7 BackupPC_recover_from_increments
11 quick hack to create BackupPC pool out of increments
15 BackupPC_recover_from_increments /restore/from/directory/ [/path/to/increment/to/restore.tar.gz ... ]
19 2006-02-07 Dobrica Pavlinusic <dpavlin@rot13.org>
27 use lib "/data/backuppc/lib";
33 # this option will cleanup tar dump before import of each increment
34 # WARNING: this will create increments which contain only new files, not
35 # state of share in that particular moment! (it's fast, though)
36 my $cleanup_before_increment = 0;
38 # this option will probably create wrong increments, but it's here for
39 # testing and comparison. In short, don't use it!
40 my $restore_via_temp_dir = 1;
42 # connect to BackupPC_server
44 my $bpc = BackupPC::Lib->new(undef, undef, 1) || die;
45 my %Conf = $bpc->Conf();
49 my $err = $bpc->ServerConnect($Conf{ServerHost}, $Conf{ServerPort});
51 print("Can't connect to server ($err)\n");
55 my $TopDir = $bpc->TopDir();
57 #print Dumper(\%Conf);
59 # check if host exists
61 my $host_info = $bpc->HostInfoRead( $host );
62 #print Dumper($host_info, $bpc->HostInfoRead( 'localhost' ));
63 die "host '$host' is not found, please add it to config/hosts configuration file\n" unless ($host_info->{$host});
65 # take care of temporary directory for increments
67 my $inc_tmp_dir = $Conf{IncrementTempDir} || die "need working directory in IncrementTempDir\n";
69 sub cleanup_inc_temp_dir {
70 rmtree($inc_tmp_dir) if (-e $inc_tmp_dir);
74 print "# using $inc_tmp_dir for increment scratch space";
75 cleanup_inc_temp_dir() if (! $cleanup_before_increment);
77 my $restore_path = "$Conf{InstallDir}/$Conf{GzipTempDir}/${host}-restore.tar.gz";
79 # create restore host configuration
81 my $conf_restore = <<'_END_OF_CONF_';
83 $Conf{XferMethod} = 'tar';
84 $Conf{TarShareName} = '__share__';
88 # work-around for Backup aborted because of CorrectHostCheck
89 $Conf{FixedIPNetBiosNameCheck} = 0;
90 $Conf{NmbLookupCmd} = '';
91 $Conf{ClientNameAlias} = 'localhost';
93 #$Conf{TarIncrArgs} = '';
94 #$Conf{ClientTimeout} = 600;
98 $conf_restore .= <<'_END_OF_CONF_' if (! $restore_via_temp_dir);
100 #$Conf{TarClientCmd} = '';
101 #$Conf{TarFullArgs} = 'gzip -cdv __restore_path__';
103 # force BackupPC_tarExtract to produce output of tar -c -v -f - --totals
104 # so that we can just pipe tar into it!
105 $Conf{tarExtractEmulateTotals} = 1;
106 $Conf{TarClientCmd} = 'zcat __restore_path__';
110 $conf_restore .= <<'_END_OF_CONF_' if ($restore_via_temp_dir);
112 $Conf{TarClientCmd} = '$tarPath -c -v -f - -C __inc_tmp_dir__ --totals';
116 $conf_restore =~ s/__share__/$share/gs;
117 $conf_restore =~ s/__inc_tmp_dir__/$inc_tmp_dir/gs;
118 $conf_restore =~ s/__restore_path__/$restore_path/gs;
120 $conf_restore .= "\n1;\n";
122 my $config_file = "$bpc->{TopDir}/conf/${host}.pl";
124 open(my $host_fh, '>', $config_file) || die "can't open $config_file: $!";
125 print $host_fh $conf_restore || die "can't write configuration in $config_file: $!";
126 close($host_fh) || die "can't close $config_file: $!";
128 warn "written config:\n$conf_restore\n";
130 sub restore_increment {
131 my $path = shift || die "need path!";
133 if ($path !~ m/\.tar\.gz$/i) {
134 print "# skipping $path, not .tar.gz increment\n";
138 if ($restore_via_temp_dir) {
140 print "restoring $path (extracting to create increment)\n";
142 cleanup_inc_temp_dir() if ($cleanup_before_increment);
144 my $cmd = "cd $inc_tmp_dir && tar xfz $path";
145 system($cmd) == 0 or die "can't execute: $cmd -- $?\n";
149 print "using $path to create increment\n";
151 if (-e $restore_path) {
152 unlink $restore_path || die "can't remove $restore_path: $!\n";
154 symlink $path, $restore_path || die "can't create link $path -> $restore_path: $!\n";
159 print "starting import into BackupPC pool\n";
161 my $user = $host_info->{$host}->{user} || die "can't get user for host $host";
163 $bpc->ServerMesg("log User $user started recovery from increment $path");
165 my @backups = $bpc->BackupInfoRead( $host );
168 foreach my $b (@backups) {
169 $full = 0 if ($b->{type} eq 'full');
172 my $r = $bpc->ServerMesg("backup $host $host $user $full");
173 print "backup ", $full ? 'full' : 'incremental', " --> $r";
174 die $r if ($r =~ m/^error/);
176 # Status_backup_in_progress
179 my ($state,$last_state) = ('','x');
181 while ($state ne 'Status_idle') {
182 my $s = $bpc->ServerMesg("status hosts");
187 $state = $Status{restore}->{state};
189 die $state if ($state =~ m/^error/);
191 if ($state ne $last_state) {
192 print "\n$state"; #, Dumper($Status{restore});
196 $last_state = $state;
204 foreach my $restore_inc (@ARGV) {
206 if (-d $restore_inc) {
208 find({ wanted => sub {
209 restore_increment( $File::Find::name );
210 }, follow => 0 }, $restore_inc);
212 } elsif (-f $restore_inc) {
213 restore_increment( $restore_inc );
215 warn "skipped: $restore_inc, not file or directory\n";
220 #unlink $config_file || die "can't remove $config_file: $!";
222 rmtree($inc_tmp_dir) if (-e $inc_tmp_dir);