160         if ($from ne "") {
 161                 $from_tmp = "$gittmp/gitweb_" . $$ . "_from";
 162                 open my $fd2, "> $from_tmp";
 163                 open my $fd, "-|", "$gitbin/cat-file", "blob", $from;
 164                 my @file = <$fd>;
 165                 print $fd2 @file;
 166                 close $fd2;
 167                 close $fd;
 168                 $from_label = "a/$from_name";
 169         }
 170
 171         # create tmp to-file
 172         if ($to ne "") {
 173                 $to_tmp = "$gittmp/gitweb_" . $$ . "_to";
 174                 open my $fd2, "> $to_tmp";
 175                 open my $fd, "-|", "$gitbin/cat-file", "blob", $to;
 176                 my @file = <$fd>;
 177                 print $fd2 @file;
 178                 close $fd2;
 179                 close $fd;
 180                 $to_label = "b/$to_name";
 181         }
 182
 183         open my $fd, "-|", "/usr/bin/diff", "-L", $from_label, "-L", $to_label, "-u", "-p", $from_tmp, $to_tmp;
 184         print "<span style=\"color: #000099;\">===== ";
 185         if ($from ne "") {
 186                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$from"}, $from);
 187         } else {
 188                 print $from_name;
 189         }
 190         print " vs ";
 191         if ($to ne "") {
 192                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to"}, $to);
 193         } else {
 194                 print $to_name;
 195         }
 196         print " =====</span>\n";
 197         while (my $line = <$fd>) {
 198                 my $char = substr($line,0,1);
 199                 print '<span style="color: #008800;">' if $char eq '+';
 200                 print '<span style="color: #CC0000;">' if $char eq '-';
 201                 print '<span style="color: #990099;">' if $char eq '@';
 202                 print escapeHTML($line);
 203                 print '</span>' if $char eq '+' or $char eq '-' or $char eq '@';
 204         }
 205         close $fd;
 206
 207         if ($from ne "") {
 208                 unlink("$from_tmp");
 209         }
 210         if ($to ne "") {
 211                 unlink("$to_tmp");
 212         }
 213 }
 214
 215 # git cares only about the executable bit
 216 sub mode_str {
 217         my $perms = oct shift;
 218         my $modestr;
 219         if ($perms & 040000) {
 220                 $modestr .= 'drwxrwxr-x';
 221         } else {
 222                 if ($perms & 0100) {
 223                         $modestr .= '-rwxrwxr-x';
 224                 } else {
 225                         $modestr .= '-rw-rw-r--';
 226                 };
 227         }
 228         return $modestr;
 229 }
 230
 231 if ($action eq "git-logo.png") {
 232         print $cgi->header(-type => 'image/png', -expires => '+1d');
 233         print   "\211\120\116\107\015\012\032\012\000\000\000\015\111\110\104\122".
 234                 "\000\000\000\110\000\000\000\033\004\003\000\000\000\055\331\324".
 235                 "\055\000\000\000\030\120\114\124\105\377\377\377\140\140\135\260".
 236                 "\257\252\000\200\000\316\315\307\300\000\000\350\350\346\367\367".
 237                 "\366\225\014\247\107\000\000\000\163\111\104\101\124\050\317\143".
 238                 "\110\147\040\004\112\134\030\012\010\052\142\123\141\040\002\010".
 239                 "\015\151\105\254\241\241\001\060\014\223\140\066\046\122\221\261".
 240                 "\001\021\326\341\125\144\154\154\314\154\154\014\242\014\160\052".
 241                 "\142\006\052\301\142\035\263\001\002\123\244\010\350\000\003\030".
 242                 "\046\126\021\324\341\040\227\033\340\264\016\065\044\161\051\202".
 243                 "\231\060\270\223\012\021\271\105\210\301\215\240\242\104\041\006".
 244                 "\047\101\202\100\205\301\105\211\040\160\001\000\244\075\041\305".
 245                 "\022\034\232\376\000\000\000\000\111\105\116\104\256\102\140\202";
 246         exit;
 247 }
 248
 249 # show list of default projects
 250 if ($project eq "") {
 251         opendir(my $fd, "$projectroot/$defaultprojects");
 252         my (@path) = sort grep(!/^\./, readdir($fd));
 253         closedir($fd);
 254         git_header_html();
 255         print "<div class=\"head2\">\n";
 256         print "<br/><br/>\n";
 257         foreach my $line (@path) {
 258                 if (-e "$projectroot/$defaultprojects/$line/.git/HEAD") {
 259                         print $cgi->a({-href => "$my_uri?p=$defaultprojects/$line;a=log"}, "$defaultprojects/$line") . "<br/>\n";
 260                 }
 261         }
 262         print "</div><br/>";
 263         git_footer_html();
 264         exit;
 265 }
 266
 267 if ($action eq "blob") {
 268         git_header_html();
 269         print "<br/><br/>\n";
 270         print "<pre>\n";
 271         open my $fd, "-|", "$gitbin/cat-file", "blob", $hash;
 272         my $nr;
 273         while (my $line = <$fd>) {
 274                 $nr++;
 275                 printf "<span style =\"color: #999999;\">%3i\t</span>%s", $nr, escapeHTML($line);;
 276         }
 277         close $fd;
 278         print "</pre>\n";
 279         print "<br/>";
 280         git_footer_html();
 281 } elsif ($action eq "tree") {
 282         if ($hash eq "") {
 283                 $hash = git_head($project);
 284         }
 285         open my $fd, "-|", "$gitbin/ls-tree", $hash;
 286         my (@entries) = map { chomp; $_ } <$fd>;
 287         close $fd;
 288         git_header_html();
 289         print "<br/><br/>\n";
 290         print "<pre>\n";
 291         foreach my $line (@entries) {
 292                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
 293                 $line =~ m/^([0-9]+)\t(.*)\t(.*)\t(.*)$/;
 294                 my $t_mode = $1;
 295                 my $t_type = $2;
 296                 my $t_hash = $3;
 297                 my $t_name = $4;
 298                 if ($t_type eq "blob") {
 299                         print mode_str($t_mode). " " . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$t_hash"}, $t_name) . "\n";
 300                 } elsif ($t_type eq "tree") {
 301                         print mode_str($t_mode). " " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$t_hash"}, $t_name) . "\n";
 302                 }
 303         }
 304         print "</pre>\n";
 305         print "<br/>";
 306         git_footer_html();
 307 } elsif ($action eq "log" || $action eq "rss") {
 308         open my $fd, "-|", "$gitbin/rev-list", git_head($project);
 309         my (@revtree) = map { chomp; $_ } <$fd>;
 310         close $fd;
 311
 312         if ($action eq "log") {
 313                 git_header_html();
 314                 print "<div class=\"head2\">\n";
 315                 print "view  ";
 316                 print $cgi->a({-href => "$my_uri?p=$project;a=log"}, "last day") . " | ";
 317                 print $cgi->a({-href => "$my_uri?p=$project;a=log;t=7"}, "week") . " | ";
 318                 print $cgi->a({-href => "$my_uri?p=$project;a=log;t=31"}, "month") . " | ";
 319                 print $cgi->a({-href => "$my_uri?p=$project;a=log;t=365"}, "year") . " | ";
 320                 print $cgi->a({-href => "$my_uri?p=$project;a=log;t=0"}, "all") . "<br/>\n";
 321                 print "<br/><br/>\n";
 322                 print "</div>\n";
 323                 print "<table cellspacing=\"0\" class=\"log\">\n";
 324         } elsif ($action eq "rss") {
 325                 print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
 326                 print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
 327                       "<rss version=\"0.91\">\n";
 328                 print "<channel>\n";
 329                 print "<title>$project</title>\n".
 330                       "<link> " . $my_url . "/$project/log</link>\n".
 331                       "<description>$project log</description>\n".
 332                       "<language>en</language>\n";
 333         }
 334
 335         for (my $i = 0; $i <= $#revtree; $i++) {
 336                 my $commit = $revtree[$i];
 337                 my %co = git_commit($commit);
 338                 my $age = time - $co{'committer_time'};
 339                 my $age_string;
 340                 if ($age > 60*60*24*365*2) {
 341                         $age_string = int $age/60/60/24/365;
 342                         $age_string .= " years ago";
 343                 } elsif ($age > 60*60*24*365/12*2) {
 344                         $age_string = int $age/60/60/24/365/12;
 345                         $age_string .= " months ago";
 346                 } elsif ($age > 60*60*24*7*2) {
 347                         $age_string = int $age/60/60/24/7;
 348                         $age_string .= " weeks ago";
 349                 } elsif ($age > 60*60*24*2) {
 350                         $age_string = int $age/60/60/24;
 351                         $age_string .= " days ago";
 352                 } elsif ($age > 60*60*2) {
 353                         $age_string = int $age/60/60;
 354                         $age_string .= " hours ago";
 355                 } elsif ($age > 60*2) {
 356                         $age_string = int $age/60;
 357                         $age_string .= " minutes ago";
 358                 }
 359                 if ($action eq "log") {
 360                         if ($time_back > 0 && $age > $time_back*60*60*24) {
 361                                 if ($i == 0) {
 362                                         print "<tr>\n";
 363                                         print "<td class=\"head1\"> Last change $age_string. </td>\n";
 364                                         print "</tr>\n";
 365                                 }
 366                                 last;
 367                         }
 368                         print "<tr>\n";
 369                         print "<td class=\"head1\">" . $age_string . "</td>\n";
 370                         print "<td class=\"head1\">" . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, $co{'title'}) . "</td>";
 371                         print "</tr>\n";
 372                         print "<tr>\n";
 373                         print "<td class=\"head3\">";
 374                         print $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "view commit") . "<br/>\n";
 375                         print $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$commit"}, "view diff") . "<br/>\n";
 376                         print "</td>\n";
 377                         print "<td class=\"head2\">\n";
 378                         print "author &nbsp; &nbsp;" . escapeHTML($co{'author'}) . " [" . gmtime($co{'author_time'}) . " " . $co{'author_timezone'} . "]<br/>\n";
 379                         print "committer " . escapeHTML($co{'committer'}) . " [" . gmtime($co{'committer_time'}) . " " . $co{'committer_timezone'} . "]<br/>\n";
 380                         print "</td>";
 381                         print "</tr>\n";
 382                         print "<tr>\n";
 383                         print "<td></td>\n";
 384                         print "<td>\n";
 385                         my $comment = $co{'comment'};
 386                         foreach my $line (@$comment) {
 387                                 if ($line =~ m/^(signed-off|acked)-by:/i) {
 388                                         print '<div class="signed_off">' . escapeHTML($line) . "<br/></div>\n";
 389                                 } else {
 390                                         print escapeHTML($line) . "<br/>\n";
 391                                 }
 392                         }
 393                         print "<br/><br/>\n";
 394                         print "</td>";
 395                         print "</tr>\n";
 396                 } elsif ($action eq "rss") {
 397                         last if ($i >= 20);
 398                         my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday) = gmtime($co{'author_time'});
 399                         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 400                         print "<item>\n\t<title>";
 401                         printf("%s %02d, %02d:%02d - ", $months[$mon], $mday, $hour, $min);
 402                         print escapeHTML($co{'title'}) . "</title>\n";
 403                         print "\t<link> " . $my_url . "/$project/commit/$commit</link>\n";
 404                         print "\t<description>";
 405                         my $comment = $co{'comment'};
 406                         foreach my $line (@$comment) {
 407                                 print escapeHTML($line) . "\n";
 408                         }
 409                         print "\t</description>\n";
 410                         print "</item>\n";
 411                 }
 412         }
 413         if ($action eq "log") {
 414                 print "</table>\n";
 415                 git_footer_html();
 416         } elsif ($action eq "rss") {
 417                 print "</channel></rss>";
 418         }
 419 } elsif ($action eq "commit") {
 420         my %co = git_commit($hash);
 421         open my $fd, "-|", "$gitbin/diff-tree", "-r", $co{'parent'}, $hash;
 422         my (@difftree) = map { chomp; $_ } <$fd>;
 423         close $fd;
 424
 425         git_header_html();
 426         print "<div class=\"head2\"> view\n";
 427         print $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | ";
 428         print $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diff");
 429         print "</div><br/><br/>\n";
 430         print "<div class=\"title\">" . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, $co{'title'}) . "<br/></div>\n";
 431         print "<table cellspacing=\"0\" class=\"log\">\n";
 432         print "<tr>\n";
 433         print "<td class=\"head2\">";
 434         print "author &nbsp; &nbsp;" . escapeHTML($co{'author'}) . " [" . gmtime($co{'author_time'}) . " " . $co{'author_timezone'} . "]<br/>\n";
 435         print "committer " . escapeHTML($co{'committer'}) . " [" . gmtime($co{'committer_time'}) . " " . $co{'committer_timezone'} . "]<br/>\n";
 436         print "commit &nbsp; &nbsp;$hash<br/>\n";
 437         print "tree &nbsp; &nbsp; &nbsp;" . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$co{'tree'}"}, $co{'tree'}) . "<br/>\n";
 438         my $parents  = $co{'parents'};
 439         foreach my $par (@$parents) {
 440                 print "parent &nbsp; &nbsp;" . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$par"}, $par) . "<br/>\n";
 441         }
 442         print "</td>";
 443         print "</tr>\n";
 444         print "<tr>\n";
 445         print "<td>\n";
 446         my $comment = $co{'comment'};
 447         foreach my $line (@$comment) {
 448                 if ($line =~ m/(signed-off|acked)-by:/i) {
 449                         print '<div class="signed_off">' . escapeHTML($line) . "<br/></div>\n";
 450                 } else {
 451                         print escapeHTML($line) . "<br/>\n";
 452                 }
 453         }
 454         print "<br/><br/>\n";
 455         print "</td>";
 456         print "</tr>\n";
 457         print "</table>";
 458
 459         print "<pre>\n";
 460         foreach my $line (@difftree) {
 461                 # '*100644->100644      blob    9f91a116d91926df3ba936a80f020a6ab1084d2b->bb90a0c3a91eb52020d0db0e8b4f94d30e02d596      net/ipv4/route.c'
 462                 # '+100644      blob    4a83ab6cd565d21ab0385bac6643826b83c2fcd4        arch/arm/lib/bitops.h'
 463                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 464                 my $op = $1;
 465                 my $mode = $2;
 466                 my $type = $3;
 467                 my $id = $4;
 468                 my $file = $5;
 469                 $mode =~ m/^([0-7]{6})/;
 470                 my $modestr = mode_str($1);
 471                 if ($type eq "blob") {
 472                         if ($op eq "+") {
 473                                 print "$modestr " . $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$id"}, $file) . " (new)\n";
 474                         } elsif ($op eq "-") {
 475                                 print "$modestr " . $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;hp=$id"}, $file) . " (removed)\n";
 476                         } elsif ($op eq "*") {
 477                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
 478                                 my $from = $1;
 479                                 my $to = $2;
 480                                 print "$modestr " . $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to;hp=$from"}, $file) . "\n";
 481                         }
 482                 }
 483         }
 484         print "</pre>\n";
 485         print "<br/>";
 486         git_footer_html();
 487 } elsif ($action eq "blobdiff") {
 488         git_header_html();
 489         print "<br/><br/>\n";
 490         print "<pre>\n";
 491         git_diff_html($hash_parent, $hash, $hash_parent, $hash);
 492         print "</pre>\n";
 493         print "<br/>";
 494         git_footer_html();
 495 } elsif ($action eq "commitdiff") {
 496         my %co = git_commit($hash);
 497         open my $fd, "-|", "$gitbin/diff-tree", "-r", $co{'parent'}, $hash;
 498         my (@difftree) = map { chomp; $_ } <$fd>;
 499         close $fd;
 500
 501         git_header_html();
 502         print "<div class=\"head2\"> view\n";
 503         print $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | ";
 504         print $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diff");
 505         print "</div><br/><br/>\n";
 506         print "<div class=\"title\">" . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, $co{'title'}) . "<br/></div>\n";
 507         print "<pre>\n";
 508         foreach my $line (@difftree) {
 509                 # '*100644->100644      blob    8e5f9bbdf4de94a1bc4b4da8cb06677ce0a57716->8da3a306d0c0c070d87048d14a033df02f40a154      Makefile'
 510                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 511                 my $op = $1;
 512                 my $mode = $2;
 513                 my $type = $3;
 514                 my $id = $4;
 515                 my $file = $5;
 516                 if ($type eq "blob") {
 517                         if ($op eq "+") {
 518                                 git_diff_html("", $file, "", $id);
 519                         } elsif ($op eq "-") {
 520                                 git_diff_html($file, "", $id, "");
 521                         } elsif ($op eq "*") {
 522                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
 523                                 git_diff_html($file, $file, $1, $2);
 524                         }
 525                 }
 526         }
 527         print "</pre>\n";
 528         print "<br/>";
 529         git_footer_html();
 530 } else {
 531         git_header_html();
 532         print "<div class=\"head2\">\n";
 533         print "unknown action";
 534         print "</div><br/><br/>\n";
 535         git_footer_html();
 536 }