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 021
   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 $projectroot =       "/home/kay/public_html";
  18 my $defaultprojects =   ".";
  19 my $gitbin =            "/home/kay/bin/git";
  20 my $gittmp =            "/tmp";
  21
  22 my $cgi = new CGI;
  23 my $project = "";
  24 my $action = "";
  25 my $hash = "";
  26 my $hash_parent = "";
  27 my $view_back;
  28 my $myself = $cgi->url(-absolute => 1);
  29 my $url_parm = $cgi->url(-path => 1);
  30 $url_parm =~ s/.*$myself//;
  31
  32 # get values from url
  33 if ($url_parm =~ m#/(.+)/commit/([0-9a-fA-F]+)$#) {
  34         $project = $1;
  35         $action = "commit";
  36         $hash = $2;
  37 } elsif ($url_parm =~ m#/(.+)/commitdiff/([0-9a-fA-F]+)$#) {
  38         $project = $1;
  39         $action = "commitdiff";
  40         $hash = $2;
  41 } elsif ($url_parm =~ m#/(.+)/blobdiff/([0-9a-fA-F]+)/([0-9a-fA-F]+)$#) {
  42         $project = $1;
  43         $action = "blobdiff";
  44         $hash = $2;
  45         $hash_parent = $3;
  46 } elsif ($url_parm =~ m#/(.+)/blob/([0-9a-fA-F]+)$#) {
  47         $project = $1;
  48         $action = "blob";
  49         $hash = $2;
  50 } elsif ($url_parm =~ m#/(.+)/tree/([0-9a-fA-F]+)$#) {
  51         $project = $1;
  52         $action = "tree";
  53         $hash = $2;
  54 } elsif ($url_parm =~ m#/(.+)/log/([0-9]+)$#) {
  55         $project = $1;
  56         $action = "log";
  57         $view_back = $2;
  58 } elsif ($url_parm =~ m#/(.+)/log$#) {
  59         $project = $1;
  60         $action = "log";
  61         $view_back = 1;
  62 } elsif ($url_parm =~ m#/(.+)/rss$#) {
  63         $project = $1;
  64         $action = "rss";
  65         $view_back = 1;
  66 } elsif ($url_parm =~ m#/git-logo.png$#) {
  67         print $cgi->header(-type => 'image/png');
  68         print   "\211\120\116\107\015\012\032\012\000\000\000\015\111\110\104\122".
  69                 "\000\000\000\110\000\000\000\033\004\003\000\000\000\055\331\324".
  70                 "\055\000\000\000\030\120\114\124\105\377\377\377\140\140\135\260".
  71                 "\257\252\000\200\000\316\315\307\300\000\000\350\350\346\367\367".
  72                 "\366\225\014\247\107\000\000\000\163\111\104\101\124\050\317\143".
  73                 "\110\147\040\004\112\134\030\012\010\052\142\123\141\040\002\010".
  74                 "\015\151\105\254\241\241\001\060\014\223\140\066\046\122\221\261".
  75                 "\001\021\326\341\125\144\154\154\314\154\154\014\242\014\160\052".
  76                 "\142\006\052\301\142\035\263\001\002\123\244\010\350\000\003\030".
  77                 "\046\126\021\324\341\040\227\033\340\264\016\065\044\161\051\202".
  78                 "\231\060\270\223\012\021\271\105\210\301\215\240\242\104\041\006".
  79                 "\047\101\202\100\205\301\105\211\040\160\001\000\244\075\041\305".
  80                 "\022\034\232\376\000\000\000\000\111\105\116\104\256\102\140\202";
  81         exit;
  82 } elsif ($url_parm =~ m#/(.+)$#) {
  83         $project = $1;
  84         $action = "log";
  85         $view_back = 1;
  86 }
  87
  88 # sanitize input
  89 $project =~ s#\/\.+##g;
  90
  91 $ENV{'SHA1_FILE_DIRECTORY'} = "$projectroot/$project/.git/objects";
  92
  93 sub git_header_html {
  94         print $cgi->header(-type => 'text/html; charset: utf-8');
  95 print <<EOF;
  96 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
  97 <html>
  98 <head>
  99         <title>git - $project $action</title>
 100   <link rel="alternate" title="$project log" href="$myself/$project/rss" type="application/rss+xml">
 101         <style type="text/css">
 102                 body { font-family: sans-serif; font-size: 12px; margin:25px; }
 103                 div.body { border-width:1px; border-style:solid; border-color:#D9D8D1; }
 104                 div.head1 { font-size:20px; padding:8px; background-color: #D9D8D1; font-weight:bold; }
 105                 div.head1 a:visited { color:#0000cc; }
 106                 div.head1 a:hover { color:#880000; }
 107                 div.head1 a:active { color:#880000; }
 108                 div.head2 { padding:8px; }
 109                 div.head2 a:visited { color:#0000cc; }
 110                 div.head2 a:hover { color:#880000; }
 111                 div.head2 a:active { color:#880000; }
 112                 div.shortlog { padding:8px; background-color: #D9D8D1; font-weight:bold; }
 113                 table { padding:0px; margin:0px; width:100%; }
 114                 tr { vertical-align:top; }
 115                 td { padding:8px; margin:0px; font-family: sans-serif; font-size: 12px; }
 116                 td.head1 { background-color: #D9D8D1; font-weight:bold; }
 117                 td.head1 a { color:#000000; text-decoration:none; }
 118                 td.head1 a:hover { color:#880000; text-decoration:underline; }
 119                 td.head1 a:visited { color:#000000; }
 120                 td.head2 { background-color: #EDECE6; font-family: monospace; font-size:12px; }
 121                 td.head3 { background-color: #EDECE6; font-size:10px; }
 122                 div.signed_off { color: #a9a8a1; }
 123                 a { color:#0000cc; }
 124                 a:hover { color:#880000; }
 125                 a:visited { color:#880000; }
 126                 a:active { color:#880000; }
 127                 pre { padding:8px; }
 128         </style>
 129 </head>
 130 <body>
 131 EOF
 132         print "<div class=\"body\">\n";
 133         print "<div class=\"head1\">";
 134         print "<a href=\"http://kernel.org/pub/software/scm/git/\"><img src=\"$myself/git-logo.png\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/></a>";
 135         if ($defaultprojects ne "") {
 136                 print $cgi->a({-href => "$myself"}, "projects") . " / ";
 137         }
 138         if ($project ne "") {
 139                 print $cgi->a({-href => "$myself/$project/log"}, $project);
 140         }
 141         if ($action ne "") {
 142                 print " / $action";
 143         }
 144         print "</div>\n";
 145 }
 146
 147 sub git_footer_html {
 148         print "</div>";
 149         print $cgi->end_html();
 150 }
 151
 152 sub git_head {
 153         open my $fd, "$projectroot/$project/.git/HEAD";
 154         my $head = <$fd>;
 155         close $fd;
 156         chomp $head;
 157         return $head;
 158 }
 159
 160 sub git_commit {
 161         my $commit = shift;
 162         my %co;
 163         my @parents;
 164
 165         open my $fd, "-|", "$gitbin/cat-file", "commit", $commit;
 166         while (my $line = <$fd>) {
 167                 chomp($line);
 168                 last if $line eq "";
 169                 if ($line =~ m/^tree (.*)$/) {
 170                         $co{'tree'} = $1;
 171                 } elsif ($line =~ m/^parent (.*)$/) {
 172                         push @parents, $1;
 173                 } elsif ($line =~ m/^committer (.*>) ([0-9]+) (.*)$/) {
 174                         $co{'committer'} = $1;
 175                         $co{'committer_time'} = $2;
 176                         $co{'committer_timezone'} = $3;
 177                 } elsif ($line =~ m/^author (.*>) ([0-9]+) (.*)$/) {
 178                         $co{'$author'} = $1;
 179                         $co{'$author_time'} = $2;
 180                         $co{'$author_timezone'} = $3;
 181                 }
 182         }
 183         my $shortlog = <$fd>;
 184         chomp($shortlog);
 185         $co{'shortlog'} = escapeHTML($shortlog);
 186         my $comment = $shortlog . "<br/>";
 187         while (my $line = <$fd>) {
 188                         chomp($line);
 189                         if ($line =~ m/signed-off-by:/i) {
 190                                 $comment .= '<div class="signed_off">' . escapeHTML($line) . "<br/></div>\n";
 191                         } else {
 192                                 $comment .= escapeHTML($line) . "<br/>\n";
 193                         }
 194         }
 195         $co{'comment'} = $comment;
 196         close $fd;
 197
 198         return %co;
 199 }
 200
 201 sub git_diff {
 202         my $old_name = shift || "/dev/null";
 203         my $new_name = shift || "/dev/null";
 204         my $old = shift;
 205         my $new = shift;
 206
 207         my $tmp_old = "/dev/null";
 208         my $tmp_new = "/dev/null";
 209         my $old_label = "/dev/null";
 210         my $new_label = "/dev/null";
 211
 212         # create temp from-file
 213         if ($old ne "") {
 214                 open my $fd2, "> $gittmp/$old";
 215                 open my $fd, "-|", "$gitbin/cat-file", "blob", $old;
 216                 while (my $line = <$fd>) {
 217                         print $fd2 $line;
 218                 }
 219                 close $fd2;
 220                 close $fd;
 221                 $tmp_old = "$gittmp/$old";
 222                 $old_label = "a/$old_name";
 223         }
 224
 225         # create tmp to-file
 226         if ($new ne "") {
 227                 open my $fd2, "> $gittmp/$new";
 228                 open my $fd, "-|", "$gitbin/cat-file", "blob", $new;
 229                 while (my $line = <$fd>) {
 230                         print $fd2 $line;
 231                 }
 232                 close $fd2;
 233                 close $fd;
 234                 $tmp_new = "$gittmp/$new";
 235                 $new_label = "b/$new_name";
 236         }
 237
 238         open my $fd, "-|", "/usr/bin/diff", "-L", $old_label, "-L", $new_label, "-u", "-p", $tmp_old, $tmp_new;
 239         print "<span style =\"color: #000099;\">===== ";
 240         if ($old ne "") {
 241                 print $cgi->a({-href => "$myself/$project/blob/$old"}, $old);
 242         } else {
 243                 print $old_name;
 244         }
 245         print " vs ";
 246         if ($new ne "") {
 247                 print $cgi->a({-href => "$myself/$project/blob/$new"}, $new);
 248         } else {
 249                 print $new_name;
 250         }
 251         print " =====</span>\n";
 252         while (my $line = <$fd>) {
 253                 my $char = substr($line,0,1);
 254                 print '<span style ="color: #008800;">' if $char eq '+';
 255                 print '<span style ="color: #CC0000;">' if $char eq '-';
 256                 print '<span style ="color: #990099;">' if $char eq '@';
 257                 print escapeHTML($line);
 258                 print '</span>' if $char eq '+' or $char eq '-' or $char eq '@';
 259         }
 260         close $fd;
 261         unlink("$gittmp/$new");
 262         unlink("$gittmp/$old");
 263 }
 264
 265 if ($project eq "") {
 266         opendir(my $fd, "$projectroot/$defaultprojects");
 267         my (@path) = grep(!/^\./, readdir($fd));
 268         closedir($fd);
 269         git_header_html();
 270         print "<div class=\"head2\">\n";
 271         print "<br/><br/>\n";
 272         foreach my $line (@path) {
 273                 if (-e "$projectroot/$defaultprojects/$line/.git/HEAD") {
 274                         print $cgi->a({-href => "$myself/$defaultprojects/$line/log"}, $line) . "<br/>\n";
 275                 }
 276         }
 277         print "</div><br/>";
 278         git_footer_html();
 279         exit;
 280 }
 281
 282 if ($action eq "blob") {
 283         git_header_html();
 284         print "<br/><br/>\n";
 285         print "<pre>\n";
 286         open my $fd, "-|", "$gitbin/cat-file", "blob", $hash;
 287         my $nr;
 288         while (my $line = <$fd>) {
 289                 $nr++;
 290                 print "$nr\t" . escapeHTML($line);;
 291         }
 292         close $fd;
 293         print "</pre>\n";
 294         print "<br/>";
 295         git_footer_html();
 296 } elsif ($action eq "tree") {
 297         if ($hash eq "") {
 298                 $hash = git_head();
 299         }
 300         open my $fd, "-|", "$gitbin/ls-tree", $hash;
 301         my (@entries) = map { chomp; $_ } <$fd>;
 302         close $fd;
 303         git_header_html();
 304         print "<br/><br/>\n";
 305         print "<pre>\n";
 306         foreach my $line (@entries) {
 307                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
 308                 $line =~ m/^([0-9]+)\t(.*)\t(.*)\t(.*)$/;
 309                 my $t_type = $2;
 310                 my $t_hash = $3;
 311                 my $t_name = $4;
 312                 if ($t_type eq "blob") {
 313                         print "BLOB\t" . $cgi->a({-href => "$myself/$project/blob/$3"}, $4) . "\n";
 314                 } elsif ($t_type eq "tree") {
 315                         print "TREE\t" . $cgi->a({-href => "$myself/$project/tree/$3"}, $4) . "\n";
 316                 }
 317         }
 318         print "</pre>\n";
 319         print "<br/>";
 320         git_footer_html();
 321 } elsif ($action eq "log" || $action eq "rss") {
 322         open my $fd, "-|", "$gitbin/rev-tree", git_head();
 323         my (@revtree) = reverse sort map { chomp; $_ } <$fd>;
 324         close $fd;
 325
 326         if ($action eq "log") {
 327                 git_header_html();
 328                 print "<div class=\"head2\">\n";
 329                 print "view  ";
 330                 print $cgi->a({-href => "$myself/$project/log"}, "last day") . " | ";
 331                 print $cgi->a({-href => "$myself/$project/log/7"}, "week") . " | ";
 332                 print $cgi->a({-href => "$myself/$project/log/31"}, "month") . " | ";
 333                 print $cgi->a({-href => "$myself/$project/log/365"}, "year") . " | ";
 334                 print $cgi->a({-href => "$myself/$project/log/0"}, "all") . "<br/>\n";
 335                 print "<br/><br/>\n";
 336                 print "</div>\n";
 337                 print "<table cellspacing=\"0\" class=\"log\">\n";
 338         } elsif ($action eq "rss") {
 339                 print $cgi->header(-type => 'text/xml; charset: utf-8');
 340                 print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
 341                       "<rss version=\"0.91\">\n";
 342                 print "<channel>\n";
 343                 print "<title>$project</title>\n".
 344                       "<link> " . $cgi->url() . "/$project/log</link>\n".
 345                       "<description>$project log</description>\n".
 346                       "<language>en</language>\n";
 347         }
 348
 349         for (my $i = 0; $i <= $#revtree; $i++) {
 350                 my $rev = $revtree[$i];
 351                 #foreach my $rev (@revtree) {
 352                 # '1114106118 755e3010ee10dadf42a8a80770e1b115fb038d9b:1 2af17b4854036a1c2ec6c101d93c8dd1ed80d24e:1'
 353                 last if !($rev =~ m/^([0-9]+) ([0-9a-fA-F]+).* ([0-9a-fA-F]+)/);
 354                 my $time = $1;
 355                 my $commit = $2;
 356                 my $parent = $3;
 357                 my @parents;
 358                 my ($author, $author_time, $author_timezone);
 359                 my ($committer, $committer_time, $committer_timezone);
 360                 my $tree;
 361                 my $comment;
 362                 my $shortlog;
 363                 open my $fd, "-|", "$gitbin/cat-file", "commit", $commit;
 364                 while (my $line = <$fd>) {
 365                         chomp($line);
 366                         last if $line eq "";
 367                         if ($line =~ m/^tree (.*)$/) {
 368                                 $tree = $1;
 369                         } elsif ($line =~ m/^parent (.*)$/) {
 370                                 push @parents, $1;
 371                         } elsif ($line =~ m/^committer (.*>) ([0-9]+) (.*)$/) {
 372                                 $committer = $1;
 373                                 $committer_time = $2;
 374                                 $committer_timezone = $3;
 375                         } elsif ($line =~ m/^author (.*>) ([0-9]+) (.*)$/) {
 376                                 $author = $1;
 377                                 $author_time = $2;
 378                                 $author_timezone = $3;
 379                         }
 380                 }
 381                 $shortlog = <$fd>;
 382                 chomp($shortlog);
 383                 $shortlog = escapeHTML($shortlog);
 384                 $comment = $shortlog . "<br/>";
 385                 while (my $line = <$fd>) {
 386                                 chomp($line);
 387                                 if ($line =~ m/signed-off-by:/i) {
 388                                         $comment .= '<div class="signed_off">' . escapeHTML($line) . "<br/></div>\n";
 389                                 } else {
 390                                         $comment .= escapeHTML($line) . "<br/>\n";
 391                                 }
 392                 }
 393                 close $fd;
 394
 395                 my $age = time-$committer_time;
 396                 my $age_string;
 397                 if ($age > 60*60*24*365*2) {
 398                         $age_string = int $age/60/60/24/365;
 399                         $age_string .= " years ago";
 400                 } elsif ($age > 60*60*24*365/12*2) {
 401                         $age_string = int $age/60/60/24/365/12;
 402                         $age_string .= " months ago";
 403                 } elsif ($age > 60*60*24*7*2) {
 404                         $age_string = int $age/60/60/24/7;
 405                         $age_string .= " weeks ago";
 406                 } elsif ($age > 60*60*24*2) {
 407                         $age_string = int $age/60/60/24;
 408                         $age_string .= " days ago";
 409                 } elsif ($age > 60*60*2) {
 410                         $age_string = int $age/60/60;
 411                         $age_string .= " hours ago";
 412                 } elsif ($age > 60*2) {
 413                         $age_string = int $age/60;
 414                         $age_string .= " minutes ago";
 415                 }
 416                 if ($action eq "log") {
 417                         if ($view_back > 0 && $age > $view_back*60*60*24) {
 418                                 if ($i == 0) {
 419                                         print "<tr>\n";
 420                                         print "<td class=\"head1\"> Last change $age_string. </td>\n";
 421                                         print "</tr>\n";
 422                                 }
 423                                 last;
 424                         }
 425                         print "<tr>\n";
 426                         print "<td class=\"head1\">" . $age_string . "</td>\n";
 427                         print "<td class=\"head1\">" . $cgi->a({-href => "$myself/$project/commit/$commit"}, $shortlog) . "</td>";
 428                         print "</tr>\n";
 429                         print "<tr>\n";
 430                         print "<td class=\"head3\">";
 431                         print $cgi->a({-href => "$myself/$project/commitdiff/$commit"}, "view diff") . "<br/>\n";
 432                         print $cgi->a({-href => "$myself/$project/commit/$commit"}, "view commit") . "<br/>\n";
 433                         print $cgi->a({-href => "$myself/$project/tree/$tree"}, "view tree") . "<br/>\n";
 434                         print "</td>\n";
 435                         print "<td class=\"head2\">\n";
 436                         print "author &nbsp; &nbsp;" . escapeHTML($author) . " [" . gmtime($author_time) . " " . $author_timezone . "]<br/>\n";
 437                         print "committer " . escapeHTML($committer) . " [" . gmtime($committer_time) . " " . $committer_timezone . "]<br/>\n";
 438                         print "commit &nbsp; &nbsp;$commit<br/>\n";
 439                         print "tree &nbsp; &nbsp; &nbsp;$tree<br/>\n";
 440                         foreach my $par (@parents) {
 441                                 print "parent &nbsp; &nbsp;$par<br/>\n";
 442                         }
 443                         print "</td>";
 444                         print "</tr>\n";
 445                         print "<tr>\n";
 446                         print "<td></td>\n";
 447                         print "<td>\n";
 448                         print "$comment<br/><br/>\n";
 449                         print "</td>";
 450                         print "</tr>\n";
 451                 } elsif ($action eq "rss") {
 452                         last if ($i >= 12);
 453                         print "<item>\n\t<title>$age_string: $shortlog</title>\n";
 454                         print "\t<link> " . $cgi->url() . "/$project/commit/$commit</link>\n";
 455                         print "</item>\n";
 456                 }
 457         }
 458         if ($action eq "log") {
 459                 print "</table>\n";
 460                 git_footer_html();
 461         } elsif ($action eq "rss") {
 462                 print "</channel></rss>";
 463         }
 464 } elsif ($action eq "commit") {
 465         my $parent = "";
 466         open my $fd, "-|", "$gitbin/cat-file", "commit", $hash;
 467         while (my $line = <$fd>) {
 468                 chomp($line);
 469                 last if $line eq "";
 470                 if ($line =~ m/^parent (.*)$/ && $parent eq "") {
 471                         $parent = $1;
 472                 }
 473         }
 474         my $shortlog = <$fd>;
 475         $shortlog = escapeHTML($shortlog);
 476         close $fd;
 477
 478         open $fd, "-|", "$gitbin/diff-tree", "-r", $parent, $hash;
 479         my (@difftree) = map { chomp; $_ } <$fd>;
 480         close $fd;
 481
 482         git_header_html();
 483         print "<div class=\"head2\">\n";
 484         print "view " . $cgi->a({-href => "$myself/$project/commitdiff/$hash"}, "diff") . "</div><br/><br/>\n";
 485         print "<div class=\"shortlog\">$shortlog<br/></div>\n";
 486         print "<pre>\n";
 487         foreach my $line (@difftree) {
 488                 # '*100644->100644      blob    9f91a116d91926df3ba936a80f020a6ab1084d2b->bb90a0c3a91eb52020d0db0e8b4f94d30e02d596      net/ipv4/route.c'
 489                 # '+100644      blob    4a83ab6cd565d21ab0385bac6643826b83c2fcd4        arch/arm/lib/bitops.h'
 490                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 491                 my $op = $1;
 492                 my $mode = $2;
 493                 my $type = $3;
 494                 my $id = $4;
 495                 my $file = $5;
 496                 if ($type eq "blob") {
 497                         if ($op eq "+") {
 498                                 print "added\t" . $cgi->a({-href => "$myself/$project/blob/$id"}, $file) . "\n";
 499                         } elsif ($op eq "-") {
 500                                 print "removed\t" . $cgi->a({-href => "$myself/$project/blob/$id"}, $file) . "\n";
 501                         } elsif ($op eq "*") {
 502                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
 503                                 my $old = $1;
 504                                 my $new = $2;
 505                                 print "changed\t" . $cgi->a({-href => "$myself/$project/blobdiff/$old/$new"}, $file) . "\n";
 506                         }
 507                 }
 508         }
 509         print "</pre>\n";
 510         print "<br/>";
 511         git_footer_html();
 512 } elsif ($action eq "blobdiff") {
 513         git_header_html();
 514         print "<br/><br/>\n";
 515         print "<pre>\n";
 516         git_diff($hash, $hash_parent, $hash, $hash_parent);
 517         print "</pre>\n";
 518         print "<br/>";
 519         git_footer_html();
 520 } elsif ($action eq "commitdiff") {
 521         my $parent = "";
 522         open my $fd, "-|", "$gitbin/cat-file", "commit", $hash;
 523         while (my $line = <$fd>) {
 524                 chomp($line);
 525                 last if $line eq "";
 526                 if ($line =~ m/^parent (.*)$/ && $parent eq "") {
 527                         $parent = $1;
 528                 }
 529         }
 530         my $shortlog = <$fd>;
 531         $shortlog = escapeHTML($shortlog);
 532         close $fd;
 533
 534         open $fd, "-|", "$gitbin/diff-tree", "-r", $parent, $hash;
 535         my (@difftree) = map { chomp; $_ } <$fd>;
 536         close $fd;
 537
 538         git_header_html();
 539         print "<div class=\"head2\">\n";
 540         print "view " . $cgi->a({-href => "$myself/$project/commit/$hash"}, "commit") . "</div><br/><br/>\n";
 541         print "<div class=\"shortlog\">$shortlog<br/></div>\n";
 542         print "<pre>\n";
 543         foreach my $line (@difftree) {
 544                 # '*100644->100644      blob    8e5f9bbdf4de94a1bc4b4da8cb06677ce0a57716->8da3a306d0c0c070d87048d14a033df02f40a154      Makefile'
 545                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 546                 my $op = $1;
 547                 my $mode = $2;
 548                 my $type = $3;
 549                 my $id = $4;
 550                 my $file = $5;
 551                 if ($type eq "blob") {
 552                         if ($op eq "+") {
 553                                 git_diff("", $file, "", $id);
 554                         } elsif ($op eq "-") {
 555                                 git_diff($file, "", $id, "");
 556                         } elsif ($op eq "*") {
 557                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
 558                                 git_diff($file, $file, $1, $2);
 559                         }
 560                 }
 561         }
 562         print "</pre>\n";
 563         print "<br/>";
 564         git_footer_html();
 565 }