Module: Command

Defined in:
lib/command.rb

Class Method Summary collapse

Class Method Details

.build_patch_data_from_csv_file(path) ⇒ Object 



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# File 'lib/command.rb', line 34

def self.build_patch_data_from_csv_file(path)
  basename = File.basename(path, ".csv")
  audulus_patch_name = "#{basename}.audulus"

  coordinates = normalize_coordinates(CSV.readlines(path))

  results = { :output_path => audulus_patch_name,
              :coordinates => coordinates }
end

.build_patch_data_from_wav_file(path, title = nil, subtitle = nil) ⇒ Object 



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# File 'lib/command.rb', line 12

def self.build_patch_data_from_wav_file(path, title=nil, subtitle=nil)
  # break the path into directory and path so we can build the audulus file's name
  parent, file = path.split("/")[-2..-1]

  # load the samples from the WAV file
  samples = Sox.load_samples(path)

  # build the audulus patch name from the WAV file name
  basename = File.basename(file, ".wav")
  audulus_patch_name = "#{basename}.audulus"

  results = { :output_path => audulus_patch_name,
              :samples     => samples,
              :title       => title,
              :subtitle    => subtitle, }

  results[:title]    ||= parent
  results[:subtitle] ||= basename

  results
end

.handle_base_options(options) ⇒ Object 



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# File 'lib/command.rb', line 165

def self.handle_base_options(options)
  if options.has_key?(:help)
    puts options[:help]
    exit(0)
  end

  path = options[:input_filename]
  unless File.exist?(path)
    puts "Cannot find file at #{path}"
    exit(1)
  end

  options
end

.normalize_coordinates(coordinates) ⇒ Object 



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# File 'lib/command.rb', line 44

def self.normalize_coordinates(coordinates)
  floats = coordinates.map {|strings| strings.map(&:to_f)}
  sorted = floats.sort_by(&:first)
  min_x = sorted.map(&:first).min
  max_x = sorted.map(&:first).max
  min_y = sorted.map(&:last).min
  max_y = sorted.map(&:last).max

  sorted.map {|x, y|
    [(x - min_x)/(max_x - min_x),
     (y - min_y)/(max_y - min_y)]
  }
end

.parse_arguments!(argv) ⇒ Object 



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# File 'lib/command.rb', line 58

def self.parse_arguments!(argv)
  results = {
    :spline_only => false
  }
  option_parser = OptionParser.new do |opts|
    opts.banner = "#{$0} [OPTIONS] INPUT_FILE"

    opts.on("-h", "--help", "Prints this help") do
      results[:help] = opts.help
    end

    opts.on("-tTITLE", "--title=TITLE", "provide a title for the patch (defaults to parent directory)") do |t|
      results[:title] = t
    end

    opts.on("-uSUBTITLE", "--subtitle=SUBTITLE", "provide a subtitle for the patch (defaults to file name, minus .wav)") do |u|
      results[:subtitle] = u
    end
  end

  option_parser.parse!(argv)
  if argv.count != 1
    results = {
      :help => option_parser.help
    }
  end

  results[:input_filename] = argv[0]

  results
end

.parse_midi_arguments!(argv) ⇒ Object 



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# File 'lib/command.rb', line 98

def self.parse_midi_arguments!(argv)
  results = {}

  option_parser = OptionParser.new do |opts|
    opts.banner = "#{$0} [OPTIONS] INPUT_FILE"

    opts.on("-h", "--help", "Prints this help") do
      results[:help] = opts.help
    end
  end

  option_parser.parse!(argv)
  if argv.count != 1
    results = {
      :help => option_parser.help
    }
  end

  results[:input_filename] = argv[0]

  results
end

.parse_spline_arguments!(argv) ⇒ Object 



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# File 'lib/command.rb', line 127

def self.parse_spline_arguments!(argv)
  results = {}

  option_parser = OptionParser.new do |opts|
    opts.banner = "#{$0} [OPTIONS] INPUT_FILE"

    opts.on("-h", "--help", "Prints this help") do
      results[:help] = opts.help
    end

    opts.on("-c", "--csv", "Interpret the input file as CSV, not WAV") do
      results[:csv] = true
    end
  end

  option_parser.parse!(argv)
  if argv.count != 1
    results = {
      :help => option_parser.help
    }
  end

  results[:input_filename] = argv[0]

  results
end

.run_build_midi_node(argv) ⇒ Object 



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# File 'lib/command.rb', line 121

def self.run_build_midi_node(argv)
  options = parse_midi_arguments!(argv)
  handle_base_options(options)
  MidiPatch.build_patch(options[:input_filename])
end

.run_build_spline_node(argv) ⇒ Object 



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# File 'lib/command.rb', line 154

def self.run_build_spline_node(argv)
  options = parse_spline_arguments!(argv)
  handle_base_options(options)
  if options[:csv]
    patch_data = build_patch_data_from_csv_file(options[:input_filename])
  else
    patch_data = build_patch_data_from_wav_file(options[:input_filename])
  end
  SplinePatch.build_patch(patch_data)
end

.run_build_wavetable_node(argv) ⇒ Object 



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# File 'lib/command.rb', line 90

def self.run_build_wavetable_node(argv)
  options = parse_arguments!(argv)
  handle_base_options(options)

  patch_data = build_patch_data_from_wav_file(options[:input_filename], options[:title], options[:subtitle])
  WavetablePatch.build_patch(patch_data)
end