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/;
use File::Slurp;
use Carp qw/croak carp/;

=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 ) = @_;
        $self->mkbasepath( $filename );
        if ( $filename =~ m{\.ya?ml$}i ) {
                DumpFile( $filename, $data );
        } else {
                croak "without extension we can save only scalar data" if ref($data);
                write_file( $filename, $data );
        }
        carp "created $filename ", -s $filename;
}

=head2 load

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

=cut

sub load {
        my ( $self, $filename ) = @_;
        return if ! -e $filename;
        my $data;
        if ( $filename =~ m{\.ya?ml}i ) {
                $data = LoadFile( $filename );
        } else {
                $data = read_file( $filename );
        }
        $self->storage_timestamp->{ $filename } = _path_time( $filename );
        return $data;
}

=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 ) = @_;
        return if defined $self->storage_timestamp->{ $filename } && $self->storage_timestamp->{ $filename } == _path_time( $filename );
        warn "# reload $filename" if $self->debug;
        $self->load( $filename );
}

no Moose::Role;

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	301	use File::Slurp;
9			use Carp qw/croak carp/;
10	dpavlin	151
11			=head2 store
12
13			$o->store( 'filename.yml', $data );
14
15			=cut
16
17			has 'storage_timestamp' => (
18			is => 'rw',
19			isa => 'HashRef[Int]',
20			default => sub { {} },
21			);
22
23			sub store {
24			my $self = shift;
25			my ( $filename, $data ) = @_;
26	dpavlin	539	$self->mkbasepath( $filename );
27	dpavlin	301	if ( $filename =~ m{\.ya?ml$}i ) {
28			DumpFile( $filename, $data );
29			} else {
30			croak "without extension we can save only scalar data" if ref($data);
31			write_file( $filename, $data );
32			}
33			carp "created $filename ", -s $filename;
34	dpavlin	151	}
35
36			=head2 load
37
38			$data = $o->load( 'filename.yml' );
39
40			=cut
41
42			sub load {
43			my ( $self, $filename ) = @_;
44	dpavlin	153	return if ! -e $filename;
45	dpavlin	301	my $data;
46			if ( $filename =~ m{\.ya?ml}i ) {
47			$data = LoadFile( $filename );
48			} else {
49			$data = read_file( $filename );
50			}
51	dpavlin	151	$self->storage_timestamp->{ $filename } = _path_time( $filename );
52	dpavlin	301	return $data;
53	dpavlin	151	}
54
55			=head2 reload
56
57			Reload file if on-disk copy have changed
58
59	dpavlin	153	my $new_data = $o->reload( 'filename.yml' );
60	dpavlin	151
61			=cut
62
63			sub _path_time {
64			(stat( $_[0] ))[9]; # mtime
65			}
66
67			sub reload {
68	dpavlin	153	my ( $self, $filename ) = @_;
69	dpavlin	301	return if defined $self->storage_timestamp->{ $filename } && $self->storage_timestamp->{ $filename } == _path_time( $filename );
70	dpavlin	151	warn "# reload $filename" if $self->debug;
71	dpavlin	153	$self->load( $filename );
72	dpavlin	151	}
73	dpavlin	153
74	dpavlin	1133	no Moose::Role;
75
76	dpavlin	151	1;