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require 'generator/actions'
module Rails
module Generators
class Error < Thor::Error
end
class Base < Thor::Group
include Rails::Generators::Actions
include Thor::Actions
# Automatically sets the source root based on the class name.
#
def self.source_root
@source_root ||= File.expand_path(File.join(File.dirname(__FILE__), 'generators', generator_name, 'templates'))
end
# Convenience method to get the namespace from the class name.
#
def self.namespace(name=nil)
if name
super
else
@namespace ||= "rails:generators:#{generator_name}"
end
end
protected
# Use Rails default banner.
#
def self.banner
"#{$0} #{generator_name} #{self.arguments.map(&:usage).join(' ')} [options]"
end
# Removes the namespaces and get the generator name. For example,
# Rails::Generators::MetalGenerator will return "metal" as generator name.
#
# The name is used to set the namespace (in this case "rails:generators:metal")
# and to set the source root ("generators/metal/templates").
#
def self.generator_name
@generator_name ||= begin
klass_name = self.name.gsub(/^Rails::Generators::/, '')
klass_name.gsub!(/Generator$/, '')
klass_name.underscore
end
end
# Small macro to add ruby as an option to the generator with proper
# default value plus an instance helper method called shebang.
#
def self.add_shebang_option!
require 'rbconfig'
default = File.join(Config::CONFIG['bindir'], Config::CONFIG['ruby_install_name'])
class_option :ruby, :type => :string, :aliases => "-r", :default => default,
:desc => "Path to the Ruby binary of your choice"
class_eval do
protected
def shebang
"#!#{options[:ruby] || "/usr/bin/env ruby"}"
end
end
end
end
end
end
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