--install is now server push, added --upgrade

diff --git a/bak-git-server.pl b/bak-git-server.pl
index c7b842a..7fb2ac3 100755 (executable)
--- a/bak-git-server.pl
+++ b/bak-git-server.pl
@@ -2,16 +2,14 @@
 
 =head1 bak-git
 
-Simpliest possible backup from remote host (with natcat as
-only depenency) to ad-hoc remote server
+Simple tracking of remote files in central git repository
+with only shell, netcat, rsync and ssh on client
 
-Install on client with:
+Start server, install on remote-host or upgrade with:
 
-  echo install | nc 127.0.0.1 9001 > bak ; chmod 755 bak
-
-Start server with:
-
-  ./server.pl /path/to/backup 127.0.0.1
+  ./bak-git-server.pl /path/to/backup 192.168.42.42
+       [--install remote-host]
+       [--upgrade]
 
 You will want to add following to C<~/.ssh/config>
 
@@ -26,9 +24,12 @@ use IO::Socket::INET;
 use File::Path;
 use Getopt::Long;
 
-my $install = 0;
+my $upgrade = 0;
+my $install;
+
 GetOptions(
-       'install!' => \$install,
+       'upgrade!'  => \$upgrade,
+       'install=s' => \$install,
 ) || die "$!\n";
 
 my ( $dir, $server_ip ) = @ARGV;
@@ -43,14 +44,20 @@ __SHELL_CLIENT__
 chdir $dir;
 system 'git init' unless -e '.git';
 
-if ( $install ) {
+if ( $upgrade || $install ) {
        open(my $fh, '>', '/tmp/bak');
        print $fh $shell_client;
        close($fh);
+       chmod 0755, '/tmp/bak';
 
-       foreach my $hostname ( glob '*' ) {
+       my @hosts = grep { -d $_ } glob '*';
+       @hosts = ( $install ) if $install;
+
+       foreach my $hostname ( @hosts ) {
                warn "install on $hostname\n";
+               system 'ssh-copy-id', "root\@$hostname" if ! -d $hostname;
                system "scp /tmp/bak root\@$hostname:/usr/local/bin/";
+               system "ssh root\@$hostname apt-get install rsync";
        }
 }
 
@@ -64,21 +71,12 @@ my $server = IO::Socket::INET->new(
 
 
 warn "dir: $dir listen: $server_ip:9001\n"
-       , "remote-host> echo install | nc $server_ip 9001 > bak ; chmod 755 bak\n"
        , $shell_client
 ;
 
 while (my $client = $server->accept()) {
        my ($hostname,$pwd,$command,$path,$message) = split(/\s+/,<$client>,5);
 
-       if ( $pwd eq 'install' ) {
-               warn "install on $hostname\n";
-               print $client $shell_client;
-               close($client);
-               system 'ssh-copy-id', "root\@$hostname" if ! -d $hostname;
-               next;
-       }
-
        $message ||= '';
        $path = "$pwd/$path" unless $path =~ m{^/};