fake_rubygems.rb

# Fake RubyGems
# http://gist.github.com/223216 is an expansion of Chris'
# http://gist.github.com/157899 that allows Rails to work properly
module Rip
	module Commands
		FAKE_RUBYGEMS = <<EOM
require 'thread'
def gem(name, *args)
	raise LoadError if name =~ /adapter$/
	raise Gem::LoadError unless name =~ /^rails|rack$/
end
module Gem
	RubyGemsVersion = VERSION = '1.3.5'
	class LoadError < Exception
	end
	class Dependency
	end
	class SourceIndex
		def initialize(*args)
		end
		def refresh!
		end
	end
	def self.source_index
		SourceIndex.new
	end
	class LoadedSpecs < Array
		def values
			self
		end
	end
	def self.loaded_specs
		LoadedSpecs.new
	end
	def self.clear_paths
	end
	class Requirement
		def initialize(*args)
		end
		def self.default
		end
		def self.create(*args)
		end
	end
end
EOM

		o 'rip fake_rubygems [-d]'
		x "Installs a rubygems.rb stub into the current ripenv."
		x "Useful when dealing with libraries that require 'rubygems'"
		x
		x "The -d option deletes the stub."
		def fake_rubygems(options = {}, *args)
			file = File.join(Rip::Env.active_dir, 'lib', 'rubygems.rb')

			# un-fake rubygems
			if options[:d]
				if File.exists? file
					FileUtils.rm file
					ui.abort "un-faked rubygems"
				else
					ui.abort "you haven't faked rubygems yet"
				end
			end

			if File.exists?(file)
				ui.abort "already faked rubygems in #{Rip::Env.active} ripenv"
			else
				File.open(file, 'w') do |f|
					f.puts FAKE_RUBYGEMS
					f.flush
				end
				ui.puts "rip: rubygems successfully faked"
			end
		end
	end
end