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btrbk: show aggregate "size" and "used" for "usage" action

pull/135/head
Axel Burri 2016-12-11 15:35:00 +01:00
parent da849b37ae
commit b69e9ebf34
3 changed files with 25 additions and 9 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
btrbk-current
* Show aggregate "size" and "used" for "usage" action (close #119).
btrbk-0.24.0 btrbk-0.24.0
* MIGRATION * MIGRATION

23
btrbk
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@ -46,7 +46,7 @@ use Carp qw(confess);
use Getopt::Long qw(GetOptions); use Getopt::Long qw(GetOptions);
use Time::Local qw( timelocal timegm timegm_nocheck ); use Time::Local qw( timelocal timegm timegm_nocheck );
our $VERSION = '0.24.0'; our $VERSION = '0.24.1-dev';
our $AUTHOR = 'Axel Burri <axel@tty0.ch>'; our $AUTHOR = 'Axel Burri <axel@tty0.ch>';
our $PROJECT_HOME = '<http://digint.ch/btrbk/>'; our $PROJECT_HOME = '<http://digint.ch/btrbk/>';
@ -193,9 +193,9 @@ my %table_formats = (
}, },
usage => { table => [ qw( host path size used free ) ], usage => { table => [ qw( host path size used free ) ],
long => [ qw( type host path size device_allocated device_unallocated device_missing used free free_min data_ratio metadata_ratio used global_reserve global_reserve_used ) ], long => [ qw( type host path size used device_size device_allocated device_unallocated device_missing device_used free free_min data_ratio metadata_ratio global_reserve global_reserve_used ) ],
raw => [ qw( type host path size device_allocated device_unallocated device_missing used free free_min data_ratio metadata_ratio used global_reserve global_reserve_used ) ], raw => [ qw( type host path size used device_size device_allocated device_unallocated device_missing device_used free free_min data_ratio metadata_ratio global_reserve global_reserve_used ) ],
RALIGN => { size=>1, device_allocated=>1, device_unallocated=>1, device_missing=>1, used=>1, free=>1, free_min=>1, data_ratio=>1, metadata_ratio=>1, used=>1, global_reserve=>1, global_reserve_used=>1 }, RALIGN => { size=>1, used=>1, device_size=>1, device_allocated=>1, device_unallocated=>1, device_missing=>1, device_used=>1, free=>1, free_min=>1, data_ratio=>1, metadata_ratio=>1, global_reserve=>1, global_reserve_used=>1 },
}, },
transaction => { table => [ qw( type status target_host target_subvol source_host source_subvol parent_subvol ) ], transaction => { table => [ qw( type status target_host target_subvol source_host source_subvol parent_subvol ) ],
@ -745,7 +745,7 @@ sub btrfs_filesystem_usage($)
my %detail; my %detail;
foreach (split("\n", $ret)) { foreach (split("\n", $ret)) {
if(/^\s+Device size:\s+(\S+)/) { if(/^\s+Device size:\s+(\S+)/) {
$detail{size} = $1; $detail{device_size} = $1;
} }
elsif(/^\s+Device allocated:\s+(\S+)/) { elsif(/^\s+Device allocated:\s+(\S+)/) {
$detail{device_allocated} = $1; $detail{device_allocated} = $1;
@ -757,7 +757,7 @@ sub btrfs_filesystem_usage($)
$detail{device_missing} = $1; $detail{device_missing} = $1;
} }
elsif(/^\s+Used:\s+(\S+)/) { elsif(/^\s+Used:\s+(\S+)/) {
$detail{used} = $1; $detail{device_used} = $1;
} }
elsif(/^\s+Free \(estimated\):\s+(\S+)\s+\(min: (\S+)\)/) { elsif(/^\s+Free \(estimated\):\s+(\S+)\s+\(min: (\S+)\)/) {
$detail{free} = $1; $detail{free} = $1;
@ -781,6 +781,17 @@ sub btrfs_filesystem_usage($)
} }
} }
DEBUG "Parsed " . scalar(keys %detail) . " filesystem usage detail items: $vol->{PRINT}"; DEBUG "Parsed " . scalar(keys %detail) . " filesystem usage detail items: $vol->{PRINT}";
# calculate aggregate size / usage
if($detail{data_ratio} =~ /^[0-9]+\.[0-9]+$/) {
if($detail{device_size} =~ /^([0-9]+\.[0-9]+)(.*)/) {
$detail{size} = sprintf('%.2f%s', $1 / $detail{data_ratio}, $2);
}
if($detail{device_used} =~ /^([0-9]+\.[0-9]+)(.*)/) {
$detail{used} = sprintf('%.2f%s', $1 / $detail{data_ratio}, $2);
}
}
TRACE(Data::Dumper->Dump([\%detail], ["btrfs_filesystem_usage($vol->{URL})"])) if($do_dumper); TRACE(Data::Dumper->Dump([\%detail], ["btrfs_filesystem_usage($vol->{URL})"])) if($do_dumper);
return \%detail; return \%detail;
} }

7
doc/btrbk.1
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@ -254,9 +254,10 @@ not being set on a target (backup) subvolume.
.B usage .B usage
[filter...] [filter...]
.RS 4 .RS 4
Print filesystem usage information for all source/target Print filesystem usage information for all source/target volumes,
volumes. Optionally filtered by [filter...] arguments (see \fIFILTER optionally filtered by [filter...] arguments (see \fIFILTER
STATEMENTS\fR below). STATEMENTS\fR below). Note that the "free" value is an estimate of the
amount of data that can still be written to the file system.
.RE .RE
.PP .PP
.B origin .B origin