class Cucumber::Cli::Options

Constants

BUILTIN_FORMATS
CUCUMBER_PUBLISH_URL
FAIL_FAST_FLAG
FORMAT_HELP
FORMAT_HELP_MSG
INDENT
NO_PROFILE_LONG_FLAG
NO_PROFILE_SHORT_FLAG
OPTIONS_WITH_ARGS
ORDER_TYPES
PROFILE_LONG_FLAG
PROFILE_SHORT_FLAG
RETRY_FLAG
TAG_LIMIT_MATCHER

Attributes

expanded_args[R]
options[R]
profiles[R]

Public Class Methods

new(out_stream = STDOUT, error_stream = STDERR, options = {}) click to toggle source
# File lib/cucumber/cli/options.rb, line 71
def initialize(out_stream = STDOUT, error_stream = STDERR, options = {})
  @out_stream   = out_stream
  @error_stream = error_stream

  @default_profile = options[:default_profile]
  @profiles = options[:profiles] || []
  @overridden_paths = []
  @options = default_options.merge(options)
  @profile_loader = options[:profile_loader]
  @options[:skip_profile_information] = options[:skip_profile_information]

  @disable_profile_loading = nil
end
parse(args, out_stream, error_stream, options = {}) click to toggle source
# File lib/cucumber/cli/options.rb, line 67
def self.parse(args, out_stream, error_stream, options = {})
  new(out_stream, error_stream, options).parse!(args)
end

Public Instance Methods

[](key) click to toggle source
# File lib/cucumber/cli/options.rb, line 85
def [](key)
  @options[key]
end
[]=(key, value) click to toggle source
# File lib/cucumber/cli/options.rb, line 89
def []=(key, value)
  @options[key] = value
end
check_formatter_stream_conflicts() click to toggle source
# File lib/cucumber/cli/options.rb, line 179
def check_formatter_stream_conflicts
  streams = @options[:formats].uniq.map { |(_, _, stream)| stream }
  return if streams == streams.uniq
  raise 'All but one formatter must use --out, only one can print to each stream (or STDOUT)'
end
custom_profiles() click to toggle source
# File lib/cucumber/cli/options.rb, line 171
def custom_profiles
  @profiles - [@default_profile]
end
filters() click to toggle source
# File lib/cucumber/cli/options.rb, line 175
def filters
  @options[:filters] ||= []
end
parse!(args) click to toggle source
# File lib/cucumber/cli/options.rb, line 93
      def parse!(args) # rubocop:disable Metrics/AbcSize, Metrics/MethodLength
        @args = args
        @expanded_args = @args.dup

        @args.extend(::OptionParser::Arguable)

        @args.options do |opts| # rubocop:disable Metrics/BlockLength
          opts.banner = banner
          opts.on('--publish', 'Publish a report to https://reports.cucumber.io') do
            set_option :publish_enabled, true
          end
          opts.on('--publish-quiet', 'Don\'t print information banner about publishing reports') { set_option :publish_quiet }
          opts.on('-r LIBRARY|DIR', '--require LIBRARY|DIR', *require_files_msg) { |lib| require_files(lib) }

          opts.on('-j DIR', '--jars DIR', 'Load all the jars under DIR') { |jars| load_jars(jars) } if Cucumber::JRUBY

          opts.on("#{RETRY_FLAG} ATTEMPTS", *retry_msg) { |v| set_option :retry, v.to_i }
          opts.on('--i18n-languages', *i18n_languages_msg) { list_languages_and_exit }
          opts.on('--i18n-keywords LANG', *i18n_keywords_msg) { |lang| language lang }
          opts.on(FAIL_FAST_FLAG, 'Exit immediately following the first failing scenario') { set_option :fail_fast }
          opts.on('-f FORMAT', '--format FORMAT', *format_msg, *FORMAT_HELP) do |v|
            add_option :formats, [*parse_formats(v), @out_stream]
          end
          opts.on('--init', *init_msg) { |_v| initialize_project }
          opts.on('-o', '--out [FILE|DIR|URL]', *out_msg) { |v| out_stream v }
          opts.on('-t TAG_EXPRESSION', '--tags TAG_EXPRESSION', *tags_msg) { |v| add_tag v }
          opts.on('-n NAME', '--name NAME', *name_msg) { |v| add_option :name_regexps, /#{v}/ }
          opts.on('-e', '--exclude PATTERN', *exclude_msg) { |v| add_option :excludes, Regexp.new(v) }
          opts.on(PROFILE_SHORT_FLAG, "#{PROFILE_LONG_FLAG} PROFILE", *profile_short_flag_msg) { |v| add_profile v }
          opts.on(NO_PROFILE_SHORT_FLAG, NO_PROFILE_LONG_FLAG, *no_profile_short_flag_msg) { |_v| disable_profile_loading }
          opts.on('-c', '--[no-]color', *color_msg) { |v| color v }
          opts.on('-d', '--dry-run', *dry_run_msg) { set_dry_run_and_duration }
          opts.on('-m', '--no-multiline', "Don't print multiline strings and tables under steps.") { set_option :no_multiline }
          opts.on('-s', '--no-source', "Don't print the file and line of the step definition with the steps.") { set_option :source, false }
          opts.on('-i', '--no-snippets', "Don't print snippets for pending steps.") { set_option :snippets, false }
          opts.on('-I', '--snippet-type TYPE', *snippet_type_msg) { |v| set_option :snippet_type, v.to_sym }
          opts.on('-q', '--quiet', 'Alias for --no-snippets --no-source --no-duration --publish-quiet.') { shut_up }
          opts.on('--no-duration', "Don't print the duration at the end of the summary") { set_option :duration, false }
          opts.on('-b', '--backtrace', 'Show full backtrace for all errors.') { Cucumber.use_full_backtrace = true }
          opts.on('-S', '--[no-]strict', *strict_msg) { |setting| set_strict(setting) }
          opts.on('--[no-]strict-undefined', 'Fail if there are any undefined results.') { |setting| set_strict(setting, :undefined) }
          opts.on('--[no-]strict-pending', 'Fail if there are any pending results.') { |setting| set_strict(setting, :pending) }
          opts.on('--[no-]strict-flaky', 'Fail if there are any flaky results.') { |setting| set_strict(setting, :flaky) }
          opts.on('-w', '--wip', 'Fail if there are any passing scenarios.') { set_option :wip }
          opts.on('-v', '--verbose', 'Show the files and features loaded.') { set_option :verbose }
          opts.on('-g', '--guess', 'Guess best match for Ambiguous steps.') { set_option :guess }
          opts.on('-l', '--lines LINES', *lines_msg) { |lines| set_option :lines, lines }
          opts.on('-x', '--expand', 'Expand Scenario Outline Tables in output.') { set_option :expand }

          opts.on('--order TYPE[:SEED]', 'Run examples in the specified order. Available types:',
                  *<<-TEXT.split("\n")) do |order|
  [defined]     Run scenarios in the order they were defined (default).
  [random]      Shuffle scenarios before running.
Specify SEED to reproduce the shuffling from a previous run.
  e.g. --order random:5738
                  TEXT
            @options[:order], @options[:seed] = *order.split(':')
            raise "'#{@options[:order]}' is not a recognised order type. Please use one of #{ORDER_TYPES.join(', ')}." unless ORDER_TYPES.include?(@options[:order])
          end

          opts.on_tail('--version', 'Show version.') { exit_ok(Cucumber::VERSION) }
          opts.on_tail('-h', '--help', "You're looking at it.") { exit_ok(opts.help) }
        end.parse!

        process_publish_options

        @args.map! { |a| "#{a}:#{@options[:lines]}" } if @options[:lines]

        extract_environment_variables
        @options[:paths] = @args.dup # whatver is left over

        check_formatter_stream_conflicts

        merge_profiles

        self
      end
to_hash() click to toggle source
# File lib/cucumber/cli/options.rb, line 185
def to_hash
  Hash(@options)
end

Private Instance Methods

add_option(option, value) click to toggle source
# File lib/cucumber/cli/options.rb, line 398
def add_option(option, value)
  @options[option] << value
end
add_profile(p) click to toggle source
# File lib/cucumber/cli/options.rb, line 428
def add_profile(p)
  @profiles << p
end
add_tag(value) click to toggle source
# File lib/cucumber/cli/options.rb, line 402
def add_tag(value)
  raise("Found tags option '#{value}'. '~@tag' is no longer supported, use 'not @tag' instead.") if value.include?('~')
  raise("Found tags option '#{value}'. '@tag1,@tag2' is no longer supported, use '@tag or @tag2' instead.") if value.include?(',')
  @options[:tag_expressions] << value.gsub(/(@\w+)(:\d+)?/, '\1')
  add_tag_limits(value)
end
add_tag_limit(tag_limits, tag_name, limit) click to toggle source
# File lib/cucumber/cli/options.rb, line 415
def add_tag_limit(tag_limits, tag_name, limit)
  raise "Inconsistent tag limits for #{tag_name}: #{tag_limits[tag_name]} and #{limit}" if tag_limits[tag_name] && tag_limits[tag_name] != limit
  tag_limits[tag_name] = limit
end
add_tag_limits(value) click to toggle source
# File lib/cucumber/cli/options.rb, line 409
def add_tag_limits(value)
  value.split(/[, ]/).map { |part| TAG_LIMIT_MATCHER.match(part) }.compact.each do |matchdata|
    add_tag_limit(@options[:tag_limits], matchdata[:tag_name], matchdata[:limit].to_i)
  end
end
banner() click to toggle source
color(color) click to toggle source
# File lib/cucumber/cli/options.rb, line 420
def color(color)
  Cucumber::Term::ANSIColor.coloring = color
end
color_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 208
def color_msg
  [
    'Whether or not to use ANSI color in the output. Cucumber decides',
    'based on your platform and the output destination if not specified.'
  ]
end
default_options() click to toggle source
# File lib/cucumber/cli/options.rb, line 597
def default_options
  {
    strict: Cucumber::Core::Test::Result::StrictConfiguration.new,
    require: [],
    dry_run: false,
    formats: [],
    excludes: [],
    tag_expressions: [],
    tag_limits: {},
    name_regexps: [],
    env_vars: {},
    diff_enabled: true,
    snippets: true,
    source: true,
    duration: true,
    retry: 0
  }
end
default_profile_should_be_used?() click to toggle source
# File lib/cucumber/cli/options.rb, line 499
def default_profile_should_be_used?
  @profiles.empty? &&
    profile_loader.cucumber_yml_defined? &&
    profile_loader.profile?(@default_profile)
end
disable_profile_loading() click to toggle source
# File lib/cucumber/cli/options.rb, line 390
def disable_profile_loading
  @disable_profile_loading = true
end
disable_profile_loading?() click to toggle source
# File lib/cucumber/cli/options.rb, line 470
def disable_profile_loading?
  @disable_profile_loading
end
dry_run_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 215
def dry_run_msg
  ['Invokes formatters without executing the steps.']
end
exclude_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 219
def exclude_msg
  ["Don't run feature files or require ruby files matching PATTERN"]
end
exit_ok(text) click to toggle source
# File lib/cucumber/cli/options.rb, line 441
def exit_ok(text)
  @out_stream.puts text
  Kernel.exit(0)
end
extract_environment_variables() click to toggle source
# File lib/cucumber/cli/options.rb, line 461
def extract_environment_variables
  @args.delete_if do |arg|
    if arg =~ /^(\w+)=(.*)$/
      @options[:env_vars][Regexp.last_match(1)] = Regexp.last_match(2)
      true
    end
  end
end
format_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 223
def format_msg
  ['How to format features (Default: pretty). Available formats:']
end
i18n_keywords_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 233
def i18n_keywords_msg
  [
    'List keywords for in a particular language',
    %(Run with "--i18n help" to see all languages)
  ]
end
i18n_languages_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 227
def i18n_languages_msg
  [
    'List all available languages'
  ]
end
indicate_invalid_language_and_exit(lang) click to toggle source
# File lib/cucumber/cli/options.rb, line 547
def indicate_invalid_language_and_exit(lang)
  @out_stream.write("Invalid language '#{lang}'. Available languages are:\n")
  list_languages_and_exit
end
init_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 240
def init_msg
  [
    'Initializes folder structure and generates conventional files for',
    'a Cucumber project.'
  ]
end
initialize_project() click to toggle source
# File lib/cucumber/cli/options.rb, line 424
def initialize_project
  ProjectInitializer.new.run && Kernel.exit(0)
end
language(lang) click to toggle source
# File lib/cucumber/cli/options.rb, line 383
def language(lang)
  require 'gherkin/dialect'

  return indicate_invalid_language_and_exit(lang) unless ::Gherkin::DIALECTS.key?(lang)
  list_keywords_and_exit(lang)
end
lines_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 247
def lines_msg
  ['Run given line numbers. Equivalent to FILE:LINE syntax']
end
list_keywords_and_exit(lang) click to toggle source
# File lib/cucumber/cli/options.rb, line 552
def list_keywords_and_exit(lang)
  require 'gherkin/dialect'
  language = ::Gherkin::Dialect.for(lang)
  data = Cucumber::MultilineArgument::DataTable.from(
    [
      ['feature', to_keywords_string(language.feature_keywords)],
      ['background', to_keywords_string(language.background_keywords)],
      ['scenario', to_keywords_string(language.scenario_keywords)],
      ['scenario_outline', to_keywords_string(language.scenario_outline_keywords)],
      ['examples', to_keywords_string(language.examples_keywords)],
      ['given', to_keywords_string(language.given_keywords)],
      ['when', to_keywords_string(language.when_keywords)],
      ['then', to_keywords_string(language.then_keywords)],
      ['and', to_keywords_string(language.and_keywords)],
      ['but', to_keywords_string(language.but_keywords)],
      ['given (code)', to_code_keywords_string(language.given_keywords)],
      ['when (code)', to_code_keywords_string(language.when_keywords)],
      ['then (code)', to_code_keywords_string(language.then_keywords)],
      ['and (code)', to_code_keywords_string(language.and_keywords)],
      ['but (code)', to_code_keywords_string(language.but_keywords)]
    ]
  )
  @out_stream.write(data.to_s(color: false, prefixes: Hash.new('')))
  Kernel.exit(0)
end
list_languages_and_exit() click to toggle source
# File lib/cucumber/cli/options.rb, line 578
def list_languages_and_exit
  require 'gherkin/dialect'
  data = Cucumber::MultilineArgument::DataTable.from(
    ::Gherkin::DIALECTS.keys.map do |key|
      [key, ::Gherkin::DIALECTS[key].fetch('name'), ::Gherkin::DIALECTS[key].fetch('native')]
    end
  )
  @out_stream.write(data.to_s(color: false, prefixes: Hash.new('')))
  Kernel.exit(0)
end
merge_profiles() click to toggle source
# File lib/cucumber/cli/options.rb, line 474
def merge_profiles
  if @disable_profile_loading
    @out_stream.puts 'Disabling profiles...'
    return
  end

  @profiles << @default_profile if default_profile_should_be_used?

  @profiles.each do |profile|
    merge_with_profile(profile)
  end

  @options[:profiles] = @profiles
end
merge_tag_limits(option_limits, other_limits) click to toggle source
# File lib/cucumber/cli/options.rb, line 543
def merge_tag_limits(option_limits, other_limits)
  other_limits.each { |key, value| add_tag_limit(option_limits, key, value) }
end
merge_with_profile(profile) click to toggle source
# File lib/cucumber/cli/options.rb, line 489
def merge_with_profile(profile)
  profile_args = profile_loader.args_from(profile)
  profile_options = Options.parse(
    profile_args, @out_stream, @error_stream,
    skip_profile_information: true,
    profile_loader: profile_loader
  )
  reverse_merge(profile_options)
end
name_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 271
def name_msg
  [
    'Only execute the feature elements which match part of the given name.',
    'If this option is given more than once, it will match against all the',
    'given names.'
  ]
end
no_profile_short_flag_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 251
def no_profile_short_flag_msg
  [
    "Disables all profile loading to avoid using the 'default' profile."
  ]
end
non_stdout_formats() click to toggle source
# File lib/cucumber/cli/options.rb, line 394
def non_stdout_formats
  @options[:formats].reject { |_, _, output| output == @out_stream }
end
out_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 320
def out_msg
  [
    'Write output to a file/directory/URL instead of STDOUT. This option',
    'applies to the previously specified --format, or the',
    'default format if no format is specified. Check the specific',
    "formatter's docs to see whether to pass a file, dir or URL.",
    "\n",
    'When using a URL, the output of the formatter will be sent as the HTTP request body.',
    'HTTP headers and request method can be set with cURL like options.',
    'Example: --out "http://example.com -X POST -H Content-Type:text/json"'
  ]
end
out_stream(v) click to toggle source
# File lib/cucumber/cli/options.rb, line 292
def out_stream(v)
  @options[:formats] << ['pretty', {}, nil] if @options[:formats].empty?
  @options[:formats][-1][2] = v
end
parse_formats(v) click to toggle source
# File lib/cucumber/cli/options.rb, line 286
def parse_formats(v)
  formatter, *formatter_options = v.split(',')
  options_hash = Hash[formatter_options.map { |s| s.split('=') }]
  [formatter, options_hash]
end
process_publish_options() click to toggle source
# File lib/cucumber/cli/options.rb, line 196
def process_publish_options
  @options[:publish_enabled] = true if truthy_string?(ENV['CUCUMBER_PUBLISH_ENABLED']) || ENV['CUCUMBER_PUBLISH_TOKEN']
  @options[:formats] << publisher if @options[:publish_enabled]

  @options[:publish_quiet] = true if truthy_string?(ENV['CUCUMBER_PUBLISH_QUIET'])
end
profile_loader() click to toggle source
# File lib/cucumber/cli/options.rb, line 505
def profile_loader
  @profile_loader ||= ProfileLoader.new
end
profile_short_flag_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 257
def profile_short_flag_msg
  [
    'Pull commandline arguments from cucumber.yml which can be defined as',
    "strings or arrays.  When a 'default' profile is defined and no profile",
    'is specified it is always used. (Unless disabled, see -P below.)',
    'When feature files are defined in a profile and on the command line',
    'then only the ones from the command line are used.'
  ]
end
publisher() click to toggle source
# File lib/cucumber/cli/options.rb, line 377
def publisher
  url = CUCUMBER_PUBLISH_URL
  url += %( -H "Authorization: Bearer #{ENV['CUCUMBER_PUBLISH_TOKEN']}") if ENV['CUCUMBER_PUBLISH_TOKEN']
  ['message', {}, url]
end
require_files(v) click to toggle source
# File lib/cucumber/cli/options.rb, line 366
def require_files(v)
  @options[:require] << v
  return unless Cucumber::JRUBY && File.directory?(v)
  require 'java'
  $CLASSPATH << v
end
require_files_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 333
def require_files_msg
  [
    'Require files before executing the features. If this',
    'option is not specified, all *.rb files that are',
    'siblings of or below the features will be loaded auto-',
    'matically. Automatic loading is disabled when this',
    'option is specified; all loading becomes explicit.',
    'Files in directories named "support" are still always',
    'loaded first when their parent directories are',
    'required or if the "support" directories themselves are',
    'explicitly required.',
    'This option can be specified multiple times.'
  ]
end
require_jars(jars) click to toggle source
# File lib/cucumber/cli/options.rb, line 373
def require_jars(jars)
  Dir["#{jars}/**/*.jar"].sort.each { |jar| require jar }
end
retry_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 267
def retry_msg
  ['Specify the number of times to retry failing tests (default: 0)']
end
reverse_merge(other_options) click to toggle source
# File lib/cucumber/cli/options.rb, line 509
def reverse_merge(other_options) # rubocop:disable Metrics/AbcSize
  @options = other_options.options.merge(@options)
  @options[:require] += other_options[:require]
  @options[:excludes] += other_options[:excludes]
  @options[:name_regexps] += other_options[:name_regexps]
  @options[:tag_expressions] += other_options[:tag_expressions]
  merge_tag_limits(@options[:tag_limits], other_options[:tag_limits])
  @options[:env_vars] = other_options[:env_vars].merge(@options[:env_vars])
  if @options[:paths].empty?
    @options[:paths] = other_options[:paths]
  else
    @overridden_paths += (other_options[:paths] - @options[:paths])
  end
  @options[:source] &= other_options[:source]
  @options[:snippets] &= other_options[:snippets]
  @options[:duration] &= other_options[:duration]
  @options[:strict] = other_options[:strict].merge!(@options[:strict])
  @options[:dry_run] |= other_options[:dry_run]

  @profiles += other_options.profiles
  @expanded_args += other_options.expanded_args

  if @options[:formats].empty?
    @options[:formats] = other_options[:formats]
  else
    @options[:formats] += other_options[:formats]
    @options[:formats] = stdout_formats[0..0] + non_stdout_formats
  end

  @options[:retry] = other_options[:retry] if @options[:retry].zero?

  self
end
set_dry_run_and_duration() click to toggle source
# File lib/cucumber/cli/options.rb, line 436
def set_dry_run_and_duration
  @options[:dry_run] = true
  @options[:duration] = false
end
set_option(option, value = nil) click to toggle source
# File lib/cucumber/cli/options.rb, line 432
def set_option(option, value = nil)
  @options[option] = value.nil? ? true : value
end
set_strict(setting, type = nil) click to toggle source
# File lib/cucumber/cli/options.rb, line 453
def set_strict(setting, type = nil)
  @options[:strict].set_strict(setting, type)
end
shut_up() click to toggle source
# File lib/cucumber/cli/options.rb, line 446
def shut_up
  @options[:publish_quiet] = true
  @options[:snippets] = false
  @options[:source] = false
  @options[:duration] = false
end
snippet_type_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 348
def snippet_type_msg
  [
    'Use different snippet type (Default: cucumber_expression). Available types:',
    Cucumber::Glue::RegistryAndMore.cli_snippet_type_options
  ].flatten
end
stdout_formats() click to toggle source
# File lib/cucumber/cli/options.rb, line 457
def stdout_formats
  @options[:formats].select { |_, _, output| output == @out_stream }
end
strict_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 279
def strict_msg
  [
    'Fail if there are any strict affected results ',
    '(that is undefined, pending or flaky results).'
  ]
end
tags_msg() click to toggle source
# File lib/cucumber/cli/options.rb, line 297
def tags_msg
  [
    'Only execute the features or scenarios with tags matching TAG_EXPRESSION.',
    'Scenarios inherit tags declared on the Feature level. The simplest',
    'TAG_EXPRESSION is simply a tag. Example: --tags @dev. To represent',
    "boolean NOT preceed the tag with 'not '. Example: --tags 'not @dev'.",
    'A tag expression can have several tags separated by an or which represents',
    "logical OR. Example: --tags '@dev or @wip'. The --tags option can be specified",
    'A tag expression can have several tags separated by an and which represents',
    "logical AND. Example: --tags '@dev and @wip'. The --tags option can be specified",
    'several times, and this also represents logical AND.',
    "Example: --tags '@foo or not @bar' --tags @zap. This represents the boolean",
    'expression (@foo || !@bar) && @zap.',
    "\n",
    'Beware that if you want to use several negative tags to exclude several tags',
    "you have to use logical AND: --tags 'not @fixme and not @buggy'.",
    "\n",
    'Tags can be given a threshold to limit the number of occurrences.',
    'Example: --tags @qa:3 will fail if there are more than 3 occurrences of the @qa tag.',
    'This can be practical if you are practicing Kanban or CONWIP.'
  ]
end
to_code_keywords_string(list) click to toggle source
# File lib/cucumber/cli/options.rb, line 593
def to_code_keywords_string(list)
  to_keywords_string(Cucumber::Gherkin::I18n.code_keywords_for(list))
end
to_keywords_string(list) click to toggle source
# File lib/cucumber/cli/options.rb, line 589
def to_keywords_string(list)
  list.map { |item| "\"#{item}\"" }.join(', ')
end
truthy_string?(str) click to toggle source
# File lib/cucumber/cli/options.rb, line 203
def truthy_string?(str)
  return false if str.nil?
  str !~ /^(false|no|0)$/i
end