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-- * lib/rubygems/custom_require.rb, gem_prelude.rb: Load code from from gems properly. * lib/rubygems.rb: Load the custom require if --disable-rubygems was used. * gem_prelude.rb: Pull in rubygem's custom require [ruby-core:30846] * lib/rubygems.rb: Handle always having custom require available git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@28786 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
44 lines
1.1 KiB
Ruby
44 lines
1.1 KiB
Ruby
#--
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# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
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# All rights reserved.
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# See LICENSE.txt for permissions.
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#++
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module Kernel
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##
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# The Kernel#require from before RubyGems was loaded.
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alias gem_original_require require
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##
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# When RubyGems is required, Kernel#require is replaced with our own which
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# is capable of loading gems on demand.
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#
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# When you call <tt>require 'x'</tt>, this is what happens:
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# * If the file can be loaded from the existing Ruby loadpath, it
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# is.
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# * Otherwise, installed gems are searched for a file that matches.
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# If it's found in gem 'y', that gem is activated (added to the
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# loadpath).
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#
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# The normal <tt>require</tt> functionality of returning false if
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# that file has already been loaded is preserved.
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def require(path) # :doc:
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gem_original_require path
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rescue LoadError => load_error
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if load_error.message.end_with?(path)
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if Gem.try_activate(path)
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return gem_original_require(path)
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end
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end
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raise load_error
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end
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private :require
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private :gem_original_require
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end unless Kernel.private_method_defined?(:gem_original_require)
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