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Gem::PathSupport facilitates the GEM_HOME and GEM_PATH environment settings to the rest of RubyGems.
Constructor. Takes a single argument which is to be treated like a hashtable, or defaults to ENV, the system environment.
# File 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