strawberryjello/downloader

require 'thor'
require 'downloader'

module Downloader

  # Wraps Downloader.batch and Downloader.download in methods that are invoked from the command-line.
  # Unless specified, params are required.
  #
  # Usage descriptions and options for each command are specified using Thor's metadata syntax.

  class CLI < Thor

    map "-v" => :version

    # Make the generated executable report runtime failures correctly to the shell.
    # See: https://github.com/erikhuda/thor/wiki/Making-An-Executable
    #
    # @return [Boolean] true
    def self.exit_on_failure?
      true
    end

    desc "version", "display version number, shortcut: -v"
    def version
      puts Downloader::VERSION
    end

    desc "batch FILE DEST", "download all URLs in FILE to DEST directory"
    option :numbered_filenames, :type => :boolean, :desc => "rename files to be downloaded with numbers according to their order in the input file; file extensions, if any, will be retained"
    option :scheme_host, :desc => "the scheme and host in one string, for files containing relative URLs"
    option :scheme, :desc => "the scheme, for files containing scheme-less URLs"
    def batch(input_file, dest)
      Downloader.batch(input_file, dest, options)
    end

    desc "download URL", "download URL to current directory"
    def download(url)
      Downloader.download(url)
    end
  end
end