free_mutant/lib/mutant/cli.rb
2013-04-17 20:31:21 -07:00

214 lines
4 KiB
Ruby

module Mutant
# Comandline parser
class CLI < CLIParser
include Adamantium::Flat, Equalizer.new(:matcher, :filter, :strategy, :reporter)
# Run cli with arguments
#
# @param [Array<String>] arguments
#
# @return [Fixnum]
# returns exit status
#
# @api private
#
def self.run(*arguments)
config = new(*arguments).config
runner = Runner::Config.run(config)
runner.success? ? EXIT_SUCCESS : EXIT_FAILURE
rescue Error => exception
$stderr.puts(exception.message)
EXIT_FAILURE
end
OPTIONS = {
'--code' => [:add_filter, Mutation::Filter::Code ],
'--debug' => [:set_debug ],
'-d' => [:set_debug ],
'--rspec-unit' => [:set_strategy, Strategy::Rspec::Unit ],
'--rspec-full' => [:set_strategy, Strategy::Rspec::Full ],
'--rspec-dm2' => [:set_strategy, Strategy::Rspec::DM2 ]
}.freeze
# Initialize objecct
#
# @param [Array<String>]
#
# @return [undefined]
#
# @api private
#
def initialize(arguments)
@filters, @matchers = [], []
super(arguments)
strategy
matcher
end
# Return config
#
# @return [Config]
#
# @api private
#
def config
Config.new(
:debug => debug?,
:matcher => matcher,
:filter => filter,
:strategy => strategy,
:reporter => reporter
)
end
memoize :config
private
# Test for running in debug mode
#
# @return [true]
# if debug mode is active
#
# @return [false]
# otherwise
#
# @api private
#
def debug?
!!@debug
end
# Return mutation filter
#
# @return [Mutant::Matcher]
#
# @api private
#
def filter
if @filters.empty?
Mutation::Filter::ALL
else
Mutation::Filter::Whitelist.new(@filters)
end
end
memoize :filter
# Return stratety
#
# @return [Strategy]
#
# @api private
#
def strategy
@strategy || raise(Error, 'No strategy was set!')
@strategy.new(self)
end
memoize :strategy
# Return reporter
#
# @return [Mutant::Reporter::CLI]
#
# @api private
#
def reporter
Mutant::Reporter::CLI.new(self)
end
memoize :reporter
# Return matcher
#
# @return [Mutant::Matcher]
#
# @raise [CLI::Error]
# raises error when matcher is not given
#
# @api private
#
def matcher
if @matchers.empty?
raise Error, 'No matchers given'
end
Mutant::Matcher::Chain.build(@matchers)
end
memoize :matcher
# Move processed argument by amount
#
# @param [Fixnum] amount
# the amount of arguments to be consumed
#
# @return [undefined]
#
# @api private
#
def consume(amount)
@index += amount
end
# Process matcher argument
#
# @return [undefined]
#
# @api private
#
def dispatch_matcher
argument = current_argument
consume(1)
@matchers << Classifier.build(argument)
end
# Process option argument
#
# @return [Undefined]
#
# @api private
#
def dispatch_option
argument = current_argument
arguments = *OPTIONS.fetch(argument) do
raise Error, "Unknown option: #{argument.inspect}"
end
send(*arguments)
end
# Add mutation filter
#
# @param [Class<Mutant::Filter>] klass
#
# @return [undefined]
#
# @api private
#
def add_filter(klass)
@filters << klass.new(current_option_value)
consume(2)
end
# Set debug mode
#
# @api private
#
# @return [undefined]
#
def set_debug
consume(1)
@debug = true
end
# Set strategy
#
# @param [Strategy] strategy
#
# @api private
#
# @return [undefined]
#
def set_strategy(strategy)
consume(1)
@strategy = strategy
end
end
end