Module: Command

Defined in:
lib/command.rb

Class Method Summary collapse

Class Method Details

.build_patch_data(path, title, subtitle) ⇒ Object 



11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
# File 'lib/command.rb', line 11

def self.build_patch_data(path, title, subtitle)
  # 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")
  puts "building #{basename}.audulus"
  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

.parse_arguments!(argv) ⇒ Object 



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

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

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

    opts.on("-s", "--spline", "generate a patch containing only a spline corresponding to the samples in the provided WAV file") do
      results[:spline_only] = true
    end

    opts.on("-m", "--midi", "generate a patch containing two splines based on the provided MIDI file") do |t|
      results[:midi] = true
    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

.run(argv) ⇒ Object 



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
 
# File 'lib/command.rb', line 74

def self.run(argv)
  arguments = argv.dup
  options = parse_arguments!(arguments)
  if options.has_key?(:help)
    puts options[:help]
    exit(0)
  end

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


  if options[:spline_only]
    patch_data = build_patch_data(path, options[:title], options[:subtitle])
    SplinePatch.build_patch(patch_data)
  elsif options[:midi]
    MidiPatch.build_patch(path)
  else
    patch_data = build_patch_data(path, options[:title], options[:subtitle])
    WavetablePatch.build_patch(patch_data)
  end
end