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#!/usr/local/bin/perl -w |
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|
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use strict; |
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use lib "__INSTALLDIR__/lib"; |
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|
| 6 |
use DBI; |
| 7 |
use BackupPC::Lib; |
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use BackupPC::View; |
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use BackupPC::Attrib qw/:all/; |
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use Data::Dumper; |
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use Time::HiRes qw/time/; |
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use POSIX qw/strftime/; |
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use Cwd qw/abs_path/; |
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use File::Which; |
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use Archive::Tar::Streamed; |
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use Algorithm::Diff; |
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use Getopt::Std; |
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use File::Slurp; |
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use File::Pid; |
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|
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=head1 NAME |
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|
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BackupPC_incPartsUpdate |
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|
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=head1 DESCRIPTION |
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|
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Create C<.tar.gz> increments on disk calling C<BackupPC_tarIncCreate>. |
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|
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Following options are supported (but all are optional): |
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|
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=over 4 |
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|
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=item -h hostname |
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|
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Update parts for just single C<hostname> |
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|
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=item -c |
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|
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Force check for tar archives which exist on disk |
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|
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=item -d |
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|
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Turn debugging output |
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|
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=back |
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|
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=cut |
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|
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my %opt; |
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getopts("cdh:", \%opt ); |
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|
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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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|
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my $pid_path = abs_path($0); |
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$pid_path =~ s/\W+/_/g; |
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|
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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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|
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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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|
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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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|
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my $bpc = BackupPC::Lib->new || die "can't create BackupPC::Lib"; |
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my %Conf = $bpc->Conf(); |
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|
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use BackupPC::SearchLib; |
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%BackupPC::SearchLib::Conf = %Conf; |
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|
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my $path = abs_path($0); |
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$path =~ s#/[^/]+$#/#; |
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my $tarIncCreate = $path .= 'BackupPC_tarIncCreate'; |
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|
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die "can't find $tarIncCreate: $!\n" unless (-x $tarIncCreate); |
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|
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my $bin; |
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foreach my $c (qw/gzip md5sum/) { |
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$bin->{$c} = which($c) || die "$0 needs $c, install it\n"; |
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} |
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|
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$|=1; |
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|
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my $start_t = time(); |
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|
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my $t_fmt = '%Y-%m-%d %H:%M:%S'; |
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|
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my $dsn = $Conf{SearchDSN} || die "Need SearchDSN in config.pl\n"; |
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my $user = $Conf{SearchUser} || ''; |
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|
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my $dbh = DBI->connect($dsn, $user, "", { RaiseError => 1, AutoCommit => 0 }); |
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|
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my $tar_dir = $Conf{InstallDir}.'/'.$Conf{GzipTempDir}; |
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|
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die "problem with $tar_dir, check GzipTempDir in configuration\n" unless (-d $tar_dir && -w $tar_dir); |
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|
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#---- subs ---- |
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|
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sub fmt_time { |
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my $t = shift || return; |
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my $out = ""; |
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my ($ss,$mm,$hh) = gmtime($t); |
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$out .= "${hh}h" if ($hh); |
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$out .= sprintf("%02d:%02d", $mm,$ss); |
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return $out; |
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} |
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|
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sub curr_time { |
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return strftime($t_fmt,localtime()); |
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} |
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|
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my $hsn_cache; |
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|
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sub get_backup_id($$$) { |
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my ($host, $share, $num) = @_; |
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|
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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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|
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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) = $sth->fetchrow_array; |
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|
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$hsn_cache->{"$host $share $num"} = $id; |
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|
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print STDERR "# $host $share $num == $id\n" if ($opt{d}); |
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|
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return $id; |
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} |
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|
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|
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sub tar_check($$$$) { |
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my ($host,$share,$num,$filename) = @_; |
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|
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my $t = time(); |
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print curr_time, " check $host:$share#$num -> $filename"; |
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|
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# 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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|
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my ($comp, $uncomp) = (0,0); |
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|
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if ($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: $line"; |
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} |
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} |
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|
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sub check_part { |
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my ($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 = $dbh->prepare(qq{ |
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select |
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id, tar_size, size, md5, items |
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from backup_parts |
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where backup_id = ? and part_nr = ? |
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}); |
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|
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$sth_md5->execute($backup_id, $part_nr); |
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|
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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 = $dbh->prepare(qq{ |
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insert into backup_parts ( |
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backup_id, |
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part_nr, |
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tar_size, |
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size, |
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md5, |
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items |
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) values (?,?,?,?,?,?) |
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}); |
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|
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$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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|
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my @tar_parts; |
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|
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if (-d "$tar_dir/$filename") { |
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print ", multi-part"; |
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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($dir); |
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closedir($dir); |
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} else { |
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push @tar_parts, "${filename}.tar.gz"; |
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} |
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|
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print " [parts: ",join(", ", @tar_parts),"]" if ($opt{d}); |
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|
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my $same = 1; |
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my @tar_files; |
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|
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my $backup_part; |
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|
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print " reading" if ($opt{d}); |
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|
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foreach my $tarfilename (@tar_parts) { |
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|
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print "\n\t- $tarfilename"; |
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|
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my $path = "$tar_dir/$tarfilename"; |
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|
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my $size = (stat( $path ))[7] || die "can't stat $path: $!"; |
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|
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if ($size > $Conf{MaxArchiveSize}) { |
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print ", part bigger than media $size > $Conf{MaxArchiveSize}\n"; |
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return 0; |
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} |
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|
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print ", $size bytes"; |
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|
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|
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open(my $fh, "gzip -cd $path |") or die "can't open $path: $!"; |
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binmode($fh); |
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my $tar = Archive::Tar::Streamed->new($fh); |
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|
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my $tar_size_inarc = 0; |
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my $items = 0; |
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|
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while(my $entry = $tar->next) { |
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push @tar_files, $entry->name; |
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$items++; |
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$tar_size_inarc += $entry->size; |
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|
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if ($tar_size_inarc > $Conf{MaxArchiveFileSize}) { |
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print ", part $tarfilename is too big $tar_size_inarc > $Conf{MaxArchiveFileSize}\n"; |
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return 0; |
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} |
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|
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} |
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|
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close($fh); |
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|
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print ", $items items"; |
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|
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if ($tar_size_inarc == 0 && $items == 0) { |
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print ", EMPTY tar\n"; |
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|
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my $backup_id = get_backup_id($host, $share, $num); |
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|
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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($backup_id); |
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|
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$dbh->commit; |
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|
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return 1; |
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} |
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|
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my $tar_size = get_gzip_size( $path ); |
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|
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# real tar size is bigger because of padding |
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if ($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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# |
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# check if md5 exists, and if not, create one |
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# |
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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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|
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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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|
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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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# |
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# finally, check if backup_parts table in database is valid |
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# |
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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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|
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# short-cut and exit; |
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return $same unless($same); |
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|
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@tar_files = sort @tar_files; |
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print "\n\t",($#tar_files + 1), " tar files"; |
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|
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my $sth = $dbh->prepare(qq{ |
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SELECT path,type |
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FROM files |
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JOIN shares on shares.id = shareid |
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JOIN hosts on hosts.id = shares.hostid |
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WHERE hosts.name = ? and shares.name = ? and backupnum = ? |
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}); |
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$sth->execute($host, $share, $num); |
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my @db_files; |
| 340 |
while( my $row = $sth->fetchrow_hashref ) { |
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|
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my $path = $row->{'path'} || die "no path?"; |
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$path =~ s#^/#./#; |
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$path .= '/' if ($row->{'type'} == BPC_FTYPE_DIR); |
| 345 |
push @db_files, $path; |
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} |
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|
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print " ",($#db_files + 1), " database files, diff"; |
| 349 |
|
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@db_files = sort @db_files; |
| 351 |
|
| 352 |
if ($#tar_files != $#db_files) { |
| 353 |
$same = 0; |
| 354 |
print " NUMBER"; |
| 355 |
} else { |
| 356 |
my $diff = Algorithm::Diff->new(\@tar_files, \@db_files); |
| 357 |
while ( $diff->Next() ) { |
| 358 |
next if $diff->Same(); |
| 359 |
$same = 0; |
| 360 |
print "< $_\n" for $diff->Items(1); |
| 361 |
print "> $_\n" for $diff->Items(2); |
| 362 |
} |
| 363 |
} |
| 364 |
|
| 365 |
print " ",($same ? 'ok' : 'DIFFERENT'), |
| 366 |
", dur: ",fmt_time(time() - $t), "\n"; |
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|
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return $same; |
| 369 |
} |
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|
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|
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#----- main |
| 373 |
|
| 374 |
my $sth = $dbh->prepare( qq{ |
| 375 |
|
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select |
| 377 |
backups.id as backup_id, |
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hosts.name as host, |
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shares.name as share, |
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backups.num as num, |
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inc_size, |
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parts |
| 383 |
from backups |
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join shares on backups.hostid = shares.hostid |
| 385 |
and shares.id = backups.shareid |
| 386 |
join hosts on shares.hostid = hosts.id |
| 387 |
where not inc_deleted |
| 388 |
order by backups.date |
| 389 |
|
| 390 |
} ); |
| 391 |
|
| 392 |
$sth->execute(); |
| 393 |
my $num_backups = $sth->rows; |
| 394 |
my $curr_backup = 1; |
| 395 |
|
| 396 |
if ($opt{h}) { |
| 397 |
warn "making increments just for host $opt{h}\n"; |
| 398 |
} |
| 399 |
|
| 400 |
while (my $row = $sth->fetchrow_hashref) { |
| 401 |
|
| 402 |
if ($opt{h} && $row->{host} ne $opt{h}) { |
| 403 |
warn "skipped $row->{host}\n" if ($debug); |
| 404 |
next; |
| 405 |
} |
| 406 |
|
| 407 |
$curr_backup++; |
| 408 |
|
| 409 |
my $tar_file = BackupPC::SearchLib::getGzipName($row->{'host'}, $row->{'share'}, $row->{'num'}); |
| 410 |
|
| 411 |
# this will return -1 if file doesn't exist |
| 412 |
my $size = BackupPC::SearchLib::get_tgz_size_by_name($tar_file); |
| 413 |
|
| 414 |
print "# size: $size backup.size: ", $row->{inc_size},"\n" if ($opt{d}); |
| 415 |
|
| 416 |
if ( $row->{'inc_size'} != -1 && $size != -1 && $row->{'inc_size'} >= $size) { |
| 417 |
if ($check) { |
| 418 |
tar_check($row->{'host'}, $row->{'share'}, $row->{'num'}, $tar_file) && next; |
| 419 |
} else { |
| 420 |
next; |
| 421 |
} |
| 422 |
} |
| 423 |
|
| 424 |
print curr_time, " creating $curr_backup/$num_backups ", $row->{'host'}, ":", $row->{'share'}, " #", $row->{'num'}, " -> $tar_file"; |
| 425 |
|
| 426 |
my $t = time(); |
| 427 |
|
| 428 |
# re-create archive? |
| 429 |
my $cmd = qq{ $tarIncCreate -h "$row->{'host'}" -s "$row->{'share'}" -n $row->{'num'} -f }; |
| 430 |
print STDERR "## $cmd\n" if ($debug); |
| 431 |
|
| 432 |
if (system($cmd) != 0) { |
| 433 |
print STDERR " FAILED"; |
| 434 |
} |
| 435 |
|
| 436 |
print ", dur: ",fmt_time(time() - $t), "\n"; |
| 437 |
|
| 438 |
$dbh->commit; |
| 439 |
|
| 440 |
} |
| 441 |
|
| 442 |
undef $sth; |
| 443 |
$dbh->disconnect; |
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