#!/usr/bin/perl
# gitweb.pl - simple web interface to track changes in git repositories
#
# Version 021
#
# (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 $projectroot = "/home/kay/public_html";
my $defaultprojects = ".";
my $gitbin = "/home/kay/bin/git";
my $gittmp = "/tmp";
my $cgi = new CGI;
my $project = "";
my $action = "";
my $hash = "";
my $hash_parent = "";
my $view_back;
my $myself = $cgi->url(-absolute => 1);
my $url_parm = $cgi->url(-path => 1);
$url_parm =~ s/.*$myself//;
# get values from url
if ($url_parm =~ m#/(.+)/commit/([0-9a-fA-F]+)$#) {
$project = $1;
$action = "commit";
$hash = $2;
} elsif ($url_parm =~ m#/(.+)/commitdiff/([0-9a-fA-F]+)$#) {
$project = $1;
$action = "commitdiff";
$hash = $2;
} elsif ($url_parm =~ m#/(.+)/blobdiff/([0-9a-fA-F]+)/([0-9a-fA-F]+)$#) {
$project = $1;
$action = "blobdiff";
$hash = $2;
$hash_parent = $3;
} elsif ($url_parm =~ m#/(.+)/blob/([0-9a-fA-F]+)$#) {
$project = $1;
$action = "blob";
$hash = $2;
} elsif ($url_parm =~ m#/(.+)/tree/([0-9a-fA-F]+)$#) {
$project = $1;
$action = "tree";
$hash = $2;
} elsif ($url_parm =~ m#/(.+)/log/([0-9]+)$#) {
$project = $1;
$action = "log";
$view_back = $2;
} elsif ($url_parm =~ m#/(.+)/log$#) {
$project = $1;
$action = "log";
$view_back = 1;
} elsif ($url_parm =~ m#/(.+)/rss$#) {
$project = $1;
$action = "rss";
$view_back = 1;
} elsif ($url_parm =~ m#/git-logo.png$#) {
print $cgi->header(-type => 'image/png');
print "\211\120\116\107\015\012\032\012\000\000\000\015\111\110\104\122".
"\000\000\000\110\000\000\000\033\004\003\000\000\000\055\331\324".
"\055\000\000\000\030\120\114\124\105\377\377\377\140\140\135\260".
"\257\252\000\200\000\316\315\307\300\000\000\350\350\346\367\367".
"\366\225\014\247\107\000\000\000\163\111\104\101\124\050\317\143".
"\110\147\040\004\112\134\030\012\010\052\142\123\141\040\002\010".
"\015\151\105\254\241\241\001\060\014\223\140\066\046\122\221\261".
"\001\021\326\341\125\144\154\154\314\154\154\014\242\014\160\052".
"\142\006\052\301\142\035\263\001\002\123\244\010\350\000\003\030".
"\046\126\021\324\341\040\227\033\340\264\016\065\044\161\051\202".
"\231\060\270\223\012\021\271\105\210\301\215\240\242\104\041\006".
"\047\101\202\100\205\301\105\211\040\160\001\000\244\075\041\305".
"\022\034\232\376\000\000\000\000\111\105\116\104\256\102\140\202";
exit;
} elsif ($url_parm =~ m#/(.+)$#) {
$project = $1;
$action = "log";
$view_back = 1;
}
# sanitize input
$project =~ s#\/\.+##g;
$ENV{'SHA1_FILE_DIRECTORY'} = "$projectroot/$project/.git/objects";
sub git_header_html {
print $cgi->header(-type => 'text/html; charset: utf-8');
print <<EOF;
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>git - $project $action</title>
<link rel="alternate" title="$project log" href="$myself/$project/rss" type="application/rss+xml">
<style type="text/css">
body { font-family: sans-serif; font-size: 12px; margin:25px; }
div.body { border-width:1px; border-style:solid; border-color:#D9D8D1; }
div.head1 { font-size:20px; padding:8px; background-color: #D9D8D1; font-weight:bold; }
div.head1 a:visited { color:#0000cc; }
div.head1 a:hover { color:#880000; }
div.head1 a:active { color:#880000; }
div.head2 { padding:8px; }
div.head2 a:visited { color:#0000cc; }
div.head2 a:hover { color:#880000; }
div.head2 a:active { color:#880000; }
div.shortlog { padding:8px; background-color: #D9D8D1; font-weight:bold; }
table { padding:0px; margin:0px; width:100%; }
tr { vertical-align:top; }
td { padding:8px; margin:0px; font-family: sans-serif; font-size: 12px; }
td.head1 { background-color: #D9D8D1; font-weight:bold; }
td.head1 a { color:#000000; text-decoration:none; }
td.head1 a:hover { color:#880000; text-decoration:underline; }
td.head1 a:visited { color:#000000; }
td.head2 { background-color: #EDECE6; font-family: monospace; font-size:12px; }
td.head3 { background-color: #EDECE6; font-size:10px; }
div.signed_off { color: #a9a8a1; }
a { color:#0000cc; }
a:hover { color:#880000; }
a:visited { color:#880000; }
a:active { color:#880000; }
pre { padding:8px; }
</style>
</head>
<body>
EOF
print "<div class=\"body\">\n";
print "<div class=\"head1\">";
print "<a href=\"http://kernel.org/pub/software/scm/git/\"><img src=\"$myself/git-logo.png\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/></a>";
if ($defaultprojects ne "") {
print $cgi->a({-href => "$myself"}, "projects") . " / ";
}
if ($project ne "") {
print $cgi->a({-href => "$myself/$project/log"}, $project);
}
if ($action ne "") {
print " / $action";
}
print "</div>\n";
}
sub git_footer_html {
print "</div>";
print $cgi->end_html();
}
sub git_head {
open my $fd, "$projectroot/$project/.git/HEAD";
my $head = <$fd>;
close $fd;
chomp $head;
return $head;
}
sub git_diff {
my $old_name = shift || "/dev/null";
my $new_name = shift || "/dev/null";
my $old = shift;
my $new = shift;
my $tmp_old = "/dev/null";
my $tmp_new = "/dev/null";
my $old_label = "/dev/null";
my $new_label = "/dev/null";
# create temp from-file
if ($old ne "") {
open my $fd2, "> $gittmp/$old";
open my $fd, "-|", "$gitbin/cat-file", "blob", $old;
while (my $line = <$fd>) {
print $fd2 $line;
}
close $fd2;
close $fd;
$tmp_old = "$gittmp/$old";
$old_label = "a/$old_name";
}
# create tmp to-file
if ($new ne "") {
open my $fd2, "> $gittmp/$new";
open my $fd, "-|", "$gitbin/cat-file", "blob", $new;
while (my $line = <$fd>) {
print $fd2 $line;
}
close $fd2;
close $fd;
$tmp_new = "$gittmp/$new";
$new_label = "b/$new_name";
}
open my $fd, "-|", "/usr/bin/diff", "-L", $old_label, "-L", $new_label, "-u", "-p", $tmp_old, $tmp_new;
print "<span style =\"color: #000099;\">===== ";
if ($old ne "") {
print $cgi->a({-href => "$myself/$project/blob/$old"}, $old);
} else {
print $old_name;
}
print " vs ";
if ($new ne "") {
print $cgi->a({-href => "$myself/$project/blob/$new"}, $new);
} else {
print $new_name;
}
print " =====</span>\n";
while (my $line = <$fd>) {
my $char = substr($line,0,1);
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 $fd;
unlink("$gittmp/$new");
unlink("$gittmp/$old");
}
if ($project eq "") {
opendir(my $fd, "$projectroot/$defaultprojects");
my (@path) = grep(!/^\./, readdir($fd));
closedir($fd);
git_header_html();
print "<div class=\"head2\">\n";
print "<br/><br/>\n";
foreach my $line (@path) {
if (-e "$projectroot/$defaultprojects/$line/.git/HEAD") {
print $cgi->a({-href => "$myself/$defaultprojects/$line/log"}, $line) . "<br/>\n";
}
}
print "</div><br/>";
git_footer_html();
exit;
}
if ($action eq "blob") {
git_header_html();
print "<br/><br/>\n";
print "<pre>\n";
open my $fd, "-|", "$gitbin/cat-file", "blob", $hash;
my $nr;
while (my $line = <$fd>) {
$nr++;
print "$nr\t" . escapeHTML($line);;
}
close $fd;
print "</pre>\n";
print "<br/>";
git_footer_html();
} elsif ($action eq "tree") {
if ($hash eq "") {
$hash = git_head();
}
open my $fd, "-|", "$gitbin/ls-tree", $hash;
my (@entries) = map { chomp; $_ } <$fd>;
close $fd;
git_header_html();
print "<br/><br/>\n";
print "<pre>\n";
foreach my $line (@entries) {
#'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa panic.c'
$line =~ m/^([0-9]+)\t(.*)\t(.*)\t(.*)$/;
my $t_type = $2;
my $t_hash = $3;
my $t_name = $4;
if ($t_type eq "blob") {
print "BLOB\t" . $cgi->a({-href => "$myself/$project/blob/$3"}, $4) . "\n";
} elsif ($t_type eq "tree") {
print "TREE\t" . $cgi->a({-href => "$myself/$project/tree/$3"}, $4) . "\n";
}
}
print "</pre>\n";
print "<br/>";
git_footer_html();
} elsif ($action eq "log" || $action eq "rss") {
open my $fd, "-|", "$gitbin/rev-tree", git_head();
my (@revtree) = reverse sort map { chomp; $_ } <$fd>;
close $fd;
if ($action eq "log") {
git_header_html();
print "<div class=\"head2\">\n";
print "view ";
print $cgi->a({-href => "$myself/$project/log"}, "last day") . " | ";
print $cgi->a({-href => "$myself/$project/log/7"}, "week") . " | ";
print $cgi->a({-href => "$myself/$project/log/31"}, "month") . " | ";
print $cgi->a({-href => "$myself/$project/log/365"}, "year") . " | ";
print $cgi->a({-href => "$myself/$project/log/0"}, "all") . "<br/>\n";
print "<br/><br/>\n";
print "</div>\n";
print "<table cellspacing=\"0\" class=\"log\">\n";
} elsif ($action eq "rss") {
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> " . $cgi->url() . "/$project/log</link>\n".
"<description>$project log</description>\n".
"<language>en</language>\n";
}
for (my $i = 0; $i <= $#revtree; $i++) {
my $rev = $revtree[$i];
#foreach my $rev (@revtree) {
# '1114106118 755e3010ee10dadf42a8a80770e1b115fb038d9b:1 2af17b4854036a1c2ec6c101d93c8dd1ed80d24e:1'
last if !($rev =~ m/^([0-9]+) ([0-9a-fA-F]+).* ([0-9a-fA-F]+)/);
my $time = $1;
my $commit = $2;
my $parent = $3;
my @parents;
my ($author, $author_time, $author_timezone);
my ($committer, $committer_time, $committer_timezone);
my $tree;
my $comment;
my $shortlog;
open my $fd, "-|", "$gitbin/cat-file", "commit", $commit;
while (my $line = <$fd>) {
chomp($line);
last if $line eq "";
if ($line =~ m/^tree (.*)$/) {
$tree = $1;
} elsif ($line =~ m/^parent (.*)$/) {
push @parents, $1;
} elsif ($line =~ m/^committer (.*>) ([0-9]+) (.*)$/) {
$committer = $1;
$committer_time = $2;
$committer_timezone = $3;
} elsif ($line =~ m/^author (.*>) ([0-9]+) (.*)$/) {
$author = $1;
$author_time = $2;
$author_timezone = $3;
}
}
$shortlog = <$fd>;
chomp($shortlog);
$shortlog = escapeHTML($shortlog);
$comment = $shortlog . "<br/>";
while (my $line = <$fd>) {
chomp($line);
if ($line =~ m/signed-off-by:/i) {
$comment .= '<div class="signed_off">' . escapeHTML($line) . "<br/></div>\n";
} else {
$comment .= escapeHTML($line) . "<br/>\n";
}
}
close $fd;
my $age = time-$committer_time;
my $age_string;
if ($age > 60*60*24*365*2) {
$age_string = int $age/60/60/24/365;
$age_string .= " years ago";
} elsif ($age > 60*60*24*365/12*2) {
$age_string = int $age/60/60/24/365/12;
$age_string .= " months ago";
} elsif ($age > 60*60*24*7*2) {
$age_string = int $age/60/60/24/7;
$age_string .= " weeks ago";
} elsif ($age > 60*60*24*2) {
$age_string = int $age/60/60/24;
$age_string .= " days ago";
} elsif ($age > 60*60*2) {
$age_string = int $age/60/60;
$age_string .= " hours ago";
} elsif ($age > 60*2) {
$age_string = int $age/60;
$age_string .= " minutes ago";
}
if ($action eq "log") {
if ($view_back > 0 && $age > $view_back*60*60*24) {
if ($i == 0) {
print "<tr>\n";
print "<td class=\"head1\"> Last change $age_string. </td>\n";
print "</tr>\n";
}
last;
}
print "<tr>\n";
print "<td class=\"head1\">" . $age_string . "</td>\n";
print "<td class=\"head1\">" . $cgi->a({-href => "$myself/$project/commit/$commit"}, $shortlog) . "</td>";
print "</tr>\n";
print "<tr>\n";
print "<td class=\"head3\">";
print $cgi->a({-href => "$myself/$project/commitdiff/$commit"}, "view diff") . "<br/>\n";
print $cgi->a({-href => "$myself/$project/commit/$commit"}, "view commit") . "<br/>\n";
print $cgi->a({-href => "$myself/$project/tree/$tree"}, "view tree") . "<br/>\n";
print "</td>\n";
print "<td class=\"head2\">\n";
print "author " . escapeHTML($author) . " [" . gmtime($author_time) . " " . $author_timezone . "]<br/>\n";
print "committer " . escapeHTML($committer) . " [" . gmtime($committer_time) . " " . $committer_timezone . "]<br/>\n";
print "commit $commit<br/>\n";
print "tree $tree<br/>\n";
foreach my $par (@parents) {
print "parent $par<br/>\n";
}
print "</td>";
print "</tr>\n";
print "<tr>\n";
print "<td></td>\n";
print "<td>\n";
print "$comment<br/><br/>\n";
print "</td>";
print "</tr>\n";
} elsif ($action eq "rss") {
if ($i < 12) {
print "<item>\n\t<title>$age_string: $shortlog</title>\n";
print "\t<link> " . $cgi->url() . "/$project/commit/$commit</link>\n";
print "</item>\n";
}
}
}
if ($action eq "log") {
print "</table>\n";
git_footer_html();
} elsif ($action eq "rss") {
print "</channel></rss>";
}
} elsif ($action eq "commit") {
my $parent = "";
open my $fd, "-|", "$gitbin/cat-file", "commit", $hash;
while (my $line = <$fd>) {
chomp($line);
last if $line eq "";
if ($line =~ m/^parent (.*)$/ && $parent eq "") {
$parent = $1;
}
}
my $shortlog = <$fd>;
$shortlog = escapeHTML($shortlog);
close $fd;
open $fd, "-|", "$gitbin/diff-tree", "-r", $parent, $hash;
my (@difftree) = map { chomp; $_ } <$fd>;
close $fd;
git_header_html();
print "<div class=\"head2\">\n";
print "view " . $cgi->a({-href => "$myself/$project/commitdiff/$hash"}, "diff") . "</div><br/><br/>\n";
print "<div class=\"shortlog\">$shortlog<br/></div>\n";
print "<pre>\n";
foreach my $line (@difftree) {
# '*100644->100644 blob 9f91a116d91926df3ba936a80f020a6ab1084d2b->bb90a0c3a91eb52020d0db0e8b4f94d30e02d596 net/ipv4/route.c'
# '+100644 blob 4a83ab6cd565d21ab0385bac6643826b83c2fcd4 arch/arm/lib/bitops.h'
$line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
my $op = $1;
my $mode = $2;
my $type = $3;
my $id = $4;
my $file = $5;
if ($type eq "blob") {
if ($op eq "+") {
print "added\t" . $cgi->a({-href => "$myself/$project/blob/$id"}, $file) . "\n";
} elsif ($op eq "-") {
print "removed\t" . $cgi->a({-href => "$myself/$project/blob/$id"}, $file) . "\n";
} elsif ($op eq "*") {
$id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
my $old = $1;
my $new = $2;
print "changed\t" . $cgi->a({-href => "$myself/$project/blobdiff/$old/$new"}, $file) . "\n";
}
}
}
print "</pre>\n";
print "<br/>";
git_footer_html();
} elsif ($action eq "blobdiff") {
git_header_html();
print "<br/><br/>\n";
print "<pre>\n";
git_diff($hash, $hash_parent, $hash, $hash_parent);
print "</pre>\n";
print "<br/>";
git_footer_html();
} elsif ($action eq "commitdiff") {
my $parent = "";
open my $fd, "-|", "$gitbin/cat-file", "commit", $hash;
while (my $line = <$fd>) {
chomp($line);
last if $line eq "";
if ($line =~ m/^parent (.*)$/ && $parent eq "") {
$parent = $1;
}
}
my $shortlog = <$fd>;
$shortlog = escapeHTML($shortlog);
close $fd;
open $fd, "-|", "$gitbin/diff-tree", "-r", $parent, $hash;
my (@difftree) = map { chomp; $_ } <$fd>;
close $fd;
git_header_html();
print "<div class=\"head2\">\n";
print "view " . $cgi->a({-href => "$myself/$project/commit/$hash"}, "commit") . "</div><br/><br/>\n";
print "<div class=\"shortlog\">$shortlog<br/></div>\n";
print "<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 "+") {
git_diff("", $file, "", $id);
} elsif ($op eq "-") {
git_diff($file, "", $id, "");
} elsif ($op eq "*") {
$id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
git_diff($file, $file, $1, $2);
}
}
}
print "</pre>\n";
print "<br/>";
git_footer_html();
}