# -*- ruby -*-
#--
# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
# All rights reserved.
# See LICENSE.txt for permissions.
#++
require 'rbconfig'
require 'thread'
module Gem
VERSION = '2.4.5.1'
end
# Must be first since it unloads the prelude from 1.9.2
require 'rubygems/compatibility'
require 'rubygems/defaults'
require 'rubygems/deprecate'
require 'rubygems/errors'
##
# RubyGems is the Ruby standard for publishing and managing third party
# libraries.
#
# For user documentation, see:
#
# * <tt>gem help</tt> and <tt>gem help [command]</tt>
# * {RubyGems User Guide}[http://docs.rubygems.org/read/book/1]
# * {Frequently Asked Questions}[http://docs.rubygems.org/read/book/3]
#
# For gem developer documentation see:
#
# * {Creating Gems}[http://docs.rubygems.org/read/chapter/5]
# * Gem::Specification
# * Gem::Version for version dependency notes
#
# Further RubyGems documentation can be found at:
#
# * {RubyGems Guides}[http://guides.rubygems.org]
# * {RubyGems API}[http://rubygems.rubyforge.org/rdoc] (also available from
# <tt>gem server</tt>)
#
# == RubyGems Plugins
#
# As of RubyGems 1.3.2, RubyGems will load plugins installed in gems or
# $LOAD_PATH. Plugins must be named 'rubygems_plugin' (.rb, .so, etc) and
# placed at the root of your gem's #require_path. Plugins are discovered via
# Gem::find_files then loaded. Take care when implementing a plugin as your
# plugin file may be loaded multiple times if multiple versions of your gem
# are installed.
#
# For an example plugin, see the graph gem which adds a `gem graph` command.
#
# == RubyGems Defaults, Packaging
#
# RubyGems defaults are stored in rubygems/defaults.rb. If you're packaging
# RubyGems or implementing Ruby you can change RubyGems' defaults.
#
# For RubyGems packagers, provide lib/rubygems/defaults/operating_system.rb
# and override any defaults from lib/rubygems/defaults.rb.
#
# For Ruby implementers, provide lib/rubygems/defaults/#{RUBY_ENGINE}.rb and
# override any defaults from lib/rubygems/defaults.rb.
#
# If you need RubyGems to perform extra work on install or uninstall, your
# defaults override file can set pre and post install and uninstall hooks.
# See Gem::pre_install, Gem::pre_uninstall, Gem::post_install,
# Gem::post_uninstall.
#
# == Bugs
#
# You can submit bugs to the
# {RubyGems bug tracker}[https://github.com/rubygems/rubygems/issues]
# on GitHub
#
# == Credits
#
# RubyGems is currently maintained by Eric Hodel.
#
# RubyGems was originally developed at RubyConf 2003 by:
#
# * Rich Kilmer -- rich(at)infoether.com
# * Chad Fowler -- chad(at)chadfowler.com
# * David Black -- dblack(at)wobblini.net
# * Paul Brannan -- paul(at)atdesk.com
# * Jim Weirich -- jim(at)weirichhouse.org
#
# Contributors:
#
# * Gavin Sinclair -- gsinclair(at)soyabean.com.au
# * George Marrows -- george.marrows(at)ntlworld.com
# * Dick Davies -- rasputnik(at)hellooperator.net
# * Mauricio Fernandez -- batsman.geo(at)yahoo.com
# * Simon Strandgaard -- neoneye(at)adslhome.dk
# * Dave Glasser -- glasser(at)mit.edu
# * Paul Duncan -- pabs(at)pablotron.org
# * Ville Aine -- vaine(at)cs.helsinki.fi
# * Eric Hodel -- drbrain(at)segment7.net
# * Daniel Berger -- djberg96(at)gmail.com
# * Phil Hagelberg -- technomancy(at)gmail.com
# * Ryan Davis -- ryand-ruby(at)zenspider.com
# * Evan Phoenix -- evan(at)fallingsnow.net
# * Steve Klabnik -- steve(at)steveklabnik.com
#
# (If your name is missing, PLEASE let us know!)
#
# See {LICENSE.txt}[rdoc-ref:lib/rubygems/LICENSE.txt] for permissions.
#
# Thanks!
#
# -The RubyGems Team
module Gem
RUBYGEMS_DIR = File.dirname File.expand_path(__FILE__)
##
# An Array of Regexps that match windows Ruby platforms.
WIN_PATTERNS = [
/bccwin/i,
/cygwin/i,
/djgpp/i,
/mingw/i,
/mswin/i,
/wince/i,
]
GEM_DEP_FILES = %w[
gem.deps.rb
Gemfile
Isolate
]
##
# Subdirectories in a gem repository
REPOSITORY_SUBDIRECTORIES = %w[
build_info
cache
doc
extensions
gems
specifications
]
##
# Subdirectories in a gem repository for default gems
REPOSITORY_DEFAULT_GEM_SUBDIRECTORIES = %w[
gems
specifications/default
]
@@win_platform = nil
@configuration = nil
@loaded_specs = {}
LOADED_SPECS_MUTEX = Mutex.new
@path_to_default_spec_map = {}
@platforms = []
@ruby = nil
@ruby_api_version = nil
@sources = nil
@post_build_hooks ||= []
@post_install_hooks ||= []
@post_uninstall_hooks ||= []
@pre_uninstall_hooks ||= []
@pre_install_hooks ||= []
@pre_reset_hooks ||= []
@post_reset_hooks ||= []
##
# Try to activate a gem containing +path+. Returns true if
# activation succeeded or wasn't needed because it was already
# activated. Returns false if it can't find the path in a gem.
def self.try_activate path
# finds the _latest_ version... regardless of loaded specs and their deps
# if another gem had a requirement that would mean we shouldn't
# activate the latest version, then either it would already be activated
# or if it was ambiguous (and thus unresolved) the code in our custom
# require will try to activate the more specific version.
|