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# frozen_string_literal: true
#--
# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
# All rights reserved.
# See LICENSE.txt for permissions.
#++
require 'rbconfig'
module Gem
2020-10-15 00:25:27 -04:00
VERSION = "3.2.0.rc.2".freeze
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}[https://guides.rubygems.org/]
# * {Frequently Asked Questions}[https://guides.rubygems.org/faqs]
#
# For gem developer documentation see:
#
# * {Creating Gems}[https://guides.rubygems.org/make-your-own-gem]
# * Gem::Specification
# * Gem::Version for version dependency notes
#
# Further RubyGems documentation can be found at:
#
# * {RubyGems Guides}[https://guides.rubygems.org]
# * {RubyGems API}[https://www.rubydoc.info/github/rubygems/rubygems] (also available from
# <tt>gem server</tt>)
#
# == RubyGems Plugins
#
# RubyGems will load plugins in the latest version of each installed gem 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 installed at a
# special location and loaded on boot.
#
# For an example plugin, see the {Graph gem}[https://github.com/seattlerb/graph]
# which adds a `gem graph` command.
#
# == RubyGems Defaults, Packaging
#
# RubyGems defaults are stored in lib/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/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!)
#
# == License
#
# 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__)
# Taint support is deprecated in Ruby 2.7.
# This allows switching ".untaint" to ".tap(&Gem::UNTAINT)",
# to avoid deprecation warnings in Ruby 2.7.
UNTAINT = RUBY_VERSION < '2.7' ? :untaint.to_sym : proc{}
##
# An Array of Regexps that match windows Ruby platforms.
WIN_PATTERNS = [
/bccwin/i,
/cygwin/i,
/djgpp/i,
/mingw/i,
/mswin/i,
/wince/i,
].freeze
GEM_DEP_FILES = %w[
gem.deps.rb
gems.rb
Gemfile
Isolate
].freeze
##
# Subdirectories in a gem repository
REPOSITORY_SUBDIRECTORIES = %w[
build_info
cache
doc
extensions
gems
plugins
specifications
].freeze
##
# Subdirectories in a gem repository for default gems
REPOSITORY_DEFAULT_GEM_SUBDIRECTORIES = %w[
gems
specifications/default
].freeze
##
# Exception classes used in a Gem.read_binary +rescue+ statement
READ_BINARY_ERRORS = [Errno::EACCES, Errno::EROFS, Errno::ENOSYS, Errno::ENOTSUP].freeze
##
# Exception classes used in Gem.write_binary +rescue+ statement
WRITE_BINARY_ERRORS = [Errno::ENOSYS, Errno::ENOTSUP].freeze
@@win_platform = nil
@configuration = nil
@gemdeps = 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 ||= []
@default_source_date_epoch = nil
##
# 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.
spec = Gem::Specification.find_by_path path
return false unless spec
return true if spec.activated?
begin
spec.activate
rescue Gem::LoadError => e # this could fail due to gem dep collisions, go lax
spec_by_name = Gem::Specification.find_by_name(spec.name)
if spec_by_name.nil?
raise e
else
spec_by_name.activate
end
end
return true
end
def self.needs
rs = Gem::RequestSet.new
yield rs
finish_resolve rs
end
def self.finish_resolve(request_set=Gem::RequestSet.new)
request_set.import Gem::Specification.unresolved_deps.values
request_set.import Gem.loaded_specs.values.map {|s| Gem::Dependency.new(s.name, s.version) }
request_set.resolve_current.each do |s|
s.full_spec.activate
end
end
##
# Find the full path to the executable for gem +name+. If the +exec_name+
# is not given, an exception will be raised, otherwise the
# specified executable's path is returned. +requirements+ allows
# you to specify specific gem versions.
def self.bin_path(name, exec_name = nil, *requirements)
# TODO: fails test_self_bin_path_bin_file_gone_in_latest
# Gem::Specification.find_by_name(name, *requirements).bin_file exec_name
requirements = Gem::Requirement.default if
requirements.empty?
find_spec_for_exe(name, exec_name, requirements).bin_file exec_name
end
def self.find_spec_for_exe(name, exec_name, requirements)
raise ArgumentError, "you must supply exec_name" unless exec_name
dep = Gem::Dependency.new name, requirements
loaded = Gem.loaded_specs[name]
return loaded if loaded && dep.matches_spec?(loaded)
specs = dep.matching_specs(true)
specs = specs.find_all do |spec|
spec.executables.include? exec_name
end if exec_name
unless spec = specs.first
msg = "can't find gem #{dep} with executable #{exec_name}"
if name == "bundler" && bundler_message = Gem::BundlerVersionFinder.missing_version_message
msg = bundler_message
end
raise Gem::GemNotFoundException, msg
end
spec
end
private_class_method :find_spec_for_exe
##
# Find the full path to the executable for gem +name+. If the +exec_name+
# is not given, an exception will be raised, otherwise the
# specified executable's path is returned. +requirements+ allows
# you to specify specific gem versions.
#
# A side effect of this method is that it will activate the gem that
# contains the executable.
#
# This method should *only* be used in bin stub files.
def self.activate_bin_path(name, exec_name = nil, *requirements) # :nodoc:
spec = find_spec_for_exe name, exec_name, requirements
Gem::LOADED_SPECS_MUTEX.synchronize do
spec.activate
finish_resolve
end
spec.bin_file exec_name
end
##
# The mode needed to read a file as straight binary.
def self.binary_mode
'rb'
end
##
# The path where gem executables are to be installed.
def self.bindir(install_dir=Gem.dir)
return File.join install_dir, 'bin' unless
install_dir.to_s == Gem.default_dir.to_s
Gem.default_bindir
end
##
# The path were rubygems plugins are to be installed.
def self.plugindir(install_dir=Gem.dir)
File.join install_dir, 'plugins'
end
##
# Reset the +dir+ and +path+ values. The next time +dir+ or +path+
# is requested, the values will be calculated from scratch. This is
# mainly used by the unit tests to provide test isolation.
def self.clear_paths
@paths = nil
@user_home = nil
Gem::Specification.reset
Gem::Security.reset if defined?(Gem::Security)
end
##
# The standard configuration object for gems.
def self.configuration
@configuration ||= Gem::ConfigFile.new []
end
##
# Use the given configuration object (which implements the ConfigFile
# protocol) as the standard configuration object.
def self.configuration=(config)
@configuration = config
end
##
# The path to the data directory specified by the gem name. If the
# package is not available as a gem, return nil.
def self.datadir(gem_name)
spec = @loaded_specs[gem_name]
return nil if spec.nil?
spec.datadir
end
##
# A Zlib::Deflate.deflate wrapper
def self.deflate(data)
require 'zlib'
Zlib::Deflate.deflate data
end
# Retrieve the PathSupport object that RubyGems uses to
# lookup files.
def self.paths
@paths ||= Gem::PathSupport.new(ENV)
end
# Initialize the filesystem paths to use from +env+.
# +env+ is a hash-like object (typically ENV) that
# is queried for 'GEM_HOME', 'GEM_PATH', and 'GEM_SPEC_CACHE'
# Keys for the +env+ hash should be Strings, and values of the hash should
# be Strings or +nil+.
def self.paths=(env)
clear_paths
target = {}
env.each_pair do |k,v|
case k
when 'GEM_HOME', 'GEM_PATH', 'GEM_SPEC_CACHE'
case v
when nil, String
target[k] = v
when Array
unless Gem::Deprecate.skip
warn <<-EOWARN
Array values in the parameter to `Gem.paths=` are deprecated.
Please use a String or nil.
An Array (#{env.inspect}) was passed in from #{caller[3]}
EOWARN
end
target[k] = v.join File::PATH_SEPARATOR
end
else
target[k] = v
end
end
@paths = Gem::PathSupport.new ENV.to_hash.merge(target)
Gem::Specification.dirs = @paths.path
end
##
# The path where gems are to be installed.
def self.dir
paths.home
end
def self.path
paths.path
end
def self.spec_cache_dir
paths.spec_cache_dir
end
##
# Quietly ensure the Gem directory +dir+ contains all the proper
# subdirectories. If we can't create a directory due to a permission
# problem, then we will silently continue.
#
# If +mode+ is given, missing directories are created with this mode.
#
# World-writable directories will never be created.
def self.ensure_gem_subdirectories(dir = Gem.dir, mode = nil)
ensure_subdirectories(dir, mode, REPOSITORY_SUBDIRECTORIES)
end
##
# Quietly ensure the Gem directory +dir+ contains all the proper
# subdirectories for handling default gems. If we can't create a
# directory due to a permission problem, then we will silently continue.
#
# If +mode+ is given, missing directories are created with this mode.
#
# World-writable directories will never be created.
def self.ensure_default_gem_subdirectories(dir = Gem.dir, mode = nil)
ensure_subdirectories(dir, mode, REPOSITORY_DEFAULT_GEM_SUBDIRECTORIES)
end
def self.ensure_subdirectories(dir, mode, subdirs) # :nodoc:
old_umask = File.umask
File.umask old_umask | 002
require 'fileutils'
options = {}
options[:mode] = mode if mode
subdirs.each do |name|
subdir = File.join dir, name
next if File.exist? subdir
begin
FileUtils.mkdir_p subdir, **options
rescue Errno::EACCES
end
end
ensure
File.umask old_umask
end
##
# The extension API version of ruby. This includes the static vs non-static
# distinction as extensions cannot be shared between the two.
def self.extension_api_version # :nodoc:
if 'no' == RbConfig::CONFIG['ENABLE_SHARED']
"#{ruby_api_version}-static"
else
ruby_api_version
end
end
##
# Returns a list of paths matching +glob+ that can be used by a gem to pick
# up features from other gems. For example:
#
# Gem.find_files('rdoc/discover').each do |path| load path end
#
# if +check_load_path+ is true (the default), then find_files also searches
# $LOAD_PATH for files as well as gems.
#
# Note that find_files will return all files even if they are from different
# versions of the same gem. See also find_latest_files
def self.find_files(glob, check_load_path=true)
files = []
files = find_files_from_load_path glob if check_load_path
gem_specifications = @gemdeps ? Gem.loaded_specs.values : Gem::Specification.stubs
files.concat gem_specifications.map {|spec|
spec.matches_for_glob("#{glob}#{Gem.suffix_pattern}")
}.flatten
# $LOAD_PATH might contain duplicate entries or reference
# the spec dirs directly, so we prune.
files.uniq! if check_load_path
return files
end
def self.find_files_from_load_path(glob) # :nodoc:
glob_with_suffixes = "#{glob}#{Gem.suffix_pattern}"
$LOAD_PATH.map do |load_path|
Gem::Util.glob_files_in_dir(glob_with_suffixes, load_path)
end.flatten.select {|file| File.file? file.tap(&Gem::UNTAINT) }
end
##
# Returns a list of paths matching +glob+ from the latest gems that can be
# used by a gem to pick up features from other gems. For example:
#
# Gem.find_latest_files('rdoc/discover').each do |path| load path end
#
# if +check_load_path+ is true (the default), then find_latest_files also
# searches $LOAD_PATH for files as well as gems.
#
# Unlike find_files, find_latest_files will return only files from the
# latest version of a gem.
def self.find_latest_files(glob, check_load_path=true)
files = []
files = find_files_from_load_path glob if check_load_path
files.concat Gem::Specification.latest_specs(true).map {|spec|
spec.matches_for_glob("#{glob}#{Gem.suffix_pattern}")
}.flatten
# $LOAD_PATH might contain duplicate entries or reference
# the spec dirs directly, so we prune.
files.uniq! if check_load_path
return files
end
##
# Top level install helper method. Allows you to install gems interactively:
#
# % irb
# >> Gem.install "minitest"
# Fetching: minitest-5.14.0.gem (100%)
# => [#<Gem::Specification:0x1013b4528 @name="minitest", ...>]
def self.install(name, version = Gem::Requirement.default, *options)
require "rubygems/dependency_installer"
inst = Gem::DependencyInstaller.new(*options)
inst.install name, version
inst.installed_gems
end
##
# Get the default RubyGems API host. This is normally
# <tt>https://rubygems.org</tt>.
def self.host
@host ||= Gem::DEFAULT_HOST
end
## Set the default RubyGems API host.
def self.host=(host)
@host = host
end
##
# The index to insert activated gem paths into the $LOAD_PATH. The activated
# gem's paths are inserted before site lib directory by default.
def self.load_path_insert_index
$LOAD_PATH.each_with_index do |path, i|
return i if path.instance_variable_defined?(:@gem_prelude_index)
end
* ChangeLog: * lib/rubygems/basic_specification.rb (class Gem): * lib/rubygems/commands/contents_command.rb (prefix or only the files that are requir): * lib/rubygems/commands/install_command.rb (to write the specification by hand): * lib/rubygems/commands/setup_command.rb (class Gem): * lib/rubygems/commands/setup_command.rb (TEXT): * lib/rubygems/compatibility.rb (module Gem): * lib/rubygems/defaults.rb (module Gem): * lib/rubygems/deprecate.rb (module Gem): * lib/rubygems/installer.rb (class Gem): * lib/rubygems/platform.rb (class Gem): * lib/rubygems/rdoc.rb (class Gem): * lib/rubygems/request_set/lockfile.rb (class Gem): * lib/rubygems/resolver/installer_set.rb (class Gem): * lib/rubygems/resolver.rb (class Gem): * lib/rubygems/specification.rb (class Gem): * lib/rubygems/test_case.rb (class Gem): * lib/rubygems/test_case.rb (Also): * lib/rubygems/uninstaller.rb (class Gem): * lib/rubygems.rb (module Gem): * test/rubygems/test_gem.rb (class TestGem): * test/rubygems/test_gem_commands_contents_command.rb (lib): * test/rubygems/test_gem_commands_environment_command.rb (class TestGemCommandsEnvironmentCommand): * test/rubygems/test_gem_commands_install_command.rb (ERROR): * test/rubygems/test_gem_commands_update_command.rb (class TestGemCommandsUpdateCommand): * test/rubygems/test_gem_dependency_installer.rb (class TestGemDependencyInstaller): * test/rubygems/test_gem_installer.rb (load Gem): * test/rubygems/test_gem_installer.rb (gem): * test/rubygems/test_gem_request_set_lockfile.rb (GEM): * test/rubygems/test_gem_request_set_lockfile.rb (DEPENDENCIES): * test/rubygems/test_gem_specification.rb (dependencies): * test/rubygems/test_gem_specification.rb (duplicate dependency on b): * test/rubygems/test_gem_uninstaller.rb (class TestGemUninstaller): git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44515 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-01-06 20:19:28 -05:00
index = $LOAD_PATH.index RbConfig::CONFIG['sitelibdir']
index || 0
end
##
# The number of paths in the `$LOAD_PATH` from activated gems. Used to
# prioritize `-I` and `ENV['RUBYLIB`]` entries during `require`.
def self.activated_gem_paths
@activated_gem_paths ||= 0
end
##
# Add a list of paths to the $LOAD_PATH at the proper place.
def self.add_to_load_path(*paths)
@activated_gem_paths = activated_gem_paths + paths.size
# gem directories must come after -I and ENV['RUBYLIB']
$LOAD_PATH.insert(Gem.load_path_insert_index, *paths)
end
@yaml_loaded = false
##
# Loads YAML, preferring Psych
def self.load_yaml
return if @yaml_loaded
begin
# Try requiring the gem version *or* stdlib version of psych.
require 'psych'
rescue ::LoadError
# If we can't load psych, thats fine, go on.
else
# If 'yaml' has already been required, then we have to
# be sure to switch it over to the newly loaded psych.
if defined?(YAML::ENGINE) && YAML::ENGINE.yamler != "psych"
YAML::ENGINE.yamler = "psych"
end
require 'rubygems/psych_additions'
require 'rubygems/psych_tree'
end
require 'yaml'
require 'rubygems/safe_yaml'
# Now that we're sure some kind of yaml library is loaded, pull
# in our hack to deal with Syck's DefaultKey ugliness.
require 'rubygems/syck_hack'
@yaml_loaded = true
end
##
# The file name and line number of the caller of the caller of this method.
#
# +depth+ is how many layers up the call stack it should go.
#
# e.g.,
#
# def a; Gem.location_of_caller; end
# a #=> ["x.rb", 2] # (it'll vary depending on file name and line number)
#
# def b; c; end
# def c; Gem.location_of_caller(2); end
# b #=> ["x.rb", 6] # (it'll vary depending on file name and line number)
def self.location_of_caller(depth = 1)
caller[depth] =~ /(.*?):(\d+).*?$/i
file = $1
lineno = $2.to_i
[file, lineno]
end
##
# The version of the Marshal format for your Ruby.
def self.marshal_version
"#{Marshal::MAJOR_VERSION}.#{Marshal::MINOR_VERSION}"
end
##
# Set array of platforms this RubyGems supports (primarily for testing).
def self.platforms=(platforms)
@platforms = platforms
end
##
# Array of platforms this RubyGems supports.
def self.platforms
@platforms ||= []
if @platforms.empty?
@platforms = [Gem::Platform::RUBY, Gem::Platform.local]
end
@platforms
end
##
# Adds a post-build hook that will be passed an Gem::Installer instance
# when Gem::Installer#install is called. The hook is called after the gem
# has been extracted and extensions have been built but before the
# executables or gemspec has been written. If the hook returns +false+ then
# the gem's files will be removed and the install will be aborted.
def self.post_build(&hook)
@post_build_hooks << hook
end
##
# Adds a post-install hook that will be passed an Gem::Installer instance
# when Gem::Installer#install is called
def self.post_install(&hook)
@post_install_hooks << hook
end
##
# Adds a post-installs hook that will be passed a Gem::DependencyInstaller
# and a list of installed specifications when
# Gem::DependencyInstaller#install is complete
def self.done_installing(&hook)
@done_installing_hooks << hook
end
##
# Adds a hook that will get run after Gem::Specification.reset is
# run.
def self.post_reset(&hook)
@post_reset_hooks << hook
end
##
# Adds a post-uninstall hook that will be passed a Gem::Uninstaller instance
# and the spec that was uninstalled when Gem::Uninstaller#uninstall is
# called
def self.post_uninstall(&hook)
@post_uninstall_hooks << hook
end
##
# Adds a pre-install hook that will be passed an Gem::Installer instance
# when Gem::Installer#install is called. If the hook returns +false+ then
# the install will be aborted.
def self.pre_install(&hook)
@pre_install_hooks << hook
end
##
# Adds a hook that will get run before Gem::Specification.reset is
# run.
def self.pre_reset(&hook)
@pre_reset_hooks << hook
end
##
# Adds a pre-uninstall hook that will be passed an Gem::Uninstaller instance
# and the spec that will be uninstalled when Gem::Uninstaller#uninstall is
# called
def self.pre_uninstall(&hook)
@pre_uninstall_hooks << hook
end
##
# The directory prefix this RubyGems was installed at. If your
# prefix is in a standard location (ie, rubygems is installed where
# you'd expect it to be), then prefix returns nil.
def self.prefix
prefix = File.dirname RUBYGEMS_DIR
* ChangeLog: * lib/rubygems/basic_specification.rb (class Gem): * lib/rubygems/commands/contents_command.rb (prefix or only the files that are requir): * lib/rubygems/commands/install_command.rb (to write the specification by hand): * lib/rubygems/commands/setup_command.rb (class Gem): * lib/rubygems/commands/setup_command.rb (TEXT): * lib/rubygems/compatibility.rb (module Gem): * lib/rubygems/defaults.rb (module Gem): * lib/rubygems/deprecate.rb (module Gem): * lib/rubygems/installer.rb (class Gem): * lib/rubygems/platform.rb (class Gem): * lib/rubygems/rdoc.rb (class Gem): * lib/rubygems/request_set/lockfile.rb (class Gem): * lib/rubygems/resolver/installer_set.rb (class Gem): * lib/rubygems/resolver.rb (class Gem): * lib/rubygems/specification.rb (class Gem): * lib/rubygems/test_case.rb (class Gem): * lib/rubygems/test_case.rb (Also): * lib/rubygems/uninstaller.rb (class Gem): * lib/rubygems.rb (module Gem): * test/rubygems/test_gem.rb (class TestGem): * test/rubygems/test_gem_commands_contents_command.rb (lib): * test/rubygems/test_gem_commands_environment_command.rb (class TestGemCommandsEnvironmentCommand): * test/rubygems/test_gem_commands_install_command.rb (ERROR): * test/rubygems/test_gem_commands_update_command.rb (class TestGemCommandsUpdateCommand): * test/rubygems/test_gem_dependency_installer.rb (class TestGemDependencyInstaller): * test/rubygems/test_gem_installer.rb (load Gem): * test/rubygems/test_gem_installer.rb (gem): * test/rubygems/test_gem_request_set_lockfile.rb (GEM): * test/rubygems/test_gem_request_set_lockfile.rb (DEPENDENCIES): * test/rubygems/test_gem_specification.rb (dependencies): * test/rubygems/test_gem_specification.rb (duplicate dependency on b): * test/rubygems/test_gem_uninstaller.rb (class TestGemUninstaller): git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44515 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-01-06 20:19:28 -05:00
if prefix != File.expand_path(RbConfig::CONFIG['sitelibdir']) and
prefix != File.expand_path(RbConfig::CONFIG['libdir']) and
'lib' == File.basename(RUBYGEMS_DIR)
prefix
end
end
##
# Refresh available gems from disk.
def self.refresh
Gem::Specification.reset
end
##
# Safely read a file in binary mode on all platforms.
def self.read_binary(path)
File.open path, 'rb+' do |f|
f.flock(File::LOCK_EX)
f.read
end
rescue *READ_BINARY_ERRORS
File.open path, 'rb' do |f|
* ChangeLog: * lib/rubygems/basic_specification.rb (class Gem): * lib/rubygems/commands/contents_command.rb (prefix or only the files that are requir): * lib/rubygems/commands/install_command.rb (to write the specification by hand): * lib/rubygems/commands/setup_command.rb (class Gem): * lib/rubygems/commands/setup_command.rb (TEXT): * lib/rubygems/compatibility.rb (module Gem): * lib/rubygems/defaults.rb (module Gem): * lib/rubygems/deprecate.rb (module Gem): * lib/rubygems/installer.rb (class Gem): * lib/rubygems/platform.rb (class Gem): * lib/rubygems/rdoc.rb (class Gem): * lib/rubygems/request_set/lockfile.rb (class Gem): * lib/rubygems/resolver/installer_set.rb (class Gem): * lib/rubygems/resolver.rb (class Gem): * lib/rubygems/specification.rb (class Gem): * lib/rubygems/test_case.rb (class Gem): * lib/rubygems/test_case.rb (Also): * lib/rubygems/uninstaller.rb (class Gem): * lib/rubygems.rb (module Gem): * test/rubygems/test_gem.rb (class TestGem): * test/rubygems/test_gem_commands_contents_command.rb (lib): * test/rubygems/test_gem_commands_environment_command.rb (class TestGemCommandsEnvironmentCommand): * test/rubygems/test_gem_commands_install_command.rb (ERROR): * test/rubygems/test_gem_commands_update_command.rb (class TestGemCommandsUpdateCommand): * test/rubygems/test_gem_dependency_installer.rb (class TestGemDependencyInstaller): * test/rubygems/test_gem_installer.rb (load Gem): * test/rubygems/test_gem_installer.rb (gem): * test/rubygems/test_gem_request_set_lockfile.rb (GEM): * test/rubygems/test_gem_request_set_lockfile.rb (DEPENDENCIES): * test/rubygems/test_gem_specification.rb (dependencies): * test/rubygems/test_gem_specification.rb (duplicate dependency on b): * test/rubygems/test_gem_uninstaller.rb (class TestGemUninstaller): git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44515 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-01-06 20:19:28 -05:00
f.read
end
rescue Errno::ENOLCK # NFS
if Thread.main != Thread.current
raise
else
File.open path, 'rb' do |f|
f.read
end
end
end
##
# Safely write a file in binary mode on all platforms.
def self.write_binary(path, data)
open(path, 'wb') do |io|
begin
io.flock(File::LOCK_EX)
rescue *WRITE_BINARY_ERRORS
end
io.write data
end
rescue Errno::ENOLCK # NFS
if Thread.main != Thread.current
raise
else
open(path, 'wb') do |io|
io.write data
end
end
end
##
# The path to the running Ruby interpreter.
def self.ruby
if @ruby.nil?
@ruby = RbConfig.ruby
@ruby = "\"#{@ruby}\"" if @ruby =~ /\s/
end
@ruby
end
##
# Returns a String containing the API compatibility version of Ruby
def self.ruby_api_version
* ChangeLog: * lib/rubygems/basic_specification.rb (class Gem): * lib/rubygems/commands/contents_command.rb (prefix or only the files that are requir): * lib/rubygems/commands/install_command.rb (to write the specification by hand): * lib/rubygems/commands/setup_command.rb (class Gem): * lib/rubygems/commands/setup_command.rb (TEXT): * lib/rubygems/compatibility.rb (module Gem): * lib/rubygems/defaults.rb (module Gem): * lib/rubygems/deprecate.rb (module Gem): * lib/rubygems/installer.rb (class Gem): * lib/rubygems/platform.rb (class Gem): * lib/rubygems/rdoc.rb (class Gem): * lib/rubygems/request_set/lockfile.rb (class Gem): * lib/rubygems/resolver/installer_set.rb (class Gem): * lib/rubygems/resolver.rb (class Gem): * lib/rubygems/specification.rb (class Gem): * lib/rubygems/test_case.rb (class Gem): * lib/rubygems/test_case.rb (Also): * lib/rubygems/uninstaller.rb (class Gem): * lib/rubygems.rb (module Gem): * test/rubygems/test_gem.rb (class TestGem): * test/rubygems/test_gem_commands_contents_command.rb (lib): * test/rubygems/test_gem_commands_environment_command.rb (class TestGemCommandsEnvironmentCommand): * test/rubygems/test_gem_commands_install_command.rb (ERROR): * test/rubygems/test_gem_commands_update_command.rb (class TestGemCommandsUpdateCommand): * test/rubygems/test_gem_dependency_installer.rb (class TestGemDependencyInstaller): * test/rubygems/test_gem_installer.rb (load Gem): * test/rubygems/test_gem_installer.rb (gem): * test/rubygems/test_gem_request_set_lockfile.rb (GEM): * test/rubygems/test_gem_request_set_lockfile.rb (DEPENDENCIES): * test/rubygems/test_gem_specification.rb (dependencies): * test/rubygems/test_gem_specification.rb (duplicate dependency on b): * test/rubygems/test_gem_uninstaller.rb (class TestGemUninstaller): git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44515 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-01-06 20:19:28 -05:00
@ruby_api_version ||= RbConfig::CONFIG['ruby_version'].dup
end
def self.env_requirement(gem_name)
@env_requirements_by_name ||= {}
@env_requirements_by_name[gem_name] ||= begin
req = ENV["GEM_REQUIREMENT_#{gem_name.upcase}"] || '>= 0'.freeze
Gem::Requirement.create(req)
end
end
post_reset { @env_requirements_by_name = {} }
##
# Returns the latest release-version specification for the gem +name+.
def self.latest_spec_for(name)
dependency = Gem::Dependency.new name
fetcher = Gem::SpecFetcher.fetcher
spec_tuples, = fetcher.spec_for_dependency dependency
spec, = spec_tuples.first
spec
end
##
# Returns the latest release version of RubyGems.
def self.latest_rubygems_version
latest_version_for('rubygems-update') or
raise "Can't find 'rubygems-update' in any repo. Check `gem source list`."
end
##
# Returns the version of the latest release-version of gem +name+
def self.latest_version_for(name)
spec = latest_spec_for name
spec and spec.version
end
##
# A Gem::Version for the currently running Ruby.
def self.ruby_version
return @ruby_version if defined? @ruby_version
version = RUBY_VERSION.dup
if defined?(RUBY_PATCHLEVEL) && RUBY_PATCHLEVEL != -1
version << ".#{RUBY_PATCHLEVEL}"
elsif defined?(RUBY_DESCRIPTION)
if RUBY_ENGINE == "ruby"
desc = RUBY_DESCRIPTION[/\Aruby #{Regexp.quote(RUBY_VERSION)}([^ ]+) /, 1]
else
desc = RUBY_DESCRIPTION[/\A#{RUBY_ENGINE} #{Regexp.quote(RUBY_ENGINE_VERSION)} \(#{RUBY_VERSION}([^ ]+)\) /, 1]
end
version << ".#{desc}" if desc
end
@ruby_version = Gem::Version.new version
end
##
# A Gem::Version for the currently running RubyGems
def self.rubygems_version
return @rubygems_version if defined? @rubygems_version
@rubygems_version = Gem::Version.new Gem::VERSION
end
##
# Returns an Array of sources to fetch remote gems from. Uses
# default_sources if the sources list is empty.
def self.sources
source_list = configuration.sources || default_sources
@sources ||= Gem::SourceList.from(source_list)
end
##
# Need to be able to set the sources without calling
# Gem.sources.replace since that would cause an infinite loop.
#
# DOC: This comment is not documentation about the method itself, it's
# more of a code comment about the implementation.
def self.sources=(new_sources)
if !new_sources
@sources = nil
else
@sources = Gem::SourceList.from(new_sources)
end
end
##
# Glob pattern for require-able path suffixes.
def self.suffix_pattern
@suffix_pattern ||= "{#{suffixes.join(',')}}"
end
##
# Regexp for require-able path suffixes.
def self.suffix_regexp
@suffix_regexp ||= /#{Regexp.union(suffixes)}\z/
end
##
# Glob pattern for require-able plugin suffixes.
def self.plugin_suffix_pattern
@plugin_suffix_pattern ||= "_plugin#{suffix_pattern}"
end
##
# Regexp for require-able plugin suffixes.
def self.plugin_suffix_regexp
@plugin_suffix_regexp ||= /_plugin#{suffix_regexp}\z/
end
##
# Suffixes for require-able paths.
def self.suffixes
@suffixes ||= ['',
'.rb',
*%w[DLEXT DLEXT2].map do |key|
val = RbConfig::CONFIG[key]
next unless val and not val.empty?
".#{val}"
end
].compact.uniq
end
##
# Prints the amount of time the supplied block takes to run using the debug
# UI output.
def self.time(msg, width = 0, display = Gem.configuration.verbose)
now = Time.now
value = yield
elapsed = Time.now - now
ui.say "%2$*1$s: %3$3.3fs" % [-width, msg, elapsed] if display
value
end
##
# Lazily loads DefaultUserInteraction and returns the default UI.
def self.ui
require 'rubygems/user_interaction'
Gem::DefaultUserInteraction.ui
end
##
# Use the +home+ and +paths+ values for Gem.dir and Gem.path. Used mainly
# by the unit tests to provide environment isolation.
def self.use_paths(home, *paths)
paths.flatten!
paths.compact!
hash = { "GEM_HOME" => home, "GEM_PATH" => paths.empty? ? home : paths.join(File::PATH_SEPARATOR) }
hash.delete_if {|_, v| v.nil? }
self.paths = hash
end
##
# Is this a windows platform?
def self.win_platform?
if @@win_platform.nil?
ruby_platform = RbConfig::CONFIG['host_os']
@@win_platform = !!WIN_PATTERNS.find {|r| ruby_platform =~ r }
end
@@win_platform
end
##
# Is this a java platform?
def self.java_platform?
RUBY_PLATFORM == "java"
end
##
# Load +plugins+ as Ruby files
def self.load_plugin_files(plugins) # :nodoc:
plugins.each do |plugin|
# Skip older versions of the GemCutter plugin: Its commands are in
# RubyGems proper now.
next if plugin =~ /gemcutter-0\.[0-3]/
begin
load plugin
rescue ::Exception => e
details = "#{plugin.inspect}: #{e.message} (#{e.class})"
warn "Error loading RubyGems plugin #{details}"
end
end
end
##
# Find rubygems plugin files in the standard location and load them
def self.load_plugins
load_plugin_files Gem::Util.glob_files_in_dir("*#{Gem.plugin_suffix_pattern}", plugindir)
end
##
# Find all 'rubygems_plugin' files in $LOAD_PATH and load them
def self.load_env_plugins
load_plugin_files find_files_from_load_path("rubygems_plugin")
end
##
# Looks for a gem dependency file at +path+ and activates the gems in the
# file if found. If the file is not found an ArgumentError is raised.
#
# If +path+ is not given the RUBYGEMS_GEMDEPS environment variable is used,
# but if no file is found no exception is raised.
#
# If '-' is given for +path+ RubyGems searches up from the current working
# directory for gem dependency files (gem.deps.rb, Gemfile, Isolate) and
# activates the gems in the first one found.
#
# You can run this automatically when rubygems starts. To enable, set
# the <code>RUBYGEMS_GEMDEPS</code> environment variable to either the path
# of your gem dependencies file or "-" to auto-discover in parent
# directories.
#
# NOTE: Enabling automatic discovery on multiuser systems can lead to
# execution of arbitrary code when used from directories outside your
# control.
def self.use_gemdeps(path = nil)
raise_exception = path
path ||= ENV['RUBYGEMS_GEMDEPS']
return unless path
path = path.dup
if path == "-"
Gem::Util.traverse_parents Dir.pwd do |directory|
dep_file = GEM_DEP_FILES.find {|f| File.file?(f) }
next unless dep_file
path = File.join directory, dep_file
break
end
end
path.tap(&Gem::UNTAINT)
unless File.file? path
return unless raise_exception
raise ArgumentError, "Unable to find gem dependencies file at #{path}"
end
ENV["BUNDLE_GEMFILE"] ||= File.expand_path(path)
require 'rubygems/user_interaction'
Gem::DefaultUserInteraction.use_ui(ui) do
require "bundler"
begin
Bundler.ui.silence do
@gemdeps = Bundler.setup
end
ensure
Gem::DefaultUserInteraction.ui.close
end
@gemdeps.requested_specs.map(&:to_spec).sort_by(&:name)
end
rescue => e
case e
when Gem::LoadError, Gem::UnsatisfiableDependencyError, (defined?(Bundler::GemNotFound) ? Bundler::GemNotFound : Gem::LoadError)
warn e.message
warn "You may need to `gem install -g` to install missing gems"
warn ""
else
raise
end
end
##
# If the SOURCE_DATE_EPOCH environment variable is set, returns it's value.
# Otherwise, returns the time that `Gem.source_date_epoch_string` was
# first called in the same format as SOURCE_DATE_EPOCH.
#
# NOTE(@duckinator): The implementation is a tad weird because we want to:
# 1. Make builds reproducible by default, by having this function always
# return the same result during a given run.
# 2. Allow changing ENV['SOURCE_DATE_EPOCH'] at runtime, since multiple
# tests that set this variable will be run in a single process.
#
# If you simplify this function and a lot of tests fail, that is likely
# due to #2 above.
#
# Details on SOURCE_DATE_EPOCH:
# https://reproducible-builds.org/specs/source-date-epoch/
def self.source_date_epoch_string
# The value used if $SOURCE_DATE_EPOCH is not set.
@default_source_date_epoch ||= Time.now.to_i.to_s
specified_epoch = ENV["SOURCE_DATE_EPOCH"]
# If it's empty or just whitespace, treat it like it wasn't set at all.
specified_epoch = nil if !specified_epoch.nil? && specified_epoch.strip.empty?
epoch = specified_epoch || @default_source_date_epoch
epoch.strip
end
##
# Returns the value of Gem.source_date_epoch_string, as a Time object.
#
# This is used throughout RubyGems for enabling reproducible builds.
def self.source_date_epoch
Time.at(self.source_date_epoch_string.to_i).utc.freeze
end
# FIX: Almost everywhere else we use the `def self.` way of defining class
# methods, and then we switch over to `class << self` here. Pick one or the
# other.
class << self
##
# RubyGems distributors (like operating system package managers) can
# disable RubyGems update by setting this to error message printed to
# end-users on gem update --system instead of actual update.
attr_accessor :disable_system_update_message
##
# Hash of loaded Gem::Specification keyed by name
attr_reader :loaded_specs
##
# GemDependencyAPI object, which is set when .use_gemdeps is called.
# This contains all the information from the Gemfile.
attr_reader :gemdeps
##
# Register a Gem::Specification for default gem.
#
# Two formats for the specification are supported:
#
# * MRI 2.0 style, where spec.files contains unprefixed require names.
# The spec's filenames will be registered as-is.
# * New style, where spec.files contains files prefixed with paths
# from spec.require_paths. The prefixes are stripped before
# registering the spec's filenames. Unprefixed files are omitted.
#
def register_default_spec(spec)
extended_require_paths = spec.require_paths.map {|f| f + "/" }
[rubygems/rubygems] Fix incorrect bundler version being required In ruby 2.7.0, there's a slight change in bundler's default gemspec file where the executable folder of the bundler gem is `libexec` instead of `exe`. I made that change in https://github.com/ruby/ruby/pull/2380 to try to simplify the integration of the `bundler` gem with upstream, minimizing the number of changes that need to be made to the gemspec to adapt to the structure of ruby-core. That worked ok, expected for this issue. The new name of the folder including the executable files uncovered a bug in rubygems, which is the following: * In order to be able to use newer versions of default gems, `rubygems` ships with a customized `require` that has knowledge about which files belong to which default gem. If one of these files is required, `rubygems` will detect that and activate its gem mechanism to choose the newest version of the corresponding default gem present in the system (unless a different version has already been activated). It's this part of the custom require: https://github.com/rubygems/rubygems/blob/ea3e6f194df500b028b52b3b64decbd3df1d5ab0/lib/rubygems/core_ext/kernel_require.rb#L77-L85 * In order to do that, `rubygems` registers a map of default gems and their files when it is first required: https://github.com/rubygems/rubygems/blob/ea3e6f194df500b028b52b3b64decbd3df1d5ab0/lib/rubygems.rb#L1247-L1276 As explained in the method's header, two types of default gem specifications are supported. One of the formats is the style used by some ruby-core gemspec files, where paths inside the `spec.files` array don't include the `spec.require_paths` part. So in this "old style", if a gem ships with a `lib/bundler.rb` file, it will be registered in this array as `spec.files = ["bundler.rb"]`, not as `spec.files = ["lib/bundler.rb"]`. The `Gem.register_default_spec` method "detects" this style by making sure that none of the files in the `spec.files` array start with any of the `spec.require_paths`. * Since in ruby 2.7 the default specification file of the `bundler` gem includes a `libexec/bundle` file, this check would no longer work correctly, because even though the specification file is still "old style", it has one registered file which starts with "lib", one of the "require paths" of the gem. * This means that the gem is incorrectly detected as "new style", but since none of the paths start with "lib/", no files are actually registered, so the gem is not being considered a default gem, and thus the default version is always used with no possibility of being "upgraded". The fix of the problem is simple: check that no files start with `lib/` (or any other require paths), instead of with "lib" which doesn't exclude other potential "non requirable folder" starting with lib, like in the `bundler` case. https://github.com/rubygems/rubygems/commit/94df740c2b
2020-03-29 15:45:39 -04:00
new_format = extended_require_paths.any? {|path| spec.files.any? {|f| f.start_with? path } }
if new_format
prefix_group = extended_require_paths.join("|")
prefix_pattern = /^(#{prefix_group})/
end
spec.files.each do |file|
if new_format
file = file.sub(prefix_pattern, "")
next unless $~
end
spec.activate if already_loaded?(file)
@path_to_default_spec_map[file] = spec
@path_to_default_spec_map[file.sub(suffix_regexp, "")] = spec
end
end
##
# Find a Gem::Specification of default gem from +path+
def find_unresolved_default_spec(path)
default_spec = @path_to_default_spec_map[path]
return default_spec if default_spec && loaded_specs[default_spec.name] != default_spec
end
##
# Clear default gem related variables. It is for test
def clear_default_specs
@path_to_default_spec_map.clear
end
##
# The list of hooks to be run after Gem::Installer#install extracts files
# and builds extensions
attr_reader :post_build_hooks
##
# The list of hooks to be run after Gem::Installer#install completes
# installation
attr_reader :post_install_hooks
##
# The list of hooks to be run after Gem::DependencyInstaller installs a
# set of gems
attr_reader :done_installing_hooks
##
# The list of hooks to be run after Gem::Specification.reset is run.
attr_reader :post_reset_hooks
##
# The list of hooks to be run after Gem::Uninstaller#uninstall completes
# installation
attr_reader :post_uninstall_hooks
##
# The list of hooks to be run before Gem::Installer#install does any work
attr_reader :pre_install_hooks
##
# The list of hooks to be run before Gem::Specification.reset is run.
attr_reader :pre_reset_hooks
##
# The list of hooks to be run before Gem::Uninstaller#uninstall does any
# work
attr_reader :pre_uninstall_hooks
private
def already_loaded?(file)
[rubygems/rubygems] Optimize Gem.already_loaded? Profiling a simple `ruby -e '1'` I see: ``` ================================== Mode: wall(10) Samples: 3414 (55.10% miss rate) GC: 856 (25.07%) ================================== TOTAL (pct) SAMPLES (pct) FRAME 689 (20.2%) 669 (19.6%) Gem.already_loaded? 462 (13.5%) 462 (13.5%) (marking) 393 (11.5%) 393 (11.5%) (sweeping) 815 (23.9%) 365 (10.7%) Gem::Specification.load 1050 (30.8%) 156 (4.6%) Gem.register_default_spec 100 (2.9%) 84 (2.5%) Gem::Specification#files 64 (1.9%) 64 (1.9%) Gem::BasicSpecification#internal_init 136 (4.0%) 59 (1.7%) <top (required)> 2312 (67.7%) 58 (1.7%) <top (required)> 57 (1.7%) 57 (1.7%) RbConfig.expand 81 (2.4%) 55 (1.6%) Gem::Requirement.parse 191 (5.6%) 51 (1.5%) <top (required)> 128 (3.7%) 47 (1.4%) Gem::Requirement#initialize 41 (1.2%) 41 (1.2%) Gem.suffix_regexp 229 (6.7%) 35 (1.0%) <module:Gem> 260 (7.6%) 34 (1.0%) Kernel#require ``` So clearly `Gem.already_loaded?` is a major hotspot. After this optimization, it's down to: ``` ================================== Mode: wall(10) Samples: 2653 (58.21% miss rate) GC: 718 (27.06%) ================================== TOTAL (pct) SAMPLES (pct) FRAME 416 (15.7%) 416 (15.7%) (marking) 715 (27.0%) 312 (11.8%) Gem::Specification.load 299 (11.3%) 299 (11.3%) (sweeping) 279 (10.5%) 279 (10.5%) Gem.already_loaded? 564 (21.3%) 106 (4.0%) Gem.register_default_spec 95 (3.6%) 80 (3.0%) Gem::Specification#files 72 (2.7%) 72 (2.7%) Gem::BasicSpecification#internal_init 129 (4.9%) 58 (2.2%) <top (required)> 53 (2.0%) 53 (2.0%) RbConfig.expand 1697 (64.0%) 52 (2.0%) <top (required)> 68 (2.6%) 49 (1.8%) Gem::Requirement.parse 183 (6.9%) 48 (1.8%) <top (required)> 112 (4.2%) 44 (1.7%) Gem::Requirement#initialize 220 (8.3%) 33 (1.2%) <module:Gem> 250 (9.4%) 32 (1.2%) Kernel#require ``` The idea is that the vast majority of the time `already_loaded?` won't match anything. So by first looking for candidate paths that `end_with?` the file we look for, we save `default_gem_load_paths.size` iterations and string concatenations. https://github.com/rubygems/rubygems/commit/c60ce88d49
2020-07-06 09:18:05 -04:00
$LOADED_FEATURES.any? do |feature_path|
feature_path.end_with?(file) && default_gem_load_paths.any? {|load_path_entry| feature_path == "#{load_path_entry}/#{file}" }
end
end
def default_gem_load_paths
@default_gem_load_paths ||= $LOAD_PATH[load_path_insert_index..-1]
end
end
##
# Location of Marshal quick gemspecs on remote repositories
MARSHAL_SPEC_DIR = "quick/Marshal.#{Gem.marshal_version}/".freeze
autoload :BundlerVersionFinder, File.expand_path('rubygems/bundler_version_finder', __dir__)
autoload :ConfigFile, File.expand_path('rubygems/config_file', __dir__)
autoload :Dependency, File.expand_path('rubygems/dependency', __dir__)
autoload :DependencyList, File.expand_path('rubygems/dependency_list', __dir__)
autoload :Installer, File.expand_path('rubygems/installer', __dir__)
autoload :Licenses, File.expand_path('rubygems/util/licenses', __dir__)
autoload :NameTuple, File.expand_path('rubygems/name_tuple', __dir__)
autoload :PathSupport, File.expand_path('rubygems/path_support', __dir__)
autoload :Platform, File.expand_path('rubygems/platform', __dir__)
autoload :RequestSet, File.expand_path('rubygems/request_set', __dir__)
autoload :Requirement, File.expand_path('rubygems/requirement', __dir__)
autoload :Resolver, File.expand_path('rubygems/resolver', __dir__)
autoload :Source, File.expand_path('rubygems/source', __dir__)
autoload :SourceList, File.expand_path('rubygems/source_list', __dir__)
autoload :SpecFetcher, File.expand_path('rubygems/spec_fetcher', __dir__)
autoload :Specification, File.expand_path('rubygems/specification', __dir__)
autoload :Util, File.expand_path('rubygems/util', __dir__)
autoload :Version, File.expand_path('rubygems/version', __dir__)
end
require 'rubygems/exceptions'
# REFACTOR: This should be pulled out into some kind of hacks file.
begin
##
# Defaults the operating system (or packager) wants to provide for RubyGems.
require 'rubygems/defaults/operating_system'
rescue LoadError
end
begin
##
# Defaults the Ruby implementation wants to provide for RubyGems
require "rubygems/defaults/#{RUBY_ENGINE}"
rescue LoadError
end
##
# Loads the default specs.
Gem::Specification.load_defaults
require 'rubygems/core_ext/kernel_gem'
require 'rubygems/core_ext/kernel_require'
require 'rubygems/core_ext/kernel_warn'
Gem.use_gemdeps