Current File : //opt/alt/ruby19/lib64/ruby/1.9.1/rubygems/path_support.rb
##
# Gem::PathSupport facilitates the GEM_HOME and GEM_PATH environment settings
# to the rest of RubyGems.
#
class Gem::PathSupport
##
# The default system path for managing Gems.
attr_reader :home
##
# Array of paths to search for Gems.
attr_reader :path
##
#
# Constructor. Takes a single argument which is to be treated like a
# hashtable, or defaults to ENV, the system environment.
#
def initialize(env=ENV)
@env = env
# note 'env' vs 'ENV'...
@home = env["GEM_HOME"] || ENV["GEM_HOME"] || Gem.default_dir
if File::ALT_SEPARATOR then
@home = @home.gsub(File::ALT_SEPARATOR, File::SEPARATOR)
end
self.path = env["GEM_PATH"] || ENV["GEM_PATH"]
end
private
##
# Set the Gem home directory (as reported by Gem.dir).
def home=(home)
@home = home.to_s
end
##
# Set the Gem search path (as reported by Gem.path).
def path=(gpaths)
gem_path = [@home]
# FIX: I can't tell wtf this is doing.
gpaths ||= (ENV['GEM_PATH'] || "").empty? ? nil : ENV["GEM_PATH"]
if gpaths then
if gpaths.kind_of?(Array) then
gem_path.push(*gpaths)
else
gem_path.push(*gpaths.split(File::PATH_SEPARATOR))
end
if File::ALT_SEPARATOR then
gem_path.map! do |this_path|
this_path.gsub File::ALT_SEPARATOR, File::SEPARATOR
end
end
else
gem_path.push(*Gem.default_path)
gem_path << APPLE_GEM_HOME if defined?(APPLE_GEM_HOME)
end
@path = gem_path.uniq
end
end
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