Annotation of /trunk/bin/BackupPC_recover_from_increments

#!/usr/bin/perl -w

use strict;

=head1 NAME

BackupPC_recover_from_increments

=head1 DESCRIPTION

quick hack to create BackupPC pool out of increments

=head1 SYNOPSYS

 BackupPC_recover_from_increments /restore/from/directory/ [/path/to/increment/to/restore.tar.gz ... ]

=head1 HISTORY

2006-02-07 Dobrica Pavlinusic <dpavlin@rot13.org>

=cut

use File::Find;
use Data::Dumper;

use lib "/data/backuppc/lib";
use BackupPC::Lib;

my $host = 'restore';
my $share = '/etc';

# connect to BackupPC_server

die("BackupPC::Lib->new failed\n") if ( !(my $bpc = BackupPC::Lib->new) );
my %Conf = $bpc->Conf();

$bpc->ChildInit();

my $err = $bpc->ServerConnect($Conf{ServerHost}, $Conf{ServerPort});
if ( $err ) {
    print("Can't connect to server ($err)\n");
    exit(1);
}

my $TopDir = $bpc->TopDir();

#print Dumper(\%Conf);

# check if host exists

my $host_info = $bpc->HostInfoRead( $host );
print Dumper($host_info, $bpc->HostInfoRead( 'localhost' ));
die "host '$host' is not found, please add it to config/hosts configuration file\n" unless ($host_info->{$host});

# create restore host configuration

my $restore_path = "$Conf{InstallDir}/$Conf{GzipTempDir}/${host}-restore.tar.gz";

my $conf_restore = <<'_END_OF_CONF_';

$Conf{XferMethod} = 'tar';
$Conf{TarShareName} = '__share__';

$Conf{TarFullArgs} = 'echo "full backups are not supported in restore!" ; exit 1';
$Conf{TarIncrArgs} = '';

# fake ping when restoring
$Conf{PingCmd} = '$pingPath -c 1 localhost',
$Conf{ClientNameAlias} = 'localhost';

$Conf{TarClientCmd} = 'zcat __restore_path__';

1;

_END_OF_CONF_

$conf_restore =~ s/__restore_path__/$restore_path/gs;
$conf_restore =~ s/__share__/$share/gs;

my $config_file = "$bpc->{TopDir}/conf/${host}.pl";

open(my $host_fh, '>', $config_file) || die "can't open $config_file: $!";
print $host_fh $conf_restore || die "can't write configuration in $config_file: $!";
close($host_fh) || die "can't close $config_file: $!";

warn "written config:\n$conf_restore\n";

sub restore_increment {
        my $path = shift || die "need path!";

        if ($path !~ m/\.tar\.gz$/i) {
                print "skipping $path, not .tar.gz increment\n";
                return;
        }

        print "working on $path\n";

        if (-e $restore_path) {
                unlink $restore_path || die "can't remove $restore_path: $!\n";
        }
        symlink $path, $restore_path || die "can't create link $path -> $restore_path: $!\n";

        my $user = $host_info->{$host}->{user} || die "can't get user for host $host";

        $bpc->ServerMesg("log User $user started recovery from increment $path");

        my @backups = $bpc->BackupInfoRead( $host );

        my $full = 1;
        foreach my $b (@backups) {
                $full = 0 if ($b->{type} eq 'full');
        }

        my $r = $bpc->ServerMesg("backup $host $host $user $full");
        print "backup ", $full ? 'full' : 'incremental', " --> $r";
        die $r if ($r =~ m/^error/);

        # Status_backup_in_progress
        # Status_idle

        my ($state,$last_state) = ('','x');

        while ($state ne 'Status_idle') {
                my $s = $bpc->ServerMesg("status hosts");
                my %Status;
                {
                        eval "$s";
                }
                $state = $Status{restore}->{state};

                die $state if ($state =~ m/^error/);

                if ($state ne $last_state) {
                        print "\n$state"; #, Dumper($Status{restore});
                } else {
                        print ".";
                }
                $last_state = $state;
                sleep 1;
        }
        print "\n";
}

# now, start restore

foreach my $restore_inc (@ARGV) {

        if (-d $restore_inc) {

                find({ wanted => sub {
                        restore_increment( $File::Find::name );
                }, follow => 0 }, $restore_inc);

        } elsif (-f $restore_inc) {
                restore_increment( $restore_inc );
        } else {
                warn "skipped: $restore_inc, not file or directory\n";
        }

}

#unlink $config_file || die "can't remove $config_file: $!";
1	dpavlin	333	#!/usr/bin/perl -w
2
3	dpavlin	342	use strict;
4
5	dpavlin	340	=head1 NAME
6	dpavlin	333
7	dpavlin	340	BackupPC_recover_from_increments
8	dpavlin	333
9	dpavlin	340	=head1 DESCRIPTION
10
11			quick hack to create BackupPC pool out of increments
12
13			=head1 SYNOPSYS
14
15			BackupPC_recover_from_increments /restore/from/directory/ [/path/to/increment/to/restore.tar.gz ... ]
16
17			=head1 HISTORY
18
19			2006-02-07 Dobrica Pavlinusic <dpavlin@rot13.org>
20
21			=cut
22
23	dpavlin	333	use File::Find;
24			use Data::Dumper;
25
26			use lib "/data/backuppc/lib";
27			use BackupPC::Lib;
28
29	dpavlin	342	my $host = 'restore';
30	dpavlin	349	my $share = '/etc';
31	dpavlin	342
32	dpavlin	333	# connect to BackupPC_server
33
34			die("BackupPC::Lib->new failed\n") if ( !(my $bpc = BackupPC::Lib->new) );
35	dpavlin	340	my %Conf = $bpc->Conf();
36	dpavlin	333
37			$bpc->ChildInit();
38
39			my $err = $bpc->ServerConnect($Conf{ServerHost}, $Conf{ServerPort});
40			if ( $err ) {
41			print("Can't connect to server ($err)\n");
42			exit(1);
43			}
44
45	dpavlin	340	my $TopDir = $bpc->TopDir();
46	dpavlin	333
47	dpavlin	343	#print Dumper(\%Conf);
48	dpavlin	340
49	dpavlin	342	# check if host exists
50
51	dpavlin	343	my $host_info = $bpc->HostInfoRead( $host );
52	dpavlin	344	print Dumper($host_info, $bpc->HostInfoRead( 'localhost' ));
53			die "host '$host' is not found, please add it to config/hosts configuration file\n" unless ($host_info->{$host});
54	dpavlin	342
55	dpavlin	340	# create restore host configuration
56
57	dpavlin	342	my $restore_path = "$Conf{InstallDir}/$Conf{GzipTempDir}/${host}-restore.tar.gz";
58	dpavlin	340
59			my $conf_restore = <<'_END_OF_CONF_';
60
61			$Conf{XferMethod} = 'tar';
62	dpavlin	349	$Conf{TarShareName} = '__share__';
63	dpavlin	340
64			$Conf{TarFullArgs} = 'echo "full backups are not supported in restore!" ; exit 1';
65			$Conf{TarIncrArgs} = '';
66
67			# fake ping when restoring
68			$Conf{PingCmd} = '$pingPath -c 1 localhost',
69	dpavlin	345	$Conf{ClientNameAlias} = 'localhost';
70	dpavlin	340
71			$Conf{TarClientCmd} = 'zcat __restore_path__';
72
73			1;
74
75			_END_OF_CONF_
76
77			$conf_restore =~ s/__restore_path__/$restore_path/gs;
78	dpavlin	349	$conf_restore =~ s/__share__/$share/gs;
79	dpavlin	340
80	dpavlin	342	my $config_file = "$bpc->{TopDir}/conf/${host}.pl";
81	dpavlin	340
82			open(my $host_fh, '>', $config_file) \|\| die "can't open $config_file: $!";
83			print $host_fh $conf_restore \|\| die "can't write configuration in $config_file: $!";
84			close($host_fh) \|\| die "can't close $config_file: $!";
85
86			warn "written config:\n$conf_restore\n";
87
88			sub restore_increment {
89			my $path = shift \|\| die "need path!";
90
91	dpavlin	347	if ($path !~ m/\.tar\.gz$/i) {
92			print "skipping $path, not .tar.gz increment\n";
93			return;
94			}
95
96	dpavlin	333	print "working on $path\n";
97
98			if (-e $restore_path) {
99			unlink $restore_path \|\| die "can't remove $restore_path: $!\n";
100			}
101	dpavlin	346	symlink $path, $restore_path \|\| die "can't create link $path -> $restore_path: $!\n";
102	dpavlin	333
103	dpavlin	344	my $user = $host_info->{$host}->{user} \|\| die "can't get user for host $host";
104	dpavlin	333
105	dpavlin	344	$bpc->ServerMesg("log User $user started recovery from increment $path");
106
107	dpavlin	348	my @backups = $bpc->BackupInfoRead( $host );
108
109			my $full = 1;
110			foreach my $b (@backups) {
111			$full = 0 if ($b->{type} eq 'full');
112			}
113
114	dpavlin	344	my $r = $bpc->ServerMesg("backup $host $host $user $full");
115	dpavlin	348	print "backup ", $full ? 'full' : 'incremental', " --> $r";
116	dpavlin	342	die $r if ($r =~ m/^error/);
117	dpavlin	333
118			# Status_backup_in_progress
119			# Status_idle
120
121	dpavlin	340	my ($state,$last_state) = ('','x');
122	dpavlin	333
123			while ($state ne 'Status_idle') {
124			my $s = $bpc->ServerMesg("status hosts");
125			my %Status;
126			{
127			eval "$s";
128			}
129			$state = $Status{restore}->{state};
130	dpavlin	342
131			die $state if ($state =~ m/^error/);
132
133	dpavlin	340	if ($state ne $last_state) {
134			print "\n$state"; #, Dumper($Status{restore});
135			} else {
136			print ".";
137			}
138			$last_state = $state;
139	dpavlin	333	sleep 1;
140			}
141	dpavlin	340	print "\n";
142	dpavlin	333	}
143
144	dpavlin	340	# now, start restore
145	dpavlin	333
146	dpavlin	340	foreach my $restore_inc (@ARGV) {
147
148			if (-d $restore_inc) {
149
150			find({ wanted => sub {
151			restore_increment( $File::Find::name );
152			}, follow => 0 }, $restore_inc);
153
154	dpavlin	347	} elsif (-f $restore_inc) {
155	dpavlin	340	restore_increment( $restore_inc );
156			} else {
157	dpavlin	347	warn "skipped: $restore_inc, not file or directory\n";
158	dpavlin	340	}
159
160			}
161
162			#unlink $config_file \|\| die "can't remove $config_file: $!";