Module: Gem

Defined in:
lib/rubygems.rb,
lib/rubygems.rb,
lib/rubygems/errors.rb,
lib/rubygems/openssl.rb,
lib/rubygems/version.rb,
lib/rubygems/defaults.rb,
lib/rubygems/deprecate.rb,
lib/rubygems/safe_yaml.rb,
lib/rubygems/util/list.rb,
lib/rubygems/psych_tree.rb,
lib/rubygems/ci_detector.rb,
lib/rubygems/safe_marshal.rb,
lib/rubygems/win_platform.rb,
lib/rubygems/yaml_serializer.rb,
lib/rubygems/safe_marshal/reader.rb,
lib/rubygems/specification_record.rb,
lib/rubygems/safe_marshal/elements.rb,
lib/rubygems/vendor/uri/lib/uri/common.rb

Overview

module Gem::URI

Defined Under Namespace

Modules: BundlerVersionFinder, CIDetector, Commands, DefaultUserInteraction, Deprecate, Ext, GemcutterUtilities, GemspecHelpers, InstallUpdateOptions, InstallerUninstallerUtils, LocalRemoteOptions, Molinillo, Net, QueryUtils, SafeMarshal, SafeYAML, SecureRandom, Security, SecurityOption, TSort, Text, Timeout, URI, UpdateSuggestion, UserInteraction, Util, VersionOption, YAMLSerializer Classes: AvailableSet, BasicSpecification, Command, CommandLineError, CommandManager, ConfigFile, ConflictError, ConsoleUI, Dependency, DependencyError, DependencyInstaller, DependencyList, DependencyRemovalException, DependencyResolutionError, Doctor, DocumentError, EndOfYAMLException, ErrorReason, Exception, FilePermissionError, FormatException, GemNotFoundException, GemNotInHomeException, GemRunner, ImpossibleDependenciesError, InstallError, Installer, InvalidSpecificationException, Licenses, List, LoadError, MissingSpecError, MissingSpecVersionError, NameTuple, NoAliasYAMLTree, OperationNotSupportedError, OptionParser, Package, PackageTask, PathSupport, Platform, PlatformMismatch, RemoteError, RemoteFetcher, RemoteInstallationCancelled, RemoteInstallationSkipped, RemoteSourceException, Request, RequestSet, Requirement, Resolv, Resolver, RubyVersionMismatch, RuntimeRequirementNotMetError, S3URISigner, SilentUI, Source, SourceFetchProblem, SourceList, SpecFetcher, SpecificGemNotFoundException, Specification, SpecificationPolicy, SpecificationRecord, StreamUI, StubSpecification, SystemExitException, TargetRbConfig, UninstallError, Uninstaller, UnknownCommandError, UnknownCommandSpellChecker, UnsatisfiableDependencyError, Uri, UriFormatter, Validator, VerificationError, Version, WebauthnVerificationError

Constant Summary collapse

VERSION = 
"4.0.5"
RUBYGEMS_DIR = 
__dir__
GEM_DEP_FILES = 
%w[
  gem.deps.rb
  gems.rb
  Gemfile
  Isolate
].freeze
REPOSITORY_SUBDIRECTORIES =

Subdirectories in a gem repository

%w[
  build_info
  cache
  doc
  extensions
  gems
  plugins
  specifications
].freeze
REPOSITORY_DEFAULT_GEM_SUBDIRECTORIES =

Subdirectories in a gem repository for default gems

%w[
  gems
  specifications/default
].freeze
DEFAULT_SOURCE_DATE_EPOCH =

The default value for SOURCE_DATE_EPOCH if not specified. We want a date after 1980-01-01, to prevent issues with Zip files. This particular timestamp is for 1980-01-02 00:00:00 GMT.

315_619_200
LOADED_SPECS_MUTEX = 
Thread::Mutex.new
MARSHAL_SPEC_DIR =

Location of Marshal quick gemspecs on remote repositories

"quick/Marshal.#{Gem.marshal_version}/".freeze
HAVE_OPENSSL =

:nodoc:

defined? OpenSSL::SSL # :nodoc:
DEFAULT_HOST = 
"https://rubygems.org"
WIN_PATTERNS =

An Array of Regexps that match windows Ruby platforms.

[
  /bccwin/i,
  /cygwin/i,
  /djgpp/i,
  /mingw/i,
  /mswin/i,
  /wince/i,
].freeze
@@win_platform = 
nil

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.disable_system_update_message ⇒ Object

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.



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# File 'lib/rubygems.rb', line 1246

def disable_system_update_message
  @disable_system_update_message
end

.discover_gems_on_require ⇒ Object

Whether RubyGems should enhance builtin require to automatically check whether the path required is present in installed gems, and automatically activate them and add them to ‘$LOAD_PATH`.



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# File 'lib/rubygems.rb', line 1253

def discover_gems_on_require
  @discover_gems_on_require
end

.done_installing_hooks ⇒ Object (readonly)

The list of hooks to be run after Gem::DependencyInstaller installs a set of gems



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# File 'lib/rubygems.rb', line 1338

def done_installing_hooks
  @done_installing_hooks
end

.gemdeps ⇒ Object (readonly)

GemDependencyAPI object, which is set when .use_gemdeps is called. This contains all the information from the Gemfile.



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# File 'lib/rubygems.rb', line 1264

def gemdeps
  @gemdeps
end

.loaded_specs ⇒ Object (readonly)

Hash of loaded Gem::Specification keyed by name



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# File 'lib/rubygems.rb', line 1258

def loaded_specs
  @loaded_specs
end

.post_build_hooks ⇒ Object (readonly)

The list of hooks to be run after Gem::Installer#install extracts files and builds extensions



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# File 'lib/rubygems.rb', line 1326

def post_build_hooks
  @post_build_hooks
end

.post_install_hooks ⇒ Object (readonly)

The list of hooks to be run after Gem::Installer#install completes installation



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# File 'lib/rubygems.rb', line 1332

def post_install_hooks
  @post_install_hooks
end

.post_reset_hooks ⇒ Object (readonly)

The list of hooks to be run after Gem::Specification.reset is run.



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# File 'lib/rubygems.rb', line 1343

def post_reset_hooks
  @post_reset_hooks
end

.post_uninstall_hooks ⇒ Object (readonly)

The list of hooks to be run after Gem::Uninstaller#uninstall completes installation



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# File 'lib/rubygems.rb', line 1349

def post_uninstall_hooks
  @post_uninstall_hooks
end

.pre_install_hooks ⇒ Object (readonly)

The list of hooks to be run before Gem::Installer#install does any work



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# File 'lib/rubygems.rb', line 1354

def pre_install_hooks
  @pre_install_hooks
end

.pre_reset_hooks ⇒ Object (readonly)

The list of hooks to be run before Gem::Specification.reset is run.



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# File 'lib/rubygems.rb', line 1359

def pre_reset_hooks
  @pre_reset_hooks
end

.pre_uninstall_hooks ⇒ Object (readonly)

The list of hooks to be run before Gem::Uninstaller#uninstall does any work



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# File 'lib/rubygems.rb', line 1365

def pre_uninstall_hooks
  @pre_uninstall_hooks
end

Class Method Details

.activate_and_load_bin_path(name, exec_name = nil, *requirements) ⇒ Object

Find and load 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.



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# File 'lib/rubygems.rb', line 282

def self.activate_and_load_bin_path(name, exec_name = nil, *requirements)
  spec = find_and_activate_spec_for_exe name, exec_name, requirements

  if spec.name == "bundler"
    # Old versions of Bundler need a workaround to support nested `bundle
    # exec` invocations by overriding `Gem.activate_bin_path`. However,
    # RubyGems now uses this new `Gem.activate_and_load_bin_path` helper in
    # binstubs, which is of course not overridden in Bundler since it didn't
    # exist at the time. So, include the override here to workaround that.
    load ENV["BUNDLE_BIN_PATH"] if ENV["BUNDLE_BIN_PATH"] && spec.version <= Gem::Version.create("2.5.22")

    # Make sure there's no version of Bundler in `$LOAD_PATH` that's different
    # from the version we just activated. If that was the case (it happens
    # when testing Bundler from ruby/ruby), we would load Bundler extensions
    # to RubyGems from the copy in `$LOAD_PATH` but then load the binstub from
    # an installed copy, causing those copies to be mixed and yet more
    # redefinition warnings.
    #
    require_path = $LOAD_PATH.resolve_feature_path("bundler").last.delete_suffix("/bundler.rb")
    Gem.load_bundler_extensions(spec.version) if spec.full_require_paths.include?(require_path)
  end

  load spec.bin_file(exec_name)
end

.activate_bin_path(name, exec_name = nil, *requirements) ⇒ Object

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.



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# File 'lib/rubygems.rb', line 318

def self.activate_bin_path(name, exec_name = nil, *requirements) # :nodoc:
  find_and_activate_spec_for_exe(name, exec_name, requirements).bin_file exec_name
end

.activated_gem_paths ⇒ Object

The number of paths in the $LOAD_PATH from activated gems. Used to prioritize -I and ENV['RUBYLIB'] entries during require.



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# File 'lib/rubygems.rb', line 625

def self.activated_gem_paths
  @activated_gem_paths ||= 0
end

.add_to_load_path(*paths) ⇒ Object

Add a list of paths to the $LOAD_PATH at the proper place.



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# File 'lib/rubygems.rb', line 632

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

.bin_path(name, exec_name = nil, *requirements) ⇒ Object

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.



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# File 'lib/rubygems.rb', line 230

def self.bin_path(name, exec_name = nil, *requirements)
  requirements = Gem::Requirement.default if
    requirements.empty?

  find_spec_for_exe(name, exec_name, requirements).bin_file exec_name
end

.binary_mode ⇒ Object

The mode needed to read a file as straight binary.



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# File 'lib/rubygems.rb', line 325

def self.binary_mode
  "rb"
end

.bindir(install_dir = Gem.dir) ⇒ Object

The path where gem executables are to be installed.



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# File 'lib/rubygems.rb', line 332

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

.cache_home ⇒ Object

The path to standard location of the user’s cache directory.



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# File 'lib/rubygems/defaults.rb', line 147

def self.cache_home
  @cache_home ||= ENV["XDG_CACHE_HOME"] || File.join(Gem.user_home, ".cache")
end

.clear_default_specs ⇒ Object

Clear default gem related variables. It is for test



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# File 'lib/rubygems.rb', line 1318

def clear_default_specs
  @path_to_default_spec_map.clear
end

.clear_paths ⇒ Object

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.



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# File 'lib/rubygems.rb', line 350

def self.clear_paths
  @paths         = nil
  @user_home     = nil
  Gem::Specification.reset
  Gem::Security.reset if defined?(Gem::Security)
end

.config_file ⇒ Object

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



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# File 'lib/rubygems/defaults.rb', line 133

def self.config_file
  @config_file ||= find_config_file
end

.config_home ⇒ Object

The path to standard location of the user’s configuration directory.



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# File 'lib/rubygems/defaults.rb', line 114

def self.config_home
  @config_home ||= ENV["XDG_CONFIG_HOME"] || File.join(Gem.user_home, ".config")
end

.configuration ⇒ Object

The standard configuration object for gems.



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# File 'lib/rubygems.rb', line 360

def self.configuration
  @configuration ||= Gem::ConfigFile.new []
end

.configuration=(config) ⇒ Object

Use the given configuration object (which implements the ConfigFile protocol) as the standard configuration object.



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# File 'lib/rubygems.rb', line 368

def self.configuration=(config)
  @configuration = config
end

.data_home ⇒ Object

The path to standard location of the user’s data directory.



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# File 'lib/rubygems/defaults.rb', line 154

def self.data_home
  @data_home ||= ENV["XDG_DATA_HOME"] || File.join(Gem.user_home, ".local", "share")
end

.default_bindir ⇒ Object

The default directory for binaries



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# File 'lib/rubygems/defaults.rb', line 204

def self.default_bindir
  RbConfig::CONFIG["bindir"]
end

.default_cert_path ⇒ Object

The default signing certificate chain path



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# File 'lib/rubygems/defaults.rb', line 228

def self.default_cert_path
  default_cert_path = File.join Gem.user_home, ".gem", "gem-public_cert.pem"

  unless File.exist?(default_cert_path)
    default_cert_path = File.join Gem.data_home, "gem", "gem-public_cert.pem"
  end

  default_cert_path
end

.default_dir ⇒ Object

Default home directory path to be used if an alternate value is not specified in the environment



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# File 'lib/rubygems/defaults.rb', line 37

def self.default_dir
  @default_dir ||= File.join(RbConfig::CONFIG["rubylibprefix"], "gems", RbConfig::CONFIG["ruby_version"])
end

.default_exec_format ⇒ Object

Deduce Ruby’s –program-prefix and –program-suffix from its install name



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# File 'lib/rubygems/defaults.rb', line 186

def self.default_exec_format
  exec_format = begin
                  RbConfig::CONFIG["ruby_install_name"].sub("ruby", "%s")
                rescue StandardError
                  "%s"
                end

  unless exec_format.include?("%s")
    raise Gem::Exception,
      "[BUG] invalid exec_format #{exec_format.inspect}, no %s"
  end

  exec_format
end

.default_ext_dir_for(base_dir) ⇒ Object

Returns binary extensions dir for specified RubyGems base dir or nil if such directory cannot be determined.

By default, the binary extensions are located side by side with their Ruby counterparts, therefore nil is returned



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# File 'lib/rubygems/defaults.rb', line 48

def self.default_ext_dir_for(base_dir)
  nil
end

.default_key_path ⇒ Object

The default signing key path



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# File 'lib/rubygems/defaults.rb', line 215

def self.default_key_path
  default_key_path = File.join Gem.user_home, ".gem", "gem-private_key.pem"

  unless File.exist?(default_key_path)
    default_key_path = File.join Gem.data_home, "gem", "gem-private_key.pem"
  end

  default_key_path
end

.default_path ⇒ Object

Default gem load path



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# File 'lib/rubygems/defaults.rb', line 175

def self.default_path
  path = []
  path << user_dir if user_home && File.exist?(user_home)
  path << default_dir
  path << vendor_dir if vendor_dir && File.directory?(vendor_dir)
  path
end

.default_rubygems_dirs ⇒ Object

Paths where RubyGems’ .rb files and bin files are installed



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# File 'lib/rubygems/defaults.rb', line 55

def self.default_rubygems_dirs
  nil # default to standard layout
end

.default_sources ⇒ Object

An Array of the default sources that come with RubyGems



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# File 'lib/rubygems/defaults.rb', line 15

def self.default_sources
  @default_sources ||= %w[https://rubygems.org/]
end

.default_spec_cache_dir ⇒ Object

Default spec directory path to be used if an alternate value is not specified in the environment



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# File 'lib/rubygems/defaults.rb', line 23

def self.default_spec_cache_dir
  default_spec_cache_dir = File.join Gem.user_home, ".gem", "specs"

  unless File.exist?(default_spec_cache_dir)
    default_spec_cache_dir = File.join Gem.cache_home, "gem", "specs"
  end

  default_spec_cache_dir
end

.default_specifications_dir ⇒ Object

Path to specification files of default gems.



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# File 'lib/rubygems/defaults.rb', line 62

def self.default_specifications_dir
  @default_specifications_dir ||= File.join(Gem.default_dir, "specifications", "default")
end

.default_user_install ⇒ Object

Enables automatic installation into user directory



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# File 'lib/rubygems/defaults.rb', line 241

def self.default_user_install # :nodoc:
  if !ENV.key?("GEM_HOME") && File.exist?(Gem.dir) && !File.writable?(Gem.dir)
    Gem.ui.say "Defaulting to user installation because default installation directory (#{Gem.dir}) is not writable."
    return true
  end

  false
end

.deflate(data) ⇒ Object

A Zlib::Deflate.deflate wrapper



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# File 'lib/rubygems.rb', line 375

def self.deflate(data)
  require "zlib"
  Zlib::Deflate.deflate data
end

.dir ⇒ Object

The path where gems are to be installed.



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# File 'lib/rubygems.rb', line 423

def self.dir
  paths.home
end

.done_installing(&hook) ⇒ Object

Adds a post-installs hook that will be passed a Gem::DependencyInstaller and a list of installed specifications when Gem::DependencyInstaller#install is complete



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# File 'lib/rubygems.rb', line 760

def self.done_installing(&hook)
  @done_installing_hooks << hook
end

.dynamic_library_suffixes ⇒ Object

Suffixes for dynamic library require-able paths.



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# File 'lib/rubygems.rb', line 1041

def self.dynamic_library_suffixes
  @dynamic_library_suffixes ||= suffixes - [".rb"]
end

.ensure_default_gem_subdirectories(dir = Gem.dir, mode = nil) ⇒ Object

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.



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# File 'lib/rubygems.rb', line 474

def self.ensure_default_gem_subdirectories(dir = Gem.dir, mode = nil)
  ensure_subdirectories(dir, mode, REPOSITORY_DEFAULT_GEM_SUBDIRECTORIES)
end

.ensure_gem_subdirectories(dir = Gem.dir, mode = nil) ⇒ Object

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.



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# File 'lib/rubygems.rb', line 461

def self.ensure_gem_subdirectories(dir = Gem.dir, mode = nil)
  ensure_subdirectories(dir, mode, REPOSITORY_SUBDIRECTORIES)
end

.ensure_subdirectories(dir, mode, subdirs) ⇒ Object

:nodoc:



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# File 'lib/rubygems.rb', line 478

def self.ensure_subdirectories(dir, mode, subdirs) # :nodoc:
  old_umask = File.umask
  File.umask old_umask | 0o002

  options = {}

  options[:mode] = mode if mode

  subdirs.each do |name|
    subdir = File.join dir, name
    next if File.exist? subdir

    require "fileutils"

    begin
      FileUtils.mkdir_p subdir, **options
    rescue SystemCallError
    end
  end
ensure
  File.umask old_umask
end

.env_requirement(gem_name) ⇒ Object 



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# File 'lib/rubygems.rb', line 909

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"
    Gem::Requirement.create(req)
  end
end

.extension_api_version ⇒ Object

The extension API version of ruby. This includes the static vs non-static distinction as extensions cannot be shared between the two.



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# File 'lib/rubygems.rb', line 505

def self.extension_api_version # :nodoc:
  if target_rbconfig["ENABLE_SHARED"] == "no"
    "#{ruby_api_version}-static"
  else
    ruby_api_version
  end
end

.find_config_file ⇒ Object

Finds the user’s config file



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# File 'lib/rubygems/defaults.rb', line 121

def self.find_config_file
  gemrc = File.join Gem.user_home, ".gemrc"
  if File.exist? gemrc
    gemrc
  else
    File.join Gem.config_home, "gem", "gemrc"
  end
end

.find_default_spec(path) ⇒ Object

Find a Gem::Specification of default gem from path



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# File 'lib/rubygems.rb', line 1303

def find_default_spec(path)
  @path_to_default_spec_map[path]
end

.find_files(glob, check_load_path = true) ⇒ Object

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



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# File 'lib/rubygems.rb', line 525

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

  # $LOAD_PATH might contain duplicate entries or reference
  # the spec dirs directly, so we prune.
  files.uniq! if check_load_path

  files
end

.find_files_from_load_path(glob) ⇒ Object

:nodoc:



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# File 'lib/rubygems.rb', line 543

def self.find_files_from_load_path(glob) # :nodoc:
  glob_with_suffixes = "#{glob}#{Gem.suffix_pattern}"
  $LOAD_PATH.flat_map do |load_path|
    Gem::Util.glob_files_in_dir(glob_with_suffixes, load_path)
  end.select {|file| File.file? file }
end

.find_latest_files(glob, check_load_path = true) ⇒ Object

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.



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# File 'lib/rubygems.rb', line 562

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

  # $LOAD_PATH might contain duplicate entries or reference
  # the spec dirs directly, so we prune.
  files.uniq! if check_load_path

  files
end

.find_unresolved_default_spec(path) ⇒ Object

Find an unresolved Gem::Specification of default gem from path



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# File 'lib/rubygems.rb', line 1310

def find_unresolved_default_spec(path)
  default_spec = @path_to_default_spec_map[path]
  default_spec if default_spec && loaded_specs[default_spec.name] != default_spec
end

.finish_resolve(request_set = Gem::RequestSet.new) ⇒ Object 



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# File 'lib/rubygems.rb', line 215

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

.freebsd_platform? ⇒ Boolean

Is this platform FreeBSD

Returns:

  • (Boolean) 


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# File 'lib/rubygems.rb', line 1099

def self.freebsd_platform?
  RbConfig::CONFIG["host_os"].to_s.include?("bsd")
end

.host ⇒ Object

Get the default RubyGems API host. This is normally https://rubygems.org.



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# File 'lib/rubygems.rb', line 597

def self.host
  @host ||= Gem::DEFAULT_HOST
end

.host=(host) ⇒ Object

Set the default RubyGems API host.



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# File 'lib/rubygems.rb', line 603

def self.host=(host)
  @host = host
end

.install(name, version = Gem::Requirement.default, *options) ⇒ Object

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", ...>]



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# File 'lib/rubygems.rb', line 586

def self.install(name, version = Gem::Requirement.default, *options)
  require_relative "rubygems/dependency_installer"
  inst = Gem::DependencyInstaller.new(*options)
  inst.install name, version
  inst.installed_gems
end

.install_extension_in_lib ⇒ Object

Install extensions into lib as well as into the extension directory.



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# File 'lib/rubygems/defaults.rb', line 253

def self.install_extension_in_lib # :nodoc:
  Gem.configuration.install_extension_in_lib
end

.java_platform? ⇒ Boolean

Is this a java platform?

Returns:

  • (Boolean) 


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# File 'lib/rubygems.rb', line 1085

def self.java_platform?
  RUBY_PLATFORM == "java"
end

.latest_rubygems_version ⇒ Object

Returns the latest release version of RubyGems.



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# File 'lib/rubygems.rb', line 934

def self.latest_rubygems_version
  latest_version_for("rubygems-update") ||
    raise("Can't find 'rubygems-update' in any repo. Check `gem source list`.")
end

.latest_spec_for(name) ⇒ Object

Returns the latest release-version specification for the gem name.



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# File 'lib/rubygems.rb', line 921

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.last

  spec
end

.latest_version_for(name) ⇒ Object

Returns the version of the latest release-version of gem name



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# File 'lib/rubygems.rb', line 942

def self.latest_version_for(name)
  latest_spec_for(name)&.version
end

.load_bundler_extensions(version) ⇒ Object

Load Bundler extensions to RubyGems, making sure to avoid redefinition warnings in platform constants



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# File 'lib/rubygems.rb', line 669

def self.load_bundler_extensions(version)
  return unless version <= Gem::Version.create("2.6.9")

  previous_platforms = {}

  platform_const_list = ["JAVA", "MSWIN", "MSWIN64", "MINGW", "X64_MINGW_LEGACY", "X64_MINGW", "UNIVERSAL_MINGW", "WINDOWS", "X64_LINUX", "X64_LINUX_MUSL"]

  platform_const_list.each do |platform|
    previous_platforms[platform] = Gem::Platform.const_get(platform)
    Gem::Platform.send(:remove_const, platform)
  end

  require "bundler/rubygems_ext"

  platform_const_list.each do |platform|
    Gem::Platform.send(:remove_const, platform) if Gem::Platform.const_defined?(platform)
    Gem::Platform.const_set(platform, previous_platforms[platform])
  end
end

.load_env_plugins ⇒ Object

Find all ‘rubygems_plugin’ files in $LOAD_PATH and load them



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# File 'lib/rubygems.rb', line 1134

def self.load_env_plugins
  load_plugin_files find_files_from_load_path("rubygems_plugin")
end

.load_path_insert_index ⇒ Object

The index to insert activated gem paths into the $LOAD_PATH. The activated gem’s paths are inserted before site lib directory by default.



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# File 'lib/rubygems.rb', line 611

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

  index = $LOAD_PATH.index RbConfig::CONFIG["sitelibdir"]

  index || 0
end

.load_plugin_files(plugins) ⇒ Object

Load plugins as Ruby files



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# File 'lib/rubygems.rb', line 1106

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 /gemcutter-0\.[0-3]/.match?(plugin)

    begin
      load plugin
    rescue ScriptError, StandardError => e
      details = "#{plugin.inspect}: #{e.message} (#{e.class})"
      warn "Error loading RubyGems plugin #{details}"
    end
  end
end

.load_plugins ⇒ Object

Find rubygems plugin files in the standard location and load them



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# File 'lib/rubygems.rb', line 1125

def self.load_plugins
  Gem.path.each do |gem_path|
    load_plugin_files Gem::Util.glob_files_in_dir("*#{Gem.plugin_suffix_pattern}", plugindir(gem_path))
  end
end

.load_safe_marshal ⇒ Object 



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# File 'lib/rubygems.rb', line 657

def self.load_safe_marshal
  return if @safe_marshal_loaded

  require_relative "rubygems/safe_marshal"

  @safe_marshal_loaded = true
end

.load_yaml ⇒ Object

Loads YAML, preferring Psych



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# File 'lib/rubygems.rb', line 644

def self.load_yaml
  return if @yaml_loaded

  require "psych"
  require_relative "rubygems/psych_tree"

  require_relative "rubygems/safe_yaml"

  @yaml_loaded = true
end

.location_of_caller(depth = 1) ⇒ Object

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)



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# File 'lib/rubygems.rb', line 703

def self.location_of_caller(depth = 1)
  caller[depth] =~ /(.*?):(\d+).*?$/i
  file = $1
  lineno = $2.to_i

  [file, lineno]
end

.marshal_version ⇒ Object

The version of the Marshal format for your Ruby.



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# File 'lib/rubygems.rb', line 714

def self.marshal_version
  "#{Marshal::MAJOR_VERSION}.#{Marshal::MINOR_VERSION}"
end

.needs {|rs| ... } ⇒ Object

Yields:

  • (rs) 


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# File 'lib/rubygems.rb', line 207

def self.needs
  rs = Gem::RequestSet.new

  yield rs

  finish_resolve rs
end

.open_file(path, flags, &block) ⇒ Object

Open a file with given flags



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# File 'lib/rubygems.rb', line 850

def self.open_file(path, flags, &block)
  File.open(path, flags, &block)
end

.open_file_with_flock(path, &block) ⇒ Object

Open a file with given flags, and protect access with flock



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# File 'lib/rubygems.rb', line 868

def self.open_file_with_flock(path, &block)
  # read-write mode is used rather than read-only in order to support NFS
  mode = IO::RDWR | IO::APPEND | IO::CREAT | IO::BINARY
  mode |= IO::SHARE_DELETE if IO.const_defined?(:SHARE_DELETE)

  File.open(path, mode) do |io|
    begin
      # Try to get a lock without blocking.
      # If we do, the file is locked.
      # Otherwise, explain why we're waiting and get a lock, but block this time.
      if io.flock(File::LOCK_EX | File::LOCK_NB) != 0
        warn "Waiting for another process to let go of lock: #{path}"
        io.flock(File::LOCK_EX)
      end
      io.puts(Process.pid)
    rescue Errno::ENOSYS, Errno::ENOTSUP
    end
    yield io
  end
end

.open_file_with_lock(path, &block) ⇒ Object

Open a file with given flags, and protect access with a file lock



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# File 'lib/rubygems.rb', line 857

def self.open_file_with_lock(path, &block)
  file_lock = "#{path}.lock"
  open_file_with_flock(file_lock, &block)
ensure
  require "fileutils"
  FileUtils.rm_f file_lock
end

.operating_system_defaults ⇒ Object

Default options for gem commands for Ruby packagers.

The options here should be structured as an array of string “gem” command names as keys and a string of the default options as values.

Example:

def self.operating_system_defaults

{
    'install' => '--no-rdoc --no-ri --env-shebang',
    'update' => '--no-rdoc --no-ri --env-shebang'
}

end



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# File 'lib/rubygems/defaults.rb', line 286

def self.operating_system_defaults
  {}
end

.path ⇒ Object 



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# File 'lib/rubygems.rb', line 427

def self.path
  paths.path
end

.path_separator ⇒ Object

How String Gem paths should be split. Overridable for esoteric platforms.



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# File 'lib/rubygems/defaults.rb', line 168

def self.path_separator
  File::PATH_SEPARATOR
end

.paths ⇒ Object

Retrieve the PathSupport object that RubyGems uses to lookup files.



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# File 'lib/rubygems.rb', line 383

def self.paths
  @paths ||= Gem::PathSupport.new(ENV)
end

.paths=(env) ⇒ Object

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.



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# File 'lib/rubygems.rb', line 393

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

.platform_defaults ⇒ Object

Default options for gem commands for Ruby implementers.

The options here should be structured as an array of string “gem” command names as keys and a string of the default options as values.

Example:

def self.platform_defaults

{
    'install' => '--no-rdoc --no-ri --env-shebang',
    'update' => '--no-rdoc --no-ri --env-shebang'
}

end



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# File 'lib/rubygems/defaults.rb', line 305

def self.platform_defaults
  {}
end

.platforms ⇒ Object

Array of platforms this RubyGems supports.



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# File 'lib/rubygems.rb', line 728

def self.platforms
  @platforms ||= []
  if @platforms.empty?
    @platforms = [Gem::Platform::RUBY, Gem::Platform.local]
  end
  @platforms
end

.platforms=(platforms) ⇒ Object

Set array of platforms this RubyGems supports (primarily for testing).



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# File 'lib/rubygems.rb', line 721

def self.platforms=(platforms)
  @platforms = platforms
end

.plugin_suffix_pattern ⇒ Object

Glob pattern for require-able plugin suffixes.



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# File 'lib/rubygems.rb', line 1014

def self.plugin_suffix_pattern
  @plugin_suffix_pattern ||= "_plugin#{suffix_pattern}"
end

.plugin_suffix_regexp ⇒ Object

Regexp for require-able plugin suffixes.



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# File 'lib/rubygems.rb', line 1021

def self.plugin_suffix_regexp
  @plugin_suffix_regexp ||= /_plugin#{suffix_regexp}\z/
end

.plugindir(install_dir = Gem.dir) ⇒ Object

The path were rubygems plugins are to be installed.



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# File 'lib/rubygems.rb', line 341

def self.plugindir(install_dir = Gem.dir)
  File.join install_dir, "plugins"
end

.post_build(&hook) ⇒ Object

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.



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# File 'lib/rubygems.rb', line 743

def self.post_build(&hook)
  @post_build_hooks << hook
end

.post_install(&hook) ⇒ Object

Adds a post-install hook that will be passed an Gem::Installer instance when Gem::Installer#install is called



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# File 'lib/rubygems.rb', line 751

def self.post_install(&hook)
  @post_install_hooks << hook
end

.post_reset(&hook) ⇒ Object

Adds a hook that will get run after Gem::Specification.reset is run.



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# File 'lib/rubygems.rb', line 768

def self.post_reset(&hook)
  @post_reset_hooks << hook
end

.post_uninstall(&hook) ⇒ Object

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



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# File 'lib/rubygems.rb', line 777

def self.post_uninstall(&hook)
  @post_uninstall_hooks << hook
end

.pre_install(&hook) ⇒ Object

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.



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# File 'lib/rubygems.rb', line 786

def self.pre_install(&hook)
  @pre_install_hooks << hook
end

.pre_reset(&hook) ⇒ Object

Adds a hook that will get run before Gem::Specification.reset is run.



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# File 'lib/rubygems.rb', line 794

def self.pre_reset(&hook)
  @pre_reset_hooks << hook
end

.pre_uninstall(&hook) ⇒ Object

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



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# File 'lib/rubygems.rb', line 803

def self.pre_uninstall(&hook)
  @pre_uninstall_hooks << hook
end

.prefix ⇒ Object

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.



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# File 'lib/rubygems.rb', line 812

def self.prefix
  prefix = File.dirname RUBYGEMS_DIR

  if prefix != File.expand_path(RbConfig::CONFIG["sitelibdir"]) &&
     prefix != File.expand_path(RbConfig::CONFIG["libdir"]) &&
     File.basename(RUBYGEMS_DIR) == "lib"
    prefix
  end
end

.read_binary(path) ⇒ Object

Safely read a file in binary mode on all platforms.



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# File 'lib/rubygems.rb', line 832

def self.read_binary(path)
  File.binread(path)
end

.refresh ⇒ Object

Refresh available gems from disk.



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# File 'lib/rubygems.rb', line 825

def self.refresh
  Gem::Specification.reset
end

.register_default_spec(spec) ⇒ Object

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.



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# File 'lib/rubygems.rb', line 1278

def register_default_spec(spec)
  extended_require_paths = spec.require_paths.map {|f| f + "/" }
  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

.ruby ⇒ Object

The path to the running Ruby interpreter.



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# File 'lib/rubygems.rb', line 892

def self.ruby
  if @ruby.nil?
    @ruby = RbConfig.ruby

    @ruby = "\"#{@ruby}\"" if /\s/.match?(@ruby)
  end

  @ruby
end

.ruby_api_version ⇒ Object

Returns a String containing the API compatibility version of Ruby



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# File 'lib/rubygems.rb', line 905

def self.ruby_api_version
  @ruby_api_version ||= target_rbconfig["ruby_version"].dup
end

.ruby_engine ⇒ Object 



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# File 'lib/rubygems/defaults.rb', line 208

def self.ruby_engine
  RUBY_ENGINE
end

.ruby_version ⇒ Object

A Gem::Version for the currently running Ruby.



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# File 'lib/rubygems.rb', line 949

def self.ruby_version
  return @ruby_version if defined? @ruby_version
  version = RUBY_VERSION.dup

  if RUBY_PATCHLEVEL == -1
    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

.rubygems_version ⇒ Object

A Gem::Version for the currently running RubyGems



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# File 'lib/rubygems.rb', line 968

def self.rubygems_version
  return @rubygems_version if defined? @rubygems_version
  @rubygems_version = Gem::Version.new Gem::VERSION
end

.set_target_rbconfig(rbconfig_path) ⇒ Object 



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# File 'lib/rubygems.rb', line 445

def self.set_target_rbconfig(rbconfig_path)
  @target_rbconfig = Gem::TargetRbConfig.from_path(rbconfig_path)
  Gem::Platform.local(refresh: true)
  Gem.platforms << Gem::Platform.local unless Gem.platforms.include? Gem::Platform.local
  @target_rbconfig
end

.solaris_platform? ⇒ Boolean

Is this platform Solaris?

Returns:

  • (Boolean) 


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# File 'lib/rubygems.rb', line 1092

def self.solaris_platform?
  RUBY_PLATFORM.include?("solaris")
end

.source_date_epoch ⇒ Object

Returns the value of Gem.source_date_epoch_string, as a Time object.

This is used throughout RubyGems for enabling reproducible builds.



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# File 'lib/rubygems.rb', line 1233

def self.source_date_epoch
  Time.at(source_date_epoch_string.to_i).utc.freeze
end

.source_date_epoch_string ⇒ Object

If the SOURCE_DATE_EPOCH environment variable is set, returns it’s value. Otherwise, returns DEFAULT_SOURCE_DATE_EPOCH as a string.

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: reproducible-builds.org/specs/source-date-epoch/



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# File 'lib/rubygems.rb', line 1217

def self.source_date_epoch_string
  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.to_s

  epoch.strip
end

.sources ⇒ Object

Returns an Array of sources to fetch remote gems from. Uses default_sources if the sources list is empty.



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# File 'lib/rubygems.rb', line 977

def self.sources
  source_list = configuration.sources || default_sources
  @sources ||= Gem::SourceList.from(source_list)
end

.sources=(new_sources) ⇒ Object

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.



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# File 'lib/rubygems.rb', line 989

def self.sources=(new_sources)
  if !new_sources
    @sources = nil
  else
    @sources = Gem::SourceList.from(new_sources)
  end
end

.spec_cache_dir ⇒ Object 



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# File 'lib/rubygems.rb', line 431

def self.spec_cache_dir
  paths.spec_cache_dir
end

.state_file ⇒ Object

The path to standard location of the user’s state file.



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# File 'lib/rubygems/defaults.rb', line 140

def self.state_file
  @state_file ||= File.join(Gem.state_home, "gem", "last_update_check")
end

.state_home ⇒ Object

The path to standard location of the user’s state directory.



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# File 'lib/rubygems/defaults.rb', line 161

def self.state_home
  @state_home ||= ENV["XDG_STATE_HOME"] || File.join(Gem.user_home, ".local", "state")
end

.suffix_pattern ⇒ Object

Glob pattern for require-able path suffixes.



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# File 'lib/rubygems.rb', line 1000

def self.suffix_pattern
  @suffix_pattern ||= "{#{suffixes.join(",")}}"
end

.suffix_regexp ⇒ Object

Regexp for require-able path suffixes.



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# File 'lib/rubygems.rb', line 1007

def self.suffix_regexp
  @suffix_regexp ||= /#{Regexp.union(suffixes)}\z/
end

.suffixes ⇒ Object

Suffixes for require-able paths.



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# File 'lib/rubygems.rb', line 1028

def self.suffixes
  @suffixes ||= ["",
                 ".rb",
                 *%w[DLEXT DLEXT2].map do |key|
                   val = RbConfig::CONFIG[key]
                   next unless val && !val.empty?
                   ".#{val}"
                 end].compact.uniq
end

.target_rbconfig ⇒ Object

The RbConfig object for the deployment target platform.

This is usually the same as the running platform, but may be different if you are cross-compiling.



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# File 'lib/rubygems.rb', line 441

def self.target_rbconfig
  @target_rbconfig || Gem::TargetRbConfig.for_running_ruby
end

.time(msg, width = 0, display = Gem.configuration.verbose) ⇒ Object

Prints the amount of time the supplied block takes to run using the debug UI output.



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# File 'lib/rubygems.rb', line 1049

def self.time(msg, width = 0, display = Gem.configuration.verbose)
  now = Time.now

  value = yield

  elapsed = Time.now - now

  ui.say format("%2$*1$s: %3$3.3fs", -width, msg, elapsed) if display

  value
end

.try_activate(path) ⇒ Object

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.



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# File 'lib/rubygems.rb', line 181

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 = Gem::Specification.find_unloaded_by_path(path)
    spec ||= Gem::Specification.find_by_name(spec.name)
    if spec.nil?
      raise e
    else
      spec.activate
    end
  end

  true
end

.ui ⇒ Object

Lazily loads DefaultUserInteraction and returns the default UI.



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# File 'lib/rubygems.rb', line 1064

def self.ui
  require_relative "rubygems/user_interaction"

  Gem::DefaultUserInteraction.ui
end

.URI(uri) ⇒ Object

Returns a Gem::URI object derived from the given uri, which may be a Gem::URI string or an existing Gem::URI object:

require 'rubygems/vendor/uri/lib/uri'
# Returns a new Gem::URI.
uri = Gem::URI('http://github.com/ruby/ruby')
# => #<Gem::URI::HTTP http://github.com/ruby/ruby>
# Returns the given Gem::URI.
Gem::URI(uri)
# => #<Gem::URI::HTTP http://github.com/ruby/ruby>

You must require ‘rubygems/vendor/uri/lib/uri’ to use this method.



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# File 'lib/rubygems/vendor/uri/lib/uri/common.rb', line 911

def URI(uri)
  if uri.is_a?(Gem::URI::Generic)
    uri
  elsif uri = String.try_convert(uri)
    Gem::URI.parse(uri)
  else
    raise ArgumentError,
      "bad argument (expected Gem::URI object or Gem::URI string)"
  end
end

.use_gemdeps(path = nil) ⇒ Object

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 RUBYGEMS_GEMDEPS 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.



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# File 'lib/rubygems.rb', line 1158

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

  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_relative "rubygems/user_interaction"
  require "bundler"
  begin
    Gem::DefaultUserInteraction.use_ui(ui) do
      Bundler.ui.silence do
        @gemdeps = Bundler.setup
      end
    ensure
      Gem::DefaultUserInteraction.ui.close
    end
  rescue Bundler::BundlerError => e
    warn e.message
    warn "You may need to `bundle install` to install missing gems"
    warn ""
  end
end

.use_paths(home, *paths) ⇒ Object

Use the home and paths values for Gem.dir and Gem.path. Used mainly by the unit tests to provide environment isolation.



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# File 'lib/rubygems.rb', line 1074

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

.user_dir ⇒ Object

Path for gems in the user’s home directory



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# File 'lib/rubygems/defaults.rb', line 103

def self.user_dir
  gem_dir = File.join(Gem.user_home, ".gem")
  gem_dir = File.join(Gem.data_home, "gem") unless File.exist?(gem_dir)
  parts = [gem_dir, ruby_engine]
  parts << RbConfig::CONFIG["ruby_version"] unless RbConfig::CONFIG["ruby_version"].empty?
  File.join parts
end

.user_home ⇒ Object

The home directory for the user.



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# File 'lib/rubygems/defaults.rb', line 96

def self.user_home
  @user_home ||= find_home
end

.vendor_dir ⇒ Object

Directory where vendor gems are installed.



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# File 'lib/rubygems/defaults.rb', line 260

def self.vendor_dir # :nodoc:
  if vendor_dir = ENV["GEM_VENDOR"]
    return vendor_dir.dup
  end

  return nil unless RbConfig::CONFIG.key? "vendordir"

  File.join RbConfig::CONFIG["vendordir"], "gems",
            RbConfig::CONFIG["ruby_version"]
end

.win_platform? ⇒ Boolean

Is this a windows platform?

Returns:

  • (Boolean) 


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# File 'lib/rubygems/win_platform.rb', line 23

def self.win_platform?
  if @@win_platform.nil?
    ruby_platform = RbConfig::CONFIG["host_os"]
    @@win_platform = !WIN_PATTERNS.find {|r| ruby_platform =~ r }.nil?
  end

  @@win_platform
end

.write_binary(path, data) ⇒ Object

Safely write a file in binary mode on all platforms.



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# File 'lib/rubygems.rb', line 839

def self.write_binary(path, data)
  File.binwrite(path, data)
rescue Errno::ENOSPC
  # If we ran out of space but the file exists, it's *guaranteed* to be corrupted.
  File.delete(path) if File.exist?(path)
  raise
end