class Gem::Specification

# File rubygems/specification.rb, line 201
def removed_method_calls
  @removed_method_calls ||= []
end

# File rubygems/specification.rb, line 562
def add_development_dependency(gem, *requirements)
  add_dependency_with_type(gem, :development, requirements)
end

# File rubygems/specification.rb, line 573
def add_runtime_dependency(gem, *requirements)
  if requirements.uniq.size != requirements.size
    warn "WARNING: duplicated #{gem} dependency #{requirements}"
  end

  add_dependency_with_type(gem, :runtime, requirements)
end

# File rubygems/specification.rb, line 428
def author=(o)
  self.authors = [o]
end

# File rubygems/specification.rb, line 596
def executables
  @executables ||= []
end

# File rubygems/specification.rb, line 613
def extensions
  @extensions ||= []
end

# File rubygems/specification.rb, line 629
def extra_rdoc_files
  @extra_rdoc_files ||= []
end

# File rubygems/specification.rb, line 479
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 rubygems/specification.rb, line 659
def rdoc_options
  @rdoc_options ||= []
end

# File rubygems/specification.rb, line 530
def require_paths=(val)
  @require_paths = Array(val)
end

# File rubygems/specification.rb, line 687
def required_ruby_version=(req)
  @required_ruby_version = Gem::Requirement.create req
end

# File rubygems/specification.rb, line 694
def required_rubygems_version=(req)
  @required_rubygems_version = Gem::Requirement.create req
end

# File rubygems/specification.rb, line 707
def requirements
  @requirements ||= []
end

# File rubygems/specification.rb, line 364
def license=(o)
  self.licenses = [o]
end

# File rubygems/specification.rb, line 381
def licenses=(licenses)
  @licenses = Array licenses
end

# File rubygems/specification.rb, line 283
def authors=(value)
  @authors = Array(value).flatten.grep(String)
end

# File rubygems/specification.rb, line 262
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 rubygems/specification.rb, line 1265
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 rubygems/specification.rb, line 883
def self.all
  warn "NOTE: Specification.all called from #{caller.first}" unless
    Gem::Deprecate.skip
  _all
end

# File rubygems/specification.rb, line 901
def self.all=(specs)
  @@stubs_by_name = specs.group_by(&:name)
  @@all = @@stubs = specs
end

# File rubygems/specification.rb, line 909
def self.all_names
  self._all.map(&:full_name)
end

# File rubygems/specification.rb, line 918
def self.array_attributes
  @@array_attributes.dup
end

# File rubygems/specification.rb, line 927
def self.attribute_names
  @@attributes.dup
end

# File rubygems/specification.rb, line 823
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 rubygems/specification.rb, line 934
def self.dirs
  @@dirs ||= Gem.path.collect do |dir|
    File.join dir.dup.tap(&Gem::UNTAINT), "specifications"
  end
end

# File rubygems/specification.rb, line 944
def self.dirs=(dirs)
  self.reset

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

# File rubygems/specification.rb, line 956
def self.each
  return enum_for(:each) unless block_given?

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

# File rubygems/specification.rb, line 1019
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 rubygems/specification.rb, line 978
def self.find_all_by_full_name(full_name)
  stubs.select {|s| s.full_name == full_name }.map(&:to_spec)
end

# File rubygems/specification.rb, line 967
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 rubygems/specification.rb, line 986
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 rubygems/specification.rb, line 997
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 rubygems/specification.rb, line 1029
def self.find_in_unresolved(path)
  unresolved_specs.find_all {|spec| spec.contains_requirable_file? path }
end

# File rubygems/specification.rb, line 1037
def self.find_in_unresolved_tree(path)
  unresolved_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 rubygems/specification.rb, line 1010
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 rubygems/specification.rb, line 1064
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 rubygems/specification.rb, line 1095
def self.latest_spec_for(name)
  latest_specs(true).find {|installed_spec| installed_spec.name == name }
end

# File rubygems/specification.rb, line 1088
def self.latest_specs(prerelease = false)
  _latest_specs Gem::Specification._all, prerelease
end

# File rubygems/specification.rb, line 1114
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 rubygems/specification.rb, line 871
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 rubygems/specification.rb, line 1979
def initialize(name = nil, version = nil)
  super()
  @gems_dir              = nil
  @base_dir              = nil
  @loaded = false
  @activated = false
  @loaded_from = nil
  @original_platform = nil
  @installed_by_version = nil

  set_nil_attributes_to_nil
  set_not_nil_attributes_to_default_values

  @new_platform = Gem::Platform::RUBY

  self.name = name if name
  self.version = version if version

  if platform = Gem.platforms.last and platform != Gem::Platform::RUBY and platform != Gem::Platform.local
    self.platform = platform
  end

  yield self if block_given?
end

# File rubygems/specification.rb, line 1156
def self.non_nil_attributes
  @@non_nil_attributes.dup
end

# File rubygems/specification.rb, line 1163
def self.normalize_yaml_input(input)
  result = input.respond_to?(:read) ? input.read : input
  result = "--- " + result unless result.start_with?("--- ")
  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 rubygems/specification.rb, line 1181
def self.outdated
  outdated_and_latest_version.map {|local, _| local.name }
end

# File rubygems/specification.rb, line 1192
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 rubygems/specification.rb, line 1217
def self.required_attribute?(name)
  @@required_attributes.include? name.to_sym
end

# File rubygems/specification.rb, line 1224
def self.required_attributes
  @@required_attributes.dup
end

# File rubygems/specification.rb, line 1232
def self.reset
  @@dirs = nil
  Gem.pre_reset_hooks.each {|hook| hook.call }
  clear_specs
  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 rubygems/specification.rb, line 810
def self.stubs
  @@stubs ||= begin
    pattern = "*.gemspec"
    stubs = stubs_for_pattern(pattern, false)

    @@stubs_by_name = stubs.select {|s| Gem::Platform.match_spec? s }.group_by(&:name)
    stubs
  end
end

# File rubygems/specification.rb, line 835
def self.stubs_for(name)
  if @@stubs
    @@stubs_by_name[name] || []
  else
    @@stubs_by_name[name] ||= stubs_for_pattern("#{name}-*.gemspec").select do |s|
      s.name == name
    end
  end
end

# File rubygems/specification.rb, line 1258
def self.unresolved_deps
  @unresolved_deps ||= Hash.new {|h, n| h[n] = Gem::Dependency.new n }
end

# File rubygems/specification.rb, line 779
def self.gemspec_stubs_in(dir, pattern)
  Gem::Util.glob_files_in_dir(pattern, dir).map {|path| yield path }.select(&:valid?)
end

# File rubygems/specification.rb, line 784
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 rubygems/specification.rb, line 1051
def self.unresolved_specs
  unresolved_deps.values.map {|dep| dep.to_specs }.flatten
end

# File rubygems/specification.rb, line 1335
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 rubygems/specification.rb, line 1426
def abbreviate
  self.files = []
  self.test_files = []
  self.rdoc_options = []
  self.extra_rdoc_files = []
  self.cert_chain = []
end

# File rubygems/specification.rb, line 1365
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 rubygems/specification.rb, line 1389
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

    begin
      specs = spec_dep.to_specs
    rescue Gem::MissingSpecError => e
      raise Gem::MissingSpecError.new(e.name, e.requirement, "at: #{self.spec_file}")
    end

    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 rubygems/specification.rb, line 1462
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 rubygems/specification.rb, line 1501
def add_self_to_load_path
  return if default_gem?

  paths = full_require_paths

  Gem.add_to_load_path(*paths)
end

# File rubygems/specification.rb, line 1512
def author
  val = authors and val.first
end

# File rubygems/specification.rb, line 1521
def authors
  @authors ||= []
end

# File rubygems/specification.rb, line 2029
def base_dir
  return Gem.dir unless loaded_from
  @base_dir ||= if default_gem?
                  File.dirname File.dirname File.dirname loaded_from
                else
                  File.dirname File.dirname loaded_from
                end
end

# File rubygems/specification.rb, line 1531
def bin_dir
  @bin_dir ||= File.join gem_dir, bindir
end

# File rubygems/specification.rb, line 1538
def bin_file(name)
  File.join bin_dir, name
end

# File rubygems/specification.rb, line 1545
def build_args
  if File.exist? build_info_file
    build_info = File.readlines build_info_file
    build_info = build_info.map {|x| x.strip }
    build_info.delete ""
    build_info
  else
    []
  end
end

# File rubygems/specification.rb, line 1591
def build_info_dir
  File.join base_dir, "build_info"
end

# File rubygems/specification.rb, line 1599
def build_info_file
  File.join build_info_dir, "#{full_name}.info"
end

# File rubygems/specification.rb, line 1607
def cache_dir
  @cache_dir ||= File.join base_dir, "cache"
end

# File rubygems/specification.rb, line 1614
def cache_file
  @cache_file ||= File.join cache_dir, "#{full_name}.gem"
end

# File rubygems/specification.rb, line 1621
def conflicts
  conflicts = {}
  self.runtime_dependencies.each do |dep|
    spec = Gem.loaded_specs[dep.name]
    if spec and not spec.satisfies_requirement? dep
      (conflicts[spec] ||= []) << dep
    end
  end
  env_req = Gem.env_requirement(name)
  (conflicts[self] ||= []) << env_req unless env_req.satisfied_by? version
  conflicts
end

# File rubygems/specification.rb, line 1667
def date
  @date ||= Time.utc(*Gem.source_date_epoch.utc.to_a[3..5].reverse)
end

# File 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)
            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 rubygems/specification.rb, line 1727
def default_value(name)
  @@default_value[name]
end

# File rubygems/specification.rb, line 1737
def dependencies
  @dependencies ||= []
end

# File rubygems/specification.rb, line 1747
def dependent_gems(check_dev=true)
  out = []
  Gem::Specification.each do |spec|
    deps = check_dev ? spec.dependencies : spec.runtime_dependencies
    deps.each do |dep|
      if self.satisfies_requirement?(dep)
        sats = []
        find_all_satisfiers(dep) do |sat|
          sats << sat
        end
        out << [spec, dep, sats]
      end
    end
  end
  out
end

# File rubygems/specification.rb, line 1767
def dependent_specs
  runtime_dependencies.map {|dep| dep.to_specs }.flatten
end

# File rubygems/specification.rb, line 1774
def description=(str)
  @description = str.to_s
end

# File rubygems/specification.rb, line 1781
def development_dependencies
  dependencies.select {|d| d.type == :development }
end

# File rubygems/specification.rb, line 1793
def doc_dir(type = nil)
  @doc_dir ||= File.join base_dir, 'doc', full_name

  if type
    File.join @doc_dir, type
  else
    @doc_dir
  end
end

# File rubygems/specification.rb, line 1831
def executable
  val = executables and val.first
end

# File rubygems/specification.rb, line 1838
def executable=(o)
  self.executables = [o]
end

# File rubygems/specification.rb, line 1845
def executables=(value)
  @executables = Array(value)
end

# File rubygems/specification.rb, line 1852
def extensions=(extensions)
  @extensions = Array extensions
end

# File rubygems/specification.rb, line 1859
def extra_rdoc_files=(files)
  @extra_rdoc_files = Array files
end

# File rubygems/specification.rb, line 1868
def file_name
  "#{full_name}.gem"
end

# File rubygems/specification.rb, line 1875
def files=(files)
  @files = Array files
end

# File rubygems/specification.rb, line 1893
def for_cache
  spec = dup

  spec.files = nil
  spec.test_files = nil

  spec
end

# File rubygems/specification.rb, line 1902
def full_name
  @full_name ||= super
end

# File rubygems/specification.rb, line 1913
def gems_dir
  @gems_dir ||= File.join(base_dir, "gems")
end

# File 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 rubygems/specification.rb, line 2007
def initialize_copy(other_spec)
  self.class.array_attributes.each do |name|
    name = :"@#{name}"
    next unless other_spec.instance_variable_defined? name

    begin
      val = other_spec.instance_variable_get(name)
      if val
        instance_variable_set name, val.dup
      elsif Gem.configuration.really_verbose
        warn "WARNING: #{full_name} has an invalid nil value for #{name}"
      end
    rescue TypeError
      e = Gem::FormatException.new \
        "#{full_name} has an invalid value for #{name}"

      e.file_path = loaded_from
      raise e
    end
  end
end

# File rubygems/specification.rb, line 2591
def keep_only_files_and_directories
  @executables.delete_if      {|x| File.directory?(File.join(@bindir, x)) }
  @extensions.delete_if       {|x| File.directory?(x) && !File.symlink?(x) }
  @extra_rdoc_files.delete_if {|x| File.directory?(x) && !File.symlink?(x) }
  @files.delete_if            {|x| File.directory?(x) && !File.symlink?(x) }
  @test_files.delete_if       {|x| File.directory?(x) && !File.symlink?(x) }
end

# File rubygems/specification.rb, line 2060
def lib_files
  @files.select do |file|
    require_paths.any? do |path|
      file.start_with? path
    end
  end
end

# File rubygems/specification.rb, line 2071
def license
  licenses.first
end

# File rubygems/specification.rb, line 2080
def licenses
  @licenses ||= []
end

# File rubygems/specification.rb, line 2098
def mark_version
  @rubygems_version = Gem::VERSION
end

# File rubygems/specification.rb, line 2124
def missing_extensions?
  return false if extensions.empty?
  return false if default_gem?
  return false if File.exist? gem_build_complete_path

  true
end

# File rubygems/specification.rb, line 2155
def name_tuple
  Gem::NameTuple.new name, version, original_platform
end

# File rubygems/specification.rb, line 2138
def normalize
  if defined?(@extra_rdoc_files) and @extra_rdoc_files
    @extra_rdoc_files.uniq!
    @files ||= []
    @files.concat(@extra_rdoc_files)
  end

  @files            = @files.uniq if @files
  @extensions       = @extensions.uniq if @extensions
  @test_files       = @test_files.uniq if @test_files
  @executables      = @executables.uniq if @executables
  @extra_rdoc_files = @extra_rdoc_files.uniq if @extra_rdoc_files
end

# File rubygems/specification.rb, line 2181
def platform
  @new_platform ||= Gem::Platform::RUBY
end

# File rubygems/specification.rb, line 2248
def rdoc_options=(options)
  @rdoc_options = Array options
end

# File rubygems/specification.rb, line 2255
def require_path
  val = require_paths and val.first
end

# File rubygems/specification.rb, line 2262
def require_path=(path)
  self.require_paths = Array(path)
end

# File rubygems/specification.rb, line 2269
def requirements=(req)
  @requirements = Array req
end

# File rubygems/specification.rb, line 2653
def reset_nil_attributes_to_default
  nil_attributes = self.class.non_nil_attributes.find_all do |name|
    !instance_variable_defined?("@#{name}") || instance_variable_get("@#{name}").nil?
  end

  nil_attributes.each do |attribute|
    default = self.default_value attribute

    value = case default
            when Time, Numeric, Symbol, true, false, nil then default
            else default.dup
            end

    instance_variable_set "@#{attribute}", value
  end

  @installed_by_version ||= nil
end

# File rubygems/specification.rb, line 2280
def ri_dir
  @ri_dir ||= File.join base_dir, 'ri', full_name
end

# File rubygems/specification.rb, line 2313
def runtime_dependencies
  dependencies.select(&:runtime?)
end

# File rubygems/specification.rb, line 1439
def sanitize
  self.summary              = sanitize_string(summary)
  self.description          = sanitize_string(description)
  self.post_install_message = sanitize_string(post_install_message)
  self.authors              = authors.collect {|a| sanitize_string(a) }
end

# File rubygems/specification.rb, line 1449
def sanitize_string(string)
  return string unless string

  # HACK the #to_s is in here because RSpec has an Array of Arrays of
  # Strings for authors.  Need a way to disallow bad values on gemspec
  # generation.  (Probably won't happen.)
  string.to_s
end

# File rubygems/specification.rb, line 2329
def satisfies_requirement?(dependency)
  return @name == dependency.name &&
    dependency.requirement.satisfied_by?(@version)
end

# File rubygems/specification.rb, line 2337
def sort_obj
  [@name, @version, @new_platform == Gem::Platform::RUBY ? -1 : 1]
end

# File rubygems/specification.rb, line 2352
def spec_dir
  @spec_dir ||= File.join base_dir, "specifications"
end

# File rubygems/specification.rb, line 2360
def spec_file
  @spec_file ||= File.join spec_dir, "#{full_name}.gemspec"
end

# File rubygems/specification.rb, line 2369
def spec_name
  "#{full_name}.gemspec"
end

# File rubygems/specification.rb, line 2631
def stubbed?
  false
end

# File rubygems/specification.rb, line 2376
def summary=(str)
  @summary = str.to_s.strip.
    gsub(/(\w-)\n[ \t]*(\w)/, '\1\2').gsub(/\n[ \t]*/, " ") # so. weird.
end

# File rubygems/specification.rb, line 2419
def to_ruby
  mark_version
  result = []
  result << "# -*- encoding: utf-8 -*-"
  result << "#{Gem::StubSpecification::PREFIX}#{name} #{version} #{platform} #{raw_require_paths.join("\0")}"
  result << "#{Gem::StubSpecification::PREFIX}#{extensions.join "\0"}" unless
    extensions.empty?
  result << nil
  result << "Gem::Specification.new do |s|"

  result << "  s.name = #{ruby_code name}"
  result << "  s.version = #{ruby_code version}"
  unless platform.nil? or platform == Gem::Platform::RUBY
    result << "  s.platform = #{ruby_code original_platform}"
  end
  result << ""
  result << "  s.required_rubygems_version = #{ruby_code required_rubygems_version} if s.respond_to? :required_rubygems_version="

  if metadata and !metadata.empty?
    result << "  s.metadata = #{ruby_code metadata} if s.respond_to? :metadata="
  end
  result << "  s.require_paths = #{ruby_code raw_require_paths}"

  handled = [
    :dependencies,
    :name,
    :platform,
    :require_paths,
    :required_rubygems_version,
    :specification_version,
    :version,
    :has_rdoc,
    :default_executable,
    :metadata,
    :signing_key,
  ]

  @@attributes.each do |attr_name|
    next if handled.include? attr_name
    current_value = self.send(attr_name)
    if current_value != default_value(attr_name) || self.class.required_attribute?(attr_name)
      result << "  s.#{attr_name} = #{ruby_code current_value}"
    end
  end

  if String === signing_key
    result << "  s.signing_key = #{signing_key.dump}.freeze"
  end

  if @installed_by_version
    result << nil
    result << "  s.installed_by_version = \"#{Gem::VERSION}\" if s.respond_to? :installed_by_version"
  end

  unless dependencies.empty?
    result << nil
    result << "  if s.respond_to? :specification_version then"
    result << "    s.specification_version = #{specification_version}"
    result << "  end"
    result << nil

    result << "  if s.respond_to? :add_runtime_dependency then"

    dependencies.each do |dep|
      req = dep.requirements_list.inspect
      dep.instance_variable_set :@type, :runtime if dep.type.nil? # HACK
      result << "    s.add_#{dep.type}_dependency(%q<#{dep.name}>.freeze, #{req})"
    end

    result << "  else"
    dependencies.each do |dep|
      version_reqs_param = dep.requirements_list.inspect
      result << "    s.add_dependency(%q<#{dep.name}>.freeze, #{version_reqs_param})"
    end
    result << "  end"
  end

  result << "end"
  result << nil

  result.join "\n"
end

# File rubygems/specification.rb, line 2508
def to_ruby_for_cache
  for_cache.to_ruby
end

# File rubygems/specification.rb, line 2519
def to_spec
  self
end

# File rubygems/specification.rb, line 2550
def traverse(trail = [], visited = {}, &block)
  trail.push(self)
  begin
    dependencies.each do |dep|
      next unless dep.runtime?
      dep.matching_specs(true).each do |dep_spec|
        next if visited.has_key?(dep_spec)
        visited[dep_spec] = true
        trail.push(dep_spec)
        begin
          result = block[self, dep, dep_spec, trail]
        ensure
          trail.pop
        end
        unless result == :next
          spec_name = dep_spec.name
          dep_spec.traverse(trail, visited, &block) unless
            trail.any? {|s| s.name == spec_name }
        end
      end
    end
  ensure
    trail.pop
  end
end

# File rubygems/specification.rb, line 2583
def validate(packaging = true, strict = false)
  normalize

  validation_policy = Gem::SpecificationPolicy.new(self)
  validation_policy.packaging = packaging
  validation_policy.validate(strict)
end

# File rubygems/specification.rb, line 2604
def validate_dependencies
  Gem::SpecificationPolicy.new(self).validate_dependencies
end

# File rubygems/specification.rb, line 2599
def validate_metadata
  Gem::SpecificationPolicy.new(self).validate_metadata
end

# File rubygems/specification.rb, line 2609
def validate_permissions
  Gem::SpecificationPolicy.new(self).validate_permissions
end

# File rubygems/specification.rb, line 2619
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 rubygems/specification.rb, line 1479
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

# File rubygems/specification.rb, line 1882
def find_all_satisfiers(dep)
  Gem::Specification.each do |spec|
    yield spec if spec.satisfies_requirement? dep
  end
end

# File rubygems/specification.rb, line 2042
def invalidate_memoized_attributes
  @full_name = nil
  @cache_file = nil
end

# File rubygems/specification.rb, line 2288
def ruby_code(obj)
  case obj
  when String             then obj.dump + ".freeze"
  when Array              then '[' + obj.map {|x| ruby_code x }.join(", ") + ']'
  when Hash               then
    seg = obj.keys.sort.map {|k| "#{k.to_s.dump} => #{obj[k].to_s.dump}" }
    "{ #{seg.join(', ')} }"
  when Gem::Version       then obj.to_s.dump
  when DateLike           then obj.strftime('%Y-%m-%d').dump
  when Time               then obj.strftime('%Y-%m-%d').dump
  when Numeric            then obj.inspect
  when true, false, nil   then obj.inspect
  when Gem::Platform      then "Gem::Platform.new(#{obj.to_a.inspect})"
  when Gem::Requirement   then
    list = obj.as_list
    "Gem::Requirement.new(#{ruby_code(list.size == 1 ? obj.to_s : list)})"
  else raise Gem::Exception, "ruby_code case not handled: #{obj.class}"
  end
end

# File rubygems/specification.rb, line 2320
def same_attributes?(spec)
  @@attributes.all? {|name, default| self.send(name) == spec.send(name) }
end