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use Archive::Tar::Streamed; |
use Archive::Tar::Streamed; |
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use Algorithm::Diff; |
use Algorithm::Diff; |
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use Getopt::Std; |
use Getopt::Std; |
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use File::Slurp; |
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use File::Pid; |
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=head1 NAME |
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BackupPC_incPartsUpdate |
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=head1 DESCRIPTION |
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Create C<.tar.gz> increments on disk calling C<BackupPC_tarIncCreate>. |
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Following options are supported (but all are optional): |
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=over 4 |
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=item -h hostname |
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Update parts for just single C<hostname> |
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=item -c |
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Force check for tar archives which exist on disk |
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=item -d |
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Turn debugging output |
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=back |
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=cut |
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my %opt; |
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getopts("cdh:", \%opt ); |
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my $debug = $opt{d}; |
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my $check = $opt{c} && print STDERR "NOTICE: tar archive check forced\n"; |
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my $pid_path = abs_path($0); |
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$pid_path =~ s/\W+/_/g; |
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my $pidfile = new File::Pid({ |
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file => "/tmp/$pid_path", |
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}); |
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if (my $pid = $pidfile->running ) { |
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die "$0 already running: $pid\n"; |
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} elsif ($pidfile->pid ne $$) { |
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$pidfile->remove; |
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$pidfile = new File::Pid; |
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} |
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print STDERR "$0 using pid ",$pidfile->pid," file ",$pidfile->file,"\n"; |
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$pidfile->write; |
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my $bpc = BackupPC::Lib->new || die "can't create BackupPC::Lib"; |
my $bpc = BackupPC::Lib->new || die "can't create BackupPC::Lib"; |
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my %Conf = $bpc->Conf(); |
my %Conf = $bpc->Conf(); |
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use BackupPC::SearchLib; |
use BackupPC::SearchLib; |
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%BackupPC::SearchLib::Conf = %Conf; |
%BackupPC::SearchLib::Conf = %Conf; |
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# cludge: minimum .tar.gz size |
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my $MIN_TAR_SIZE = 80; |
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my $path = abs_path($0); |
my $path = abs_path($0); |
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$path =~ s#/[^/]+$#/#; |
$path =~ s#/[^/]+$#/#; |
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my $tarIncCreate = $path .= 'BackupPC_tarIncCreate'; |
my $tarIncCreate = $path .= 'BackupPC_tarIncCreate'; |
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$bin->{$c} = which($c) || die "$0 needs $c, install it\n"; |
$bin->{$c} = which($c) || die "$0 needs $c, install it\n"; |
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} |
} |
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my %opt; |
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getopts("cd", \%opt ); |
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my $debug = $opt{d}; |
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my $check = $opt{c} && print STDERR "NOTICE: tar archive check forced\n"; |
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$|=1; |
$|=1; |
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my $start_t = time(); |
my $start_t = time(); |
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return strftime($t_fmt,localtime()); |
return strftime($t_fmt,localtime()); |
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} |
} |
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my $hsn_cache; |
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sub get_backup_id($$$) { |
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my ($host, $share, $num) = @_; |
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my $key = "$host $share $num"; |
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return $hsn_cache->{$key} if ($hsn_cache->{$key}); |
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my $sth = $dbh->prepare(qq{ |
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SELECT |
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backups.id |
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FROM backups |
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INNER JOIN shares ON backups.shareID=shares.ID |
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INNER JOIN hosts ON backups.hostID = hosts.ID |
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where hosts.name = ? and shares.name = ? and backups.num = ? |
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}); |
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$sth->execute($host, $share, $num); |
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my ($id) = $sth->fetchrow_array; |
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$hsn_cache->{"$host $share $num"} = $id; |
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print STDERR "# $host $share $num == $id\n" if ($opt{d}); |
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return $id; |
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} |
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sub tar_check($$$$) { |
sub tar_check($$$$) { |
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my ($host,$share,$num,$filename) = @_; |
my ($host,$share,$num,$filename) = @_; |
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if ($debug) { |
my $t = time(); |
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print STDERR " {{ CHECK: ${host}:${share}#${num} and $filename"; |
print curr_time, " check $host:$share#$num -> $filename"; |
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} else { |
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print " check"; |
# depending on expected returned value this is used like: |
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# my $uncompress_size = get_gzip_size('/full/path/to.gz'); |
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# my ($compress_size, $uncompress_size) = get_gzip_size('/path.gz'); |
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sub get_gzip_size($) { |
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my $filename = shift; |
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die "file $filename problem: $!" unless (-r $filename); |
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open(my $gzip, $bin->{gzip}." -l $filename |") || die "can't gzip -l $filename: $!"; |
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my $line = <$gzip>; |
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chomp($line); |
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$line = <$gzip> if ($line =~ /^\s+compressed/); |
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my ($comp, $uncomp) = (0,0); |
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if ($line =~ m/^\s+(\d+)\s+(\d+)\s+\d+\.\d+/) { |
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if (wantarray) { |
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return [ $1, $2 ]; |
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} else { |
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return $2; |
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} |
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} else { |
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die "can't find size in line: $line"; |
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} |
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} |
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sub check_part { |
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my ($host, $share, $num, $part_nr, $tar_size, $size, $md5, $items) = @_; |
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my $backup_id = get_backup_id($host, $share, $num); |
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my $sth_md5 = $dbh->prepare(qq{ |
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select |
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id, tar_size, size, md5, items |
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from backup_parts |
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where backup_id = ? and part_nr = ? |
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}); |
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$sth_md5->execute($backup_id, $part_nr); |
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if (my $row = $sth_md5->fetchrow_hashref) { |
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return if ( |
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$row->{tar_size} >= $tar_size && |
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$row->{size} == $size && |
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$row->{md5} eq $md5 && |
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$row->{items} == $items |
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); |
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print ", deleting invalid backup_parts $row->{id}"; |
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$dbh->do(qq{ delete from backup_parts where id = $row->{id} }); |
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} |
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print ", inserting new"; |
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my $sth_insert = $dbh->prepare(qq{ |
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insert into backup_parts ( |
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backup_id, |
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part_nr, |
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tar_size, |
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size, |
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md5, |
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items |
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) values (?,?,?,?,?,?) |
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}); |
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$sth_insert->execute($backup_id, $part_nr, $tar_size, $size, $md5, $items); |
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$dbh->commit; |
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} |
} |
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my @tar_parts; |
my @tar_parts; |
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if (-d "$tar_dir/$filename") { |
if (-d "$tar_dir/$filename") { |
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print STDERR " multi-part" if ($opt{d}); |
print ", multi-part"; |
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opendir(my $dir, "$tar_dir/$filename") || die "can't readdir $tar_dir/$filename: $!"; |
opendir(my $dir, "$tar_dir/$filename") || die "can't readdir $tar_dir/$filename: $!"; |
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@tar_parts = map { my $p = $_; $p =~ s#^#${filename}/#; $p } grep { !/^\./ && !/md5/ && -f "$tar_dir/$filename/$_" } readdir($dir); |
@tar_parts = map { my $p = $_; $p =~ s#^#${filename}/#; $p } grep { !/^\./ && !/md5/ && -f "$tar_dir/$filename/$_" } readdir($dir); |
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closedir($dir); |
closedir($dir); |
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push @tar_parts, "${filename}.tar.gz"; |
push @tar_parts, "${filename}.tar.gz"; |
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} |
} |
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print " [parts: ",join(", ", @tar_parts),"]" if ($opt{d}); |
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my $same = 1; |
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my @tar_files; |
my @tar_files; |
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print " [parts: ",join(", ", @tar_parts),"]" if ($opt{d}); |
my $backup_part; |
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print " reading"; |
print " reading" if ($opt{d}); |
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foreach my $tarfilename (@tar_parts) { |
foreach my $tarfilename (@tar_parts) { |
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print STDERR " $tarfilename" if ($debug); |
print "\n\t- $tarfilename"; |
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my $path = "$tar_dir/$tarfilename"; |
my $path = "$tar_dir/$tarfilename"; |
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my $md5 = $path; |
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$md5 =~ s/\.tar\.gz$/.md5/ || die "can't create md5 filename from $md5"; |
my $size = (stat( $path ))[7] || die "can't stat $path: $!"; |
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if (! -e $md5) { |
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print ", creating md5"; |
if ($size > $Conf{MaxArchiveSize}) { |
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system( $bin->{md5sum} . " $path > $md5") == 0 or die "can't create md5 $path: $!"; |
print ", part bigger than media $size > $Conf{MaxArchiveSize}\n"; |
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return 0; |
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} |
} |
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open(my $fh, "gzip -cd $tar_dir/$tarfilename |") or die "can't open $tar_dir/$tarfilename: $!"; |
print ", $size bytes"; |
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open(my $fh, "gzip -cd $path |") or die "can't open $path: $!"; |
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binmode($fh); |
binmode($fh); |
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my $tar = Archive::Tar::Streamed->new($fh); |
my $tar = Archive::Tar::Streamed->new($fh); |
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my $tar_size_inarc = 0; |
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my $items = 0; |
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while(my $entry = $tar->next) { |
while(my $entry = $tar->next) { |
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push @tar_files, $entry->name; |
push @tar_files, $entry->name; |
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$items++; |
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$tar_size_inarc += $entry->size; |
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if ($tar_size_inarc > $Conf{MaxArchiveFileSize}) { |
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print ", part $tarfilename is too big $tar_size_inarc > $Conf{MaxArchiveFileSize}\n"; |
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return 0; |
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} |
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} |
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close($fh); |
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print ", $items items"; |
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if ($tar_size_inarc == 0 && $items == 0) { |
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print ", EMPTY tar\n"; |
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my $backup_id = get_backup_id($host, $share, $num); |
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my $sth_inc_deleted = $dbh->prepare(qq{ |
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update backups set |
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inc_deleted = true |
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where id = ? |
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}); |
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$sth_inc_deleted->execute($backup_id); |
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$dbh->commit; |
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return 1; |
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} |
} |
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my $tar_size = get_gzip_size( $path ); |
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# real tar size is bigger because of padding |
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if ($tar_size_inarc > $tar_size) { |
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print ", size of files in tar ($tar_size_inarc) bigger than whole tar ($tar_size)!\n"; |
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return 0; |
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} |
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# |
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# check if md5 exists, and if not, create one |
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# |
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my $md5_path = $path; |
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$md5_path =~ s/\.tar\.gz$/.md5/ || die "can't create md5 filename from $md5_path"; |
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if (! -e $md5_path || -z $md5_path) { |
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print ", creating md5"; |
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system( $bin->{md5sum} . " $path > $md5_path") == 0 or die "can't create md5 $path: $!"; |
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} else { |
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## FIXME check if existing md5 is valid |
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} |
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my $md5 = read_file( $md5_path ) || die "can't read md5sum file $md5_path: $!"; |
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$md5 =~ s#\s.*$##; |
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# extract part number from filename |
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my $part_nr = 1; |
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$part_nr = $1 if ($tarfilename =~ m#/(\d+)\.tar\.gz#); |
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# |
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# finally, check if backup_parts table in database is valid |
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# |
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check_part($host, $share, $num, $part_nr, $tar_size, $size, $md5, $items); |
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} |
} |
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@tar_files = sort @tar_files; |
# short-cut and exit; |
326 |
print STDERR " ",($#tar_files + 1), " files" if ($debug); |
return $same unless($same); |
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print STDERR ", database" if ($debug); |
@tar_files = sort @tar_files; |
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print "\n\t",($#tar_files + 1), " tar files"; |
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my $sth = $dbh->prepare(qq{ |
my $sth = $dbh->prepare(qq{ |
332 |
SELECT path,type |
SELECT path,type |
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push @db_files, $path; |
push @db_files, $path; |
346 |
} |
} |
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348 |
print STDERR " ",($#db_files + 1), " files, diff" if ($debug); |
print " ",($#db_files + 1), " database files, diff"; |
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350 |
@db_files = sort @db_files; |
@db_files = sort @db_files; |
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my $same = 1; |
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352 |
if ($#tar_files != $#db_files) { |
if ($#tar_files != $#db_files) { |
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$same = 0; |
$same = 0; |
354 |
print STDERR " NUMBER" if ($debug); |
print " NUMBER"; |
355 |
} else { |
} else { |
356 |
my $diff = Algorithm::Diff->new(\@tar_files, \@db_files); |
my $diff = Algorithm::Diff->new(\@tar_files, \@db_files); |
357 |
while ( $diff->Next() ) { |
while ( $diff->Next() ) { |
362 |
} |
} |
363 |
} |
} |
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365 |
print " ",($same ? 'ok' : 'DIFFERENT'); |
print " ",($same ? 'ok' : 'DIFFERENT'), |
366 |
print STDERR " }} " if ($debug); |
", dur: ",fmt_time(time() - $t), "\n"; |
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368 |
return $same; |
return $same; |
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} |
} |
393 |
my $num_backups = $sth->rows; |
my $num_backups = $sth->rows; |
394 |
my $curr_backup = 1; |
my $curr_backup = 1; |
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if ($opt{h}) { |
397 |
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warn "making increments just for host $opt{h}\n"; |
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} |
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400 |
while (my $row = $sth->fetchrow_hashref) { |
while (my $row = $sth->fetchrow_hashref) { |
401 |
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if ($opt{h} && $row->{host} ne $opt{h}) { |
403 |
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warn "skipped $row->{host}\n" if ($debug); |
404 |
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next; |
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} |
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$curr_backup++; |
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409 |
my $tar_file = BackupPC::SearchLib::getGzipName($row->{'host'}, $row->{'share'}, $row->{'num'}); |
my $tar_file = BackupPC::SearchLib::getGzipName($row->{'host'}, $row->{'share'}, $row->{'num'}); |
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|
411 |
# this will return -1 if file doesn't exist |
# this will return -1 if file doesn't exist |
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414 |
print "# size: $size backup.size: ", $row->{inc_size},"\n" if ($opt{d}); |
print "# size: $size backup.size: ", $row->{inc_size},"\n" if ($opt{d}); |
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|
416 |
if ( $row->{'inc_size'} != -1 && $size != -1 && $row->{'inc_size'} == $size && ( $check && tar_check($row->{'host'}, $row->{'share'}, $row->{'num'}, $tar_file) || 1) ) { |
if ( $row->{'inc_size'} != -1 && $size != -1 && $row->{'inc_size'} >= $size) { |
417 |
next; |
if ($check) { |
418 |
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tar_check($row->{'host'}, $row->{'share'}, $row->{'num'}, $tar_file) && next; |
419 |
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} else { |
420 |
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next; |
421 |
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} |
422 |
} |
} |
423 |
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424 |
print curr_time, " $curr_backup/$num_backups ", $row->{'host'}, ":", $row->{'share'}, " #", $row->{'num'}, " -> $tar_file"; |
print curr_time, " creating $curr_backup/$num_backups ", $row->{'host'}, ":", $row->{'share'}, " #", $row->{'num'}, " -> $tar_file"; |
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$curr_backup++; |
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425 |
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426 |
my $t = time(); |
my $t = time(); |
427 |
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