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# -*- ruby -*-

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#--

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# See LICENSE.txt for permissions.

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#++

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require 'rbconfig'

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require 'thread'

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module Gem

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VERSION = '2.4.5.5'

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end

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# Must be first since it unloads the prelude from 1.9.2

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require 'rubygems/compatibility'

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require 'rubygems/defaults'

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require 'rubygems/deprecate'

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require 'rubygems/errors'

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# RubyGems is the Ruby standard for publishing and managing third party

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# libraries.

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# For user documentation, see:

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# * <tt>gem help</tt> and <tt>gem help [command]</tt>

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# * {RubyGems User Guide}[http://docs.rubygems.org/read/book/1]

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# * {Frequently Asked Questions}[http://docs.rubygems.org/read/book/3]

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# For gem developer documentation see:

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# * {Creating Gems}[http://docs.rubygems.org/read/chapter/5]

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# * Gem::Specification

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# * Gem::Version for version dependency notes

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# Further RubyGems documentation can be found at:

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# * {RubyGems Guides}[http://guides.rubygems.org]

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# * {RubyGems API}[http://rubygems.rubyforge.org/rdoc] (also available from

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# <tt>gem server</tt>)

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# == RubyGems Plugins

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# As of RubyGems 1.3.2, RubyGems will load plugins installed in gems or

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# $LOAD_PATH. Plugins must be named 'rubygems_plugin' (.rb, .so, etc) and

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# placed at the root of your gem's #require_path. Plugins are discovered via

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# Gem::find_files then loaded. Take care when implementing a plugin as your

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# plugin file may be loaded multiple times if multiple versions of your gem

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# are installed.

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# For an example plugin, see the graph gem which adds a `gem graph` command.

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# == RubyGems Defaults, Packaging

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# RubyGems defaults are stored in rubygems/defaults.rb. If you're packaging

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# RubyGems or implementing Ruby you can change RubyGems' defaults.

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# For RubyGems packagers, provide lib/rubygems/defaults/operating_system.rb

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# and override any defaults from lib/rubygems/defaults.rb.

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# For Ruby implementers, provide lib/rubygems/defaults/#{RUBY_ENGINE}.rb and

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# override any defaults from lib/rubygems/defaults.rb.

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# If you need RubyGems to perform extra work on install or uninstall, your

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# defaults override file can set pre and post install and uninstall hooks.

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# See Gem::pre_install, Gem::pre_uninstall, Gem::post_install,

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# Gem::post_uninstall.

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# == Bugs

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# You can submit bugs to the

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# {RubyGems bug tracker}[https://github.com/rubygems/rubygems/issues]

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# on GitHub

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# == Credits

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# RubyGems is currently maintained by Eric Hodel.

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# RubyGems was originally developed at RubyConf 2003 by:

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# * Rich Kilmer -- rich(at)infoether.com

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# * Chad Fowler -- chad(at)chadfowler.com

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# * David Black -- dblack(at)wobblini.net

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# * Paul Brannan -- paul(at)atdesk.com

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# * Jim Weirich -- jim(at)weirichhouse.org

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# Contributors:

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# * Gavin Sinclair -- gsinclair(at)soyabean.com.au

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# * George Marrows -- george.marrows(at)ntlworld.com

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# * Dick Davies -- rasputnik(at)hellooperator.net

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# * Mauricio Fernandez -- batsman.geo(at)yahoo.com

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# * Simon Strandgaard -- neoneye(at)adslhome.dk

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# * Dave Glasser -- glasser(at)mit.edu

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# * Paul Duncan -- pabs(at)pablotron.org

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# * Ville Aine -- vaine(at)cs.helsinki.fi

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# * Eric Hodel -- drbrain(at)segment7.net

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# * Daniel Berger -- djberg96(at)gmail.com

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# * Phil Hagelberg -- technomancy(at)gmail.com

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# * Ryan Davis -- ryand-ruby(at)zenspider.com

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# * Evan Phoenix -- evan(at)fallingsnow.net

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# * Steve Klabnik -- steve(at)steveklabnik.com

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# (If your name is missing, PLEASE let us know!)

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# See {LICENSE.txt}[rdoc-ref:lib/rubygems/LICENSE.txt] for permissions.

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# Thanks!

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# -The RubyGems Team

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module Gem

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RUBYGEMS_DIR = File.dirname File.expand_path(__FILE__)

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# An Array of Regexps that match windows Ruby platforms.

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WIN_PATTERNS = [

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/bccwin/i,

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/cygwin/i,

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/djgpp/i,

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/mingw/i,

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/mswin/i,

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/wince/i,

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]

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GEM_DEP_FILES = %w[

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gem.deps.rb

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Gemfile

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Isolate

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]

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# Subdirectories in a gem repository

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REPOSITORY_SUBDIRECTORIES = %w[

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build_info

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cache

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doc

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extensions

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gems

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specifications

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]

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# Subdirectories in a gem repository for default gems

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REPOSITORY_DEFAULT_GEM_SUBDIRECTORIES = %w[

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gems

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specifications/default

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]

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@@win_platform = nil

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@configuration = nil

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@loaded_specs = {}

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LOADED_SPECS_MUTEX = Mutex.new

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@path_to_default_spec_map = {}

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@platforms = []

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@ruby = nil

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@ruby_api_version = nil

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@sources = nil

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@post_build_hooks ||= []

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@post_install_hooks ||= []

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@post_uninstall_hooks ||= []

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@pre_uninstall_hooks ||= []

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@pre_install_hooks ||= []

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@pre_reset_hooks ||= []

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@post_reset_hooks ||= []

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# Try to activate a gem containing +path+. Returns true if

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# activation succeeded or wasn't needed because it was already

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# activated. Returns false if it can't find the path in a gem.

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def self.try_activate path

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# finds the _latest_ version... regardless of loaded specs and their deps

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# if another gem had a requirement that would mean we shouldn't

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# activate the latest version, then either it would already be activated

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# or if it was ambiguous (and thus unresolved) the code in our custom

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# require will try to activate the more specific version.

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spec = Gem::Specification.find_inactive_by_path path

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unless spec

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spec = Gem::Specification.find_by_path path

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return true if spec && spec.activated?

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return false

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end

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begin

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spec.activate

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rescue Gem::LoadError # this could fail due to gem dep collisions, go lax

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Gem::Specification.find_by_name(spec.name).activate

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end

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return true

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end

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def self.needs

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rs = Gem::RequestSet.new

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yield rs

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finish_resolve rs

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end

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def self.finish_resolve(request_set=Gem::RequestSet.new)

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request_set.import Gem::Specification.unresolved_deps.values

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request_set.resolve_current.each do |s|

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s.full_spec.activate

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end

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end

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# Find the full path to the executable for gem +name+. If the +exec_name+

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# is not given, the gem's default_executable is chosen, otherwise the

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# specified executable's path is returned. +requirements+ allows

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# you to specify specific gem versions.

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def self.bin_path(name, exec_name = nil, *requirements)

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# TODO: fails test_self_bin_path_bin_file_gone_in_latest

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# Gem::Specification.find_by_name(name, *requirements).bin_file exec_name

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raise ArgumentError, "you must supply exec_name" unless exec_name

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requirements = Gem::Requirement.default if

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requirements.empty?

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dep = Gem::Dependency.new name, requirements

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loaded = Gem.loaded_specs[name]

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return loaded.bin_file exec_name if loaded && dep.matches_spec?(loaded)

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specs = dep.matching_specs(true)

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raise Gem::GemNotFoundException,

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"can't find gem #{name} (#{requirements})" if specs.empty?

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specs = specs.find_all { |spec|

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spec.executables.include? exec_name

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} if exec_name

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unless spec = specs.last

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msg = "can't find gem #{name} (#{requirements}) with executable #{exec_name}"

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raise Gem::GemNotFoundException, msg

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end

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spec.bin_file exec_name

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end

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# The mode needed to read a file as straight binary.

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def self.binary_mode

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'rb'

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end

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# The path where gem executables are to be installed.

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def self.bindir(install_dir=Gem.dir)

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return File.join install_dir, 'bin' unless

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install_dir.to_s == Gem.default_dir.to_s

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Gem.default_bindir

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end

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# Reset the +dir+ and +path+ values. The next time +dir+ or +path+

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# is requested, the values will be calculated from scratch. This is

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# mainly used by the unit tests to provide test isolation.

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def self.clear_paths

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@paths = nil

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@user_home = nil

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Gem::Specification.reset

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Gem::Security.reset if defined?(Gem::Security)

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end

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# The path to standard location of the user's .gemrc file.

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def self.config_file

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@config_file ||= File.join Gem.user_home, '.gemrc'

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end

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# The standard configuration object for gems.

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def self.configuration

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@configuration ||= Gem::ConfigFile.new []

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end

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# Use the given configuration object (which implements the ConfigFile

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# protocol) as the standard configuration object.

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def self.configuration=(config)

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@configuration = config

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end

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# The path to the data directory specified by the gem name. If the

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# package is not available as a gem, return nil.

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def self.datadir(gem_name)

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# TODO: deprecate and move to Gem::Specification

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# and drop the extra ", gem_name" which is uselessly redundant

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spec = @loaded_specs[gem_name]

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return nil if spec.nil?

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File.join spec.full_gem_path, "data", gem_name

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end

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# A Zlib::Deflate.deflate wrapper

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def self.deflate(data)

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require 'zlib'

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Zlib::Deflate.deflate data

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end

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# Retrieve the PathSupport object that RubyGems uses to

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# lookup files.

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def self.paths

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@paths ||= Gem::PathSupport.new

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end

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# Initialize the filesystem paths to use from +env+.

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# +env+ is a hash-like object (typically ENV) that

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# is queried for 'GEM_HOME', 'GEM_PATH', and 'GEM_SPEC_CACHE'

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def self.paths=(env)

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clear_paths

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@paths = Gem::PathSupport.new env

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Gem::Specification.dirs = @paths.path

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end

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# The path where gems are to be installed.

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#--

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# FIXME deprecate these once everything else has been done -ebh

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def self.dir

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paths.home

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end

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def self.path

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paths.path

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end

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def self.spec_cache_dir

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paths.spec_cache_dir

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end

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# Quietly ensure the Gem directory +dir+ contains all the proper

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# subdirectories. If we can't create a directory due to a permission

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# problem, then we will silently continue.

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# If +mode+ is given, missing directories are created with this mode.

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# World-writable directories will never be created.

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def self.ensure_gem_subdirectories dir = Gem.dir, mode = nil

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ensure_subdirectories(dir, mode, REPOSITORY_SUBDIRECTORIES)

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end

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# Quietly ensure the Gem directory +dir+ contains all the proper

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# subdirectories for handling default gems. If we can't create a

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# directory due to a permission problem, then we will silently continue.

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# If +mode+ is given, missing directories are created with this mode.

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# World-writable directories will never be created.

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def self.ensure_default_gem_subdirectories dir = Gem.dir, mode = nil

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ensure_subdirectories(dir, mode, REPOSITORY_DEFAULT_GEM_SUBDIRECTORIES)

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end

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def self.ensure_subdirectories dir, mode, subdirs # :nodoc:

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old_umask = File.umask

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File.umask old_umask | 002

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require 'fileutils'

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options = {}

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options[:mode] = mode if mode

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subdirs.each do |name|

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subdir = File.join dir, name

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next if File.exist? subdir

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FileUtils.mkdir_p subdir, options rescue nil

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end

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ensure

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File.umask old_umask

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end

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# The extension API version of ruby. This includes the static vs non-static

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# distinction as extensions cannot be shared between the two.

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def self.extension_api_version # :nodoc:

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if 'no' == RbConfig::CONFIG['ENABLE_SHARED'] then

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"#{ruby_api_version}-static"

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else

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ruby_api_version

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end

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end

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# Returns a list of paths matching +glob+ that can be used by a gem to pick

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# up features from other gems. For example:

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# Gem.find_files('rdoc/discover').each do |path| load path end

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# if +check_load_path+ is true (the default), then find_files also searches

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# $LOAD_PATH for files as well as gems.

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# Note that find_files will return all files even if they are from different

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# versions of the same gem. See also find_latest_files

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def self.find_files(glob, check_load_path=true)

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files = []

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files = find_files_from_load_path glob if check_load_path

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files.concat Gem::Specification.map { |spec|

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spec.matches_for_glob("#{glob}#{Gem.suffix_pattern}")

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}.flatten

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# $LOAD_PATH might contain duplicate entries or reference

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# the spec dirs directly, so we prune.

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files.uniq! if check_load_path

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return files

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end

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def self.find_files_from_load_path glob # :nodoc:

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$LOAD_PATH.map { |load_path|

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Dir["#{File.expand_path glob, load_path}#{Gem.suffix_pattern}"]

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}.flatten.select { |file| File.file? file.untaint }

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end

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# Returns a list of paths matching +glob+ from the latest gems that can be

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# used by a gem to pick up features from other gems. For example:

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# Gem.find_latest_files('rdoc/discover').each do |path| load path end

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# if +check_load_path+ is true (the default), then find_latest_files also

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# searches $LOAD_PATH for files as well as gems.

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# Unlike find_files, find_latest_files will return only files from the

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# latest version of a gem.

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def self.find_latest_files(glob, check_load_path=true)

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files = []

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files = find_files_from_load_path glob if check_load_path

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files.concat Gem::Specification.latest_specs(true).map { |spec|

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spec.matches_for_glob("#{glob}#{Gem.suffix_pattern}")

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}.flatten

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# $LOAD_PATH might contain duplicate entries or reference

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# the spec dirs directly, so we prune.

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files.uniq! if check_load_path

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return files

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end

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# Finds the user's home directory.

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#--

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# Some comments from the ruby-talk list regarding finding the home

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# directory:

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# I have HOME, USERPROFILE and HOMEDRIVE + HOMEPATH. Ruby seems

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# to be depending on HOME in those code samples. I propose that

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# it should fallback to USERPROFILE and HOMEDRIVE + HOMEPATH (at

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# least on Win32).

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#++

[490] Fix | Delete

#--

[491] Fix | Delete

[492] Fix | Delete

# FIXME move to pathsupport

[493] Fix | Delete

[494] Fix | Delete

#++

[495] Fix | Delete

[496] Fix | Delete

def self.find_home

[497] Fix | Delete

windows = File::ALT_SEPARATOR

[498] Fix | Delete

if not windows or RUBY_VERSION >= '1.9' then

[499] Fix | Delete

12 3