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package Perlanet::Trait::YAMLConfig; |
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use strict; |
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use warnings; |
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use Moose::Role; |
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use namespace::autoclean; |
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=head1 NAME |
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Perlanet::Trait::YAMLConfig - configure Perlanet through a YAML configuration |
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file |
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=head1 SYNOPSIS |
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package MyPerlanet; |
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extends 'Perlanet'; |
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with 'Perlanet::Traits::YAMLConfig'; |
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my $perlanet = MyPerlanet->new_with_config( |
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configfile => 'whatever.yml' |
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); |
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$perlanet->run; |
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=head1 DESCRIPTION |
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Allows you to move the configuration of Perlanet to an external YAML |
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configuration file. |
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=head2 Example Configuration File |
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title: planet test |
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description: A Test Planet |
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url: http://planet.example.com/ |
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author: |
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name: Dave Cross |
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email: dave@dave.org.uk |
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entries: 20 |
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40
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opml: opml.xml |
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page: |
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file: index.html |
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template: index.tt |
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feed: |
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file: atom.xml |
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format: Atom |
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cache_dir: /tmp/feeds |
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feeds: |
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- url: http://blog.dave.org.uk/atom.xml |
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title: Dave's Blog |
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web: http://blog.dave.org.uk/ |
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- url: http://use.perl.org/~davorg/journal/rss |
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title: Dave's use.perl Journal |
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web: http://use.perl.org/~davorg/journal/ |
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- url: http://www.oreillynet.com/pub/feed/31?au=2607 |
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title: Dave on O'Reillynet |
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web: http://www.oreillynet.com/pub/au/2607 |
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59
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=head1 METHODS |
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61
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=head2 THIRTY_DAYS |
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63
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The default length of caching, if caching options are present in the |
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configuration |
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66
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=head2 get_config_from_file |
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67
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68
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Extracts the configuration from a YAML file |
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70
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=cut |
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72
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with 'MooseX::ConfigFromFile'; |
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74
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1
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1
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77
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use Carp qw( carp croak ); |
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1
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2
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1
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51
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75
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1
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1
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5
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use YAML qw( LoadFile ); |
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1
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2
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1
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42
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76
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77
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1
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1
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5
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use constant THIRTY_DAYS => 30 * 24 * 60 * 60; |
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2
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1
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251
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78
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79
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sub get_config_from_file { |
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80
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0
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my ($self, $file) = @_; |
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81
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82
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0
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0
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open my $cfg_file, '<:utf8', $file |
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83
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or croak "Cannot open file $file: $!"; |
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84
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85
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0
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my $cfg = LoadFile($cfg_file); |
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86
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87
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$cfg->{feeds} = [ map { |
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88
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0
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Perlanet::Feed->new($_) |
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89
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0
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} @{ $cfg->{feeds} } ]; |
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0
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90
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91
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$cfg->{max_entries} = $cfg->{entries} |
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92
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0
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0
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if $cfg->{entries}; |
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93
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94
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0
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0
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if ($cfg->{cache_dir}) { |
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95
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0
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eval { require CHI; }; |
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0
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96
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97
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0
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0
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if ($@) { |
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98
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0
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carp "You need to install CHI to enable caching.\n"; |
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99
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0
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carp "Caching disabled for this run.\n"; |
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100
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0
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delete $cfg->{cache_dir}; |
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101
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} |
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102
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} |
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103
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104
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$cfg->{cache_dir} |
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105
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and $cfg->{cache} = CHI->new( |
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106
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driver => 'File', |
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107
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root_dir => delete $cfg->{cache_dir}, |
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108
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0
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0
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expires_in => THIRTY_DAYS, |
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109
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); |
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110
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111
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0
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return $cfg; |
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112
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} |
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113
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114
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=head1 AUTHOR |
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115
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116
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Oliver Charles, <oliver.g.charles@googlemail.com> |
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117
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118
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=head1 COPYRIGHT AND LICENSE |
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119
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120
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Copyright (c) 2010 by Magnum Solutions Ltd. |
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121
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122
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This library is free software; you can redistribute it and/or modify |
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123
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it under the same terms as Perl itself, either Perl version 5.10.0 or, |
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124
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at your option, any later version of Perl 5 you may have available. |
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125
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126
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=cut |
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127
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128
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1; |