diff options
Diffstat (limited to 'ruby_2_2/lib/rubygems/core_ext/kernel_require.rb')
| -rwxr-xr-x | ruby_2_2/lib/rubygems/core_ext/kernel_require.rb | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/ruby_2_2/lib/rubygems/core_ext/kernel_require.rb b/ruby_2_2/lib/rubygems/core_ext/kernel_require.rb deleted file mode 100755 index 8f2cddee4d..0000000000 --- a/ruby_2_2/lib/rubygems/core_ext/kernel_require.rb +++ /dev/null @@ -1,139 +0,0 @@ -#-- -# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others. -# All rights reserved. -# See LICENSE.txt for permissions. -#++ - -require 'monitor' - -module Kernel - - RUBYGEMS_ACTIVATION_MONITOR = Monitor.new # :nodoc: - - if defined?(gem_original_require) then - # Ruby ships with a custom_require, override its require - remove_method :require - else - ## - # The Kernel#require from before RubyGems was loaded. - - alias gem_original_require require - private :gem_original_require - end - - ## - # When RubyGems is required, Kernel#require is replaced with our own which - # is capable of loading gems on demand. - # - # When you call <tt>require 'x'</tt>, this is what happens: - # * If the file can be loaded from the existing Ruby loadpath, it - # is. - # * Otherwise, installed gems are searched for a file that matches. - # If it's found in gem 'y', that gem is activated (added to the - # loadpath). - # - # The normal <tt>require</tt> functionality of returning false if - # that file has already been loaded is preserved. - - def require path - RUBYGEMS_ACTIVATION_MONITOR.enter - - path = path.to_path if path.respond_to? :to_path - - spec = Gem.find_unresolved_default_spec(path) - if spec - Gem.remove_unresolved_default_spec(spec) - gem(spec.name) - end - - # If there are no unresolved deps, then we can use just try - # normal require handle loading a gem from the rescue below. - - if Gem::Specification.unresolved_deps.empty? then - RUBYGEMS_ACTIVATION_MONITOR.exit - return gem_original_require(path) - end - - # If +path+ is for a gem that has already been loaded, don't - # bother trying to find it in an unresolved gem, just go straight - # to normal require. - #-- - # TODO request access to the C implementation of this to speed up RubyGems - - spec = Gem::Specification.stubs.find { |s| - s.activated? and s.contains_requirable_file? path - } - - begin - RUBYGEMS_ACTIVATION_MONITOR.exit - return gem_original_require(spec.to_fullpath(path) || path) - end if spec - - # Attempt to find +path+ in any unresolved gems... - - found_specs = Gem::Specification.find_in_unresolved path - - # If there are no directly unresolved gems, then try and find +path+ - # in any gems that are available via the currently unresolved gems. - # For example, given: - # - # a => b => c => d - # - # If a and b are currently active with c being unresolved and d.rb is - # requested, then find_in_unresolved_tree will find d.rb in d because - # it's a dependency of c. - # - if found_specs.empty? then - found_specs = Gem::Specification.find_in_unresolved_tree path - - found_specs.each do |found_spec| - found_spec.activate - end - - # We found +path+ directly in an unresolved gem. Now we figure out, of - # the possible found specs, which one we should activate. - else - - # Check that all the found specs are just different - # versions of the same gem - names = found_specs.map(&:name).uniq - - if names.size > 1 then - RUBYGEMS_ACTIVATION_MONITOR.exit - raise Gem::LoadError, "#{path} found in multiple gems: #{names.join ', '}" - end - - # Ok, now find a gem that has no conflicts, starting - # at the highest version. - valid = found_specs.select { |s| s.conflicts.empty? }.last - - unless valid then - le = Gem::LoadError.new "unable to find a version of '#{names.first}' to activate" - le.name = names.first - RUBYGEMS_ACTIVATION_MONITOR.exit - raise le - end - - valid.activate - end - - RUBYGEMS_ACTIVATION_MONITOR.exit - return gem_original_require(path) - rescue LoadError => load_error - RUBYGEMS_ACTIVATION_MONITOR.enter - - if load_error.message.start_with?("Could not find") or - (load_error.message.end_with?(path) and Gem.try_activate(path)) then - RUBYGEMS_ACTIVATION_MONITOR.exit - return gem_original_require(path) - else - RUBYGEMS_ACTIVATION_MONITOR.exit - end - - raise load_error - end - - private :require - -end - |