This method return the correct location of padrino-gen bin or exec it using Kernel#system with the given args.
@param [Array<String>] args.
Splat of arguments to pass to padrino-gen.
@example
Padrino.bin_gen(:app, name.to_s, "-r=#{destination_root}")
# File lib/padrino-gen/command.rb, line 14 def self.bin_gen(*args) @_padrino_gen_bin ||= [Padrino.ruby_command, File.expand_path("../../../bin/padrino-gen", __FILE__)] system args.unshift(@_padrino_gen_bin).join(" ") end