aboutsummaryrefslogtreecommitdiff
path: root/gitweb.cgi
blob: fa7a0f590b2a330135758bc42f6c89a32510b3d0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
#!/usr/bin/perl

# gitweb.pl - simple web interface to track changes in git repositories
#
# (C) 2005, Kay Sievers <kay.sievers@vrfy.org>
# (C) 2005, Christian Gierke <ch@gierke.de>
#
# This file is licensed under the GPL v2, or a later version

use strict;
use warnings;
use CGI qw(:standard :escapeHTML);
use CGI::Carp qw(fatalsToBrowser);

my $cgi = new CGI;

# begin config
my $projectroot =	"/pub/scm";
$projectroot =	"/home/kay/public_html/pub/scm";
my $home_link =		"/git";
$home_link =		"/~kay/git";
my $gitbin =		"/usr/bin";
my $gittmp =		"/tmp/gitweb";
my $logo_link =		"/pub/software/scm/cogito";
$logo_link =		"/~kay/pub/software/scm/cogito";
# end config

my $version =		"089";
my $my_url =		$cgi->url();
my $my_uri =		$cgi->url(-absolute => 1);
my $rss_link = "";

my $project = $cgi->param('p');
if (defined($project)) {
	if ($project =~ /(^|\/)(|\.|\.\.)($|\/)/) {
		$project = "";
		die_error("", "Invalid project parameter.");
	}
	if (!(-d "$projectroot/$project")) {
		$project = "";
		die_error("", "No such project.");
	}
	$rss_link = "<link rel=\"alternate\" title=\"$project log\" href=\"$my_uri?p=$project;a=rss\" type=\"application/rss+xml\"/>";
	$ENV{'SHA1_FILE_DIRECTORY'} = "$projectroot/$project/objects";
}

my $file_name = $cgi->param('f');
if (defined($file_name) && $file_name =~ /(^|\/)(|\.|\.\.)($|\/)/) {
	$file_name = "";
	die_error("", "Invalid file parameter.");
}

my $action = $cgi->param('a');
if (defined($action) && $action =~ m/[^0-9a-zA-Z\.\-]+$/) {
	$action = "";
	die_error("", "Invalid action parameter.");
}

my $hash = $cgi->param('h');
if (defined($hash) && !($hash =~ m/^[0-9a-fA-F]{40}$/)) {
	$hash = "";
	die_error("", "Invalid hash parameter.");
}

my $hash_parent = $cgi->param('hp');
if (defined($hash_parent) && !($hash_parent =~ m/^[0-9a-fA-F]{40}$/)) {
	$hash_parent = "";
	die_error("", "Invalid parent hash parameter.");
}

my $time_back = $cgi->param('t');
if (defined($time_back) && !($time_back =~ m/^[0-9]+$/)) {
	$time_back = "";
	die_error("", "Invalid time parameter.");
}

mkdir($gittmp, 0700);

sub git_header_html {
	my $status = shift || "200 OK";

	print $cgi->header(-type=>'text/html',  -charset => 'utf-8', -status=> $status);
	print <<EOF;
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
<!-- git web interface v$version, (C) 2005, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke <ch\@gierke.de> -->
<head>
<title>git - $project</title>
$rss_link
<style type="text/css">
body { font-family: sans-serif; font-size: 12px; margin:0px; }
a { color:#0000cc; }
a:hover { color:#880000; }
a:visited { color:#880000; }
a:active { color:#880000; }
div.page_header\{
	margin:15px 25px 0px; height:25px; padding:8px;
	font-size:18px; font-weight:bold; background-color:#d9d8d1;
}
div.page_header a:visited { color:#0000cc; }
div.page_header a:hover { color:#880000; }
div.page_nav { margin:0px 25px; padding:8px; border:solid #d9d8d1; border-width:0px 1px; }
div.page_nav a:visited { color:#0000cc; }
div.page_footer { margin:0px 25px 15px; height:17px; padding:4px; padding-left:8px; background-color: #d9d8d1; }
div.page_footer_text { float:left; color:#555555; font-style:italic; }
div.page_body { margin:0px 25px; padding:8px; border:solid #d9d8d1; border-width:0px 1px; }
div.title, a.title {
	display:block; margin:0px 25px; padding:6px 8px;
	font-weight:bold; background-color:#edece6; text-decoration:none; color:#000000;
}
a.title:hover { background-color: #d9d8d1; }
div.title_text { margin:0px 25px; padding:6px 8px; border: solid #d9d8d1; border-width:0px 1px 1px; }
div.log_body { margin:0px 25px; padding:8px; padding-left:150px; border:solid #d9d8d1; border-width:0px 1px; }
span.log_age { position:relative; float:left; width:142px; font-style:italic; }
div.log_link { font-size:10px; font-family:sans-serif; font-style:normal; position:relative; float:left; width:142px; }
div.list {
	display:block; margin:0px 25px; padding:4px 6px 2px; border:solid #d9d8d1; border-width:1px 1px 0px;
	font-weight:bold;
}
div.list_head {
	display:block; margin:0px 25px; padding:4px 6px 4px; border:solid #d9d8d1; border-width:1px 1px 0px;
	font-style:italic;
}
div.list a { text-decoration:none; color:#000000; }
div.list a:hover { color:#880000; }
div.link {
	margin:0px 25px; padding:0px 6px 8px; border:solid #d9d8d1; border-width:0px 1px;
	font-family:sans-serif; font-size:10px;
}
td.key { padding-right:10px;  }
span.diff_info { color:#000099; background-color:#eeeeee; font-style:italic; }
a.rss_logo { float:right; border:1px solid;
	line-height:15px;
	border-color:#fcc7a5 #7d3302 #3e1a01 #ff954e; width:35px;
	color:#ffffff; background-color:#ff6600;
	font-weight:bold; font-family:sans-serif; text-align:center;
	font-size:10px; display:block; text-decoration:none;
}
a.rss_logo:hover { background-color:#ee5500; }
</style>
</head>
<body>
EOF
	print "<div class=\"page_header\">\n" .
	      "<a href=\"$logo_link\">" .
	      "<img src=\"$my_uri?a=git-logo.png\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/></a>";
	print $cgi->a({-href => "$my_uri"}, "projects") . " / ";
	if ($project ne "") {
		print $cgi->a({-href => "$my_uri?p=$project;a=log"}, escapeHTML($project));
	}
	if ($action ne "") {
		print " / $action";
	}
	print "</div>\n";
}

sub git_footer_html {
	print "<div class=\"page_footer\">\n";
	if ($project ne "") {
		if (-e "$projectroot/$project/description") {
			open(my $fd, "$projectroot/$project/description");
			my $descr = <$fd>;
			print "<div class=\"page_footer_text\">" . escapeHTML($descr) . "</div>\n";
			close $fd;
		}
		print $cgi->a({-href => "$my_uri?p=$project;a=rss", -class => "rss_logo"}, "RSS") . "\n";
	}
	print "</div>\n" .
	      "</body>\n" .
	      "</html>";
}

sub die_error {
	my $status = shift || "403 Forbidden";
	my $error = shift || "Malformed query, file missing or permission denied"; 

	git_header_html($status);
	print "<div class=\"page_body\">\n" .
	      "<br/><br/>\n";
	print "$status - $error\n";
	print "<br/></div>\n";
	git_footer_html();
	exit 0;
}

sub git_head {
	my $path = shift;
	open(my $fd, "$projectroot/$path/HEAD") || die_error("", "Invalid project directory.");
	my $head = <$fd>;
	close $fd;
	chomp $head;
	return $head;
}

sub git_commit {
	my $commit = shift;
	my %co;
	my @parents;

	open my $fd, "-|", "$gitbin/git-cat-file commit $commit";
	while (my $line = <$fd>) {
		chomp($line);
		last if $line eq "";
		if ($line =~ m/^tree (.*)$/) {
			$co{'tree'} = $1;
		} elsif ($line =~ m/^parent (.*)$/) {
			push @parents, $1;
		} elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
			$co{'author'} = $1;
			$co{'author_epoch'} = $2;
			$co{'author_tz'} = $3;
			$co{'author_name'} = $co{'author'};
			$co{'author_name'} =~ s/ <.*//;
		} elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
			$co{'committer'} = $1;
			$co{'committer_epoch'} = $2;
			$co{'committer_tz'} = $3;
			$co{'committer_name'} = $co{'committer'};
			$co{'committer_name'} =~ s/ <.*//;
		}
	}
	if (!defined($co{'tree'})) {
		return;
	}
	$co{'parents'} = \@parents;
	$co{'parent'} = $parents[0];
	my (@comment) = map { chomp; $_ } <$fd>;
	$co{'comment'} = \@comment;
	$co{'title'} = $comment[0];
	close $fd;

	my $age = time - $co{'committer_epoch'};
	$co{'age'} = $age;
	if ($age > 60*60*24*365*2) {
		$co{'age_string'} = (int $age/60/60/24/365);
		$co{'age_string'} .= " years ago";
	} elsif ($age > 60*60*24*365/12*2) {
		$co{'age_string'} = int $age/60/60/24/365/12;
		$co{'age_string'} .= " months ago";
	} elsif ($age > 60*60*24*7*2) {
		$co{'age_string'} = int $age/60/60/24/7;
		$co{'age_string'} .= " weeks ago";
	} elsif ($age > 60*60*24*2) {
		$co{'age_string'} = int $age/60/60/24;
		$co{'age_string'} .= " days ago";
	} elsif ($age > 60*60*2) {
		$co{'age_string'} = int $age/60/60;
		$co{'age_string'} .= " hours ago";
	} elsif ($age > 60*2) {
		$co{'age_string'} = int $age/60;
		$co{'age_string'} .= " minutes ago";
	}
	return %co;
}

sub git_diff_html {
	my $from = shift;
	my $from_name = shift;
	my $to = shift;
	my $to_name = shift;

	my $from_tmp = "/dev/null";
	my $to_tmp = "/dev/null";
	my $pid = $$;

	# create tmp from-file
	if ($from ne "") {
		$from_tmp = "$gittmp/gitweb_" . $$ . "_from";
		open(my $fd2, "> $from_tmp");
		open my $fd, "-|", "$gitbin/git-cat-file blob $from";
		my @file = <$fd>;
		print $fd2 @file;
		close $fd2;
		close $fd;
	}

	# create tmp to-file
	if ($to ne "") {
		$to_tmp = "$gittmp/gitweb_" . $$ . "_to";
		open my $fd2, "> $to_tmp";
		open my $fd, "-|", "$gitbin/git-cat-file blob $to";
		my @file = <$fd>;
		print $fd2 @file;
		close $fd2;
		close $fd;
	}

	open my $fd, "-|", "/usr/bin/diff -u -p -L $from_name -L $to_name $from_tmp $to_tmp";
	while (my $line = <$fd>) {
		my $char = substr($line,0,1);
		# skip errors
		next if $char eq '\\';
		# color the diff
		print '<span style="color: #008800;">' if $char eq '+';
		print '<span style="color: #CC0000;">' if $char eq '-';
		print '<span style="color: #990099;">' if $char eq '@';
		print escapeHTML($line);
		print '</span>' if $char eq '+' or $char eq '-' or $char eq '@';
	}
	close $fd;

	if ($from ne "") {
		unlink($from_tmp);
	}
	if ($to ne "") {
		unlink($to_tmp);
	}
}

sub mode_str {
	my $mode = oct shift;

	my $modestr;
	if (($mode & 00170000) == 0040000 ) {
		$modestr = 'drwxr-xr-x';
	} elsif (($mode & 00170000) == 0120000 ) {
		$modestr = 'lrwxrwxrwx';
	} elsif (($mode & 00170000) == 0100000 ) {
		# git cares only about the executable bit
		if ($mode & 0100) {
			$modestr = '-rwxr-xr-x';
		} else {
			$modestr = '-rw-r--r--';
		};
	}
	return $modestr;
}

sub file_type {
	my $mode = oct shift;

	if (($mode & 0170000) == 0040000 ) {
		return "directory";
	} elsif (($mode & 0170000) == 0120000 ) {
		return "symlink";
	} elsif (($mode & 0170000) == 0100000 ) {
		if ($mode & 0100) {
			return "executable file";
		} else {
			return "file";
		}
	} else {
		return "unknown";
	}
}

sub date_str {
	my $epoch = shift;
	my $tz = shift || "-0000";

	my %date;
	my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
	my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
	my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
	$date{'hour'} = $hour;
	$date{'minute'} = $min;
	$date{'mday'} = $mday;
	$date{'day'} = $days[$wday];
	$date{'month'} = $months[$mon];
	$date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
	$date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;

	$tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
	my $local = $epoch + ((int $1 + ($2/60)) * 3600);
	($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
	$date{'hour_local'} = $hour;
	$date{'minute_local'} = $min;
	$date{'tz_local'} = $tz;
	return %date;
}

if (defined($action) && $action eq "git-logo.png") {
	print $cgi->header(-type => 'image/png', -expires => '+1d');
	print	"\211\120\116\107\015\012\032\012\000\000\000\015\111\110\104\122".
		"\000\000\000\110\000\000\000\033\004\003\000\000\000\055\331\324".
		"\055\000\000\000\030\120\114\124\105\377\377\377\140\140\135\260".
		"\257\252\000\200\000\316\315\307\300\000\000\350\350\346\367\367".
		"\366\225\014\247\107\000\000\000\163\111\104\101\124\050\317\143".
		"\110\147\040\004\112\134\030\012\010\052\142\123\141\040\002\010".
		"\015\151\105\254\241\241\001\060\014\223\140\066\046\122\221\261".
		"\001\021\326\341\125\144\154\154\314\154\154\014\242\014\160\052".
		"\142\006\052\301\142\035\263\001\002\123\244\010\350\000\003\030".
		"\046\126\021\324\341\040\227\033\340\264\016\065\044\161\051\202".
		"\231\060\270\223\012\021\271\105\210\301\215\240\242\104\041\006".
		"\047\101\202\100\205\301\105\211\040\160\001\000\244\075\041\305".
		"\022\034\232\376\000\000\000\000\111\105\116\104\256\102\140\202";
	exit;
}

if (!defined($project)) {
	print $cgi->redirect($home_link);
	exit;
}

if (!defined($action)) {
	$action = "log";
}

if (!defined($time_back)) {
	$time_back = 1;
}

if ($action eq "blob") {
	git_header_html();
	print "<div class=\"page_nav\">\n";
	print "<br/><br/></div>\n";
	print "<div class=\"title\">$hash</div>\n";
	print "<div class=\"page_body\"><pre>\n";
	open(my $fd, "-|", "$gitbin/git-cat-file blob $hash");
	my $nr;
	while (my $line = <$fd>) {
		$nr++;
		printf "<span style =\"color: #999999;\">%4i\t</span>%s", $nr, escapeHTML($line);;
	}
	close $fd;
	print "<br/></pre>\n";
	print "</div>";
	git_footer_html();
} elsif ($action eq "tree") {
	if ($hash eq "") {
		$hash = git_head($project);
	}
	open my $fd, "-|", "$gitbin/git-ls-tree $hash";
	my (@entries) = map { chomp; $_ } <$fd>;
	close $fd;

	git_header_html();
	my %co = git_commit($hash);
	if (%co) {
		print "<div class=\"page_nav\"> view\n" .
		      $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | " .
		      $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diffs") . " | " .
		      $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash"}, "tree") .
		      "<br/><br/>\n" .
		      "</div>\n";
		print "<div>\n" .
		      $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
		      "</div>\n";
	} else {
		print "<div class=\"page_nav\">\n";
		print "<br/><br/></div>\n";
		print "<div class=\"title\">$hash</div>\n";
	}
	print "<div class=\"page_body\">\n";
	print "<br/><pre>\n";
	foreach my $line (@entries) {
		#'100644	blob	0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa	panic.c'
		$line =~ m/^([0-9]+)\t(.*)\t(.*)\t(.*)$/;
		my $t_mode = $1;
		my $t_type = $2;
		my $t_hash = $3;
		my $t_name = $4;
		if ($t_type eq "blob") {
			print mode_str($t_mode). " " . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$t_hash"}, $t_name);
			if (((oct $t_mode) & 0170000) == 0120000) {
				open my $fd, "-|", "$gitbin/git-cat-file blob $t_hash";
				my $target = <$fd>;
				close $fd;
				print "\t -> $target";
			}
			print "\n";
		} elsif ($t_type eq "tree") {
			print mode_str($t_mode). " " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$t_hash"}, $t_name) . "\n";
		}
	}
	print "</pre>\n";
	print "<br/></div>";
	git_footer_html();
} elsif ($action eq "rss") {
	open my $fd, "-|", "$gitbin/git-rev-list --max-count=20 " . git_head($project);
	my (@revlist) = map { chomp; $_ } <$fd>;
	close $fd;

	print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
	print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
	      "<rss version=\"0.91\">\n";
	print "<channel>\n";
	print "<title>$project</title>\n".
	      "<link> " . $my_url . "/$project/log</link>\n".
	      "<description>$project log</description>\n".
	      "<language>en</language>\n";

	foreach my $commit (@revlist) {
		my %co = git_commit($commit);
		my %ad = date_str($co{'author_epoch'});
		print "<item>\n" .
		      "\t<title>" . sprintf("%d %s %02d:%02d", $ad{'mday'}, $ad{'month'}, $ad{'hour'}, $ad{'min'}) . " - " . escapeHTML($co{'title'}) . "</title>\n" .
		      "\t<link> " . $my_url . "?p=$project;a=commit;h=$commit</link>\n" .
		      "\t<description>";
		my $comment = $co{'comment'};
		foreach my $line (@$comment) {
			print escapeHTML($line) . "<br/>\n";
		}
		print "\t</description>\n" .
		      "</item>\n";
	}
	print "</channel></rss>";
} elsif ($action eq "log") {
	my $date = 0;
	if ($time_back > 0) {
		$date = time - $time_back*24*60*60;
	}
	my $head = git_head($project);
	open my $fd, "-|", "$gitbin/git-rev-list --max-age=$date $head";
	my (@revlist) = map { chomp; $_ } <$fd>;
	close $fd;

	git_header_html();
	print "<div class=\"page_nav\">\n";
	print "view  ";
	print $cgi->a({-href => "$my_uri?p=$project;a=log"}, "last day") . " | " .
	      $cgi->a({-href => "$my_uri?p=$project;a=log;t=7"}, "week") . " | " .
	      $cgi->a({-href => "$my_uri?p=$project;a=log;t=31"}, "month") . " | " .
	      $cgi->a({-href => "$my_uri?p=$project;a=log;t=365"}, "year") . " | " .
	      $cgi->a({-href => "$my_uri?p=$project;a=log;t=0"}, "all") . "<br/>\n";
	print "<br/><br/>\n" .
	      "</div>\n";

	if (!(@revlist)) {
		my %co = git_commit($head);
		print "<div class=\"page_body\"> Last change " . $co{'age_string'} . ".<br/><br/></div>\n";
	}

	foreach my $commit (@revlist) {
		my %co = git_commit($commit);
		my %ad = date_str($co{'author_epoch'});
		print "<div>\n" .
		      $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit", -class => "title"}, 
		      "<span class=\"log_age\">" . $co{'age_string'} . "</span>" . escapeHTML($co{'title'})) . "\n" .
		      "</div>\n";
		print "<div class=\"title_text\">\n" .
		      "<div class=\"log_link\">\n" .
		      "view " . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "commit") . " | " .
		      $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$commit"}, "diff") . "<br/>\n" .
		      "</div>\n" .
		      "<i>" . escapeHTML($co{'author_name'}) .  " [" . $ad{'rfc2822'} . "]</i><br/>\n" .
		      "</div>\n" .
		      "<div class=\"log_body\">\n";
		my $comment = $co{'comment'};
		foreach my $line (@$comment) {
			last if ($line =~ m/^(signed-off|acked)-by:/i);
				print escapeHTML($line) . "<br/>\n";
		}
		print "<br/>\n" .
		      "</div>\n";
	}
	git_footer_html();
} elsif ($action eq "commit") {
	my %co = git_commit($hash);
	if (!%co) {
		die_error("", "Unknown commit object.");
	}
	my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
	my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});

	my @difftree;
	if (defined($co{'parent'})) {
		open my $fd, "-|", "$gitbin/git-diff-tree -r " . $co{'parent'} . " $hash";
		@difftree = map { chomp; $_ } <$fd>;
		close $fd;
	} else {
		# fake git-diff-tree output for initial revision
		open my $fd, "-|", "$gitbin/git-ls-tree -r $hash";
		@difftree = map { chomp;  "+" . $_ } <$fd>;
		close $fd;
	}
	git_header_html();
	print "<div class=\"page_nav\"> view\n" .
	      $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | \n" .
	      $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diffs") . " | \n" .
	      $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash"}, "tree") . "\n" .
	      "<br/><br/></div>\n";
	print "<div>\n" .
	      $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
	      "</div>\n";
	print "<div class=\"title_text\">\n" .
	      "<table cellspacing=\"0\">";
	print "<tr><td class=\"key\">author</td><td>" . escapeHTML($co{'author'}) . "</td><tr><td></td><td>" .
	      " " . $ad{'rfc2822'};
	if ($ad{'hour_local'} < 6) {
		print "<span style=\"color: #cc0000;\">";
	}
	printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
	if ($ad{'hour_local'} < 6 ) {
		print "</span>";
	}
	print "</i>\n" .
	      "</td></tr>\n";
	print "<tr><td class=\"key\">committer</td><td>" . escapeHTML($co{'committer'}) . "</td><tr><td></td><td>" .
	      " " . $cd{'rfc2822'} . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</i>\n" .
	      "</td></tr>\n";
	print "<tr><td class=\"key\">commit</td><td style=\"font-family: monospace;\">$hash</td></tr>\n";
	print "<tr><td class=\"key\">tree</td><td style=\"font-family: monospace;\">" . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash"}, $co{'tree'}) . "</td></tr>\n";
	my $parents  = $co{'parents'};
	foreach my $par (@$parents) {
		print "<tr><td class=\"key\">parent</td><td style=\"font-family: monospace;\">" . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$par"}, $par) . "</td></tr>\n";
	}
	print "</table></div>\n";
	print "<div class=\"page_body\">\n";
	my $comment = $co{'comment'};
	foreach my $line (@$comment) {
		if ($line =~ m/(signed-off|acked)-by:/i) {
			print "<span style=\"color: #888888\">" . escapeHTML($line) . "</span><br/>\n";
		} else {
			print escapeHTML($line) . "<br/>\n";
		}
	}
	print "</div>\n";
	if ($#difftree > 10) {
		print "<div class=\"list_head\">" . ($#difftree + 1) . " files changed:<br/></div>\n";
	}
	foreach my $line (@difftree) {
		# '*100644->100644	blob	9f91a116d91926df3ba936a80f020a6ab1084d2b->bb90a0c3a91eb52020d0db0e8b4f94d30e02d596	net/ipv4/route.c'
		# '+100644	blob	4a83ab6cd565d21ab0385bac6643826b83c2fcd4	arch/arm/lib/bitops.h'
		# '*100664->100644	blob	b1a8e3dd5556b61dd771d32307c6ee5d7150fa43->b1a8e3dd5556b61dd771d32307c6ee5d7150fa43	show-files.c'
		# '*100664->100644	blob	d08e895238bac36d8220586fdc28c27e1a7a76d3->d08e895238bac36d8220586fdc28c27e1a7a76d3	update-cache.c'
		$line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
		my $op = $1;
		my $mode = $2;
		my $type = $3;
		my $id = $4;
		my $file = $5;
		my $mode_chng = "";
		if ($type eq "blob") {
			if ($op eq "+") {
				print "<div class=\"list\">\n" .
				      $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"},
				      escapeHTML($file) . " <span style=\"color: #008000;\">[new " . file_type($mode) . "]</span>") . "\n" .
				      "</div>";
				print "<div class=\"link\">\n" .
				      "view " .
				      $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"}, "file") . "<br/>\n" .
				      "</div>\n";
			} elsif ($op eq "-") {
				print "<div class=\"list\">\n" .
				      $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"},
				      escapeHTML($file) .  " <span style=\"color: #c00000;\">[deleted " . file_type($mode) . "]</span>") . "\n" .
				      "</div>";
				print "<div class=\"link\">\n" .
				      "view " .
				      $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"}, "file") . " | " .
				      $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash;f=$file"}, "history") . "<br/>\n" .
				      "</div>\n";
			} elsif ($op eq "*") {
				$id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
				my $from_id = $1;
				my $to_id = $2;
				$mode =~ m/^([0-7]{6})->([0-7]{6})$/;
				my $from_mode = $1;
				my $to_mode = $2;
				my $mode_chnge = "";
				if (((oct $from_mode) & 0170100) != ((oct $to_mode) & 0170100)) {
					$mode_chnge = " <span style=\"color: #888888;\">[changed from " . file_type($from_mode) . " to " . file_type($to_mode) . "]</span>\n";
				}
				print "<div class=\"list\">\n";
				if ($to_id ne $from_id) {
					print $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id"},
					      escapeHTML($file) . $mode_chnge) . "\n" .
					      "</div>\n";
				} else {
					print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id"},
					      escapeHTML($file) . $mode_chnge) . "\n" .
					      "</div>\n";
				}
				print "<div class=\"link\">\n" .
				      "view ";
				if ($to_id ne $from_id) {
					print $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id"}, "diff") . " | ";
				}
				print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id"}, "file") . " | " .
				      $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash;f=$file"}, "history") . "<br/>\n" .
				      "</div>\n";
			}
		}
	}
	git_footer_html();
} elsif ($action eq "blobdiff") {
	git_header_html();
	print "<div class=\"page_nav\">\n";
	print "<br/><br/></div>\n";
	print "<div class=\"title\">$hash vs $hash_parent</div>\n";
	print "<div class=\"page_body\">\n" .
	      "<pre>\n";
	print "<span class=\"diff_info\">blob:" .
	      $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$hash_parent"}, $hash_parent) .
	      " -> blob:" .
	      $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$hash"}, $hash) .
	      "</span>\n";
	git_diff_html($hash_parent, $hash_parent, $hash, $hash);
	print "</pre>\n" .
	      "<br/></div>";
	git_footer_html();
} elsif ($action eq "commitdiff") {
	my %co = git_commit($hash);
	if (!%co) {
		die_error("", "Unknown commit object.");
	}
	open my $fd, "-|", "$gitbin/git-diff-tree -r " . $co{'parent'} . " $hash";
	my (@difftree) = map { chomp; $_ } <$fd>;
	close $fd;

	git_header_html();
	print "<div class=\"page_nav\"> view\n" .
	      $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | \n" .
	      $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diffs") . " | \n" .
	      $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash"}, "tree") . "\n" .
	      "<br/><br/></div>\n";
	print "<div>\n" .
	      $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
	      "</div>\n";
	print "<div class=\"page_body\">\n" .
	      "<pre>\n";
	foreach my $line (@difftree) {
		# '*100644->100644	blob	8e5f9bbdf4de94a1bc4b4da8cb06677ce0a57716->8da3a306d0c0c070d87048d14a033df02f40a154	Makefile'
		$line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
		my $op = $1;
		my $mode = $2;
		my $type = $3;
		my $id = $4;
		my $file = $5;
		if ($type eq "blob") {
			if ($op eq "+") {
				print "<span class=\"diff_info\">new " .  file_type($mode) . ":" .
				      $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"}, $id) .
				      "</span>\n";
				git_diff_html("", "/dev/null", $id, "b/$file");
			} elsif ($op eq "-") {
				print "<span class=\"diff_info\">deleted " . file_type($mode) . ":" .
				      $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"}, $id) .
				      "</span>\n";
				git_diff_html($id, "a/$file", "", "/dev/null");
			} elsif ($op eq "*") {
				$id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
				my $from_id = $1;
				my $to_id = $2;
				$mode =~ m/([0-7]+)->([0-7]+)/;
				my $from_mode = $1;
				my $to_mode = $2;
				if ($from_id ne $to_id) {
					print "<span class=\"diff_info\">" .
					      file_type($from_mode) . ":" . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$from_id"}, $from_id) .
					      " -> " .
					      file_type($to_mode) . ":" . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id"}, $to_id);
					print "</span>\n";
					git_diff_html($from_id, "a/$file",  $to_id, "b/$file");
				}
			}
		}
	}
	print "<br/></pre>\n";
	print "</div>";
	git_footer_html();
} elsif ($action eq "history") {
	if (!(defined($hash))) {
		$hash = git_head($project);
	}
	open my $fd, "-|", "$gitbin/git-rev-list $hash";
	my (@revlist) = map { chomp; $_ } <$fd>;
	close $fd;

	git_header_html();
	print "<div class=\"page_nav\">\n";
	print "<br/><br/></div>\n";
	print "<div>\n" .
	      $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($file_name)) . "\n" .
	      "</div>\n";
	foreach my $rev (@revlist) {
		my %co = git_commit($rev);
		my $parents  = $co{'parents'};
		my $found = 0;
		foreach my $parent (@$parents) {
			open $fd, "-|", "$gitbin/git-diff-tree -r $parent $rev $file_name";
			my (@difftree) = map { chomp; $_ } <$fd>;
			close $fd;

			foreach my $line (@difftree) {
				$line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
				my $file = $5;
				if ($file eq $file_name) {
					$found = 1;
					last;
				}
			}
		}
		if ($found) {
			print "<div class=\"list\">\n" .
			      $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$rev"},
			      "<span class=\"log_age\">" . $co{'age_string'} . "</span>" . escapeHTML($co{'title'})) . "\n" .
			      "</div>\n";
			print "<div class=\"link\">\n" .
			      "view " .
			      $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$rev"}, "commit") . " | " .
			      $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$rev"}, "tree") . "<br/><br/>\n" .
			      "</div>\n";
		}
	}
	git_footer_html();
} else {
	$action = "";
	die_error("", "Unknown action.");
}