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Contents
module GLI
module Commands
module HelpModules
class OptionsFormatter
def initialize(flags_and_switches,sorter,wrapper_class)
@flags_and_switches = sorter.call(flags_and_switches)
@wrapper_class = wrapper_class
end
def format
list_formatter = ListFormatter.new(@flags_and_switches.map { |option|
if option.respond_to? :argument_name
[option_names_for_help_string(option,option.argument_name),description_with_default(option)]
else
[option_names_for_help_string(option),description_with_default(option)]
end
},@wrapper_class)
stringio = StringIO.new
list_formatter.output(stringio)
stringio.string
end
private
def description_with_default(option)
if option.kind_of? Flag
required = option.required? ? 'required, ' : ''
multiple = option.multiple? ? 'may be used more than once, ' : ''
String(option.description) + " (#{required}#{multiple}default: #{option.safe_default_value || 'none'})"
else
String(option.description) + (option.default_value ? " (default: enabled)" : "")
end
end
def option_names_for_help_string(option,arg_name=nil)
names = [option.name,Array(option.aliases)].flatten
names = names.map { |name| CommandLineOption.name_as_string(name,option.kind_of?(Switch) ? option.negatable? : false) }
if arg_name.nil?
names.join(', ')
else
if names[-1] =~ /^--/
names.join(', ') + "=#{arg_name}"
else
names.join(', ') + " #{arg_name}"
end
end
end
end
end
end
end
Version data entries
24 entries across 24 versions & 1 rubygems