JezK
Edit File: arguments.rb
class Bundler::Thor class Arguments #:nodoc: # rubocop:disable ClassLength NUMERIC = /[-+]?(\d*\.\d+|\d+)/ # Receives an array of args and returns two arrays, one with arguments # and one with switches. # def self.split(args) arguments = [] args.each do |item| break if item.is_a?(String) && item =~ /^-/ arguments << item end [arguments, args[Range.new(arguments.size, -1)]] end def self.parse(*args) to_parse = args.pop new(*args).parse(to_parse) end # Takes an array of Bundler::Thor::Argument objects. # def initialize(arguments = []) @assigns = {} @non_assigned_required = [] @switches = arguments arguments.each do |argument| if !argument.default.nil? @assigns[argument.human_name] = argument.default elsif argument.required? @non_assigned_required << argument end end end def parse(args) @pile = args.dup @switches.each do |argument| break unless peek @non_assigned_required.delete(argument) @assigns[argument.human_name] = send(:"parse_#{argument.type}", argument.human_name) end check_requirement! @assigns end def remaining @pile end private def no_or_skip?(arg) arg =~ /^--(no|skip)-([-\w]+)$/ $2 end def last? @pile.empty? end def peek @pile.first end def shift @pile.shift end def unshift(arg) if arg.is_a?(Array) @pile = arg + @pile else @pile.unshift(arg) end end def current_is_value? peek && peek.to_s !~ /^-{1,2}\S+/ end # Runs through the argument array getting strings that contains ":" and # mark it as a hash: # # [ "name:string", "age:integer" ] # # Becomes: # # { "name" => "string", "age" => "integer" } # def parse_hash(name) return shift if peek.is_a?(Hash) hash = {} while current_is_value? && peek.include?(":") key, value = shift.split(":", 2) raise MalformattedArgumentError, "You can't specify '#{key}' more than once in option '#{name}'; got #{key}:#{hash[key]} and #{key}:#{value}" if hash.include? key hash[key] = value end hash end # Runs through the argument array getting all strings until no string is # found or a switch is found. # # ["a", "b", "c"] # # And returns it as an array: # # ["a", "b", "c"] # def parse_array(name) return shift if peek.is_a?(Array) array = [] array << shift while current_is_value? array end # Check if the peek is numeric format and return a Float or Integer. # Check if the peek is included in enum if enum is provided. # Otherwise raises an error. # def parse_numeric(name) return shift if peek.is_a?(Numeric) unless peek =~ NUMERIC && $& == peek raise MalformattedArgumentError, "Expected numeric value for '#{name}'; got #{peek.inspect}" end value = $&.index(".") ? shift.to_f : shift.to_i if @switches.is_a?(Hash) && switch = @switches[name] if switch.enum && !switch.enum.include?(value) raise MalformattedArgumentError, "Expected '#{name}' to be one of #{switch.enum.join(', ')}; got #{value}" end end value end # Parse string: # for --string-arg, just return the current value in the pile # for --no-string-arg, nil # Check if the peek is included in enum if enum is provided. Otherwise raises an error. # def parse_string(name) if no_or_skip?(name) nil else value = shift if @switches.is_a?(Hash) && switch = @switches[name] if switch.enum && !switch.enum.include?(value) raise MalformattedArgumentError, "Expected '#{name}' to be one of #{switch.enum.join(', ')}; got #{value}" end end value end end # Raises an error if @non_assigned_required array is not empty. # def check_requirement! return if @non_assigned_required.empty? names = @non_assigned_required.map do |o| o.respond_to?(:switch_name) ? o.switch_name : o.human_name end.join("', '") class_name = self.class.name.split("::").last.downcase raise RequiredArgumentMissingError, "No value provided for required #{class_name} '#{names}'" end end end