class Gem::PathSupport
Gem::PathSupport facilitates the GEM_HOME and GEM_PATH environment settings to the rest of RubyGems.
Attributes
home[R]
The default system path for managing Gems.
path[R]
Array of paths to search for Gems.
Public Class Methods
new(env=ENV)
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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 24 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"] @spec_cache_dir = env["GEM_SPEC_CACHE"] || ENV["GEM_SPEC_CACHE"] || Gem.default_spec_cache_dir @spec_cache_dir = @spec_cache_dir.dup.untaint end
Private Instance Methods
home=(home)
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path=(gpaths)
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Set the Gem search path (as reported by Gem.path).
# File lib/rubygems/path_support.rb, line 55 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