dbackup 33.2 KB
Newer Older
Nigel Kukard's avatar
Nigel Kukard committed
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
		# Loop with files in this path
		foreach my $fname (keys %{$origFileList{$path}}) {
			# Set dir
			my $file = $origFileList{$path}->{$fname};

			# Full dirname
			my $ffilename = "$dest/$path/$fname";

			# Restore attribs
			if (!chown($file->{'uid'},$file->{'gid'},$ffilename)) {
				print(STDERR "ERROR: Failed to chown(".$file->{'uid'}.",".$file->{'gid'}.") '$ffilename': $!\n");
			}
			if (!chmod($file->{'mode'},$ffilename)) {
				print(STDERR "ERROR: Failed to chmod(".$file->{'mode'}.") '$ffilename': $!\n");
			}
			if (!utime($file->{'atime'},$file->{'mtime'},$ffilename)) {
				print(STDERR "ERROR: Failed to utime(".$file->{'atime'}.",".$file->{'mtime'}.") '$ffilename': $!\n");
			}
		}
	}

	printLog("RESTORE START: $source => $dest\n");

	# This basically does our backup for us...
	find (
		{ 
			preprocess => \&restore_preprocess,
			wanted => \&restore_process,
			postprocess => \&restore_postprocess
		},
		$source
	);

	printLog("RESTORE END\n");
}


# Display log line
sub printLog {
	my $msg = shift;

	printf(STDERR "%s: %s", strftime('%F %T',localtime()), $msg);
}



# Display usage
sub displayHelp {
	# Build some strings we need
	my $systemDirStr = join (", ",@defaultSystemExcl);
	my $dataDirStr = join (", ",@defaultDataExcl);

	print(STDERR<<EOF);
Usage: $0 [args] <src> <dst>

    General Options:
      --help                             What you seeing now.

    Backing Options:
      --backup|-b                        Backup src to dst.
      --compress=<xz|bz2|gz|none>        Compression method to use defaults
                                         to using xz, or bzip2 if xz unavail.

      --exclude-system                   Exclude system paths from backup.
      --exclude-system-dir=dir           Exclude an additioanl directory. Look
                                         below for default list.
      --exclude-system-path=path         Exclude another system path. This
                                         defaults to / and this option will
                                         override that.
      --exclude-data                     Additionally exclude all data dirs
                                         listed below.
      --exclude-data-dir=dir             Exclude an additional directory.

1074
1075
      --exclude-files=pcre               PCRE to exclude files from backup.

Nigel Kukard's avatar
Nigel Kukard committed
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
    Restore Options:
      --restore|-r                       Restore src to dst.
      --tar-keep-newer                   Do not overwrite newer files.
      --tar-keep-old-files               Don't replace existing files.


Builtins:
---------
    system-dirs:
      $systemDirStr

    data-dirs:
      $dataDirStr
EOF
} 


#
# LIBRARY
#

sub loadStateFile {
		my ($statefile,$key,$fileList,$dirList,$pathAttribs) = @_;


		# Read in backup state file, we do it here because we may not have a backup file
		# to restore
		my $gz = gzopen($statefile,"rb") 
				or die "FATAL ERROR: Failed to open '$statefile': $!";
		# Read in file list
		my $line;
		while ($gz->gzreadline($line) > 0) {
			chomp($line);
			# Pull out array of items
			my @aline = split(/\0/,$line);
			my $type = shift(@aline);
			# Check if its defined
			if (defined($type)) {
				# If its a file...
				if ($type eq "f") {
					my ($ename,$size,$ctime,$atime,$mtime,$uid,$gid,$mode) = @aline;
					my $name = decode_base64($ename);
					# Setup our hash
					$fileList->{$key}->{$name}->{'size'} = $size;
					$fileList->{$key}->{$name}->{'ctime'} = $ctime;
					$fileList->{$key}->{$name}->{'atime'} = $atime;
					$fileList->{$key}->{$name}->{'mtime'} = $mtime;
					$fileList->{$key}->{$name}->{'uid'} = $uid;
					$fileList->{$key}->{$name}->{'gid'} = $gid;
					$fileList->{$key}->{$name}->{'mode'} = $mode;
				# If its a dir
				} elsif ($type eq "d") {
					my ($ename,$ctime,$atime,$mtime,$uid,$gid,$mode) = @aline;
					my $name = decode_base64($ename);
					# Setup our hash
					$dirList->{$key}->{$name}->{'ctime'} = $ctime;
					$dirList->{$key}->{$name}->{'atime'} = $atime;
					$dirList->{$key}->{$name}->{'mtime'} = $mtime;
					$dirList->{$key}->{$name}->{'uid'} = $uid;
					$dirList->{$key}->{$name}->{'gid'} = $gid;
					$dirList->{$key}->{$name}->{'mode'} = $mode;
				# Attribute
				} elsif ($type eq "a") {
					my ($name,$value) = @aline;
					$pathAttribs->{$key}->{$name} = $value;
				# Unknown
				} else {
					print(STDERR "ERROR: Invalid type '$type' in '$statefile'\n");
					exit 1;
				}
			}
		}
		# Close gzip file
		$gz->gzclose();
}


sub removeBackups
{
	my ($path,$format,$compression,$seqs) = @_;


	# Loop through backup sequences
	for (my $i = 0; $i <= $seqs; $i++) {

		my $tarExt;
		if ($compression eq "xz") {
			$tarExt = ".xz";
		} elsif ($compression eq "bzip2") {
			$tarExt = ".bz2";
		} elsif ($compression eq "gzip") {
			$tarExt = ".gz";
		} elsif ($compression eq "none") {
			$tarExt = "";
		}

		# Unlink backup files
		if (-f "$path/dbackup$i.tar$tarExt") {
			unlink("$path/dbackup$i.tar$tarExt")
					or die "ERROR: Failed to remove file '$path/dbackup$i.tar$tarExt': $!";
		}
		# Unlink manifest
		if (-f "$path/dbackup$i.manifest") {
			unlink("$path/dbackup$i.manifest")
					or die "ERROR: Failed to remove file '$path/dbackup$i.manifest': $!";
		}
		# Unlink index
		if (-f "$path/dbackup$i.index") {
			unlink("$path/dbackup$i.index")
					or die "ERROR: Failed to remove file '$path/dbackup$i.index': $!";
		}
		# Unlink snar
		if (-f "$path/dbackup$i.snar") {
			unlink("$path/dbackup$i.snar")
					or die "ERROR: Failed to remove file '$path/dbackup$i.snar': $!";
		}

	}
}

1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
sub toArray
{
	my $param = shift;

	if (ref $param eq "ARRAY") {
		return $param;
	} else {
		return [$param];
	}
}
Nigel Kukard's avatar
Nigel Kukard committed
1206
1207

# vim: ts=4