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dpavlin |
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#============================================================= -*-perl-*- |
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# |
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# BackupPC::Xfer::Rsync package |
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# |
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# DESCRIPTION |
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# |
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# This library defines a BackupPC::Xfer::Rsync class for managing |
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# the rsync-based transport of backup data from the client. |
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# |
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# AUTHOR |
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# Craig Barratt <cbarratt@users.sourceforge.net> |
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# |
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# COPYRIGHT |
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# Copyright (C) 2002-2003 Craig Barratt |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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#======================================================================== |
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# |
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dpavlin |
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# Version 2.1.2, released 5 Sep 2005. |
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dpavlin |
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# |
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# See http://backuppc.sourceforge.net. |
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# |
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#======================================================================== |
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package BackupPC::Xfer::Rsync; |
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use strict; |
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use BackupPC::View; |
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use BackupPC::Xfer::RsyncFileIO; |
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use vars qw( $RsyncLibOK $RsyncLibErr ); |
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BEGIN { |
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eval "use File::RsyncP;"; |
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if ( $@ ) { |
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# |
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# Rsync module doesn't exist. |
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# |
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$RsyncLibOK = 0; |
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$RsyncLibErr = "File::RsyncP module doesn't exist"; |
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} else { |
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# |
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# Note: also update configure.pl when this version number is changed! |
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# |
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dpavlin |
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if ( $File::RsyncP::VERSION < 0.52 ) { |
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dpavlin |
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$RsyncLibOK = 0; |
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dpavlin |
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$RsyncLibErr = "File::RsyncP module version" |
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. " ($File::RsyncP::VERSION) too old: need 0.52"; |
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dpavlin |
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} else { |
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$RsyncLibOK = 1; |
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} |
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} |
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}; |
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sub new |
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{ |
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my($class, $bpc, $args) = @_; |
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return if ( !$RsyncLibOK ); |
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$args ||= {}; |
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my $t = bless { |
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bpc => $bpc, |
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conf => { $bpc->Conf }, |
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host => "", |
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hostIP => "", |
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shareName => "", |
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badFiles => [], |
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# |
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# Various stats |
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# |
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byteCnt => 0, |
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fileCnt => 0, |
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xferErrCnt => 0, |
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xferBadShareCnt => 0, |
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xferBadFileCnt => 0, |
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xferOK => 0, |
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# |
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# User's args |
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# |
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%$args, |
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}, $class; |
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return $t; |
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} |
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sub args |
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{ |
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my($t, $args) = @_; |
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foreach my $arg ( keys(%$args) ) { |
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$t->{$arg} = $args->{$arg}; |
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} |
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} |
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sub useTar |
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{ |
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return 0; |
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} |
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sub start |
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{ |
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my($t) = @_; |
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my $bpc = $t->{bpc}; |
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my $conf = $t->{conf}; |
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my(@fileList, $rsyncClientCmd, $rsyncArgs, $logMsg, |
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$incrDate, $argList, $fioArgs); |
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# |
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# We add a slash to the share name we pass to rsync |
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# |
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($t->{shareNameSlash} = "$t->{shareName}/") =~ s{//+$}{/}; |
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if ( $t->{type} eq "restore" ) { |
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$rsyncClientCmd = $conf->{RsyncClientRestoreCmd}; |
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$rsyncArgs = $conf->{RsyncRestoreArgs}; |
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my $remoteDir = "$t->{shareName}/$t->{pathHdrDest}"; |
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$remoteDir =~ s{//+}{/}g; |
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$argList = ['--server', @$rsyncArgs, '.', $remoteDir]; |
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$fioArgs = { |
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client => $t->{bkupSrcHost}, |
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share => $t->{bkupSrcShare}, |
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viewNum => $t->{bkupSrcNum}, |
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fileList => $t->{fileList}, |
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}; |
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$logMsg = "restore started below directory $t->{shareName}" |
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. " to host $t->{host}"; |
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} else { |
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# |
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# Turn $conf->{BackupFilesOnly} and $conf->{BackupFilesExclude} |
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# into a hash of arrays of files, and $conf->{RsyncShareName} |
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# to an array |
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# |
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$bpc->backupFileConfFix($conf, "RsyncShareName"); |
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if ( defined($conf->{BackupFilesOnly}{$t->{shareName}}) ) { |
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my(@inc, @exc, %incDone, %excDone); |
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foreach my $file ( @{$conf->{BackupFilesOnly}{$t->{shareName}}} ) { |
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# |
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# If the user wants to just include /home/craig, then |
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# we need to do create include/exclude pairs at |
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# each level: |
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# --include /home --exclude /* |
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# --include /home/craig --exclude /home/* |
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# |
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# It's more complex if the user wants to include multiple |
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# deep paths. For example, if they want /home/craig and |
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# /var/log, then we need this mouthfull: |
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# --include /home --include /var --exclude /* |
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# --include /home/craig --exclude /home/* |
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# --include /var/log --exclude /var/* |
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# |
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# To make this easier we do all the includes first and all |
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# of the excludes at the end (hopefully they commute). |
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# |
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$file =~ s{/$}{}; |
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$file = "/$file"; |
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$file =~ s{//+}{/}g; |
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if ( $file eq "/" ) { |
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# |
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# This is a special case: if the user specifies |
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# "/" then just include it and don't exclude "/*". |
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# |
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push(@inc, $file) if ( !$incDone{$file} ); |
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next; |
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} |
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my $f = ""; |
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while ( $file =~ m{^/([^/]*)(.*)} ) { |
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my $elt = $1; |
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$file = $2; |
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if ( $file eq "/" ) { |
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# |
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# preserve a tailing slash |
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# |
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$file = ""; |
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$elt = "$elt/"; |
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} |
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push(@exc, "$f/*") if ( !$excDone{"$f/*"} ); |
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$excDone{"$f/*"} = 1; |
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$f = "$f/$elt"; |
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push(@inc, $f) if ( !$incDone{$f} ); |
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$incDone{$f} = 1; |
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} |
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} |
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foreach my $file ( @inc ) { |
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push(@fileList, "--include=$file"); |
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} |
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foreach my $file ( @exc ) { |
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push(@fileList, "--exclude=$file"); |
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} |
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} |
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if ( defined($conf->{BackupFilesExclude}{$t->{shareName}}) ) { |
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foreach my $file ( @{$conf->{BackupFilesExclude}{$t->{shareName}}} ) |
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{ |
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# |
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# just append additional exclude lists onto the end |
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# |
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push(@fileList, "--exclude=$file"); |
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} |
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} |
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if ( $t->{type} eq "full" ) { |
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if ( $t->{partialNum} ) { |
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$logMsg = "full backup started for directory $t->{shareName};" |
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. " updating partial $t->{partialNum}"; |
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} else { |
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$logMsg = "full backup started for directory $t->{shareName}"; |
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} |
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} else { |
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$incrDate = $bpc->timeStamp($t->{lastFull} - 3600, 1); |
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$logMsg = "incr backup started back to $incrDate for directory" |
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. " $t->{shareName}"; |
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} |
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# |
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# A full dump is implemented with --ignore-times: this causes all |
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# files to be checksummed, even if the attributes are the same. |
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# That way all the file contents are checked, but you get all |
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# the efficiencies of rsync: only files deltas need to be |
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# transferred, even though it is a full dump. |
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# |
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$rsyncArgs = $conf->{RsyncArgs}; |
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$rsyncArgs = [@$rsyncArgs, @fileList] if ( @fileList ); |
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$rsyncArgs = [@$rsyncArgs, "--ignore-times"] |
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if ( $t->{type} eq "full" ); |
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$rsyncClientCmd = $conf->{RsyncClientCmd}; |
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$argList = ['--server', '--sender', @$rsyncArgs, |
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'.', $t->{shareNameSlash}]; |
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$fioArgs = { |
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client => $t->{client}, |
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share => $t->{shareName}, |
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viewNum => $t->{lastFullBkupNum}, |
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partialNum => $t->{partialNum}, |
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}; |
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} |
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# |
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# Merge variables into $rsyncClientCmd |
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# |
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my $args = { |
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host => $t->{host}, |
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hostIP => $t->{hostIP}, |
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client => $t->{client}, |
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shareName => $t->{shareName}, |
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shareNameSlash => $t->{shareNameSlash}, |
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rsyncPath => $conf->{RsyncClientPath}, |
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sshPath => $conf->{SshPath}, |
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argList => $argList, |
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}; |
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$rsyncClientCmd = $bpc->cmdVarSubstitute($rsyncClientCmd, $args); |
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# |
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# Create the Rsync object, and tell it to use our own File::RsyncP::FileIO |
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# module, which handles all the special BackupPC file storage |
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# (compression, mangling, hardlinks, special files, attributes etc). |
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# |
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$t->{rsyncClientCmd} = $rsyncClientCmd; |
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$t->{rs} = File::RsyncP->new({ |
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logLevel => $t->{logLevel} || $conf->{RsyncLogLevel}, |
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rsyncCmd => sub { |
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$bpc->verbose(0); |
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$bpc->cmdExecOrEval($rsyncClientCmd, $args); |
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}, |
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rsyncCmdType => "full", |
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rsyncArgs => $rsyncArgs, |
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timeout => $conf->{ClientTimeout}, |
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doPartial => defined($t->{partialNum}) ? 1 : undef, |
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logHandler => |
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sub { |
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my($str) = @_; |
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$str .= "\n"; |
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$t->{XferLOG}->write(\$str); |
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if ( $str =~ /^Remote\[1\]: read errors mapping "(.*)"/ ) { |
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# |
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# Files with read errors (eg: region locked files |
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# on WinXX) are filled with 0 by rsync. Remember |
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# them and delete them later. |
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# |
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my $badFile = $1; |
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$badFile =~ s/^\/+//; |
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push(@{$t->{badFiles}}, { |
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share => $t->{shareName}, |
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file => $badFile |
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}); |
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} |
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}, |
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pidHandler => sub { |
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$t->{pidHandler}(@_); |
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}, |
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fio => BackupPC::Xfer::RsyncFileIO->new({ |
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xfer => $t, |
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bpc => $t->{bpc}, |
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conf => $t->{conf}, |
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backups => $t->{backups}, |
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logLevel => $t->{logLevel} |
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|| $conf->{RsyncLogLevel}, |
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logHandler => sub { |
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my($str) = @_; |
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$str .= "\n"; |
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$t->{XferLOG}->write(\$str); |
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}, |
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cacheCheckProb => $conf->{RsyncCsumCacheVerifyProb}, |
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%$fioArgs, |
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}), |
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}); |
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delete($t->{_errStr}); |
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return $logMsg; |
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} |
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sub run |
| 326 |
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{ |
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my($t) = @_; |
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my $rs = $t->{rs}; |
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my $conf = $t->{conf}; |
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my($remoteSend, $remoteDir, $remoteDirDaemon); |
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alarm($conf->{ClientTimeout}); |
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if ( $t->{type} eq "restore" ) { |
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$remoteSend = 0; |
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($remoteDir = "$t->{shareName}/$t->{pathHdrDest}") =~ s{//+}{/}g; |
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($remoteDirDaemon = "$t->{shareName}/$t->{pathHdrDest}") =~ s{//+}{/}g; |
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$remoteDirDaemon = $t->{shareNameSlash} |
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if ( $t->{pathHdrDest} eq "" |
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|| $t->{pathHdrDest} eq "/" ); |
| 340 |
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} else { |
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$remoteSend = 1; |
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$remoteDir = $t->{shareNameSlash}; |
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$remoteDirDaemon = "."; |
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} |
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if ( $t->{XferMethod} eq "rsync" ) { |
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# |
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# Run rsync command |
| 348 |
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# |
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my $str = "Running: " |
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. $t->{bpc}->execCmd2ShellCmd(@{$t->{rsyncClientCmd}}) |
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. "\n"; |
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$t->{XferLOG}->write(\$str); |
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$rs->remoteStart($remoteSend, $remoteDir); |
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} else { |
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# |
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# Connect to the rsync server |
| 357 |
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# |
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if ( defined(my $err = $rs->serverConnect($t->{hostIP}, |
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$conf->{RsyncdClientPort})) ) { |
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$t->{hostError} = $err; |
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my $str = "Error connecting to rsync daemon at $t->{hostIP}" |
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. ":$conf->{RsyncdClientPort}: $err\n"; |
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$t->{XferLOG}->write(\$str); |
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return; |
| 365 |
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} |
| 366 |
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# |
| 367 |
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# Pass module name, and follow it with a slash if it already |
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# contains a slash; otherwise just keep the plain module name. |
| 369 |
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# |
| 370 |
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my $module = $t->{shareName}; |
| 371 |
|
|
$module = $t->{shareNameSlash} if ( $module =~ /\// ); |
| 372 |
|
|
if ( defined(my $err = $rs->serverService($module, |
| 373 |
|
|
$conf->{RsyncdUserName}, |
| 374 |
|
|
$conf->{RsyncdPasswd}, |
| 375 |
|
|
$conf->{RsyncdAuthRequired})) ) { |
| 376 |
|
|
my $str = "Error connecting to module $module at $t->{hostIP}" |
| 377 |
|
|
. ":$conf->{RsyncdClientPort}: $err\n"; |
| 378 |
|
|
$t->{XferLOG}->write(\$str); |
| 379 |
|
|
$t->{hostError} = $err; |
| 380 |
|
|
return; |
| 381 |
|
|
} |
| 382 |
|
|
$rs->serverStart($remoteSend, $remoteDirDaemon); |
| 383 |
|
|
} |
| 384 |
|
|
my $error = $rs->go($t->{shareNameSlash}); |
| 385 |
|
|
$rs->serverClose(); |
| 386 |
|
|
|
| 387 |
|
|
# |
| 388 |
|
|
# TODO: generate sensible stats |
| 389 |
|
|
# |
| 390 |
|
|
# $rs->{stats}{totalWritten} |
| 391 |
|
|
# $rs->{stats}{totalSize} |
| 392 |
|
|
# |
| 393 |
|
|
my $stats = $rs->statsFinal; |
| 394 |
|
|
if ( !defined($error) && defined($stats) ) { |
| 395 |
|
|
$t->{xferOK} = 1; |
| 396 |
|
|
} else { |
| 397 |
|
|
$t->{xferOK} = 0; |
| 398 |
|
|
} |
| 399 |
|
|
$t->{xferErrCnt} = $stats->{remoteErrCnt} |
| 400 |
|
|
+ $stats->{childStats}{errorCnt} |
| 401 |
|
|
+ $stats->{parentStats}{errorCnt}; |
| 402 |
|
|
$t->{byteCnt} = $stats->{childStats}{TotalFileSize} |
| 403 |
|
|
+ $stats->{parentStats}{TotalFileSize}; |
| 404 |
|
|
$t->{fileCnt} = $stats->{childStats}{TotalFileCnt} |
| 405 |
|
|
+ $stats->{parentStats}{TotalFileCnt}; |
| 406 |
|
|
my $str = "Done: $t->{fileCnt} files, $t->{byteCnt} bytes\n"; |
| 407 |
|
|
$t->{XferLOG}->write(\$str); |
| 408 |
|
|
# |
| 409 |
|
|
# TODO: get error count, and call fio to get stats... |
| 410 |
|
|
# |
| 411 |
|
|
$t->{hostError} = $error if ( defined($error) ); |
| 412 |
|
|
|
| 413 |
|
|
if ( $t->{type} eq "restore" ) { |
| 414 |
|
|
return ( |
| 415 |
|
|
$t->{fileCnt}, |
| 416 |
|
|
$t->{byteCnt}, |
| 417 |
|
|
0, |
| 418 |
|
|
0 |
| 419 |
|
|
); |
| 420 |
|
|
} else { |
| 421 |
|
|
return ( |
| 422 |
|
|
0, |
| 423 |
|
|
$stats->{childStats}{ExistFileCnt} |
| 424 |
|
|
+ $stats->{parentStats}{ExistFileCnt}, |
| 425 |
|
|
$stats->{childStats}{ExistFileSize} |
| 426 |
|
|
+ $stats->{parentStats}{ExistFileSize}, |
| 427 |
|
|
$stats->{childStats}{ExistFileCompSize} |
| 428 |
|
|
+ $stats->{parentStats}{ExistFileCompSize}, |
| 429 |
|
|
$stats->{childStats}{TotalFileCnt} |
| 430 |
|
|
+ $stats->{parentStats}{TotalFileCnt}, |
| 431 |
|
|
$stats->{childStats}{TotalFileSize} |
| 432 |
|
|
+ $stats->{parentStats}{TotalFileSize}, |
| 433 |
|
|
); |
| 434 |
|
|
} |
| 435 |
|
|
} |
| 436 |
|
|
|
| 437 |
|
|
sub abort |
| 438 |
|
|
{ |
| 439 |
|
|
my($t, $reason) = @_; |
| 440 |
|
|
my $rs = $t->{rs}; |
| 441 |
|
|
|
| 442 |
|
|
$rs->abort($reason); |
| 443 |
|
|
return 1; |
| 444 |
|
|
} |
| 445 |
|
|
|
| 446 |
|
|
sub setSelectMask |
| 447 |
|
|
{ |
| 448 |
|
|
my($t, $FDreadRef) = @_; |
| 449 |
|
|
} |
| 450 |
|
|
|
| 451 |
|
|
sub errStr |
| 452 |
|
|
{ |
| 453 |
|
|
my($t) = @_; |
| 454 |
|
|
|
| 455 |
|
|
return $RsyncLibErr if ( !defined($t) || ref($t) ne "HASH" ); |
| 456 |
|
|
return $t->{_errStr}; |
| 457 |
|
|
} |
| 458 |
|
|
|
| 459 |
|
|
sub xferPid |
| 460 |
|
|
{ |
| 461 |
|
|
my($t) = @_; |
| 462 |
|
|
|
| 463 |
|
|
return (); |
| 464 |
|
|
} |
| 465 |
|
|
|
| 466 |
|
|
sub logMsg |
| 467 |
|
|
{ |
| 468 |
|
|
my($t, $msg) = @_; |
| 469 |
|
|
|
| 470 |
|
|
push(@{$t->{_logMsg}}, $msg); |
| 471 |
|
|
} |
| 472 |
|
|
|
| 473 |
|
|
sub logMsgGet |
| 474 |
|
|
{ |
| 475 |
|
|
my($t) = @_; |
| 476 |
|
|
|
| 477 |
|
|
return shift(@{$t->{_logMsg}}); |
| 478 |
|
|
} |
| 479 |
|
|
|
| 480 |
|
|
# |
| 481 |
|
|
# Returns a hash ref giving various status information about |
| 482 |
|
|
# the transfer. |
| 483 |
|
|
# |
| 484 |
|
|
sub getStats |
| 485 |
|
|
{ |
| 486 |
|
|
my($t) = @_; |
| 487 |
|
|
|
| 488 |
|
|
return { map { $_ => $t->{$_} } |
| 489 |
|
|
qw(byteCnt fileCnt xferErrCnt xferBadShareCnt xferBadFileCnt |
| 490 |
|
|
xferOK hostAbort hostError lastOutputLine) |
| 491 |
|
|
}; |
| 492 |
|
|
} |
| 493 |
|
|
|
| 494 |
|
|
sub getBadFiles |
| 495 |
|
|
{ |
| 496 |
|
|
my($t) = @_; |
| 497 |
|
|
|
| 498 |
|
|
return @{$t->{badFiles}}; |
| 499 |
|
|
} |
| 500 |
|
|
|
| 501 |
|
|
1; |
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