Generator scripts handle command-line invocation. Each script responds to an invoke! class method which handles option parsing and generator invocation.
Run the generator script. Takes an array of unparsed arguments and a hash of parsed arguments, takes the generator as an option or first remaining argument, and invokes the requested command.
# File lib/rubigen/scripts.rb, line 17 17: def run(args = [], runtime_options = {}) 18: @stdout = runtime_options[:stdout] || $stdout 19: begin 20: parse!(args.dup, runtime_options) 21: rescue OptionParser::InvalidOption => e 22: # Don't cry, script. Generators want what you think is invalid. 23: end 24: 25: # Generator name is the only required option. 26: unless options[:generator] 27: usage if args.empty? 28: options[:generator] ||= args.shift 29: end 30: 31: # Look up generator instance and invoke command on it. 32: RubiGen::Base.instance(options[:generator], args, options).command(options[:command]).invoke! 33: rescue => e 34: stdout.puts e 35: stdout.puts " #{e.backtrace.join("\n ")}\n" if options[:backtrace] 36: raise SystemExit unless options[:no_exit] 37: end
# File lib/rubigen/scripts.rb, line 45 45: def usage_message 46: usage = "\nInstalled Generators\n" 47: RubiGen::Base.sources.inject([]) do |mem, source| 48: # Using an association list instead of a hash to preserve order, 49: # for aesthetic reasons more than anything else. 50: label = source.label.to_s.capitalize 51: pair = mem.assoc(label) 52: mem << (pair = [label, []]) if pair.nil? 53: pair[1] |= source.names(:visible) 54: mem 55: end.each do |label, names| 56: usage << " #{label}: #{names.join(', ')}\n" unless names.empty? 57: end 58: 59: # TODO - extensible blurbs for rails/newgem/adhearsion etc 60: # e.g. for rails http://github.com/rails/rails/tree/daee6fd92ac16878f6806c3382a9e74592aa9656/railties/lib/rails_generator/scripts.rb#L50-74 61: usage << More are available at http://rubigen.rubyforge.org/ 62: 63: usage << Run generate with no arguments for usage information #{$0} test_unit 64: return usage 65: end
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