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btrbk: add "--wipe" command line option

pull/204/head
Axel Burri 2017-09-28 14:02:06 +02:00
parent 5bdc3e527b
commit 2e974c1f4f
3 changed files with 19 additions and 4 deletions
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1
ChangeLog
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@ -8,6 +8,7 @@ btrbk-current
* Add "snapshot" command (close #150). * Add "snapshot" command (close #150).
* Add "prune" command. * Add "prune" command.
* Add "--preserve-snapshots" and "--preserve-backups" options. * Add "--preserve-snapshots" and "--preserve-backups" options.
* Add "--wipe" command line option (close #173).
* Change raw backup format (sidecar file instead of uuid in file). * Change raw backup format (sidecar file instead of uuid in file).
* Honor target_preserve for raw targets (delete raw targets). * Honor target_preserve for raw targets (delete raw targets).
* Add symmetric encryption for raw targets (close #157). * Add symmetric encryption for raw targets (close #157).

14
btrbk
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@ -302,6 +302,7 @@ sub HELP_MESSAGE
print STDERR " -p, --preserve preserve all (do not delete anything)\n"; print STDERR " -p, --preserve preserve all (do not delete anything)\n";
print STDERR " --preserve-snapshots preserve snapshots (do not delete snapshots)\n"; print STDERR " --preserve-snapshots preserve snapshots (do not delete snapshots)\n";
print STDERR " --preserve-backups preserve backups (do not delete backups)\n"; print STDERR " --preserve-backups preserve backups (do not delete backups)\n";
print STDERR " --wipe delete all but latest snapshots\n";
print STDERR " -v, --verbose be verbose (set loglevel=info)\n"; print STDERR " -v, --verbose be verbose (set loglevel=info)\n";
print STDERR " -q, --quiet be quiet (do not print backup summary)\n"; print STDERR " -q, --quiet be quiet (do not print backup summary)\n";
print STDERR " -l, --loglevel=LEVEL set logging level (warn, info, debug, trace)\n"; print STDERR " -l, --loglevel=LEVEL set logging level (warn, info, debug, trace)\n";
@ -2944,10 +2945,14 @@ sub config_key($$;@)
} }
sub config_preserve_hash($$) sub config_preserve_hash($$;@)
{ {
my $config = shift || die; my $config = shift || die;
my $prefix = shift || die; my $prefix = shift || die;
my %opts = @_;
if($opts{wipe}) {
return { dow => 'sunday', min => 'latest', min_q => 'latest' };
}
my $ret = config_key($config, $prefix . "_preserve") // {}; my $ret = config_key($config, $prefix . "_preserve") // {};
my $preserve_min = config_key($config, $prefix . "_preserve_min"); my $preserve_min = config_key($config, $prefix . "_preserve_min");
if(defined($preserve_min)) { if(defined($preserve_min)) {
@ -4147,7 +4152,7 @@ MAIN:
@tm_now = localtime($start_time); @tm_now = localtime($start_time);
my %config_override_cmdline; my %config_override_cmdline;
my ($config_cmdline, $quiet, $verbose, $preserve_snapshots, $preserve_backups, $skip_snapshots, $skip_backups, $print_schedule, $lockfile_cmdline); my ($config_cmdline, $quiet, $verbose, $preserve_snapshots, $preserve_backups, $wipe_snapshots, $skip_snapshots, $skip_backups, $print_schedule, $lockfile_cmdline);
my $resume_only_DEPRECATED; # as of btrbk-v0.26.0 my $resume_only_DEPRECATED; # as of btrbk-v0.26.0
unless(GetOptions( unless(GetOptions(
'help|h' => sub { VERSION_MESSAGE(); HELP_MESSAGE(0); exit 0; }, 'help|h' => sub { VERSION_MESSAGE(); HELP_MESSAGE(0); exit 0; },
@ -4157,6 +4162,7 @@ MAIN:
'preserve|p' => sub { $preserve_snapshots = 1, $preserve_backups = 1 }, 'preserve|p' => sub { $preserve_snapshots = 1, $preserve_backups = 1 },
'preserve-snapshots' => \$preserve_snapshots, 'preserve-snapshots' => \$preserve_snapshots,
'preserve-backups' => \$preserve_backups, 'preserve-backups' => \$preserve_backups,
'wipe' => \$wipe_snapshots,
'resume-only|r' => \$resume_only_DEPRECATED, 'resume-only|r' => \$resume_only_DEPRECATED,
'quiet|q' => \$quiet, 'quiet|q' => \$quiet,
'verbose|v' => sub { $loglevel = 2; }, 'verbose|v' => sub { $loglevel = 2; },
@ -5766,9 +5772,9 @@ MAIN:
} }
} }
else { else {
INFO "Cleaning snapshots: $sroot->{PRINT}/$snapdir_ts$snapshot_basename.*"; INFO "Cleaning snapshots" . ($wipe_snapshots ? " (wipe)" : "") . ": $sroot->{PRINT}/$snapdir_ts$snapshot_basename.*";
macro_delete($sroot, $snapdir, $snapshot_basename, $svol, macro_delete($sroot, $snapdir, $snapshot_basename, $svol,
{ preserve => config_preserve_hash($svol, "snapshot"), { preserve => config_preserve_hash($svol, "snapshot", wipe => $wipe_snapshots),
results => $schedule_results, results => $schedule_results,
result_hints => { topic => "snapshot", root_path => $sroot->{PATH} }, result_hints => { topic => "snapshot", root_path => $sroot->{PATH} },
}, },

8
doc/btrbk.1
View File

@ -80,6 +80,14 @@ Preserve all backups. Skips deletion of any backups, even if specified
in the configuration file. in the configuration file.
.RE .RE
.PP .PP
\-\-wipe
.RS 4
Ignore configured snapshot retention policy, delete all but latest
snapshots instead. All snapshots needed for incremental backup (latest
common) are also preserved. Useful if you are getting low on disk
space (ENOSPC).
.RE
.PP
\-v, \-\-verbose \-v, \-\-verbose
.RS 4 .RS 4
Verbose output (shortcut for "\-\-loglevel=info"). Verbose output (shortcut for "\-\-loglevel=info").