Lady’s Gitweb - Gitweb/blob - gitweb.pl

   1 #!/usr/bin/perl
   2
   3 # gitweb.pl - simple web interface to track changes in git repositories
   4 #
   5 # Version 035
   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');
  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 $hash =~ s/[^0-9a-fA-F]//g;
  38 $hash_parent =~ s/[^0-9a-fA-F]//g;
  39 $time_back =~ s/[^0-9]+//g;
  40
  41 sub git_header_html {
  42         print $cgi->header(-type => 'text/html', -charset => 'utf-8');
  43 print <<EOF;
  44 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
  45 <html>
  46 <head>
  47         <title>git - $project $action</title>
  48         <link rel="alternate" title="$project log" href="$my_uri/$project/rss" type="application/rss+xml"/>
  49         <style type="text/css">
  50                 body { font-family: sans-serif; font-size: 12px; margin:25px; }
  51                 div.body { border-width:1px; border-style:solid; border-color:#D9D8D1; }
  52                 div.head1 { font-size:20px; padding:8px; background-color: #D9D8D1; font-weight:bold; }
  53                 div.head1 a:visited { color:#0000cc; }
  54                 div.head1 a:hover { color:#880000; }
  55                 div.head1 a:active { color:#880000; }
  56                 div.head2 { padding:8px; }
  57                 div.head2 a:visited { color:#0000cc; }
  58                 div.head2 a:hover { color:#880000; }
  59                 div.head2 a:active { color:#880000; }
  60                 div.title { padding:8px; background-color: #D9D8D1; font-weight:bold; }
  61                 div.title a { color:#000000; text-decoration:none; }
  62                 div.title a:hover { color:#880000; text-decoration:underline; }
  63                 div.title a:visited { color:#000000; }
  64                 table { padding:0px; margin:0px; width:100%; }
  65                 tr { vertical-align:top; }
  66                 td { padding:8px; margin:0px; font-family: sans-serif; font-size: 12px; }
  67                 td.head1 { background-color: #D9D8D1; font-weight:bold; }
  68                 td.head1 a { color:#000000; text-decoration:none; }
  69                 td.head1 a:hover { color:#880000; text-decoration:underline; }
  70                 td.head1 a:visited { color:#000000; }
  71                 td.head2 { background-color: #EDECE6; font-family: monospace; font-size:12px; }
  72                 td.head3 { background-color: #EDECE6; font-size:10px; }
  73                 div.signed_off { color: #a9a8a1; }
  74                 a { color:#0000cc; }
  75                 a:hover { color:#880000; }
  76                 a:visited { color:#880000; }
  77                 a:active { color:#880000; }
  78                 pre { padding:8px; }
  79         </style>
  80 </head>
  81 <body>
  82 EOF
  83         print "<div class=\"body\">\n";
  84         print "<div class=\"head1\">";
  85         print "<a href=\"http://kernel.org/pub/software/scm/git/\">" .
  86               "<img src=\"$my_uri?a=git-logo.png\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/></a>";
  87         if ($defaultprojects ne "") {
  88                 print $cgi->a({-href => "$my_uri"}, "projects") . " / ";
  89         }
  90         if ($project ne "") {
  91                 print $cgi->a({-href => "$my_uri?p=$project;a=log"}, $project);
  92         }
  93         if ($action ne "") {
  94                 print " / $action";
  95         }
  96         print "</div>\n";
  97 }
  98
  99 sub git_footer_html {
 100         print "</div>\n";
 101         print "</body>\n</html>";
 102 }
 103
 104 sub git_head {
 105         open my $fd, "$projectroot/$project/.git/HEAD";
 106         my $head = <$fd>;
 107         close $fd;
 108         chomp $head;
 109         return $head;
 110 }
 111
 112 sub git_commit {
 113         my $commit = shift;
 114         my %co;
 115         my @parents;
 116
 117         open my $fd, "-|", "$gitbin/cat-file", "commit", $commit;
 118         while (my $line = <$fd>) {
 119                 chomp($line);
 120                 last if $line eq "";
 121                 if ($line =~ m/^tree (.*)$/) {
 122                         $co{'tree'} = $1;
 123                 } elsif ($line =~ m/^parent (.*)$/) {
 124                         push @parents, $1;
 125                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 126                         $co{'committer'} = $1;
 127                         $co{'committer_time'} = $2;
 128                         $co{'committer_timezone'} = $3;
 129                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 130                         $co{'author'} = $1;
 131                         $co{'author_time'} = $2;
 132                         $co{'author_timezone'} = $3;
 133                 }
 134         }
 135         $co{'parents'} = \@parents;
 136         $co{'parent'} = $parents[0];
 137         my (@comment) = map { chomp; $_ } <$fd>;
 138         $co{'comment'} = \@comment;
 139         $co{'title'} = $comment[0];
 140         close $fd;
 141         return %co;
 142 }
 143
 144 sub git_diff_html {
 145         my $from_name = shift || "/dev/null";
 146         my $to_name = shift || "/dev/null";
 147         my $from = shift;
 148         my $to = shift;
 149
 150         my $from_tmp = "/dev/null";
 151         my $to_tmp = "/dev/null";
 152         my $from_label = "/dev/null";
 153         my $to_label = "/dev/null";
 154         my $pid = $$;
 155
 156         # create temp from-file
 157         if ($from ne "") {
 158                 $from_tmp = "$gittmp/gitweb_" . $$ . "_from";
 159                 open my $fd2, "> $from_tmp";
 160                 open my $fd, "-|", "$gitbin/cat-file", "blob", $from;
 161                 my @file = <$fd>;
 162                 print $fd2 @file;
 163                 close $fd2;
 164                 close $fd;
 165                 $from_label = "a/$from_name";
 166         }
 167
 168         # create tmp to-file
 169         if ($to ne "") {
 170                 $to_tmp = "$gittmp/gitweb_" . $$ . "_to";
 171                 open my $fd2, "> $to_tmp";
 172                 open my $fd, "-|", "$gitbin/cat-file", "blob", $to;
 173                 my @file = <$fd>;
 174                 print $fd2 @file;
 175                 close $fd2;
 176                 close $fd;
 177                 $to_label = "b/$to_name";
 178         }
 179
 180         open my $fd, "-|", "/usr/bin/diff", "-L", $from_label, "-L", $to_label, "-u", "-p", $from_tmp, $to_tmp;
 181         print "<span style =\"color: #000099;\">===== ";
 182         if ($from ne "") {
 183                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$from"}, $from);
 184         } else {
 185                 print $from_name;
 186         }
 187         print " vs ";
 188         if ($to ne "") {
 189                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to"}, $to);
 190         } else {
 191                 print $to_name;
 192         }
 193         print " =====</span>\n";
 194         while (my $line = <$fd>) {
 195                 my $char = substr($line,0,1);
 196                 print '<span style ="color: #008800;">' if $char eq '+';
 197                 print '<span style ="color: #CC0000;">' if $char eq '-';
 198                 print '<span style ="color: #990099;">' if $char eq '@';
 199                 print escapeHTML($line);
 200                 print '</span>' if $char eq '+' or $char eq '-' or $char eq '@';
 201         }
 202         close $fd;
 203
 204         if ($from ne "") {
 205                 unlink("$from_tmp");
 206         }
 207         if ($to ne "") {
 208                 unlink("$to_tmp");
 209         }
 210 }
 211
 212 sub mode_str {
 213         my $perms = oct shift;
 214         my $modestr;
 215         if ($perms & 040000) { $modestr .= 'd' } else { $modestr .= '-' };
 216         for (my $i = 0; $i < 3; $i++) {
 217                 if ($perms & 0400) { $modestr .= 'r' } else { $modestr .= '-' };
 218                 if ($perms & 0200) { $modestr .= 'w' } else { $modestr .= '-' };
 219                 if ($perms & 0100) { $modestr .= 'x' } else { $modestr .= '-' };
 220                 $perms <<= 3;
 221         }
 222         return $modestr;
 223 }
 224
 225 if ($action eq "git-logo.png") {
 226         print $cgi->header(-type => 'image/png', -expires => '+1d');
 227         print   "\211\120\116\107\015\012\032\012\000\000\000\015\111\110\104\122".
 228                 "\000\000\000\110\000\000\000\033\004\003\000\000\000\055\331\324".
 229                 "\055\000\000\000\030\120\114\124\105\377\377\377\140\140\135\260".
 230                 "\257\252\000\200\000\316\315\307\300\000\000\350\350\346\367\367".
 231                 "\366\225\014\247\107\000\000\000\163\111\104\101\124\050\317\143".
 232                 "\110\147\040\004\112\134\030\012\010\052\142\123\141\040\002\010".
 233                 "\015\151\105\254\241\241\001\060\014\223\140\066\046\122\221\261".
 234                 "\001\021\326\341\125\144\154\154\314\154\154\014\242\014\160\052".
 235                 "\142\006\052\301\142\035\263\001\002\123\244\010\350\000\003\030".
 236                 "\046\126\021\324\341\040\227\033\340\264\016\065\044\161\051\202".
 237                 "\231\060\270\223\012\021\271\105\210\301\215\240\242\104\041\006".
 238                 "\047\101\202\100\205\301\105\211\040\160\001\000\244\075\041\305".
 239                 "\022\034\232\376\000\000\000\000\111\105\116\104\256\102\140\202";
 240         exit;
 241 }
 242
 243 # show list of default projects
 244 if ($project eq "") {
 245         opendir(my $fd, "$projectroot/$defaultprojects");
 246         my (@path) = grep(!/^\./, readdir($fd));
 247         closedir($fd);
 248         git_header_html();
 249         print "<div class=\"head2\">\n";
 250         print "<br/><br/>\n";
 251         foreach my $line (@path) {
 252                 if (-e "$projectroot/$defaultprojects/$line/.git/HEAD") {
 253                         print $cgi->a({-href => "$my_uri?p=$defaultprojects/$line;a=log"}, "$defaultprojects/$line") . "<br/>\n";
 254                 }
 255         }
 256         print "</div><br/>";
 257         git_footer_html();
 258         exit;
 259 }
 260
 261 if ($action eq "blob") {
 262         git_header_html();
 263         print "<br/><br/>\n";
 264         print "<pre>\n";
 265         open my $fd, "-|", "$gitbin/cat-file", "blob", $hash;
 266         my $nr;
 267         while (my $line = <$fd>) {
 268                 $nr++;
 269                 printf "<span style =\"color: #999999;\">%3i\t</span>%s", $nr, escapeHTML($line);;
 270         }
 271         close $fd;
 272         print "</pre>\n";
 273         print "<br/>";
 274         git_footer_html();
 275 } elsif ($action eq "tree") {
 276         if ($hash eq "") {
 277                 $hash = git_head();
 278         }
 279         open my $fd, "-|", "$gitbin/ls-tree", $hash;
 280         my (@entries) = map { chomp; $_ } <$fd>;
 281         close $fd;
 282         git_header_html();
 283         print "<br/><br/>\n";
 284         print "<pre>\n";
 285         foreach my $line (@entries) {
 286                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
 287                 $line =~ m/^([0-9]+)\t(.*)\t(.*)\t(.*)$/;
 288                 my $t_mode = $1;
 289                 my $t_type = $2;
 290                 my $t_hash = $3;
 291                 my $t_name = $4;
 292                 if ($t_type eq "blob") {
 293                         print mode_str($t_mode). " " . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$t_hash"}, $t_name) . "\n";
 294                 } elsif ($t_type eq "tree") {
 295                         print mode_str($t_mode). " " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$t_hash"}, $t_name) . "\n";
 296                 }
 297         }
 298         print "</pre>\n";
 299         print "<br/>";
 300         git_footer_html();
 301 } elsif ($action eq "log" || $action eq "rss") {
 302         open my $fd, "-|", "$gitbin/rev-list", git_head();
 303         my (@revtree) = map { chomp; $_ } <$fd>;
 304         close $fd;
 305
 306         if ($action eq "log") {
 307                 git_header_html();
 308                 print "<div class=\"head2\">\n";
 309                 print "view  ";
 310                 print $cgi->a({-href => "$my_uri?p=$project;a=log"}, "last day") . " | ";
 311                 print $cgi->a({-href => "$my_uri?p=$project;a=log;t=7"}, "week") . " | ";
 312                 print $cgi->a({-href => "$my_uri?p=$project;a=log;t=31"}, "month") . " | ";
 313                 print $cgi->a({-href => "$my_uri?p=$project;a=log;t=365"}, "year") . " | ";
 314                 print $cgi->a({-href => "$my_uri?p=$project;a=log;t=0"}, "all") . "<br/>\n";
 315                 print "<br/><br/>\n";
 316                 print "</div>\n";
 317                 print "<table cellspacing=\"0\" class=\"log\">\n";
 318         } elsif ($action eq "rss") {
 319                 print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
 320                 print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
 321                       "<rss version=\"0.91\">\n";
 322                 print "<channel>\n";
 323                 print "<title>$project</title>\n".
 324                       "<link> " . $my_url . "/$project/log</link>\n".
 325                       "<description>$project log</description>\n".
 326                       "<language>en</language>\n";
 327         }
 328
 329         for (my $i = 0; $i <= $#revtree; $i++) {
 330                 my $commit = $revtree[$i];
 331                 my %co = git_commit($commit);
 332                 my $age = time - $co{'committer_time'};
 333                 my $age_string;
 334                 if ($age > 60*60*24*365*2) {
 335                         $age_string = int $age/60/60/24/365;
 336                         $age_string .= " years ago";
 337                 } elsif ($age > 60*60*24*365/12*2) {
 338                         $age_string = int $age/60/60/24/365/12;
 339                         $age_string .= " months ago";
 340                 } elsif ($age > 60*60*24*7*2) {
 341                         $age_string = int $age/60/60/24/7;
 342                         $age_string .= " weeks ago";
 343                 } elsif ($age > 60*60*24*2) {
 344                         $age_string = int $age/60/60/24;
 345                         $age_string .= " days ago";
 346                 } elsif ($age > 60*60*2) {
 347                         $age_string = int $age/60/60;
 348                         $age_string .= " hours ago";
 349                 } elsif ($age > 60*2) {
 350                         $age_string = int $age/60;
 351                         $age_string .= " minutes ago";
 352                 }
 353                 if ($action eq "log") {
 354                         if ($time_back > 0 && $age > $time_back*60*60*24) {
 355                                 if ($i == 0) {
 356                                         print "<tr>\n";
 357                                         print "<td class=\"head1\"> Last change $age_string. </td>\n";
 358                                         print "</tr>\n";
 359                                 }
 360                                 last;
 361                         }
 362                         print "<tr>\n";
 363                         print "<td class=\"head1\">" . $age_string . "</td>\n";
 364                         print "<td class=\"head1\">" . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, $co{'title'}) . "</td>";
 365                         print "</tr>\n";
 366                         print "<tr>\n";
 367                         print "<td class=\"head3\">";
 368                         print $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "view commit") . "<br/>\n";
 369                         print $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$commit"}, "view diff") . "<br/>\n";
 370                         print "</td>\n";
 371                         print "<td class=\"head2\">\n";
 372                         print "author &nbsp; &nbsp;" . escapeHTML($co{'author'}) . " [" . gmtime($co{'author_time'}) . " " . $co{'author_timezone'} . "]<br/>\n";
 373                         print "committer " . escapeHTML($co{'committer'}) . " [" . gmtime($co{'committer_time'}) . " " . $co{'committer_timezone'} . "]<br/>\n";
 374                         print "</td>";
 375                         print "</tr>\n";
 376                         print "<tr>\n";
 377                         print "<td></td>\n";
 378                         print "<td>\n";
 379                         my $comment = $co{'comment'};
 380                         foreach my $line (@$comment) {
 381                                 if ($line =~ m/^(signed-off|acked)-by:/i) {
 382                                         print '<div class="signed_off">' . escapeHTML($line) . "<br/></div>\n";
 383                                 } else {
 384                                         print escapeHTML($line) . "<br/>\n";
 385                                 }
 386                         }
 387                         print "<br/><br/>\n";
 388                         print "</td>";
 389                         print "</tr>\n";
 390                 } elsif ($action eq "rss") {
 391                         last if ($i >= 20);
 392                         my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday) = gmtime($co{'author_time'});
 393                         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 394                         print "<item>\n\t<title>";
 395                         printf("%s %02d, %02d:%02d - ", $months[$mon], $mday, $hour, $min);
 396                         print escapeHTML($co{'title'}) . "</title>\n";
 397                         print "\t<link> " . $my_url . "/$project/commit/$commit</link>\n";
 398                         print "\t<description>";
 399                         my $comment = $co{'comment'};
 400                         foreach my $line (@$comment) {
 401                                 print escapeHTML($line) . "\n";
 402                         }
 403                         print "\t</description>\n";
 404                         print "</item>\n";
 405                 }
 406         }
 407         if ($action eq "log") {
 408                 print "</table>\n";
 409                 git_footer_html();
 410         } elsif ($action eq "rss") {
 411                 print "</channel></rss>";
 412         }
 413 } elsif ($action eq "commit") {
 414         my %co = git_commit($hash);
 415         open my $fd, "-|", "$gitbin/diff-tree", "-r", $co{'parent'}, $hash;
 416         my (@difftree) = map { chomp; $_ } <$fd>;
 417         close $fd;
 418
 419         git_header_html();
 420         print "<div class=\"head2\"> view\n";
 421         print $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | ";
 422         print $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diff");
 423         print "</div><br/><br/>\n";
 424         print "<div class=\"title\">" . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, $co{'title'}) . "<br/></div>\n";
 425         print "<table cellspacing=\"0\" class=\"log\">\n";
 426         print "<tr>\n";
 427         print "<td class=\"head2\">";
 428         print "author &nbsp; &nbsp;" . escapeHTML($co{'author'}) . " [" . gmtime($co{'author_time'}) . " " . $co{'author_timezone'} . "]<br/>\n";
 429         print "committer " . escapeHTML($co{'committer'}) . " [" . gmtime($co{'committer_time'}) . " " . $co{'committer_timezone'} . "]<br/>\n";
 430         print "commit &nbsp; &nbsp;$hash<br/>\n";
 431         print "tree &nbsp; &nbsp; &nbsp;" . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$co{'tree'}"}, $co{'tree'}) . "<br/>\n";
 432         my $parents  = $co{'parents'};
 433         foreach my $par (@$parents) {
 434                 print "parent &nbsp; &nbsp;" . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$par"}, $par) . "<br/>\n";
 435         }
 436         print "</td>";
 437         print "</tr>\n";
 438         print "<tr>\n";
 439         print "<td>\n";
 440         my $comment = $co{'comment'};
 441         foreach my $line (@$comment) {
 442                 if ($line =~ m/(signed-off|acked)-by:/i) {
 443                         print '<div class="signed_off">' . escapeHTML($line) . "<br/></div>\n";
 444                 } else {
 445                         print escapeHTML($line) . "<br/>\n";
 446                 }
 447         }
 448         print "<br/><br/>\n";
 449         print "</td>";
 450         print "</tr>\n";
 451         print "</table>";
 452
 453         print "<pre>\n";
 454         foreach my $line (@difftree) {
 455                 # '*100644->100644      blob    9f91a116d91926df3ba936a80f020a6ab1084d2b->bb90a0c3a91eb52020d0db0e8b4f94d30e02d596      net/ipv4/route.c'
 456                 # '+100644      blob    4a83ab6cd565d21ab0385bac6643826b83c2fcd4        arch/arm/lib/bitops.h'
 457                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 458                 my $op = $1;
 459                 my $mode = $2;
 460                 my $type = $3;
 461                 my $id = $4;
 462                 my $file = $5;
 463                 $mode =~ m/^([0-7]{6})/;
 464                 my $modestr = mode_str($1);
 465                 if ($type eq "blob") {
 466                         if ($op eq "+") {
 467                                 print "added\t$modestr " . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"}, $file) . "\n";
 468                         } elsif ($op eq "-") {
 469                                 print "removed\t$modestr " . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"}, $file) . "\n";
 470                         } elsif ($op eq "*") {
 471                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
 472                                 my $old = $1;
 473                                 my $new = $2;
 474                                 print "changed\t$modestr " . $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$old;hp=$new"}, $file) . "\n";
 475                         }
 476                 }
 477         }
 478         print "</pre>\n";
 479         print "<br/>";
 480         git_footer_html();
 481 } elsif ($action eq "blobdiff") {
 482         git_header_html();
 483         print "<br/><br/>\n";
 484         print "<pre>\n";
 485         git_diff_html($hash, $hash_parent, $hash, $hash_parent);
 486         print "</pre>\n";
 487         print "<br/>";
 488         git_footer_html();
 489 } elsif ($action eq "commitdiff") {
 490         my %co = git_commit($hash);
 491         open my $fd, "-|", "$gitbin/diff-tree", "-r", $co{'parent'}, $hash;
 492         my (@difftree) = map { chomp; $_ } <$fd>;
 493         close $fd;
 494
 495         git_header_html();
 496         print "<div class=\"head2\"> view\n";
 497         print $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | ";
 498         print $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diff");
 499         print "</div><br/><br/>\n";
 500         print "<div class=\"title\">" . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, $co{'title'}) . "<br/></div>\n";
 501         print "<pre>\n";
 502         foreach my $line (@difftree) {
 503                 # '*100644->100644      blob    8e5f9bbdf4de94a1bc4b4da8cb06677ce0a57716->8da3a306d0c0c070d87048d14a033df02f40a154      Makefile'
 504                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 505                 my $op = $1;
 506                 my $mode = $2;
 507                 my $type = $3;
 508                 my $id = $4;
 509                 my $file = $5;
 510                 if ($type eq "blob") {
 511                         if ($op eq "+") {
 512                                 git_diff_html("", $file, "", $id);
 513                         } elsif ($op eq "-") {
 514                                 git_diff_html($file, "", $id, "");
 515                         } elsif ($op eq "*") {
 516                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
 517                                 git_diff_html($file, $file, $1, $2);
 518                         }
 519                 }
 520         }
 521         print "</pre>\n";
 522         print "<br/>";
 523         git_footer_html();
 524 } else {
 525         git_header_html();
 526         print "<div class=\"head2\">\n";
 527         print "unknown action";
 528         print "</div><br/><br/>\n";
 529         git_footer_html();
 530 }