/usr/share/perl5/Config/MVP/Reader.pm is in libconfig-mvp-perl 2.200001-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | package Config::MVP::Reader;
BEGIN {
$Config::MVP::Reader::VERSION = '2.200001';
}
use Moose;
# ABSTRACT: object to read config from storage into an assembler
use Config::MVP::Assembler;
sub read_config {
my ($self, $location, $arg) = @_;
$arg ||= {};
$self = $self->new unless blessed $self;
my $assembler = $arg->{assembler} || $self->build_assembler;
$self->read_into_assembler($location, $assembler);
return $assembler->sequence;
}
sub read_into_assembler {
confess 'required method read_into_assembler unimplemented'
}
sub build_assembler { Config::MVP::Assembler->new; }
no Moose;
1;
__END__
=pod
=head1 NAME
Config::MVP::Reader - object to read config from storage into an assembler
=head1 VERSION
version 2.200001
=head1 SYNOPSIS
use Config::MVP::Reader::YAML; # this doesn't really exist
my $reader = Config::MVP::Reader::YAML->new;
my $sequence = $reader->read_config('/etc/foobar.yml');
=head1 DESCRIPTION
A Config::MVP::Reader exists to read configuration data from storage (like a
file) and convert that data into instructions to a L<Config::MVP::Assembler>,
which will in turn convert them into a L<Config::MVP::Sequence>, the final
product.
=head1 METHODS
=head2 read_config
my $sequence = $reader->read_config($location, \%arg);
This method is passed a location, which has no set meaning, but should be the
mechanism by which the Reader is told how to locate configuration. It might be
a file name, a hashref of parameters, a DBH, or anything else, depending on the
needs of the specific Reader subclass.
It is also passed a hashref of arguments, of which there is only one valid
argument:
assembler - the Assembler object into which to read the config
If no assembler argument is passed, one will be constructed by calling the
Reader's C<build_assembler> method.
Subclasses should generally not override C<read_config>, but should instead
implement a C<read_into_assembler> method, described below.
=head2 read_into_assembler
This method should not be called directly. It is called by C<read_config> with
the following parameters:
my $sequence = $reader->read_into_assembler( $location, $assembler );
The method should read the configuration found at C<$location> and use it to
instruct the C<$assembler> (a L<Config::MVP::Assembler>) what configuration to
perform.
The default implementation of this method will throw an exception complaining
that it should have been implemented by a subclass.
=head2 build_assembler
If no Assembler is provided to C<read_config>'s C<assembler> parameter, this
method will be called on the Reader to construct one.
It must return a Config::MVP::Assembler object, and by default will return an
entirely generic one.
=head1 AUTHOR
Ricardo Signes <rjbs@cpan.org>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2011 by Ricardo Signes.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
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