Class: Gem::Specification

# File 'lib/rubygems/specification.rb', line 896

def self.all=(specs)
  @@stubs_by_name = specs.group_by(&:name)
  @@all = @@stubs = specs
end

# File 'lib/rubygems/specification.rb', line 929

def self.dirs
  @@dirs ||= Gem.path.collect do |dir|
    File.join dir.dup.tap(&Gem::UNTAINT), "specifications"
  end
end

# File 'lib/rubygems/specification.rb', line 939

def self.dirs=(dirs)
  self.reset

  @@dirs = Array(dirs).map { |dir| File.join dir, "specifications" }
end

# File 'lib/rubygems/specification.rb', line 755

def self._clear_load_cache # :nodoc:
  LOAD_CACHE_MUTEX.synchronize do
    LOAD_CACHE.clear
  end
end

# File 'lib/rubygems/specification.rb', line 1087

def self._latest_specs(specs, prerelease = false) # :nodoc:
  result = Hash.new { |h,k| h[k] = {} }
  native = {}

  specs.reverse_each do |spec|
    next if spec.version.prerelease? unless prerelease

    native[spec.name] = spec.version if spec.platform == Gem::Platform::RUBY
    result[spec.name][spec.platform] = spec
  end

  result.map(&:last).map(&:values).flatten.reject do |spec|
    minimum = native[spec.name]
    minimum && spec.version < minimum
  end.sort_by{ |tup| tup.name }
end

# File 'lib/rubygems/specification.rb', line 1262

def self._load(str)
  Gem.load_yaml

  array = Marshal.load str

  spec = Gem::Specification.new
  spec.instance_variable_set :@specification_version, array[1]

  current_version = CURRENT_SPECIFICATION_VERSION

  field_count = if spec.specification_version > current_version
                  spec.instance_variable_set :@specification_version,
                                             current_version
                  MARSHAL_FIELDS[current_version]
                else
                  MARSHAL_FIELDS[spec.specification_version]
                end

  if array.size < field_count
    raise TypeError, "invalid Gem::Specification format #{array.inspect}"
  end

  # Cleanup any YAML::PrivateType. They only show up for an old bug
  # where nil => null, so just convert them to nil based on the type.

  array.map! { |e| e.kind_of?(YAML::PrivateType) ? nil : e }

  spec.instance_variable_set :@rubygems_version,          array[0]
  # spec version
  spec.instance_variable_set :@name,                      array[2]
  spec.instance_variable_set :@version,                   array[3]
  spec.date =                                             array[4]
  spec.instance_variable_set :@summary,                   array[5]
  spec.instance_variable_set :@required_ruby_version,     array[6]
  spec.instance_variable_set :@required_rubygems_version, array[7]
  spec.instance_variable_set :@original_platform,         array[8]
  spec.instance_variable_set :@dependencies,              array[9]
  # offset due to rubyforge_project removal
  spec.instance_variable_set :@email,                     array[11]
  spec.instance_variable_set :@authors,                   array[12]
  spec.instance_variable_set :@description,               array[13]
  spec.instance_variable_set :@homepage,                  array[14]
  spec.instance_variable_set :@has_rdoc,                  array[15]
  spec.instance_variable_set :@new_platform,              array[16]
  spec.instance_variable_set :@platform,                  array[16].to_s
  spec.instance_variable_set :@license,                   array[17]
  spec.instance_variable_set :@metadata,                  array[18]
  spec.instance_variable_set :@loaded,                    false
  spec.instance_variable_set :@activated,                 false

  spec
end

# File 'lib/rubygems/specification.rb', line 855

def self._resort!(specs) # :nodoc:
  specs.sort! do |a, b|
    names = a.name <=> b.name
    next names if names.nonzero?
    b.version <=> a.version
  end
end

# File 'lib/rubygems/specification.rb', line 904

def self.all_names
  self._all.map(&:full_name)
end

# File 'lib/rubygems/specification.rb', line 913

def self.array_attributes
  @@array_attributes.dup
end

# File 'lib/rubygems/specification.rb', line 922

def self.attribute_names
  @@attributes.dup
end

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

def self.default_stubs(pattern = "*.gemspec")
  base_dir = Gem.default_dir
  gems_dir = File.join base_dir, "gems"
  gemspec_stubs_in(Gem.default_specifications_dir, pattern) do |path|
    Gem::StubSpecification.default_gemspec_stub(path, base_dir, gems_dir)
  end
end

# File 'lib/rubygems/specification.rb', line 951

def self.each
  return enum_for(:each) unless block_given?

  self._all.each do |x|
    yield x
  end
end

# File 'lib/rubygems/specification.rb', line 761

def self.each_gemspec(dirs) # :nodoc:
  dirs.each do |dir|
    Gem::Util.glob_files_in_dir("*.gemspec", dir).each do |path|
      yield path.tap(&Gem::UNTAINT)
    end
  end
end

# File 'lib/rubygems/specification.rb', line 800

def self.each_spec(dirs) # :nodoc:
  each_gemspec(dirs) do |path|
    spec = self.load path
    yield spec if spec
  end
end

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

def self.find_active_stub_by_path(path)
  stub = @@active_stub_with_requirable_file[path] ||= (stubs.find do |s|
    s.activated? and s.contains_requirable_file? path
  end || NOT_FOUND)
  stub.this
end

# File 'lib/rubygems/specification.rb', line 973

def self.find_all_by_full_name(full_name)
  stubs.select {|s| s.full_name == full_name }.map(&:to_spec)
end

# File 'lib/rubygems/specification.rb', line 962

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

  # TODO: maybe try: find_all { |s| spec === dep }

  Gem::Dependency.new(name, *requirements).matching_specs
end

# File 'lib/rubygems/specification.rb', line 981

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

  # TODO: maybe try: find { |s| spec === dep }

  Gem::Dependency.new(name, *requirements).to_spec
end

# File 'lib/rubygems/specification.rb', line 992

def self.find_by_path(path)
  path = path.dup.freeze
  spec = @@spec_with_requirable_file[path] ||= (stubs.find do |s|
    next unless Gem::BundlerVersionFinder.compatible?(s)
    s.contains_requirable_file? path
  end || NOT_FOUND)
  spec.to_spec
end

# File 'lib/rubygems/specification.rb', line 1024

def self.find_in_unresolved(path)
  # TODO: do we need these?? Kill it
  specs = unresolved_deps.values.map { |dep| dep.to_specs }.flatten

  specs.find_all { |spec| spec.contains_requirable_file? path }
end

# File 'lib/rubygems/specification.rb', line 1035

def self.find_in_unresolved_tree(path)
  specs = unresolved_deps.values.map { |dep| dep.to_specs }.flatten

  specs.each do |spec|
    spec.traverse do |from_spec, dep, to_spec, trail|
      if to_spec.has_conflicts? || to_spec.conficts_when_loaded_with?(trail)
        :next
      else
        return trail.reverse if to_spec.contains_requirable_file? path
      end
    end
  end

  []
end

# File 'lib/rubygems/specification.rb', line 1005

def self.find_inactive_by_path(path)
  stub = stubs.find do |s|
    next if s.activated?
    next unless Gem::BundlerVersionFinder.compatible?(s)
    s.contains_requirable_file? path
  end
  stub && stub.to_spec
end

# File 'lib/rubygems/specification.rb', line 1059

def self.from_yaml(input)
  Gem.load_yaml

  input = normalize_yaml_input input
  spec = Gem::SafeYAML.safe_load input

  if spec && spec.class == FalseClass
    raise Gem::EndOfYAMLException
  end

  unless Gem::Specification === spec
    raise Gem::Exception, "YAML data doesn't evaluate to gem specification"
  end

  spec.specification_version ||= NONEXISTENT_SPECIFICATION_VERSION
  spec.reset_nil_attributes_to_default

  spec
end

# File 'lib/rubygems/specification.rb', line 769

def self.gemspec_stubs_in(dir, pattern)
  Gem::Util.glob_files_in_dir(pattern, dir).map { |path| yield path }.select(&:valid?)
end

# File 'lib/rubygems/specification.rb', line 774

def self.installed_stubs(dirs, pattern)
  map_stubs(dirs, pattern) do |path, base_dir, gems_dir|
    Gem::StubSpecification.gemspec_stub(path, base_dir, gems_dir)
  end
end

# File 'lib/rubygems/specification.rb', line 1083

def self.latest_specs(prerelease = false)
  _latest_specs Gem::Specification._all, prerelease
end

# File 'lib/rubygems/specification.rb', line 1107

def self.load(file)
  return unless file

  _spec = LOAD_CACHE_MUTEX.synchronize { LOAD_CACHE[file] }
  return _spec if _spec

  file = file.dup.tap(&Gem::UNTAINT)
  return unless File.file?(file)

  code = File.read file, :mode => 'r:UTF-8:-'

  code.tap(&Gem::UNTAINT)

  begin
    _spec = eval code, binding, file

    if Gem::Specification === _spec
      _spec.loaded_from = File.expand_path file.to_s
      LOAD_CACHE_MUTEX.synchronize do
        prev = LOAD_CACHE[file]
        if prev
          _spec = prev
        else
          LOAD_CACHE[file] = _spec
        end
      end
      return _spec
    end

    warn "[#{file}] isn't a Gem::Specification (#{_spec.class} instead)."
  rescue SignalException, SystemExit
    raise
  rescue SyntaxError, Exception => e
    warn "Invalid gemspec in [#{file}]: #{e}"
  end

  nil
end

# File 'lib/rubygems/specification.rb', line 866

def self.load_defaults
  each_spec([Gem.default_specifications_dir]) do |spec|
    # #load returns nil if the spec is bad, so we just ignore
    # it at this stage
    Gem.register_default_spec(spec)
  end
end

# File 'lib/rubygems/specification.rb', line 781

def self.map_stubs(dirs, pattern) # :nodoc:
  dirs.flat_map do |dir|
    base_dir = File.dirname dir
    gems_dir = File.join base_dir, "gems"
    gemspec_stubs_in(dir, pattern) { |path| yield path, base_dir, gems_dir }
  end
end

# File 'lib/rubygems/specification.rb', line 1149

def self.non_nil_attributes
  @@non_nil_attributes.dup
end

# File 'lib/rubygems/specification.rb', line 1156

def self.normalize_yaml_input(input)
  result = input.respond_to?(:read) ? input.read : input
  result = "--- " + result unless result =~ /\A--- /
  result = result.dup
  result.gsub!(/ !!null \n/, " \n")
  # date: 2011-04-26 00:00:00.000000000Z
  # date: 2011-04-26 00:00:00.000000000 Z
  result.gsub!(/^(date: \d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d+?)Z/, '\1 Z')
  result
end

# File 'lib/rubygems/specification.rb', line 1174

def self.outdated
  outdated_and_latest_version.map { |local, _| local.name }
end

# File 'lib/rubygems/specification.rb', line 1185

def self.outdated_and_latest_version
  return enum_for __method__ unless block_given?

  # TODO: maybe we should switch to rubygems' version service?
  fetcher = Gem::SpecFetcher.fetcher

  latest_specs(true).each do |local_spec|
    dependency =
      Gem::Dependency.new local_spec.name, ">= #{local_spec.version}"

    remotes, = fetcher.search_for_dependency dependency
    remotes  = remotes.map { |n, _| n.version }

    latest_remote = remotes.sort.last

    yield [local_spec, latest_remote] if
      latest_remote and local_spec.version < latest_remote
  end

  nil
end

# File 'lib/rubygems/specification.rb', line 1210

def self.required_attribute?(name)
  @@required_attributes.include? name.to_sym
end

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

def self.required_attributes
  @@required_attributes.dup
end

# File 'lib/rubygems/specification.rb', line 1225

def self.reset
  @@dirs = nil
  Gem.pre_reset_hooks.each { |hook| hook.call }
  @@all = nil
  @@stubs = nil
  @@stubs_by_name = {}
  @@spec_with_requirable_file = {}
  @@active_stub_with_requirable_file = {}
  _clear_load_cache
  unresolved = unresolved_deps
  unless unresolved.empty?
    w = "W" + "ARN"
    warn "#{w}: Unresolved or ambiguous specs during Gem::Specification.reset:"
    unresolved.values.each do |dep|
      warn "      #{dep}"

      versions = find_all_by_name(dep.name)
      unless versions.empty?
        warn "      Available/installed versions of this gem:"
        versions.each { |s| warn "      - #{s.version}" }
      end
    end
    warn "#{w}: Clearing out unresolved specs. Try 'gem cleanup <gem>'"
    warn "Please report a bug if this causes problems."
    unresolved.clear
  end
  Gem.post_reset_hooks.each { |hook| hook.call }
end

# File 'lib/rubygems/specification.rb', line 795

def self.sort_by!(list, &block)
  list.sort_by!(&block)
end

# File 'lib/rubygems/specification.rb', line 810

def self.stubs
  @@stubs ||= begin
    pattern = "*.gemspec"
    stubs = Gem.loaded_specs.values + installed_stubs(dirs, pattern) + default_stubs(pattern)
    stubs = uniq_by(stubs) { |stub| stub.full_name }

    _resort!(stubs)
    @@stubs_by_name = stubs.select { |s| Gem::Platform.match s.platform }.group_by(&:name)
    stubs
  end
end

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

def self.stubs_for(name)
  if @@stubs
    @@stubs_by_name[name] || []
  else
    pattern = "#{name}-*.gemspec"
    stubs = Gem.loaded_specs.values +
      installed_stubs(dirs, pattern).select { |s| Gem::Platform.match s.platform } +
      default_stubs(pattern)
    stubs = uniq_by(stubs) { |stub| stub.full_name }.group_by(&:name)
    stubs.each_value { |v| _resort!(v) }

    @@stubs_by_name.merge! stubs
    @@stubs_by_name[name] ||= EMPTY
  end
end

# File 'lib/rubygems/specification.rb', line 790

def self.uniq_by(list, &block) # :nodoc:
  list.uniq(&block)
end

# File 'lib/rubygems/specification.rb', line 1255

def self.unresolved_deps
  @unresolved_deps ||= Hash.new { |h, n| h[n] = Gem::Dependency.new n }
end

# File 'lib/rubygems/specification.rb', line 1511

def author
  val = authors and val.first
end

# File 'lib/rubygems/specification.rb', line 412

def author=(o)
  self.authors = [o]
end

# File 'lib/rubygems/specification.rb', line 1520

def authors
  @authors ||= []
end

# File 'lib/rubygems/specification.rb', line 281

def authors=(value)
  @authors = Array(value).flatten.grep(String)
end

# File 'lib/rubygems/specification.rb', line 720

attr_accessor :autorequire # :nodoc:

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

attr_accessor :bindir

# File 'lib/rubygems/specification.rb', line 429

attr_accessor :cert_chain

# File 'lib/rubygems/specification.rb', line 1667

def date
  @date ||= Time.utc(*Gem.source_date_epoch.utc.to_a[3..5].reverse)
end

# File 'lib/rubygems/specification.rb', line 1687

def date=(date)
  # We want to end up with a Time object with one-day resolution.
  # This is the cleanest, most-readable, faster-than-using-Date
  # way to do it.
  @date = case date
          when String then
            if DateTimeFormat =~ date
              Time.utc($1.to_i, $2.to_i, $3.to_i)

            # Workaround for where the date format output from psych isn't
            # parsed as a Time object by syck and thus comes through as a
            # string.
            elsif /\A(\d{4})-(\d{2})-(\d{2}) \d{2}:\d{2}:\d{2}\.\d+?Z\z/ =~ date
              Time.utc($1.to_i, $2.to_i, $3.to_i)
            else
              raise(Gem::InvalidSpecificationException,
                    "invalid date format in specification: #{date.inspect}")
            end
          when Time, DateLike then
            Time.utc(date.year, date.month, date.day)
          else
            TODAY
          end
end

# File 'lib/rubygems/specification.rb', line 1718

def default_executable # :nodoc:
  if defined?(@default_executable) and @default_executable
    result = @default_executable
  elsif @executables and @executables.size == 1
    result = Array(@executables).first
  else
    result = nil
  end
  result
end

# File 'lib/rubygems/specification.rb', line 727

attr_writer :default_executable

# File 'lib/rubygems/specification.rb', line 302

attr_reader :description

# File 'lib/rubygems/specification.rb', line 1779

def description=(str)
  @description = str.to_s
end

# File 'lib/rubygems/specification.rb', line 312

attr_accessor :email

# File 'lib/rubygems/specification.rb', line 1836

def executable
  val = executables and val.first
end

# File 'lib/rubygems/specification.rb', line 1843

def executable=(o)
  self.executables = [o]
end

# File 'lib/rubygems/specification.rb', line 581

def executables
  @executables ||= []
end

# File 'lib/rubygems/specification.rb', line 1851

def executables=(value)
  # TODO: warn about setting instead of pushing
  @executables = Array(value)
end

# File 'lib/rubygems/specification.rb', line 598

def extensions
  @extensions ||= []
end

# File 'lib/rubygems/specification.rb', line 1860

def extensions=(extensions)
  # TODO: warn about setting instead of pushing
  @extensions = Array extensions
end

# File 'lib/rubygems/specification.rb', line 614

def extra_rdoc_files
  @extra_rdoc_files ||= []
end

# File 'lib/rubygems/specification.rb', line 1869

def extra_rdoc_files=(files)
  # TODO: warn about setting instead of pushing
  @extra_rdoc_files = Array files
end

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

def files
  # DO NOT CHANGE TO ||= ! This is not a normal accessor. (yes, it sucks)
  # DOC: Why isn't it normal? Why does it suck? How can we fix this?
  @files = [@files,
            @test_files,
            add_bindir(@executables),
            @extra_rdoc_files,
            @extensions,
           ].flatten.compact.uniq.sort
end

# File 'lib/rubygems/specification.rb', line 1886

def files=(files)
  @files = Array files
end

# File 'lib/rubygems/specification.rb', line 1647

def has_conflicts?
  return true unless Gem.env_requirement(name).satisfied_by?(version)
  self.dependencies.any? do |dep|
    if dep.runtime?
      spec = Gem.loaded_specs[dep.name]
      spec and not spec.satisfies_requirement? dep
    else
      false
    end
  end
end

# File 'lib/rubygems/specification.rb', line 1943

def has_rdoc=(ignored) # :nodoc:
  @has_rdoc = true
end

# File 'lib/rubygems/specification.rb', line 1948

alias :has_rdoc? :has_rdoc # :nodoc:

# File 'lib/rubygems/specification.rb', line 1959

alias has_test_suite? has_unit_tests?

# File 'lib/rubygems/specification.rb', line 1954

def has_unit_tests? # :nodoc:
  not test_files.empty?
end

# File 'lib/rubygems/specification.rb', line 321

attr_accessor :homepage

# File 'lib/rubygems/specification.rb', line 623

def installed_by_version # :nodoc:
  @installed_by_version ||= Gem::Version.new(0)
end

# File 'lib/rubygems/specification.rb', line 631

def installed_by_version=(version) # :nodoc:
  @installed_by_version = Gem::Version.new version
end

# File 'lib/rubygems/specification.rb', line 2076

def license
  licenses.first
end

# File 'lib/rubygems/specification.rb', line 349

def license=(o)
  self.licenses = [o]
end

# File 'lib/rubygems/specification.rb', line 2085

def licenses
  @licenses ||= []
end

# File 'lib/rubygems/specification.rb', line 366

def licenses=(licenses)
  @licenses = Array licenses
end

# File 'lib/rubygems/specification.rb', line 400

attr_accessor :metadata

# File 'lib/rubygems/specification.rb', line 2129

def missing_extensions?
  return false if default_gem?
  return false if extensions.empty?
  return false if installed_by_version < Gem::Version.new('2.2.0.preview.2')
  return false if File.exist? gem_build_complete_path

  true
end

# File 'lib/rubygems/specification.rb', line 212

attr_accessor :name

# File 'lib/rubygems/specification.rb', line 2180

def original_platform # :nodoc:
  @original_platform ||= platform
end

# File 'lib/rubygems/specification.rb', line 733

attr_writer :original_platform # :nodoc:

# File 'lib/rubygems/specification.rb', line 2187

def platform
  @new_platform ||= Gem::Platform::RUBY
end

# File 'lib/rubygems/specification.rb', line 463

def platform=(platform)
  if @original_platform.nil? or
     @original_platform == Gem::Platform::RUBY
    @original_platform = platform
  end

  case platform
  when Gem::Platform::CURRENT then
    @new_platform = Gem::Platform.local
    @original_platform = @new_platform.to_s

  when Gem::Platform then
    @new_platform = platform

  # legacy constants
  when nil, Gem::Platform::RUBY then
    @new_platform = Gem::Platform::RUBY
  when 'mswin32' then # was Gem::Platform::WIN32
    @new_platform = Gem::Platform.new 'x86-mswin32'
  when 'i586-linux' then # was Gem::Platform::LINUX_586
    @new_platform = Gem::Platform.new 'x86-linux'
  when 'powerpc-darwin' then # was Gem::Platform::DARWIN
    @new_platform = Gem::Platform.new 'ppc-darwin'
  else
    @new_platform = Gem::Platform.new platform
  end

  @platform = @new_platform.to_s

  invalidate_memoized_attributes

  @new_platform
end

# File 'lib/rubygems/specification.rb', line 438

attr_accessor :post_install_message

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

def rdoc_options
  @rdoc_options ||= []
end

# File 'lib/rubygems/specification.rb', line 2255

def rdoc_options=(options)
  # TODO: warn about setting instead of pushing
  @rdoc_options = Array options
end

# File 'lib/rubygems/specification.rb', line 2263

def require_path
  val = require_paths and val.first
end

# File 'lib/rubygems/specification.rb', line 2270

def require_path=(path)
  self.require_paths = Array(path)
end

# File 'lib/rubygems/specification.rb', line 514

def require_paths=(val)
  @require_paths = Array(val)
end

# File 'lib/rubygems/specification.rb', line 521

attr_reader :required_ruby_version

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

def required_ruby_version=(req)
  @required_ruby_version = Gem::Requirement.create req
end

# File 'lib/rubygems/specification.rb', line 526

attr_reader :required_rubygems_version

# File 'lib/rubygems/specification.rb', line 676

def required_rubygems_version=(req)
  @required_rubygems_version = Gem::Requirement.create req
end

# File 'lib/rubygems/specification.rb', line 689

def requirements
  @requirements ||= []
end

# File 'lib/rubygems/specification.rb', line 2278

def requirements=(req)
  # TODO: warn about setting instead of pushing
  @requirements = Array req
end

# File 'lib/rubygems/specification.rb', line 533

attr_accessor :rubygems_version

# File 'lib/rubygems/specification.rb', line 538

attr_accessor :signing_key

# File 'lib/rubygems/specification.rb', line 740

attr_accessor :specification_version

# File 'lib/rubygems/specification.rb', line 2640

def stubbed?
  false
end

# File 'lib/rubygems/specification.rb', line 236

attr_reader :summary

# File 'lib/rubygems/specification.rb', line 2386

def summary=(str)
  @summary = str.to_s.strip.
    gsub(/(\w-)\n[ \t]*(\w)/, '\1\2').gsub(/\n[ \t]*/, " ") # so. weird.
end

# File 'lib/rubygems/specification.rb', line 2394

def test_file # :nodoc:
  val = test_files and val.first
end

# File 'lib/rubygems/specification.rb', line 2401

def test_file=(file) # :nodoc:
  self.test_files = [file]
end

# File 'lib/rubygems/specification.rb', line 2409

def test_files # :nodoc:
  # Handle the possibility that we have @test_suite_file but not
  # @test_files.  This will happen when an old gem is loaded via
  # YAML.
  if defined? @test_suite_file
    @test_files = [@test_suite_file].flatten
    @test_suite_file = nil
  end
  if defined?(@test_files) and @test_files
    @test_files
  else
    @test_files = []
  end
end

# File 'lib/rubygems/specification.rb', line 701

def test_files=(files) # :nodoc:
  @test_files = Array files
end

# File 'lib/rubygems/specification.rb', line 225

attr_reader :version

# File 'lib/rubygems/specification.rb', line 2628

def version=(version)
  @version = Gem::Version.create(version)
  # skip to set required_ruby_version when pre-released rubygems.
  # It caused to raise CircularDependencyError
  if @version.prerelease? && (@name.nil? || @name.strip != "rubygems")
    self.required_rubygems_version = '> 1.3.1'
  end
  invalidate_memoized_attributes

  return @version
end

# File 'lib/rubygems/specification.rb', line 1319

def ==(other) # :nodoc:
  self.class === other &&
    name == other.name &&
    version == other.version &&
    platform == other.platform
end

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

def _dump(limit)
  Marshal.dump [
    @rubygems_version,
    @specification_version,
    @name,
    @version,
    date,
    @summary,
    @required_ruby_version,
    @required_rubygems_version,
    @original_platform,
    @dependencies,
    '', # rubyforge_project
    @email,
    @authors,
    @description,
    @homepage,
    true, # has_rdoc
    @new_platform,
    @licenses,
    @metadata
  ]
end

# File 'lib/rubygems/specification.rb', line 1419

def abbreviate
  self.files = []
  self.test_files = []
  self.rdoc_options = []
  self.extra_rdoc_files = []
  self.cert_chain = []
end

# File 'lib/rubygems/specification.rb', line 1362

def activate
  other = Gem.loaded_specs[self.name]
  if other
    check_version_conflict other
    return false
  end

  raise_if_conflicts

  activate_dependencies
  add_self_to_load_path

  Gem.loaded_specs[self.name] = self
  @activated = true
  @loaded = true

  return true
end

# File 'lib/rubygems/specification.rb', line 1386

def activate_dependencies
  unresolved = Gem::Specification.unresolved_deps

  self.runtime_dependencies.each do |spec_dep|
    if loaded = Gem.loaded_specs[spec_dep.name]
      next if spec_dep.matches_spec? loaded

      msg = "can't satisfy '#{spec_dep}', already activated '#{loaded.full_name}'"
      e = Gem::LoadError.new msg
      e.name = spec_dep.name

      raise e
    end

    specs = spec_dep.to_specs

    if specs.size == 1
      specs.first.activate
    else
      name = spec_dep.name
      unresolved[name] = unresolved[name].merge spec_dep
    end
  end

  unresolved.delete self.name
end

# File 'lib/rubygems/specification.rb', line 711

attr_accessor :activated

# File 'lib/rubygems/specification.rb', line 1461

def add_bindir(executables)
  return nil if executables.nil?

  if @bindir
    Array(executables).map { |e| File.join(@bindir, e) }
  else
    executables
  end
rescue
  return nil
end

# File 'lib/rubygems/specification.rb', line 1495

alias add_dependency add_runtime_dependency

# File 'lib/rubygems/specification.rb', line 1478

def add_dependency_with_type(dependency, type, requirements)
  requirements = if requirements.empty?
                   Gem::Requirement.default
                 else
                   requirements.flatten
                 end

  unless dependency.respond_to?(:name) &&
         dependency.respond_to?(:requirement)
    dependency = Gem::Dependency.new(dependency.to_s, requirements, type)
  end

  dependencies << dependency
end