In Files

  • rubygems.rb
  • rubygems/available_set.rb
  • rubygems/basic_specification.rb
  • rubygems/command.rb
  • rubygems/command_manager.rb
  • rubygems/commands/build_command.rb
  • rubygems/commands/cert_command.rb
  • rubygems/commands/check_command.rb
  • rubygems/commands/cleanup_command.rb
  • rubygems/commands/contents_command.rb
  • rubygems/commands/dependency_command.rb
  • rubygems/commands/environment_command.rb
  • rubygems/commands/fetch_command.rb
  • rubygems/commands/generate_index_command.rb
  • rubygems/commands/help_command.rb
  • rubygems/commands/install_command.rb
  • rubygems/commands/list_command.rb
  • rubygems/commands/lock_command.rb
  • rubygems/commands/mirror_command.rb
  • rubygems/commands/open_command.rb
  • rubygems/commands/outdated_command.rb
  • rubygems/commands/owner_command.rb
  • rubygems/commands/pristine_command.rb
  • rubygems/commands/push_command.rb
  • rubygems/commands/query_command.rb
  • rubygems/commands/rdoc_command.rb
  • rubygems/commands/search_command.rb
  • rubygems/commands/server_command.rb
  • rubygems/commands/setup_command.rb
  • rubygems/commands/sources_command.rb
  • rubygems/commands/specification_command.rb
  • rubygems/commands/stale_command.rb
  • rubygems/commands/uninstall_command.rb
  • rubygems/commands/unpack_command.rb
  • rubygems/commands/update_command.rb
  • rubygems/commands/which_command.rb
  • rubygems/commands/yank_command.rb
  • rubygems/compatibility.rb
  • rubygems/config_file.rb
  • rubygems/core_ext/kernel_gem.rb
  • rubygems/core_ext/kernel_require.rb
  • rubygems/defaults.rb
  • rubygems/dependency.rb
  • rubygems/dependency_installer.rb
  • rubygems/dependency_list.rb
  • rubygems/deprecate.rb
  • rubygems/doctor.rb
  • rubygems/errors.rb
  • rubygems/exceptions.rb
  • rubygems/ext.rb
  • rubygems/ext/build_error.rb
  • rubygems/ext/builder.rb
  • rubygems/ext/cmake_builder.rb
  • rubygems/ext/configure_builder.rb
  • rubygems/ext/ext_conf_builder.rb
  • rubygems/ext/rake_builder.rb
  • rubygems/gem_runner.rb
  • rubygems/gemcutter_utilities.rb
  • rubygems/indexer.rb
  • rubygems/install_default_message.rb
  • rubygems/install_message.rb
  • rubygems/install_update_options.rb
  • rubygems/installer.rb
  • rubygems/installer_test_case.rb
  • rubygems/local_remote_options.rb
  • rubygems/mock_gem_ui.rb
  • rubygems/name_tuple.rb
  • rubygems/package.rb
  • rubygems/package/digest_io.rb
  • rubygems/package/file_source.rb
  • rubygems/package/io_source.rb
  • rubygems/package/old.rb
  • rubygems/package/source.rb
  • rubygems/package/tar_header.rb
  • rubygems/package/tar_reader.rb
  • rubygems/package/tar_reader/entry.rb
  • rubygems/package/tar_test_case.rb
  • rubygems/package/tar_writer.rb
  • rubygems/package_task.rb
  • rubygems/path_support.rb
  • rubygems/platform.rb
  • rubygems/psych_tree.rb
  • rubygems/rdoc.rb
  • rubygems/remote_fetcher.rb
  • rubygems/request.rb
  • rubygems/request/connection_pools.rb
  • rubygems/request/http_pool.rb
  • rubygems/request/https_pool.rb
  • rubygems/request_set.rb
  • rubygems/request_set/gem_dependency_api.rb
  • rubygems/request_set/lockfile.rb
  • rubygems/request_set/lockfile/parser.rb
  • rubygems/request_set/lockfile/tokenizer.rb
  • rubygems/requirement.rb
  • rubygems/resolver.rb
  • rubygems/resolver/activation_request.rb
  • rubygems/resolver/api_set.rb
  • rubygems/resolver/api_specification.rb
  • rubygems/resolver/best_set.rb
  • rubygems/resolver/composed_set.rb
  • rubygems/resolver/conflict.rb
  • rubygems/resolver/current_set.rb
  • rubygems/resolver/dependency_request.rb
  • rubygems/resolver/git_set.rb
  • rubygems/resolver/git_specification.rb
  • rubygems/resolver/index_set.rb
  • rubygems/resolver/index_specification.rb
  • rubygems/resolver/installed_specification.rb
  • rubygems/resolver/installer_set.rb
  • rubygems/resolver/local_specification.rb
  • rubygems/resolver/lock_set.rb
  • rubygems/resolver/lock_specification.rb
  • rubygems/resolver/molinillo/lib/molinillo.rb
  • rubygems/resolver/molinillo/lib/molinillo/delegates/resolution_state.rb
  • rubygems/resolver/molinillo/lib/molinillo/delegates/specification_provider.rb
  • rubygems/resolver/molinillo/lib/molinillo/dependency_graph.rb
  • rubygems/resolver/molinillo/lib/molinillo/dependency_graph/action.rb
  • rubygems/resolver/molinillo/lib/molinillo/dependency_graph/add_edge_no_circular.rb
  • rubygems/resolver/molinillo/lib/molinillo/dependency_graph/add_vertex.rb
  • rubygems/resolver/molinillo/lib/molinillo/dependency_graph/delete_edge.rb
  • rubygems/resolver/molinillo/lib/molinillo/dependency_graph/detach_vertex_named.rb
  • rubygems/resolver/molinillo/lib/molinillo/dependency_graph/log.rb
  • rubygems/resolver/molinillo/lib/molinillo/dependency_graph/set_payload.rb
  • rubygems/resolver/molinillo/lib/molinillo/dependency_graph/tag.rb
  • rubygems/resolver/molinillo/lib/molinillo/dependency_graph/vertex.rb
  • rubygems/resolver/molinillo/lib/molinillo/errors.rb
  • rubygems/resolver/molinillo/lib/molinillo/gem_metadata.rb
  • rubygems/resolver/molinillo/lib/molinillo/modules/specification_provider.rb
  • rubygems/resolver/molinillo/lib/molinillo/modules/ui.rb
  • rubygems/resolver/molinillo/lib/molinillo/resolution.rb
  • rubygems/resolver/molinillo/lib/molinillo/resolver.rb
  • rubygems/resolver/molinillo/lib/molinillo/state.rb
  • rubygems/resolver/requirement_list.rb
  • rubygems/resolver/set.rb
  • rubygems/resolver/source_set.rb
  • rubygems/resolver/spec_specification.rb
  • rubygems/resolver/specification.rb
  • rubygems/resolver/stats.rb
  • rubygems/resolver/vendor_set.rb
  • rubygems/resolver/vendor_specification.rb
  • rubygems/security.rb
  • rubygems/security/policies.rb
  • rubygems/security/policy.rb
  • rubygems/security/signer.rb
  • rubygems/security/trust_dir.rb
  • rubygems/server.rb
  • rubygems/source.rb
  • rubygems/source/git.rb
  • rubygems/source/installed.rb
  • rubygems/source/local.rb
  • rubygems/source/lock.rb
  • rubygems/source/specific_file.rb
  • rubygems/source/vendor.rb
  • rubygems/source_list.rb
  • rubygems/spec_fetcher.rb
  • rubygems/specification.rb
  • rubygems/stub_specification.rb
  • rubygems/syck_hack.rb
  • rubygems/test_case.rb
  • rubygems/test_utilities.rb
  • rubygems/text.rb
  • rubygems/uninstaller.rb
  • rubygems/uri_formatter.rb
  • rubygems/user_interaction.rb
  • rubygems/util.rb
  • rubygems/util/licenses.rb
  • rubygems/util/list.rb
  • rubygems/validator.rb
  • rubygems/version.rb
  • rubygems/version_option.rb

Namespace

Class/Module Index [+]

Quicksearch

Gem

RubyGems is the Ruby standard for publishing and managing third party libraries.

For user documentation, see:

For gem developer documentation see:

Further RubyGems documentation can be found at:

RubyGems Plugins

As of RubyGems 1.3.2, RubyGems will load plugins installed in gems or $LOAD_PATH. Plugins must be named ‘rubygems_plugin’ (.rb, .so, etc) and placed at the root of your gem’s require_path. Plugins are discovered via ::find_files then loaded. Take care when implementing a plugin as your plugin file may be loaded multiple times if multiple versions of your gem are installed.

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

RubyGems Defaults, Packaging

RubyGems defaults are stored in rubygems/defaults.rb. If you’re packaging RubyGems or implementing Ruby you can change RubyGems’ defaults.

For RubyGems packagers, provide lib/rubygems/defaults/operating_system.rb and override any defaults from lib/rubygems/defaults.rb.

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

If you need RubyGems to perform extra work on install or uninstall, your defaults override file can set pre and post install and uninstall hooks. See ::pre_install, ::pre_uninstall, ::post_install, ::post_uninstall.

Bugs

You can submit bugs to the RubyGems bug tracker on GitHub

Credits

RubyGems is currently maintained by Eric Hodel.

RubyGems was originally developed at RubyConf 2003 by:

  • Rich Kilmer – rich(at)infoether.com

  • Chad Fowler – chad(at)chadfowler.com

  • David Black – dblack(at)wobblini.net

  • Paul Brannan – paul(at)atdesk.com

  • Jim Weirich – jim(at)weirichhouse.org

Contributors:

  • Gavin Sinclair – gsinclair(at)soyabean.com.au

  • George Marrows – george.marrows(at)ntlworld.com

  • Dick Davies – rasputnik(at)hellooperator.net

  • Mauricio Fernandez – batsman.geo(at)yahoo.com

  • Simon Strandgaard – neoneye(at)adslhome.dk

  • Dave Glasser – glasser(at)mit.edu

  • Paul Duncan – pabs(at)pablotron.org

  • Ville Aine – vaine(at)cs.helsinki.fi

  • Eric Hodel – drbrain(at)segment7.net

  • Daniel Berger – djberg96(at)gmail.com

  • Phil Hagelberg – technomancy(at)gmail.com

  • Ryan Davis – ryand-ruby(at)zenspider.com

  • Evan Phoenix – evan(at)fallingsnow.net

  • Steve Klabnik – steve(at)steveklabnik.com

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

See LICENSE.txt for permissions.

Thanks!

-The RubyGems Team

frozen_string_literal: true

frozen_string_literal: true

frozen_string_literal: true

frozen_string_literal: true

Constants

DEFAULT_HOST
GEM_DEP_FILES
LOADED_SPECS_MUTEX
MARSHAL_SPEC_DIR

Location of Marshal quick gemspecs on remote repositories

RDoc
READ_BINARY_ERRORS

Exception classes used in a ::read_binary rescue statement. Not all of these are defined in Ruby 1.8.7, hence the need for this convoluted setup.

REPOSITORY_DEFAULT_GEM_SUBDIRECTORIES

Subdirectories in a gem repository for default gems

REPOSITORY_SUBDIRECTORIES

Subdirectories in a gem repository

RUBYGEMS_DIR
VERSION
WIN_PATTERNS

An Array of Regexps that match windows Ruby platforms.

WRITE_BINARY_ERRORS

Exception classes used in ::write_binary rescue statement. Not all of these are defined in Ruby 1.8.7.

Attributes

done_installing_hooks[R]

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

gemdeps[R]

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

loaded_specs[R]

Hash of loaded Gem::Specification keyed by name

post_build_hooks[R]

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

post_install_hooks[R]

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

post_reset_hooks[R]

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

post_uninstall_hooks[R]

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

pre_install_hooks[R]

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

pre_reset_hooks[R]

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

pre_uninstall_hooks[R]

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

Public Class Methods

bin_path(name, exec_name = nil, *requirements) click to toggle source

Find the full path to the executable for gem name. If the exec_name is not given, the gem’s default_executable is chosen, otherwise the specified executable’s path is returned. requirements allows you to specify specific gem versions.

 
               # File rubygems.rb, line 250
def self.bin_path(name, exec_name = nil, *requirements)
  # TODO: fails test_self_bin_path_bin_file_gone_in_latest
  # Gem::Specification.find_by_name(name, *requirements).bin_file exec_name

  raise ArgumentError, "you must supply exec_name" unless exec_name

  requirements = Gem::Requirement.default if
    requirements.empty?

  find_spec_for_exe(name, exec_name, requirements).bin_file exec_name
end
            
binary_mode() click to toggle source

The mode needed to read a file as straight binary.

 
               # File rubygems.rb, line 307
def self.binary_mode
  'rb'
end
            
bindir(install_dir=Gem.dir) click to toggle source

The path where gem executables are to be installed.

 
               # File rubygems.rb, line 314
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
            
clear_default_specs() click to toggle source

Clear default gem related variables. It is for test

 
               # File rubygems.rb, line 1262
def clear_default_specs
  @path_to_default_spec_map.clear
end
            
clear_paths() click to toggle source

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.

 
               # File rubygems.rb, line 325
def self.clear_paths
  @paths         = nil
  @user_home     = nil
  Gem::Specification.reset
  Gem::Security.reset if defined?(Gem::Security)
end
            
config_file() click to toggle source

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

 
               # File rubygems.rb, line 335
def self.config_file
  @config_file ||= File.join Gem.user_home, '.gemrc'
end
            
configuration() click to toggle source

The standard configuration object for gems.

 
               # File rubygems.rb, line 342
def self.configuration
  @configuration ||= Gem::ConfigFile.new []
end
            
configuration=(config) click to toggle source

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

 
               # File rubygems.rb, line 350
def self.configuration=(config)
  @configuration = config
end
            
datadir(gem_name) click to toggle source

The path to the data directory specified by the gem name. If the package is not available as a gem, return nil.

 
               # File rubygems.rb, line 358
  def self.datadir(gem_name)
# TODO: deprecate
    spec = @loaded_specs[gem_name]
    return nil if spec.nil?
    spec.datadir
  end
            
default_bindir() click to toggle source

The default directory for binaries

 
               # File rubygems/defaults.rb, line 117
def self.default_bindir
  if defined? RUBY_FRAMEWORK_VERSION then # mac framework support
    '/usr/bin'
  else # generic install
    RbConfig::CONFIG['bindir']
  end
end
            
default_cert_path() click to toggle source

The default signing certificate chain path

 
               # File rubygems/defaults.rb, line 146
def self.default_cert_path
  File.join Gem.user_home, ".gem", "gem-public_cert.pem"
end
            
default_dir() click to toggle source

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

 
               # File rubygems/defaults.rb, line 30
def self.default_dir
  path = if defined? RUBY_FRAMEWORK_VERSION then
           [
             File.dirname(RbConfig::CONFIG['sitedir']),
             'Gems',
             RbConfig::CONFIG['ruby_version']
           ]
         elsif RbConfig::CONFIG['rubylibprefix'] then
           [
            RbConfig::CONFIG['rubylibprefix'],
            'gems',
            RbConfig::CONFIG['ruby_version']
           ]
         else
           [
             RbConfig::CONFIG['libdir'],
             ruby_engine,
             'gems',
             RbConfig::CONFIG['ruby_version']
           ]
         end

  @default_dir ||= File.join(*path)
end
            
default_exec_format() click to toggle source

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

 
               # File rubygems/defaults.rb, line 103
def self.default_exec_format
  exec_format = RbConfig::CONFIG['ruby_install_name'].sub('ruby', '%s') rescue '%s'

  unless exec_format =~ /%s/ then
    raise Gem::Exception,
      "[BUG] invalid exec_format #{exec_format.inspect}, no %s"
  end

  exec_format
end
            
default_ext_dir_for(base_dir) click to toggle source

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

 
               # File rubygems/defaults.rb, line 62
def self.default_ext_dir_for base_dir
  nil
end
            
default_gems_use_full_paths?() click to toggle source

Whether to expect full paths in default gems - true for non-MRI ruby implementations

 
               # File rubygems/defaults.rb, line 153
def self.default_gems_use_full_paths?
  ruby_engine != 'ruby'
end
            
default_key_path() click to toggle source

The default signing key path

 
               # File rubygems/defaults.rb, line 139
def self.default_key_path
  File.join Gem.user_home, ".gem", "gem-private_key.pem"
end
            
default_path() click to toggle source

Default gem load path

 
               # File rubygems/defaults.rb, line 92
def self.default_path
  path = []
  path << user_dir if user_home && File.exist?(user_home)
  path << default_dir
  path << vendor_dir if vendor_dir and File.directory? vendor_dir
  path
end
            
default_rubygems_dirs() click to toggle source

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

 
               # File rubygems/defaults.rb, line 69
def self.default_rubygems_dirs
  nil # default to standard layout
end
            
default_sources() click to toggle source

An Array of the default sources that come with RubyGems

 
               # File rubygems/defaults.rb, line 14
def self.default_sources
  %w[https://rubygems.org/]
end
            
default_spec_cache_dir() click to toggle source

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

 
               # File rubygems/defaults.rb, line 22
def self.default_spec_cache_dir
  File.join Gem.user_home, '.gem', 'specs'
end
            
deflate(data) click to toggle source

A Zlib::Deflate.deflate wrapper

 
               # File rubygems.rb, line 368
def self.deflate(data)
  require 'zlib'
  Zlib::Deflate.deflate data
end
            
detect_gemdeps(path = nil) click to toggle source

TODO remove with RubyGems 3.0

Alias for: use_gemdeps
dir() click to toggle source

The path where gems are to be installed.

 
               # File rubygems.rb, line 418
def self.dir
  paths.home
end
            
done_installing(&hook) click to toggle source

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

 
               # File rubygems.rb, line 776
def self.done_installing(&hook)
  @done_installing_hooks << hook
end
            
ensure_default_gem_subdirectories(dir = Gem.dir, mode = nil) click to toggle source

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.

 
               # File rubygems.rb, line 452
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) click to toggle source

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.

 
               # File rubygems.rb, line 439
def self.ensure_gem_subdirectories dir = Gem.dir, mode = nil
  ensure_subdirectories(dir, mode, REPOSITORY_SUBDIRECTORIES)
end
            
env_requirement(gem_name) click to toggle source
 
               # File rubygems.rb, line 908
def self.env_requirement(gem_name)
  @env_requirements_by_name ||= {}
  @env_requirements_by_name[gem_name] ||= begin
    req = ENV["GEM_REQUIREMENT_#{gem_name.upcase}"] || '>= 0'.freeze
    Gem::Requirement.create(req)
  end
end
            
find_files(glob, check_load_path=true) click to toggle source

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

 
               # File rubygems.rb, line 499
def self.find_files(glob, check_load_path=true)
  files = []

  files = find_files_from_load_path glob if check_load_path

  gem_specifications = @gemdeps ? Gem.loaded_specs.values : Gem::Specification.stubs

  files.concat gem_specifications.map { |spec|
    spec.matches_for_glob("#{glob}#{Gem.suffix_pattern}")
  }.flatten

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

  return files
end
            
find_latest_files(glob, check_load_path=true) click to toggle source

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.

 
               # File rubygems.rb, line 535
def self.find_latest_files(glob, check_load_path=true)
  files = []

  files = find_files_from_load_path glob if check_load_path

  files.concat Gem::Specification.latest_specs(true).map { |spec|
    spec.matches_for_glob("#{glob}#{Gem.suffix_pattern}")
  }.flatten

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

  return files
end
            
find_unresolved_default_spec(path) click to toggle source

Find a Gem::Specification of default gem from path

 
               # File rubygems.rb, line 1241
def find_unresolved_default_spec(path)
  Gem.suffixes.each do |suffix|
    spec = @path_to_default_spec_map["#{path}#{suffix}"]
    return spec if spec
  end
  nil
end
            
finish_resolve(request_set=Gem::RequestSet.new) click to toggle source
 
               # File rubygems.rb, line 235
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
            
gunzip(data) click to toggle source

Zlib::GzipReader wrapper that unzips data.

 
               # File rubygems.rb, line 596
def self.gunzip(data)
  require 'rubygems/util'
  Gem::Util.gunzip data
end
            
gzip(data) click to toggle source

Zlib::GzipWriter wrapper that zips data.

 
               # File rubygems.rb, line 604
def self.gzip(data)
  require 'rubygems/util'
  Gem::Util.gzip data
end
            
host() click to toggle source

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

 
               # File rubygems.rb, line 636
def self.host
  # TODO: move to utils
  @host ||= Gem::DEFAULT_HOST
end
            
host=(host) click to toggle source

Set the default RubyGems API host.

 
               # File rubygems.rb, line 643
def self.host= host
  # TODO: move to utils
  @host = host
end
            
inflate(data) click to toggle source

A Zlib::Inflate#inflate wrapper

 
               # File rubygems.rb, line 612
def self.inflate(data)
  require 'rubygems/util'
  Gem::Util.inflate data
end
            
install(name, version = Gem::Requirement.default, *options) click to toggle source

Top level install helper method. Allows you to install gems interactively:

% irb
>> Gem.install "minitest"
Fetching: minitest-3.0.1.gem (100%)
=> [#<Gem::Specification:0x1013b4528 @name="minitest", ...>]
 
               # File rubygems.rb, line 625
def self.install name, version = Gem::Requirement.default, *options
  require "rubygems/dependency_installer"
  inst = Gem::DependencyInstaller.new(*options)
  inst.install name, version
  inst.installed_gems
end
            
latest_rubygems_version() click to toggle source

Returns the latest release version of RubyGems.

 
               # File rubygems.rb, line 933
def self.latest_rubygems_version
  latest_version_for('rubygems-update') or
    raise "Can't find 'rubygems-update' in any repo. Check `gem source list`."
end
            
latest_spec_for(name) click to toggle source

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

 
               # File rubygems.rb, line 920
def self.latest_spec_for name
  dependency   = Gem::Dependency.new name
  fetcher      = Gem::SpecFetcher.fetcher
  spec_tuples, = fetcher.spec_for_dependency dependency

  spec, = spec_tuples.first

  spec
end
            
latest_version_for(name) click to toggle source

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

 
               # File rubygems.rb, line 941
def self.latest_version_for name
  spec = latest_spec_for name
  spec and spec.version
end
            
load_env_plugins() click to toggle source

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

 
               # File rubygems.rb, line 1107
def self.load_env_plugins
  path = "rubygems_plugin"

  files = []
  $LOAD_PATH.each do |load_path|
    globbed = Dir["#{File.expand_path path, load_path}#{Gem.suffix_pattern}"]

    globbed.each do |load_path_file|
      files << load_path_file if File.file?(load_path_file.untaint)
    end
  end

  load_plugin_files files
end
            
load_path_insert_index() click to toggle source

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

 
               # File rubygems.rb, line 652
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
end
            
load_plugins() click to toggle source

Find the ‘rubygems_plugin’ files in the latest installed gems and load them

 
               # File rubygems.rb, line 1095
def self.load_plugins
  # Remove this env var by at least 3.0
  if ENV['RUBYGEMS_LOAD_ALL_PLUGINS']
    load_plugin_files find_files('rubygems_plugin', false)
  else
    load_plugin_files find_latest_files('rubygems_plugin', false)
  end
end
            
load_yaml() click to toggle source

Loads YAML, preferring Psych

 
               # File rubygems.rb, line 667
def self.load_yaml
  return if @yaml_loaded
  return unless defined?(gem)

  test_syck = ENV['TEST_SYCK']

  # Only Ruby 1.8 and 1.9 have syck
  test_syck = false unless /^1\./ =~ RUBY_VERSION

  unless test_syck
    begin
      gem 'psych', '>= 1.2.1'
    rescue Gem::LoadError
      # It's OK if the user does not have the psych gem installed.  We will
      # attempt to require the stdlib version
    end

    begin
      # Try requiring the gem version *or* stdlib version of psych.
      require 'psych'
    rescue ::LoadError
      # If we can't load psych, thats fine, go on.
    else
      # If 'yaml' has already been required, then we have to
      # be sure to switch it over to the newly loaded psych.
      if defined?(YAML::ENGINE) && YAML::ENGINE.yamler != "psych"
        YAML::ENGINE.yamler = "psych"
      end

      require 'rubygems/psych_additions'
      require 'rubygems/psych_tree'
    end
  end

  require 'yaml'

  # If we're supposed to be using syck, then we may have to force
  # activate it via the YAML::ENGINE API.
  if test_syck and defined?(YAML::ENGINE)
    YAML::ENGINE.yamler = "syck" unless YAML::ENGINE.syck?
  end

  # Now that we're sure some kind of yaml library is loaded, pull
  # in our hack to deal with Syck's DefaultKey ugliness.
  require 'rubygems/syck_hack'

  @yaml_loaded = true
end
            
location_of_caller() click to toggle source

The file name and line number of the caller of the caller of this method.

 
               # File rubygems.rb, line 719
def self.location_of_caller
  caller[1] =~ /(.*?):(\d+).*?$/i
  file = $1
  lineno = $2.to_i

  [file, lineno]
end
            
marshal_version() click to toggle source

The version of the Marshal format for your Ruby.

 
               # File rubygems.rb, line 730
def self.marshal_version
  "#{Marshal::MAJOR_VERSION}.#{Marshal::MINOR_VERSION}"
end
            
needs() click to toggle source
 
               # File rubygems.rb, line 227
def self.needs
  rs = Gem::RequestSet.new

  yield rs

  finish_resolve rs
end
            
path() click to toggle source
 
               # File rubygems.rb, line 422
def self.path
  paths.path
end
            
path_separator() click to toggle source

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

 
               # File rubygems/defaults.rb, line 85
def self.path_separator
  File::PATH_SEPARATOR
end
            
paths() click to toggle source

Retrieve the PathSupport object that RubyGems uses to lookup files.

 
               # File rubygems.rb, line 376
def self.paths
  @paths ||= Gem::PathSupport.new(ENV)
end
            
paths=(env) click to toggle source

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.

 
               # File rubygems.rb, line 386
  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() click to toggle source

Default options for gem commands.

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

 
               # File rubygems/defaults.rb, line 193
def self.platform_defaults
  {}
end
            
platforms() click to toggle source

Array of platforms this RubyGems supports.

 
               # File rubygems.rb, line 744
def self.platforms
  @platforms ||= []
  if @platforms.empty?
    @platforms = [Gem::Platform::RUBY, Gem::Platform.local]
  end
  @platforms
end
            
platforms=(platforms) click to toggle source

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

 
               # File rubygems.rb, line 737
def self.platforms=(platforms)
  @platforms = platforms
end
            
post_build(&hook) click to toggle source

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.

 
               # File rubygems.rb, line 759
def self.post_build(&hook)
  @post_build_hooks << hook
end
            
post_install(&hook) click to toggle source

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

 
               # File rubygems.rb, line 767
def self.post_install(&hook)
  @post_install_hooks << hook
end
            
post_reset(&hook) click to toggle source

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

 
               # File rubygems.rb, line 784
def self.post_reset(&hook)
  @post_reset_hooks << hook
end
            
post_uninstall(&hook) click to toggle source

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

 
               # File rubygems.rb, line 793
def self.post_uninstall(&hook)
  @post_uninstall_hooks << hook
end
            
pre_install(&hook) click to toggle source

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.

 
               # File rubygems.rb, line 802
def self.pre_install(&hook)
  @pre_install_hooks << hook
end
            
pre_reset(&hook) click to toggle source

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

 
               # File rubygems.rb, line 810
def self.pre_reset(&hook)
  @pre_reset_hooks << hook
end
            
pre_uninstall(&hook) click to toggle source

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

 
               # File rubygems.rb, line 819
def self.pre_uninstall(&hook)
  @pre_uninstall_hooks << hook
end
            
prefix() click to toggle source

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.

 
               # File rubygems.rb, line 828
def self.prefix
  prefix = File.dirname RUBYGEMS_DIR

  if prefix != File.expand_path(RbConfig::CONFIG['sitelibdir']) and
     prefix != File.expand_path(RbConfig::CONFIG['libdir']) and
     'lib' == File.basename(RUBYGEMS_DIR) then
    prefix
  end
end
            
read_binary(path) click to toggle source

Safely read a file in binary mode on all platforms.

 
               # File rubygems.rb, line 848
def self.read_binary(path)
  open path, 'rb+' do |f|
    f.flock(File::LOCK_EX)
    f.read
  end
rescue *READ_BINARY_ERRORS
  open path, 'rb' do |f|
    f.read
  end
rescue Errno::ENOLCK # NFS
  if Thread.main != Thread.current
    raise
  else
    open path, 'rb' do |f|
      f.read
    end
  end
end
            
refresh() click to toggle source

Refresh available gems from disk.

 
               # File rubygems.rb, line 841
def self.refresh
  Gem::Specification.reset
end
            
register_default_spec(spec) click to toggle source

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.

 
               # File rubygems.rb, line 1220
def register_default_spec(spec)
  new_format = Gem.default_gems_use_full_paths? || spec.require_paths.any? {|path| spec.files.any? {|f| f.start_with? path } }

  if new_format
    prefix_group = spec.require_paths.map {|f| f + "/"}.join("|")
    prefix_pattern = /^(#{prefix_group})/
  end

  spec.files.each do |file|
    if new_format
      file = file.sub(prefix_pattern, "")
      next unless $~
    end

    @path_to_default_spec_map[file] = spec
  end
end
            
remove_unresolved_default_spec(spec) click to toggle source

Remove needless Gem::Specification of default gem from unresolved default gem list

 
               # File rubygems.rb, line 1253
def remove_unresolved_default_spec(spec)
  spec.files.each do |file|
    @path_to_default_spec_map.delete(file)
  end
end
            
ruby() click to toggle source

The path to the running Ruby interpreter.

 
               # File rubygems.rb, line 890
def self.ruby
  if @ruby.nil? then
    @ruby = File.join(RbConfig::CONFIG['bindir'],
                      "#{RbConfig::CONFIG['ruby_install_name']}#{RbConfig::CONFIG['EXEEXT']}")

    @ruby = "\"#{@ruby}\"" if @ruby =~ /\s/
  end

  @ruby
end
            
ruby=(ruby) click to toggle source

Allows setting path to Ruby. This method is available when requiring ‘rubygems/test_case’

 
               # File rubygems/test_case.rb, line 65
def self.ruby= ruby
  @ruby = ruby
end
            
ruby_api_version() click to toggle source

Returns a String containing the API compatibility version of Ruby

 
               # File rubygems.rb, line 904
def self.ruby_api_version
  @ruby_api_version ||= RbConfig::CONFIG['ruby_version'].dup
end
            
ruby_engine() click to toggle source

A wrapper around RUBY_ENGINE const that may not be defined

 
               # File rubygems/defaults.rb, line 128
def self.ruby_engine
  if defined? RUBY_ENGINE then
    RUBY_ENGINE
  else
    'ruby'
  end
end
            
ruby_version() click to toggle source

A Gem::Version for the currently running Ruby.

 
               # File rubygems.rb, line 949
def self.ruby_version
  return @ruby_version if defined? @ruby_version
  version = RUBY_VERSION.dup

  if defined?(RUBY_PATCHLEVEL) && RUBY_PATCHLEVEL != -1 then
    version << ".#{RUBY_PATCHLEVEL}"
  elsif defined?(RUBY_REVISION) then
    version << ".dev.#{RUBY_REVISION}"
  end

  @ruby_version = Gem::Version.new version
end
            
rubygems_version() click to toggle source

A Gem::Version for the currently running RubyGems

 
               # File rubygems.rb, line 965
def self.rubygems_version
  return @rubygems_version if defined? @rubygems_version
  @rubygems_version = Gem::Version.new Gem::VERSION
end
            
searcher=(searcher) click to toggle source

Allows setting the gem path searcher. This method is available when requiring ‘rubygems/test_case’

 
               # File rubygems/test_case.rb, line 49
def self.searcher=(searcher)
  @searcher = searcher
end
            
sources() click to toggle source

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

 
               # File rubygems.rb, line 974
def self.sources
  source_list = configuration.sources || default_sources
  @sources ||= Gem::SourceList.from(source_list)
end
            
sources=(new_sources) click to toggle source

Need to be able to set the sources without calling ::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.

 
               # File rubygems.rb, line 986
def self.sources= new_sources
  if !new_sources
    @sources = nil
  else
    @sources = Gem::SourceList.from(new_sources)
  end
end
            
spec_cache_dir() click to toggle source
 
               # File rubygems.rb, line 426
def self.spec_cache_dir
  paths.spec_cache_dir
end
            
suffix_pattern() click to toggle source

Glob pattern for require-able path suffixes.

 
               # File rubygems.rb, line 997
def self.suffix_pattern
  @suffix_pattern ||= "{#{suffixes.join(',')}}"
end
            
suffixes() click to toggle source

Suffixes for require-able paths.

 
               # File rubygems.rb, line 1004
def self.suffixes
  @suffixes ||= ['',
                 '.rb',
                 *%w(DLEXT DLEXT2).map { |key|
                   val = RbConfig::CONFIG[key]
                   next unless val and not val.empty?
                   ".#{val}"
                 }
                ].compact.uniq
end
            
time(msg, width = 0, display = Gem.configuration.verbose) click to toggle source

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

 
               # File rubygems.rb, line 1019
def self.time(msg, width = 0, display = Gem.configuration.verbose)
  now = Time.now

  value = yield

  elapsed = Time.now - now

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

  value
end
            
try_activate(path) click to toggle source

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.

 
               # File rubygems.rb, line 202
def self.try_activate path
  # finds the _latest_ version... regardless of loaded specs and their deps
  # if another gem had a requirement that would mean we shouldn't
  # activate the latest version, then either it would already be activated
  # or if it was ambiguous (and thus unresolved) the code in our custom
  # require will try to activate the more specific version.

  spec = Gem::Specification.find_by_path path
  return false unless spec
  return true if spec.activated?

  begin
    spec.activate
  rescue Gem::LoadError => e # this could fail due to gem dep collisions, go lax
    spec_by_name = Gem::Specification.find_by_name(spec.name)
    if spec_by_name.nil?
      raise e
    else
      spec_by_name.activate
    end
  end

  return true
end
            
ui() click to toggle source

Lazily loads DefaultUserInteraction and returns the default UI.

 
               # File rubygems.rb, line 1034
def self.ui
  require 'rubygems/user_interaction'

  Gem::DefaultUserInteraction.ui
end
            
use_gemdeps(path = nil) click to toggle source

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.

 
               # File rubygems.rb, line 1142
def self.use_gemdeps path = nil
  raise_exception = path

  path ||= ENV['RUBYGEMS_GEMDEPS']
  return unless path

  path = path.dup

  if path == "-" then
    require 'rubygems/util'

    Gem::Util.traverse_parents Dir.pwd do |directory|
      dep_file = GEM_DEP_FILES.find { |f| File.file?(f) }

      next unless dep_file

      path = File.join directory, dep_file
      break
    end
  end

  path.untaint

  unless File.file? path then
    return unless raise_exception

    raise ArgumentError, "Unable to find gem dependencies file at #{path}"
  end

  rs = Gem::RequestSet.new
  @gemdeps = rs.load_gemdeps path

  rs.resolve_current.map do |s|
    sp = s.full_spec
    sp.activate
    sp
  end
rescue Gem::LoadError, Gem::UnsatisfiableDependencyError => e
  warn e.message
  warn "You may need to `gem install -g` to install missing gems"
  warn ""
end
            
Also aliased as: detect_gemdeps
use_paths(home, *paths) click to toggle source

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

 
               # File rubygems.rb, line 1044
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() click to toggle source

Path for gems in the user’s home directory

 
               # File rubygems/defaults.rb, line 76
def self.user_dir
  parts = [Gem.user_home, '.gem', ruby_engine]
  parts << RbConfig::CONFIG['ruby_version'] unless RbConfig::CONFIG['ruby_version'].empty?
  File.join parts
end
            
user_home() click to toggle source

The home directory for the user.

 
               # File rubygems.rb, line 1055
def self.user_home
  @user_home ||= find_home.untaint
end
            
win_platform=(val) click to toggle source

Allows toggling Windows behavior. This method is available when requiring ‘rubygems/test_case’

 
               # File rubygems/test_case.rb, line 57
def self.win_platform=(val)
  @@win_platform = val
end
            
win_platform?() click to toggle source

Is this a windows platform?

 
               # File rubygems.rb, line 1062
def self.win_platform?
  if @@win_platform.nil? then
    ruby_platform = RbConfig::CONFIG['host_os']
    @@win_platform = !!WIN_PATTERNS.find { |r| ruby_platform =~ r }
  end

  @@win_platform
end
            
write_binary(path, data) click to toggle source

Safely write a file in binary mode on all platforms.

 
               # File rubygems.rb, line 869
def self.write_binary(path, data)
  open(path, 'wb') do |io|
    begin
      io.flock(File::LOCK_EX)
    rescue *WRITE_BINARY_ERRORS
    end
    io.write data
  end
rescue Errno::ENOLCK # NFS
  if Thread.main != Thread.current
    raise
  else
    open(path, 'wb') do |io|
      io.write data
    end
  end
end