lib/Frey/Config.pm

package Frey::Config;
use Moose::Role;

#requires 'debug';

use YAML qw/LoadFile/;
use Hash::Merge qw/merge/;
use Data::Dump qw/dump/;

=head1 NAME

Frey::Config - read configuration YAML files

=head1 SYNOPSYS

  Foo::Bar->config->{'baz'}  == 42

If C<etc/site_config.yml> or C<etc/config.yml> have:

  'Foo::Bar':
    baz: 42

or C<etc/Foo/Bar.yml> has

  baz: 42

You can also force config reload with

  Foo::Bar->load_config('custom');

which will load C<etc/custom.yml> as most specific
configuration.

=cut

our %config;

sub load_config {
        my $self = shift;
        %config = ();
        foreach my $name ( 'config', 'site_config', ref($self), @_ ) {
                my $path = "etc/$name.yml";
                if ( $path =~ s{::}{/}g ) {
                        # load under Package name
                        %config = %{ merge( { ref($self) => LoadFile($path) }, \%config ) } if -e $path;
                } else {
                        %config = %{ merge( LoadFile($path) , \%config ) } if -e $path;
                }
                warn "## load_config $path current config = ",dump( %config ) if $self->debug;
        }
}

sub config {
        my ( $self, $key ) = @_;
        $key ||= ref($self);
        warn "## config $key" if $self->debug;
        $self->load_config unless defined %config;
        #confess "$key doesn't exist in config" unless defined $config{ $key };
        return unless defined $config{ $key };
        return $config{ $key };
}

1;
1	package Frey::Config;
2	use Moose::Role;
3
4	#requires 'debug';
5
6	use YAML qw/LoadFile/;
7	use Hash::Merge qw/merge/;
8	use Data::Dump qw/dump/;
9
10	=head1 NAME
11
12	Frey::Config - read configuration YAML files
13
14	=head1 SYNOPSYS
15
16	Foo::Bar->config->{'baz'} == 42
17
18	If C<etc/site_config.yml> or C<etc/config.yml> have:
19
20	'Foo::Bar':
21	baz: 42
22
23	or C<etc/Foo/Bar.yml> has
24
25	baz: 42
26
27	You can also force config reload with
28
29	Foo::Bar->load_config('custom');
30
31	which will load C<etc/custom.yml> as most specific
32	configuration.
33
34	=cut
35
36	our %config;
37
38	sub load_config {
39	my $self = shift;
40	%config = ();
41	foreach my $name ( 'config', 'site_config', ref($self), @_ ) {
42	my $path = "etc/$name.yml";
43	if ( $path =~ s{::}{/}g ) {
44	# load under Package name
45	%config = %{ merge( { ref($self) => LoadFile($path) }, \%config ) } if -e $path;
46	} else {
47	%config = %{ merge( LoadFile($path) , \%config ) } if -e $path;
48	}
49	warn "## load_config $path current config = ",dump( %config ) if $self->debug;
50	}
51	}
52
53	sub config {
54	my ( $self, $key ) = @_;
55	$key \|\|= ref($self);
56	warn "## config $key" if $self->debug;
57	$self->load_config unless defined %config;
58	#confess "$key doesn't exist in config" unless defined $config{ $key };
59	return unless defined $config{ $key };
60	return $config{ $key };
61	}
62
63	1;