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 =           "125";
  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 =         "/git";
  33
  34 # source of projects list
  35 #my $projects_list = $projectroot;
  36 my $projects_list = "index/index.txt";
  37
  38 # input validation and dispatch
  39 my $action = $cgi->param('a');
  40 if (defined $action) {
  41         if ($action =~ m/[^0-9a-zA-Z\.\-]+/) {
  42                 undef $action;
  43                 die_error(undef, "Invalid action parameter.");
  44         }
  45         if ($action eq "git-logo.png") {
  46                 git_logo();
  47                 exit;
  48         }
  49 } else {
  50         $action = "log";
  51 }
  52
  53 my $project = $cgi->param('p');
  54 if (defined $project) {
  55         if ($project =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
  56                 undef $project;
  57                 die_error(undef, "Non-canonical project parameter.");
  58         }
  59         if ($project =~ m/[^a-zA-Z0-9_\.\/\-\+\#\~]/) {
  60                 undef $project;
  61                 die_error(undef, "Invalid character in project parameter.");
  62         }
  63         if (!(-d "$projectroot/$project")) {
  64                 undef $project;
  65                 die_error(undef, "No such directory.");
  66         }
  67         if (!(-e "$projectroot/$project/HEAD")) {
  68                 undef $project;
  69                 die_error(undef, "No such project.");
  70         }
  71         $rss_link = "<link rel=\"alternate\" title=\"$project log\" href=\"$my_uri?p=$project;a=rss\" type=\"application/rss+xml\"/>";
  72         $ENV{'SHA1_FILE_DIRECTORY'} = "$projectroot/$project/objects";
  73 } else {
  74         git_project_list($projects_list);
  75         exit;
  76 }
  77
  78 my $file_name = $cgi->param('f');
  79 if (defined $file_name) {
  80         if ($file_name =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
  81                 undef $file_name;
  82                 die_error(undef, "Non-canonical file parameter.");
  83         }
  84         if ($file_name =~ m/[^a-zA-Z0-9_\.\/\-\+\#\~\:\!]/) {
  85                 undef $file_name;
  86                 die_error(undef, "Invalid character in file parameter.");
  87         }
  88 }
  89
  90 my $hash = $cgi->param('h');
  91 if (defined $hash && !($hash =~ m/^[0-9a-fA-F]{40}$/)) {
  92         undef $hash;
  93         die_error(undef, "Invalid hash parameter.");
  94 }
  95
  96 my $hash_parent = $cgi->param('hp');
  97 if (defined $hash_parent && !($hash_parent =~ m/^[0-9a-fA-F]{40}$/)) {
  98         undef $hash_parent;
  99         die_error(undef, "Invalid hash_parent parameter.");
 100 }
 101
 102 my $hash_base = $cgi->param('hb');
 103 if (defined $hash_base && !($hash_base =~ m/^[0-9a-fA-F]{40}$/)) {
 104         undef $hash_base;
 105         die_error(undef, "Invalid parent hash parameter.");
 106 }
 107
 108 my $time_back = $cgi->param('t');
 109 if (defined $time_back) {
 110         if ($time_back =~ m/^[^0-9]+$/) {
 111                 undef $time_back;
 112                 die_error(undef, "Invalid time parameter.");
 113         }
 114 }
 115
 116 if ($action eq "blob") {
 117         git_blob();
 118         exit;
 119 } elsif ($action eq "tree") {
 120         git_tree();
 121         exit;
 122 } elsif ($action eq "rss") {
 123         git_rss();
 124         exit;
 125 } elsif ($action eq "commit") {
 126         git_commit();
 127         exit;
 128 } elsif ($action eq "log") {
 129         git_log();
 130         exit;
 131 } elsif ($action eq "blobdiff") {
 132         git_blobdiff();
 133         exit;
 134 } elsif ($action eq "commitdiff") {
 135         git_commitdiff();
 136         exit;
 137 } elsif ($action eq "history") {
 138         git_history();
 139         exit;
 140 } else {
 141         undef $action;
 142         die_error(undef, "Unknown action.");
 143         exit;
 144 }
 145
 146 sub git_header_html {
 147         my $status = shift || "200 OK";
 148
 149         my $title = "git";
 150         if (defined $project) {
 151                 $title .= " - $project";
 152                 if (defined $action) {
 153                         $title .= "/$action";
 154                 }
 155         }
 156         print $cgi->header(-type=>'text/html',  -charset => 'utf-8', -status=> $status);
 157         print <<EOF;
 158 <?xml version="1.0" encoding="utf-8"?>
 159 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 160 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
 161 <!-- git web interface v$version, (C) 2005, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke <ch\@gierke.de> -->
 162 <head>
 163 <title>$title</title>
 164 $rss_link
 165 <style type="text/css">
 166 body { font-family: sans-serif; font-size: 12px; margin:0px; }
 167 a { color:#0000cc; }
 168 a:hover { color:#880000; }
 169 a:visited { color:#880000; }
 170 a:active { color:#880000; }
 171 div.page_header {
 172         margin:15px 15px 0px; height:25px; padding:8px;
 173         font-size:18px; font-weight:bold; background-color:#d9d8d1;
 174 }
 175 div.page_header a:visited { color:#0000cc; }
 176 div.page_header a:hover { color:#880000; }
 177 div.page_nav { margin:0px 15px; padding:8px; border:solid #d9d8d1; border-width:0px 1px; }
 178 div.page_nav a:visited { color:#0000cc; }
 179 div.page_path { font-weight:bold; margin:0px 15px; padding:8px; border:solid #d9d8d1; border-width:0px 1px 1px}
 180 div.page_footer { margin:0px 15px 15px; height:17px; padding:4px; padding-left:8px; background-color: #d9d8d1; }
 181 div.page_footer_text { float:left; color:#555555; font-style:italic; }
 182 div.page_body { margin:0px 15px; padding:8px; border:solid #d9d8d1; border-width:0px 1px; }
 183 div.title, a.title {
 184         display:block; margin:0px 15px; padding:6px 8px;
 185         font-weight:bold; background-color:#edece6; text-decoration:none; color:#000000;
 186 }
 187 a.title:hover { background-color: #d9d8d1; }
 188 div.title_text { margin:0px 15px; padding:6px 8px; border: solid #d9d8d1; border-width:0px 1px 1px; }
 189 div.log_body { margin:0px 15px; padding:8px; padding-left:150px; border:solid #d9d8d1; border-width:0px 1px; }
 190 span.log_age { position:relative; float:left; width:142px; font-style:italic; }
 191 div.log_link { font-size:10px; font-family:sans-serif; font-style:normal; position:relative; float:left; width:142px; }
 192 div.list {
 193         display:block; margin:0px 15px; padding:4px 6px 2px; border:solid #d9d8d1; border-width:0px 1px;
 194         font-weight:bold;
 195 }
 196 div.list_head {
 197         display:block; margin:0px 15px; padding:6px 6px 4px; border:solid #d9d8d1; border-width:0px 1px 1px;
 198         font-style:italic;
 199 }
 200 div.list a { text-decoration:none; color:#000000; }
 201 div.list a:hover { color:#880000; }
 202 div.link {
 203         margin:0px 15px; padding:4px 6px 6px; border:solid #d9d8d1; border-width:0px 1px 1px;
 204         font-family:sans-serif; font-size:10px;
 205 }
 206 td { padding:5px 15px 0px 0px; font-size:12px; }
 207 th { padding-right:10px; font-size:12px; text-align:left; }
 208 td.link { font-family:sans-serif; font-size:10px; }
 209 td.pre { font-family:monospace; font-size:12px; white-space:pre; padding:2px 15px 0px 0px; }
 210 span.diff_info { color:#000099; background-color:#edece6; font-style:italic; }
 211 a.rss_logo { float:right; padding:3px 0px; width:35px; line-height:10px;
 212         border:1px solid; border-color:#fcc7a5 #7d3302 #3e1a01 #ff954e;
 213         color:#ffffff; background-color:#ff6600;
 214         font-weight:bold; font-family:sans-serif; font-size:10px;
 215         text-align:center; text-decoration:none;
 216 }
 217 a.rss_logo:hover { background-color:#ee5500; }
 218 </style>
 219 </head>
 220 <body>
 221 EOF
 222         print "<div class=\"page_header\">\n" .
 223               "<a href=\"http://kernel.org/pub/software/scm/cogito\">" .
 224               "<img src=\"$my_uri?a=git-logo.png\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/></a>";
 225         print $cgi->a({-href => $home_link}, "projects") . " / ";
 226         if (defined $project) {
 227                 print $cgi->a({-href => "$my_uri?p=$project;a=log"}, escapeHTML($project));
 228                 if (defined $action) {
 229                         print " / $action";
 230                 }
 231         }
 232         print "</div>\n";
 233 }
 234
 235 sub git_footer_html {
 236         print "<div class=\"page_footer\">\n";
 237         if (defined $project) {
 238                 my $descr = git_read_description($project);
 239                 if (defined $descr) {
 240                         print "<div class=\"page_footer_text\">" . escapeHTML($descr) . "</div>\n";
 241                 }
 242                 print $cgi->a({-href => "$my_uri?p=$project;a=rss", -class => "rss_logo"}, "RSS") . "\n";
 243         }
 244         print "</div>\n" .
 245               "</body>\n" .
 246               "</html>";
 247 }
 248
 249 sub die_error {
 250         my $status = shift || "403 Forbidden";
 251         my $error = shift || "Malformed query, file missing or permission denied";
 252
 253         git_header_html($status);
 254         print "<div class=\"page_body\">\n" .
 255               "<br/><br/>\n";
 256         print "$status - $error\n";
 257         print "<br/></div>\n";
 258         git_footer_html();
 259         exit;
 260 }
 261
 262 sub git_get_type {
 263         my $hash = shift;
 264
 265         open my $fd, "-|", "$gitbin/git-cat-file -t $hash" || return;
 266         my $type = <$fd>;
 267         close $fd;
 268         chomp $type;
 269         return $type;
 270 }
 271
 272 sub git_read_head {
 273         my $path = shift;
 274
 275         open my $fd, "$projectroot/$path/HEAD" || return undef;
 276         my $head = <$fd>;
 277         close $fd;
 278         chomp $head;
 279         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 280                 return $head;
 281         } else {
 282                 return undef;
 283         }
 284 }
 285
 286 sub git_read_description {
 287         my $path = shift;
 288
 289         open my $fd, "$projectroot/$path/description" || return undef;
 290         my $descr = <$fd>;
 291         close $fd;
 292         chomp $descr;
 293         return $descr;
 294 }
 295
 296 sub git_read_commit {
 297         my $commit = shift;
 298         my %co;
 299         my @parents;
 300
 301         open my $fd, "-|", "$gitbin/git-cat-file commit $commit" || return;
 302         while (my $line = <$fd>) {
 303                 last if $line eq "\n";
 304                 chomp $line;
 305                 if ($line =~ m/^tree (.*)$/) {
 306                         $co{'tree'} = $1;
 307                 } elsif ($line =~ m/^parent (.*)$/) {
 308                         push @parents, $1;
 309                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 310                         $co{'author'} = $1;
 311                         $co{'author_epoch'} = $2;
 312                         $co{'author_tz'} = $3;
 313                         $co{'author_name'} = $co{'author'};
 314                         $co{'author_name'} =~ s/ <.*//;
 315                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 316                         $co{'committer'} = $1;
 317                         $co{'committer_epoch'} = $2;
 318                         $co{'committer_tz'} = $3;
 319                         $co{'committer_name'} = $co{'committer'};
 320                         $co{'committer_name'} =~ s/ <.*//;
 321                 }
 322         }
 323         $co{'parents'} = \@parents;
 324         $co{'parent'} = $parents[0];
 325         my (@comment) = map { chomp; $_ } <$fd>;
 326         $co{'comment'} = \@comment;
 327         $comment[0] =~ m/^(.{0,60}[^ ]*)/;
 328         $co{'title'} = $1;
 329         if ($comment[0] ne $co{'title'}) {
 330                 $co{'title'} .= " [...]";
 331         }
 332         close $fd || return;
 333         if (!defined $co{'tree'}) {
 334                 return undef
 335         };
 336
 337         my $age = time - $co{'committer_epoch'};
 338         $co{'age'} = $age;
 339         if ($age > 60*60*24*365*2) {
 340                 $co{'age_string'} = (int $age/60/60/24/365);
 341                 $co{'age_string'} .= " years ago";
 342         } elsif ($age > 60*60*24*365/12*2) {
 343                 $co{'age_string'} = int $age/60/60/24/365/12;
 344                 $co{'age_string'} .= " months ago";
 345         } elsif ($age > 60*60*24*7*2) {
 346                 $co{'age_string'} = int $age/60/60/24/7;
 347                 $co{'age_string'} .= " weeks ago";
 348         } elsif ($age > 60*60*24*2) {
 349                 $co{'age_string'} = int $age/60/60/24;
 350                 $co{'age_string'} .= " days ago";
 351         } elsif ($age > 60*60*2) {
 352                 $co{'age_string'} = int $age/60/60;
 353                 $co{'age_string'} .= " hours ago";
 354         } elsif ($age > 60*2) {
 355                 $co{'age_string'} = int $age/60;
 356                 $co{'age_string'} .= " minutes ago";
 357         } elsif ($age > 2) {
 358                 $co{'age_string'} = int $age;
 359                 $co{'age_string'} .= " seconds ago";
 360         } else {
 361                 $co{'age_string'} .= " right now";
 362         }
 363         return %co;
 364 }
 365
 366 sub git_diff_html {
 367         my $from = shift;
 368         my $from_name = shift;
 369         my $to = shift;
 370         my $to_name = shift;
 371
 372         my $from_tmp = "/dev/null";
 373         my $to_tmp = "/dev/null";
 374         my $pid = $$;
 375
 376         # create tmp from-file
 377         if (defined $from) {
 378                 $from_tmp = "$gittmp/gitweb_" . $$ . "_from";
 379                 open my $fd2, "> $from_tmp";
 380                 open my $fd, "-|", "$gitbin/git-cat-file blob $from";
 381                 my @file = <$fd>;
 382                 print $fd2 @file;
 383                 close $fd2;
 384                 close $fd;
 385         }
 386
 387         # create tmp to-file
 388         if (defined $to) {
 389                 $to_tmp = "$gittmp/gitweb_" . $$ . "_to";
 390                 open my $fd2, "> $to_tmp";
 391                 open my $fd, "-|", "$gitbin/git-cat-file blob $to";
 392                 my @file = <$fd>;
 393                 print $fd2 @file;
 394                 close $fd2;
 395                 close $fd;
 396         }
 397
 398         open my $fd, "-|", "/usr/bin/diff -u -p -L $from_name -L $to_name $from_tmp $to_tmp";
 399         while (my $line = <$fd>) {
 400                 my $char = substr($line,0,1);
 401                 # skip errors
 402                 next if $char eq '\\';
 403                 # color the diff
 404                 print '<span style="color: #008800;">' if $char eq '+';
 405                 print '<span style="color: #CC0000;">' if $char eq '-';
 406                 print '<span style="color: #990099;">' if $char eq '@';
 407                 print escapeHTML($line);
 408                 print '</span>' if $char eq '+' or $char eq '-' or $char eq '@';
 409         }
 410         close $fd;
 411
 412         if (defined $from) {
 413                 unlink($from_tmp);
 414         }
 415         if (defined $to) {
 416                 unlink($to_tmp);
 417         }
 418 }
 419
 420 sub mode_str {
 421         my $mode = oct shift;
 422
 423         if (S_ISDIR($mode & S_IFMT)) {
 424                 return 'drwxr-xr-x';
 425         } elsif (S_ISLNK($mode)) {
 426                 return 'lrwxrwxrwx';
 427         } elsif (S_ISREG($mode)) {
 428                 # git cares only about the executable bit
 429                 if ($mode & S_IXUSR) {
 430                         return '-rwxr-xr-x';
 431                 } else {
 432                         return '-rw-r--r--';
 433                 };
 434         } else {
 435                 return '----------';
 436         }
 437 }
 438
 439 sub file_type {
 440         my $mode = oct shift;
 441
 442         if (S_ISDIR($mode & S_IFMT)) {
 443                 return "directory";
 444         } elsif (S_ISLNK($mode)) {
 445                 return "symlink";
 446         } elsif (S_ISREG($mode)) {
 447                 return "file";
 448         } else {
 449                 return "unknown";
 450         }
 451 }
 452
 453 sub date_str {
 454         my $epoch = shift;
 455         my $tz = shift || "-0000";
 456
 457         my %date;
 458         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 459         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 460         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 461         $date{'hour'} = $hour;
 462         $date{'minute'} = $min;
 463         $date{'mday'} = $mday;
 464         $date{'day'} = $days[$wday];
 465         $date{'month'} = $months[$mon];
 466         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 467         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 468
 469         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 470         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 471         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 472         $date{'hour_local'} = $hour;
 473         $date{'minute_local'} = $min;
 474         $date{'tz_local'} = $tz;
 475         return %date;
 476 }
 477
 478 # git-logo (cached in browser for one day)
 479 sub git_logo {
 480         print $cgi->header(-type => 'image/png', -expires => '+1d');
 481         # cat git-logo.png | hexdump -e '16/1 " %02x"  "\n"' | sed 's/ /\\x/g'
 482         print   "\x89\x50\x4e\x47\x0d\x0a\x1a\x0a\x00\x00\x00\x0d\x49\x48\x44\x52" .
 483                 "\x00\x00\x00\x48\x00\x00\x00\x1b\x04\x03\x00\x00\x00\x2d\xd9\xd4" .
 484                 "\x2d\x00\x00\x00\x18\x50\x4c\x54\x45\xff\xff\xff\x60\x60\x5d\xb0" .
 485                 "\xaf\xaa\x00\x80\x00\xce\xcd\xc7\xc0\x00\x00\xe8\xe8\xe6\xf7\xf7" .
 486                 "\xf6\x95\x0c\xa7\x47\x00\x00\x00\x73\x49\x44\x41\x54\x28\xcf\x63" .
 487                 "\x48\x67\x20\x04\x4a\x5c\x18\x0a\x08\x2a\x62\x53\x61\x20\x02\x08" .
 488                 "\x0d\x69\x45\xac\xa1\xa1\x01\x30\x0c\x93\x60\x36\x26\x52\x91\xb1" .
 489                 "\x01\x11\xd6\xe1\x55\x64\x6c\x6c\xcc\x6c\x6c\x0c\xa2\x0c\x70\x2a" .
 490                 "\x62\x06\x2a\xc1\x62\x1d\xb3\x01\x02\x53\xa4\x08\xe8\x00\x03\x18" .
 491                 "\x26\x56\x11\xd4\xe1\x20\x97\x1b\xe0\xb4\x0e\x35\x24\x71\x29\x82" .
 492                 "\x99\x30\xb8\x93\x0a\x11\xb9\x45\x88\xc1\x8d\xa0\xa2\x44\x21\x06" .
 493                 "\x27\x41\x82\x40\x85\xc1\x45\x89\x20\x70\x01\x00\xa4\x3d\x21\xc5" .
 494                 "\x12\x1c\x9a\xfe\x00\x00\x00\x00\x49\x45\x4e\x44\xae\x42\x60\x82";
 495 }
 496
 497 sub git_project_list {
 498         my $project_list = shift;
 499         my @list;
 500
 501         if (-d $project_list) {
 502                 # search in directory
 503                 my $dir = $project_list;
 504                 opendir my $dh, $dir || return undef;
 505                 while (my $dir = readdir($dh)) {
 506                         if (-e "$projectroot/$dir/HEAD") {
 507                                 push @list, $dir;
 508                         }
 509                 }
 510                 closedir($dh);
 511         } elsif (-e $project_list) {
 512                 # read from file
 513                 open my $fd , $project_list || return undef;
 514                 while (my $line = <$fd>) {
 515                         chomp $line;
 516                         if (-e "$projectroot/$line/HEAD") {
 517                                 push @list, $line;
 518                         }
 519                 }
 520                 close $fd;
 521         }
 522
 523         if (!@list) {
 524                 die_error(undef, "No project found.");
 525         }
 526         @list = sort @list;
 527
 528         git_header_html();
 529         print "<div class=\"page_body\"><br/>\n";
 530         print "<table cellspacing=\"0\">\n";
 531         print "<tr>\n" .
 532               "<th>Project</th>\n" .
 533               "<th>Description</th>\n" .
 534               "<th>Owner</th>\n" .
 535               "<th>last change</th>\n" .
 536               "</tr>\n";
 537         foreach my $proj (@list) {
 538                 my $head = git_read_head($proj);
 539                 if (!defined $head) {
 540                         next;
 541                 }
 542                 $ENV{'SHA1_FILE_DIRECTORY'} = "$projectroot/$proj/objects";
 543                 my %co = git_read_commit($head);
 544                 if (!%co) {
 545                         next;
 546                 }
 547                 my $descr = git_read_description($proj) || "";
 548                 my $owner = "";
 549                 my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat("$projectroot/$proj");
 550                 my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 551                 if (defined $gcos) {
 552                         $owner = $gcos;
 553                         $owner =~ s/[,;].*$//;
 554                 }
 555                 print "<tr>\n" .
 556                       "<td>" . $cgi->a({-href => "$my_uri?p=$proj;a=log"}, escapeHTML($proj)) . "</td>\n" .
 557                       "<td>$descr</td>\n" .
 558                       "<td><i>$owner</i></td>\n";
 559                 if ($co{'age'} < 60*60*2) {
 560                         print "<td><span style =\"color: #009900;\"><b><i>" . $co{'age_string'} . "</i></b></span></td>\n";
 561                 } elsif ($co{'age'} < 60*60*24*2) {
 562                         print "<td><span style =\"color: #009900;\"><i>" . $co{'age_string'} . "</i></span></td>\n";
 563                 } else {
 564                         print "<td><i>" . $co{'age_string'} . "</i></td>\n";
 565                 }
 566                 print "</tr>\n";
 567         }
 568         print "</table>\n" .
 569               "<br/>\n" .
 570               "</div>\n";
 571         git_footer_html();
 572 }
 573
 574 sub git_get_hash_by_path {
 575         my $base = shift;
 576         my $path = shift;
 577
 578         my $tree = $base;
 579         my @parts = split '/', $path;
 580         while (my $part = shift @parts) {
 581                 open my $fd, "-|", "$gitbin/git-ls-tree $tree" || die_error(undef, "Open git-ls-tree failed.");
 582                 my (@entries) = map { chomp; $_ } <$fd>;
 583                 close $fd || return undef;
 584                 foreach my $line (@entries) {
 585                         #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
 586                         $line =~ m/^([0-9]+)\t(.*)\t(.*)\t(.*)$/;
 587                         my $t_mode = $1;
 588                         my $t_type = $2;
 589                         my $t_hash = $3;
 590                         my $t_name = $4;
 591                         if ($t_name eq $part) {
 592                                 if (!(@parts)) {
 593                                         return $t_hash;
 594                                 }
 595                                 if ($t_type eq "tree") {
 596                                         $tree = $t_hash;
 597                                 }
 598                                 last;
 599                         }
 600                 }
 601         }
 602 }
 603
 604 sub git_blob {
 605         if (!defined $hash && defined $file_name) {
 606                 my $base = $hash_base || git_read_head($project);
 607                 $hash = git_get_hash_by_path($base, $file_name, "blob");
 608         }
 609         open my $fd, "-|", "$gitbin/git-cat-file blob $hash" || die_error(undef, "Open failed.");
 610         my $base = $file_name || "";
 611         git_header_html();
 612         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
 613                 print "<div class=\"page_nav\">\n" .
 614                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base"}, "commit") .
 615                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash_base"}, "commitdiff") .
 616                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash_base"}, "tree");
 617                 if (defined $file_name) {
 618                         print " | " . $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash_base;f=$file_name"}, "history");
 619                 }
 620                 print "<br/><br/>\n" .
 621                       "</div>\n";
 622                 print "<div>\n" .
 623                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base", -class => "title"}, escapeHTML($co{'title'})) . "\n";
 624         } else {
 625                 print "<div class=\"page_nav\">\n" .
 626                       "<br/><br/></div>\n" .
 627                       "<div class=\"title\">$hash</div>\n";
 628         }
 629         if (defined $file_name) {
 630                 print "<div class=\"page_path\">/$file_name</div>\n";
 631         }
 632         print "<div class=\"page_body\"><pre>\n";
 633         my $nr;
 634         while (my $line = <$fd>) {
 635                 $nr++;
 636                 printf "<span style =\"color: #999999;\">%4i\t</span>%s", $nr, escapeHTML($line);;
 637         }
 638         close $fd || print "Reading blob failed.\n";
 639         print "</pre>\n";
 640         print "</div>";
 641         git_footer_html();
 642 }
 643
 644 sub git_tree {
 645         if (!defined $hash) {
 646                 $hash = git_read_head($project);
 647                 if (defined $file_name) {
 648                         my $base = $hash_base || git_read_head($project);
 649                         $hash = git_get_hash_by_path($base, $file_name, "tree");
 650                 }
 651         }
 652         open my $fd, "-|", "$gitbin/git-ls-tree $hash" || die_error(undef, "Open git-ls-tree failed.");
 653         my (@entries) = map { chomp; $_ } <$fd>;
 654         close $fd || die_error(undef, "Reading tree failed.");
 655
 656         git_header_html();
 657         my $base_key = "";
 658         my $file_key = "";
 659         my $base = "";
 660         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
 661                 $base_key = ";hb=$hash_base";
 662                 print "<div class=\"page_nav\">\n" .
 663                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base"}, "commit") . " | " .
 664                       $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash_base"}, "commitdiff") . " | " .
 665                       $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash_base"}, "tree") .
 666                       "<br/><br/>\n" .
 667                       "</div>\n";
 668                 print "<div>\n" .
 669                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
 670                       "</div>\n";
 671         } else {
 672                 print "<div class=\"page_nav\">\n";
 673                 print "<br/><br/></div>\n";
 674                 print "<div class=\"title\">$hash</div>\n";
 675         }
 676         if (defined $file_name) {
 677                 $base = "$file_name/";
 678                 print "<div class=\"page_path\">/$file_name</div>\n";
 679         } else {
 680                 print "<div class=\"page_path\">/</div>\n";
 681         }
 682         print "<div class=\"page_body\">\n";
 683         print "<table cellspacing=\"0\">\n";
 684         foreach my $line (@entries) {
 685                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
 686                 $line =~ m/^([0-9]+)\t(.*)\t(.*)\t(.*)$/;
 687                 my $t_mode = $1;
 688                 my $t_type = $2;
 689                 my $t_hash = $3;
 690                 my $t_name = $4;
 691                 $file_key = ";f=$base$t_name";
 692                 print "<tr>\n" .
 693                       "<td class=\"pre\">" . mode_str($t_mode) . "</td>\n";
 694                 if ($t_type eq "blob") {
 695                         print "<td class=\"pre\">$t_name</td>\n";
 696                         print "<td class=\"link\">" .
 697                               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$t_hash" . $base_key . $file_key}, "file") .
 698                               " | " . $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash_base" . $file_key}, "history") .
 699                               "</td>\n";
 700                 } elsif ($t_type eq "tree") {
 701                         print "<td class=\"pre\">" .
 702                               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$t_hash" . $base_key . $file_key}, $t_name) .
 703                               "</td>\n";
 704                 }
 705                 print "</tr>\n";
 706         }
 707         print "</table>\n" .
 708               "</div>";
 709         git_footer_html();
 710 }
 711
 712 sub git_rss {
 713         open my $fd, "-|", "$gitbin/git-rev-list --max-count=20 " . git_read_head($project) || die_error(undef, "Open failed.");
 714         my (@revlist) = map { chomp; $_ } <$fd>;
 715         close $fd || die_error(undef, "Reading rev-list failed.");
 716
 717         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
 718         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
 719               "<rss version=\"0.91\">\n";
 720         print "<channel>\n";
 721         print "<title>$project</title>\n".
 722               "<link> " . $my_url . "/$project/log</link>\n".
 723               "<description>$project log</description>\n".
 724               "<language>en</language>\n";
 725
 726         foreach my $commit (@revlist) {
 727                 my %co = git_read_commit($commit);
 728                 my %ad = date_str($co{'author_epoch'});
 729                 print "<item>\n" .
 730                       "\t<title>" . sprintf("%d %s %02d:%02d", $ad{'mday'}, $ad{'month'}, $ad{'hour'}, $ad{'minute'}) . " - " . escapeHTML($co{'title'}) . "</title>\n" .
 731                       "\t<link> " . $my_url . "?p=$project;a=commit;h=$commit</link>\n" .
 732                       "\t<description>";
 733                 my $comment = $co{'comment'};
 734                 foreach my $line (@$comment) {
 735                         print escapeHTML($line) . "<br/>\n";
 736                 }
 737                 print "\t</description>\n" .
 738                       "</item>\n";
 739         }
 740         print "</channel></rss>";
 741 }
 742
 743 sub git_log {
 744         my $head = git_read_head($project);
 745         my $limit_option = "";
 746         if (!defined $time_back) {
 747                 $limit_option = "--max-count=10";
 748         } elsif ($time_back > 0) {
 749                 my $date = time - $time_back*24*60*60;
 750                 $limit_option = "--max-age=$date";
 751         }
 752         open my $fd, "-|", "$gitbin/git-rev-list $limit_option $head" || die_error(undef, "Open failed.");
 753         my (@revlist) = map { chomp; $_ } <$fd>;
 754         close $fd || die_error(undef, "Reading rev-list failed.");
 755
 756         git_header_html();
 757         print "<div class=\"page_nav\">\n";
 758         print $cgi->a({-href => "$my_uri?p=$project;a=log"}, "last 10") . " | " .
 759               $cgi->a({-href => "$my_uri?p=$project;a=log;t=1"}, "day") . " | " .
 760               $cgi->a({-href => "$my_uri?p=$project;a=log;t=7"}, "week") . " | " .
 761               $cgi->a({-href => "$my_uri?p=$project;a=log;t=31"}, "month") . " | " .
 762               $cgi->a({-href => "$my_uri?p=$project;a=log;t=365"}, "year") . " | " .
 763               $cgi->a({-href => "$my_uri?p=$project;a=log;t=0"}, "all") . "<br/>\n";
 764         print "<br/><br/>\n" .
 765               "</div>\n";
 766
 767         if (!@revlist) {
 768                 my %co = git_read_commit($head);
 769                 print "<div class=\"page_body\"> Last change " . $co{'age_string'} . ".<br/><br/></div>\n";
 770         }
 771
 772         foreach my $commit (@revlist) {
 773                 my %co = git_read_commit($commit);
 774                 next if !%co;
 775                 my %ad = date_str($co{'author_epoch'});
 776                 print "<div>\n" .
 777                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit", -class => "title"},
 778                       "<span class=\"log_age\">" . $co{'age_string'} . "</span>" . escapeHTML($co{'title'})) . "\n" .
 779                       "</div>\n";
 780                 print "<div class=\"title_text\">\n" .
 781                       "<div class=\"log_link\">\n" .
 782                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "commit") .
 783                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$commit"}, "commitdiff") .
 784                       "<br/>\n" .
 785                       "</div>\n" .
 786                       "<i>" . escapeHTML($co{'author_name'}) .  " [" . $ad{'rfc2822'} . "]</i><br/>\n" .
 787                       "</div>\n" .
 788                       "<div class=\"log_body\">\n";
 789                 my $comment = $co{'comment'};
 790                 my $empty = 0;
 791                 foreach my $line (@$comment) {
 792                         if ($line =~ m/^(signed[ \-]off[\-]by[ :]|acked[\-]by[ \:]|cc[ :])/i) {
 793                                 next;
 794                         }
 795                         if ($line eq "") {
 796                                 if ($empty) {
 797                                         next;
 798                                 }
 799                                 $empty = 1;
 800                         } else {
 801                                 $empty = 0;
 802                         }
 803                         print escapeHTML($line) . "<br/>\n";
 804                 }
 805                 if (!$empty) {
 806                         print "<br/>\n";
 807                 }
 808                 print "</div>\n";
 809         }
 810         git_footer_html();
 811 }
 812
 813 sub git_commit {
 814         my %co = git_read_commit($hash);
 815         if (!%co) {
 816                 die_error(undef, "Unknown commit object.");
 817         }
 818         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
 819         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
 820
 821         my @difftree;
 822         if (defined $co{'parent'}) {
 823                 open my $fd, "-|", "$gitbin/git-diff-tree -r " . $co{'parent'} . " $hash" || die_error(undef, "Open failed.");
 824                 @difftree = map { chomp; $_ } <$fd>;
 825                 close $fd || die_error(undef, "Reading diff-tree failed.");
 826         } else {
 827                 # fake git-diff-tree output for initial revision
 828                 open my $fd, "-|", "$gitbin/git-ls-tree -r $hash" || die_error(undef, "Open failed.");
 829                 @difftree = map { chomp;  "+" . $_ } <$fd>;
 830                 close $fd || die_error(undef, "Reading ls-tree failed.");
 831         }
 832         git_header_html();
 833         print "<div class=\"page_nav\">\n" .
 834               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit");
 835         if (defined $co{'parent'}) {
 836                 print " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "commitdiff");
 837         }
 838         print " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash"}, "tree") . "\n" .
 839               "<br/><br/></div>\n";
 840         if (defined $co{'parent'}) {
 841                 print "<div>\n" .
 842                       $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
 843                       "</div>\n";
 844         } else {
 845                 print "<div>\n" .
 846                       $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
 847                       "</div>\n";
 848         }
 849         print "<div class=\"title_text\">\n" .
 850               "<table cellspacing=\"0\">\n";
 851         print "<tr><td>author</td><td>" . escapeHTML($co{'author'}) . "</td></tr>\n".
 852               "<tr><td></td><td> " . $ad{'rfc2822'};
 853         if ($ad{'hour_local'} < 6) {
 854                 printf(" (<span style=\"color: #cc0000;\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
 855         } else {
 856                 printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
 857         }
 858         print "</td></tr>\n";
 859         print "<tr><td>committer</td><td>" . escapeHTML($co{'committer'}) . "</td></tr>\n";
 860         print "<tr><td></td><td> " . $cd{'rfc2822'} . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
 861         print "<tr><td>commit</td><td style=\"font-family: monospace;\">$hash</td></tr>\n";
 862         print "<tr><td>tree</td><td style=\"font-family: monospace;\">" .
 863               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=" . $hash}, $co{'tree'}) . "</td></tr>\n";
 864         my $parents  = $co{'parents'};
 865         foreach my $par (@$parents) {
 866                 print "<tr><td>parent</td><td style=\"font-family: monospace;\">" .
 867                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$par"}, $par) . "</td></tr>\n";
 868         }
 869         print "</table>".
 870               "</div>\n";
 871         print "<div class=\"page_body\">\n";
 872         my $comment = $co{'comment'};
 873         my $empty = 0;
 874         my $signed = 0;
 875         foreach my $line (@$comment) {
 876                 # print only one empty line
 877                 if ($line eq "") {
 878                         if ($empty || $signed) {
 879                                 next;
 880                         }
 881                         $empty = 1;
 882                 } else {
 883                         $empty = 0;
 884                 }
 885                 if ($line =~ m/^(signed[ \-]off[\-]by[ :]|acked[\-]by[ \:]|cc[ :])/i) {
 886                         $signed = 1;
 887                         print "<span style=\"color: #888888\">" . escapeHTML($line) . "</span><br/>\n";
 888                 } else {
 889                         $signed = 0;
 890                         print escapeHTML($line) . "<br/>\n";
 891                 }
 892         }
 893         print "</div>\n";
 894         print "<div class=\"list_head\">\n";
 895         if ($#difftree > 10) {
 896                 print(($#difftree + 1) . " files changed:\n");
 897         }
 898         print "</div>\n";
 899         foreach my $line (@difftree) {
 900                 # '*100644->100644      blob    9f91a116d91926df3ba936a80f020a6ab1084d2b->bb90a0c3a91eb52020d0db0e8b4f94d30e02d596      net/ipv4/route.c'
 901                 # '+100644      blob    4a83ab6cd565d21ab0385bac6643826b83c2fcd4        arch/arm/lib/bitops.h'
 902                 # '*100664->100644      blob    b1a8e3dd5556b61dd771d32307c6ee5d7150fa43->b1a8e3dd5556b61dd771d32307c6ee5d7150fa43      show-files.c'
 903                 # '*100664->100644      blob    d08e895238bac36d8220586fdc28c27e1a7a76d3->d08e895238bac36d8220586fdc28c27e1a7a76d3      update-cache.c'
 904                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 905                 my $op = $1;
 906                 my $mode = $2;
 907                 my $type = $3;
 908                 my $id = $4;
 909                 my $file = $5;
 910                 if ($type eq "blob") {
 911                         if ($op eq "+") {
 912                                 my $mode_chng = "";
 913                                 if (S_ISREG(oct $mode)) {
 914                                         $mode_chng = sprintf(" with mode: %04o", (oct $mode) & 0777);
 915                                 }
 916                                 print "<div class=\"list\">\n" .
 917                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"},
 918                                       escapeHTML($file) . " <span style=\"color: #008000;\">[new " . file_type($mode) . $mode_chng . "]</span>") . "\n" .
 919                                       "</div>";
 920                                 print "<div class=\"link\">\n" .
 921                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"}, "blob") . "<br/>\n" .
 922                                       "</div>\n";
 923                         } elsif ($op eq "-") {
 924                                 print "<div class=\"list\">\n" .
 925                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"},
 926                                       escapeHTML($file) .  " <span style=\"color: #c00000;\">[deleted " . file_type($mode) . "]</span>") . "\n" .
 927                                       "</div>";
 928                                 print "<div class=\"link\">\n" .
 929                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"}, "blob") . " | " .
 930                                       $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash;f=$file"}, "history") . "<br/>\n" .
 931                                       "</div>\n";
 932                         } elsif ($op eq "*") {
 933                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
 934                                 my $from_id = $1;
 935                                 my $to_id = $2;
 936                                 $mode =~ m/^([0-7]{6})->([0-7]{6})$/;
 937                                 my $from_mode = $1;
 938                                 my $to_mode = $2;
 939                                 my $mode_chnge = "";
 940                                 if ($from_mode != $to_mode) {
 941                                         $mode_chnge = " <span style=\"color: #888888;\">[changed";
 942                                         if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
 943                                                 $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
 944                                         }
 945                                         if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
 946                                                 if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
 947                                                         $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
 948                                                 } elsif (S_ISREG($to_mode)) {
 949                                                         $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
 950                                                 }
 951                                         }
 952                                         $mode_chnge .= "]</span>\n";
 953                                 }
 954                                 print "<div class=\"list\">\n";
 955                                 if ($to_id ne $from_id) {
 956                                         print $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file"},
 957                                               escapeHTML($file) . $mode_chnge) . "\n" .
 958                                               "</div>\n";
 959                                 } else {
 960                                         print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$file"},
 961                                               escapeHTML($file) . $mode_chnge) . "\n" .
 962                                               "</div>\n";
 963                                 }
 964                                 print "<div class=\"link\">\n";
 965                                 if ($to_id ne $from_id) {
 966                                         print $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file"}, "diff") . " | ";
 967                                 }
 968                                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$file"}, "blob") . " | " .
 969                                       $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash;f=$file"}, "history") . "<br/>\n" .
 970                                       "</div>\n";
 971                         }
 972                 }
 973         }
 974         git_footer_html();
 975 }
 976
 977 sub git_blobdiff {
 978         mkdir($gittmp, 0700);
 979         git_header_html();
 980         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
 981                 print "<div class=\"page_nav\">\n" .
 982                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base"}, "commit") .
 983                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash_base"}, "commitdiff") .
 984                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash_base"}, "tree");
 985                         if (defined $file_name) {
 986                                 print " | " . $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash_base;f=$file_name"}, "history");
 987                         }
 988                 print "<br/><br/>\n" .
 989                       "</div>\n";
 990                 print "<div>\n" .
 991                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
 992                       "</div>\n";
 993         } else {
 994                 print "<div class=\"page_nav\">\n" .
 995                       "<br/><br/></div>\n" .
 996                       "<div class=\"title\">$hash vs $hash_parent</div>\n";
 997         }
 998         if (defined $file_name) {
 999                 print "<div class=\"page_path\">\n" .
1000                       "/$file_name\n" .
1001                       "</div>\n";
1002         }
1003         print "<div class=\"page_body\">\n" .
1004               "<pre>\n";
1005         print "<span class=\"diff_info\">blob:" .
1006               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name"}, $hash_parent) .
1007               " -> blob:" .
1008               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name"}, $hash) .
1009               "</span>\n";
1010         git_diff_html($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
1011         print "</pre>\n" .
1012               "</div>";
1013         git_footer_html();
1014 }
1015
1016 sub git_commitdiff {
1017         mkdir($gittmp, 0700);
1018         my %co = git_read_commit($hash);
1019         if (!%co) {
1020                 die_error(undef, "Unknown commit object.");
1021         }
1022         open my $fd, "-|", "$gitbin/git-diff-tree -r " . $co{'parent'} . " $hash" || die_error(undef, "Open failed.");
1023         my (@difftree) = map { chomp; $_ } <$fd>;
1024         close $fd || die_error(undef, "Reading diff-tree failed.");
1025
1026         git_header_html();
1027         print "<div class=\"page_nav\">\n" .
1028               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | \n" .
1029               $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "commitdiff") . " | \n" .
1030               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" .  $co{'tree'} . ";hb=$hash"}, "tree") . "\n" .
1031               "<br/><br/></div>\n";
1032         print "<div>\n" .
1033               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
1034               "</div>\n";
1035         print "<div class=\"page_body\">\n" .
1036               "<pre>\n";
1037         foreach my $line (@difftree) {
1038                 # '*100644->100644      blob    8e5f9bbdf4de94a1bc4b4da8cb06677ce0a57716->8da3a306d0c0c070d87048d14a033df02f40a154      Makefile'
1039                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
1040                 my $op = $1;
1041                 my $mode = $2;
1042                 my $type = $3;
1043                 my $id = $4;
1044                 my $file = $5;
1045                 if ($type eq "blob") {
1046                         if ($op eq "+") {
1047                                 print "<span class=\"diff_info\">" .  file_type($mode) . ":" .
1048                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"}, $id) . "(new)" .
1049                                       "</span>\n";
1050                                 git_diff_html(undef, "/dev/null", $id, "b/$file");
1051                         } elsif ($op eq "-") {
1052                                 print "<span class=\"diff_info\">" . file_type($mode) . ":" .
1053                                       $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id;hb=$hash;f=$file"}, $id) . "(deleted)" .
1054                                       "</span>\n";
1055                                 git_diff_html($id, "a/$file", undef, "/dev/null");
1056                         } elsif ($op eq "*") {
1057                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
1058                                 my $from_id = $1;
1059                                 my $to_id = $2;
1060                                 $mode =~ m/([0-7]+)->([0-7]+)/;
1061                                 my $from_mode = $1;
1062                                 my $to_mode = $2;
1063                                 if ($from_id ne $to_id) {
1064                                         print "<span class=\"diff_info\">" .
1065                                               file_type($from_mode) . ":" . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$from_id;hb=$hash;f=$file"}, $from_id) .
1066                                               " -> " .
1067                                               file_type($to_mode) . ":" . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$file"}, $to_id);
1068                                         print "</span>\n";
1069                                         git_diff_html($from_id, "a/$file",  $to_id, "b/$file");
1070                                 }
1071                         }
1072                 }
1073         }
1074         print "</pre><br/>\n";
1075         print "</div>";
1076         git_footer_html();
1077 }
1078
1079 sub git_history {
1080         if (!defined $hash) {
1081                 $hash = git_read_head($project);
1082         }
1083         my %co = git_read_commit($hash);
1084         if (!%co) {
1085                 die_error(undef, "Unknown commit object.");
1086         }
1087         git_header_html();
1088         print "<div class=\"page_nav\">\n" .
1089               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | " .
1090               $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "commitdiff") . " | " .
1091               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" . $co{'tree'} . ";hb=$hash"}, "tree") .
1092               "<br/><br/>\n" .
1093               "</div>\n";
1094         print "<div>\n" .
1095               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
1096               "</div>\n";
1097         print "<div class=\"page_path\">\n" .
1098               "/$file_name<br/>\n";
1099         print "</div>\n";
1100         open my $fd, "-|", "$gitbin/git-rev-list $hash | $gitbin/git-diff-tree -r --stdin $file_name";
1101         my $commit;
1102         while (my $line = <$fd>) {
1103                 if ($line =~ m/^([0-9a-fA-F]{40}) /){
1104                         $commit = $1;
1105                         next;
1106                 }
1107                 if ($line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/ && (defined $commit)) {
1108                         my $type = $3;
1109                         my $file = $5;
1110                         if ($file ne $file_name || $type ne "blob") {
1111                                 next;
1112                         }
1113                         my %co = git_read_commit($commit);
1114                         if (!%co) {
1115                                 next;
1116                         }
1117                         print "<div class=\"list\">\n" .
1118                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"},
1119                               "<span class=\"log_age\">" . $co{'age_string'} . "</span>" . escapeHTML($co{'title'})) . "\n" .
1120                               "</div>\n";
1121                         print "<div class=\"link\">\n" .
1122                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "commit") .
1123                               " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=" .  $co{'tree'} . ";hb=$commit"}, "tree") .
1124                               " | " . $cgi->a({-href => "$my_uri?p=$project;a=blob;hb=$commit;f=" . $file}, "blob");
1125                         my $blob = git_get_hash_by_path($hash, $file_name);
1126                         my $blob_parent = git_get_hash_by_path($commit, $file_name);
1127                         if (defined $blob && defined $blob_parent && $blob ne $blob_parent) {
1128                                 print " | " . $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$blob;hp=$blob_parent;hb=$commit;f=" . $file}, "diff");
1129                         }
1130                         print "<br/>\n" .
1131                               "</div>\n";
1132                         undef $commit;
1133                 }
1134         }
1135         close $fd;
1136         git_footer_html();
1137 }