lib/Frey/Storage.pm

package Frey::Storage;
use Moose::Role;

with 'Frey::Path';

#use YAML::Syck; # XXX doesn't play nice with Continuity
use YAML qw/LoadFile DumpFile/;

=head2 store

  $o->store( 'filename.yml', $data );

=cut

has 'storage_timestamp' => (
        is => 'rw',
        isa => 'HashRef[Int]',
        default => sub { {} },
);

sub store {
        my $self = shift;
        my ( $filename, $data ) = @_;
        $filename .= '.yml';
        $self->mkbasepath( $filename );
        DumpFile( $filename, $data );
}

=head2 load

  $data = $o->load( 'filename.yml' );

=cut

sub load {
        my ( $self, $filename ) = @_;
        $filename .= '.yml';
        return if ! -e $filename;
        $self->storage_timestamp->{ $filename } = _path_time( $filename );
        LoadFile( $filename );
}

=head2 reload

Reload file if on-disk copy have changed

  my $new_data = $o->reload( 'filename.yml' );

=cut

sub _path_time {
        (stat( $_[0] ))[9]; # mtime
}

sub reload {
        my ( $self, $filename ) = @_;
        my $path = $filename . '.yml';
        return if defined $self->storage_timestamp->{ $path } && $self->storage_timestamp->{ $path } == _path_time( $path );
        warn "# reload $filename" if $self->debug;
        $self->load( $filename );
}

1;
1	dpavlin	151	package Frey::Storage;
2			use Moose::Role;
3
4	dpavlin	224	with 'Frey::Path';
5
6	dpavlin	153	#use YAML::Syck; # XXX doesn't play nice with Continuity
7			use YAML qw/LoadFile DumpFile/;
8	dpavlin	151
9			=head2 store
10
11			$o->store( 'filename.yml', $data );
12
13			=cut
14
15			has 'storage_timestamp' => (
16			is => 'rw',
17			isa => 'HashRef[Int]',
18			default => sub { {} },
19			);
20
21			sub store {
22			my $self = shift;
23			my ( $filename, $data ) = @_;
24			$filename .= '.yml';
25	dpavlin	224	$self->mkbasepath( $filename );
26	dpavlin	151	DumpFile( $filename, $data );
27			}
28
29			=head2 load
30
31			$data = $o->load( 'filename.yml' );
32
33			=cut
34
35			sub load {
36			my ( $self, $filename ) = @_;
37			$filename .= '.yml';
38	dpavlin	153	return if ! -e $filename;
39	dpavlin	151	$self->storage_timestamp->{ $filename } = _path_time( $filename );
40			LoadFile( $filename );
41			}
42
43			=head2 reload
44
45			Reload file if on-disk copy have changed
46
47	dpavlin	153	my $new_data = $o->reload( 'filename.yml' );
48	dpavlin	151
49			=cut
50
51			sub _path_time {
52			(stat( $_[0] ))[9]; # mtime
53			}
54
55			sub reload {
56	dpavlin	153	my ( $self, $filename ) = @_;
57	dpavlin	151	my $path = $filename . '.yml';
58	dpavlin	170	return if defined $self->storage_timestamp->{ $path } && $self->storage_timestamp->{ $path } == _path_time( $path );
59	dpavlin	151	warn "# reload $filename" if $self->debug;
60	dpavlin	153	$self->load( $filename );
61	dpavlin	151	}
62	dpavlin	153
63	dpavlin	151	1;