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#!/usr/bin/env ruby
#
# omptagger
# http://github.com/omp/omptagger
# Modify and display metadata of audio files.
#
# Copyright 2007-2010 David Vazgenovich Shakaryan <dvshakaryan@gmail.com>
# Distributed under the terms of the GNU General Public License v3.
# See http://www.gnu.org/licenses/gpl.txt for the full license text.
require 'getoptlong'
def help
puts <<-end
Usage: omptagger [options] [files]
Options:
--view -v View all tags
--view-tag -t View a tag
--set-tag -s Set a tag
--remove -r Remove all tags
--remove-tag -d Remove a tag
--generate -g Generate tags based on filename
--rename -m Generate filename based on tags
--scheme -n Specify a file naming scheme
--pretend -p Do not make any actual changes
--list -l Display list of available tags
--help -h Display help information
Notes:
* The default file naming scheme is Artist - Title.
* Schemes must be specified prior to actions that use them.
end
exit
end
def list
puts <<-end
┌────────────────────────┐
│ Keys Vorbis Comments │
├────────────────────────┤
│ %a Artist │
│ %b Album │
│ %d Date │
│ %n TrackNumber │
│ %t Title │
│ %* Wildcard │
├────────────────────────┤
│ Contact │
│ Copyright │
│ Description │
│ Genre │
│ ISRC │
│ License │
│ Location │
│ Organization │
│ Performer │
│ Version │
└────────────────────────┘
end
exit
end
actions = Array.new
options = Array.new
scheme = '%a - %t'
GetoptLong.new(
['--view', '-v', GetoptLong::NO_ARGUMENT],
['--view-tag', '-t', GetoptLong::REQUIRED_ARGUMENT],
['--set-tag', '-s', GetoptLong::REQUIRED_ARGUMENT],
['--remove', '-r', GetoptLong::NO_ARGUMENT],
['--remove-tag', '-d', GetoptLong::REQUIRED_ARGUMENT],
['--generate', '-g', GetoptLong::NO_ARGUMENT],
['--rename', '-m', GetoptLong::NO_ARGUMENT],
['--scheme', '-n', GetoptLong::REQUIRED_ARGUMENT],
['--pretend', '-p', GetoptLong::NO_ARGUMENT],
['--list', '-l', GetoptLong::NO_ARGUMENT],
['--help', '-h', GetoptLong::NO_ARGUMENT]
).each do |option, argument|
option = option.delete('-').intern
case option
when :scheme
scheme = argument
when :help, :list, :pretend
options << option
when :viewtag, :settag, :removetag
actions << [option, argument]
when :generate, :rename
actions << [option, scheme]
else
actions << option
end
end
help if options.include?(:help)
list if options.include?(:list)
help if actions.empty?
puts 'No files specified.' if ARGV.empty?
ARGV.each do |file|
puts file
# Use absolute path internally.
file = File.expand_path(file)
begin
raise 'File does not exist.' unless File.exist?(file)
case File.extname(file).downcase
when '.flac'
puts ' Treat this as a FLAC file.'
when '.ogg'
puts ' Treat this as a Vorbis file.'
else
raise 'File extension not recognised.'
end
rescue RuntimeError => message
puts ' ' + message
end
end
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