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 lib/rubygems/path_support.rb, line 19 19: def initialize(env=ENV) 20: @env = env 21: 22: # note 'env' vs 'ENV'... 23: @home = env["GEM_HOME"] || ENV["GEM_HOME"] || Gem.default_dir 24: 25: if File::ALT_SEPARATOR then 26: @home = @home.gsub(File::ALT_SEPARATOR, File::SEPARATOR) 27: end 28: 29: self.path = env["GEM_PATH"] || ENV["GEM_PATH"] 30: end
Set the Gem home directory (as reported by Gem.dir).
# File lib/rubygems/path_support.rb, line 37 37: def home=(home) 38: @home = home.to_s 39: end
Set the Gem search path (as reported by Gem.path).
# File lib/rubygems/path_support.rb, line 44 44: def path=(gpaths) 45: gem_path = [@home] 46: 47: # FIX: I can't tell wtf this is doing. 48: gpaths ||= (ENV['GEM_PATH'] || "").empty? ? nil : ENV["GEM_PATH"] 49: 50: if gpaths then 51: if gpaths.kind_of?(Array) then 52: gem_path.push(*gpaths) 53: else 54: gem_path.push(*gpaths.split(File::PATH_SEPARATOR)) 55: end 56: 57: if File::ALT_SEPARATOR then 58: gem_path.map! do |this_path| 59: this_path.gsub File::ALT_SEPARATOR, File::SEPARATOR 60: end 61: end 62: else 63: gem_path.push(*Gem.default_path) 64: 65: gem_path << APPLE_GEM_HOME if defined?(APPLE_GEM_HOME) 66: end 67: 68: @path = gem_path.uniq 69: end
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