Module: Gem

Defined in:
lib/rubygems.rb,
lib/rubygems.rb,
lib/rubygems/errors.rb,
lib/rubygems/openssl.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/compatibility.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 = 
"3.7.1"
RUBYGEMS_DIR = 
__dir__
WIN_PATTERNS =

An Array of Regexps that match windows Ruby platforms.

[
  /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
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"
RubyGemsVersion =

:stopdoc:

VERSION
RbConfigPriorities = 
%w[
  MAJOR
  MINOR
  TEENY
  EXEEXT RUBY_SO_NAME arch bindir datadir libdir ruby_install_name
  ruby_version rubylibprefix sitedir sitelibdir vendordir vendorlibdir
  rubylibdir
].freeze
ConfigMap =

Configuration settings from ::RbConfig

Hash.new do |cm, key|
  cm[key] = RbConfig::CONFIG[key.to_s]
end
@@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.



1273
1274
1275
 
# File 'lib/rubygems.rb', line 1273

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`.



1280
1281
1282
 
# File 'lib/rubygems.rb', line 1280

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



1365
1366
1367
 
# File 'lib/rubygems.rb', line 1365

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.



1291
1292
1293
 
# File 'lib/rubygems.rb', line 1291

def gemdeps
  @gemdeps
end

.loaded_specs ⇒ Object (readonly)

Hash of loaded Gem::Specification keyed by name



1285
1286
1287
 
# File 'lib/rubygems.rb', line 1285

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



1353
1354
1355
 
# File 'lib/rubygems.rb', line 1353

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



1359
1360
1361
 
# File 'lib/rubygems.rb', line 1359

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.



1370
1371
1372
 
# File 'lib/rubygems.rb', line 1370

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



1376
1377
1378
 
# File 'lib/rubygems.rb', line 1376

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



1381
1382
1383
 
# File 'lib/rubygems.rb', line 1381

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.



1386
1387
1388
 
# File 'lib/rubygems.rb', line 1386

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



1392
1393
1394
 
# File 'lib/rubygems.rb', line 1392

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.



297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
 
# File 'lib/rubygems.rb', line 297

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 <= "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.



333
334
335
 
# File 'lib/rubygems.rb', line 333

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.



640
641
642
 
# File 'lib/rubygems.rb', line 640

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.



647
648
649
650
651
652
 
# File 'lib/rubygems.rb', line 647

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.



245
246
247
248
249
250
 
# File 'lib/rubygems.rb', line 245

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.



340
341
342
 
# File 'lib/rubygems.rb', line 340

def self.binary_mode
  "rb"
end

.bindir(install_dir = Gem.dir) ⇒ Object

The path where gem executables are to be installed.



347
348
349
350
351
 
# File 'lib/rubygems.rb', line 347

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.



147
148
149
 
# 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



1345
1346
1347
 
# File 'lib/rubygems.rb', line 1345

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.



365
366
367
368
369
370
 
# File 'lib/rubygems.rb', line 365

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.



133
134
135
 
# 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.



114
115
116
 
# 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.



375
376
377
 
# File 'lib/rubygems.rb', line 375

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.



383
384
385
 
# File 'lib/rubygems.rb', line 383

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

.data_home ⇒ Object

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



154
155
156
 
# 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



204
205
206
 
# 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



228
229
230
231
232
233
234
235
236
 
# 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



37
38
39
 
# 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



186
187
188
189
190
191
192
193
194
195
196
197
198
199
 
# 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



48
49
50
 
# 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



215
216
217
218
219
220
221
222
223
 
# 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



175
176
177
178
179
180
181
 
# 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



55
56
57
 
# 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



15
16
17
 
# File 'lib/rubygems/defaults.rb', line 15

def self.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



23
24
25
26
27
28
29
30
31
 
# 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.



62
63
64
 
# 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



241
242
243
244
245
246
247
248
 
# 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



390
391
392
393
 
# File 'lib/rubygems.rb', line 390

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

.dir ⇒ Object

The path where gems are to be installed.



438
439
440
 
# File 'lib/rubygems.rb', line 438

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



775
776
777
 
# File 'lib/rubygems.rb', line 775

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

.dynamic_library_suffixes ⇒ Object

Suffixes for dynamic library require-able paths.



1056
1057
1058
 
# File 'lib/rubygems.rb', line 1056

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.



489
490
491
 
# File 'lib/rubygems.rb', line 489

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.



476
477
478
 
# File 'lib/rubygems.rb', line 476

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

.ensure_subdirectories(dir, mode, subdirs) ⇒ Object

:nodoc:



493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
 
# File 'lib/rubygems.rb', line 493

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 



924
925
926
927
928
929
930
 
# File 'lib/rubygems.rb', line 924

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.



520
521
522
523
524
525
526
 
# File 'lib/rubygems.rb', line 520

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



121
122
123
124
125
126
127
128
 
# 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



1330
1331
1332
 
# File 'lib/rubygems.rb', line 1330

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



540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
 
# File 'lib/rubygems.rb', line 540

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:



558
559
560
561
562
563
 
# File 'lib/rubygems.rb', line 558

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.



577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
 
# File 'lib/rubygems.rb', line 577

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



1337
1338
1339
1340
 
# File 'lib/rubygems.rb', line 1337

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 



230
231
232
233
234
235
236
237
 
# File 'lib/rubygems.rb', line 230

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) 


1126
1127
1128
 
# File 'lib/rubygems.rb', line 1126

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.



612
613
614
 
# File 'lib/rubygems.rb', line 612

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

.host=(host) ⇒ Object

Set the default RubyGems API host.



618
619
620
 
# File 'lib/rubygems.rb', line 618

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", ...>]



601
602
603
604
605
606
 
# File 'lib/rubygems.rb', line 601

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.



253
254
255
 
# 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) 


1112
1113
1114
 
# File 'lib/rubygems.rb', line 1112

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

.latest_rubygems_version ⇒ Object

Returns the latest release version of RubyGems.



949
950
951
952
 
# File 'lib/rubygems.rb', line 949

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.



936
937
938
939
940
941
942
943
944
 
# File 'lib/rubygems.rb', line 936

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



957
958
959
 
# File 'lib/rubygems.rb', line 957

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



684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
 
# File 'lib/rubygems.rb', line 684

def self.load_bundler_extensions(version)
  return unless version <= "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



1161
1162
1163
 
# File 'lib/rubygems.rb', line 1161

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.



626
627
628
629
630
631
632
633
634
 
# File 'lib/rubygems.rb', line 626

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



1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
 
# File 'lib/rubygems.rb', line 1133

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



1152
1153
1154
1155
1156
 
# File 'lib/rubygems.rb', line 1152

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 



672
673
674
675
676
677
678
 
# File 'lib/rubygems.rb', line 672

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



659
660
661
662
663
664
665
666
667
668
 
# File 'lib/rubygems.rb', line 659

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)



718
719
720
721
722
723
724
 
# File 'lib/rubygems.rb', line 718

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.



729
730
731
 
# File 'lib/rubygems.rb', line 729

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

.needs {|rs| ... } ⇒ Object

Yields:

  • (rs) 


222
223
224
225
226
227
228
 
# File 'lib/rubygems.rb', line 222

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



865
866
867
 
# File 'lib/rubygems.rb', line 865

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



883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
 
# File 'lib/rubygems.rb', line 883

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



872
873
874
875
876
877
878
 
# File 'lib/rubygems.rb', line 872

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



286
287
288
 
# File 'lib/rubygems/defaults.rb', line 286

def self.operating_system_defaults
  {}
end

.path ⇒ Object 



442
443
444
 
# File 'lib/rubygems.rb', line 442

def self.path
  paths.path
end

.path_separator ⇒ Object

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



168
169
170
 
# 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.



398
399
400
 
# File 'lib/rubygems.rb', line 398

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.



408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
 
# File 'lib/rubygems.rb', line 408

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



305
306
307
 
# File 'lib/rubygems/defaults.rb', line 305

def self.platform_defaults
  {}
end

.platforms ⇒ Object

Array of platforms this RubyGems supports.



743
744
745
746
747
748
749
 
# File 'lib/rubygems.rb', line 743

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).



736
737
738
 
# File 'lib/rubygems.rb', line 736

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

.plugin_suffix_pattern ⇒ Object

Glob pattern for require-able plugin suffixes.



1029
1030
1031
 
# File 'lib/rubygems.rb', line 1029

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

.plugin_suffix_regexp ⇒ Object

Regexp for require-able plugin suffixes.



1036
1037
1038
 
# File 'lib/rubygems.rb', line 1036

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.



356
357
358
 
# File 'lib/rubygems.rb', line 356

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.



758
759
760
 
# File 'lib/rubygems.rb', line 758

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



766
767
768
 
# File 'lib/rubygems.rb', line 766

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.



783
784
785
 
# File 'lib/rubygems.rb', line 783

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



792
793
794
 
# File 'lib/rubygems.rb', line 792

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.



801
802
803
 
# File 'lib/rubygems.rb', line 801

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.



809
810
811
 
# File 'lib/rubygems.rb', line 809

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



818
819
820
 
# File 'lib/rubygems.rb', line 818

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.



827
828
829
830
831
832
833
834
835
 
# File 'lib/rubygems.rb', line 827

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.



847
848
849
 
# File 'lib/rubygems.rb', line 847

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

.refresh ⇒ Object

Refresh available gems from disk.



840
841
842
 
# File 'lib/rubygems.rb', line 840

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.



1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
 
# File 'lib/rubygems.rb', line 1305

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.



907
908
909
910
911
912
913
914
915
 
# File 'lib/rubygems.rb', line 907

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



920
921
922
 
# File 'lib/rubygems.rb', line 920

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

.ruby_engine ⇒ Object 



208
209
210
 
# 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.



964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
 
# File 'lib/rubygems.rb', line 964

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



983
984
985
986
 
# File 'lib/rubygems.rb', line 983

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 



460
461
462
463
464
465
 
# File 'lib/rubygems.rb', line 460

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) 


1119
1120
1121
 
# File 'lib/rubygems.rb', line 1119

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.



1260
1261
1262
 
# File 'lib/rubygems.rb', line 1260

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/



1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
 
# File 'lib/rubygems.rb', line 1244

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.



992
993
994
995
 
# File 'lib/rubygems.rb', line 992

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.



1004
1005
1006
1007
1008
1009
1010
 
# File 'lib/rubygems.rb', line 1004

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

.spec_cache_dir ⇒ Object 



446
447
448
 
# File 'lib/rubygems.rb', line 446

def self.spec_cache_dir
  paths.spec_cache_dir
end

.state_file ⇒ Object

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



140
141
142
 
# 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.



161
162
163
 
# 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.



1015
1016
1017
 
# File 'lib/rubygems.rb', line 1015

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

.suffix_regexp ⇒ Object

Regexp for require-able path suffixes.



1022
1023
1024
 
# File 'lib/rubygems.rb', line 1022

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

.suffixes ⇒ Object

Suffixes for require-able paths.



1043
1044
1045
1046
1047
1048
1049
1050
1051
 
# File 'lib/rubygems.rb', line 1043

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.



456
457
458
 
# File 'lib/rubygems.rb', line 456

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.



1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
 
# File 'lib/rubygems.rb', line 1064

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.



197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
 
# File 'lib/rubygems.rb', line 197

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

  true
end

.ui ⇒ Object

Lazily loads DefaultUserInteraction and returns the default UI.



1079
1080
1081
1082
1083
 
# File 'lib/rubygems.rb', line 1079

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:

# 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>



869
870
871
872
873
874
875
876
877
878
 
# File 'lib/rubygems/vendor/uri/lib/uri/common.rb', line 869

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.



1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
 
# File 'lib/rubygems.rb', line 1185

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.



1089
1090
1091
1092
1093
1094
1095
 
# File 'lib/rubygems.rb', line 1089

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



103
104
105
106
107
108
109
 
# 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.



96
97
98
 
# 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.



260
261
262
263
264
265
266
267
268
269
 
# 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) 


1100
1101
1102
1103
1104
1105
1106
1107
 
# File 'lib/rubygems.rb', line 1100

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.



854
855
856
857
858
859
860
 
# File 'lib/rubygems.rb', line 854

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