Class: RDoc::Options

Inherits:
Object
  • Object
show all
Defined in:
lib/rdoc/options.rb

Overview

RDoc::Options handles the parsing and storage of options

Saved Options

You can save some options like the markup format in the .rdoc_options file in your gem. The easiest way to do this is:

rdoc --markup tomdoc --write-options

Which will automatically create the file and fill it with the options you specified.

The following options will not be saved since they interfere with the user’s preferences or with the normal operation of RDoc:

  • --coverage-report

  • --dry-run

  • --encoding

  • --force-update

  • --format

  • --pipe

  • --quiet

  • --template

  • --verbose

Custom Options

Generators can hook into RDoc::Options to add generator-specific command line options.

When --format is encountered in ARGV, RDoc calls ::setup_options on the generator class to add extra options to the option parser. Options for custom generators must occur after --format. rdoc --help will list options for all installed generators.

Example:

class RDoc::Generator::Spellcheck
  RDoc::RDoc.add_generator self

  def self.setup_options rdoc_options
    op = rdoc_options.option_parser

    op.on('--spell-dictionary DICTIONARY',
          RDoc::Options::Path) do |dictionary|
      rdoc_options.spell_dictionary = dictionary
    end
  end
end

Of course, RDoc::Options does not respond to spell_dictionary by default so you will need to add it:

class RDoc::Options

  ##
  # The spell dictionary used by the spell-checking plugin.

  attr_accessor :spell_dictionary

end

Option Validators

OptionParser validators will validate and cast user input values. In addition to the validators that ship with OptionParser (String, Integer, Float, TrueClass, FalseClass, Array, Regexp, Date, Time, URI, etc.), RDoc::Options adds Path, PathArray and Template.

Constant Summary collapse

DEPRECATED =

The deprecated options.

{
  '--accessor'      => 'support discontinued',
  '--diagram'       => 'support discontinued',
  '--help-output'   => 'support discontinued',
  '--image-format'  => 'was an option for --diagram',
  '--inline-source' => 'source code is now always inlined',
  '--merge'         => 'ri now always merges class information',
  '--one-file'      => 'support discontinued',
  '--op-name'       => 'support discontinued',
  '--opname'        => 'support discontinued',
  '--promiscuous'   => 'files always only document their content',
  '--ri-system'     => 'Ruby installers use other techniques',
}
SPECIAL =

RDoc options ignored (or handled specially) by –write-options

%w[
coverage_report
dry_run
encoding
files
force_output
force_update
generator
generator_name
generator_options
generators
op_dir
option_parser
pipe
rdoc_include
root
static_path
stylesheet_url
template
template_dir
update_output_dir
verbosity
write_options
Directory =

Option validator for OptionParser that matches a directory that exists on the filesystem.

Object.new
Path =

Option validator for OptionParser that matches a file or directory that exists on the filesystem.

Object.new
PathArray =

Option validator for OptionParser that matches a comma-separated list of files or directories that exist on the filesystem.

Object.new
Template =

Option validator for OptionParser that matches a template directory for an installed generator that lives in "rdoc/generator/template/#{template_name}"

Object.new

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Options

:nodoc:



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# File 'lib/rdoc/options.rb', line 330

def initialize # :nodoc:
  init_ivars
end

Instance Attribute Details

#charset ⇒ Object

Character-set for HTML output. #encoding is preferred over #charset



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# File 'lib/rdoc/options.rb', line 149

def charset
  @charset
end

#coverage_report ⇒ Object

If true, only report on undocumented files



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# File 'lib/rdoc/options.rb', line 231

def coverage_report
  @coverage_report
end

#dry_run ⇒ Object

If true, RDoc will not write any files.



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# File 'lib/rdoc/options.rb', line 154

def dry_run
  @dry_run
end

#encoding ⇒ Object

The output encoding. All input files will be transcoded to this encoding.

The default encoding is UTF-8. This is set via –encoding.



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# File 'lib/rdoc/options.rb', line 161

def encoding
  @encoding
end

#exclude ⇒ Object

Files matching this pattern will be excluded



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# File 'lib/rdoc/options.rb', line 166

def exclude
  @exclude
end

#files ⇒ Object

The list of files to be processed



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# File 'lib/rdoc/options.rb', line 171

def files
  @files
end

#force_output ⇒ Object

Create the output even if the output directory does not look like an rdoc output directory



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# File 'lib/rdoc/options.rb', line 177

def force_output
  @force_output
end

#force_update ⇒ Object

Scan newer sources than the flag file if true.



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# File 'lib/rdoc/options.rb', line 182

def force_update
  @force_update
end

#formatter ⇒ Object

Formatter to mark up text with



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# File 'lib/rdoc/options.rb', line 187

def formatter
  @formatter
end

#generator ⇒ Object

Description of the output generator (set with the --format option)



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# File 'lib/rdoc/options.rb', line 192

def generator
  @generator
end

#generator_name ⇒ Object (readonly)

For #==



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# File 'lib/rdoc/options.rb', line 197

def generator_name
  @generator_name
end

#generator_options ⇒ Object

Loaded generator options. Used to prevent –help from loading the same options multiple times.



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# File 'lib/rdoc/options.rb', line 203

def generator_options
  @generator_options
end

#hyperlink_all ⇒ Object

Old rdoc behavior: hyperlink all words that match a method name, even if not preceded by ‘#’ or ‘::’



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# File 'lib/rdoc/options.rb', line 209

def hyperlink_all
  @hyperlink_all
end

#line_numbers ⇒ Object

Include line numbers in the source code



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# File 'lib/rdoc/options.rb', line 214

def line_numbers
  @line_numbers
end

#main_page ⇒ Object

Name of the file, class or module to display in the initial index page (if not specified the first file we encounter is used)



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# File 'lib/rdoc/options.rb', line 220

def main_page
  @main_page
end

#markup ⇒ Object

The default markup format. The default is ‘rdoc’. ‘markdown’, ‘tomdoc’ and ‘rd’ are also built-in.



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# File 'lib/rdoc/options.rb', line 226

def markup
  @markup
end

#op_dir ⇒ Object

The name of the output directory



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# File 'lib/rdoc/options.rb', line 236

def op_dir
  @op_dir
end

#option_parser ⇒ Object

The OptionParser for this instance



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# File 'lib/rdoc/options.rb', line 241

def option_parser
  @option_parser
end

#output_decoration ⇒ Object

Output heading decorations?



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# File 'lib/rdoc/options.rb', line 245

def output_decoration
  @output_decoration
end

#page_dir ⇒ Object

Directory where guides, FAQ, and other pages not associated with a class live. You may leave this unset if these are at the root of your project.



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# File 'lib/rdoc/options.rb', line 251

def page_dir
  @page_dir
end

#pipe ⇒ Object

Is RDoc in pipe mode?



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# File 'lib/rdoc/options.rb', line 256

def pipe
  @pipe
end

#rdoc_include ⇒ Object

Array of directories to search for files to satisfy an :include:



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# File 'lib/rdoc/options.rb', line 261

def rdoc_include
  @rdoc_include
end

#root ⇒ Object

Root of the source documentation will be generated for. Set this when building documentation outside the source directory. Defaults to the current directory.



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# File 'lib/rdoc/options.rb', line 268

def root
  @root
end

#show_hash ⇒ Object

Include the ‘#’ at the front of hyperlinked instance method names



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# File 'lib/rdoc/options.rb', line 273

def show_hash
  @show_hash
end

#static_path ⇒ Object

Directory to copy static files from



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# File 'lib/rdoc/options.rb', line 278

def static_path
  @static_path
end

#tab_width ⇒ Object

The number of columns in a tab



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# File 'lib/rdoc/options.rb', line 283

def tab_width
  @tab_width
end

#template ⇒ Object

Template to be used when generating output



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# File 'lib/rdoc/options.rb', line 288

def template
  @template
end

#template_dir ⇒ Object

Directory the template lives in



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# File 'lib/rdoc/options.rb', line 293

def template_dir
  @template_dir
end

#template_stylesheets ⇒ Object

Additional template stylesheets



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# File 'lib/rdoc/options.rb', line 298

def template_stylesheets
  @template_stylesheets
end

#title ⇒ Object

Documentation title



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# File 'lib/rdoc/options.rb', line 303

def title
  @title
end

#update_output_dir ⇒ Object

Should RDoc update the timestamps in the output dir?



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# File 'lib/rdoc/options.rb', line 308

def update_output_dir
  @update_output_dir
end

#verbosity ⇒ Object

Verbosity, zero means quiet



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# File 'lib/rdoc/options.rb', line 313

def verbosity
  @verbosity
end

#visibility ⇒ Object

Minimum visibility of a documented method. One of :public, :protected, :private or :nodoc.

The :nodoc visibility ignores all directives related to visibility. The other visibilities may be overridden on a per-method basis with the :doc: directive.



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# File 'lib/rdoc/options.rb', line 328

def visibility
  @visibility
end

#webcvs ⇒ Object

URL of web cvs frontend



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# File 'lib/rdoc/options.rb', line 318

def webcvs
  @webcvs
end

Instance Method Details

#==(other) ⇒ Object

:nodoc:



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# File 'lib/rdoc/options.rb', line 409

def == other # :nodoc:
  self.class === other and
    @encoding       == other.encoding       and
    @generator_name == other.generator_name and
    @hyperlink_all  == other.hyperlink_all  and
    @line_numbers   == other.line_numbers   and
    @main_page      == other.main_page      and
    @markup         == other.markup         and
    @op_dir         == other.op_dir         and
    @rdoc_include   == other.rdoc_include   and
    @show_hash      == other.show_hash      and
    @static_path    == other.static_path    and
    @tab_width      == other.tab_width      and
    @template       == other.template       and
    @title          == other.title          and
    @visibility     == other.visibility     and
    @webcvs         == other.webcvs
end

#check_files ⇒ Object

Check that the files on the command line exist



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# File 'lib/rdoc/options.rb', line 431

def check_files
  @files.delete_if do |file|
    if File.exist? file then
      if File.readable? file then
        false
      else
        warn "file '#{file}' not readable"

        true
      end
    else
      warn "file '#{file}' not found"

      true
    end
  end
end

#check_generator ⇒ Object

Ensure only one generator is loaded



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# File 'lib/rdoc/options.rb', line 452

def check_generator
  if @generator then
    raise OptionParser::InvalidOption,
      "generator already set to #{@generator_name}"
  end
end

#default_title=(string) ⇒ Object

Set the title, but only if not already set. Used to set the title from a source file, so that a title set from the command line will have the priority.



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# File 'lib/rdoc/options.rb', line 464

def default_title=(string)
  @title ||= string
end

#encode_with(coder) ⇒ Object

For dumping YAML



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# File 'lib/rdoc/options.rb', line 471

def encode_with coder # :nodoc:
  encoding = @encoding ? @encoding.name : nil

  coder.add 'encoding', encoding
  coder.add 'static_path',  sanitize_path(@static_path)
  coder.add 'rdoc_include', sanitize_path(@rdoc_include)

  ivars = instance_variables.map { |ivar| ivar.to_s[1..-1] }
  ivars -= SPECIAL

  ivars.sort.each do |ivar|
    coder.add ivar, instance_variable_get("@#{ivar}")
  end
end

#finish ⇒ Object

Completes any unfinished option setup business such as filtering for existent files, creating a regexp for #exclude and setting a default #template.



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# File 'lib/rdoc/options.rb', line 491

def finish
  @op_dir ||= 'doc'

  @rdoc_include << "." if @rdoc_include.empty?
  root = @root.to_s
  @rdoc_include << root unless @rdoc_include.include?(root)

  if @exclude.nil? or Regexp === @exclude then
    # done, #finish is being re-run
  elsif @exclude.empty? then
    @exclude = nil
  else
    @exclude = Regexp.new(@exclude.join("|"))
  end

  finish_page_dir

  check_files

  # If no template was specified, use the default template for the output
  # formatter

  unless @template then
    @template     = @generator_name
    @template_dir = template_dir_for @template
  end

  self
end

#finish_page_dir ⇒ Object

Fixes the page_dir to be relative to the root_dir and adds the page_dir to the files list.



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# File 'lib/rdoc/options.rb', line 525

def finish_page_dir
  return unless @page_dir

  @files << @page_dir.to_s

  page_dir = @page_dir.expand_path.relative_path_from @root

  @page_dir = page_dir
end

#generator_descriptions ⇒ Object

Returns a properly-space list of generators and their descriptions.



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# File 'lib/rdoc/options.rb', line 538

def generator_descriptions
  lengths = []

  generators = RDoc::RDoc::GENERATORS.map do |name, generator|
    lengths << name.length

    description = generator::DESCRIPTION if
      generator.const_defined? :DESCRIPTION

    [name, description]
  end

  longest = lengths.max

  generators.sort.map do |name, description|
    if description then
      "  %-*s - %s" % [longest, name, description]
    else
      "  #{name}"
    end
  end.join "\n"
end

#init_ivars ⇒ Object

:nodoc:



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# File 'lib/rdoc/options.rb', line 334

def init_ivars # :nodoc:
  @dry_run = false
  @exclude = []
  @files = nil
  @force_output = false
  @force_update = true
  @generator = nil
  @generator_name = nil
  @generator_options = []
  @generators = RDoc::RDoc::GENERATORS
  @hyperlink_all = false
  @line_numbers = false
  @main_page = nil
  @markup = 'rdoc'
  @coverage_report = false
  @op_dir = nil
  @page_dir = nil
  @pipe = false
  @output_decoration = true
  @rdoc_include = []
  @root = Pathname(Dir.pwd)
  @show_hash = false
  @static_path = []
  @stylesheet_url = nil # TODO remove in RDoc 4
  @tab_width = 8
  @template = nil
  @template_dir = nil
  @template_stylesheets = []
  @title = nil
  @update_output_dir = true
  @verbosity = 1
  @visibility = :protected
  @webcvs = nil
  @write_options = false

  if Object.const_defined? :Encoding then
    @encoding = Encoding::UTF_8
    @charset = @encoding.name
  else
    @encoding = nil
    @charset = 'UTF-8'
  end
end

#init_with(map) ⇒ Object

:nodoc:



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# File 'lib/rdoc/options.rb', line 378

def init_with map # :nodoc:
  init_ivars

  encoding = map['encoding']
  @encoding = if Object.const_defined? :Encoding then
                encoding ? Encoding.find(encoding) : encoding
              end

  @charset        = map['charset']
  @exclude        = map['exclude']
  @generator_name = map['generator_name']
  @hyperlink_all  = map['hyperlink_all']
  @line_numbers   = map['line_numbers']
  @main_page      = map['main_page']
  @markup         = map['markup']
  @op_dir         = map['op_dir']
  @show_hash      = map['show_hash']
  @tab_width      = map['tab_width']
  @template_dir   = map['template_dir']
  @title          = map['title']
  @visibility     = map['visibility']
  @webcvs         = map['webcvs']

  @rdoc_include = sanitize_path map['rdoc_include']
  @static_path  = sanitize_path map['static_path']
end

#parse(argv) ⇒ Object

Parses command line options.



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# File 'lib/rdoc/options.rb', line 564

def parse argv
  ignore_invalid = true

  argv.insert(0, *ENV['RDOCOPT'].split) if ENV['RDOCOPT']

  opts = OptionParser.new do |opt|
    @option_parser = opt
    opt.program_name = File.basename $0
    opt.version = RDoc::VERSION
    opt.release = nil
    opt.summary_indent = ' ' * 4
    opt.banner = <<-EOF
Usage: #{opt.program_name} [options] [names...]

Files are parsed, and the information they contain collected, before any
output is produced. This allows cross references between all files to be
resolved. If a name is a directory, it is traversed. If no names are
specified, all Ruby files in the current directory (and subdirectories) are
processed.

How RDoc generates output depends on the output formatter being used, and on
the options you give.

Options can be specified via the RDOCOPT environment variable, which
functions similar to the RUBYOPT environment variable for ruby.

  $ export RDOCOPT="--show-hash"

will make rdoc show hashes in method links by default.  Command-line options
always will override those in RDOCOPT.

Available formatters:

#{generator_descriptions}

RDoc understands the following file formats:

    EOF

    parsers = Hash.new { |h,parser| h[parser] = [] }

    RDoc::Parser.parsers.each do |regexp, parser|
      parsers[parser.name.sub('RDoc::Parser::', '')] << regexp.source
    end

    parsers.sort.each do |parser, regexp|
      opt.banner << "  - #{parser}: #{regexp.join ', '}\n"
    end
    opt.banner << "  - TomDoc:  Only in ruby files\n"

    opt.banner << "\n  The following options are deprecated:\n\n"

    name_length = DEPRECATED.keys.sort_by { |k| k.length }.last.length

    DEPRECATED.sort_by { |k,| k }.each do |name, reason|
      opt.banner << "    %*1$2$s  %3$s\n" % [-name_length, name, reason]
    end

    opt.accept Template do |template|
      template_dir = template_dir_for template

      unless template_dir then
        $stderr.puts "could not find template #{template}"
        nil
      else
        [template, template_dir]
      end
    end

    opt.accept Directory do |directory|
      directory = File.expand_path directory

      raise OptionParser::InvalidArgument unless File.directory? directory

      directory
    end

    opt.accept Path do |path|
      path = File.expand_path path

      raise OptionParser::InvalidArgument unless File.exist? path

      path
    end

    opt.accept PathArray do |paths,|
      paths = if paths then
                paths.split(',').map { |d| d unless d.empty? }
              end

      paths.map do |path|
        path = File.expand_path path

        raise OptionParser::InvalidArgument unless File.exist? path

        path
      end
    end

    opt.separator nil
    opt.separator "Parsing options:"
    opt.separator nil

    if Object.const_defined? :Encoding then
      opt.on("--encoding=ENCODING", "-e", Encoding.list.map { |e| e.name },
             "Specifies the output encoding.  All files",
             "read will be converted to this encoding.",
             "The default encoding is UTF-8.",
             "--encoding is preferred over --charset") do |value|
               @encoding = Encoding.find value
               @charset = @encoding.name # may not be valid value
             end

      opt.separator nil
    end

    opt.on("--all", "-a",
           "Synonym for --visibility=private.") do |value|
      @visibility = :private
    end

    opt.separator nil

    opt.on("--exclude=PATTERN", "-x", Regexp,
           "Do not process files or directories",
           "matching PATTERN.") do |value|
      @exclude << value
    end

    opt.separator nil

    opt.on("--extension=NEW=OLD", "-E",
           "Treat files ending with .new as if they",
           "ended with .old. Using '-E cgi=rb' will",
           "cause xxx.cgi to be parsed as a Ruby file.") do |value|
      new, old = value.split(/=/, 2)

      unless new and old then
        raise OptionParser::InvalidArgument, "Invalid parameter to '-E'"
      end

      unless RDoc::Parser.alias_extension old, new then
        raise OptionParser::InvalidArgument, "Unknown extension .#{old} to -E"
      end
    end

    opt.separator nil

    opt.on("--[no-]force-update", "-U",
           "Forces rdoc to scan all sources even if",
           "newer than the flag file.") do |value|
      @force_update = value
    end

    opt.separator nil

    opt.on("--pipe", "-p",
           "Convert RDoc on stdin to HTML") do
      @pipe = true
    end

    opt.separator nil

    opt.on("--tab-width=WIDTH", "-w", Integer,
           "Set the width of tab characters.") do |value|
      raise OptionParser::InvalidArgument,
            "#{value} is an invalid tab width" if value <= 0
      @tab_width = value
    end

    opt.separator nil

    opt.on("--visibility=VISIBILITY", "-V", RDoc::VISIBILITIES + [:nodoc],
           "Minimum visibility to document a method.",
           "One of 'public', 'protected' (the default),",
           "'private' or 'nodoc' (show everything)") do |value|
      @visibility = value
    end

    opt.separator nil

    markup_formats = RDoc::Text::MARKUP_FORMAT.keys.sort

    opt.on("--markup=MARKUP", markup_formats,
           "The markup format for the named files.",
           "The default is rdoc.  Valid values are:",
           markup_formats.join(', ')) do |value|
      @markup = value
    end

    opt.separator nil

    opt.on("--root=ROOT", Directory,
           "Root of the source tree documentation",
           "will be generated for.  Set this when",
           "building documentation outside the",
           "source directory.  Default is the",
           "current directory.") do |root|
      @root = Pathname(root)
    end

    opt.separator nil

    opt.on("--page-dir=DIR", Directory,
           "Directory where guides, your FAQ or",
           "other pages not associated with a class",
           "live.  Set this when you don't store",
           "such files at your project root.",
           "NOTE: Do not use the same file name in",
           "the page dir and the root of your project") do |page_dir|
      @page_dir = Pathname(page_dir)
    end

    opt.separator nil
    opt.separator "Common generator options:"
    opt.separator nil

    opt.on("--force-output", "-O",
           "Forces rdoc to write the output files,",
           "even if the output directory exists",
           "and does not seem to have been created",
           "by rdoc.") do |value|
      @force_output = value
    end

    opt.separator nil

    generator_text = @generators.keys.map { |name| "  #{name}" }.sort

    opt.on("-f", "--fmt=FORMAT", "--format=FORMAT", @generators.keys,
           "Set the output formatter.  One of:", *generator_text) do |value|
      check_generator

      @generator_name = value.downcase
      setup_generator
    end

    opt.separator nil

    opt.on("--include=DIRECTORIES", "-i", PathArray,
           "Set (or add to) the list of directories to",
           "be searched when satisfying :include:",
           "requests. Can be used more than once.") do |value|
      @rdoc_include.concat value.map { |dir| dir.strip }
    end

    opt.separator nil

    opt.on("--[no-]coverage-report=[LEVEL]", "--[no-]dcov", "-C", Integer,
           "Prints a report on undocumented items.",
           "Does not generate files.") do |value|
      value = 0 if value.nil? # Integer converts -C to nil

      @coverage_report = value
      @force_update = true if value
    end

    opt.separator nil

    opt.on("--output=DIR", "--op", "-o",
           "Set the output directory.") do |value|
      @op_dir = value
    end

    opt.separator nil

    opt.on("-d",
           "Deprecated --diagram option.",
           "Prevents firing debug mode",
           "with legacy invocation.") do |value|
    end

    opt.separator nil
    opt.separator 'HTML generator options:'
    opt.separator nil

    opt.on("--charset=CHARSET", "-c",
           "Specifies the output HTML character-set.",
           "Use --encoding instead of --charset if",
           "available.") do |value|
      @charset = value
    end

    opt.separator nil

    opt.on("--hyperlink-all", "-A",
           "Generate hyperlinks for all words that",
           "correspond to known methods, even if they",
           "do not start with '#' or '::' (legacy",
           "behavior).") do |value|
      @hyperlink_all = value
    end

    opt.separator nil

    opt.on("--main=NAME", "-m",
           "NAME will be the initial page displayed.") do |value|
      @main_page = value
    end

    opt.separator nil

    opt.on("--[no-]line-numbers", "-N",
           "Include line numbers in the source code.",
           "By default, only the number of the first",
           "line is displayed, in a leading comment.") do |value|
      @line_numbers = value
    end

    opt.separator nil

    opt.on("--show-hash", "-H",
           "A name of the form #name in a comment is a",
           "possible hyperlink to an instance method",
           "name. When displayed, the '#' is removed",
           "unless this option is specified.") do |value|
      @show_hash = value
    end

    opt.separator nil

    opt.on("--template=NAME", "-T", Template,
           "Set the template used when generating",
           "output. The default depends on the",
           "formatter used.") do |(template, template_dir)|
      @template     = template
      @template_dir = template_dir
    end

    opt.separator nil

    opt.on("--template-stylesheets=FILES", PathArray,
           "Set (or add to) the list of files to",
           "include with the html template.") do |value|
      @template_stylesheets << value
    end

    opt.separator nil

    opt.on("--title=TITLE", "-t",
           "Set TITLE as the title for HTML output.") do |value|
      @title = value
    end

    opt.separator nil

    opt.on("--copy-files=PATH", Path,
           "Specify a file or directory to copy static",
           "files from.",
           "If a file is given it will be copied into",
           "the output dir.  If a directory is given the",
           "entire directory will be copied.",
           "You can use this multiple times") do |value|
      @static_path << value
    end

    opt.separator nil

    opt.on("--webcvs=URL", "-W",
           "Specify a URL for linking to a web frontend",
           "to CVS. If the URL contains a '\%s', the",
           "name of the current file will be",
           "substituted; if the URL doesn't contain a",
           "'\%s', the filename will be appended to it.") do |value|
      @webcvs = value
    end

    opt.separator nil
    opt.separator "ri generator options:"
    opt.separator nil

    opt.on("--ri", "-r",
           "Generate output for use by `ri`. The files",
           "are stored in the '.rdoc' directory under",
           "your home directory unless overridden by a",
           "subsequent --op parameter, so no special",
           "privileges are needed.") do |value|
      check_generator

      @generator_name = "ri"
      @op_dir ||= RDoc::RI::Paths::HOMEDIR
      setup_generator
    end

    opt.separator nil

    opt.on("--ri-site", "-R",
           "Generate output for use by `ri`. The files",
           "are stored in a site-wide directory,",
           "making them accessible to others, so",
           "special privileges are needed.") do |value|
      check_generator

      @generator_name = "ri"
      @op_dir = RDoc::RI::Paths.site_dir
      setup_generator
    end

    opt.separator nil
    opt.separator "Generic options:"
    opt.separator nil

    opt.on("--write-options",
           "Write .rdoc_options to the current",
           "directory with the given options.  Not all",
           "options will be used.  See RDoc::Options",
           "for details.") do |value|
      @write_options = true
    end

    opt.separator nil

    opt.on("--[no-]dry-run",
           "Don't write any files") do |value|
      @dry_run = value
    end

    opt.separator nil

    opt.on("-D", "--[no-]debug",
           "Displays lots on internal stuff.") do |value|
      $DEBUG_RDOC = value
    end

    opt.separator nil

    opt.on("--[no-]ignore-invalid",
           "Ignore invalid options and continue",
           "(default true).") do |value|
      ignore_invalid = value
    end

    opt.separator nil

    opt.on("--quiet", "-q",
           "Don't show progress as we parse.") do |value|
      @verbosity = 0
    end

    opt.separator nil

    opt.on("--verbose", "-V",
           "Display extra progress as RDoc parses") do |value|
      @verbosity = 2
    end

    opt.separator nil

    opt.on("--version", "-v", "print the version") do
      puts opt.version
      exit
    end

    opt.separator nil

    opt.on("--help",
           "Display this help") do
      RDoc::RDoc::GENERATORS.each_key do |generator|
        setup_generator generator
      end

      puts opt.help
      exit
    end

    opt.separator nil
  end

  setup_generator 'darkfish' if
    argv.grep(/\A(-f|--fmt|--format|-r|-R|--ri|--ri-site)\b/).empty?

  deprecated = []
  invalid = []

  begin
    opts.parse! argv
  rescue OptionParser::ParseError => e
    if DEPRECATED[e.args.first] then
      deprecated << e.args.first
    elsif %w[--format --ri -r --ri-site -R].include? e.args.first then
      raise
    else
      invalid << e.args.join(' ')
    end

    retry
  end

  unless @generator then
    @generator = RDoc::Generator::Darkfish
    @generator_name = 'darkfish'
  end

  if @pipe and not argv.empty? then
    @pipe = false
    invalid << '-p (with files)'
  end

  unless quiet then
    deprecated.each do |opt|
      $stderr.puts 'option ' << opt << ' is deprecated: ' << DEPRECATED[opt]
    end
  end

  unless invalid.empty? then
    invalid = "invalid options: #{invalid.join ', '}"

    if ignore_invalid then
      unless quiet then
        $stderr.puts invalid
        $stderr.puts '(invalid options are ignored)'
      end
    else
      unless quiet then
        $stderr.puts opts
      end
      $stderr.puts invalid
      exit 1
    end
  end

  @files = argv.dup

  finish

  if @write_options then
    write_options
    exit
  end

  self
end

#quiet ⇒ Object

Don’t display progress as we process the files



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# File 'lib/rdoc/options.rb', line 1100

def quiet
  @verbosity.zero?
end

#quiet=(bool) ⇒ Object

Set quietness to bool



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# File 'lib/rdoc/options.rb', line 1107

def quiet= bool
  @verbosity = bool ? 0 : 1
end

#sanitize_path(path) ⇒ Object

Removes directories from path that are outside the current directory



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# File 'lib/rdoc/options.rb', line 1114

def sanitize_path path
  require 'pathname'
  dot = Pathname.new('.').expand_path

  path.reject do |item|
    path = Pathname.new(item).expand_path
    relative = path.relative_path_from(dot).to_s
    relative.start_with? '..'
  end
end

#setup_generator(generator_name = @generator_name) ⇒ Object

Set up an output generator for the named generator_name.

If the found generator responds to :setup_options it will be called with the options instance. This allows generators to add custom options or set default options.



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# File 'lib/rdoc/options.rb', line 1132

def setup_generator generator_name = @generator_name
  @generator = @generators[generator_name]

  unless @generator then
    raise OptionParser::InvalidArgument,
          "Invalid output formatter #{generator_name}"
  end

  return if @generator_options.include? @generator

  @generator_name = generator_name
  @generator_options << @generator

  if @generator.respond_to? :setup_options then
    @option_parser ||= OptionParser.new
    @generator.setup_options self
  end
end

#template_dir_for(template) ⇒ Object

Finds the template dir for template



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# File 'lib/rdoc/options.rb', line 1154

def template_dir_for template
  template_path = File.join 'rdoc', 'generator', 'template', template

  $LOAD_PATH.map do |path|
    File.join File.expand_path(path), template_path
  end.find do |dir|
    File.directory? dir
  end
end

#to_yaml(opts = {}) ⇒ Object

This is compatibility code for syck



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# File 'lib/rdoc/options.rb', line 1167

def to_yaml opts = {} # :nodoc:
  return super if YAML.const_defined?(:ENGINE) and not YAML::ENGINE.syck?

  YAML.quick_emit self, opts do |out|
    out.map taguri, to_yaml_style do |map|
      encode_with map
    end
  end
end

#warn(message) ⇒ Object

Displays a warning using Kernel#warn if we’re being verbose



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# File 'lib/rdoc/options.rb', line 1180

def warn message
  super message if @verbosity > 1
end

#write_options ⇒ Object

Writes the YAML file .rdoc_options to the current directory containing the parsed options.



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# File 'lib/rdoc/options.rb', line 1188

def write_options
  RDoc.load_yaml

  open '.rdoc_options', 'w' do |io|
    io.set_encoding Encoding::UTF_8 if Object.const_defined? :Encoding

    YAML.dump self, io
  end
end

#yaml_initialize(tag, map) ⇒ Object

:nodoc:



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# File 'lib/rdoc/options.rb', line 405

def yaml_initialize tag, map # :nodoc:
  init_with map
end