5 Simple tracking of remote files in central git repository
6 with only shell, netcat, rsync and ssh on client
8 Start server, install on remote-host or upgrade with:
10 ./bak-git-server.pl /path/to/backup 192.168.42.42
11 [--install remote-host]
14 You will want to add following to C<~/.ssh/config>
16 RemoteForward 9001 localhost:9001
31 'upgrade!' => \$upgrade,
32 'install=s' => \$install,
35 my ( $dir, $server_ip ) = @ARGV;
36 die "usage: $0 /backup/directory\n" unless $dir;
37 $server_ip ||= '127.0.0.1';
39 my $shell_client = <<__SHELL_CLIENT__;
41 echo `hostname -s` `pwd` \$* | nc $server_ip 9001
45 system 'git init' unless -e '.git';
47 if ( $upgrade || $install ) {
48 open(my $fh, '>', '/tmp/bak');
49 print $fh $shell_client;
51 chmod 0755, '/tmp/bak';
53 my @hosts = grep { -d $_ } glob '*';
54 @hosts = ( $install ) if $install;
56 foreach my $hostname ( @hosts ) {
57 warn "install on $hostname\n";
58 system 'ssh-copy-id', "root\@$hostname" if ! -d $hostname;
59 system "scp /tmp/bak root\@$hostname:/usr/local/bin/";
60 system "ssh root\@$hostname apt-get install -y rsync";
64 my $server = IO::Socket::INET->new(
66 LocalAddr => $server_ip,
73 warn "dir: $dir listen: $server_ip:9001\n"
79 system "find $hostname -type f | sed 's,$hostname,,' > /tmp/$hostname.list";
80 system "rsync -avv --files-from /tmp/$hostname.list root\@$hostname:/ $hostname/"
83 while (my $client = $server->accept()) {
84 my ($hostname,$pwd,$command,$rel_path,$message) = split(/\s+/,<$client>,5);
86 my $path = $rel_path =~ m{^/} ? $rel_path : "$pwd/$rel_path";
89 warn "$hostname [$command] $path | $message\n";
90 $message ||= "$hostname [$command] $path";
96 pull_changes $hostname;
97 } elsif ( $command eq 'add' ) {
98 mkpath "$hostname/$dir" unless -e "$hostname/$dir";
99 system 'rsync', '-avv', "root\@$hostname:$path", "$hostname/$path";
100 system 'git', 'add', "$hostname/$path";
101 } elsif ( $command eq 'commit' ) {
102 pull_changes $hostname;
103 system 'git', 'commit', '-m', $message,
104 -e "$hostname/$path" ? "$hostname/$path" : $hostname;
105 } elsif ( $command =~ m{(diff|status|log)} ) {
106 my $opt = '--summary' if $command eq 'log';
107 pull_changes $hostname if $command eq 'diff';
108 print $client `git $command $opt $hostname`;
109 } elsif ( $command eq 'revert' ) {
110 print $client `git checkout -- $hostname/$path`;
111 system 'rsync', '-avv', "$hostname/$path", "root\@$hostname:$path";
113 print $client "Unknown command: $command\n";