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require 'rubygems'
require 'rubygems/user_interaction'
require 'fileutils'
require 'rdoc'
##
# Gem::RDoc provides methods to generate RDoc and ri data for installed gems
# upon gem installation.
#
# This file is automatically required by RubyGems 1.9 and newer.
class RDoc::RubygemsHook
include Gem::UserInteraction
@rdoc_version = nil
@specs = []
##
# Force installation of documentation?
attr_accessor :force
##
# Generate rdoc?
attr_accessor :generate_rdoc
##
# Generate ri data?
attr_accessor :generate_ri
class << self
##
# Loaded version of RDoc. Set by ::load_rdoc
attr_reader :rdoc_version
end
##
# Post installs hook that generates documentation for each specification in
# +specs+
def self.generation_hook installer, specs
types = installer.document
generate_rdoc = types.include? 'rdoc'
generate_ri = types.include? 'ri'
specs.each do |spec|
new(spec, generate_rdoc, generate_ri).generate
end
end
##
# Loads the RDoc generator
def self.load_rdoc
return if @rdoc_version
require 'rdoc/rdoc'
@rdoc_version = Gem::Version.new ::RDoc::VERSION
end
##
# Creates a new documentation generator for +spec+. RDoc and ri data
# generation can be disabled through +generate_rdoc+ and +generate_ri+
# respectively.
def initialize spec, generate_rdoc = true, generate_ri = true
@doc_dir = spec.doc_dir
@file_info = nil
@force = false
@rdoc = nil
@spec = spec
@generate_rdoc = generate_rdoc
@generate_ri = generate_ri
@rdoc_dir = spec.doc_dir 'rdoc'
@ri_dir = spec.doc_dir 'ri'
end
##
# Removes legacy rdoc arguments from +args+
#--
# TODO move to RDoc::Options
def delete_legacy_args args
args.delete '--inline-source'
args.delete '--promiscuous'
args.delete '-p'
args.delete '--one-file'
end
##
# Generates documentation using the named +generator+ ("darkfish" or "ri")
# and following the given +options+.
#
# Documentation will be generated into +destination+
def document generator, options, destination
options = options.dup
options.exclude ||= [] # TODO maybe move to RDoc::Options#finish
options.setup_generator generator
options.op_dir = destination
options.finish
@rdoc.options = options
@rdoc.generator = options.generator.new options
say "Installing #{generator} documentation for #{@spec.full_name}"
FileUtils.mkdir_p options.op_dir
Dir.chdir options.op_dir do
begin
@rdoc.class.current = @rdoc
@rdoc.generator.generate @file_info
ensure
@rdoc.class.current = nil
end
end
end
##
# Generates RDoc and ri data
def generate
return unless @generate_ri or @generate_rdoc
setup
::RDoc::RDoc.reset
options = ::RDoc::Options.new
options.default_title = "#{@spec.full_name} Documentation"
options.files = []
options.files.push(*@spec.require_paths)
options.files.push(*@spec.extra_rdoc_files)
args = @spec.rdoc_options
case config_args = Gem.configuration[:rdoc]
when String then
args = args.concat config_args.split
when Array then
args = args.concat config_args
end
delete_legacy_args args
options.parse args
options.quiet = !Gem.configuration.really_verbose
@rdoc = new_rdoc
@rdoc.options = options
Dir.chdir @spec.full_gem_path do
@file_info = @rdoc.parse_files options.files
end
document 'ri', options, @ri_dir if
@generate_ri and (@force or not File.exist? @ri_dir)
document 'darkfish', options, @rdoc_dir if
@generate_rdoc and (@force or not File.exist? @rdoc_dir)
end
##
# #new_rdoc creates a new RDoc instance. This method is provided only to
# make testing easier.
def new_rdoc # :nodoc:
::RDoc::RDoc.new
end
##
# Is rdoc documentation installed?
def rdoc_installed?
File.exist? @rdoc_dir
end
##
# Removes generated RDoc and ri data
def remove
base_dir = @spec.base_dir
raise Gem::FilePermissionError, base_dir unless File.writable? base_dir
FileUtils.rm_rf @rdoc_dir
FileUtils.rm_rf @ri_dir
end
##
# Is ri data installed?
def ri_installed?
File.exist? @ri_dir
end
##
# Prepares the spec for documentation generation
def setup
self.class.load_rdoc
raise Gem::FilePermissionError, @doc_dir if
File.exist?(@doc_dir) and not File.writable?(@doc_dir)
FileUtils.mkdir_p @doc_dir unless File.exist? @doc_dir
end
end
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