Class: RDoc::RDoc
Overview
This is the driver for generating RDoc output. It handles file parsing and generation of output.
To use this class to generate RDoc output via the API, the recommended way is:
rdoc = RDoc::RDoc.new
= RDoc::Options. # returns an RDoc::Options instance
# set extra options
rdoc.document
You can also generate output like the rdoc
executable:
rdoc = RDoc::RDoc.new
rdoc.document argv
Where argv
is an array of strings, each corresponding to an argument you’d give rdoc on the command line. See rdoc --help
for details.
Constant Summary collapse
- GENERATORS =
This is the list of supported output generators
{}
- UNCONDITIONALLY_SKIPPED_DIRECTORIES =
List of directory names always skipped
%w[CVS .svn .git].freeze
- TEST_SUITE_DIRECTORY_NAMES =
List of directory names skipped if test suites should be skipped
%w[spec test].freeze
Instance Attribute Summary collapse
-
#generator ⇒ Object
Generator instance used for creating output.
-
#last_modified ⇒ Object
readonly
Hash of files and their last modified times.
-
#options ⇒ Object
RDoc options.
-
#stats ⇒ Object
readonly
Accessor for statistics.
-
#store ⇒ Object
The current documentation store.
Class Method Summary collapse
-
.add_generator(klass) ⇒ Object
Add
klass
that can generate output after parsing. -
.current ⇒ Object
Active RDoc::RDoc instance.
-
.current=(rdoc) ⇒ Object
Sets the active RDoc::RDoc instance.
Instance Method Summary collapse
-
#document(options) ⇒ Object
Generates documentation or a coverage report depending upon the settings in
options
. -
#error(msg) ⇒ Object
Report an error message and exit.
-
#gather_files(files) ⇒ Object
Gathers a set of parseable files from the files and directories listed in
files
. -
#generate ⇒ Object
Generates documentation for
file_info
(from #parse_files) into the output dir using the generator selected by the RDoc options. -
#handle_pipe ⇒ Object
Turns RDoc from stdin into HTML.
-
#initialize ⇒ RDoc
constructor
Creates a new RDoc::RDoc instance.
-
#install_siginfo_handler ⇒ Object
Installs a siginfo handler that prints the current filename.
-
#list_files_in_directory(dir) ⇒ Object
Return a list of the files to be processed in a directory.
-
#normalized_file_list(relative_files, force_doc = false, exclude_pattern = nil) ⇒ Object
Given a list of files and directories, create a list of all the Ruby files they contain.
-
#output_flag_file(op_dir) ⇒ Object
Return the path name of the flag file in an output directory.
-
#parse_dot_doc_file(in_dir, filename) ⇒ Object
The .document file contains a list of file and directory name patterns, representing candidates for documentation.
-
#parse_file(filename) ⇒ Object
Parses
filename
and returns an RDoc::TopLevel. -
#parse_files(files) ⇒ Object
Parse each file on the command line, recursively entering directories.
-
#remove_siginfo_handler ⇒ Object
Removes a siginfo handler and replaces the previous.
-
#remove_unparseable(files) ⇒ Object
Removes file extensions known to be unparseable from
files
and TAGS files for emacs and vim. -
#setup_output_dir(dir, force) ⇒ Object
Create an output dir if it doesn’t exist.
-
#update_output_dir(op_dir, time, last = {}) ⇒ Object
Update the flag file in an output directory.
Constructor Details
#initialize ⇒ RDoc
Creates a new RDoc::RDoc instance. Call #document to parse files and generate documentation.
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# File 'lib/rdoc/rdoc.rb', line 100 def initialize @current = nil @generator = nil @last_modified = {} @old_siginfo = nil @options = nil @stats = nil @store = nil end |
Instance Attribute Details
#generator ⇒ Object
Generator instance used for creating output
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# File 'lib/rdoc/rdoc.rb', line 52 def generator @generator end |
#last_modified ⇒ Object (readonly)
Hash of files and their last modified times.
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# File 'lib/rdoc/rdoc.rb', line 57 def last_modified @last_modified end |
#stats ⇒ Object (readonly)
Accessor for statistics. Available after each call to parse_files
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# File 'lib/rdoc/rdoc.rb', line 67 def stats @stats end |
#store ⇒ Object
The current documentation store
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# File 'lib/rdoc/rdoc.rb', line 72 def store @store end |
Class Method Details
.add_generator(klass) ⇒ Object
Add klass
that can generate output after parsing
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# File 'lib/rdoc/rdoc.rb', line 77 def self.add_generator(klass) name = klass.name.sub(/^RDoc::Generator::/, '').downcase GENERATORS[name] = klass end |
.current ⇒ Object
Active RDoc::RDoc instance
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# File 'lib/rdoc/rdoc.rb', line 85 def self.current @current end |
.current=(rdoc) ⇒ Object
Sets the active RDoc::RDoc instance
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# File 'lib/rdoc/rdoc.rb', line 92 def self.current= rdoc @current = rdoc end |
Instance Method Details
#document(options) ⇒ Object
Generates documentation or a coverage report depending upon the settings in options
.
options
can be either an RDoc::Options instance or an array of strings equivalent to the strings that would be passed on the command line like %w[-q -o doc -t My\ Doc\ Title]
. #document will automatically call RDoc::Options#finish if an options instance was given.
For a list of options, see either RDoc::Options or rdoc --help
.
By default, output will be stored in a directory called “doc” below the current directory, so make sure you’re somewhere writable before invoking.
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# File 'lib/rdoc/rdoc.rb', line 450 def document self.store = RDoc::Store.new if RDoc::Options === then @options = else @options = RDoc::Options. @options.parse end @options.finish if @options.pipe then handle_pipe exit end unless @options.coverage_report then @last_modified = setup_output_dir @options.op_dir, @options.force_update end @store.encoding = @options.encoding @store.dry_run = @options.dry_run @store.main = @options.main_page @store.title = @options.title @store.path = @options.op_dir @start_time = Time.now @store.load_cache file_info = parse_files @options.files @options.default_title = "RDoc Documentation" @store.complete @options.visibility @stats.coverage_level = @options.coverage_report if @options.coverage_report then puts puts @stats.report.accept RDoc::Markup::ToRdoc.new elsif file_info.empty? then $stderr.puts "\nNo newer files." unless @options.quiet else gen_klass = @options.generator @generator = gen_klass.new @store, @options generate end if @stats and (@options.coverage_report or not @options.quiet) then puts puts @stats.summary.accept RDoc::Markup::ToRdoc.new end exit @stats.fully_documented? if @options.coverage_report end |
#error(msg) ⇒ Object
Report an error message and exit
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# File 'lib/rdoc/rdoc.rb', line 113 def error(msg) raise RDoc::Error, msg end |
#gather_files(files) ⇒ Object
Gathers a set of parseable files from the files and directories listed in files
.
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# File 'lib/rdoc/rdoc.rb', line 121 def gather_files files files = [@options.root.to_s] if files.empty? file_list = normalized_file_list files, true, @options.exclude file_list = remove_unparseable(file_list) if file_list.count {|name, mtime| file_list[name] = @last_modified[name] unless mtime mtime } > 0 @last_modified.replace file_list file_list.keys.sort else [] end end |
#generate ⇒ Object
Generates documentation for file_info
(from #parse_files) into the output dir using the generator selected by the RDoc options
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# File 'lib/rdoc/rdoc.rb', line 515 def generate if @options.dry_run then # do nothing @generator.generate else Dir.chdir @options.op_dir do unless @options.quiet then $stderr.puts "\nGenerating #{@generator.class.name.sub(/^.*::/, '')} format into #{Dir.pwd}..." end @generator.generate update_output_dir '.', @start_time, @last_modified end end end |
#handle_pipe ⇒ Object
Turns RDoc from stdin into HTML
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# File 'lib/rdoc/rdoc.rb', line 142 def handle_pipe @html = RDoc::Markup::ToHtml.new @options parser = RDoc::Text::MARKUP_FORMAT[@options.markup] document = parser.parse $stdin.read out = @html.convert document $stdout.write out end |
#install_siginfo_handler ⇒ Object
Installs a siginfo handler that prints the current filename.
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# File 'lib/rdoc/rdoc.rb', line 157 def install_siginfo_handler return unless Signal.list.include? 'INFO' @old_siginfo = trap 'INFO' do puts @current if @current end end |
#list_files_in_directory(dir) ⇒ Object
Return a list of the files to be processed in a directory. We know that this directory doesn’t have a .document file, so we’re looking for real files. However we may well contain subdirectories which must be tested for .document files.
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# File 'lib/rdoc/rdoc.rb', line 323 def list_files_in_directory dir files = Dir.glob File.join(dir, "*") normalized_file_list files, false, @options.exclude end |
#normalized_file_list(relative_files, force_doc = false, exclude_pattern = nil) ⇒ Object
Given a list of files and directories, create a list of all the Ruby files they contain.
If force_doc
is true we always add the given files, if false, only add files that we guarantee we can parse. It is true when looking at files given on the command line, false when recursing through subdirectories.
The effect of this is that if you want a file with a non-standard extension parsed, you must name it explicitly.
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# File 'lib/rdoc/rdoc.rb', line 275 def normalized_file_list(relative_files, force_doc = false, exclude_pattern = nil) file_list = {} relative_files.each do |rel_file_name| rel_file_name = rel_file_name.sub(/^\.\//, '') next if rel_file_name.end_with? 'created.rid' next if exclude_pattern && exclude_pattern =~ rel_file_name stat = File.stat rel_file_name rescue next case type = stat.ftype when "file" then mtime = (stat.mtime unless (last_modified = @last_modified[rel_file_name] and stat.mtime.to_i <= last_modified.to_i)) if force_doc or RDoc::Parser.can_parse(rel_file_name) then file_list[rel_file_name] = mtime end when "directory" then next if UNCONDITIONALLY_SKIPPED_DIRECTORIES.include?(rel_file_name) basename = File.basename(rel_file_name) next if .skip_tests && TEST_SUITE_DIRECTORY_NAMES.include?(basename) created_rid = File.join rel_file_name, "created.rid" next if File.file? created_rid dot_doc = File.join rel_file_name, RDoc::DOT_DOC_FILENAME if File.file? dot_doc then file_list.update(parse_dot_doc_file(rel_file_name, dot_doc)) else file_list.update(list_files_in_directory(rel_file_name)) end else warn "rdoc can't parse the #{type} #{rel_file_name}" end end file_list end |
#output_flag_file(op_dir) ⇒ Object
Return the path name of the flag file in an output directory.
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# File 'lib/rdoc/rdoc.rb', line 240 def output_flag_file(op_dir) File.join op_dir, "created.rid" end |
#parse_dot_doc_file(in_dir, filename) ⇒ Object
The .document file contains a list of file and directory name patterns, representing candidates for documentation. It may also contain comments (starting with ‘#’)
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# File 'lib/rdoc/rdoc.rb', line 249 def parse_dot_doc_file in_dir, filename # read and strip comments patterns = File.read(filename).gsub(/#.*/, '') result = {} patterns.split(' ').each do |patt| candidates = Dir.glob(File.join(in_dir, patt)) result.update normalized_file_list(candidates, false, @options.exclude) end result end |
#parse_file(filename) ⇒ Object
Parses filename
and returns an RDoc::TopLevel
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# File 'lib/rdoc/rdoc.rb', line 332 def parse_file filename encoding = @options.encoding filename = filename.encode encoding @stats.add_file filename return if RDoc::Parser.binary? filename content = RDoc::Encoding.read_file filename, encoding return unless content filename_path = Pathname(filename). begin relative_path = filename_path.relative_path_from @options.root rescue ArgumentError relative_path = filename_path end if @options.page_dir and relative_path.to_s.start_with? @options.page_dir.to_s then relative_path = relative_path.relative_path_from @options.page_dir end top_level = @store.add_file filename, relative_name: relative_path.to_s parser = RDoc::Parser.for top_level, filename, content, @options, @stats return unless parser parser.scan # restart documentation for the classes & modules found top_level.classes_or_modules.each do |cm| cm.done_documenting = false end top_level rescue Errno::EACCES => e $stderr.puts <<-EOF Unable to read #{filename}, #{e.} Please check the permissions for this file. Perhaps you do not have access to it or perhaps the original author's permissions are to restrictive. If the this is not your library please report a bug to the author. EOF rescue => e $stderr.puts <<-EOF Before reporting this, could you check that the file you're documenting has proper syntax: #{Gem.ruby} -c #{filename} RDoc is not a full Ruby parser and will fail when fed invalid ruby programs. The internal error was: \t(#{e.class}) #{e.} EOF $stderr.puts e.backtrace.join("\n\t") if $DEBUG_RDOC raise e nil end |
#parse_files(files) ⇒ Object
Parse each file on the command line, recursively entering directories.
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# File 'lib/rdoc/rdoc.rb', line 404 def parse_files files file_list = gather_files files @stats = RDoc::Stats.new @store, file_list.length, @options.verbosity return [] if file_list.empty? = @options.dup @stats.begin_adding file_info = file_list.map do |filename| @current = filename parse_file filename end.compact @stats.done_adding @options = file_info end |
#remove_siginfo_handler ⇒ Object
Removes a siginfo handler and replaces the previous
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# File 'lib/rdoc/rdoc.rb', line 534 def remove_siginfo_handler return unless Signal.list.key? 'INFO' handler = @old_siginfo || 'DEFAULT' trap 'INFO', handler end |
#remove_unparseable(files) ⇒ Object
Removes file extensions known to be unparseable from files
and TAGS files for emacs and vim.
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# File 'lib/rdoc/rdoc.rb', line 428 def remove_unparseable files files.reject do |file, *| file =~ /\.(?:class|eps|erb|scpt\.txt|svg|ttf|yml)$/i or (file =~ /tags$/i and /\A(\f\n[^,]+,\d+$|!_TAG_)/.match?(File.binread(file, 100))) end end |
#setup_output_dir(dir, force) ⇒ Object
Create an output dir if it doesn’t exist. If it does exist, but doesn’t contain the flag file created.rid
then we refuse to use it, as we may clobber some manually generated documentation
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# File 'lib/rdoc/rdoc.rb', line 170 def setup_output_dir(dir, force) flag_file = output_flag_file dir last = {} if @options.dry_run then # do nothing elsif File.exist? dir then error "#{dir} exists and is not a directory" unless File.directory? dir begin File.open flag_file do |io| unless force then Time.parse io.gets io.each do |line| file, time = line.split "\t", 2 time = Time.parse(time) rescue next last[file] = time end end end rescue SystemCallError, TypeError error <<-ERROR Directory #{dir} already exists, but it looks like it isn't an RDoc directory. Because RDoc doesn't want to risk destroying any of your existing files, you'll need to specify a different output directory name (using the --op <dir> option) ERROR end unless @options.force_output else FileUtils.mkdir_p dir FileUtils.touch flag_file end last end |
#update_output_dir(op_dir, time, last = {}) ⇒ Object
Update the flag file in an output directory.
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# File 'lib/rdoc/rdoc.rb', line 223 def update_output_dir(op_dir, time, last = {}) return if @options.dry_run or not @options.update_output_dir unless ENV['SOURCE_DATE_EPOCH'].nil? time = Time.at(ENV['SOURCE_DATE_EPOCH'].to_i).gmtime end File.open output_flag_file(op_dir), "w" do |f| f.puts time.rfc2822 last.each do |n, t| f.puts "#{n}\t#{t.rfc2822}" end end end |