Download gist files to current directory

getgist.rb

#!/usr/bin/env ruby 

require 'github_api'
require 'optparse'

options = {}
OptionParser.new do |opts|
  opts.on("-a", "--add-gist-id", "Add gist ID to output filename") do |v|
    options[:add] = true
  end
  opts.on("-q", "--quiet", "Run quietly") do |v|
    options[:quiet] = true
  end
end.parse!

ARGV.each do |gist_id|
	gists = Github.gists.get gist_id
	files = gists['files']
	files.each_key do |file|
		filename = files[file]['filename']
		content = files[file]['content']
		if options[:add]
			barename, suffix = filename.split /\.(\w+)$/
			filename = barename + "-#{gist_id}" + (suffix.nil? ? '' : ".#{suffix}")
		end
		File.open(filename, 'w') do |f| 
			puts "Writing #{filename}" unless options[:quiet]
			f.write(content)
		end
	end
end