class RDoc::Options
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.
Constants
- DEPRECATED
The deprecated options.
- Directory
Option validator for OptionParser that matches a directory that exists on the filesystem.
- Path
Option validator for OptionParser that matches a file or directory that exists on the filesystem.
- PathArray
Option validator for OptionParser that matches a comma-separated list of files or directories that exist on the filesystem.
- SPECIAL
RDoc options ignored (or handled specially) by –write-options
- Template
Option validator for OptionParser that matches a template directory for an installed generator that lives in
"rdoc/generator/template/#{template_name}"
Attributes
If true, only report on undocumented files
If true, RDoc will not write any files.
The output encoding. All input files will be transcoded to this encoding.
The default encoding is UTF-8. This is set via –encoding.
Files matching this pattern will be excluded
The list of files to be processed
Create the output even if the output directory does not look like an rdoc output directory
Scan newer sources than the flag file if true.
Formatter to mark up text with
Description of the output generator (set with the --format
option)
Loaded generator options. Used to prevent –help from loading the same options multiple times.
Old rdoc behavior: hyperlink all words that match a method name, even if not preceded by '#' or '::'
Include line numbers in the source code
Name of the file, class or module to display in the initial index page (if not specified the first file we encounter is used)
The default markup format. The default is 'rdoc'. 'markdown', 'tomdoc' and 'rd' are also built-in.
The name of the output directory
The OptionParser for this instance
Output heading decorations?
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.
Is RDoc in pipe mode?
Array of directories to search for files to satisfy an :include:
Root of the source documentation will be generated for. Set this when building documentation outside the source directory. Defaults to the current directory.
Include the '#' at the front of hyperlinked instance method names
Directory to copy static files from
The number of columns in a tab
Template to be used when generating output
Directory the template lives in
Additional template stylesheets
Documentation title
Should RDoc update the timestamps in the output dir?
Verbosity, zero means quiet
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.
URL of web cvs frontend
Public Instance Methods
Check that the files on the command line exist
# 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
Ensure only one generator is loaded
# File lib/rdoc/options.rb, line 452 def check_generator if @generator then raise OptionParser::InvalidOption, "generator already set to #{@generator_name}" end end
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.
# File lib/rdoc/options.rb, line 464 def default_title=(string) @title ||= string end
Completes any unfinished option setup business such as filtering for existent files, creating a regexp for exclude and setting a default template.
# 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
Returns a properly-space list of generators and their descriptions.
# 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
Parses command line options.
# 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
Don't display progress as we process the files
# File lib/rdoc/options.rb, line 1100 def quiet @verbosity.zero? end
Set quietness to bool
# File lib/rdoc/options.rb, line 1107 def quiet= bool @verbosity = bool ? 0 : 1 end
Removes directories from path
that are outside the current
directory
# 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
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.
# 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
Finds the template dir for template
# 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
Displays a warning using Kernel#warn if we're being verbose
# File lib/rdoc/options.rb, line 1180 def warn message super message if @verbosity > 1 end
Writes the YAML file .rdoc_options to the current directory containing the parsed options.
# 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