Provides a single method deprecate to be used to declare when something is going away.
class Legacy def self.klass_method # ... end def instance_method # ... end extend Gem::Deprecate deprecate :instance_method, "X.z", 2011, 4 class << self extend Gem::Deprecate deprecate :klass_method, :none, 2011, 4 end end
RubyGems is the Ruby standard for publishing and managing third party libraries.
For user documentation, see:
gem help and gem help [command]
For gem developer documentation see:
Gem::Version for version dependency notes
Further RubyGems documentation can be found at:
RubyGems API (also available from gem server)
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 Gem::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 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/operating_system.rb and override any defaults from lib/rubygems/defaults.rb.
For Ruby implementers, provide lib/rubygems/#{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 Gem::pre_install, Gem::pre_uninstall, Gem::post_install, Gem::post_uninstall.
You can submit bugs to the RubyGems bug tracker on RubyForge
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 Weirch – 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@phx.io
(If your name is missing, PLEASE let us know!)
Thanks!
-The RubyGems Team
Only MRI 1.9.2 has the custom prelude.
Location of Marshal quick gemspecs on remote repositories
An Array of Regexps that match windows ruby platforms.
Activates an installed gem matching dep. The gem must satisfy requirements.
Returns true if the gem is activated, false if it is already loaded, or an exception otherwise.
Gem#activate adds the library paths in dep to $LOAD_PATH. Before a Gem is activated its required Gems are activated. If the version information is omitted, the highest version Gem of the supplied name is loaded. If a Gem is not found that meets the version requirements or a required Gem is not found, a Gem::LoadError is raised.
More information on version requirements can be found in the Gem::Requirement and Gem::Version documentation.
# File lib/rubygems.rb, line 234 def self.activate(dep, *requirements) raise ArgumentError, "Deprecated use of Gem.activate(dep)" if Gem::Dependency === dep Gem::Specification.find_by_name(dep, *requirements).activate end
An Array of all possible load paths for all versions of all gems in the Gem installation.
# File lib/rubygems.rb, line 257 def self.all_load_paths result = [] Gem.path.each do |gemdir| each_load_path all_partials(gemdir) do |load_path| result << load_path end end result end
See if a given gem is available.
# File lib/rubygems.rb, line 281 def self.available?(dep, *requirements) requirements = Gem::Requirement.default if requirements.empty? unless dep.respond_to?(:name) and dep.respond_to?(:requirement) then dep = Gem::Dependency.new dep, requirements end not dep.matching_specs(true).empty? end
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 lib/rubygems.rb, line 297 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? specs = Gem::Dependency.new(name, requirements).matching_specs(true) raise Gem::GemNotFoundException, "can't find gem #{name} (#{requirements})" if specs.empty? specs = specs.find_all { |spec| spec.executables.include? exec_name } if exec_name unless spec = specs.last msg = "can't find gem #{name} (#{requirements}) with executable #{exec_name}" raise Gem::GemNotFoundException, msg end spec.bin_file exec_name end
The mode needed to read a file as straight binary.
# File lib/rubygems.rb, line 326 def self.binary_mode 'rb' end
The path where gem executables are to be installed.
# File lib/rubygems.rb, line 333 def self.bindir(install_dir=Gem.dir) # TODO: move to Gem::Dirs return File.join install_dir, 'bin' unless install_dir.to_s == Gem.default_dir.to_s Gem.default_bindir end
Get the appropriate cache path.
Pass a string to use a different base path, or nil/false (default) for Gem.dir.
# File lib/rubygems.rb, line 721 def self.cache_dir(custom_dir=false) File.join(custom_dir || Gem.dir, "cache") end
Given a gem path, find the gem in cache.
Pass a string as the second argument to use a different base path, or nil/false (default) for Gem.dir.
# File lib/rubygems.rb, line 731 def self.cache_gem(filename, user_dir=false) cache_dir(user_dir).add(filename) end
Reset the dir and path values. The next time dir or path is requested, the values will be calculated from scratch. This is mainly used by the unit tests to provide test isolation.
# File lib/rubygems.rb, line 345 def self.clear_paths @@source_index = nil @paths = nil @user_home = nil @searcher = nil Gem::Specification.reset end
The path to standard location of the user’s .gemrc file.
# File lib/rubygems.rb, line 356 def self.config_file @config_file ||= File.join Gem.user_home, '.gemrc' end
The standard configuration object for gems.
# File lib/rubygems.rb, line 363 def self.configuration @configuration ||= Gem::ConfigFile.new [] end
Use the given configuration object (which implements the ConfigFile protocol) as the standard configuration object.
# File lib/rubygems.rb, line 371 def self.configuration=(config) @configuration = config end
The path the the data directory specified by the gem name. If the package is not available as a gem, return nil.
# File lib/rubygems.rb, line 379 def self.datadir(gem_name) # TODO: deprecate spec = @loaded_specs[gem_name] return nil if spec.nil? File.join spec.full_gem_path, "data", gem_name end
The default directory for binaries
# File lib/rubygems/defaults.rb, line 88 def self.default_bindir if defined? RUBY_FRAMEWORK_VERSION then # mac framework support '/usr/bin' else # generic install ConfigMap[:bindir] end end
Default home directory path to be used if an alternate value is not specified in the environment
# File lib/rubygems/defaults.rb, line 21 def self.default_dir path = if defined? RUBY_FRAMEWORK_VERSION then [ File.dirname(ConfigMap[:sitedir]), 'Gems', ConfigMap[:ruby_version] ] elsif ConfigMap[:rubylibprefix] then [ ConfigMap[:rubylibprefix], 'gems', ConfigMap[:ruby_version] ] else [ ConfigMap[:libdir], ruby_engine, 'gems', ConfigMap[:ruby_version] ] end @default_dir ||= File.join(*path) end
Deduce Ruby’s –program-prefix and –program-suffix from its install name
# File lib/rubygems/defaults.rb, line 74 def self.default_exec_format exec_format = ConfigMap[: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 gem load path
# File lib/rubygems/defaults.rb, line 63 def self.default_path if File.exist? Gem.user_home then [user_dir, default_dir] else [default_dir] end end
Paths where RubyGems’ .rb files and bin files are installed
# File lib/rubygems/defaults.rb, line 49 def self.default_rubygems_dirs nil # default to standard layout end
An Array of the default sources that come with RubyGems
# File lib/rubygems/defaults.rb, line 13 def self.default_sources ]http://rubygems.org/] end
The default system-wide source info cache directory
# File lib/rubygems/defaults.rb, line 99 def self.default_system_source_cache_dir File.join(Gem.dir, 'source_cache') end
The default user-specific source info cache directory
# File lib/rubygems/defaults.rb, line 106 def self.default_user_source_cache_dir # # NOTE Probably an argument for moving this to per-ruby supported dirs like # user_dir # File.join(Gem.user_home, '.gem', 'source_cache') end
A Zlib::Deflate.deflate wrapper
# File lib/rubygems.rb, line 389 def self.deflate(data) require 'zlib' Zlib::Deflate.deflate data end
The path where gems are to be installed.
# File lib/rubygems.rb, line 409 def self.dir # TODO: raise "no" paths.home end
Quietly ensure the named Gem directory contains all the proper subdirectories. If we can’t create a directory due to a permission problem, then we will silently continue.
# File lib/rubygems.rb, line 447 def self.ensure_gem_subdirectories dir = Gem.dir old_umask = File.umask File.umask old_umask | 002 require 'fileutils' ]cache doc gems specifications].each do |name| subdir = File.join dir, name next if File.exist? subdir FileUtils.mkdir_p subdir rescue nil # in case of perms issues -- lame end ensure File.umask old_umask end
Ensure that SSL is available. Throw an exception if it is not.
# File lib/rubygems/gem_openssl.rb, line 31 def ensure_ssl_available unless ssl_available? raise Gem::Exception, "SSL is not installed on this system" end end
Returns a list of paths matching glob that can be used by a gem to pick up features from other gems. For example:
Gem.find_files('rdoc/discover').each do |path| load path end
if check_load_path is true (the default), then find_files also searches $LOAD_PATH for files as well as gems.
Note that find_files will return all files even if they are from different versions of the same gem.
# File lib/rubygems.rb, line 474 def self.find_files(glob, check_load_path=true) files = [] if check_load_path files = $LOAD_PATH.map { |load_path| Dir["#{File.expand_path glob, load_path}#{Gem.suffix_pattern}"] }.flatten.select { |file| File.file? file.untaint } end files.concat Gem::Specification.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
Zlib::GzipReader wrapper that unzips data.
# File lib/rubygems.rb, line 537 def self.gunzip(data) # TODO: move to utils require 'stringio' require 'zlib' data = StringIO.new data Zlib::GzipReader.new(data).read end
Zlib::GzipWriter wrapper that zips data.
# File lib/rubygems.rb, line 549 def self.gzip(data) # TODO: move to utils require 'stringio' require 'zlib' zipped = StringIO.new Zlib::GzipWriter.wrap zipped do |io| io.write data end zipped.string end
Get the default RubyGems API host. This is normally https://rubygems.org.
# File lib/rubygems.rb, line 573 def self.host # TODO: move to utils @host ||= "https://rubygems.org" end
Set the default RubyGems API host.
# File lib/rubygems.rb, line 580 def self.host= host # TODO: move to utils @host = host end
A Zlib::Inflate#inflate wrapper
# File lib/rubygems.rb, line 563 def self.inflate(data) # TODO: move to utils require 'zlib' Zlib::Inflate.inflate data end
Return a list of all possible load paths for the latest version for all gems in the Gem installation.
# File lib/rubygems.rb, line 589 def self.latest_load_paths result = [] Gem.path.each do |gemdir| each_load_path(latest_partials(gemdir)) do |load_path| result << load_path end end result end
# File lib/rubygems.rb, line 950 def self.latest_rubygems_version latest_version_for "rubygems-update" end
# File lib/rubygems.rb, line 931 def self.latest_spec_for name dependency = Gem::Dependency.new name fetcher = Gem::SpecFetcher.fetcher spec_tuples = fetcher.find_matching dependency match = spec_tuples.select { |(n, _, p), _| n == name and Gem::Platform.match p }.sort_by { |(_, version, _), _| version }.last match and fetcher.fetch_spec(*match) end
# File lib/rubygems.rb, line 945 def self.latest_version_for name spec = latest_spec_for name spec and spec.version end
Find all ‘rubygems_plugin’ files in $LOAD_PATH and load them
# File lib/rubygems.rb, line 1114 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
The index to insert activated gem paths into the $LOAD_PATH.
Defaults to the site lib directory unless gem_prelude.rb has loaded paths, then it inserts the activated gem’s paths before the gem_prelude.rb paths so you can override the gem_prelude.rb default $LOAD_PATH paths.
# File lib/rubygems.rb, line 629 def self.load_path_insert_index index = $LOAD_PATH.index ConfigMap[:sitelibdir] if QUICKLOADER_SUCKAGE then $LOAD_PATH.each_with_index do |path, i| if path.instance_variables.include?(:@gem_prelude_index) or path.instance_variables.include?('@gem_prelude_index') then index = i break end end end index end
Load plugins as ruby files
# File lib/rubygems.rb, line 1087 def self.load_plugin_files(plugins) plugins.each do |plugin| # Skip older versions of the GemCutter plugin: Its commands are in # RubyGems proper now. next if plugin =~ /gemcutter-0\.[0-3]/ begin load plugin rescue ::Exception => e details = "#{plugin.inspect}: #{e.message} (#{e.class})" warn "Error loading RubyGems plugin #{details}" end end end
Find all ‘rubygems_plugin’ files in installed gems and load them
# File lib/rubygems.rb, line 1107 def self.load_plugins load_plugin_files find_files('rubygems_plugin', false) end
Loads YAML, preferring Psych
# File lib/rubygems.rb, line 650 def self.load_yaml return if @yaml_loaded test_syck = ENV['TEST_SYCK'] unless test_syck begin gem 'psych', '~> 1.2', '>= 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
# File lib/rubygems.rb, line 1010 def self.loaded_path? path # TODO: ruby needs a feature to let us query what's loaded in 1.8 and 1.9 re = /(^|\/)#{Regexp.escape path}#{Regexp.union(*Gem.suffixes)}$/ $LOADED_FEATURES.any? { |s| s =~ re } end
The file name and line number of the caller of the caller of this method.
# File lib/rubygems.rb, line 698 def self.location_of_caller caller[1] =~ /(.*?):(\d+).*?$/ file = $1 lineno = $2.to_i # TODO: it is ALWAYS joined! STUPID! [file, lineno] end
The version of the Marshal format for your Ruby.
# File lib/rubygems.rb, line 710 def self.marshal_version "#{Marshal::MAJOR_VERSION}.#{Marshal::MINOR_VERSION}" end
# File lib/rubygems.rb, line 414 def self.path # TODO: raise "no" paths.path end
# File lib/rubygems.rb, line 394 def self.paths @paths ||= Gem::PathSupport.new end
# File lib/rubygems.rb, line 398 def self.paths=(env) clear_paths @paths = Gem::PathSupport.new env Gem::Specification.dirs = @paths.path # FIX: home is at end end
Array of platforms this RubyGems supports.
# File lib/rubygems.rb, line 745 def self.platforms @platforms ||= [] if @platforms.empty? @platforms = [Gem::Platform::RUBY, Gem::Platform.local] end @platforms end
Set array of platforms this RubyGems supports (primarily for testing).
# File lib/rubygems.rb, line 738 def self.platforms=(platforms) @platforms = platforms end
Adds a post-build hook that will be passed an Gem::Installer instance when Gem::Installer#install is called. The hook is called after the gem has been extracted and extensions have been built but before the executables or gemspec has been written. If the hook returns false then the gem’s files will be removed and the install will be aborted.
# File lib/rubygems.rb, line 760 def self.post_build(&hook) @post_build_hooks << hook end
Adds a post-install hook that will be passed an Gem::Installer instance when Gem::Installer#install is called
# File lib/rubygems.rb, line 768 def self.post_install(&hook) @post_install_hooks << hook end
Adds a hook that will get run after Gem::Specification.reset is run.
# File lib/rubygems.rb, line 776 def self.post_reset(&hook) @post_reset_hooks << hook end
Adds a post-uninstall hook that will be passed a Gem::Uninstaller instance and the spec that was uninstalled when Gem::Uninstaller#uninstall is called
# File lib/rubygems.rb, line 785 def self.post_uninstall(&hook) @post_uninstall_hooks << hook end
Adds a pre-install hook that will be passed an Gem::Installer instance when Gem::Installer#install is called. If the hook returns false then the install will be aborted.
# File lib/rubygems.rb, line 794 def self.pre_install(&hook) @pre_install_hooks << hook end
Adds a hook that will get run before Gem::Specification.reset is run.
# File lib/rubygems.rb, line 802 def self.pre_reset(&hook) @pre_reset_hooks << hook end
Adds a pre-uninstall hook that will be passed an Gem::Uninstaller instance and the spec that will be uninstalled when Gem::Uninstaller#uninstall is called
# File lib/rubygems.rb, line 811 def self.pre_uninstall(&hook) @pre_uninstall_hooks << hook end
The directory prefix this RubyGems was installed at. If your prefix is in a standard location (ie, rubygems is installed where you’d expect it to be), then prefix returns nil.
# File lib/rubygems.rb, line 820 def self.prefix prefix = File.dirname RUBYGEMS_DIR if prefix != File.expand_path(ConfigMap[:sitelibdir]) and prefix != File.expand_path(ConfigMap[:libdir]) and 'lib' == File.basename(RUBYGEMS_DIR) then prefix end end
Promotes the load paths of the gem_name over the load paths of over_name. Useful for allowing one gem to override features in another using find_files.
# File lib/rubygems.rb, line 835 def self.promote_load_path(gem_name, over_name) gem = Gem.loaded_specs[gem_name] over = Gem.loaded_specs[over_name] raise ArgumentError, "gem #{gem_name} is not activated" if gem.nil? raise ArgumentError, "gem #{over_name} is not activated" if over.nil? last_gem_path = Gem::Path.path(gem.full_gem_path).add(gem.require_paths.last) over_paths = over.require_paths.map do |path| Gem::Path.path(over.full_gem_path).add(path).to_s end over_paths.each do |path| $LOAD_PATH.delete path end gem = $LOAD_PATH.index(last_gem_path) + 1 $LOAD_PATH.insert(gem, *over_paths) end
Safely read a file in binary mode on all platforms.
# File lib/rubygems.rb, line 869 def self.read_binary(path) File.open path, binary_mode do |f| f.read end end
Refresh source_index from disk and clear searcher.
# File lib/rubygems.rb, line 860 def self.refresh Gem::Specification.reset @source_index = nil @searcher = nil end
Full path to libfile in gemname. Searches for the latest gem unless requirements is given.
# File lib/rubygems.rb, line 901 def self.required_location(gemname, libfile, *requirements) requirements = Gem::Requirement.default if requirements.empty? matches = Gem::Specification.find_all_by_name gemname, *requirements return nil if matches.empty? spec = matches.last spec.require_paths.each do |path| result = Gem::Path.path(spec.full_gem_path).add(path, libfile) return result if result.exist? end nil end
The path to the running Ruby interpreter.
# File lib/rubygems.rb, line 920 def self.ruby if @ruby.nil? then @ruby = File.join(ConfigMap[:bindir], "#{ConfigMap[:ruby_install_name]}#{ConfigMap[:EXEEXT]}") @ruby = "\"#{@ruby}\"" if @ruby =~ /\s/ end @ruby end
Allows setting path to ruby. This method is available when requiring ‘rubygems/test_case’
# File lib/rubygems/test_case.rb, line 63 def self.ruby= ruby @ruby = ruby end
A wrapper around RUBY_ENGINE const that may not be defined
# File lib/rubygems/defaults.rb, line 117 def self.ruby_engine if defined? RUBY_ENGINE then RUBY_ENGINE else 'ruby' end end
A Gem::Version for the currently running ruby.
# File lib/rubygems.rb, line 957 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
The GemPathSearcher object used to search for matching installed gems.
# File lib/rubygems.rb, line 973 def self.searcher @searcher ||= Gem::GemPathSearcher.new end
Allows setting the gem path searcher. This method is available when requiring ‘rubygems/test_case’
# File lib/rubygems/test_case.rb, line 37 def self.searcher=(searcher) @searcher = searcher end
Returns the Gem::SourceIndex of specifications that are in the Gem.path
# File lib/rubygems.rb, line 980 def self.source_index @@source_index ||= Gem::Deprecate.skip_during do SourceIndex.new Gem::Specification.dirs end end
Allows setting the default SourceIndex. This method is available when requiring ‘rubygems/test_case’
# File lib/rubygems/test_case.rb, line 45 def self.source_index=(si) raise "This method is not supported" Gem::Specification.reset if si # HACK @@source_index = si end
Returns an Array of sources to fetch remote gems from. If the sources list is empty, attempts to load the “sources” gem, then uses default_sources if it is not installed.
# File lib/rubygems.rb, line 991 def self.sources @sources ||= default_sources end
Need to be able to set the sources without calling Gem.sources.replace since that would cause an infinite loop.
# File lib/rubygems.rb, line 999 def self.sources= new_sources @sources = new_sources end
Is SSL (used by the signing commands) available on this platform?
# File lib/rubygems/gem_openssl.rb, line 19 def ssl_available? @ssl_available end
Glob pattern for require-able path suffixes.
# File lib/rubygems.rb, line 1006 def self.suffix_pattern @suffix_pattern ||= "{#{suffixes.join(',')}}" end
Suffixes for require-able paths.
# File lib/rubygems.rb, line 1019 def self.suffixes @suffixes ||= ['', '.rb', *%(DLEXT DLEXT2).map { |key| val = RbConfig::CONFIG[key] next unless val and not val.empty? ".#{val}" } ].compact.uniq end
Prints the amount of time the supplied block takes to run using the debug UI output.
# File lib/rubygems.rb, line 1034 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 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 lib/rubygems.rb, line 200 def self.try_activate path # TODO: deprecate when 1.9.3 comes out. # finds the _latest_ version... regardless of loaded specs and their deps # TODO: use find_all and bork if ambiguous spec = Gem::Specification.find_by_path path return false unless spec begin spec.activate rescue Gem::LoadError # this could fail due to gem dep collisions, go lax Gem::Specification.find_by_name(spec.name).activate end return true end
Lazily loads DefaultUserInteraction and returns the default UI.
# File lib/rubygems.rb, line 1049 def self.ui require 'rubygems/user_interaction' Gem::DefaultUserInteraction.ui end
# File lib/rubygems.rb, line 249 def self.unresolved_deps @unresolved_deps ||= Hash.new { |h, n| h[n] = Gem::Dependency.new n } end
Use the home and paths values for Gem.dir and Gem.path. Used mainly by the unit tests to provide environment isolation.
# File lib/rubygems.rb, line 1059 def self.use_paths(home, *paths) paths = nil if paths == [nil] paths = paths.first if Array === Array(paths).first self.paths = { "GEM_HOME" => home, "GEM_PATH" => paths } # TODO: self.paths = home, paths end
Path for gems in the user’s home directory
# File lib/rubygems/defaults.rb, line 56 def self.user_dir File.join Gem.user_home, '.gem', ruby_engine, ConfigMap[:ruby_version] end
The home directory for the user.
# File lib/rubygems.rb, line 1069 def self.user_home @user_home ||= find_home end
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