mirror of https://github.com/digint/btrbk
btrbk: changed command line semantics, accepting commands
Axel Burri
parent
a5ad796aeb
commit
ff504b508f
73
btrbk
73
btrbk
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@ -54,10 +54,11 @@ our $PROJECT_HOME = '<http://www.digint.ch/btrbk>';
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my $version_info = "btrfs-backup command line client, version $VERSION";
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my $time_format = "%Y%m%d_%H%M%S";
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my $default_config = "/etc/btrbk.conf";
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my $src_snapshot_dir = "_btrbk_snap";
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my %vol_info;
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my $pretend;
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my $dryrun;
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my $verbose = 0;
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my $debug = 0;
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@ -68,16 +69,19 @@ sub VERSION_MESSAGE
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sub HELP_MESSAGE
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{
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print STDERR "usage: $0 [options] <src_root_volume> <subvol> <dest_root_volume> <subvol>\n";
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print STDERR "usage: $0 [options] <command>\n";
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print STDERR "\n";
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print STDERR "options:\n";
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print STDERR " -h, --help display this help message\n";
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print STDERR " --help display this help message\n";
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print STDERR " --version display version information\n";
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# print STDERR " -i incremental backup\n";
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print STDERR " -c config file\n";
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print STDERR " -v verbose\n";
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print STDERR " -d debug\n";
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print STDERR " -p pretend only (dryrun)\n";
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print STDERR "\n";
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print STDERR "commands:\n";
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print STDERR " info shows information\n";
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print STDERR " execute perform all backups\n";
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print STDERR " dryrun don't run btrfs commands, just show what would be executed\n";
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print STDERR "\n";
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print STDERR "For additional information, see $PROJECT_HOME\n";
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}
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@ -93,7 +97,7 @@ sub run_cmd($;$)
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my $non_destructive = shift;
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my $ret = "";
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INFO "### $cmd" unless($non_destructive);
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if($non_destructive || (not $pretend)) {
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if($non_destructive || (not $dryrun)) {
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DEBUG "### $cmd";
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$ret = `$cmd`;
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chomp($ret);
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@ -121,7 +125,7 @@ sub check_src($$)
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my $root = shift;
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my $vol = shift;
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return 0 unless(check_vol($root, $vol));
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unless($pretend)
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unless($dryrun)
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{
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my $dir = "${root}/${src_snapshot_dir}";
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unless(-d $dir) {
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@ -293,7 +297,7 @@ sub btrfs_send_receive($$;$$)
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my $cmd = "/sbin/btrfs send $parent_option $src | /sbin/btrfs receive $receive_option $dst/ 2>&1";
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my $ret = run_cmd($cmd);
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# run_cmd("/bin/sync");
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if($changelog && (not $pretend))
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if($changelog && (not $dryrun))
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{
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INFO "--- writing changelog: $changelog";
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if(open(LOGFILE, '>>', $changelog)) {
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@ -354,36 +358,47 @@ MAIN:
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$Data::Dumper::Sortkeys = 1;
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my %opts;
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getopts('hc:vdp', \%opts);
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# my $sroot = shift @ARGV;
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# my $svol = shift @ARGV;
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# my $droot = shift @ARGV;
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# my $dvol = shift @ARGV;
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getopts('c:vdp', \%opts);
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my $command = shift @ARGV;
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# assign command line options
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$pretend = $opts{p};
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$debug = $opts{d};
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$verbose = $opts{v} || $debug;
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# my $incremental = $opts{i};
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my $config = $opts{c};
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my $config = $opts{c} || $default_config;
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# check command line options
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if($opts{h} || (not $config)) {
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if($opts{h} || (not $command)) {
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VERSION_MESSAGE();
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HELP_MESSAGE(0);
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exit 0;
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}
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my $jobs = parse_config($config);
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unless($jobs) {
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ERROR "Failed to parse configuration file";
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my $action_execute;
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my $action_info;
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if(($command eq "execute") || ($command eq "dryrun")) {
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$action_execute = 1;
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$dryrun = 1 if($command eq "dryrun");
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}
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elsif($command eq "info") {
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$action_info = 1;
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}
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else {
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ERROR "Unrecognized command: $command";
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HELP_MESSAGE(0);
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exit 1;
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}
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my $postfix = '.' . strftime($time_format, localtime);
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#
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# check jobs, fill vol_info hash
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#
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my $jobs = parse_config($config);
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unless($jobs) {
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ERROR "Failed to parse configuration file";
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exit 1;
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}
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foreach my $job (@$jobs)
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{
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my $sroot = $job->{sroot} || die;
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@ -393,6 +408,21 @@ MAIN:
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}
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DEBUG(Data::Dumper->Dump([\%vol_info], ["vol_info"]));
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if($action_info)
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{
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INFO(Data::Dumper->Dump([\%vol_info], ["vol_info"]));
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foreach my $job (@$jobs)
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{
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my $sroot = $job->{sroot} || die;
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my $svol = $job->{svol} || die;
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my $droot = $job->{droot} || die;
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my $dvol = $job->{dvol} || die;
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print "$sroot/$svol\n"
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}
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}
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if($action_execute)
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{
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#
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# create snapshots
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#
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@ -404,7 +434,6 @@ MAIN:
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my $droot = $job->{droot} || die;
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my $dvol = $job->{dvol} || die;
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my $type = $job->{type} || die;
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my @job_opts = @{$job->{options}} || die;
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my $ssnap = "$src_snapshot_dir/$svol$postfix";
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if(check_vol($droot, "$dvol/$svol$postfix")) {
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@ -492,6 +521,6 @@ MAIN:
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btrfs_send_receive($snapshot, "${droot}/${dvol}", undef, $changelog);
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}
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}
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}
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}
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1;
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