diff options
Diffstat (limited to 'gem_prelude.rb')
-rw-r--r-- | gem_prelude.rb | 240 |
1 files changed, 1 insertions, 239 deletions
diff --git a/gem_prelude.rb b/gem_prelude.rb index ffb3e9a63d..c96514ada8 100644 --- a/gem_prelude.rb +++ b/gem_prelude.rb @@ -1,239 +1 @@ -# depends on: array.rb dir.rb env.rb file.rb hash.rb module.rb regexp.rb -# vim: filetype=ruby - -# NOTICE: Ruby is during initialization here. -# * Encoding.default_external does not reflects -E. -# * Should not expect Encoding.default_internal. -# * Locale encoding is available. - -if defined?(Gem) then - - # :stopdoc: - - module Kernel - - def gem(gem_name, *version_requirements) - Gem::QuickLoader.load_full_rubygems_library - gem gem_name, *version_requirements - end - private :gem - end - - module Gem - - ConfigMap = { - :EXEEXT => RbConfig::CONFIG["EXEEXT"], - :RUBY_SO_NAME => RbConfig::CONFIG["RUBY_SO_NAME"], - :arch => RbConfig::CONFIG["arch"], - :bindir => RbConfig::CONFIG["bindir"], - :libdir => RbConfig::CONFIG["libdir"], - :ruby_install_name => RbConfig::CONFIG["ruby_install_name"], - :ruby_version => RbConfig::CONFIG["ruby_version"], - :rubylibprefix => RbConfig::CONFIG["rubylibprefix"], - :sitedir => RbConfig::CONFIG["sitedir"], - :sitelibdir => RbConfig::CONFIG["sitelibdir"], - } - - def self.suffixes - ['', '.rb', ".#{RbConfig::CONFIG["DLEXT"]}"] - end - - def self.dir - @gem_home ||= nil - set_home(ENV['GEM_HOME'] || default_dir) unless @gem_home - @gem_home - end - - def self.path - @gem_path ||= nil - unless @gem_path - paths = [ENV['GEM_PATH'] || default_path] - paths << APPLE_GEM_HOME if defined? APPLE_GEM_HOME - set_paths(paths.compact.join(File::PATH_SEPARATOR)) - end - @gem_path - end - - def self.post_install(&hook) - @post_install_hooks << hook - end - - def self.post_uninstall(&hook) - @post_uninstall_hooks << hook - end - - def self.pre_install(&hook) - @pre_install_hooks << hook - end - - def self.pre_uninstall(&hook) - @pre_uninstall_hooks << hook - end - - def self.set_home(home) - home = home.dup.force_encoding(Encoding.find('filesystem')) - home.gsub!(File::ALT_SEPARATOR, File::SEPARATOR) if File::ALT_SEPARATOR - @gem_home = home - end - - def self.set_paths(gpaths) - if gpaths - @gem_path = gpaths.split(File::PATH_SEPARATOR) - - if File::ALT_SEPARATOR then - @gem_path.map! do |path| - path.gsub File::ALT_SEPARATOR, File::SEPARATOR - end - end - - @gem_path << Gem.dir - else - # TODO: should this be Gem.default_path instead? - @gem_path = [Gem.dir] - end - - @gem_path.uniq! - @gem_path.map!{|x|x.force_encoding(Encoding.find('filesystem'))} - end - - def self.user_home - @user_home ||= File.expand_path("~").force_encoding(Encoding.find('filesystem')) - rescue - if File::ALT_SEPARATOR then - "C:/" - else - "/" - end - end - - # begin rubygems/defaults - # NOTE: this require will be replaced with in-place eval before compilation. - require 'lib/rubygems/defaults.rb' - # end rubygems/defaults - - - ## - # Methods before this line will be removed when QuickLoader is replaced - # with the real RubyGems - - GEM_PRELUDE_METHODS = Gem.methods(false) - - begin - verbose, debug = $VERBOSE, $DEBUG - $VERBOSE = $DEBUG = nil - - begin - require 'rubygems/defaults/operating_system' - rescue ::LoadError - end - - if defined?(RUBY_ENGINE) then - begin - require "rubygems/defaults/#{RUBY_ENGINE}" - rescue ::LoadError - end - end - ensure - $VERBOSE, $DEBUG = verbose, debug - end - - module QuickLoader - - @loaded_full_rubygems_library = false - - def self.remove - return if @loaded_full_rubygems_library - - @loaded_full_rubygems_library = true - - class << Gem - undef_method(*Gem::GEM_PRELUDE_METHODS) - end - - remove_method :const_missing - remove_method :method_missing - - Kernel.module_eval do - undef_method :gem if method_defined? :gem - end - end - - def self.load_full_rubygems_library - return false if @loaded_full_rubygems_library - - remove - - $".delete path_to_full_rubygems_library - if $".any? {|path| path.end_with?('/rubygems.rb')} - raise LoadError, "another rubygems is already loaded from #{path}" - end - - require 'rubygems' - - return true - end - - def self.path_to_full_rubygems_library - installed_path = File.join(Gem::ConfigMap[:rubylibprefix], Gem::ConfigMap[:ruby_version]) - if $:.include?(installed_path) - return File.join(installed_path, 'rubygems.rb') - else # e.g., on test-all - $:.each do |dir| - if File.exist?( path = File.join(dir, 'rubygems.rb') ) - return path - end - end - raise LoadError, 'rubygems.rb' - end - end - - def const_missing(constant) - QuickLoader.load_full_rubygems_library - - if Gem.const_defined?(constant) then - Gem.const_get constant - else - super - end - end - - def method_missing(method, *args, &block) - QuickLoader.load_full_rubygems_library - super unless Gem.respond_to?(method) - Gem.send(method, *args, &block) - end - end - - extend QuickLoader - - def self.try_activate(path) - # This method is only hit when the custom require is hit the first time. - # So we go off and dutifully load all of rubygems and retry the call - # to Gem.try_activate. We retry because full rubygems replaces this - # method with one that actually tries to find a gem for +path+ and load it. - # - # This is conditional because in the course of loading rubygems, the custom - # require will call back into here before all of rubygems is loaded. So - # we must not always retry the call. We only redo the call when - # load_full_rubygems_library returns true, which it only does the first - # time it's called. - # - if QuickLoader.load_full_rubygems_library - return Gem.try_activate(path) - end - - return false - end - - end - - begin - require 'lib/rubygems/custom_require.rb' - rescue Exception => e - puts "Error loading gem paths on load path in gem_prelude" - puts e - puts e.backtrace.join("\n") - end - -end - +require 'rubygems' unless $disable_rubygems |