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79 lines
1.8 KiB
Ruby
79 lines
1.8 KiB
Ruby
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######################################################################
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# This file is imported from the rubygems project.
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# DO NOT make modifications in this repo. They _will_ be reverted!
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# File a patch instead and assign it to Ryan Davis or Eric Hodel.
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######################################################################
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##
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#
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# Gem::PathSupport facilitates the GEM_HOME and GEM_PATH environment settings
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# to the rest of RubyGems.
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#
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class Gem::PathSupport
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##
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# The default system path for managing Gems.
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attr_reader :home
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##
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# Array of paths to search for Gems.
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attr_reader :path
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##
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#
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# Constructor. Takes a single argument which is to be treated like a
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# hashtable, or defaults to ENV, the system environment.
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#
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def initialize(env=ENV)
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@env = env
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# note 'env' vs 'ENV'...
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@home = env["GEM_HOME"] || ENV["GEM_HOME"] || Gem.default_dir
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self.path = env["GEM_PATH"] || ENV["GEM_PATH"]
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end
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private
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##
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# Set the Gem home directory (as reported by Gem.dir).
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def home=(home)
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@home = home.to_s
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end
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##
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# Set the Gem search path (as reported by Gem.path).
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def path=(gpaths)
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# FIX: it should be [home, *path], not [*path, home]
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gem_path = []
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# FIX: I can't tell wtf this is doing.
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gpaths ||= (ENV['GEM_PATH'] || "").empty? ? nil : ENV["GEM_PATH"]
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if gpaths
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if gpaths.kind_of?(Array)
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gem_path = gpaths.dup
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else
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gem_path = gpaths.split(File::PATH_SEPARATOR)
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end
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if File::ALT_SEPARATOR then
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gem_path.map! do |this_path|
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this_path.gsub File::ALT_SEPARATOR, File::SEPARATOR
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end
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end
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gem_path << @home
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else
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gem_path = Gem.default_path + [@home]
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if defined?(Gem::APPLE_GEM_HOME)
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gem_path << Gem::APPLE_GEM_HOME
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end
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end
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@path = gem_path.uniq
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end
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end
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