Gem::PathSupport facilitates the GEM_HOME and GEM_PATH environment settings to the rest of RubyGems.
The default system path for managing Gems.
Array of paths to search for Gems.
Constructor. Takes a single argument which is to be treated like a hashtable, or defaults to ENV, the system environment.
# File lib/rubygems/path_support.rb, line 20 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
# File lib/rubygems/path_support.rb, line 45 def path=(gpaths) # FIX: it should be [home, *path], not [*path, home] gem_path =  # FIX: I can't tell wtf this is doing. gpaths ||= (ENV['GEM_PATH'] || "").empty? ? nil : ENV["GEM_PATH"] if gpaths if gpaths.kind_of?(Array) gem_path = gpaths.dup else gem_path = gpaths.split(Gem.path_separator) end if File::ALT_SEPARATOR then gem_path.map! do |this_path| this_path.gsub File::ALT_SEPARATOR, File::SEPARATOR end end gem_path << @home else gem_path = Gem.default_path + [@home] if defined?(APPLE_GEM_HOME) gem_path << APPLE_GEM_HOME end end @path = gem_path.uniq end