# -*- ruby -*-
#--
# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
# All rights reserved.
# See LICENSE.txt for permissions.
#++
gem_disabled = !defined? Gem
require 'rubygems/defaults'
require 'thread'
require 'etc'
##
# RubyGems is the Ruby standard for publishing and managing third party
# libraries.
#
# For user documentation, see:
#
# * <tt>gem help</tt> and <tt>gem help [command]</tt>
# * {RubyGems User Guide}[http://docs.rubygems.org/read/book/1]
# * {Frequently Asked Questions}[http://docs.rubygems.org/read/book/3]
#
# For gem developer documentation see:
#
# * {Creating Gems}[http://docs.rubygems.org/read/chapter/5]
# * Gem::Specification
# * Gem::Version for version dependency notes
#
# Further RubyGems documentation can be found at:
#
# * {RubyGems API}[http://rubygems.rubyforge.org/rdoc] (also available from
# <tt>gem server</tt>)
# * {RubyGems Bookshelf}[http://rubygem.org]
#
# == 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
# 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, 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/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.
#
# == Bugs
#
# You can submit bugs to the
# {RubyGems bug tracker}[http://rubyforge.org/tracker/?atid=575&group_id=126]
# on RubyForge
#
# == 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 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
#
# (If your name is missing, PLEASE let us know!)
#
# Thanks!
#
# -The RubyGems Team
module Gem
RubyGemsVersion = VERSION = '1.3.7'
##
# Raised when RubyGems is unable to load or activate a gem. Contains the
# name and version requirements of the gem that either conflicts with
# already activated gems or that RubyGems is otherwise unable to activate.
class LoadError < ::LoadError
# Name of gem
attr_accessor :name
# Version requirement of gem
attr_accessor :version_requirement
end
##
# Configuration settings from ::RbConfig
ConfigMap = {} unless defined?(ConfigMap)
require 'rbconfig'
ConfigMap.merge!(
:EXEEXT => RbConfig::CONFIG["EXEEXT"],
:RUBY_SO_NAME => RbConfig::CONFIG["RUBY_SO_NAME"],
:arch => RbConfig::CONFIG["arch"],
:bindir => RbConfig::CONFIG["bindir"],
:datadir => RbConfig::CONFIG["datadir"],
:libdir => RbConfig::CONFIG["libdir"],
:ruby_install_name => RbConfig::CONFIG["ruby_install_name"],
:ruby_version => RbConfig::CONFIG["ruby_version"],
:rubylibprefix => RbConfig::CONFIG["rubylibprefix"],
:sitedir => RbConfig::CONFIG["sitedir"],
:sitelibdir => RbConfig::CONFIG["sitelibdir"],
:vendordir => RbConfig::CONFIG["vendordir"] ,
:vendorlibdir => RbConfig::CONFIG["vendorlibdir"]
)
##
# Default directories in a gem repository
DIRECTORIES = %w[cache doc gems specifications] unless defined?(DIRECTORIES)
# :stopdoc:
MUTEX = Mutex.new
RubyGemsPackageVersion = VERSION
# :startdoc:
##
# An Array of Regexps that match windows ruby platforms.
WIN_PATTERNS = [
/bccwin/i,
/cygwin/i,
/djgpp/i,
/mingw/i,
/mswin/i,
/wince/i,
]
@@source_index = nil
@@win_platform = nil
@configuration = nil
@loaded_specs = {}
@loaded_stacks = {}
@platforms = []
@ruby = nil
@sources = []
@post_install_hooks ||= []
@post_uninstall_hooks ||= []
@pre_uninstall_hooks ||= []
@pre_install_hooks ||= []
##
# Activates an installed gem matching +gem+. The gem must satisfy
# +version_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 +gem+ 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.
def self.activate(gem, *version_requirements)
if version_requirements.last.is_a?(Hash)
options = version_requirements.pop
else
options = {}
end
sources = options[:sources] || []
if version_requirements.empty? then
version_requirements = Gem::Requirement.default
end
unless gem.respond_to?(:name) and
gem.respond_to?(:requirement) then
gem = Gem::Dependency.new(gem, version_requirements)
end
matches = Gem.source_index.find_name(gem.name, gem.requirement)
report_activate_error(gem) if matches.empty?
if @loaded_specs[gem.name] then
# This gem is already loaded. If the currently loaded gem is not in the
# list of candidate gems, then we have a version conflict.
existing_spec = @loaded_specs[gem.name]
unless matches.any? { |spec| spec.version == existing_spec.version } then
sources_message = sources.map { |spec| spec.full_name }
stack_message = @loaded_stacks[gem.name].map { |spec| spec.full_name }
msg = "can't activate #{gem} for #{sources_message.inspect}, "
msg << "already activated #{existing_spec.full_name} for "
msg << "#{stack_message.inspect}"
e = Gem::LoadError.new msg
e.name = gem.name
e.version_requirement = gem.requirement
raise e
end
return false
end
# new load
spec = matches.last
return false if spec.loaded?
spec.loaded = true
@loaded_specs[spec.name] = spec
@loaded_stacks[spec.name] = sources.dup
# Load dependent gems first
spec.runtime_dependencies.each do |dep_gem|
activate dep_gem, :sources => [spec, *sources]
end
# bin directory must come before library directories
spec.require_paths.unshift spec.bindir if spec.bindir
require_paths = spec.require_paths.map do |path|
File.join spec.full_gem_path, path
end
# gem directories must come after -I and ENV['RUBYLIB']
insert_index = load_path_insert_index
if insert_index then
# gem directories must come after -I and ENV['RUBYLIB']
$LOAD_PATH.insert(insert_index, *require_paths)
else
# we are probably testing in core, -I and RUBYLIB don't apply
$LOAD_PATH.unshift(*require_paths)
end
return true
end
##
# An Array of all possible load paths for all versions of all gems in the
# Gem installation.
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
##
# Return all the partial paths in +gemdir+.
def self.all_partials(gemdir)
Dir[File.join(gemdir, 'gems/*')]
end
private_class_method :all_partials
##
# See if a given gem is available.
def self.available?(gem, *requirements)
requirements = Gem::Requirement.default if requirements.empty?
unless gem.respond_to?(:name) and
gem.respond_to?(:requirement) then
gem = Gem::Dependency.new gem, requirements
end
!Gem.source_index.search(gem).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. +version_requirements+ allows
# you to specify specific gem versions.
def self.bin_path(name, exec_name = nil, *version_requirements)
version_requirements = Gem::Requirement.default if
version_requirements.empty?
spec = Gem.source_index.find_name(name, version_requirements).last
raise Gem::GemNotFoundException,
"can't find gem #{name} (#{version_requirements})" unless spec
exec_name ||= spec.default_executable
unless exec_name
msg = "no default executable for #{spec.full_name}"
raise Gem::Exception, msg
end
unless spec.executables.include? exec_name
msg = "can't find executable #{exec_name} for #{spec.full_name}"
raise Gem::Exception, msg
end
File.join(spec.full_gem_path, spec.bindir, exec_name)
end
##
# The mode needed to read a file as straight binary.
def self.binary_mode
'rb'
end
##
# The path where gem executables are to be installed.
def self.bindir(install_dir=Gem.dir)
return File.join(install_dir, 'bin') unless
install_dir.to_s == Gem.default_dir
Gem.default_bindir
end
##
# Reset the +dir+ and +path+ values. The next time +dir+ or +path+
# is requested, the values will be calculated from scratch. This is
# mainly used by the unit tests to provide test isolation.
def self.clear_paths
@gem_home = nil
@gem_path = nil
@user_home = nil
@@source_index = nil
MUTEX.synchronize do
@searcher = nil
end
end
##
# The path to standard location of the user's .gemrc file.
def self.config_file
File.join Gem.user_home, '.gemrc'
end
##
# The standard configuration object for gems.
def self.configuration
@configuration ||= Gem::ConfigFile.new []
end
##
# Use the given configuration object (which implements the ConfigFile
# protocol) as the standard configuration object.
def self.configuration=(config)
@configuration = config
end
##
# The path the the data directory specified by the gem name. If the
# package is not available as a gem, return nil.
def self.datadir(gem_name)
spec = @loaded_specs[gem_name]
return nil if spec.nil?
File.join(spec.full_gem_path, 'data', gem_name)
end
##
# A Zlib::Deflate.deflate wrapper
def self.deflate(data)
require 'zlib'
Zlib::Deflate.deflate data
end
##
# The path where gems are to be installed.
def self.dir
@gem_home ||= nil
set_home(ENV['GEM_HOME'] || Gem.configuration.home || default_dir) unless @gem_home
@gem_home
end
##
# Expand each partial gem path with each of the required paths specified
# in the Gem spec. Each expanded path is yielded.
def self.each_load_path(partials)
partials.each do |gp|
base = File.basename(gp)
specfn = File.join(dir, "specifications", base + ".gemspec")
if File.exist?(specfn)
spec = eval(File.read(specfn))
spec.require_paths.each do |rp|
yield(File.join(gp, rp))
end
else
filename = File.join(gp, 'lib')
yield(filename) if File.exist?(filename)
end
end
end
private_class_method :each_load_path
##
# 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.
def self.ensure_gem_subdirectories(gemdir)
require 'fileutils'
Gem::DIRECTORIES.each do |filename|
fn = File.join gemdir, filename
FileUtils.mkdir_p fn rescue nil unless File.exist? fn
end
end
##
# Returns a list of paths matching +file+ 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
#
# find_files search $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.
def self.find_files(path)
load_path_files = $LOAD_PATH.map do |load_path|
files = Dir["#{File.expand_path path, load_path}#{Gem.suffix_pattern}"]
files.select do |load_path_file|
File.file? load_path_file.untaint
end
end.flatten
specs = searcher.find_all path
specs_files = specs.map do |spec|
searcher.matching_files spec, path
end.flatten
(load_path_files + specs_files).flatten.uniq
end
##
# Finds the user's home directory.
#--
# Some comments from the ruby-talk list regarding finding the home
# directory:
#
# I have HOME, USERPROFILE and HOMEDRIVE + HOMEPATH. Ruby seems
# to be depending on HOME in those code samples. I propose that
# it should fallback to USERPROFILE and HOMEDRIVE + HOMEPATH (at
# least on Win32).
def self.find_home
unless RUBY_VERSION > '1.9' then
['HOME', 'USERPROFILE'].each do |homekey|
return ENV[homekey] if ENV[homekey]
end
if ENV['HOMEDRIVE'] && ENV['HOMEPATH'] then
return "#{ENV['HOMEDRIVE']}#{ENV['HOMEPATH']}"
end
end
File.expand_path "~"
rescue
if File::ALT_SEPARATOR then
"C:/"
else
"/"
end
end
private_class_method :find_home
##
# Zlib::GzipReader wrapper that unzips +data+.
def self.gunzip(data)
require 'stringio'
require 'zlib'
data = StringIO.new data
Zlib::GzipReader.new(data).read
end
##
# Zlib::GzipWriter wrapper that zips +data+.
def self.gzip(data)
require 'stringio'
require 'zlib'
zipped = StringIO.new
Zlib::GzipWriter.wrap zipped do |io| io.write data end
zipped.string
end
##
# A Zlib::Inflate#inflate wrapper
def self.inflate(data)
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.
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
##
# Return only the latest partial paths in the given +gemdir+.
def self.latest_partials(gemdir)
latest = {}
all_partials(gemdir).each do |gp|
base = File.basename(gp)
if base =~ /(.*)-((\d+\.)*\d+)/ then
name, version = $1, $2
ver = Gem::Version.new(version)
if latest[name].nil? || ver > latest[name][0]
latest[name] = [ver, gp]
end
end
end
latest.collect { |k,v| v[1] }
end
private_class_method :latest_partials
##
# 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.
def self.load_path_insert_index
index = $LOAD_PATH.index ConfigMap[:sitelibdir]
$LOAD_PATH.each_with_index do |path, i|
if path.instance_variables.include?(:@gem_prelude_index) or
path.instance_variables.include?('@gem_prelude_index') then
index = i
break
end
end
index
end
##
# The file name and line number of the caller of the caller of this method.
def self.location_of_caller
caller[1] =~ /(.*?):(\d+).*?$/i
file = $1
lineno = $2.to_i
[file, lineno]
end
##
# The version of the Marshal format for your Ruby.
def self.marshal_version
"#{Marshal::MAJOR_VERSION}.#{Marshal::MINOR_VERSION}"
end
##
# Array of paths to search for Gems.
def self.path
@gem_path ||= nil
unless @gem_path then
paths = [ENV['GEM_PATH'] || Gem.configuration.path || default_path]
if defined?(APPLE_GEM_HOME) and not ENV['GEM_PATH'] then
paths << APPLE_GEM_HOME
end
set_paths paths.compact.join(File::PATH_SEPARATOR)
end
@gem_path
end
##
# Set array of platforms this RubyGems supports (primarily for testing).
def self.platforms=(platforms)
@platforms = platforms
end
##
# Array of platforms this RubyGems supports.
def self.platforms
@platforms ||= []
if @platforms.empty?
@platforms = [Gem::Platform::RUBY, Gem::Platform.local]
end
@platforms
end
##
# Adds a post-install hook that will be passed an Gem::Installer instance
# when Gem::Installer#install is called
def self.post_install(&hook)
@post_install_hooks << hook
end
##
# Adds a post-uninstall hook that will be passed a Gem::Uninstaller instance
# and the spec that was uninstalled when Gem::Uninstaller#uninstall is
# called
def self.post_uninstall(&hook)
@post_uninstall_hooks << hook
end
##
# Adds a pre-install hook that will be passed an Gem::Installer instance
# when Gem::Installer#install is called
def self.pre_install(&hook)
@pre_install_hooks << hook
end
##
# Adds a pre-uninstall hook that will be passed an Gem::Uninstaller instance
# and the spec that will be uninstalled when Gem::Uninstaller#uninstall is
# called
def self.pre_uninstall(&hook)
@pre_uninstall_hooks << hook
end
##
# The directory prefix this RubyGems was installed at.
def self.prefix
dir = File.dirname File.expand_path(__FILE__)
prefix = File.dirname dir
if prefix == File.expand_path(ConfigMap[:sitelibdir]) or
prefix == File.expand_path(ConfigMap[:libdir]) or
'lib' != File.basename(dir) then
nil
else
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.
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 = File.join gem.full_gem_path, gem.require_paths.last
over_paths = over.require_paths.map do |path|
File.join over.full_gem_path, path
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
##
# Refresh source_index from disk and clear searcher.
def self.refresh
source_index.refresh!
MUTEX.synchronize do
@searcher = nil
end
end
##
# Safely read a file in binary mode on all platforms.
def self.read_binary(path)
File.open path, binary_mode do |f| f.read end
end
##
# Report a load error during activation. The message of load error
# depends on whether it was a version mismatch or if there are not gems of
# any version by the requested name.
def self.report_activate_error(gem)
matches = Gem.source_index.find_name(gem.name)
if matches.empty? then
error = Gem::LoadError.new(
"Could not find RubyGem #{gem.name} (#{gem.requirement})\n")
else
error = Gem::LoadError.new(
"RubyGem version error: " +
"#{gem.name}(#{matches.first.version} not #{gem.requirement})\n")
end
error.name = gem.name
error.version_requirement = gem.requirement
raise error
end
private_class_method :report_activate_error
##
# Full path to +libfile+ in +gemname+. Searches for the latest gem unless
# +requirements+ is given.
def self.required_location(gemname, libfile, *requirements)
requirements = Gem::Requirement.default if requirements.empty?
matches = Gem.source_index.find_name gemname, requirements
return nil if matches.empty?
spec = matches.last
spec.require_paths.each do |path|
result = File.join spec.full_gem_path, path, libfile
return result if File.exist? result
end
nil
end
##
# The path to the running Ruby interpreter.
def self.ruby
if @ruby.nil? then
@ruby = File.join(ConfigMap[:bindir],
ConfigMap[:ruby_install_name])
@ruby << ConfigMap[:EXEEXT]
# escape string in case path to ruby executable contain spaces.
@ruby.sub!(/.*\s.*/m, '"\&"')
end
@ruby
end
##
# A Gem::Version for the currently running ruby.
def self.ruby_version
return @ruby_version if defined? @ruby_version
version = RUBY_VERSION.dup
if defined?(RUBY_PATCHLEVEL) && RUBY_PATCHLEVEL != -1 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.
def self.searcher
MUTEX.synchronize do
@searcher ||= Gem::GemPathSearcher.new
end
end
##
# Set the Gem home directory (as reported by Gem.dir).
def self.set_home(home)
home = home.gsub File::ALT_SEPARATOR, File::SEPARATOR if File::ALT_SEPARATOR
@gem_home = home
end
private_class_method :set_home
##
# Set the Gem search path (as reported by Gem.path).
def self.set_paths(gpaths)
if gpaths
@gem_path = gpaths.split(File::PATH_SEPARATOR)
if File::ALT_SEPARATOR then
@gem_path.map! do |path|
path.gsub File::ALT_SEPARATOR, File::SEPARATOR
end
end
@gem_path << Gem.dir
else
# TODO: should this be Gem.default_path instead?
@gem_path = [Gem.dir]
end
@gem_path.uniq!
end
private_class_method :set_paths
##
# Returns the Gem::SourceIndex of specifications that are in the Gem.path
def self.source_index
@@source_index ||= SourceIndex.from_installed_gems
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.
def self.sources
if @sources.empty? then
begin
gem 'sources', '> 0.0.1'
require 'sources'
rescue LoadError
@sources = default_sources
end
end
@sources
end
##
# Need to be able to set the sources without calling
# Gem.sources.replace since that would cause an infinite loop.
def self.sources=(new_sources)
@sources = new_sources
end
##
# Glob pattern for require-able path suffixes.
def self.suffix_pattern
@suffix_pattern ||= "{#{suffixes.join(',')}}"
end
##
# Suffixes for require-able paths.
def self.suffixes
['', '.rb', '.rbw', '.so', '.bundle', '.dll', '.sl', '.jar']
end
##
# Prints the amount of time the supplied block takes to run using the debug
# UI output.
def self.time(msg, width = 0, display = Gem.configuration.verbose)
now = Time.now
value = yield
elapsed = Time.now - now
ui.say "%2$*1$s: %3$3.3fs" % [-width, msg, elapsed] if display
value
end
##
# Lazily loads DefaultUserInteraction and returns the default UI.
def self.ui
require 'rubygems/user_interaction'
Gem::DefaultUserInteraction.ui
end
##
# Use the +home+ and +paths+ values for Gem.dir and Gem.path. Used mainly
# by the unit tests to provide environment isolation.
def self.use_paths(home, paths=[])
clear_paths
set_home(home) if home
set_paths(paths.join(File::PATH_SEPARATOR)) if paths
end
##
# The home directory for the user.
def self.user_home
@user_home ||= find_home
end
##
# Is this a windows platform?
def self.win_platform?
if @@win_platform.nil? then
@@win_platform = !!WIN_PATTERNS.find { |r| RUBY_PLATFORM =~ r }
end
@@win_platform
end
##
# Find all 'rubygems_plugin' files and load them
def self.load_plugins
plugins = Gem.find_files 'rubygems_plugin'
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
class << self
##
# Hash of loaded Gem::Specification keyed by name
attr_reader :loaded_specs
##
# The list of hooks to be run before Gem::Install#install does any work
attr_reader :post_install_hooks
##
# The list of hooks to be run before Gem::Uninstall#uninstall does any
# work
attr_reader :post_uninstall_hooks
##
# The list of hooks to be run after Gem::Install#install is finished
attr_reader :pre_install_hooks
##
# The list of hooks to be run after Gem::Uninstall#uninstall is finished
attr_reader :pre_uninstall_hooks
# :stopdoc:
alias cache source_index # an alias for the old name
# :startdoc:
end
##
# Location of Marshal quick gemspecs on remote repositories
MARSHAL_SPEC_DIR = "quick/Marshal.#{Gem.marshal_version}/"
##
# Location of legacy YAML quick gemspecs on remote repositories
YAML_SPEC_DIR = 'quick/'
end
module Kernel
undef gem if respond_to? :gem # defined in gem_prelude.rb on 1.9
##
# Use Kernel#gem to activate a specific version of +gem_name+.
#
# +version_requirements+ is a list of version requirements that the
# specified gem must match, most commonly "= example.version.number". See
# Gem::Requirement for how to specify a version requirement.
#
# If you will be activating the latest version of a gem, there is no need to
# call Kernel#gem, Kernel#require will do the right thing for you.
#
# Kernel#gem returns true if the gem was activated, otherwise false. If the
# gem could not be found, didn't match the version requirements, or a
# different version was already activated, an exception will be raised.
#
# Kernel#gem should be called *before* any require statements (otherwise
# RubyGems may load a conflicting library version).
#
# In older RubyGems versions, the environment variable GEM_SKIP could be
# used to skip activation of specified gems, for example to test out changes
# that haven't been installed yet. Now RubyGems defers to -I and the
# RUBYLIB environment variable to skip activation of a gem.
#
# Example:
#
# GEM_SKIP=libA:libB ruby -I../libA -I../libB ./mycode.rb
def gem(gem_name, *version_requirements) # :doc:
skip_list = (ENV['GEM_SKIP'] || "").split(/:/)
raise Gem::LoadError, "skipping #{gem_name}" if skip_list.include? gem_name
Gem.activate(gem_name, *version_requirements)
end
private :gem
end
##
# Return the path to the data directory associated with the named package. If
# the package is loaded as a gem, return the gem specific data directory.
# Otherwise return a path to the share area as define by
# "#{ConfigMap[:datadir]}/#{package_name}".
def RbConfig.datadir(package_name)
Gem.datadir(package_name) ||
File.join(Gem::ConfigMap[:datadir], package_name)
end
require 'rubygems/exceptions'
require 'rubygems/version'
require 'rubygems/requirement'
require 'rubygems/dependency'
require 'rubygems/gem_path_searcher' # Needed for Kernel#gem
require 'rubygems/source_index' # Needed for Kernel#gem
require 'rubygems/platform'
require 'rubygems/builder' # HACK: Needed for rake's package task.
begin
##
# Defaults the operating system (or packager) wants to provide for RubyGems.
require 'rubygems/defaults/operating_system'
rescue LoadError
end
if defined?(RUBY_ENGINE) then
begin
##
# Defaults the ruby implementation wants to provide for RubyGems
require "rubygems/defaults/#{RUBY_ENGINE}"
rescue LoadError
end
end
require 'rubygems/config_file'
##
# Enables the require hook for RubyGems.
#
# Ruby 1.9 allows --disable-gems, so we require it when we didn't detect a Gem
# constant at rubygems.rb load time.
require 'rubygems/custom_require' if gem_disabled or RUBY_VERSION < '1.9'
Gem.clear_paths
Gem.load_plugins
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