mirror of
https://github.com/pgbackrest/pgbackrest.git
synced 2024-12-14 10:13:05 +02:00
1371 lines
45 KiB
Perl
1371 lines
45 KiB
Perl
####################################################################################################################################
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# FILE MODULE
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####################################################################################################################################
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package BackRest::File;
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use threads;
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use strict;
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use warnings;
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use Carp;
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use Moose;
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use Net::OpenSSH;
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use IPC::Open3;
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use File::Basename;
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use File::Copy qw(cp);
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use Digest::SHA;
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use File::stat;
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use Fcntl ':mode';
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use IO::Compress::Gzip qw(gzip $GzipError);
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use IO::Uncompress::Gunzip qw(gunzip $GunzipError);
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use IO::String;
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use lib dirname($0) . "/../lib";
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use BackRest::Exception;
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use BackRest::Utility;
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use BackRest::Remote;
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use Exporter qw(import);
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our @EXPORT = qw(PATH_ABSOLUTE PATH_DB PATH_DB_ABSOLUTE PATH_BACKUP PATH_BACKUP_ABSOLUTE
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PATH_BACKUP_CLUSTERPATH_BACKUP_TMP PATH_BACKUP_ARCHIVE
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COMMAND_ERR_FILE_MISSING COMMAND_ERR_FILE_READ COMMAND_ERR_FILE_MOVE COMMAND_ERR_FILE_TYPE
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COMMAND_ERR_LINK_READ COMMAND_ERR_PATH_MISSING COMMAND_ERR_PATH_CREATE COMMAND_ERR_PARAM
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PIPE_STDIN PIPE_STDOUT PIPE_STDERR
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OP_FILE_LIST OP_FILE_EXISTS OP_FILE_HASH OP_FILE_REMOVE OP_FILE_MANIFEST OP_FILE_COMPRESS
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OP_FILE_MOVE OP_FILE_COPY OP_FILE_COPY_OUT OP_FILE_COPY_IN OP_FILE_PATH_CREATE);
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# Extension and permissions
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has strCompressExtension => (is => 'ro', default => 'gz');
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has strDefaultPathPermission => (is => 'bare', default => '0750');
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has strDefaultFilePermission => (is => 'ro', default => '0640');
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# Command strings
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has strCommand => (is => 'bare');
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# Module variables
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has strRemote => (is => 'bare'); # Remote type (db or backup)
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has oRemote => (is => 'bare'); # Remote object
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has strBackupPath => (is => 'bare'); # Backup base path
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has strBackupClusterPath => (is => 'bare'); # Backup cluster path
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# Process flags
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has strStanza => (is => 'bare');
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has iThreadIdx => (is => 'bare');
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####################################################################################################################################
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# COMMAND Error Constants
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####################################################################################################################################
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use constant
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{
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COMMAND_ERR_FILE_MISSING => 1,
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COMMAND_ERR_FILE_READ => 2,
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COMMAND_ERR_FILE_MOVE => 3,
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COMMAND_ERR_FILE_TYPE => 4,
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COMMAND_ERR_LINK_READ => 5,
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COMMAND_ERR_PATH_MISSING => 6,
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COMMAND_ERR_PATH_CREATE => 7,
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COMMAND_ERR_PATH_READ => 8
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};
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####################################################################################################################################
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# PATH_GET Constants
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####################################################################################################################################
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use constant
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{
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PATH_ABSOLUTE => 'absolute',
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PATH_DB => 'db',
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PATH_DB_ABSOLUTE => 'db:absolute',
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PATH_BACKUP => 'backup',
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PATH_BACKUP_ABSOLUTE => 'backup:absolute',
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PATH_BACKUP_CLUSTER => 'backup:cluster',
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PATH_BACKUP_TMP => 'backup:tmp',
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PATH_BACKUP_ARCHIVE => 'backup:archive'
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};
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####################################################################################################################################
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# File copy block size constant
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####################################################################################################################################
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use constant
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{
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BLOCK_SIZE => 8192
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};
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####################################################################################################################################
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# STD Pipe Constants
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####################################################################################################################################
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use constant
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{
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PIPE_STDIN => "<STDIN>",
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PIPE_STDOUT => "<STDOUT>",
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PIPE_STDERR => "<STDERR>"
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};
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####################################################################################################################################
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# Remote Types
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####################################################################################################################################
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use constant
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{
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REMOTE_DB => PATH_DB,
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REMOTE_BACKUP => PATH_BACKUP
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};
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####################################################################################################################################
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# Operation constants
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####################################################################################################################################
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use constant
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{
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OP_FILE_LIST => "File->list",
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OP_FILE_EXISTS => "File->exists",
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OP_FILE_HASH => "File->hash",
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OP_FILE_REMOVE => "File->remove",
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OP_FILE_MANIFEST => "File->manifest",
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OP_FILE_COMPRESS => "File->compress",
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OP_FILE_MOVE => "File->move",
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OP_FILE_COPY => "File->copy",
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OP_FILE_COPY_OUT => "File->copy_out",
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OP_FILE_COPY_IN => "File->copy_in",
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OP_FILE_PATH_CREATE => "File->path_create"
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};
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####################################################################################################################################
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# CONSTRUCTOR
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####################################################################################################################################
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sub BUILD
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{
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my $self = shift;
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# Make sure the backup path is defined
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if (defined($self->{strBackupPath}))
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{
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# Create the backup cluster path
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$self->{strBackupClusterPath} = $self->{strBackupPath} . "/" . $self->{strStanza};
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}
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# If remote is defined check parameters and open session
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if (defined($self->{strRemote}))
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{
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# Make sure remote is valid
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if ($self->{strRemote} ne REMOTE_DB && $self->{strRemote} ne REMOTE_BACKUP)
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{
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confess &log(ASSERT, "strRemote must be \"" . REMOTE_DB . "\" or \"" . REMOTE_BACKUP . "\"");
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}
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# Remote object must be set
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if (!defined($self->{oRemote}))
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{
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confess &log(ASSERT, "oRemote must be defined");
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}
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}
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}
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####################################################################################################################################
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# CLONE
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####################################################################################################################################
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sub clone
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{
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my $self = shift;
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my $iThreadIdx = shift;
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return pg_backrest_file->new
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(
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strCompressExtension => $self->{strCompressExtension},
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strDefaultPathPermission => $self->{strDefaultPathPermission},
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strDefaultFilePermission => $self->{strDefaultFilePermission},
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strCommand => $self->{strCommand},
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strDbUser => $self->{strDbUser},
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strDbHost => $self->{strDbHost},
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strBackupUser => $self->{strBackupUser},
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strBackupHost => $self->{strBackupHost},
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strBackupPath => $self->{strBackupPath},
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strBackupClusterPath => $self->{strBackupClusterPath},
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strStanza => $self->{strStanza},
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iThreadIdx => $iThreadIdx
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);
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}
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####################################################################################################################################
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# PATH_TYPE_GET
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####################################################################################################################################
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sub path_type_get
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{
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my $self = shift;
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my $strType = shift;
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# If absolute type
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if ($strType eq PATH_ABSOLUTE)
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{
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return PATH_ABSOLUTE;
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}
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# If db type
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elsif ($strType =~ /^db(\:.*){0,1}/)
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{
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return PATH_DB;
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}
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# Else if backup type
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elsif ($strType =~ /^backup(\:.*){0,1}/)
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{
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return PATH_BACKUP;
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}
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# Error when path type not recognized
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confess &log(ASSERT, "no known path types in '${strType}'");
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}
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####################################################################################################################################
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# PATH_GET
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####################################################################################################################################
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sub path_get
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{
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my $self = shift;
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my $strType = shift; # Base type of the path to get (PATH_DB_ABSOLUTE, PATH_BACKUP_TMP, etc)
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my $strFile = shift; # File to append to the base path (can include a path as well)
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my $bTemp = shift; # Return the temp file for this path type - only some types have temp files
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# Make sure that any absolute path starts with /, otherwise it will actually be relative
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my $bAbsolute = $strType =~ /.*absolute.*/;
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if ($bAbsolute && $strFile !~ /^\/.*/)
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{
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confess &log(ASSERT, "absolute path ${strType}:${strFile} must start with /");
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}
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# Only allow temp files for PATH_BACKUP_ARCHIVE and PATH_BACKUP_TMP and any absolute path
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$bTemp = defined($bTemp) ? $bTemp : false;
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if ($bTemp && !($strType eq PATH_BACKUP_ARCHIVE || $strType eq PATH_BACKUP_TMP || $bAbsolute))
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{
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confess &log(ASSERT, "temp file not supported on path " . $strType);
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}
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# Get absolute path
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if ($bAbsolute)
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{
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if (defined($bTemp) && $bTemp)
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{
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return $strFile . ".backrest.tmp";
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}
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return $strFile;
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}
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# Make sure the base backup path is defined (since all other path types are backup)
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if (!defined($self->{strBackupPath}))
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{
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confess &log(ASSERT, "\$strBackupPath not yet defined");
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}
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# Get base backup path
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if ($strType eq PATH_BACKUP)
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{
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return $self->{strBackupPath} . (defined($strFile) ? "/${strFile}" : "");
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}
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# Make sure the cluster is defined
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if (!defined($self->{strStanza}))
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{
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confess &log(ASSERT, "\$strStanza not yet defined");
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}
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# Get the backup tmp path
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if ($strType eq PATH_BACKUP_TMP)
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{
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my $strTempPath = "$self->{strBackupPath}/temp/$self->{strStanza}.tmp";
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if ($bTemp)
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{
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return "${strTempPath}/file.tmp" . (defined($self->{iThreadIdx}) ? ".$self->{iThreadIdx}" : "");
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}
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return "${strTempPath}" . (defined($strFile) ? "/${strFile}" : "");
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}
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# Get the backup archive path
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if ($strType eq PATH_BACKUP_ARCHIVE)
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{
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my $strArchivePath = "$self->{strBackupPath}/archive/$self->{strStanza}";
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my $strArchive;
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if ($bTemp)
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{
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return "${strArchivePath}/file.tmp" . (defined($self->{iThreadIdx}) ? ".$self->{iThreadIdx}" : "");
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}
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if (defined($strFile))
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{
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$strArchive = substr(basename($strFile), 0, 24);
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if ($strArchive !~ /^([0-F]){24}$/)
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{
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return "${strArchivePath}/${strFile}";
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}
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}
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return $strArchivePath . (defined($strArchive) ? "/" . substr($strArchive, 0, 16) : "") .
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(defined($strFile) ? "/" . $strFile : "");
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}
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if ($strType eq PATH_BACKUP_CLUSTER)
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{
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return $self->{strBackupPath} . "/backup/$self->{strStanza}" . (defined($strFile) ? "/${strFile}" : "");
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}
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# Error when path type not recognized
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confess &log(ASSERT, "no known path types in '${strType}'");
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}
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####################################################################################################################################
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# IS_REMOTE
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#
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# Determine whether the path type is remote
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####################################################################################################################################
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sub is_remote
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{
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my $self = shift;
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my $strPathType = shift;
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return defined($self->{strRemote}) && $self->path_type_get($strPathType) eq $self->{strRemote};
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}
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####################################################################################################################################
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# LINK_CREATE !!! NEEDS TO BE CONVERTED
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####################################################################################################################################
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sub link_create
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{
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my $self = shift;
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my $strSourcePathType = shift;
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my $strSourceFile = shift;
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my $strDestinationPathType = shift;
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my $strDestinationFile = shift;
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my $bHard = shift;
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my $bRelative = shift;
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my $bPathCreate = shift;
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# if bHard is not defined default to false
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$bHard = defined($bHard) ? $bHard : false;
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# if bRelative is not defined or bHard is true, default to false
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$bRelative = !defined($bRelative) || $bHard ? false : $bRelative;
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# if bPathCreate is not defined, default to true
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$bPathCreate = defined($bPathCreate) ? $bPathCreate : true;
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# Source and destination path types must be the same (both PATH_DB or both PATH_BACKUP)
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if ($self->path_type_get($strSourcePathType) ne $self->path_type_get($strDestinationPathType))
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{
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confess &log(ASSERT, "path types must be equal in link create");
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}
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# Generate source and destination files
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my $strSource = $self->path_get($strSourcePathType, $strSourceFile);
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my $strDestination = $self->path_get($strDestinationPathType, $strDestinationFile);
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# If the destination path is backup and does not exist, create it
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if ($bPathCreate && $self->path_type_get($strDestinationPathType) eq PATH_BACKUP)
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{
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$self->path_create(PATH_BACKUP_ABSOLUTE, dirname($strDestination));
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}
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unless (-e $strSource)
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{
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if (-e $strSource . ".$self->{strCompressExtension}")
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{
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$strSource .= ".$self->{strCompressExtension}";
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$strDestination .= ".$self->{strCompressExtension}";
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}
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else
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{
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# Error when a hardlink will be created on a missing file
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if ($bHard)
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{
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confess &log(ASSERT, "unable to find ${strSource}(.$self->{strCompressExtension}) for link");
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}
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}
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}
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# Generate relative path if requested
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if ($bRelative)
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{
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my $iCommonLen = common_prefix($strSource, $strDestination);
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if ($iCommonLen != 0)
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{
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$strSource = ("../" x substr($strDestination, $iCommonLen) =~ tr/\///) . substr($strSource, $iCommonLen);
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}
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}
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# Create the command
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my $strCommand = "ln" . (!$bHard ? " -s" : "") . " ${strSource} ${strDestination}";
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# Run remotely
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if ($self->is_remote($strSourcePathType))
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{
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&log(TRACE, "link_create: remote ${strSourcePathType} '${strCommand}'");
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my $oSSH = $self->remote_get($strSourcePathType);
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$oSSH->system($strCommand) or confess &log("unable to create link from ${strSource} to ${strDestination}");
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}
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# Run locally
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else
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{
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&log(TRACE, "link_create: local '${strCommand}'");
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system($strCommand) == 0 or confess &log("unable to create link from ${strSource} to ${strDestination}");
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}
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}
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####################################################################################################################################
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# MOVE
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#
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# Moves a file locally or remotely.
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####################################################################################################################################
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sub move
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{
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my $self = shift;
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my $strSourcePathType = shift;
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my $strSourceFile = shift;
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my $strDestinationPathType = shift;
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my $strDestinationFile = shift;
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my $bDestinationPathCreate = shift;
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# Set defaults
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$bDestinationPathCreate = defined($bDestinationPathCreate) ? $bDestinationPathCreate : false;
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# Set operation variables
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my $strPathOpSource = $self->path_get($strSourcePathType, $strSourceFile);
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my $strPathOpDestination = $self->path_get($strDestinationPathType, $strDestinationFile);
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# Set operation and debug strings
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my $strOperation = OP_FILE_MOVE;
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my $strDebug = "${strSourcePathType}" . (defined($strSourceFile) ? ":${strSourceFile}" : "") .
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" to ${strDestinationPathType}" . (defined($strDestinationFile) ? ":${strDestinationFile}" : "") .
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", destination_path_create = " . ($bDestinationPathCreate ? "true" : "false");
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&log(DEBUG, "${strOperation}: ${strDebug}");
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# Source and destination path types must be the same
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if ($self->path_type_get($strSourcePathType) ne $self->path_type_get($strSourcePathType))
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{
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confess &log(ASSERT, "${strDebug}: source and destination path types must be equal");
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}
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# Run remotely
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if ($self->is_remote($strSourcePathType))
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{
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confess &log(ASSERT, "${strDebug}: remote operation not supported");
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}
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# Run locally
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else
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{
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# If the destination path does not exist, create it or error out
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if (!$self->exists($strDestinationPathType, dirname($strDestinationFile)))
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{
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if ($bDestinationPathCreate)
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{
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$self->path_create($strDestinationPathType, dirname($strDestinationFile));
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}
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else
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{
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my $strError = "destination " . dirname($strPathOpDestination) . " does not exist";
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if ($strSourcePathType eq PATH_ABSOLUTE)
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{
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print $strError;
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exit (COMMAND_ERR_PATH_MISSING);
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}
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confess &log(ERROR, "${strDebug}: " . $strError);
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}
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}
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if (!rename($strPathOpSource, $strPathOpDestination))
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{
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my $strError = "${strPathOpSource} could not be moved: " . $!;
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my $iErrorCode = COMMAND_ERR_FILE_MOVE;
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if (!$self->exists($strSourcePathType, dirname($strSourceFile)))
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{
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$strError = "${strPathOpSource} does not exist";
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$iErrorCode = COMMAND_ERR_FILE_MISSING;
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}
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if ($strSourcePathType eq PATH_ABSOLUTE)
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{
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confess &log(ERROR, $strError, $iErrorCode);
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}
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confess &log(ERROR, "${strDebug}: " . $strError);
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}
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}
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}
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####################################################################################################################################
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# COMPRESS
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####################################################################################################################################
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sub compress
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{
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my $self = shift;
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my $strPathType = shift;
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my $strFile = shift;
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# Set operation variables
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my $strPathOp = $self->path_get($strPathType, $strFile);
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# Set operation and debug strings
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my $strOperation = OP_FILE_COMPRESS;
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my $strDebug = "${strPathType}:${strPathOp}";
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&log(DEBUG, "${strOperation}: ${strDebug}");
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# Run remotely
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if ($self->is_remote($strPathType))
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{
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confess &log(ASSERT, "${strDebug}: remote operation not supported");
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}
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# Run locally
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else
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{
|
|
if (!gzip($strPathOp => "${strPathOp}.gz"))
|
|
{
|
|
my $strError = "${strPathOp} could not be compressed:" . $!;
|
|
my $iErrorCode = COMMAND_ERR_FILE_READ;
|
|
|
|
if (!$self->exists($strPathType, $strFile))
|
|
{
|
|
$strError = "${strPathOp} does not exist";
|
|
$iErrorCode = COMMAND_ERR_FILE_MISSING;
|
|
}
|
|
|
|
if ($strPathType eq PATH_ABSOLUTE)
|
|
{
|
|
confess &log(ERROR, $strError, $iErrorCode);
|
|
}
|
|
|
|
confess &log(ERROR, "${strDebug}: " . $strError);
|
|
}
|
|
|
|
unlink($strPathOp)
|
|
or die &log(ERROR, "${strDebug}: unable to remove ${strPathOp}");
|
|
}
|
|
}
|
|
|
|
####################################################################################################################################
|
|
# PATH_CREATE
|
|
#
|
|
# Creates a path locally or remotely.
|
|
####################################################################################################################################
|
|
sub path_create
|
|
{
|
|
my $self = shift;
|
|
my $strPathType = shift;
|
|
my $strPath = shift;
|
|
my $strPermission = shift;
|
|
|
|
# Set operation variables
|
|
my $strPathOp = $self->path_get($strPathType, $strPath);
|
|
|
|
# Set operation and debug strings
|
|
my $strOperation = OP_FILE_PATH_CREATE;
|
|
my $strDebug = " ${strPathType}:${strPath}, permission " . (defined($strPermission) ? $strPermission : "[undef]");
|
|
&log(DEBUG, "${strOperation}: ${strDebug}");
|
|
|
|
if ($self->is_remote($strPathType))
|
|
{
|
|
# Build param hash
|
|
my %oParamHash;
|
|
|
|
$oParamHash{path} = ${strPathOp};
|
|
|
|
if (defined($strPermission))
|
|
{
|
|
$oParamHash{permission} = ${strPermission};
|
|
}
|
|
|
|
# Add remote info to debug string
|
|
my $strRemote = "remote (" . $self->{oRemote}->command_param_string(\%oParamHash) . ")";
|
|
$strDebug = "${strOperation}: ${strRemote}: ${strDebug}";
|
|
&log(TRACE, "${strOperation}: ${strRemote}");
|
|
|
|
# Execute the command
|
|
$self->{oRemote}->command_execute($strOperation, \%oParamHash, false, $strDebug);
|
|
}
|
|
else
|
|
{
|
|
# Attempt the create the directory
|
|
my $bResult;
|
|
|
|
if (defined($strPermission))
|
|
{
|
|
$bResult = mkdir($strPathOp, oct($strPermission));
|
|
}
|
|
else
|
|
{
|
|
$bResult = mkdir($strPathOp);
|
|
}
|
|
|
|
if (!$bResult)
|
|
{
|
|
# Capture the error
|
|
my $strError = "${strPath} could not be created: " . $!;
|
|
|
|
# If running on command line the return directly
|
|
if ($strPathType eq PATH_ABSOLUTE)
|
|
{
|
|
confess &log(ERROR, $strError, COMMAND_ERR_PATH_CREATE);
|
|
}
|
|
|
|
# Error the normal way
|
|
confess &log(ERROR, "${strDebug}: " . $strError, COMMAND_ERR_PATH_CREATE);
|
|
}
|
|
}
|
|
}
|
|
|
|
####################################################################################################################################
|
|
# EXISTS - Checks for the existence of a file, but does not imply that the file is readable/writeable.
|
|
#
|
|
# Return: true if file exists, false otherwise
|
|
####################################################################################################################################
|
|
sub exists
|
|
{
|
|
my $self = shift;
|
|
my $strPathType = shift;
|
|
my $strPath = shift;
|
|
|
|
# Set operation variables
|
|
my $strPathOp = $self->path_get($strPathType, $strPath);
|
|
|
|
# Set operation and debug strings
|
|
my $strOperation = OP_FILE_EXISTS;
|
|
my $strDebug = "${strPathType}:${strPathOp}";
|
|
&log(DEBUG, "${strOperation}: ${strDebug}");
|
|
|
|
# Run remotely
|
|
if ($self->is_remote($strPathType))
|
|
{
|
|
# Build param hash
|
|
my %oParamHash;
|
|
|
|
$oParamHash{path} = $strPathOp;
|
|
|
|
# Add remote info to debug string
|
|
my $strRemote = "remote (" . $self->{oRemote}->command_param_string(\%oParamHash) . ")";
|
|
$strDebug = "${strOperation}: ${strRemote}: ${strDebug}";
|
|
&log(TRACE, "${strOperation}: ${strRemote}");
|
|
|
|
# Execute the command
|
|
return $self->{oRemote}->command_execute($strOperation, \%oParamHash, true, $strDebug) eq 'Y';
|
|
}
|
|
# Run locally
|
|
else
|
|
{
|
|
# Stat the file/path to determine if it exists
|
|
my $oStat = lstat($strPathOp);
|
|
|
|
# Evaluate error
|
|
if (!defined($oStat))
|
|
{
|
|
# If the error is not entry missing, then throw error
|
|
if (!$!{ENOENT})
|
|
{
|
|
if ($strPathType eq PATH_ABSOLUTE)
|
|
{
|
|
confess &log(ERROR, $!, COMMAND_ERR_FILE_READ);
|
|
}
|
|
else
|
|
{
|
|
confess &log(ERROR, "${strDebug}: " . $!, COMMAND_ERR_FILE_READ);
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
####################################################################################################################################
|
|
# REMOVE
|
|
####################################################################################################################################
|
|
sub remove
|
|
{
|
|
my $self = shift;
|
|
my $strPathType = shift;
|
|
my $strPath = shift;
|
|
my $bTemp = shift;
|
|
my $bIgnoreMissing = shift;
|
|
|
|
# Set defaults
|
|
$bIgnoreMissing = defined($bIgnoreMissing) ? $bIgnoreMissing : true;
|
|
|
|
# Set operation variables
|
|
my $strPathOp = $self->path_get($strPathType, $strPath, $bTemp);
|
|
my $bRemoved = true;
|
|
|
|
# Set operation and debug strings
|
|
my $strOperation = OP_FILE_EXISTS;
|
|
my $strDebug = "${strPathType}:${strPathOp}";
|
|
&log(DEBUG, "${strOperation}: ${strDebug}");
|
|
|
|
# Run remotely
|
|
if ($self->is_remote($strPathType))
|
|
{
|
|
confess &log(ASSERT, "${strDebug}: remote operation not supported");
|
|
}
|
|
# Run locally
|
|
else
|
|
{
|
|
if (unlink($strPathOp) != 1)
|
|
{
|
|
$bRemoved = false;
|
|
|
|
my $strError = "${strPathOp} could not be removed: " . $!;
|
|
my $iErrorCode = COMMAND_ERR_PATH_READ;
|
|
|
|
if (!$self->exists($strPathType, $strPath))
|
|
{
|
|
$strError = "${strPathOp} does not exist";
|
|
$iErrorCode = COMMAND_ERR_PATH_MISSING;
|
|
}
|
|
|
|
if (!($iErrorCode == COMMAND_ERR_PATH_MISSING && $bIgnoreMissing))
|
|
{
|
|
if ($strPathType eq PATH_ABSOLUTE)
|
|
{
|
|
confess &log(ERROR, $strError, $iErrorCode);
|
|
}
|
|
|
|
confess &log(ERROR, "${strDebug}: " . $strError);
|
|
}
|
|
}
|
|
}
|
|
|
|
return $bRemoved;
|
|
}
|
|
|
|
####################################################################################################################################
|
|
# HASH
|
|
####################################################################################################################################
|
|
sub hash
|
|
{
|
|
my $self = shift;
|
|
my $strPathType = shift;
|
|
my $strFile = shift;
|
|
my $strHashType = shift;
|
|
|
|
# Set operation variables
|
|
my $strFileOp = $self->path_get($strPathType, $strFile);
|
|
my $strHash;
|
|
|
|
# Set operation and debug strings
|
|
my $strOperation = OP_FILE_HASH;
|
|
my $strDebug = "${strPathType}:${strFileOp}";
|
|
&log(DEBUG, "${strOperation}: ${strDebug}");
|
|
|
|
if ($self->is_remote($strPathType))
|
|
{
|
|
confess &log(ASSERT, "${strDebug}: remote operation not supported");
|
|
}
|
|
else
|
|
{
|
|
my $hFile;
|
|
|
|
if (!open($hFile, "<", $strFileOp))
|
|
{
|
|
my $strError = "${strFileOp} could not be read" . $!;
|
|
my $iErrorCode = 2;
|
|
|
|
if (!$self->exists($strPathType, $strFile))
|
|
{
|
|
$strError = "${strFileOp} does not exist";
|
|
$iErrorCode = 1;
|
|
}
|
|
|
|
if ($strPathType eq PATH_ABSOLUTE)
|
|
{
|
|
confess &log(ERROR, $strError, $iErrorCode);
|
|
}
|
|
|
|
confess &log(ERROR, "${strDebug}: " . $strError);
|
|
}
|
|
|
|
my $oSHA = Digest::SHA->new(defined($strHashType) ? $strHashType : 'sha1');
|
|
|
|
$oSHA->addfile($hFile);
|
|
|
|
close($hFile);
|
|
|
|
$strHash = $oSHA->hexdigest();
|
|
}
|
|
|
|
return $strHash;
|
|
}
|
|
|
|
####################################################################################################################################
|
|
# LIST
|
|
####################################################################################################################################
|
|
sub list
|
|
{
|
|
my $self = shift;
|
|
my $strPathType = shift;
|
|
my $strPath = shift;
|
|
my $strExpression = shift;
|
|
my $strSortOrder = shift;
|
|
|
|
# Set defaults
|
|
$strSortOrder = defined($strSortOrder) ? $strSortOrder : 'forward';
|
|
|
|
# Set operation variables
|
|
my $strPathOp = $self->path_get($strPathType, $strPath);
|
|
my @stryFileList;
|
|
|
|
# Get the root path for the file list
|
|
my $strOperation = OP_FILE_LIST;
|
|
my $strDebug = "${strPathType}:${strPathOp}" .
|
|
", expression " . (defined($strExpression) ? $strExpression : "[UNDEF]") .
|
|
", sort ${strSortOrder}";
|
|
&log(DEBUG, "${strOperation}: ${strDebug}");
|
|
|
|
# Run remotely
|
|
if ($self->is_remote($strPathType))
|
|
{
|
|
# Build param hash
|
|
my %oParamHash;
|
|
|
|
$oParamHash{path} = $strPathOp;
|
|
$oParamHash{sort_order} = $strSortOrder;
|
|
|
|
if (defined($strExpression))
|
|
{
|
|
$oParamHash{expression} = $strExpression;
|
|
}
|
|
|
|
# Add remote info to debug string
|
|
my $strRemote = "remote (" . $self->{oRemote}->command_param_string(\%oParamHash) . ")";
|
|
$strDebug = "${strOperation}: ${strRemote}: ${strDebug}";
|
|
&log(TRACE, "${strOperation}: ${strRemote}");
|
|
|
|
# Execute the command
|
|
my $strOutput = $self->{oRemote}->command_execute($strOperation, \%oParamHash, false, $strDebug);
|
|
|
|
if (defined($strOutput))
|
|
{
|
|
@stryFileList = split(/\n/, $strOutput);
|
|
}
|
|
}
|
|
# Run locally
|
|
else
|
|
{
|
|
my $hPath;
|
|
|
|
if (!opendir($hPath, $strPathOp))
|
|
{
|
|
my $strError = "${strPathOp} could not be read: " . $!;
|
|
my $iErrorCode = COMMAND_ERR_PATH_READ;
|
|
|
|
if (!$self->exists($strPathType, $strPath))
|
|
{
|
|
$strError = "${strPathOp} does not exist";
|
|
$iErrorCode = COMMAND_ERR_PATH_MISSING;
|
|
}
|
|
|
|
if ($strPathType eq PATH_ABSOLUTE)
|
|
{
|
|
confess &log(ERROR, $strError, $iErrorCode);
|
|
}
|
|
|
|
confess &log(ERROR, "${strDebug}: " . $strError);
|
|
}
|
|
|
|
@stryFileList = grep(!/^(\.)|(\.\.)$/i, readdir($hPath));
|
|
|
|
close($hPath);
|
|
|
|
if (defined($strExpression))
|
|
{
|
|
@stryFileList = grep(/$strExpression/i, @stryFileList);
|
|
}
|
|
|
|
# Reverse sort
|
|
if (defined($strSortOrder) && $strSortOrder eq "reverse")
|
|
{
|
|
@stryFileList = sort {$b cmp $a} @stryFileList;
|
|
}
|
|
# Normal sort
|
|
else
|
|
{
|
|
@stryFileList = sort @stryFileList;
|
|
}
|
|
}
|
|
|
|
# Return file list
|
|
return @stryFileList;
|
|
}
|
|
|
|
####################################################################################################################################
|
|
# MANIFEST
|
|
#
|
|
# Builds a path/file manifest starting with the base path and including all subpaths. The manifest contains all the information
|
|
# needed to perform a backup or a delta with a previous backup.
|
|
####################################################################################################################################
|
|
sub manifest
|
|
{
|
|
my $self = shift;
|
|
my $strPathType = shift;
|
|
my $strPath = shift;
|
|
my $oManifestHashRef = shift;
|
|
|
|
# Set operation variables
|
|
my $strPathOp = $self->path_get($strPathType, $strPath);
|
|
|
|
# Set operation and debug strings
|
|
my $strOperation = OP_FILE_EXISTS;
|
|
my $strDebug = "${strPathType}:${strPathOp}";
|
|
&log(DEBUG, "${strOperation}: ${strDebug}");
|
|
|
|
# Run remotely
|
|
if ($self->is_remote($strPathType))
|
|
{
|
|
confess &log(ASSERT, "${strDebug}: remote operation not supported");
|
|
}
|
|
# Run locally
|
|
else
|
|
{
|
|
manifest_recurse($strPathType, $strPathOp, undef, 0, $oManifestHashRef);
|
|
}
|
|
}
|
|
|
|
sub manifest_recurse
|
|
{
|
|
my $strPathType = shift;
|
|
my $strPathOp = shift;
|
|
my $strPathFileOp = shift;
|
|
my $iDepth = shift;
|
|
my $oManifestHashRef = shift;
|
|
|
|
my $strErrorPrefix = "File->manifest";
|
|
my $strPathRead = $strPathOp . (defined($strPathFileOp) ? "/${strPathFileOp}" : "");
|
|
my $hPath;
|
|
|
|
if (!opendir($hPath, $strPathRead))
|
|
{
|
|
my $strError = "${strPathRead} could not be read: " . $!;
|
|
my $iErrorCode = 2;
|
|
|
|
unless (-e $strPathRead)
|
|
{
|
|
$strError = "${strPathRead} does not exist";
|
|
$iErrorCode = 1;
|
|
}
|
|
|
|
if ($strPathType eq PATH_ABSOLUTE)
|
|
{
|
|
print $strError;
|
|
exit ($iErrorCode);
|
|
}
|
|
|
|
confess &log(ERROR, "${strErrorPrefix}: " . $strError);
|
|
}
|
|
|
|
my @stryFileList = grep(!/^\..$/i, readdir($hPath));
|
|
|
|
close($hPath);
|
|
|
|
foreach my $strFile (@stryFileList)
|
|
{
|
|
my $strPathFile = "${strPathRead}/$strFile";
|
|
my $bCurrentDir = $strFile eq ".";
|
|
|
|
if ($iDepth != 0)
|
|
{
|
|
if ($bCurrentDir)
|
|
{
|
|
$strFile = $strPathFileOp;
|
|
$strPathFile = $strPathRead;
|
|
}
|
|
else
|
|
{
|
|
$strFile = "${strPathFileOp}/${strFile}";
|
|
}
|
|
}
|
|
|
|
my $oStat = lstat($strPathFile);
|
|
|
|
if (!defined($oStat))
|
|
{
|
|
if (-e $strPathFile)
|
|
{
|
|
my $strError = "${strPathFile} could not be read: " . $!;
|
|
|
|
if ($strPathType eq PATH_ABSOLUTE)
|
|
{
|
|
print $strError;
|
|
exit COMMAND_ERR_FILE_READ;
|
|
}
|
|
|
|
confess &log(ERROR, "${strErrorPrefix}: " . $strError);
|
|
}
|
|
|
|
next;
|
|
}
|
|
|
|
# Check for regular file
|
|
if (S_ISREG($oStat->mode))
|
|
{
|
|
${$oManifestHashRef}{name}{"${strFile}"}{type} = "f";
|
|
|
|
# Get inode
|
|
${$oManifestHashRef}{name}{"${strFile}"}{inode} = $oStat->ino;
|
|
|
|
# Get size
|
|
${$oManifestHashRef}{name}{"${strFile}"}{size} = $oStat->size;
|
|
|
|
# Get modification time
|
|
${$oManifestHashRef}{name}{"${strFile}"}{modification_time} = $oStat->mtime;
|
|
}
|
|
# Check for directory
|
|
elsif (S_ISDIR($oStat->mode))
|
|
{
|
|
${$oManifestHashRef}{name}{"${strFile}"}{type} = "d";
|
|
}
|
|
# Check for link
|
|
elsif (S_ISLNK($oStat->mode))
|
|
{
|
|
${$oManifestHashRef}{name}{"${strFile}"}{type} = "l";
|
|
|
|
# Get link destination
|
|
${$oManifestHashRef}{name}{"${strFile}"}{link_destination} = readlink($strPathFile);
|
|
|
|
if (!defined(${$oManifestHashRef}{name}{"${strFile}"}{link_destination}))
|
|
{
|
|
if (-e $strPathFile)
|
|
{
|
|
my $strError = "${strPathFile} error reading link: " . $!;
|
|
|
|
if ($strPathType eq PATH_ABSOLUTE)
|
|
{
|
|
print $strError;
|
|
exit COMMAND_ERR_LINK_READ;
|
|
}
|
|
|
|
confess &log(ERROR, "${strErrorPrefix}: " . $strError);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
my $strError = "${strPathFile} is not of type directory, file, or link";
|
|
|
|
if ($strPathType eq PATH_ABSOLUTE)
|
|
{
|
|
print $strError;
|
|
exit COMMAND_ERR_FILE_TYPE;
|
|
}
|
|
|
|
confess &log(ERROR, "${strErrorPrefix}: " . $strError);
|
|
}
|
|
|
|
# Get user name
|
|
${$oManifestHashRef}{name}{"${strFile}"}{user} = getpwuid($oStat->uid);
|
|
|
|
# Get group name
|
|
${$oManifestHashRef}{name}{"${strFile}"}{group} = getgrgid($oStat->gid);
|
|
|
|
# Get permissions
|
|
if (${$oManifestHashRef}{name}{"${strFile}"}{type} ne "l")
|
|
{
|
|
${$oManifestHashRef}{name}{"${strFile}"}{permission} = sprintf("%04o", S_IMODE($oStat->mode));
|
|
}
|
|
|
|
# Recurse into directories
|
|
if (${$oManifestHashRef}{name}{"${strFile}"}{type} eq "d" && !$bCurrentDir)
|
|
{
|
|
manifest_recurse($strPathType, $strPathOp,
|
|
$strFile,
|
|
$iDepth + 1, $oManifestHashRef);
|
|
}
|
|
}
|
|
}
|
|
|
|
####################################################################################################################################
|
|
# COPY
|
|
#
|
|
# Copies a file from one location to another:
|
|
#
|
|
# * source and destination can be local or remote
|
|
# * wire and output compression/decompression are supported
|
|
# * intermediate temp files are used to prevent partial copies
|
|
# * modification time and permissions can be set on destination file
|
|
# * destination path can optionally be created
|
|
####################################################################################################################################
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sub copy
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{
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my $self = shift;
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my $strSourcePathType = shift;
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my $strSourceFile = shift;
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my $strDestinationPathType = shift;
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my $strDestinationFile = shift;
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my $bSourceCompressed = shift;
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my $bDestinationCompress = shift;
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my $bIgnoreMissingSource = shift;
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my $lModificationTime = shift;
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my $strPermission = shift;
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my $bPathCreate = shift;
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# Set defaults
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$bSourceCompressed = defined($bSourceCompressed) ? $bSourceCompressed : false;
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$bDestinationCompress = defined($bDestinationCompress) ? $bDestinationCompress : false;
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$bIgnoreMissingSource = defined($bIgnoreMissingSource) ? $bIgnoreMissingSource : false;
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# Set working variables
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my $bSourceRemote = $self->is_remote($strSourcePathType) || $strSourcePathType eq PIPE_STDIN;
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my $bDestinationRemote = $self->is_remote($strDestinationPathType) || $strDestinationPathType eq PIPE_STDOUT;
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my $strSourceOp = $strSourcePathType eq PIPE_STDIN ?
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$strSourcePathType : $self->path_get($strSourcePathType, $strSourceFile);
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my $strDestinationOp = $strDestinationPathType eq PIPE_STDOUT ?
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$strDestinationPathType : $self->path_get($strDestinationPathType, $strDestinationFile);
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my $strDestinationTmpOp = $strDestinationPathType eq PIPE_STDOUT ?
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undef : $self->path_get($strDestinationPathType, $strDestinationFile, true);
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# Set debug string and log
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my $strDebug = ($bSourceRemote ? " remote" : " local") . " ${strSourcePathType}" .
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(defined($strSourceFile) ? ":${strSourceFile}" : "") .
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" to" . ($bDestinationRemote ? " remote" : " local") . " ${strDestinationPathType}" .
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(defined($strDestinationFile) ? ":${strDestinationFile}" : "") .
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", source_compressed = " . ($bSourceCompressed ? "true" : "false") .
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", destination_compress = " . ($bDestinationCompress ? "true" : "false") .
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", ignore_missing_source = " . ($bIgnoreMissingSource ? "true" : "false");
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&log(DEBUG, OP_FILE_COPY . ": ${strDebug}");
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# Open the source and destination files (if needed)
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my $hSourceFile;
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my $hDestinationFile;
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if (!$bSourceRemote)
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{
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if (!open($hSourceFile, "<", $strSourceOp))
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{
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my $strError = $!;
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my $iErrorCode = COMMAND_ERR_FILE_READ;
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if ($!{ENOENT})
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{
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# $strError = 'file is missing';
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$iErrorCode = COMMAND_ERR_FILE_MISSING;
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if ($bIgnoreMissingSource && $strDestinationPathType ne PIPE_STDOUT)
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{
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return false;
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}
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}
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$strError = "cannot open source file ${strSourceOp}: " . $strError;
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if ($strSourcePathType eq PATH_ABSOLUTE)
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{
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if ($strDestinationPathType eq PIPE_STDOUT)
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{
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$self->{oRemote}->write_line(*STDOUT, "block 0");
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}
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confess &log(ERROR, $strError, $iErrorCode);
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}
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confess &log(ERROR, "${strDebug}: " . $strError, $iErrorCode);
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}
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}
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if (!$bDestinationRemote)
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{
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open($hDestinationFile, ">", $strDestinationTmpOp)
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or confess &log(ERROR, "cannot open ${strDestinationTmpOp}: " . $!);
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}
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# If source or destination are remote
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if ($bSourceRemote || $bDestinationRemote)
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{
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# Build the command and open the local file
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my $hFile;
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my %oParamHash;
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my $hIn,
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my $hOut;
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my $strRemote;
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my $strOperation;
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# If source is remote and destination is local
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if ($bSourceRemote && !$bDestinationRemote)
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{
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$hOut = $hDestinationFile;
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$strOperation = OP_FILE_COPY_OUT;
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$strRemote = 'in';
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if ($strSourcePathType eq PIPE_STDIN)
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{
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$hIn = *STDIN;
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}
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else
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{
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$oParamHash{source_file} = $strSourceOp;
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$oParamHash{source_compressed} = $bSourceCompressed;
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$hIn = $self->{oRemote}->{hOut};
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}
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}
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# Else if source is local and destination is remote
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elsif (!$bSourceRemote && $bDestinationRemote)
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{
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$hIn = $hSourceFile;
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$strOperation = OP_FILE_COPY_IN;
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$strRemote = 'out';
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if ($strDestinationPathType eq PIPE_STDOUT)
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{
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$hOut = *STDOUT;
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}
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else
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{
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$oParamHash{destination_file} = $strDestinationOp;
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$oParamHash{destination_compress} = $bDestinationCompress;
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$hOut = $self->{oRemote}->{hIn};
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}
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}
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# Else source and destination are remote
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else
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{
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$strOperation = OP_FILE_COPY;
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$oParamHash{source_file} = $strSourceOp;
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$oParamHash{source_compressed} = $bSourceCompressed;
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$oParamHash{destination_file} = $strDestinationOp;
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$oParamHash{destination_compress} = $bDestinationCompress;
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if ($bIgnoreMissingSource)
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{
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$oParamHash{ignore_missing_source} = $bIgnoreMissingSource;
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}
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}
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# Build debug string
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if (%oParamHash)
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{
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my $strRemote = "remote (" . $self->{oRemote}->command_param_string(\%oParamHash) . ")";
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$strDebug = "${strOperation}: ${strRemote}: ${strDebug}";
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&log(TRACE, "${strOperation}: ${strRemote}");
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}
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# If an operation is defined then write it
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if (%oParamHash)
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{
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$self->{oRemote}->command_write($strOperation, \%oParamHash);
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}
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# Transfer the file (skip this for copies where both sides are remote)
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if ($strOperation ne OP_FILE_COPY)
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{
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$self->{oRemote}->binary_xfer($hIn, $hOut, $strRemote, $bSourceCompressed, $bDestinationCompress);
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}
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# If this is the controlling process then wait for OK from remote
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if (%oParamHash)
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{
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# Test for an error when reading output
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my $strOutput;
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eval
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{
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$strOutput = $self->{oRemote}->output_read($strOperation eq OP_FILE_COPY, $strDebug);
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};
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# If there is an error then evaluate
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if ($@)
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{
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my $oMessage = $@;
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# We'll ignore this error if the source file was missing and missing file exception was returned
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# and bIgnoreMissingSource is set
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if ($bIgnoreMissingSource && $strRemote eq "in" && $oMessage->isa("BackRest::Exception") &&
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$oMessage->code() == COMMAND_ERR_FILE_MISSING)
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{
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close($hDestinationFile) or confess &log(ERROR, "cannot close file ${strDestinationTmpOp}");
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unlink($strDestinationTmpOp) or confess &log(ERROR, "cannot remove file ${strDestinationTmpOp}");
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return false;
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}
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# Otherwise report the error
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confess $oMessage;
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}
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# If this was a remote copy, then return the result
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if ($strOperation eq OP_FILE_COPY)
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{
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return false; #$strOutput eq 'N' ? true : false;
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}
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}
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}
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# Else this is a local operation
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else
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{
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# If the source is compressed and the destination is not then decompress
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if ($bSourceCompressed && !$bDestinationCompress)
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{
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gunzip($hSourceFile => $hDestinationFile)
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or die confess &log(ERROR, "${strDebug}: unable to uncompress: " . $GunzipError);
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}
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elsif (!$bSourceCompressed && $bDestinationCompress)
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{
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gzip($hSourceFile => $hDestinationFile)
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or die confess &log(ERROR, "${strDebug}: unable to compress: " . $GzipError);
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}
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else
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{
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cp($hSourceFile, $hDestinationFile)
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or die confess &log(ERROR, "${strDebug}: unable to copy: " . $!);
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}
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}
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# Close the source file (if open)
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if (defined($hSourceFile))
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{
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close($hSourceFile) or confess &log(ERROR, "cannot close file ${strSourceOp}");
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}
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# Close the destination file (if open)
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if (defined($hDestinationFile))
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{
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close($hDestinationFile) or confess &log(ERROR, "cannot close file ${strDestinationTmpOp}");
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}
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# Where the destination is local, set permissions, modification time, and perform move to final location
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if (!$bDestinationRemote)
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{
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# Set the file permission if required
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if (defined($strPermission))
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{
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system("chmod ${strPermission} ${strDestinationTmpOp}") == 0
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or confess &log(ERROR, "unable to set permissions for local ${strDestinationTmpOp}");
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}
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# Set the file modification time if required
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if (defined($lModificationTime))
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{
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utime($lModificationTime, $lModificationTime, $strDestinationTmpOp)
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or confess &log(ERROR, "unable to set time for local ${strDestinationTmpOp}");
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}
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# Move the file from tmp to final destination
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$self->move(PATH_ABSOLUTE, $strDestinationTmpOp, PATH_ABSOLUTE, $strDestinationOp, $bPathCreate);
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}
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return true;
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}
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no Moose;
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__PACKAGE__->meta->make_immutable;
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