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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