1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
package Mojolicious::Plugin::JSONConfig;
use Mojo::Base 'Mojolicious::Plugin::Config';
use Mojo::JSON 'from_json';
use Mojo::Template;
sub parse {
my ($self, $content, $file, $conf, $app) = @_;
my $config = eval { from_json $self->render($content, $file, $conf, $app) };
die qq{Can't parse config "$file": $@} if !$config && $@;
die qq{Invalid config "$file"} unless ref $config eq 'HASH';
return $config;
}
sub register { shift->SUPER::register(shift, {ext => 'json', %{shift()}}) }
sub render {
my ($self, $content, $file, $conf, $app) = @_;
# Application instance and helper
my $prepend = q[my $app = shift; no strict 'refs'; no warnings 'redefine';];
$prepend .= q[sub app; local *app = sub { $app }; use Mojo::Base -strict;];
my $mt = Mojo::Template->new($conf->{template} || {})->name($file);
my $output = $mt->prepend($prepend . $mt->prepend)->render($content, $app);
return ref $output ? die $output : $output;
}
1;
=encoding utf8
=head1 NAME
Mojolicious::Plugin::JSONConfig - JSON configuration plugin
=head1 SYNOPSIS
# myapp.json (it's just JSON with embedded Perl)
{
"foo" : "bar",
"music_dir" : "<%= app->home->rel_dir('music') %>"
}
# Mojolicious
my $config = $self->plugin('JSONConfig');
say $config->{foo};
# Mojolicious::Lite
my $config = plugin 'JSONConfig';
say $config->{foo};
# foo.html.ep
%= $config->{foo}
# The configuration is available application wide
my $config = app->config;
say $config->{foo};
# Everything can be customized with options
my $config = plugin JSONConfig => {file => '/etc/myapp.conf'};
=head1 DESCRIPTION
L<Mojolicious::Plugin::JSONConfig> is a JSON configuration plugin that
preprocesses its input with L<Mojo::Template>.
The application object can be accessed via C<$app> or the C<app> function. You
can extend the normal configuration file C<$moniker.json> with C<mode>
specific ones like C<$moniker.$mode.json>. A default configuration filename
will be generated from the value of L<Mojolicious/"moniker">.
The code of this plugin is a good example for learning to build new plugins,
you're welcome to fork it.
See L<Mojolicious::Plugins/"PLUGINS"> for a list of plugins that are available
by default.
=head1 OPTIONS
L<Mojolicious::Plugin::JSONConfig> inherits all options from
L<Mojolicious::Plugin::Config> and supports the following new ones.
=head2 template
# Mojolicious::Lite
plugin JSONConfig => {template => {line_start => '.'}};
Attribute values passed to L<Mojo::Template> object used to preprocess
configuration files.
=head1 METHODS
L<Mojolicious::Plugin::JSONConfig> inherits all methods from
L<Mojolicious::Plugin::Config> and implements the following new ones.
=head2 parse
$plugin->parse($content, $file, $conf, $app);
Process content with L</"render"> and parse it with L<Mojo::JSON>.
sub parse {
my ($self, $content, $file, $conf, $app) = @_;
...
$content = $self->render($content, $file, $conf, $app);
...
return $hash;
}
=head2 register
my $config = $plugin->register(Mojolicious->new);
my $config = $plugin->register(Mojolicious->new, {file => '/etc/foo.conf'});
Register plugin in L<Mojolicious> application and merge configuration.
=head2 render
$plugin->render($content, $file, $conf, $app);
Process configuration file with L<Mojo::Template>.
sub render {
my ($self, $content, $file, $conf, $app) = @_;
...
return $content;
}
=head1 SEE ALSO
L<Mojolicious>, L<Mojolicious::Guides>, L<http://mojolicio.us>.
=cut
|
