Class: Rails::Generator::Scripts::Base

Inherits:
Object
  • Object
show all
Includes:
Options
Defined in:
lib/rails_generator/scripts.rb

Overview

Generator scripts handle command-line invocation. Each script responds to an invoke! class method which handles option parsing and generator invocation.

Direct Known Subclasses

Destroy, Generate, Update

Instance Method Summary collapse

Instance Method Details

#run(args = [], runtime_options = {}) ⇒ Object

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.



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# File 'lib/rails_generator/scripts.rb', line 17

def run(args = [], runtime_options = {})
  begin
    parse!(args.dup, runtime_options)
  rescue OptionParser::InvalidOption => e
    # Don't cry, script. Generators want what you think is invalid.
  end

  # Generator name is the only required option.
  unless options[:generator]
    usage if args.empty?
    options[:generator] ||= args.shift
  end

  # Look up generator instance and invoke command on it.
  Rails::Generator::Base.instance(options[:generator], args, options).command(options[:command]).invoke!
rescue => e
  puts e
  puts "  #{e.backtrace.join("\n  ")}\n" if options[:backtrace]
  raise SystemExit
end