lib/App/MusicExpo.pm

   1 package App::MusicExpo 0.001;
   2 use v5.14;
   3 use strict;
   4 use warnings;
   5
   6 use Audio::FLAC::Header qw//;
   7 use HTML::Template::Compiled qw//;
   8 use Memoize qw/memoize/;
   9 use MP3::Tag qw//;
  10
  11 use DB_File qw//;
  12 use File::Basename qw/fileparse/;
  13 use Fcntl qw/O_RDWR O_CREAT/;
  14 use Getopt::Long;
  15 use Storable qw/thaw freeze/;
  16
  17 ##################################################
  18
  19 my $default_template;
  20
  21 our $prefix='/music/';
  22 our $cache='cache.db';
  23 our $caching=1;
  24 our $template='';
  25
  26 GetOptions (
  27   "template=s" => \$template,
  28   "prefix=s" => \$prefix,
  29   "cache=s" => \$cache,
  30   "caching!" => \$caching,
  31 );
  32
  33
  34 sub fix{
  35   utf8::decode($_[0]);
  36 }
  37
  38 sub flacinfo{
  39   my $file=$_[0];
  40   my $flac=Audio::FLAC::Header->new($file);
  41   $file = $prefix . scalar fileparse $file;
  42
  43   freeze +{
  44         format => 'FLAC',
  45         title => fix ($flac->tags('TITLE') // '?'),
  46         artist => fix ($flac->tags('ARTIST') // '?'),
  47         year => fix ($flac->tags('DATE') // '?'),
  48         album => fix ($flac->tags('ALBUM') // '?'),
  49         tracknumber => fix ($flac->tags('TRACKNUMBER') // '?'),
  50         tracktotal => fix ($flac->tags('TRACKTOTAL') // '?'),
  51         genre => fix ($flac->tags('GENRE') // '?'),
  52         path => $file,
  53   }
  54 }
  55
  56 sub mp3info{
  57   my $file=$_[0];
  58   my $mp3=MP3::Tag->new($file);
  59   $file = $prefix . scalar fileparse $file;
  60
  61   freeze +{
  62         format => 'MP3',
  63         title => fix ($mp3->title || '?'),
  64         artist => fix ($mp3->artist || '?'),
  65         year => fix ($mp3->year || '?'),
  66         album => fix ($mp3->album || '?'),
  67         tracknumber => fix ($mp3->track1 || '?'),
  68         tracktotal => fix ($mp3->track2 || '?'),
  69         genre => fix ($mp3->genre) || '?',
  70         path => $file,
  71   }
  72 }
  73
  74 sub normalizer{
  75   "$_[0]|".(stat $_[0])[9]
  76 }
  77
  78 sub run {
  79   tie my %cache, 'DB_File', $cache, O_RDWR|O_CREAT, 0644 if $caching;
  80   memoize 'flacinfo', NORMALIZER => \&normalizer, LIST_CACHE => 'MERGE', SCALAR_CACHE => [HASH => \%cache] if $caching;
  81   memoize 'mp3info' , NORMALIZER => \&normalizer, LIST_CACHE => 'MERGE', SCALAR_CACHE => [HASH => \%cache] if $caching;
  82
  83   my @files;
  84   for my $file (@ARGV) {
  85         push @files, thaw flacinfo $file if $file =~ /.flac$/i;
  86         push @files, thaw mp3info $file if $file =~ /.mp3$/i;
  87   }
  88
  89   my $ht=HTML::Template::Compiled->new(
  90         default_escape => 'HTML',
  91         $template eq '' ? (scalarref => \$default_template) : (filename => $template),
  92   );
  93   $ht->param(files=>[sort { $a->{title} cmp $b->{title} } @files]);
  94   print $ht->output;
  95 }
  96
  97 $default_template = <<'HTML';
  98 <!DOCTYPE html>
  99 <title>Music</title>
 100 <meta charset="utf-8">
 101 <link rel="stylesheet" href="/music.css">
 102
 103 <table border>
 104 <thead>
 105 <tr><th>Title<th>Artist<th>Album<th>Genre<th>Track<th>Year<th>Type
 106 <tbody><tmpl_loop files>
 107 <tr><td><a href="<tmpl_var ESCAPE=URL path>"><tmpl_var title></a><td><tmpl_var artist><td><tmpl_var album><td><tmpl_var genre><td><tmpl_var tracknumber>/<tmpl_var tracktotal><td><tmpl_var year><td><tmpl_var format></tmpl_loop>
 108 </table>
 109 HTML
 110
 111 1;
 112
 113 __END__
 114
 115 =head1 NAME
 116
 117 App::MusicExpo - script which generates a HTML table of music tags
 118
 119 =head1 SYNOPSIS
 120
 121   use App::MusicExpo;
 122   App::MusicExpo->run;
 123
 124 =head1 DESCRIPTION
 125
 126 App::MusicExpo creates a HTML table from a list of songs.
 127
 128 The default template looks like:
 129
 130     | Title   | Artist  | Album           | Genre   | Track | Year | Type |
 131     |---------+---------+-----------------+---------+-------+------+------|
 132     | Cellule | Silence | L'autre endroit | Electro | 01/09 | 2005 | FLAC |
 133
 134 where the title is a download link.
 135
 136 =head1 OPTIONS
 137
 138 =over
 139
 140 =item B<--template> I<template>
 141
 142 Path to the HTML::Template::Compiled template used for generating the music table. If '' (empty), uses the default format. Is empty by default.
 143
 144 =item B<--prefix> I<prefix>
 145
 146 Prefix for download links. Defaults to '/music/'.
 147
 148 =item B<--cache> I<filename>
 149
 150 Path to the cache file. Created if it does not exist. Defaults to 'cache.db'
 151
 152 =item B<--caching>, B<--no-caching>
 153
 154 Enables or disables caching. Defaults to B<--caching>
 155
 156 =back
 157
 158 =head1 AUTHOR
 159
 160 Marius Gavrilescu, E<lt>marius@ieval.roE<gt>
 161
 162 =head1 COPYRIGHT AND LICENSE
 163
 164 Copyright (C) 2013 by Marius Gavrilescu
 165
 166 This library is free software; you can redistribute it and/or modify
 167 it under the same terms as Perl itself, either Perl version 5.14.2 or,
 168 at your option, any later version of Perl 5 you may have available.