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Class: Gem::Specification

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, Enumerable, BasicSpecification, Deprecate
Instance Chain:
Inherits: Gem::BasicSpecification
Defined in: lib/rubygems/specification.rb

Overview

The Specification class contains the information for a gem. Typically defined in a .gemspec file or a Rakefile, and looks like this:

Gem::Specification.new do |s|
  s.name        = 'example'
  s.version     = '0.1.0'
  s.licenses    = ['MIT']
  s.summary     = "This is an example!"
  s.description = "Much longer explanation of the example!"
  s.authors     = ["Ruby Coder"]
  s.email       = 'rubycoder@example.com'
  s.files       = ["lib/example.rb"]
  s.homepage    = 'https://rubygems.org/gems/example'
  s.    = { "source_code_uri" => "https://github.com/example/example" }
end

Starting in RubyGems 2.0, a Specification can hold arbitrary metadata. See #metadata for restrictions on the format and size of metadata items you may add to a specification.

Constant Summary

Required gemspec attributes

Recommended gemspec attributes

Optional gemspec attributes

Specification internals

Class Method Summary

BasicSpecification - Inherited

Deprecate - Extended

deprecate

Simple deprecation method that deprecates #name by wrapping it up in a dummy method.

rubygems_deprecate

Simple deprecation method that deprecates #name by wrapping it up in a dummy method.

rubygems_deprecate_command

Deprecation method to deprecate Rubygems commands.

skip_during

Temporarily turn off warnings.

Instance Attribute Summary

BasicSpecification - Inherited

#activated?

True when the gem has been activated.

#base_dir

Returns the full path to the base gem directory.

#default_gem?,
#extension_dir

Returns full path to the directory where gem’s extensions are installed.

#full_gem_path

The full path to the gem (install path + full name).

#loaded_from

The path this gemspec was loaded from.

#stubbed?

Whether this specification is stubbed - i.e.

#have_extensions?,
#base_dir=

Allows installation of extensions for git: gems.

#extension_dir=

Sets the directory where extensions for this gem will be installed.

#full_gem_path=

Allows correct activation of git: and path: gems.

#ignored=

Is this specification ignored for activation purposes?

Instance Method Summary

BasicSpecification - Inherited

#contains_requirable_file?

Return true if this spec can require file.

#datadir

The path to the data directory for this gem.

#extensions_dir

Returns path to the extensions directory.

#full_name

Returns the full name (name-version) of this ::Gem.

#full_require_paths

Full paths in the gem to add to $LOAD_PATH when this gem is activated.

#gem_dir

Returns the full path to this spec’s gem directory.

#gems_dir

Returns the full path to the gems directory containing this spec’s gem directory.

#lib_dirs_glob

Returns a string usable in Dir.glob to match all requirable paths for this spec.

#matches_for_glob

Return all files in this gem that match for glob.

#name

Name of the gem.

#platform

Platform of the gem.

#plugins

Returns the list of plugins in this spec.

#require_paths

Paths in the gem to add to $LOAD_PATH when this gem is activated.

#source_paths

Returns the paths to the source files for use with analysis and documentation tools.

#this,
#to_fullpath

Full path of the target library file.

#to_spec

Return a Specification from this gem.

#version

Version of the gem.

#have_file?,
#gem_build_complete_path

The path to the gem.build_complete file within the extension install directory.

#internal_init, #raw_require_paths, #find_full_gem_path

Constructor Details

.new(name = nil, version = nil) {|_self| ... } ⇒ Specification

Specification constructor. Assigns the default values to the attributes and yields itself for further initialization. Optionally takes #name and #version.

Yields:

  • (_self)

Yield Parameters:

  • _self (Specification)

    the object that the method was called on

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2041

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) && platform != Gem::Platform::RUBY && platform != Gem::Platform.local
    self.platform = platform
  end

  yield self if block_given?
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(sym, *a, &b)

This method is for internal use only.

Track removed method calls to warn about during build time. Warn about unknown attributes while loading a spec.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2168

def method_missing(sym, *a, &b) # :nodoc:
  if REMOVED_METHODS.include?(sym)
    removed_method_calls << sym
    return
  end

  if @specification_version > CURRENT_SPECIFICATION_VERSION &&
     sym.to_s.end_with?("=")
    warn "ignoring #{sym} loading #{full_name}" if $DEBUG
  else
    super
  end
end

Class Attribute Details

.all (rw)

Returns all specifications. This method is discouraged from use. You probably want to use one of the Enumerable methods instead.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 914

def self.all
  warn "NOTE: Specification.all called from #{caller.first}" unless
    Gem::Deprecate.skip
  _all
end

.all=(specs) (rw)

Sets the known specs to specs. Not guaranteed to work for you in the future. Use at your own risk. Caveat emptor. Doomy doom doom. Etc etc.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 932

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

.dirs (rw)

Return the directories that Specification uses to find specs.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 965

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

.dirs=(dirs) (rw)

Set the directories that Specification uses to find specs. Setting this resets the list of known specs.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 975

def self.dirs=(dirs)
  self.reset

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

Class Method Details

._all

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 767

def self._all # :nodoc:
  @@all ||= Gem.loaded_specs.values | stubs.map(&:to_spec)
end

._latest_specs(specs, prerelease = false)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1135

def self._latest_specs(specs, prerelease = false) # :nodoc:
  result = {}

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

    result[spec.name] = spec
  end

  result.map(&:last).flatten.sort_by {|tup| tup.name }
end

._load(str)

Load custom marshal format, re-initializing defaults as needed

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1300

def self._load(str)
  Gem.load_yaml

  yaml_set = false

  array = begin
    Marshal.load str
  rescue ArgumentError => e
    #
    # Some very old marshaled specs included references to `YAML::PrivateType`
    # and `YAML::Syck::DefaultKey` constants due to bugs in the old emitter
    # that generated them. Workaround the issue by defining the necessary
    # constants and retrying.
    #
    message = e.message
    raise unless message.include?("YAML::")

    unless Object.const_defined?(:YAML)
      Object.const_set "YAML", Psych
      yaml_set = true
    end

    if message.include?("YAML::Syck::")
      YAML.const_set "Syck", YAML unless YAML.const_defined?(:Syck)

      YAML::Syck.const_set "DefaultKey", Class.new if message.include?("YAML::Syck::DefaultKey")
    elsif message.include?("YAML::PrivateType")
      YAML.const_set "PrivateType", Class.new
    end

    retry
  ensure
    Object.__send__(:remove_const, "YAML") if yaml_set
  end

  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

  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

._resort!(specs)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 865

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

.add_spec(spec)

Adds spec to the known specifications, keeping the collection properly sorted.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 890

def self.add_spec(spec)
  return if _all.include? spec

  _all << spec
  stubs << spec
  (@@stubs_by_name[spec.name] ||= []) << spec

  _resort!(@@stubs_by_name[spec.name])
  _resort!(stubs)
end

.all_names

Return full names of all specs in sorted order.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 940

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

.array_attributes

Return the list of all array-oriented instance variables.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 949

def self.array_attributes
  @@array_attributes.dup
end

.attribute_names

Return the list of all instance variables.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 958

def self.attribute_names
  @@attributes.dup
end

.clear_load_cache (private)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 771

def self.clear_load_cache # :nodoc:
  @load_cache_mutex.synchronize do
    @load_cache.clear
  end
end

.clear_specs (private)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 182

def self.clear_specs # :nodoc:
  @@all = nil
  @@stubs = nil
  @@stubs_by_name = {}
  @@spec_with_requirable_file = {}
  @@active_stub_with_requirable_file = {}
end

.default_stubs(pattern = "*.gemspec")

Returns a StubSpecification for default gems

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 830

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

.each

Enumerate every known spec. See .dirs= and .add_spec to set the list of specs.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 987

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

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

.each_gemspec(dirs)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 778

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

.each_spec(dirs)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 807

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

.find_active_stub_by_path(path)

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1054

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

.find_all_by_full_name(full_name)

Returns every spec that has the given #full_name

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1009

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

.find_all_by_name(name, *requirements)

Returns every spec that matches #name and optional #requirements.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 998

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

.find_by_full_name(full_name)

Find the best specification matching a #full_name.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1027

def self.find_by_full_name(full_name)
  stubs.find {|s| s.full_name == full_name }&.to_spec
end

.find_by_name(name, *requirements)

Find the best specification matching a #name and #requirements. Raises if the dependency doesn’t resolve to a valid specification.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1017

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

.find_by_path(path)

Return the best specification that contains the file matching Gem.path.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1034

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

.find_in_unresolved(path)

Return currently unresolved specs that contain the file matching Gem.path.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1064

def self.find_in_unresolved(path)
  unresolved_specs.find_all {|spec| spec.contains_requirable_file? path }
end

.find_in_unresolved_tree(path)

Search through all unresolved deps and sub-dependencies and return specs that contain the file matching Gem.path.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1072

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

.find_inactive_by_path(path)

Return the best specification that contains the file matching Gem.path amongst the specs that are not activated.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1046

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

.from_yaml(input)

Special loader for YAML files. When a Specification object is loaded from a YAML file, it bypasses the normal Ruby object initialization routine (#initialize). This method makes up for that and deals with gems of different ages.

input can be anything that YAML.load() accepts: String or IO.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1099

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.flatten_require_paths

  spec
end

.gemspec_stubs_in(dir, pattern) (private)

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 786

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

.installed_stubs(dirs, pattern) (private)

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 791

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

.latest_spec_for(name)

Return the latest installed spec for gem #name.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1131

def self.latest_spec_for(name)
  latest_specs(true).find {|installed_spec| installed_spec.name == name }
end

.latest_specs(prerelease = false)

Return the latest specs, optionally including prerelease specs if prerelease is true.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1124

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

.load(file)

Loads Ruby format gemspec from file.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1150

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 = Gem.open_file(file, "r:UTF-8:-", &:read)

  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

.load_defaults

Loads the default specifications. It should be called only once.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 878

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

.map_stubs(dirs, pattern) (private)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 798

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

.non_nil_attributes

Specification attributes that must be non-nil

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1192

def self.non_nil_attributes
  @@non_nil_attributes.dup
end

.normalize_yaml_input(input)

Make sure the YAML specification is properly formatted with dashes

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1199

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

.outdated

Return a list of all outdated local gem names. This method is HEAVY as it must go fetch specifications from the server.

Use outdated_and_latest_version if you wish to retrieve the latest remote version as well.

[ GitHub ]

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

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

.outdated_and_latest_version

Enumerates the outdated local gems yielding the local specification and the latest remote version.

This method may take some time to return as it must check each local gem against the server’s index.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1228

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 && local_spec.version < latest_remote
  end

  nil
end

.remove_spec(spec)

Removes spec from the known specs.

[ GitHub ]

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

def self.remove_spec(spec)
  _all.delete spec.to_spec
  stubs.delete spec
  (@@stubs_by_name[spec.name] || []).delete spec
end

.required_attribute?(name) ⇒ Boolean

Is #name a required attribute?

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1253

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

.required_attributes

Required specification attributes

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1260

def self.required_attributes
  @@required_attributes.dup
end

.reset

Reset the list of known specs, running pre and post reset hooks registered in ::Gem.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1268

def self.reset
  @@dirs = nil
  Gem.pre_reset_hooks.each {|hook| hook.call }
  clear_specs
  clear_load_cache
  unresolved = unresolved_deps
  unless unresolved.empty?
    warn "WARN: 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 "WARN: 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

.stubs

Returns a StubSpecification for every installed gem

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 817

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

.stubs_for(name)

Returns a StubSpecification for installed gem named #name only returns stubs that match Gem.platforms

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 842

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

.stubs_for_pattern(pattern, match_platform = true)

This method is for internal use only.

Finds stub specifications matching a pattern from the standard locations, optionally filtering out specs not matching the current platform

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 856

def self.stubs_for_pattern(pattern, match_platform = true) # :nodoc:
  installed_stubs = installed_stubs(Gem::Specification.dirs, pattern)
  installed_stubs.select! {|s| Gem::Platform.match_spec? s } if match_platform
  stubs = installed_stubs + default_stubs(pattern)
  stubs = stubs.uniq {|stub| stub.full_name }
  _resort!(stubs)
  stubs
end

.unresolved_deps

DOC: This method needs documented or nodoc’d

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1293

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

.unresolved_specs (private)

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1086

def self.unresolved_specs
  unresolved_deps.values.map {|dep| dep.to_specs }.flatten
end

Instance Attribute Details

#activated? (rw)

Alias for #activated.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 738

alias :activated? :activated

#author (rw)

Singular reader for #authors. Returns the first author in the list

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1572

def author
  (val = authors) && val.first
end

#author=(o) (rw)

Singular (alternative) writer for #authors

Usage:

spec.author = 'John Jones'
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 425

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

#authors (rw)

The list of author names who wrote this gem.

spec.authors = ['Chad Fowler', 'Jim Weirich', 'Rich Kilmer']
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1581

def authors
  @authors ||= []
end

#authors=(value) (rw)

A list of authors for this gem.

Alternatively, a single author can be specified by assigning a string to spec.author

Usage:

spec.authors = ['John Jones', 'Mary Smith']
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 280

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

#autorequire (rw)

This method is for internal use only.

Autorequire was used by old RubyGems to automatically require a file.

Deprecated: It is neither supported nor functional.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 745

attr_accessor :autorequire # :nodoc:

#bindir (rw)

The path in the gem for executable scripts. Usually ‘bin’

Usage:

spec.bindir = 'bin'
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 436

attr_accessor :bindir

#cert_chain (rw)

The certificate chain used to sign this gem. See Security for details.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 442

attr_accessor :cert_chain

#date (rw)

The date this gem was created.

If SOURCE_DATE_EPOCH is set as an environment variable, use that to support reproducible builds; otherwise, default to the current UTC date.

Details on SOURCE_DATE_EPOCH: reproducible-builds.org/specs/source-date-epoch/

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1729

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

#date=(date) (rw)

The date this gem was created

DO NOT set this, it is set automatically when the gem is packaged.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1749

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

#default_executable (rw)

This method is for internal use only.

The default executable for this gem.

Deprecated: The name of the gem is assumed to be the name of the executable now. See Gem.bin_path.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1774

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

#default_executable=(value) (rw)

Sets the default executable for this gem.

Deprecated: You must now specify the executable name to Gem.bin_path.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 752

attr_writer :default_executable

#description (rw)

A long description of this gem

The description should be more detailed than the summary but not excessively long. A few paragraphs is a recommended length with no examples or formatting.

Usage:

spec.description = <<-EOF
  Rake is a Make-like program implemented in Ruby. Tasks and
  dependencies are specified in standard Ruby syntax.
EOF
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 310

attr_reader :description

#description=(str) (rw)

A detailed description of this gem. See also #summary

[ GitHub ]

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

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

#email (rw)

A contact email address (or addresses) for this gem

Usage:

spec.email = 'john.jones@example.com'
spec.email = ['jack@example.com', 'jill@example.com']
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 320

attr_accessor :email

#executable (rw)

Singular accessor for #executables

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1893

def executable
  (val = executables) && val.first
end

#executable=(o) (rw)

Singular accessor for #executables

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1900

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

#executables (rw)

Executables included in the gem.

For example, the rake gem has rake as an executable. You don’t specify the full path (as in bin/rake); all application-style files are expected to be found in bindir. These files must be executable Ruby files. Files that use bash or other interpreters will not work.

Executables included may only be ruby scripts, not scripts for other languages or compiled binaries.

Usage:

spec.executables << 'rake'
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 593

def executables
  @executables ||= []
end

#executables=(value) (rw)

Sets executables to value, ensuring it is an array.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1907

def executables=(value)
  @executables = Array(value)
end

#extensions (rw)

Extensions to build when installing the gem, specifically the paths to extconf.rb-style files used to compile extensions.

These files will be run when the gem is installed, causing the C (or whatever) code to be compiled on the user’s machine.

Usage:

spec.extensions << 'ext/rmagic/extconf.rb'

See Ext::Builder for information about writing extensions for gems.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 610

def extensions
  @extensions ||= []
end

#extensions=(extensions) (rw)

Sets extensions to #extensions, ensuring it is an array.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1914

def extensions=(extensions)
  @extensions = Array extensions
end

#extra_rdoc_files (rw)

Extra files to add to RDoc such as README or doc/examples.txt

When the user elects to generate the RDoc documentation for a gem (typically at install time), all the library files are sent to RDoc for processing. This option allows you to have some non-code files included for a more complete set of documentation.

Usage:

spec.extra_rdoc_files = ['README', 'doc/user-guide.txt']
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 626

def extra_rdoc_files
  @extra_rdoc_files ||= []
end

#extra_rdoc_files=(files) (rw)

Sets extra_rdoc_files to #files, ensuring it is an array.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1921

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

#files (rw)

Files included in this gem. You cannot append to this accessor, you must assign to it.

Only add files you can require to this list, not directories, etc.

Directories are automatically stripped from this list when building a gem, other non-files cause an error.

Usage:

require 'rake'
spec.files = FileList['lib/**/*.rb',
                      'bin/*',
                      '[A-Z]*'].to_a

# or without Rake...
spec.files = Dir['lib/**/*.rb'] + Dir['bin/*']
spec.files += Dir['[A-Z]*']
spec.files.reject! { |fn| fn.include? "CVS" }
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 259

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

#files=(files) (rw)

Sets files to #files, ensuring it is an array.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1937

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

#has_conflicts?Boolean (readonly)

Return true if there are possible conflicts against the currently loaded specs.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1709

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 && !spec.satisfies_requirement?(dep)
    else
      false
    end
  end
end

#has_rdoc=(ignored) (rw)

This method is for internal use only.

Deprecated and ignored.

Formerly used to indicate this gem was RDoc-capable.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1994

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

#has_rdoc? (rw)

This method is for internal use only.

Alias for #has_rdoc.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1999

alias :has_rdoc? :has_rdoc # :nodoc:

#has_test_suite? (readonly)

This method is for internal use only.

Alias for #has_unit_tests?.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2010

alias has_test_suite? has_unit_tests?

#has_unit_tests?Boolean (readonly) Also known as: #has_test_suite?

This method is for internal use only.

True if this gem has files in test_files

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2005

def has_unit_tests? # :nodoc:
  !test_files.empty?
end

#homepage (rw)

The URL of this gem’s home page

Usage:

spec.homepage = 'https://github.com/ruby/rake'
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 329

attr_accessor :homepage

#installed_by_version (rw)

This method is for internal use only.

The version of RubyGems that installed this gem. Returns Gem::Version.new(0) for gems installed by versions earlier than RubyGems 2.2.0.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 635

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

#installed_by_version=(version) (rw)

This method is for internal use only.

Sets the version of RubyGems that installed this gem. See also #installed_by_version.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 643

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

#license (rw)

Singular accessor for #licenses

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2133

def license
  licenses.first
end

#license=(o) (rw)

The license for this gem.

The license must be no more than 64 characters.

This should just be the name of your license. The full text of the license should be inside of the gem (at the top level) when you build it.

The simplest way is to specify the standard SPDX ID spdx.org/licenses/ for the license. Ideally, you should pick one that is OSI (Open Source Initiative) opensource.org/licenses/ approved.

The most commonly used OSI-approved licenses are MIT and Apache-2.0. GitHub also provides a license picker at choosealicense.com/.

You can also use a custom license file along with your gemspec and specify a LicenseRef-<idstring>, where idstring is the name of the file containing the license text.

You should specify a license for your gem so that people know how they are permitted to use it and any restrictions you’re placing on it. Not specifying a license means all rights are reserved; others have no right to use the code for any purpose.

You can set multiple licenses with #licenses=

Usage:

spec.license = 'MIT'
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 361

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

#licenses (rw)

Plural accessor for setting licenses

See #license= for details

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2142

def licenses
  @licenses ||= []
end

#licenses=(licenses) (rw)

The license(s) for the library.

Each license must be a short name, no more than 64 characters.

This should just be the name of your license. The full text of the license should be inside of the gem when you build it.

See #license= for more discussion

Usage:

spec.licenses = ['MIT', 'GPL-2.0']
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 378

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

#metadata (rw)

The metadata holds extra data for this gem that may be useful to other consumers and is settable by gem authors.

Metadata items have the following restrictions:

  • The metadata must be a Hash object

  • All keys and values must be Strings

  • Keys can be a maximum of 128 bytes and values can be a maximum of 1024 bytes

  • All strings must be UTF-8, no binary data is allowed

You can use metadata to specify links to your gem’s homepage, codebase, documentation, wiki, mailing list, issue tracker and changelog.

s. = {
  "bug_tracker_uri"   => "https://example.com/user/bestgemever/issues",
  "changelog_uri"     => "https://example.com/user/bestgemever/CHANGELOG.md",
  "documentation_uri" => "https://www.example.info/gems/bestgemever/0.0.1",
  "homepage_uri"      => "https://bestgemever.example.io",
  "mailing_list_uri"  => "https://groups.example.com/bestgemever",
  "source_code_uri"   => "https://example.com/user/bestgemever",
  "wiki_uri"          => "https://example.com/user/bestgemever/wiki"
  "funding_uri"       => "https://example.com/donate"
}

These links will be used on your gem’s page on rubygems.org and must pass validation against following regex.

%r{\Ahttps?:\/\/([^\s:@]:[^\s:@]*@)?[A-Za-z\d\-](\.[A-Za-z\d\-])\.?(:\d{1,5})?([\/?]\S*)?\z}
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 413

attr_accessor :

#missing_extensions?Boolean (readonly)

Is this specification missing its extensions? When this returns true you probably want to build_extensions

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2186

def missing_extensions?
  return false if extensions.empty?
  return false if default_gem?
  return false if File.exist? gem_build_complete_path

  true
end

#name (rw)

This gem’s name.

Usage:

spec.name = 'rake'
[ GitHub ]

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

attr_accessor :name

#original_platform (rw)

This method is for internal use only.

Cruft. Use #platform.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2236

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

#original_platform=(value) (rw)

This method is for internal use only.

Allows deinstallation of gems with legacy platforms.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 758

attr_writer :original_platform # :nodoc:

#platform (rw)

The platform this gem runs on. See Platform for details.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2243

def platform
  @new_platform ||= Gem::Platform::RUBY # rubocop:disable Naming/MemoizedInstanceVariableName
end

#platform=(platform) (rw)

The platform this gem runs on.

This is usually Platform::RUBY or Platform::CURRENT.

Most gems contain pure Ruby code; they should simply leave the default value in place. Some gems contain C (or other) code to be compiled into a Ruby “extension”. The gem should leave the default value in place unless the code will only compile on a certain type of system. Some gems consist of pre-compiled code (“binary gems”). It’s especially important that they set the platform attribute appropriately. A shortcut is to set the platform to Platform::CURRENT, which will cause the gem builder to set the platform to the appropriate value for the system on which the build is being performed.

If this attribute is set to a non-default value, it will be included in the filename of the gem when it is built such as: nokogiri-1.6.0-x86-mingw32.gem

Usage:

spec.platform = Gem::Platform.local
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 476

def platform=(platform)
  if @original_platform.nil? ||
     @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

#post_install_message (rw)

A message that gets displayed after the gem is installed.

Usage:

spec.post_install_message = "Thanks for installing!"
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 451

attr_accessor :post_install_message

#rdoc_options (rw)

Specifies the rdoc options to be used when generating API documentation.

Usage:

spec.rdoc_options << '--title' << 'Rake -- Ruby Make' <<
  '--main' << 'README' <<
  '--line-numbers'
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 656

def rdoc_options
  @rdoc_options ||= []
end

#rdoc_options=(options) (rw)

Sets rdoc_options to value, ensuring it is an array.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2310

def rdoc_options=(options)
  @rdoc_options = Array options
end

#require_path (rw)

Singular accessor for #require_paths

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2317

def require_path
  (val = require_paths) && val.first
end

#require_path=(path) (rw)

Singular accessor for #require_paths

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2324

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

#require_paths=(val) (writeonly)

Paths in the gem to add to $LOAD_PATH when this gem is activated. If you have an extension you do not need to add "ext" to the require path, the extension build process will copy the extension files into “lib” for you.

The default value is "lib"

Usage:

# If all library files are in the root directory...
spec.require_paths = ['.']
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 527

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

#required_ruby_version (rw)

The version of Ruby required by this gem

Usage:

spec.required_ruby_version = '>= 2.7.0'
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 294

attr_reader :required_ruby_version

#required_ruby_version=(req) (rw)

The version of Ruby required by this gem. The ruby version can be specified to the patch-level:

$ ruby -v -e 'p Gem.ruby_version'
ruby 2.0p247 (2013-06-27 revision 41674) [x86_64-darwin12]
#<Gem::Version "2.0.0.247">

Prereleases can also be specified.

Usage:

# This gem will work with 1.8.6 or greater...
spec.required_ruby_version = '>= 1.8.6'

# Only with final releases of major version 2 where minor version is at least 3
spec.required_ruby_version = '~> 2.3'

# Only prereleases or final releases after 2.6.0.preview2
spec.required_ruby_version = '> 2.6.0.preview2'

# This gem will work with 2.3.0 or greater, including major version 3, but lesser than 4.0.0
spec.required_ruby_version = '>= 2.3', '< 4'
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 686

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

  @required_ruby_version.requirements.map! do |op, v|
    if v >= LATEST_RUBY_WITHOUT_PATCH_VERSIONS && v.release.segments.size == 4
      [op == "~>" ? "=" : op, Gem::Version.new(v.segments.tap {|s| s.delete_at(3) }.join("."))]
    else
      [op, v]
    end
  end
end

#required_rubygems_version (rw)

The RubyGems version required by this gem

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 534

attr_reader :required_rubygems_version

#required_rubygems_version=(req) (rw)

The RubyGems version required by this gem

[ GitHub ]

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

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

#requirements (rw)

Lists the external (to RubyGems) requirements that must be met for this gem to work. It’s simply information for the user.

Usage:

spec.requirements << 'libmagick, v6.0'
spec.requirements << 'A good graphics card'
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 714

def requirements
  @requirements ||= []
end

#requirements=(req) (rw)

Set requirements to req, ensuring it is an array.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2331

def requirements=(req)
  @requirements = Array req
end

#rubygems_version (rw)

The version of RubyGems used to create this gem.

Do not set this, it is set automatically when the gem is packaged.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 541

attr_accessor :rubygems_version

#signing_key (rw)

The key used to sign this gem. See Security for details.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 546

attr_accessor :signing_key

#specification_version (rw)

The Specification version of this gemspec.

Do not set this, it is set automatically when the gem is packaged.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 765

attr_accessor :specification_version

#stubbed?Boolean (readonly)

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2684

def stubbed?
  false
end

#summary (rw)

A short summary of this gem’s description. Displayed in gem list -d.

The #description should be more detailed than the summary.

Usage:

spec.summary = "This is a small summary of my gem"
[ GitHub ]

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

attr_reader :summary

#summary=(str) (rw)

A short summary of this gem’s description.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2438

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

#test_file (rw)

This method is for internal use only.

Singular accessor for #test_files

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2446

def test_file # :nodoc:
  (val = test_files) && val.first
end

#test_file=(file) (rw)

This method is for internal use only.

Singular mutator for #test_files

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2453

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

#test_files (rw)

This method is for internal use only.

Test files included in this gem. You cannot append to this accessor, you must assign to it.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2461

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) && @test_files
    @test_files
  else
    @test_files = []
  end
end

#test_files=(files) (rw)

This method is for internal use only.

A collection of unit test files. They will be loaded as unit tests when the user requests a gem to be unit tested.

Usage:

spec.test_files = Dir.glob('test/tc_*.rb')
spec.test_files = ['tests/test-suite.rb']
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 726

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

#version (rw)

This gem’s version.

The version string can contain numbers and periods, such as 1.0.0. A gem is a ‘prerelease’ gem if the version has a letter in it, such as 1.0.0.pre.

Usage:

spec.version = '0.4.1'
[ GitHub ]

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

attr_reader :version

#version=(version) (rw)

Set the version to #version, potentially also setting required_rubygems_version if #version indicates it is a prerelease.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2670

def version=(version)
  @version = Gem::Version.create(version)
  return if @version.nil?

  # 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

Instance Method Details

#<=>(other)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1378

def <=>(other) # :nodoc:
  sort_obj <=> other.sort_obj
end

#==(other)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1382

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

#_dump(limit)

Dump only crucial instance variables.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1395

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

#abbreviate

Abbreviate the spec for downloading. Abbreviated specs are only used for searching, downloading and related activities and do not need deployment specific information (e.g. list of files). So we abbreviate the spec, making it much smaller for quicker downloads.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1486

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

#activate

Activate this spec, registering it as a loaded spec and adding it’s lib paths to $LOAD_PATH. Returns true if the spec was activated, false if it was previously activated. Freaks out if there are conflicts upon activation.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1425

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

#activate_dependencies

Activate all unambiguously resolved runtime dependencies of this spec. Add any ambiguous dependencies to the unresolved list to be resolved later, as needed.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1449

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

#activated (rw) Also known as: #activated?

True when this gemspec has been activated. This attribute is not persisted.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 736

attr_accessor :activated

#add_bindir(executables)

Returns an array with bindir attached to each executable in the #executables list

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1522

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

#add_dependency(gem, *requirements)

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1556

alias add_dependency add_runtime_dependency

#add_dependency_with_type(dependency, type, requirements) (private)

Adds a dependency on gem dependency with type type that requires #requirements. Valid types are currently :runtime and :development.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1539

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

#add_development_dependency(gem, *requirements)

Adds a development dependency named gem with #requirements to this gem.

Usage:

spec.add_development_dependency 'example', '~> 1.1', '>= 1.1.4'

Development dependencies aren’t installed by default and aren’t activated when a gem is required.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 559

def add_development_dependency(gem, *requirements)
  add_dependency_with_type(gem, :development, requirements)
end

#add_runtime_dependency(gem, *requirements) Also known as: #add_dependency

Adds a runtime dependency named gem with #requirements to this gem.

Usage:

spec.add_runtime_dependency 'example', '~> 1.1', '>= 1.1.4'
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 570

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

#add_self_to_load_path

Adds this spec’s require paths to LOAD_PATH, in the proper location.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1561

def add_self_to_load_path
  return if default_gem?

  paths = full_require_paths

  Gem.add_to_load_path(*paths)
end

#base_dir

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2091

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

#bin_dir

Returns the full path to installed gem’s bin directory.

NOTE: do not confuse this with #bindir, which is just ‘bin’, not a full path.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1591

def bin_dir
  @bin_dir ||= File.join gem_dir, bindir
end

#bin_file(name)

Returns the full path to an executable named #name in this gem.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1598

def bin_file(name)
  File.join bin_dir, name
end

#build_args

Returns the build_args used to install the gem

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1605

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

#build_extensions

This method is for internal use only.

Builds extensions for this platform if the gem has extensions listed and the gem.build_complete file is missing.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1620

def build_extensions # :nodoc:
  return if extensions.empty?
  return if default_gem?
  # we need to fresh build when same name and version of default gems
  return if self.class.find_by_full_name(full_name)&.default_gem?
  return if File.exist? gem_build_complete_path
  return if !File.writable?(base_dir)
  return if !File.exist?(File.join(base_dir, "extensions"))

  begin
    # We need to require things in $LOAD_PATH without looking for the
    # extension we are about to build.
    unresolved_deps = Gem::Specification.unresolved_deps.dup
    Gem::Specification.unresolved_deps.clear

    require_relative "config_file"
    require_relative "ext"
    require_relative "user_interaction"

    ui = Gem::SilentUI.new
    Gem::DefaultUserInteraction.use_ui ui do
      builder = Gem::Ext::Builder.new self
      builder.build_extensions
    end
  ensure
    ui&.close
    Gem::Specification.unresolved_deps.replace unresolved_deps
  end
end

#build_info_dir

Returns the full path to the build info directory

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1653

def build_info_dir
  File.join base_dir, "build_info"
end

#build_info_file

Returns the full path to the file containing the build information generated when the gem was installed

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1661

def build_info_file
  File.join build_info_dir, "#{full_name}.info"
end

#cache_dir

Returns the full path to the cache directory containing this spec’s cached gem.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1669

def cache_dir
  @cache_dir ||= File.join base_dir, "cache"
end

#cache_file

Returns the full path to the cached gem for this spec.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1676

def cache_file
  @cache_file ||= File.join cache_dir, "#{full_name}.gem"
end

#check_version_conflict(other) (private)

This method is for internal use only.

Raise an exception if the version of this spec conflicts with the one that is already loaded (other)

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2282

def check_version_conflict(other) # :nodoc:
  return if self.version == other.version

  # This gem is already loaded.  If the currently loaded gem is not in the
  # list of candidate gems, then we have a version conflict.

  msg = "can't activate #{full_name}, already activated #{other.full_name}"

  e = Gem::LoadError.new msg
  e.name = self.name

  raise e
end

#conficts_when_loaded_with?(list_of_specs) ⇒ Boolean

This method is for internal use only.

return true if there will be conflict when spec if loaded together with the list of specs.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1699

def conficts_when_loaded_with?(list_of_specs) # :nodoc:
  result = list_of_specs.any? do |spec|
    spec.dependencies.any? {|dep| dep.runtime? && (dep.name == name) && !satisfies_requirement?(dep) }
  end
  result
end

#conflicts

Return any possible conflicts against the currently loaded specs.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1683

def conflicts
  conflicts = {}
  self.runtime_dependencies.each do |dep|
    spec = Gem.loaded_specs[dep.name]
    if spec && !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

#default_value(name)

The default value for specification attribute #name

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1789

def default_value(name)
  @@default_value[name]
end

#dependencies

A list of Dependency objects this gem depends on.

Use #add_dependency or #add_development_dependency to add dependencies to a gem.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1799

def dependencies
  @dependencies ||= []
end

#dependent_gems(check_dev = true)

Return a list of all gems that have a dependency on this gemspec. The list is structured with entries that conform to:

[depending_gem, dependency, [list_of_gems_that_satisfy_dependency]]
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1809

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

#dependent_specs

Returns all specs that matches this spec’s runtime dependencies.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1829

def dependent_specs
  runtime_dependencies.map {|dep| dep.to_specs }.flatten
end

#development_dependencies

List of dependencies that are used for development

[ GitHub ]

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

def development_dependencies
  dependencies.select {|d| d.type == :development }
end

#doc_dir(type = nil)

Returns the full path to this spec’s documentation directory. If type is given it will be appended to the end. For example:

spec.doc_dir      # => "/path/to/gem_repo/doc/a-1"

spec.doc_dir 'ri' # => "/path/to/gem_repo/doc/a-1/ri"
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1855

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

#encode_with(coder)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1865

def encode_with(coder) # :nodoc:
  mark_version

  coder.add "name", @name
  coder.add "version", @version
  platform = case @original_platform
  when nil, "" then
    "ruby"
  when String then
    @original_platform
  else
    @original_platform.to_s
  end
  coder.add "platform", platform

  attributes = @@attributes.map(&:to_s) - %w[name version platform]
  attributes.each do |name|
    coder.add name, instance_variable_get("@#{name}")
  end
end

#eql?(other) ⇒ Boolean

This method is for internal use only.
[ GitHub ]

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

def eql?(other) # :nodoc:
  self.class === other && same_attributes?(other)
end

#file_name

The default (generated) file name of the gem. See also #spec_name.

spec.file_name # => "example-1.0.gem"
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1930

def file_name
  "#{full_name}.gem"
end

#find_all_satisfiers(dep) (private)

Finds all gems that satisfy dep

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1944

def find_all_satisfiers(dep)
  Gem::Specification.each do |spec|
    yield spec if spec.satisfies_requirement? dep
  end
end

#flatten_require_paths

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2727

def flatten_require_paths # :nodoc:
  return unless raw_require_paths.first.is_a?(Array)

  warn "#{name} #{version} includes a gemspec with `require_paths` set to an array of arrays. Newer versions of this gem might've already fixed this"
  raw_require_paths.flatten!
end

#for_cache

Creates a duplicate spec without large blobs that aren’t used at runtime.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1955

def for_cache
  spec = dup

  spec.files = nil
  spec.test_files = nil

  spec
end

#full_name

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1964

def full_name
  @full_name ||= super
end

#gem_dir

This method is for internal use only.

Work around bundler removing my methods

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1971

def gem_dir # :nodoc:
  super
end

#gems_dir

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1975

def gems_dir
  @gems_dir ||= File.join(base_dir, "gems")
end

#has_rdoc (rw) Also known as: #has_rdoc?

This method is for internal use only.

Deprecated and ignored, defaults to true.

Formerly used to indicate this gem was RDoc-capable.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1984

def has_rdoc # :nodoc:
  true
end

#hash

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2013

def hash # :nodoc:
  name.hash ^ version.hash
end

#init_with(coder)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2017

def init_with(coder) # :nodoc:
  @installed_by_version ||= nil
  yaml_initialize coder.tag, coder.map
end

#initialize_copy(other_spec)

Duplicates array_attributes from other_spec so state isn’t shared.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2069

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

#inspect

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2111

def inspect # :nodoc:
  if $DEBUG
    super
  else
    "#{super[0..-2]} #{full_name}>"
  end
end

#internal_init

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2146

def internal_init # :nodoc:
  super
  @bin_dir       = nil
  @cache_dir     = nil
  @cache_file    = nil
  @doc_dir       = nil
  @ri_dir        = nil
  @spec_dir      = nil
  @spec_file     = nil
end

#invalidate_memoized_attributes (private)

Expire memoized instance variables that can incorrectly generate, replace or miss files due changes in certain attributes used to compute them.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2104

def invalidate_memoized_attributes
  @full_name = nil
  @cache_file = nil
end

#keep_only_files_and_directories

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2642

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

#lib_files

Files in the ::Gem under one of the require_paths

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2122

def lib_files
  @files.select do |file|
    require_paths.any? do |path|
      file.start_with? path
    end
  end
end

#mark_version

Sets the rubygems_version to the current RubyGems version.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2160

def mark_version
  @rubygems_version = Gem::VERSION
end

#name_tuple

Return a NameTuple that represents this Specification

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2217

def name_tuple
  Gem::NameTuple.new name, version, original_platform
end

#normalize

Normalize the list of files so that:

  • All file lists have redundancies removed.

  • Files referenced in the extra_rdoc_files are included in the package file list.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2200

def normalize
  if defined?(@extra_rdoc_files) && @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

#original_name

This method is for internal use only.

Returns the full name (name-version) of this gemspec using the original platform. For use with legacy gems.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2225

def original_name # :nodoc:
  if platform == Gem::Platform::RUBY || platform.nil?
    "#{@name}-#{@version}"
  else
    "#{@name}-#{@version}-#{@original_platform}"
  end
end

#pretty_print(q)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2247

def pretty_print(q) # :nodoc:
  q.group 2, "Gem::Specification.new do |s|", "end" do
    q.breakable

    attributes = @@attributes - [:name, :version]
    attributes.unshift :installed_by_version
    attributes.unshift :version
    attributes.unshift :name

    attributes.each do |attr_name|
      current_value = self.send attr_name
      current_value = current_value.sort if %i[files test_files].include? attr_name
      if current_value != default_value(attr_name) ||
         self.class.required_attribute?(attr_name)

        q.text "s.#{attr_name} = "

        if attr_name == :date
          current_value = current_value.utc

          q.text "Time.utc(#{current_value.year}, #{current_value.month}, #{current_value.day})"
        else
          q.pp current_value
        end

        q.breakable
      end
    end
  end
end

#raise_if_conflicts

This method is for internal use only.

Check the spec for possible conflicts and freak out if there are any.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2301

def raise_if_conflicts # :nodoc:
  if has_conflicts?
    raise Gem::ConflictError.new self, conflicts
  end
end

#raw_require_paths

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2734

def raw_require_paths # :nodoc:
  @require_paths
end

#removed_method_calls

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 198

def removed_method_calls
  @removed_method_calls ||= []
end

#reset_nil_attributes_to_default

Reset nil attributes to their default values to make the spec valid

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2706

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

  nil
end

#respond_to_missing?(m, include_private = false) ⇒ Boolean

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2335

def respond_to_missing?(m, include_private = false) # :nodoc:
  false
end

#ri_dir

Returns the full path to this spec’s ri directory.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2342

def ri_dir
  @ri_dir ||= File.join base_dir, "ri", full_name
end

#ruby_code(obj) (private)

Return a string containing a Ruby code representation of the given object.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2350

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

#runtime_dependencies

List of dependencies that will automatically be activated at runtime.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2375

def runtime_dependencies
  dependencies.select(&:runtime?)
end

#same_attributes?(spec) ⇒ Boolean (private)

True if this gem has the same attributes as other.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2382

def same_attributes?(spec)
  @@attributes.all? {|name, default| self.send(name) == spec.send(name) }
end

#sanitize

Sanitize the descriptive fields in the spec. Sometimes non-ASCII characters will garble the site index. Non-ASCII characters will be replaced by their XML entity equivalent.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1499

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

#sanitize_string(string)

Sanitize a single string.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 1509

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

#satisfies_requirement?(dependency) ⇒ Boolean

Checks if this specification meets the requirement of dependency.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2391

def satisfies_requirement?(dependency)
  return @name == dependency.name &&
         dependency.requirement.satisfied_by?(@version)
end

#sort_obj

Returns an object you can use to sort specifications in #sort_by.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2399

def sort_obj
  [@name, @version, Gem::Platform.sort_priority(@new_platform)]
end

#source

This method is for internal use only.

Used by Resolver to order Specification objects

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2406

def source # :nodoc:
  Gem::Source::Installed.new
end

#spec_dir

Returns the full path to the directory containing this spec’s gemspec file. eg: /usr/local/lib/ruby/gems/1.8/specifications

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2414

def spec_dir
  @spec_dir ||= File.join base_dir, "specifications"
end

#spec_file

Returns the full path to this spec’s gemspec file. eg: /usr/local/lib/ruby/gems/1.8/specifications/mygem-1.0.gemspec

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2422

def spec_file
  @spec_file ||= File.join spec_dir, "#{full_name}.gemspec"
end

#spec_name

The default name of the gemspec. See also #file_name

spec.spec_name # => "example-1.0.gemspec"
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2431

def spec_name
  "#{full_name}.gemspec"
end

#to_ruby

Returns a Ruby code representation of this specification, such that it can be eval’ed and reconstruct the same specification later. Attributes that still have their default values are omitted.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2481

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? || 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  && !.empty?
    result << "  s.metadata = #{ruby_code } 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,
    :,
    :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 << "  s.specification_version = #{specification_version}"
    result << nil

    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
  end

  result << "end"
  result << nil

  result.join "\n"
end

#to_ruby_for_cache

Returns a Ruby lighter-weight code representation of this specification, used for indexing only.

See #to_ruby.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2559

def to_ruby_for_cache
  for_cache.to_ruby
end

#to_s

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2563

def to_s # :nodoc:
  "#<Gem::Specification name=#{@name} version=#{@version}>"
end

#to_spec

Returns self

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2570

def to_spec
  self
end

#to_yaml(opts = {})

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2574

def to_yaml(opts = {}) # :nodoc:
  Gem.load_yaml

  # Because the user can switch the YAML engine behind our
  # back, we have to check again here to make sure that our
  # psych code was properly loaded, and load it if not.
  unless Gem.const_defined?(:NoAliasYAMLTree)
    require_relative "psych_tree"
  end

  builder = Gem::NoAliasYAMLTree.create
  builder << self
  ast = builder.tree

  require "stringio"
  io = StringIO.new
  io.set_encoding Encoding::UTF_8

  Psych::Visitors::Emitter.new(io).accept(ast)

  io.string.gsub(/ !!null \n/, " \n")
end

#traverse(trail = [], visited = {}, &block)

Recursively walk dependencies of this spec, executing the block for each hop.

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2601

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

#validate(packaging = true, strict = false)

Checks that the specification contains all required fields, and does a very basic sanity check.

Raises InvalidSpecificationException if the spec does not pass the checks..

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2634

def validate(packaging = true, strict = false)
  normalize

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

#validate_dependencies

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2655

def validate_dependencies
  Gem::SpecificationPolicy.new(self).validate_dependencies
end

#validate_metadata

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2650

def 
  Gem::SpecificationPolicy.new(self).
end

#validate_permissions

[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2660

def validate_permissions
  Gem::SpecificationPolicy.new(self).validate_permissions
end

#yaml_initialize(tag, vals)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/specification.rb', line 2688

def yaml_initialize(tag, vals) # :nodoc:
  vals.each do |ivar, val|
    case ivar
    when "date"
      # Force Date to go through the extra coerce logic in date=
      self.date = val.tap(&Gem::UNTAINT)
    else
      instance_variable_set "@#{ivar}", val.tap(&Gem::UNTAINT)
    end
  end

  @original_platform = @platform # for backwards compatibility
  self.platform = Gem::Platform.new @platform
end