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#!/usr/bin/perl -w |
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use strict; |
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=head1 NAME |
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BackupPC_recover_from_increments |
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=head1 DESCRIPTION |
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quick hack to create BackupPC pool out of increments |
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=head1 SYNOPSYS |
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BackupPC_recover_from_increments /restore/from/directory/ [/path/to/increment/to/restore.tar.gz ... ] |
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=head1 HISTORY |
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2006-02-07 Dobrica Pavlinusic <dpavlin@rot13.org> |
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=cut |
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use File::Find; |
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use File::Path; |
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use Data::Dumper; |
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use lib "/data/backuppc/lib"; |
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use BackupPC::Lib; |
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my $host = 'restore'; |
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my $share = '/etc'; |
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# this option will cleanup tar dump before import of each increment |
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# WARNING: this will create increments which contain only new files, not |
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# state of share in that particular moment! (it's fast, though) |
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my $cleanup_before_increment = 0; |
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# this option will probably create wrong increments, but it's here for |
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# testing and comparison. In short, don't use it! |
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my $restore_via_temp_dir = 1; |
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|
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# connect to BackupPC_server |
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my $bpc = BackupPC::Lib->new(undef, undef, 1) || die; |
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my %Conf = $bpc->Conf(); |
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$bpc->ChildInit(); |
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my $err = $bpc->ServerConnect($Conf{ServerHost}, $Conf{ServerPort}); |
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if ( $err ) { |
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print("Can't connect to server ($err)\n"); |
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exit(1); |
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} |
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my $TopDir = $bpc->TopDir(); |
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#print Dumper(\%Conf); |
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# check if host exists |
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my $host_info = $bpc->HostInfoRead( $host ); |
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#print Dumper($host_info, $bpc->HostInfoRead( 'localhost' )); |
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die "host '$host' is not found, please add it to config/hosts configuration file\n" unless ($host_info->{$host}); |
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# take care of temporary directory for increments |
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my $inc_tmp_dir = $Conf{IncrementTempDir} || die "need working directory in IncrementTempDir\n"; |
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sub cleanup_inc_temp_dir { |
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rmtree($inc_tmp_dir) if (-e $inc_tmp_dir); |
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mkpath($inc_tmp_dir); |
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} |
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print "# using $inc_tmp_dir for increment scratch space"; |
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cleanup_inc_temp_dir() if (! $cleanup_before_increment); |
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my $restore_path = "$Conf{InstallDir}/$Conf{GzipTempDir}/${host}-restore.tar.gz"; |
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# create restore host configuration |
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my $conf_restore = <<'_END_OF_CONF_'; |
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$Conf{XferMethod} = 'tar'; |
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$Conf{TarShareName} = '__share__'; |
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# disable ping |
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$Conf{PingCmd} = ''; |
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# work-around for Backup aborted because of CorrectHostCheck |
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$Conf{FixedIPNetBiosNameCheck} = 0; |
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$Conf{NmbLookupCmd} = ''; |
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$Conf{ClientNameAlias} = 'localhost'; |
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#$Conf{TarIncrArgs} = ''; |
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#$Conf{ClientTimeout} = 600; |
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_END_OF_CONF_ |
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$conf_restore .= <<'_END_OF_CONF_' if (! $restore_via_temp_dir); |
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#$Conf{TarClientCmd} = ''; |
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#$Conf{TarFullArgs} = 'gzip -cdv __restore_path__'; |
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# force BackupPC_tarExtract to produce output of tar -c -v -f - --totals |
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# so that we can just pipe tar into it! |
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$Conf{tarExtractEmulateTotals} = 1; |
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$Conf{TarClientCmd} = 'zcat __restore_path__'; |
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_END_OF_CONF_ |
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$conf_restore .= <<'_END_OF_CONF_' if ($restore_via_temp_dir); |
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$Conf{TarClientCmd} = '$tarPath -c -v -f - -C __inc_tmp_dir__ --totals'; |
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_END_OF_CONF_ |
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$conf_restore =~ s/__share__/$share/gs; |
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$conf_restore =~ s/__inc_tmp_dir__/$inc_tmp_dir/gs; |
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$conf_restore =~ s/__restore_path__/$restore_path/gs; |
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$conf_restore .= "\n1;\n"; |
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my $config_file = "$bpc->{TopDir}/conf/${host}.pl"; |
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open(my $host_fh, '>', $config_file) || die "can't open $config_file: $!"; |
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print $host_fh $conf_restore || die "can't write configuration in $config_file: $!"; |
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close($host_fh) || die "can't close $config_file: $!"; |
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warn "written config:\n$conf_restore\n"; |
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sub restore_increments { |
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foreach my $path (@_) { |
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next unless ($path); # skip 0 element which is undef |
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print "extracting $path\n"; |
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my $cmd = "cd $inc_tmp_dir && tar xfz $path"; |
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system($cmd) == 0 or die "can't execute: $cmd -- $?\n"; |
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} |
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# print "using $path to create increment\n"; |
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# |
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# if (-e $restore_path) { |
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# unlink $restore_path || die "can't remove $restore_path: $!\n"; |
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# } |
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# symlink $path, $restore_path || die "can't create link $path -> $restore_path: $!\n"; |
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print "starting import into BackupPC pool\n"; |
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my $user = $host_info->{$host}->{user} || die "can't get user for host $host"; |
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my @backups = $bpc->BackupInfoRead( $host ); |
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my $full = 1; |
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foreach my $b (@backups) { |
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$full = 0 if ($b->{type} eq 'full'); |
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} |
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my $r = $bpc->ServerMesg("backup $host $host $user $full"); |
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print "backup ", $full ? 'full' : 'incremental', " --> $r"; |
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die $r if ($r =~ m/^error/); |
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# Status_backup_in_progress |
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# Status_idle |
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my ($state,$last_state) = ('','x'); |
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while ($state ne 'Status_idle') { |
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my $s = $bpc->ServerMesg("status hosts"); |
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my %Status; |
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{ |
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eval "$s"; |
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} |
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$state = $Status{restore}->{state}; |
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die $state if ($state =~ m/^error/); |
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if ($state ne $last_state) { |
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print "\n$state"; #, Dumper($Status{restore}); |
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} else { |
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print "."; |
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} |
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$last_state = $state; |
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sleep 1; |
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} |
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print "\n"; |
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} |
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# now, start restore |
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my $increments; |
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foreach my $restore_inc (@ARGV) { |
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sub extract_filename { |
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my $path = shift || die "no path?"; |
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if ($path =~ m#^(.*)/(\w+)_(\w+)_(\d+)\.tar\.gz$#) { |
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my ($path,$host,$share,$num) = ($1,$2,$3,$4); |
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$increments->{$host}->{$share}->{$num}->[1] = "${path}/${host}_${share}_${num}.tar.gz"; |
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} elsif ($path =~ m#^(.*)/(\w+)_(\w+)_(\d+)/(\d+)\.tar.gz$#) { |
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my ($path,$host,$share,$num,$part) = ($1,$2,$3,$4,$5); |
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$increments->{$host}->{$share}->{$num}->[$part] = "${path}/${host}_${share}_${num}/${part}.tar.gz"; |
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} else { |
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print "# skipped: $path\n"; |
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} |
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} |
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if (-d $restore_inc) { |
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find({ wanted => sub { |
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extract_filename( $File::Find::name ); |
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}, follow => 0 }, $restore_inc); |
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} elsif (-f $restore_inc) { |
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extract_filename( $restore_inc ); |
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} else { |
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warn "skipped: $restore_inc, not file or directory\n"; |
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} |
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} |
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print Dumper($increments); |
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cleanup_inc_temp_dir(); |
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foreach my $host (sort keys %{ $increments }) { |
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foreach my $share (sort keys %{ $increments->{$host} }) { |
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foreach my $num (sort keys %{ $increments->{$host}->{$share} }) { |
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print "# about to restore $host $share $num\n"; |
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my @parts = @{ $increments->{$host}->{$share}->{$num} }; |
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my $msg = "started recovery of ${host}:${share}#${num} with " . $#parts . " parts"; |
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print "LOG: $msg\n"; |
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$bpc->ServerMesg("log $msg"); |
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restore_increments( @parts ); |
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} |
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} |
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} |
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#unlink $config_file || die "can't remove $config_file: $!"; |
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rmtree($inc_tmp_dir) if (-e $inc_tmp_dir); |
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