Receives a namespace, arguments and the behavior to invoke the generator.
It’s used as the default entry point for generate, destroy and update
commands.
# File railties/lib/rails/generators.rb, line 153
def self.invoke(namespace, args=ARGV, config={})
names = namespace.to_s.split(':')
if klass = find_by_namespace(names.pop, names.any? && names.join(':'))
args << "--help" if args.empty? && klass.arguments.any? { |a| a.required? }
klass.start(args, config)
else
options = sorted_groups.map(&:last).flatten
suggestions = options.sort_by {|suggested| levenshtein_distance(namespace.to_s, suggested) }.first(3)
msg = "Could not find generator '#{namespace}'. "
msg << "Maybe you meant #{ suggestions.map {|s| "'#{s}'"}.to_sentence(last_word_connector: " or ") }\n"
msg << "Run `rails generate --help` for more options."
puts msg
end
end
