ruby/lib/rake/rdoctask.rb

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Ruby
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require 'rake'
require 'rake/tasklib'
module Rake
# Create a documentation task that will generate the RDoc files for
# a project.
#
# The RDocTask will create the following targets:
#
# [<b>:<em>rdoc</em></b>]
# Main task for this RDOC task.
#
# [<b>:clobber_<em>rdoc</em></b>]
# Delete all the rdoc files. This target is automatically
# added to the main clobber target.
#
# [<b>:re<em>rdoc</em></b>]
# Rebuild the rdoc files from scratch, even if they are not out
# of date.
#
# Simple Example:
#
# Rake::RDocTask.new do |rd|
# rd.main = "README.rdoc"
# rd.rdoc_files.include("README.rdoc", "lib/**/*.rb")
# end
#
# The +rd+ object passed to the block is an RDocTask object. See the
# attributes list for the RDocTask class for available customization options.
#
# == Specifying different task names
#
# You may wish to give the task a different name, such as if you are
# generating two sets of documentation. For instance, if you want to have a
# development set of documentation including private methods:
#
# Rake::RDocTask.new(:rdoc_dev) do |rd|
# rd.main = "README.doc"
# rd.rdoc_files.include("README.rdoc", "lib/**/*.rb")
# rd.options << "--all"
# end
#
# The tasks would then be named :<em>rdoc_dev</em>, :clobber_<em>rdoc_dev</em>, and
# :re<em>rdoc_dev</em>.
#
# If you wish to have completely different task names, then pass a Hash as
# first argument. With the <tt>:rdoc</tt>, <tt>:clobber_rdoc</tt> and
# <tt>:rerdoc</tt> options, you can customize the task names to your liking.
# For example:
#
# Rake::RDocTask.new(:rdoc => "rdoc", :clobber_rdoc => "rdoc:clean", :rerdoc => "rdoc:force")
#
# This will create the tasks <tt>:rdoc</tt>, <tt>:rdoc_clean</tt> and
# <tt>:rdoc:force</tt>.
#
class RDocTask < TaskLib
# Name of the main, top level task. (default is :rdoc)
attr_accessor :name
# Name of directory to receive the html output files. (default is "html")
attr_accessor :rdoc_dir
# Title of RDoc documentation. (defaults to rdoc's default)
attr_accessor :title
# Name of file to be used as the main, top level file of the
# RDoc. (default is none)
attr_accessor :main
# Name of template to be used by rdoc. (defaults to rdoc's default)
attr_accessor :template
# List of files to be included in the rdoc generation. (default is [])
attr_accessor :rdoc_files
# Additional list of options to be passed rdoc. (default is [])
attr_accessor :options
# Whether to run the rdoc process as an external shell (default is false)
attr_accessor :external
attr_accessor :inline_source
# Create an RDoc task with the given name. See the RDocTask class overview
# for documentation.
def initialize(name = :rdoc) # :yield: self
if name.is_a?(Hash)
invalid_options = name.keys.map { |k| k.to_sym } - [:rdoc, :clobber_rdoc, :rerdoc]
if !invalid_options.empty?
raise ArgumentError, "Invalid option(s) passed to RDocTask.new: #{invalid_options.join(", ")}"
end
end
@name = name
@rdoc_files = Rake::FileList.new
@rdoc_dir = 'html'
@main = nil
@title = nil
@template = nil
@external = false
@inline_source = true
@options = []
yield self if block_given?
define
end
# Create the tasks defined by this task lib.
def define
if rdoc_task_name != "rdoc"
desc "Build the RDOC HTML Files"
else
desc "Build the #{rdoc_task_name} HTML Files"
end
task rdoc_task_name
desc "Force a rebuild of the RDOC files"
task rerdoc_task_name => [clobber_task_name, rdoc_task_name]
desc "Remove rdoc products"
task clobber_task_name do
rm_r rdoc_dir rescue nil
end
task :clobber => [clobber_task_name]
directory @rdoc_dir
task rdoc_task_name => [rdoc_target]
file rdoc_target => @rdoc_files + [Rake.application.rakefile] do
rm_r @rdoc_dir rescue nil
@before_running_rdoc.call if @before_running_rdoc
args = option_list + @rdoc_files
if @external
argstring = args.join(' ')
sh %{ruby -Ivendor vendor/rd #{argstring}}
else
require 'rdoc/rdoc'
RDoc::RDoc.new.document(args)
end
end
self
end
def option_list
result = @options.dup
result << "-o" << @rdoc_dir
result << "--main" << quote(main) if main
result << "--title" << quote(title) if title
result << "-T" << quote(template) if template
result << "--inline-source" if inline_source && !@options.include?("--inline-source") && !@options.include?("-S")
result
end
def quote(str)
if @external
"'#{str}'"
else
str
end
end
def option_string
option_list.join(' ')
end
# The block passed to this method will be called just before running the
# RDoc generator. It is allowed to modify RDocTask attributes inside the
# block.
def before_running_rdoc(&block)
@before_running_rdoc = block
end
private
def rdoc_target
"#{rdoc_dir}/index.html"
end
def rdoc_task_name
case name
when Hash
(name[:rdoc] || "rdoc").to_s
else
name.to_s
end
end
def clobber_task_name
case name
when Hash
(name[:clobber_rdoc] || "clobber_rdoc").to_s
else
"clobber_#{name}"
end
end
def rerdoc_task_name
case name
when Hash
(name[:rerdoc] || "rerdoc").to_s
else
"re#{name}"
end
end
end
end