def usage
longest_command_length = self.class.groups.map do |group|
group.map { |g| g.first.length }
end.flatten.max
self.class.groups.inject(StringIO.new) do |output, group|
output.puts "=== %s" % group.title
output.puts
group.each do |command, description|
if command.empty?
output.puts
else
output.puts "%-*s # %s" % [longest_command_length, command, description]
end
end
output.puts
output
end.string + "=== Example:\n\nrails myapp\ncd myapp\ngit init\ngit add .\ngit commit -m \"my new app\"\nheroku create\ngit push heroku master\n\n"
end