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 program 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 use Fcntl ':mode';
  15
  16 my $cgi = new CGI;
  17 my $version =           "133";
  18 my $my_url =            $cgi->url();
  19 my $my_uri =            $cgi->url(-absolute => 1);
  20 my $rss_link = "";
  21
  22 # absolute fs-path which will be prepended to the project path
  23 my $projectroot =       "/pub/scm";
  24
  25 # location of the git-core binaries
  26 my $gitbin =            "/usr/bin";
  27
  28 # location for temporary files needed for diffs
  29 my $gittmp =            "/tmp/gitweb";
  30
  31 # target of the home link on top of all pages
  32 #my $home_link =                $my_uri;
  33 my $home_link =         "/git";
  34
  35 # source of projects list
  36 #my $projects_list = $projectroot;
  37 my $projects_list = "index/index.txt";
  38
  39 # input validation and dispatch
  40 my $action = $cgi->param('a');
  41 if (defined $action) {
  42         if ($action =~ m/[^0-9a-zA-Z\.\-]+/) {
  43                 undef $action;
  44                 die_error(undef, "Invalid action parameter.");
  45         }
  46         if ($action eq "git-logo.png") {
  47                 git_logo();
  48                 exit;
  49         }
  50 } else {
  51         $action = "log";
  52 }
  53
  54 my $project = $cgi->param('p');
  55 if (defined $project) {
  56         if ($project =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
  57                 undef $project;
  58                 die_error(undef, "Non-canonical project parameter.");
  59         }
  60         if ($project =~ m/[^a-zA-Z0-9_\.\/\-\+\#\~]/) {
  61                 undef $project;
  62                 die_error(undef, "Invalid character in project parameter.");
  63         }
  64         if (!(-d "$projectroot/$project")) {
  65                 undef $project;
  66                 die_error(undef, "No such directory.");
  67         }
  68         if (!(-e "$projectroot/$project/HEAD")) {
  69                 undef $project;
  70                 die_error(undef, "No such project.");
  71         }
  72         $rss_link = "<link rel=\"alternate\" title=\"$project log\" href=\"$my_uri?p=$project;a=rss\" type=\"application/rss+xml\"/>";
  73         $ENV{'SHA1_FILE_DIRECTORY'} = "$projectroot/$project/objects";
  74 } else {
  75         git_project_list($projects_list);
  76         exit;
  77 }
  78
  79 my $file_name = $cgi->param('f');
  80 if (defined $file_name) {
  81         if ($file_name =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
  82                 undef $file_name;
  83                 die_error(undef, "Non-canonical file parameter.");
  84         }
  85         if ($file_name =~ m/[^a-zA-Z0-9_\.\/\-\+\#\~\:\!]/) {
  86                 undef $file_name;
  87                 die_error(undef, "Invalid character in file parameter.");
  88         }
  89 }
  90
  91 my $hash = $cgi->param('h');
  92 if (defined $hash && !($hash =~ m/^[0-9a-fA-F]{40}$/)) {
  93         undef $hash;
  94         die_error(undef, "Invalid hash parameter.");
  95 }
  96
  97 my $hash_parent = $cgi->param('hp');
  98 if (defined $hash_parent && !($hash_parent =~ m/^[0-9a-fA-F]{40}$/)) {
  99         undef $hash_parent;
 100         die_error(undef, "Invalid hash_parent parameter.");
 101 }
 102
 103 my $hash_base = $cgi->param('hb');
 104 if (defined $hash_base && !($hash_base =~ m/^[0-9a-fA-F]{40}$/)) {
 105         undef $hash_base;
 106         die_error(undef, "Invalid parent hash parameter.");
 107 }
 108
 109 my $time_back = $cgi->param('t');
 110 if (defined $time_back) {
 111         if ($time_back =~ m/^[^0-9]+$/) {
 112                 undef $time_back;
 113                 die_error(undef, "Invalid time parameter.");
 114         }
 115 }
 116
 117 if ($action eq "blob") {
 118         git_blob();
 119         exit;
 120 } elsif ($action eq "tree") {
 121         git_tree();
 122         exit;
 123 } elsif ($action eq "rss") {
 124         git_rss();
 125         exit;
 126 } elsif ($action eq "commit") {
 127         git_commit();
 128         exit;
 129 } elsif ($action eq "log") {
 130         git_log();
 131         exit;
 132 } elsif ($action eq "blobdiff") {
 133         git_blobdiff();
 134         exit;
 135 } elsif ($action eq "commitdiff") {
 136         git_commitdiff();
 137         exit;
 138 } elsif ($action eq "history") {
 139         git_history();
 140         exit;
 141 } else {
 142         undef $action;
 143         die_error(undef, "Unknown action.");
 144         exit;
 145 }
 146
 147 sub git_header_html {
 148         my $status = shift || "200 OK";
 149
 150         my $title = "git";
 151         if (defined $project) {
 152                 $title .= " - $project";
 153                 if (defined $action) {
 154                         $title .= "/$action";
 155                 }
 156         }
 157         print $cgi->header(-type=>'text/html',  -charset => 'utf-8', -status=> $status);
 158         print <<EOF;
 159 <?xml version="1.0" encoding="utf-8"?>
 160 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 161 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
 162 <!-- git web interface v$version, (C) 2005, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke <ch\@gierke.de> -->
 163 <head>
 164 <title>$title</title>
 165 $rss_link
 166 <style type="text/css">
 167 body { font-family: sans-serif; font-size: 12px; margin:0px; border:solid #d9d8d1; border-width:1px; margin:10px; }
 168 a { color:#0000cc; }
 169 a:hover, a:visited, a:active { color:#880000; }
 170 div.page_header { height:25px; padding:8px; font-size:18px; font-weight:bold; background-color:#d9d8d1; }
 171 div.page_header a:visited { color:#0000cc; }
 172 div.page_header a:hover { color:#880000; }
 173 div.page_nav { padding:8px; }
 174 div.page_nav a:visited { color:#0000cc; }
 175 div.page_path { font-weight:bold; padding:8px; border:solid #d9d8d1; border-width:0px 0px 1px}
 176 div.page_footer { height:17px; padding:4px 8px; background-color: #d9d8d1; }
 177 div.page_footer_text { float:left; color:#555555; font-style:italic; }
 178 div.page_body { padding:8px; }
 179 div.title, a.title {
 180         display:block; padding:6px 8px;
 181         font-weight:bold; background-color:#edece6; text-decoration:none; color:#000000;
 182 }
 183 a.title:hover { background-color: #d9d8d1; }
 184 div.title_text { padding:6px 8px; border: solid #d9d8d1; border-width:0px 0px 1px; }
 185 div.log_body { padding:8px 8px 8px 150px; }
 186 span.log_age { position:relative; float:left; width:142px; font-style:italic; }
 187 div.log_link {
 188         font-size:10px; font-family:sans-serif; font-style:normal;
 189         position:relative; float:left; width:142px;
 190 }
 191 div.list { display:block; padding:4px 8px 2px; font-weight:bold; }
 192 div.list_head {
 193         display:block; padding:6px 6px 4px; border:solid #d9d8d1;
 194         border-width:0px 0px 1px; font-style:italic;
 195 }
 196 div.list a { text-decoration:none; color:#000000; }
 197 div.list a:hover { color:#880000; }
 198 div.link {
 199         padding:4px 8px 6px; border:solid #d9d8d1; border-width:0px 0px 1px;
 200         font-family:sans-serif; font-size:10px;
 201 }
 202 td { padding:5px 15px 0px 0px; font-size:12px; }
 203 th { padding-right:10px; font-size:12px; text-align:left; }
 204 td.link { font-family:sans-serif; font-size:10px; }
 205 td.pre { font-family:monospace; font-size:12px; white-space:pre; padding:2px 15px 0px 0px; }
 206 div.pre { font-family:monospace; font-size:12px; white-space:pre; }
 207 div.diff_info { font-family:monospace; color:#000099; background-color:#edece6; font-style:italic; }
 208 a.rss_logo { float:right; padding:3px 0px; width:35px; line-height:10px;
 209         border:1px solid; border-color:#fcc7a5 #7d3302 #3e1a01 #ff954e;
 210         color:#ffffff; background-color:#ff6600;
 211         font-weight:bold; font-family:sans-serif; font-size:10px;
 212         text-align:center; text-decoration:none;
 213 }
 214 a.rss_logo:hover { background-color:#ee5500; }
 215 </style>
 216 </head>
 217 <body>
 218 EOF
 219         print "<div class=\"page_header\">\n" .
 220               "<a href=\"http://kernel.org/pub/software/scm/cogito\">" .
 221               "<img src=\"$my_uri?a=git-logo.png\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/></a>";
 222         print $cgi->a({-href => $home_link}, "projects") . " / ";
 223         if (defined $project) {
 224                 print $cgi->a({-href => "$my_uri?p=$project;a=log"}, escapeHTML($project));
 225                 if (defined $action) {
 226                         print " / $action";
 227                 }
 228         }
 229         print "</div>\n";
 230 }
 231
 232 sub git_footer_html {
 233         print "<div class=\"page_footer\">\n";
 234         if (defined $project) {
 235                 my $descr = git_read_description($project);
 236                 if (defined $descr) {
 237                         print "<div class=\"page_footer_text\">" . escapeHTML($descr) . "</div>\n";
 238                 }
 239                 print $cgi->a({-href => "$my_uri?p=$project;a=rss", -class => "rss_logo"}, "RSS") . "\n";
 240         }
 241         print "</div>\n" .
 242               "</body>\n" .
 243               "</html>";
 244 }
 245
 246 sub die_error {
 247         my $status = shift || "403 Forbidden";
 248         my $error = shift || "Malformed query, file missing or permission denied";
 249
 250         git_header_html($status);
 251         print "<div class=\"page_body\">\n" .
 252               "<br/><br/>\n";
 253         print "$status - $error\n";
 254         print "<br/></div>\n";
 255         git_footer_html();
 256         exit;
 257 }
 258
 259 sub git_get_type {
 260         my $hash = shift;
 261
 262         open my $fd, "-|", "$gitbin/git-cat-file -t $hash" || return;
 263         my $type = <$fd>;
 264         close $fd;
 265         chomp $type;
 266         return $type;
 267 }
 268
 269 sub git_read_head {
 270         my $path = shift;
 271
 272         open my $fd, "$projectroot/$path/HEAD" || return undef;
 273         my $head = <$fd>;
 274         close $fd;
 275         chomp $head;
 276         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 277                 return $head;
 278         } else {
 279                 return undef;
 280         }
 281 }
 282
 283 sub git_read_description {
 284         my $path = shift;
 285
 286         open my $fd, "$projectroot/$path/description" || return undef;
 287         my $descr = <$fd>;
 288         close $fd;
 289         chomp $descr;
 290         return $descr;
 291 }
 292
 293 sub git_read_commit {
 294         my $commit = shift;
 295         my %co;
 296         my @parents;
 297
 298         open my $fd, "-|", "$gitbin/git-cat-file commit $commit" || return;
 299         while (my $line = <$fd>) {
 300                 last if $line eq "\n";
 301                 chomp $line;
 302                 if ($line =~ m/^tree (.*)$/) {
 303                         $co{'tree'} = $1;
 304                 } elsif ($line =~ m/^parent (.*)$/) {
 305                         push @parents, $1;
 306                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 307                         $co{'author'} = $1;
 308                         $co{'author_epoch'} = $2;
 309                         $co{'author_tz'} = $3;
 310                         $co{'author_name'} = $co{'author'};
 311                         $co{'author_name'} =~ s/ <.*//;
 312                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 313                         $co{'committer'} = $1;
 314                         $co{'committer_epoch'} = $2;
 315                         $co{'committer_tz'} = $3;
 316                         $co{'committer_name'} = $co{'committer'};
 317                         $co{'committer_name'} =~ s/ <.*//;
 318                 }
 319         }
 320         $co{'parents'} = \@parents;
 321         $co{'parent'} = $parents[0];
 322         my (@comment) = map { chomp; $_ } <$fd>;
 323         $co{'comment'} = \@comment;
 324         $comment[0] =~ m/^(.{0,60}[^ ]*)/;
 325         $co{'title'} = $1;
 326         if ($comment[0] ne $co{'title'}) {
 327                 $co{'title'} .= " [...]";
 328         }
 329         close $fd || return;
 330         if (!defined $co{'tree'}) {
 331                 return undef
 332         };
 333
 334         my $age = time - $co{'committer_epoch'};
 335         $co{'age'} = $age;
 336         if ($age > 60*60*24*365*2) {
 337                 $co{'age_string'} = (int $age/60/60/24/365);
 338                 $co{'age_string'} .= " years ago";
 339         } elsif ($age > 60*60*24*365/12*2) {
 340                 $co{'age_string'} = int $age/60/60/24/365/12;
 341                 $co{'age_string'} .= " months ago";
 342         } elsif ($age > 60*60*24*7*2) {
 343                 $co{'age_string'} = int $age/60/60/24/7;
 344                 $co{'age_string'} .= " weeks ago";
 345         } elsif ($age > 60*60*24*2) {
 346                 $co{'age_string'} = int $age/60/60/24;
 347                 $co{'age_string'} .= " days ago";
 348         } elsif ($age > 60*60*2) {
 349                 $co{'age_string'} = int $age/60/60;
 350                 $co{'age_string'} .= " hours ago";
 351         } elsif ($age > 60*2) {
 352                 $co{'age_string'} = int $age/60;
 353                 $co{'age_string'} .= " minutes ago";
 354         } elsif ($age > 2) {
 355                 $co{'age_string'} = int $age;
 356                 $co{'age_string'} .= " seconds ago";
 357         } else {
 358                 $co{'age_string'} .= " right now";
 359         }
 360         return %co;
 361 }
 362
 363 sub git_diff_html {
 364         my $from = shift;
 365         my $from_name = shift;
 366         my $to = shift;
 367         my $to_name = shift;
 368
 369         my $from_tmp = "/dev/null";
 370         my $to_tmp = "/dev/null";
 371         my $pid = $$;
 372
 373         # create tmp from-file
 374         if (defined $from) {
 375                 $from_tmp = "$gittmp/gitweb_" . $$ . "_from";
 376                 open my $fd2, "> $from_tmp";
 377                 open my $fd, "-|", "$gitbin/git-cat-file blob $from";
 378                 my @file = <$fd>;
 379                 print $fd2 @file;
 380                 close $fd2;
 381                 close $fd;
 382         }
 383
 384         # create tmp to-file
 385         if (defined $to) {
 386                 $to_tmp = "$gittmp/gitweb_" . $$ . "_to";
 387                 open my $fd2, "> $to_tmp";
 388                 open my $fd, "-|", "$gitbin/git-cat-file blob $to";
 389                 my @file = <$fd>;
 390                 print $fd2 @file;
 391                 close $fd2;
 392                 close $fd;
 393         }
 394
 395         open my $fd, "-|", "/usr/bin/diff -u -p -L $from_name -L $to_name $from_tmp $to_tmp";
 396         while (my $line = <$fd>) {
 397                 chomp($line);
 398                 my $char = substr($line, 0, 1);
 399                 my $color = "";
 400                 if ($char eq '+') {
 401                         $color = " style=\"color:#008800;\"";
 402                 } elsif ($char eq '-') {
 403                         $color = " style=\"color:#cc0000;\"";
 404                 } elsif ($char eq '@') {
 405                         $color = " style=\"color:#990099;\"";
 406                 } elsif ($char eq '\\') {
 407                         # skip errors
 408                         next;
 409                 }
 410                 print "<div class=\"pre\"$color>" . escapeHTML($line) . "</div>\n";
 411         }
 412         close $fd;
 413
 414         if (defined $from) {
 415                 unlink($from_tmp);
 416         }
 417         if (defined $to) {
 418                 unlink($to_tmp);
 419         }
 420 }
 421
 422 sub mode_str {
 423         my $mode = oct shift;
 424
 425         if (S_ISDIR($mode & S_IFMT)) {
 426                 return 'drwxr-xr-x';
 427         } elsif (S_ISLNK($mode)) {
 428                 return 'lrwxrwxrwx';
 429         } elsif (S_ISREG($mode)) {
 430                 # git cares only about the executable bit
 431                 if ($mode & S_IXUSR) {
 432                         return '-rwxr-xr-x';
 433                 } else {
 434                         return '-rw-r--r--';
 435                 };
 436         } else {
 437                 return '----------';
 438         }
 439 }
 440
 441 sub file_type {
 442         my $mode = oct shift;
 443
 444         if (S_ISDIR($mode & S_IFMT)) {
 445                 return "directory";
 446         } elsif (S_ISLNK($mode)) {
 447                 return "symlink";
 448         } elsif (S_ISREG($mode)) {
 449                 return "file";
 450         } else {
 451                 return "unknown";
 452         }
 453 }
 454
 455 sub date_str {
 456         my $epoch = shift;
 457         my $tz = shift || "-0000";
 458
 459         my %date;
 460         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 461         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 462         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 463         $date{'hour'} = $hour;
 464         $date{'minute'} = $min;
 465         $date{'mday'} = $mday;
 466         $date{'day'} = $days[$wday];
 467         $date{'month'} = $months[$mon];
 468         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 469         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 470
 471         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 472         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 473         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 474         $date{'hour_local'} = $hour;
 475         $date{'minute_local'} = $min;
 476         $date{'tz_local'} = $tz;
 477         return %date;
 478 }
 479
 480 # git-logo (cached in browser for one day)
 481 sub git_logo {
 482         print $cgi->header(-type => 'image/png', -expires => '+1d');
 483         # cat git-logo.png | hexdump -e '16/1 " %02x"  "\n"' | sed 's/ /\\x/g'
 484         print   "\x89\x50\x4e\x47\x0d\x0a\x1a\x0a\x00\x00\x00\x0d\x49\x48\x44\x52" .
 485                 "\x00\x00\x00\x48\x00\x00\x00\x1b\x04\x03\x00\x00\x00\x2d\xd9\xd4" .
 486                 "\x2d\x00\x00\x00\x18\x50\x4c\x54\x45\xff\xff\xff\x60\x60\x5d\xb0" .
 487                 "\xaf\xaa\x00\x80\x00\xce\xcd\xc7\xc0\x00\x00\xe8\xe8\xe6\xf7\xf7" .
 488                 "\xf6\x95\x0c\xa7\x47\x00\x00\x00\x73\x49\x44\x41\x54\x28\xcf\x63" .
 489                 "\x48\x67\x20\x04\x4a\x5c\x18\x0a\x08\x2a\x62\x53\x61\x20\x02\x08" .
 490                 "\x0d\x69\x45\xac\xa1\xa1\x01\x30\x0c\x93\x60\x36\x26\x52\x91\xb1" .
 491                 "\x01\x11\xd6\xe1\x55\x64\x6c\x6c\xcc\x6c\x6c\x0c\xa2\x0c\x70\x2a" .
 492                 "\x62\x06\x2a\xc1\x62\x1d\xb3\x01\x02\x53\xa4\x08\xe8\x00\x03\x18" .
 493                 "\x26\x56\x11\xd4\xe1\x20\x97\x1b\xe0\xb4\x0e\x35\x24\x71\x29\x82" .
 494                 "\x99\x30\xb8\x93\x0a\x11\xb9\x45\x88\xc1\x8d\xa0\xa2\x44\x21\x06" .
 495                 "\x27\x41\x82\x40\x85\xc1\x45\x89\x20\x70\x01\x00\xa4\x3d\x21\xc5" .
 496                 "\x12\x1c\x9a\xfe\x00\x00\x00\x00\x49\x45\x4e\x44\xae\x42\x60\x82";
 497 }
 498
 499 sub get_file_owner {
 500         my $path = shift;
 501
 502         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
 503         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 504         if (!defined $gcos) {
 505                 return undef;
 506         }
 507         my $owner = $gcos;
 508         $owner =~ s/[,;].*$//;
 509         return $owner;
 510 }
 511
 512 sub git_project_list {
 513         my $project_list = shift;
 514         my @list;
 515
 516         if (-d $project_list) {
 517                 # search in directory
 518                 my $dir = $project_list;
 519                 opendir my $dh, $dir || return undef;
 520                 while (my $dir = readdir($dh)) {
 521                         if (-e "$projectroot/$dir/HEAD") {
 522                                 my $pr = {
 523                                         path => $dir,
 524                                 };
 525                                 push @list, $pr
 526                         }
 527                 }
 528                 closedir($dh);
 529         } elsif (-e $project_list) {
 530                 # read from file
 531                 # 'git/git.git:Linus Torvalds'
 532                 # 'linux/hotplug/udev.git'
 533                 open my $fd , $project_list || return undef;
 534                 while (my $line = <$fd>) {
 535                         chomp $line;
 536                         my ($path, $owner) = split ':', $line;
 537                         if (!defined $path) {
 538                                 next;
 539                         }
 540                         if (-e "$projectroot/$path/HEAD") {
 541                                 my $pr = {
 542                                         path => $path,
 543                                         owner => $owner,
 544                                 };
 545                                 push @list, $pr
 546                         }
 547                 }
 548                 close $fd;
 549         }
 550
 551         if (!@list) {
 552                 die_error(undef, "No project found.");
 553         }
 554         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 555
 556         git_header_html();
 557         print "<div class=\"page_body\"><br/>\n";
 558         print "<table cellspacing=\"0\">\n";
 559         print "<tr>\n" .
 560               "<th>Project</th>\n" .
 561               "<th>Description</th>\n" .
 562               "<th>Owner</th>\n" .
 563               "<th>last change</th>\n" .
 564               "</tr>\n";
 565         foreach my $pr (@list) {
 566                 my %proj = %$pr;
 567                 my $head = git_read_head($proj{'path'});
 568                 if (!defined $head) {
 569                         next;
 570                 }
 571                 $ENV{'SHA1_FILE_DIRECTORY'} = "$projectroot/$proj{'path'}/objects";
 572                 my %co = git_read_commit($head);
 573                 if (!%co) {
 574                         next;
 575                 }
 576                 my $descr = git_read_description($proj{'path'}) || "";
 577                 # get directory owner if not already specified
 578                 if (!defined $proj{'owner'}) {
 579                         $proj{'owner'} = get_file_owner("$projectroot/$proj{'path'}") || "";
 580                 }
 581                 print "<tr>\n" .
 582                       "<td>" . $cgi->a({-href => "$my_uri?p=" . $proj{'path'} . ";a=log"}, escapeHTML($proj{'path'})) . "</td>\n" .
 583                       "<td>$descr</td>\n" .
 584                       "<td><i>$proj{'owner'}</i></td>\n";
 585                 if ($co{'age'} < 60*60*2) {
 586                         print "<td><span style =\"color: #009900;\"><b><i>$co{'age_string'}</i></b></span></td>\n";
 587                 } elsif ($co{'age'} < 60*60*24*2) {
 588                         print "<td><span style =\"color: #009900;\"><i>$co{'age_string'}</i></span></td>\n";
 589                 } else {
 590                         print "<td><i>$co{'age_string'}</i></td>\n";
 591                 }
 592                 print "</tr>\n";
 593         }
 594         print "</table>\n" .
 595               "<br/>\n" .
 596               "</div>\n";
 597         git_footer_html();
 598 }
 599
 600 sub git_get_hash_by_path {
 601         my $base = shift;
 602         my $path = shift;
 603
 604         my $tree = $base;
 605         my @parts = split '/', $path;
 606         while (my $part = shift @parts) {
 607                 open my $fd, "-|", "$gitbin/git-ls-tree $tree" || die_error(undef, "Open git-ls-tree failed.");
 608                 my (@entries) = map { chomp; $_ } <$fd>;
 609                 close $fd || return undef;
 610                 foreach my $line (@entries) {
 611                         #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
 612                         $line =~ m/^([0-9]+)\t(.*)\t(.*)\t(.*)$/;
 613                         my $t_mode = $1;
 614                         my $t_type = $2;
 615                         my $t_hash = $3;
 616                         my $t_name = $4;
 617                         if ($t_name eq $part) {
 618                                 if (!(@parts)) {
 619                                         return $t_hash;
 620                                 }
 621                                 if ($t_type eq "tree") {
 622                                         $tree = $t_hash;
 623                                 }
 624                                 last;
 625                         }
 626                 }
 627         }
 628 }
 629
 630 sub git_blob {
 631         if (!defined $hash && defined $file_name) {
 632                 my $base = $hash_base || git_read_head($project);
 633                 $hash = git_get_hash_by_path($base, $file_name, "blob");
 634         }
 635         open my $fd, "-|", "$gitbin/git-cat-file blob $hash" || die_error(undef, "Open failed.");
 636         my $base = $file_name || "";
 637         git_header_html();
 638         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
 639                 print "<div class=\"page_nav\">\n" .
 640                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base"}, "commit") .
 641                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash_base"}, "commitdiff") .
 642                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash_base"}, "tree");
 643                 if (defined $file_name) {
 644                         print " | " . $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash_base;f=$file_name"}, "history");
 645                 }
 646                 print "<br/><br/>\n" .
 647                       "</div>\n";
 648                 print "<div>" .
 649                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base", -class => "title"}, escapeHTML($co{'title'})) .
 650                       "</div>\n";
 651         } else {
 652                 print "<div class=\"page_nav\">\n" .
 653                       "<br/><br/></div>\n" .
 654                       "<div class=\"title\">$hash</div>\n";
 655         }
 656         if (defined $file_name) {
 657                 print "<div class=\"page_path\">/$file_name</div>\n";
 658         }
 659         print "<div class=\"page_body\">\n";
 660         my $nr;
 661         while (my $line = <$fd>) {
 662                 chomp $line;
 663                 $nr++;
 664                 print "<div class=\"pre\">";
 665                 printf "<span style=\"color:#999999;\">%4i</span>", $nr;
 666                 print " " .escapeHTML($line) . "</div>\n";
 667         }
 668         close $fd || print "Reading blob failed.\n";
 669         print "</div>";
 670         git_footer_html();
 671 }
 672
 673 sub git_tree {
 674         if (!defined $hash) {
 675                 $hash = git_read_head($project);
 676                 if (defined $file_name) {
 677                         my $base = $hash_base || git_read_head($project);
 678                         $hash = git_get_hash_by_path($base, $file_name, "tree");
 679                 }
 680         }
 681         open my $fd, "-|", "$gitbin/git-ls-tree $hash" || die_error(undef, "Open git-ls-tree failed.");
 682         my (@entries) = map { chomp; $_ } <$fd>;
 683         close $fd || die_error(undef, "Reading tree failed.");
 684
 685         git_header_html();
 686         my $base_key = "";
 687         my $file_key = "";
 688         my $base = "";
 689         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
 690                 $base_key = ";hb=$hash_base";
 691                 print "<div class=\"page_nav\">\n" .
 692                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base"}, "commit") . " | " .
 693                       $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash_base"}, "commitdiff") . " | " .
 694                       $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash_base"}, "tree") .
 695                       "<br/><br/>\n" .
 696                       "</div>\n";
 697                 print "<div>\n" .
 698                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
 699                       "</div>\n";
 700         } else {
 701                 print "<div class=\"page_nav\">\n";
 702                 print "<br/><br/></div>\n";
 703                 print "<div class=\"title\">$hash</div>\n";
 704         }
 705         if (defined $file_name) {
 706                 $base = "$file_name/";
 707                 print "<div class=\"page_path\">/$file_name</div>\n";
 708         } else {
 709                 print "<div class=\"page_path\">/</div>\n";
 710         }
 711         print "<div class=\"page_body\">\n";
 712         print "<table cellspacing=\"0\">\n";
 713         foreach my $line (@entries) {
 714                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
 715                 $line =~ m/^([0-9]+)\t(.*)\t(.*)\t(.*)$/;
 716                 my $t_mode = $1;
 717                 my $t_type = $2;
 718                 my $t_hash = $3;
 719                 my $t_name = $4;
 720                 $file_key = ";f=$base$t_name";
 721                 print "<tr>\n" .
 722                       "<td class=\"pre\">" . mode_str($t_mode) . "</td>\n";
 723                 if ($t_type eq "blob") {
 724                         print "<td class=\"pre\">$t_name</td>\n";
 725                         print "<td class=\"link\">" .
 726                               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$t_hash" . $base_key . $file_key}, "blob") .
 727                               " | " . $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash_base" . $file_key}, "history") .
 728                               "</td>\n";
 729                 } elsif ($t_type eq "tree") {
 730                         print "<td class=\"pre\">" .
 731                               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$t_hash" . $base_key . $file_key}, $t_name) .
 732                               "</td>\n";
 733                 }
 734                 print "</tr>\n";
 735         }
 736         print "</table>\n" .
 737               "</div>";
 738         git_footer_html();
 739 }
 740
 741 sub git_rss {
 742         open my $fd, "-|", "$gitbin/git-rev-list --max-count=20 " . git_read_head($project) || die_error(undef, "Open failed.");
 743         my (@revlist) = map { chomp; $_ } <$fd>;
 744         close $fd || die_error(undef, "Reading rev-list failed.");
 745
 746         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
 747         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
 748               "<rss version=\"0.91\">\n";
 749         print "<channel>\n";
 750         print "<title>$project</title>\n".
 751               "<link> " . $my_url . "/$project/log</link>\n".
 752               "<description>$project log</description>\n".
 753               "<language>en</language>\n";
 754
 755         foreach my $commit (@revlist) {
 756                 my %co = git_read_commit($commit);
 757                 my %ad = date_str($co{'author_epoch'});
 758                 print "<item>\n" .
 759                       "\t<title>" . sprintf("%d %s %02d:%02d", $ad{'mday'}, $ad{'month'}, $ad{'hour'}, $ad{'minute'}) . " - " . escapeHTML($co{'title'}) . "</title>\n" .
 760                       "\t<link> " . $my_url . "?p=$project;a=commit;h=$commit</link>\n" .
 761                       "\t<description>";
 762                 my $comment = $co{'comment'};
 763                 foreach my $line (@$comment) {
 764                         print escapeHTML($line) . "<br/>\n";
 765                 }
 766                 print "\t</description>\n" .
 767                       "</item>\n";
 768         }
 769         print "</channel></rss>";
 770 }
 771
 772 sub git_log {
 773         my $head = git_read_head($project);
 774         my $limit_option = "";
 775         if (!defined $time_back) {
 776                 $limit_option = "--max-count=10";
 777         } elsif ($time_back > 0) {
 778                 my $date = time - $time_back*24*60*60;
 779                 $limit_option = "--max-age=$date";
 780         }
 781         open my $fd, "-|", "$gitbin/git-rev-list $limit_option $head" || die_error(undef, "Open failed.");
 782         my (@revlist) = map { chomp; $_ } <$fd>;
 783         close $fd || die_error(undef, "Reading rev-list failed.");
 784
 785         git_header_html();
 786         print "<div class=\"page_nav\">\n";
 787         print $cgi->a({-href => "$my_uri?p=$project;a=log"}, "last 10") . " | " .
 788               $cgi->a({-href => "$my_uri?p=$project;a=log;t=1"}, "day") . " | " .
 789               $cgi->a({-href => "$my_uri?p=$project;a=log;t=7"}, "week") . " | " .
 790               $cgi->a({-href => "$my_uri?p=$project;a=log;t=31"}, "month") . " | " .
 791               $cgi->a({-href => "$my_uri?p=$project;a=log;t=365"}, "year") . " | " .
 792               $cgi->a({-href => "$my_uri?p=$project;a=log;t=0"}, "all") . "<br/>\n";
 793         print "<br/><br/>\n" .
 794               "</div>\n";
 795
 796         if (!@revlist) {
 797                 my %co = git_read_commit($head);
 798                 print "<div class=\"page_body\"> Last change " . $co{'age_string'} . ".<br/><br/></div>\n";
 799         }
 800
 801         foreach my $commit (@revlist) {
 802                 my %co = git_read_commit($commit);
 803                 next if !%co;
 804                 my %ad = date_str($co{'author_epoch'});
 805                 print "<div>\n" .
 806                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit", -class => "title"},
 807                       "<span class=\"log_age\">" . $co{'age_string'} . "</span>" . escapeHTML($co{'title'})) . "\n" .
 808                       "</div>\n";
 809                 print "<div class=\"title_text\">\n" .
 810                       "<div class=\"log_link\">\n" .
 811                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "commit") .
 812                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$commit"}, "commitdiff") .
 813                       "<br/>\n" .
 814                       "</div>\n" .
 815                       "<i>" . escapeHTML($co{'author_name'}) .  " [" . $ad{'rfc2822'} . "]</i><br/>\n" .
 816                       "</div>\n" .
 817                       "<div class=\"log_body\">\n";
 818                 my $comment = $co{'comment'};
 819                 my $empty = 0;
 820                 foreach my $line (@$comment) {
 821                         if ($line =~ m/^(signed[ \-]off[\-]by[ :]|acked[\-]by[ \:]|cc[ :])/i) {
 822                                 next;
 823                         }
 824                         if ($line eq "") {
 825                                 if ($empty) {
 826                                         next;
 827                                 }
 828                                 $empty = 1;
 829                         } else {
 830                                 $empty = 0;
 831                         }
 832                         print escapeHTML($line) . "<br/>\n";
 833                 }
 834                 if (!$empty) {
 835                         print "<br/>\n";
 836                 }
 837                 print "</div>\n";
 838         }
 839         git_footer_html();
 840 }
 841
 842 sub git_commit {
 843         my %co = git_read_commit($hash);
 844         if (!%co) {
 845                 die_error(undef, "Unknown commit object.");
 846         }
 847         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
 848         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
 849
 850         my @difftree;
 851         if (defined $co{'parent'}) {
 852                 open my $fd, "-|", "$gitbin/git-diff-tree -r " . $co{'parent'} . " $hash" || die_error(undef, "Open failed.");
 853                 @difftree = map { chomp; $_ } <$fd>;
 854                 close $fd || die_error(undef, "Reading diff-tree failed.");
 855         } else {
 856                 # fake git-diff-tree output for initial revision
 857                 open my $fd, "-|", "$gitbin/git-ls-tree -r $hash" || die_error(undef, "Open failed.");
 858                 @difftree = map { chomp;  "+" . $_ } <$fd>;
 859                 close $fd || die_error(undef, "Reading ls-tree failed.");
 860         }
 861         git_header_html();
 862         print "<div class=\"page_nav\">\n" .
 863               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit");
 864         if (defined $co{'parent'}) {
 865                 print " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "commitdiff");
 866         }
 867         print " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash"}, "tree") . "\n" .
 868               "<br/><br/></div>\n";
 869         if (defined $co{'parent'}) {
 870                 print "<div>\n" .
 871                       $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
 872                       "</div>\n";
 873         } else {
 874                 print "<div>\n" .
 875                       $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
 876                       "</div>\n";
 877         }
 878         print "<div class=\"title_text\">\n" .
 879               "<table cellspacing=\"0\">\n";
 880         print "<tr><td>author</td><td>" . escapeHTML($co{'author'}) . "</td></tr>\n".
 881               "<tr><td></td><td> " . $ad{'rfc2822'};
 882         if ($ad{'hour_local'} < 6) {
 883                 printf(" (<span style=\"color: #cc0000;\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
 884         } else {
 885                 printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
 886         }
 887         print "</td></tr>\n";
 888         print "<tr><td>committer</td><td>" . escapeHTML($co{'committer'}) . "</td></tr>\n";
 889         print "<tr><td></td><td> " . $cd{'rfc2822'} . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
 890         print "<tr><td>commit</td><td style=\"font-family: monospace;\">$hash</td></tr>\n";
 891         print "<tr><td>tree</td><td style=\"font-family: monospace;\">" .
 892               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=" . $hash}, $co{'tree'}) . "</td></tr>\n";
 893         my $parents  = $co{'parents'};
 894         foreach my $par (@$parents) {
 895                 print "<tr><td>parent</td><td style=\"font-family: monospace;\">" .
 896                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$par"}, $par) . "</td></tr>\n";
 897         }
 898         print "</table>".
 899               "</div>\n";
 900         print "<div class=\"page_body\">\n";
 901         my $comment = $co{'comment'};
 902         my $empty = 0;
 903         my $signed = 0;
 904         foreach my $line (@$comment) {
 905                 # print only one empty line
 906                 if ($line eq "") {
 907                         if ($empty || $signed) {
 908                                 next;
 909                         }
 910                         $empty = 1;
 911                 } else {
 912                         $empty = 0;
 913                 }
 914                 if ($line =~ m/^(signed[ \-]off[\-]by[ :]|acked[\-]by[ \:]|cc[ :])/i) {
 915                         $signed = 1;
 916                         print "<span style=\"color: #888888\">" . escapeHTML($line) . "</span><br/>\n";
 917                 } else {
 918                         $signed = 0;
 919                         print escapeHTML($line) . "<br/>\n";
 920                 }
 921         }
 922         print "</div>\n";
 923         print "<div class=\"list_head\">\n";
 924         if ($#difftree > 10) {
 925                 print(($#difftree + 1) . " files changed:\n");
 926         }
 927         print "</div>\n";
 928         foreach my $line (@difftree) {
 929                 # '*100644->100644      blob    9f91a116d91926df3ba936a80f020a6ab1084d2b->bb90a0c3a91eb52020d0db0e8b4f94d30e02d596      net/ipv4/route.c'
 930                 # '+100644      blob    4a83ab6cd565d21ab0385bac6643826b83c2fcd4        arch/arm/lib/bitops.h'
 931                 # '*100664->100644      blob    b1a8e3dd5556b61dd771d32307c6ee5d7150fa43->b1a8e3dd5556b61dd771d32307c6ee5d7150fa43      show-files.c'
 932                 # '*100664->100644      blob    d08e895238bac36d8220586fdc28c27e1a7a76d3->d08e895238bac36d8220586fdc28c27e1a7a76d3      update-cache.c'
 933                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 934                 my $op = $1;
 935                 my $mode = $2;
 936                 my $type = $3;
 937                 my $id = $4;
 938                 my $file = $5;
 939                 if ($type eq "blob") {
 940                         if ($op eq "+") {
 941                                 my $mode_chng = "";
 942                                 if (S_ISREG(oct $mode)) {
 943                                         $mode_chng = sprintf(" with mode: %04o", (oct $mode) & 0777);
 944                                 }
 945                                 print "<div class=\"list\">\n" .
 946                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"},
 947                                       escapeHTML($file) . " <span style=\"color: #008000;\">[new " . file_type($mode) . $mode_chng . "]</span>") . "\n" .
 948                                       "</div>\n";
 949                                 print "<div class=\"link\">\n" .
 950                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"}, "blob") . "\n" .
 951                                       "</div>\n";
 952                         } elsif ($op eq "-") {
 953                                 print "<div class=\"list\">\n" .
 954                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"},
 955                                       escapeHTML($file) .  " <span style=\"color: #c00000;\">[deleted " . file_type($mode) . "]</span>") . "\n" .
 956                                       "</div>";
 957                                 print "<div class=\"link\">\n" .
 958                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"}, "blob") . " | " .
 959                                       $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash;f=$file"}, "history") . "\n" .
 960                                       "</div>\n";
 961                         } elsif ($op eq "*") {
 962                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
 963                                 my $from_id = $1;
 964                                 my $to_id = $2;
 965                                 $mode =~ m/^([0-7]{6})->([0-7]{6})$/;
 966                                 my $from_mode = $1;
 967                                 my $to_mode = $2;
 968                                 my $mode_chnge = "";
 969                                 if ($from_mode != $to_mode) {
 970                                         $mode_chnge = " <span style=\"color: #888888;\">[changed";
 971                                         if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
 972                                                 $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
 973                                         }
 974                                         if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
 975                                                 if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
 976                                                         $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
 977                                                 } elsif (S_ISREG($to_mode)) {
 978                                                         $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
 979                                                 }
 980                                         }
 981                                         $mode_chnge .= "]</span>\n";
 982                                 }
 983                                 print "<div class=\"list\">\n";
 984                                 if ($to_id ne $from_id) {
 985                                         print $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file"},
 986                                               escapeHTML($file) . $mode_chnge) . "\n" .
 987                                               "</div>\n";
 988                                 } else {
 989                                         print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$file"},
 990                                               escapeHTML($file) . $mode_chnge) . "\n" .
 991                                               "</div>\n";
 992                                 }
 993                                 print "<div class=\"link\">\n";
 994                                 if ($to_id ne $from_id) {
 995                                         print $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file"}, "diff") . " | ";
 996                                 }
 997                                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$file"}, "blob") . " | " .
 998                                       $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash;f=$file"}, "history") . "\n" .
 999                                       "</div>\n";
1000                         }
1001                 }
1002         }
1003         git_footer_html();
1004 }
1005
1006 sub git_blobdiff {
1007         mkdir($gittmp, 0700);
1008         git_header_html();
1009         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1010                 print "<div class=\"page_nav\">\n" .
1011                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base"}, "commit") .
1012                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash_base"}, "commitdiff") .
1013                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash_base"}, "tree");
1014                         if (defined $file_name) {
1015                                 print " | " . $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash_base;f=$file_name"}, "history");
1016                         }
1017                 print "<br/><br/>\n" .
1018                       "</div>\n";
1019                 print "<div>\n" .
1020                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
1021                       "</div>\n";
1022         } else {
1023                 print "<div class=\"page_nav\">\n" .
1024                       "<br/><br/></div>\n" .
1025                       "<div class=\"title\">$hash vs $hash_parent</div>\n";
1026         }
1027         if (defined $file_name) {
1028                 print "<div class=\"page_path\">\n" .
1029                       "/$file_name\n" .
1030                       "</div>\n";
1031         }
1032         print "<div class=\"page_body\">\n" .
1033               "<div class=\"diff_info\">blob:" .
1034               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name"}, $hash_parent) .
1035               " -> blob:" .
1036               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name"}, $hash) .
1037               "</div>\n";
1038         git_diff_html($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
1039         print "</div>";
1040         git_footer_html();
1041 }
1042
1043 sub git_commitdiff {
1044         mkdir($gittmp, 0700);
1045         my %co = git_read_commit($hash);
1046         if (!%co) {
1047                 die_error(undef, "Unknown commit object.");
1048         }
1049         open my $fd, "-|", "$gitbin/git-diff-tree -r " . $co{'parent'} . " $hash" || die_error(undef, "Open failed.");
1050         my (@difftree) = map { chomp; $_ } <$fd>;
1051         close $fd || die_error(undef, "Reading diff-tree failed.");
1052
1053         git_header_html();
1054         print "<div class=\"page_nav\">\n" .
1055               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | \n" .
1056               $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "commitdiff") . " | \n" .
1057               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" .  $co{'tree'} . ";hb=$hash"}, "tree") . "\n" .
1058               "<br/><br/></div>\n";
1059         print "<div>\n" .
1060               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
1061               "</div>\n";
1062         print "<div class=\"page_body\">\n";
1063         foreach my $line (@difftree) {
1064                 # '*100644->100644      blob    8e5f9bbdf4de94a1bc4b4da8cb06677ce0a57716->8da3a306d0c0c070d87048d14a033df02f40a154      Makefile'
1065                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
1066                 my $op = $1;
1067                 my $mode = $2;
1068                 my $type = $3;
1069                 my $id = $4;
1070                 my $file = $5;
1071                 if ($type eq "blob") {
1072                         if ($op eq "+") {
1073                                 print "<div class=\"diff_info\">" .  file_type($mode) . ":" .
1074                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"}, $id) . "(new)" .
1075                                       "</div>\n";
1076                                 git_diff_html(undef, "/dev/null", $id, "b/$file");
1077                         } elsif ($op eq "-") {
1078                                 print "<div class=\"diff_info\">" . file_type($mode) . ":" .
1079                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"}, $id) . "(deleted)" .
1080                                       "</div>\n";
1081                                 git_diff_html($id, "a/$file", undef, "/dev/null");
1082                         } elsif ($op eq "*") {
1083                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
1084                                 my $from_id = $1;
1085                                 my $to_id = $2;
1086                                 $mode =~ m/([0-7]+)->([0-7]+)/;
1087                                 my $from_mode = $1;
1088                                 my $to_mode = $2;
1089                                 if ($from_id ne $to_id) {
1090                                         print "<div class=\"diff_info\">" .
1091                                               file_type($from_mode) . ":" . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$from_id;hb=$hash;f=$file"}, $from_id) .
1092                                               " -> " .
1093                                               file_type($to_mode) . ":" . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$file"}, $to_id);
1094                                         print "</div>\n";
1095                                         git_diff_html($from_id, "a/$file",  $to_id, "b/$file");
1096                                 }
1097                         }
1098                 }
1099         }
1100         print "<br/>\n" .
1101               "</div>";
1102         git_footer_html();
1103 }
1104
1105 sub git_history {
1106         if (!defined $hash) {
1107                 $hash = git_read_head($project);
1108         }
1109         my %co = git_read_commit($hash);
1110         if (!%co) {
1111                 die_error(undef, "Unknown commit object.");
1112         }
1113         git_header_html();
1114         print "<div class=\"page_nav\">\n" .
1115               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | " .
1116               $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "commitdiff") . " | " .
1117               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash"}, "tree") .
1118               "<br/><br/>\n" .
1119               "</div>\n";
1120         print "<div>\n" .
1121               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
1122               "</div>\n";
1123         print "<div class=\"page_path\">\n" .
1124               "/$file_name<br/>\n";
1125         print "</div>\n";
1126         open my $fd, "-|", "$gitbin/git-rev-list $hash | $gitbin/git-diff-tree -r --stdin $file_name";
1127         my $commit;
1128         while (my $line = <$fd>) {
1129                 if ($line =~ m/^([0-9a-fA-F]{40}) /){
1130                         $commit = $1;
1131                         next;
1132                 }
1133                 if ($line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/ && (defined $commit)) {
1134                         my $type = $3;
1135                         my $file = $5;
1136                         if ($file ne $file_name || $type ne "blob") {
1137                                 next;
1138                         }
1139                         my %co = git_read_commit($commit);
1140                         if (!%co) {
1141                                 next;
1142                         }
1143                         print "<div class=\"list\">\n" .
1144                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"},
1145                               "<span class=\"log_age\">" . $co{'age_string'} . "</span>" . escapeHTML($co{'title'})) . "\n" .
1146                               "</div>\n";
1147                         print "<div class=\"link\">\n" .
1148                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "commit") .
1149                               " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" .  $co{'tree'} . ";hb=$commit"}, "tree") .
1150                               " | " . $cgi->a({-href => "$my_uri?p=$project;a=blob;hb=$commit;f=" . $file}, "blob");
1151                         my $blob = git_get_hash_by_path($hash, $file_name);
1152                         my $blob_parent = git_get_hash_by_path($commit, $file_name);
1153                         if (defined $blob && defined $blob_parent && $blob ne $blob_parent) {
1154                                 print " | " . $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$blob;hp=$blob_parent;hb=$commit;f=" . $file}, "diff");
1155                         }
1156                         print "<br/>\n" .
1157                               "</div>\n";
1158                         undef $commit;
1159                 }
1160         }
1161         close $fd;
1162         git_footer_html();
1163 }