module Main - scrunch-0.1.1 Documentation

assert_required(prog_name) click to toggle source

Complains if the requested program is not on $PATH

# File lib/scrunch/main.rb, line 9
def self.assert_required(prog_name)
  raise "Could not find \"#{prog_name}\".\n" unless on_path?(prog_name)
end

check_args() click to toggle source

Checks to ensure the correct number of arguments have been passed to scrunch.

# File lib/scrunch/main.rb, line 15
def self.check_args
  return if ARGV.length == 1
  abort "Usage: scrunch <audiobook>"
end

check_reqs() click to toggle source

AtomicParsley and afconvert are required for scrunch to scrunch, so they needs checking for.

# File lib/scrunch/main.rb, line 22
def self.check_reqs
  assert_required "AtomicParsley"
  assert_required "afconvert"
end

on_path?(prog_name) click to toggle source

Checks to see if a program is on $PATH.

# File lib/scrunch/main.rb, line 4
def self.on_path?(prog_name)
  !`which "#{prog_name}"`.empty?
end

preflight() click to toggle source

Well, scrunch doesn't fly, but it does scrunch, so some checks are made to ensure that it is ready to scrunch. This runs the other methods that check for problems before scrunchery.

# File lib/scrunch/main.rb, line 30
def self.preflight
  check_args
  check_reqs
  abort "No such file or directory" unless File.file?(ARGV[0])
end

run() click to toggle source

Scrunches.

# File lib/scrunch/main.rb, line 37
def self.run
  preflight
  input_filename = File.absolute_path(ARGV[0])
  metadata = Meta.get_metadata(input_filename)
  output_filename = Meta.make_filename(input_filename)

  puts "Scrunching..."
  system Transcode.crush_file(input_filename, output_filename)
  cover = Meta.get_cover(input_filename)
  system Meta.apply_metadata(output_filename, metadata, cover)
  system "rm \"#{cover}\""
end