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rails--rails/guides/rails_guides.rb
Prathamesh Sonpatki 2c02fc3fd7 Add error message for including nokogiri in Gemfile for rake doc:guides [ci skip]
- When `rake doc:guides` is run from applications, it complains for
  presence of redcarpet if it not present in Gemfile
- Similarly it should complain about nokogiri
2013-08-22 09:11:34 +05:30

63 lines
1.3 KiB
Ruby

pwd = File.dirname(__FILE__)
$:.unshift pwd
# This is a predicate useful for the doc:guides task of applications.
def bundler?
# Note that rake sets the cwd to the one that contains the Rakefile
# being executed.
File.exists?('Gemfile')
end
begin
# Guides generation in the Rails repo.
as_lib = File.join(pwd, "../activesupport/lib")
ap_lib = File.join(pwd, "../actionpack/lib")
$:.unshift as_lib if File.directory?(as_lib)
$:.unshift ap_lib if File.directory?(ap_lib)
rescue LoadError
# Guides generation from gems.
gem "actionpack", '>= 3.0'
end
begin
require 'redcarpet'
rescue LoadError
# This can happen if doc:guides is executed in an application.
$stderr.puts('Generating guides requires Redcarpet 2.1.1+.')
$stderr.puts(<<ERROR) if bundler?
Please add
gem 'redcarpet', '~> 2.1.1'
to the Gemfile, run
bundle install
and try again.
ERROR
exit 1
end
begin
require 'nokogiri'
rescue LoadError
# This can happen if doc:guides is executed in an application.
$stderr.puts('Generating guides requires Nokogiri.')
$stderr.puts(<<ERROR) if bundler?
Please add
gem 'nokogiri'
to the Gemfile, run
bundle install
and try again.
ERROR
exit 1
end
require 'rails_guides/markdown'
require "rails_guides/generator"
RailsGuides::Generator.new.generate