Class: Gem::Specification

Inherits:
BasicSpecification
  • Object
show all
Extended by:
Enumerable
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       = '[email protected]'
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.

Specifications must be deterministic, as in the example above. For instance, you cannot define attributes conditionally:

# INVALID: do not do this.
unless RUBY_ENGINE == "jruby"
s.extensions << "ext/example/extconf.rb"
end

Constant Summary collapse

NONEXISTENT_SPECIFICATION_VERSION =

The version number of a specification that does not specify one (i.e. RubyGems 0.7 or earlier).

-1
CURRENT_SPECIFICATION_VERSION =

The specification version applied to any new Specification instances created. This should be bumped whenever something in the spec format changes.

Specification Version History:

spec ruby ver ver yyyy-mm-dd description -1 <0.8.0 pre-spec-version-history 1 0.8.0 2004-08-01 Deprecated "test_suite_file" for "test_files" "test_file=x" is a shortcut for "test_files=[x]" 2 0.9.5 2007-10-01 Added "required_rubygems_version" Now forward-compatible with future versions 3 1.3.2 2009-01-03 Added Fixnum validation to specification_version 4 1.9.0 2011-06-07 Added metadata

When updating this number, be sure to also update #to_ruby.

NOTE RubyGems < 1.2 cannot load specification versions > 2.

4
SPECIFICATION_VERSION_HISTORY =

An informal list of changes to the specification. The highest-valued key should be equal to the CURRENT_SPECIFICATION_VERSION.

{ # :nodoc:
  -1 => ["(RubyGems versions up to and including 0.7 did not have versioned specifications)"],
  1 => [
    'Deprecated "test_suite_file" in favor of the new, but equivalent, "test_files"',
    '"test_file=x" is a shortcut for "test_files=[x]"',
  ],
  2 => [
    'Added "required_rubygems_version"',
    "Now forward-compatible with future versions",
  ],
  3 => [
    "Added Fixnum validation to the specification_version",
  ],
  4 => [
    "Added sandboxed freeform metadata to the specification version.",
  ],
}.freeze
MARSHAL_FIELDS =

:nodoc:

{ # :nodoc:
  -1 => 16,
  1 => 16,
  2 => 16,
  3 => 17,
  4 => 18,
}.freeze
TODAY =

:nodoc:

Time.utc(today.year, today.month, today.day)
VALID_NAME_PATTERN =

:nodoc:

/\A[a-zA-Z0-9\.\-\_]+\z/
INITIALIZE_CODE_FOR_DEFAULTS =

rubocop:disable Style/MutableConstant

{}
NOT_FOUND =

Sentinel object to represent "not found" stubs

Struct.new(:to_spec, :this).new
REMOVED_METHODS =

Tracking removed method calls to warn users during build time.

[:rubyforge_project=, :mark_version].freeze
LATEST_RUBY_WITHOUT_PATCH_VERSIONS =
Gem::Version.new("2.1")
DateLike =

:nodoc:

Object.new
DateTimeFormat =

:nodoc:

/\A
(\d{4})-(\d{2})-(\d{2})
(\s+ \d{2}:\d{2}:\d{2}\.\d+ \s* (Z | [-+]\d\d:\d\d) )?
\Z/x
@@required_attributes =

List of attribute names: [:name, :version, ...]

[:rubygems_version,
:specification_version,
:name,
:version,
:date,
:summary,
:require_paths]
@@default_value =

Map of attribute names to default values.

{
  authors: [],
  autorequire: nil,
  bindir: "bin",
  cert_chain: [],
  date: nil,
  dependencies: [],
  description: nil,
  email: nil,
  executables: [],
  extensions: [],
  extra_rdoc_files: [],
  files: [],
  homepage: nil,
  licenses: [],
  metadata: {},
  name: nil,
  platform: Gem::Platform::RUBY,
  post_install_message: nil,
  rdoc_options: [],
  require_paths: ["lib"],
  required_ruby_version: Gem::Requirement.default,
  required_rubygems_version: Gem::Requirement.default,
  requirements: [],
  rubygems_version: Gem::VERSION,
  signing_key: nil,
  specification_version: CURRENT_SPECIFICATION_VERSION,
  summary: nil,
  test_files: [],
  version: nil,
}.freeze
@@attributes =
@@default_value.keys.sort_by(&:to_s)
@@array_attributes =
@@default_value.select {|_k,v| v.is_a?(Array) }.keys

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(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:



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# File 'lib/rubygems/specification.rb', line 1956

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) ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 2067

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

Instance Attribute Details

#activatedObject Also known as: activated?

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



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

def activated
  @activated
end

#autorequireObject

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

Deprecated: It is neither supported nor functional.



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# File 'lib/rubygems/specification.rb', line 754

def autorequire
  @autorequire
end

#bindirObject

The path in the gem for executable scripts. Usually 'exe'

Usage:

spec.bindir = 'exe'


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# File 'lib/rubygems/specification.rb', line 444

def bindir
  @bindir
end

#cert_chainObject

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



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# File 'lib/rubygems/specification.rb', line 450

def cert_chain
  @cert_chain
end

#descriptionObject

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 = "Rake is a Make-like program implemented in Ruby. Tasks and\ndependencies are specified in standard Ruby syntax.\n"


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# File 'lib/rubygems/specification.rb', line 306

def description
  @description
end

#emailObject

A contact email address (or addresses) for this gem

Usage:

spec.email = '[email protected]'
spec.email = ['[email protected]', '[email protected]']


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# File 'lib/rubygems/specification.rb', line 316

def email
  @email
end

#homepageObject

The URL of this gem's home page

Usage:

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


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# File 'lib/rubygems/specification.rb', line 325

def homepage
  @homepage
end

#metadataObject

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}


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# File 'lib/rubygems/specification.rb', line 421

def 
  
end

#nameObject

This gem's name.

Usage:

spec.name = 'rake'


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# File 'lib/rubygems/specification.rb', line 209

def name
  @name
end

#original_platformObject

Cruft. Use platform.



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# File 'lib/rubygems/specification.rb', line 2136

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

#post_install_messageObject

A message that gets displayed after the gem is installed.

Usage:

spec.post_install_message = "Thanks for installing!"


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# File 'lib/rubygems/specification.rb', line 459

def post_install_message
  @post_install_message
end

#required_ruby_versionObject

The version of Ruby required by this gem

Usage:

spec.required_ruby_version = '>= 2.7.0'


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# File 'lib/rubygems/specification.rb', line 290

def required_ruby_version
  @required_ruby_version
end

#required_rubygems_versionObject

The RubyGems version required by this gem



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# File 'lib/rubygems/specification.rb', line 535

def required_rubygems_version
  @required_rubygems_version
end

#rubygems_versionObject

The version of RubyGems used to create this gem.



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# File 'lib/rubygems/specification.rb', line 730

def rubygems_version
  @rubygems_version
end

#signing_keyObject

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



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# File 'lib/rubygems/specification.rb', line 540

def signing_key
  @signing_key
end

#specification_versionObject

The Gem::Specification version of this gemspec.

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



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# File 'lib/rubygems/specification.rb', line 766

def specification_version
  @specification_version
end

#summaryObject

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"


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# File 'lib/rubygems/specification.rb', line 233

def summary
  @summary
end

#versionObject

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'


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# File 'lib/rubygems/specification.rb', line 222

def version
  @version
end

Class Method Details

._allObject

:nodoc:



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# File 'lib/rubygems/specification.rb', line 768

def self._all # :nodoc:
  specification_record.all
end

._latest_specs(specs, prerelease = false) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 1082

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

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

    result[spec.name] = spec
  end

  result.flat_map(&:last).sort_by(&:name)
end

._load(str) ⇒ Object

Load custom marshal format, re-initializing defaults as needed



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

def self._load(str)
  Gem.load_yaml
  Gem.load_safe_marshal

  yaml_set = false
  retry_count = 0

  array = begin
    Gem::SafeMarshal.safe_load str
  rescue ArgumentError => e
    # Avoid an infinite retry loop when the argument error has nothing to do
    # with the classes not being defined.
    # 1 retry each allowed in case all 3 of
    # - YAML
    # - YAML::Syck::DefaultKey
    # - YAML::PrivateType
    # need to be defined
    raise if retry_count >= 3

    #
    # 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") && !YAML::Syck.const_defined?(:DefaultKey)
    elsif message.include?("YAML::PrivateType") && !YAML.const_defined?(:PrivateType)
      YAML.const_set "PrivateType", Class.new
    end

    retry_count += 1
    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.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]
  # offset due to has_rdoc removal
  spec.instance_variable_set :@licenses,                  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) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 837

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?
    platforms = Gem::Platform.sort_priority(b.platform) <=> Gem::Platform.sort_priority(a.platform)
    next platforms if platforms.nonzero?
    default_gem = a.default_gem_priority <=> b.default_gem_priority
    next default_gem if default_gem.nonzero?
    a.base_dir_priority(gem_path) <=> b.base_dir_priority(gem_path)
  end
end

.add_spec(spec) ⇒ Object

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



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

def self.add_spec(spec)
  specification_record.add_spec(spec)
end

.allObject

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



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# File 'lib/rubygems/specification.rb', line 881

def self.all
  warn "NOTE: Specification.all called from #{caller(1, 1).first}" unless
    Gem::Deprecate.skip
  _all
end

.all=(specs) ⇒ Object

Sets the known specs to specs.



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

def self.all=(specs)
  specification_record.all = specs
end

.all_namesObject

Return full names of all specs in sorted order.



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# File 'lib/rubygems/specification.rb', line 897

def self.all_names
  specification_record.all_names
end

.array_attributesObject

Return the list of all array-oriented instance variables.

Not sure why we need to use so much stupid reflection in here...



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# File 'lib/rubygems/specification.rb', line 906

def self.array_attributes
  @@array_attributes.dup
end

.attribute_namesObject

Return the list of all instance variables.

Not sure why we need to use so much stupid reflection in here...



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# File 'lib/rubygems/specification.rb', line 915

def self.attribute_names
  @@attributes.dup
end

.default_stubs(pattern = "*.gemspec") ⇒ Object

Returns a Gem::StubSpecification for default gems



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# File 'lib/rubygems/specification.rb', line 813

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

.dirsObject

Return the directories that Specification uses to find specs.



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

def self.dirs
  @@dirs ||= Gem::SpecificationRecord.dirs_from(gem_path)
end

.dirs=(dirs) ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 930

def self.dirs=(dirs)
  reset

  @@dirs = Gem::SpecificationRecord.dirs_from(Array(dirs))
end

.each(&block) ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 942

def self.each(&block)
  specification_record.each(&block)
end

.each_gemspec(dirs) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 784

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

.each_spec(dirs) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 796

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) ⇒ Object

Return the best specification that contains the file matching path, among those already activated.



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# File 'lib/rubygems/specification.rb', line 1004

def self.find_active_stub_by_path(path)
  specification_record.find_active_stub_by_path(path)
end

.find_all_by_full_name(full_name) ⇒ Object

Returns every spec that has the given full_name



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# File 'lib/rubygems/specification.rb', line 956

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) ⇒ Object

Returns every spec that matches name and optional requirements.



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

def self.find_all_by_name(name, *requirements)
  specification_record.find_all_by_name(name, *requirements)
end

.find_by_full_name(full_name) ⇒ Object

Find the best specification matching a full_name.



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# File 'lib/rubygems/specification.rb', line 972

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

.find_by_name(name, *requirements) ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 964

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

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

.find_by_path(path) ⇒ Object

Return the best specification that contains the file matching path.



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# File 'lib/rubygems/specification.rb', line 979

def self.find_by_path(path)
  specification_record.find_by_path(path)
end

.find_in_unresolved(path) ⇒ Object

Return currently unresolved specs that contain the file matching path.



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# File 'lib/rubygems/specification.rb', line 1011

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

.find_in_unresolved_tree(path) ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1019

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.conflicts_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) ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 996

def self.find_inactive_by_path(path)
  specification_record.find_inactive_by_path(path)
end

.find_unloaded_by_path(path) ⇒ Object

Return the best specification that contains the file matching path amongst the specs that are not loaded. This method is different than find_inactive_by_path as it will filter out loaded specs by their name.



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# File 'lib/rubygems/specification.rb', line 988

def self.find_unloaded_by_path(path)
  specification_record.find_unloaded_by_path(path)
end

.from_yaml(input) ⇒ Object

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.



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

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) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 792

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

.latest_spec_for(name) ⇒ Object

Return the latest installed spec for gem name.



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# File 'lib/rubygems/specification.rb', line 1078

def self.latest_spec_for(name)
  specification_record.latest_spec_for(name)
end

.latest_specs(prerelease = false) ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1071

def self.latest_specs(prerelease = false)
  specification_record.latest_specs(prerelease)
end

.load(file) ⇒ Object

Loads Ruby format gemspec from file.



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

def self.load(file)
  return unless file

  spec = @load_cache_mutex.synchronize { @load_cache[file] }
  return spec if spec

  return unless File.file?(file)

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

  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, StandardError => e
    warn "Invalid gemspec in [#{file}]: #{e}"
  end

  nil
end

.load_defaultsObject

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



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# File 'lib/rubygems/specification.rb', line 854

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

.non_nil_attributesObject

Specification attributes that must be non-nil



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# File 'lib/rubygems/specification.rb', line 1138

def self.non_nil_attributes
  @@non_nil_attributes.dup
end

.normalize_yaml_input(input) ⇒ Object

Make sure the YAML specification is properly formatted with dashes



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# File 'lib/rubygems/specification.rb', line 1145

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

.outdatedObject

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.



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# File 'lib/rubygems/specification.rb', line 1163

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

.outdated_and_latest_versionObject

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.



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

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) ⇒ Object

Removes spec from the known specs.



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# File 'lib/rubygems/specification.rb', line 873

def self.remove_spec(spec)
  specification_record.remove_spec(spec)
end

.required_attribute?(name) ⇒ Boolean

Is name a required attribute?

Returns:

  • (Boolean)


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

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

.required_attributesObject

Required specification attributes



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# File 'lib/rubygems/specification.rb', line 1206

def self.required_attributes
  @@required_attributes.dup
end

.resetObject

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



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# File 'lib/rubygems/specification.rb', line 1214

def self.reset
  @@dirs = nil
  Gem.pre_reset_hooks.each(&:call)
  @specification_record = nil
  clear_load_cache

  unless unresolved_deps.empty?
    unresolved = unresolved_deps.filter_map do |name, dep|
      matching_versions = find_all_by_name(name)
      next if dep.latest_version? && matching_versions.any?(&:default_gem?)

      [dep, matching_versions.uniq(&:full_name)]
    end.to_h

    unless unresolved.empty?
      warn "WARN: Unresolved or ambiguous specs during Gem::Specification.reset:"
      unresolved.each do |dep, versions|
        warn "      #{dep}"

        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."
    end

    unresolved_deps.clear
  end
  Gem.post_reset_hooks.each(&:call)
end

.specification_recordObject

Keeps track of all currently known specifications



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# File 'lib/rubygems/specification.rb', line 1250

def self.specification_record
  @specification_record ||= Gem::SpecificationRecord.new(dirs)
end

.stubsObject

Returns a Gem::StubSpecification for every installed gem



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# File 'lib/rubygems/specification.rb', line 806

def self.stubs
  specification_record.stubs
end

.stubs_for(name) ⇒ Object

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



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

def self.stubs_for(name)
  specification_record.stubs_for(name)
end

.stubs_for_pattern(pattern, match_platform = true) ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 833

def self.stubs_for_pattern(pattern, match_platform = true) # :nodoc:
  specification_record.stubs_for_pattern(pattern, match_platform)
end

.unresolved_depsObject

DOC: This method needs documented or nodoc'd



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

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

Instance Method Details

#<=>(other) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 1350

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

#==(other) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 1354

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

#_dump(limit) ⇒ Object

Dump only crucial instance variables.

MAINTAIN ORDER! (down with the man)



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# File 'lib/rubygems/specification.rb', line 1367

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,
    ,
  ]
end

#abbreviateObject

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.



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# File 'lib/rubygems/specification.rb', line 1456

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

#activateObject

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.



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# File 'lib/rubygems/specification.rb', line 1397

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

  raise_if_conflicts

  activate_dependencies
  add_self_to_load_path

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

  true
end

#activate_dependenciesObject

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



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# File 'lib/rubygems/specification.rb', line 1421

def activate_dependencies
  unresolved = Gem::Specification.unresolved_deps

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

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

      raise e
    end

    specs = spec_dep.matching_specs(true).uniq(&:full_name)

    if specs.size == 0
      raise Gem::MissingSpecError.new(spec_dep.name, spec_dep.requirement, "at: #{spec_file}")
    elsif 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

#add_bindir(executables) ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1492

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

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

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

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

Usage:

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


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# File 'lib/rubygems/specification.rb', line 564

def add_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_development_dependency(gem, *requirements) ⇒ Object

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.



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# File 'lib/rubygems/specification.rb', line 553

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

#add_self_to_load_pathObject

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



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# File 'lib/rubygems/specification.rb', line 1531

def add_self_to_load_path
  return if default_gem?

  paths = full_require_paths

  Gem.add_to_load_path(*paths)
end

#authorObject

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



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# File 'lib/rubygems/specification.rb', line 1542

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

#author=(o) ⇒ Object

Singular (alternative) writer for #authors

Usage:

spec.author = 'John Jones'


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# File 'lib/rubygems/specification.rb', line 433

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

#authorsObject

The list of author names who wrote this gem.

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


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# File 'lib/rubygems/specification.rb', line 1551

def authors
  @authors ||= []
end

#authors=(value) ⇒ Object

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']


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# File 'lib/rubygems/specification.rb', line 276

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

#base_dirObject



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

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_dirObject

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.



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

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

#bin_file(name) ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1568

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

#build_argsObject

Returns the build_args used to install the gem



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# File 'lib/rubygems/specification.rb', line 1575

def build_args
  if File.exist? build_info_file
    build_info = File.readlines build_info_file
    build_info = build_info.map(&:strip)
    build_info.delete ""
    build_info
  else
    []
  end
end

#build_extensionsObject

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



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# File 'lib/rubygems/specification.rb', line 1590

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 unless File.writable?(base_dir)
  return unless 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_dirObject

Returns the full path to the build info directory



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# File 'lib/rubygems/specification.rb', line 1623

def build_info_dir
  File.join base_dir, "build_info"
end

#build_info_fileObject

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



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# File 'lib/rubygems/specification.rb', line 1631

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

#cache_dirObject

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



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# File 'lib/rubygems/specification.rb', line 1639

def cache_dir
  File.join base_dir, "cache"
end

#cache_fileObject

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



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# File 'lib/rubygems/specification.rb', line 1646

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

#conflictsObject

Return any possible conflicts against the currently loaded specs.



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

def conflicts
  conflicts = {}
  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

#conflicts_when_loaded_with?(list_of_specs) ⇒ Boolean

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

Returns:

  • (Boolean)


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

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

#dateObject

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: https://reproducible-builds.org/specs/source-date-epoch/



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# File 'lib/rubygems/specification.rb', line 1697

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

#date=(date) ⇒ Object

The date this gem was created

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



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# File 'lib/rubygems/specification.rb', line 1717

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_value(name) ⇒ Object

The default value for specification attribute name



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# File 'lib/rubygems/specification.rb', line 1739

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

#dependenciesObject

A list of Gem::Dependency objects this gem depends on.

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



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

def dependencies
  @dependencies ||= []
end

#dependent_gems(check_dev = true) ⇒ Object

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]]


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# File 'lib/rubygems/specification.rb', line 1759

def dependent_gems(check_dev = true)
  out = []
  Gem::Specification.each do |spec|
    deps = check_dev ? spec.dependencies : spec.runtime_dependencies
    deps.each do |dep|
      next unless satisfies_requirement?(dep)
      sats = []
      find_all_satisfiers(dep) do |sat|
        sats << sat
      end
      out << [spec, dep, sats]
    end
  end
  out
end

#dependent_specsObject

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



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# File 'lib/rubygems/specification.rb', line 1778

def dependent_specs
  runtime_dependencies.flat_map(&:to_specs)
end

#development_dependenciesObject

List of dependencies that are used for development



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# File 'lib/rubygems/specification.rb', line 1792

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

#doc_dir(type = nil) ⇒ Object

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"


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# File 'lib/rubygems/specification.rb', line 1804

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) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 1814

def encode_with(coder) # :nodoc:
  coder.add "name", @name
  coder.add "version", @version
  coder.add "platform", platform.to_s
  coder.add "original_platform", original_platform.to_s if platform.to_s != original_platform.to_s

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

#eql?(other) ⇒ Boolean

:nodoc:

Returns:

  • (Boolean)


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# File 'lib/rubygems/specification.rb', line 1827

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

#executableObject

Singular accessor for #executables



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# File 'lib/rubygems/specification.rb', line 1834

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

#executable=(o) ⇒ Object

Singular accessor for #executables



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# File 'lib/rubygems/specification.rb', line 1841

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

#executablesObject

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'


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# File 'lib/rubygems/specification.rb', line 587

def executables
  @executables ||= []
end

#executables=(value) ⇒ Object

Sets executables to value, ensuring it is an array.



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# File 'lib/rubygems/specification.rb', line 1848

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

#extensionsObject

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



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# File 'lib/rubygems/specification.rb', line 604

def extensions
  @extensions ||= []
end

#extensions=(extensions) ⇒ Object

Sets extensions to extensions, ensuring it is an array.



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

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

#extensions_dirObject

The path where this gem installs its extensions.



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# File 'lib/rubygems/specification.rb', line 735

def extensions_dir
  @extensions_dir ||= super
end

#extra_rdoc_filesObject

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']



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# File 'lib/rubygems/specification.rb', line 620

def extra_rdoc_files
  @extra_rdoc_files ||= []
end

#extra_rdoc_files=(files) ⇒ Object

Sets extra_rdoc_files to files, ensuring it is an array.



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# File 'lib/rubygems/specification.rb', line 1862

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

#file_nameObject

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

spec.file_name # => "example-1.0.gem"


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# File 'lib/rubygems/specification.rb', line 1871

def file_name
  "#{full_name}.gem"
end

#filesObject

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" }


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# File 'lib/rubygems/specification.rb', line 256

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) ⇒ Object

Sets files to files, ensuring it is an array.



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# File 'lib/rubygems/specification.rb', line 1878

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

#flatten_require_pathsObject

:nodoc:



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# File 'lib/rubygems/specification.rb', line 2596

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_cacheObject

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



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# File 'lib/rubygems/specification.rb', line 1896

def for_cache
  spec = dup

  spec.files = nil
  spec.test_files = nil

  spec
end

#gem_dirObject

Work around old bundler versions removing my methods Can be removed once RubyGems can no longer install Bundler 2.5



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# File 'lib/rubygems/specification.rb', line 1909

def gem_dir # :nodoc:
  super
end

#gems_dirObject



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# File 'lib/rubygems/specification.rb', line 1913

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

#has_conflicts?Boolean

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

Returns:

  • (Boolean)


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# File 'lib/rubygems/specification.rb', line 1679

def has_conflicts?
  return true unless Gem.env_requirement(name).satisfied_by?(version)
  runtime_dependencies.any? do |dep|
    spec = Gem.loaded_specs[dep.name]
    spec && !spec.satisfies_requirement?(dep)
  end
rescue ArgumentError => e
  raise e, "#{name} #{version}: #{e.message}"
end

#has_unit_tests?Boolean Also known as: has_test_suite?

True if this gem has files in test_files

Returns:

  • (Boolean)


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# File 'lib/rubygems/specification.rb', line 1920

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

#hashObject

:startdoc:



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# File 'lib/rubygems/specification.rb', line 1928

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

#init_with(coder) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 1932

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

#initialize_copy(other_spec) ⇒ Object

Duplicates Array and Gem::Requirement attributes from other_spec so state isn't shared.



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# File 'lib/rubygems/specification.rb', line 1985

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

  @required_ruby_version = other_spec.required_ruby_version.dup
  @required_rubygems_version = other_spec.required_rubygems_version.dup
end

#inspectObject

:nodoc:



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# File 'lib/rubygems/specification.rb', line 2019

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

#installed_by_versionObject

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



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# File 'lib/rubygems/specification.rb', line 629

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

#installed_by_version=(version) ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 637

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

#internal_initObject

:nodoc:



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# File 'lib/rubygems/specification.rb', line 2054

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

#keep_only_files_and_directoriesObject



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# File 'lib/rubygems/specification.rb', line 2535

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_filesObject

Files in the Gem under one of the require_paths



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# File 'lib/rubygems/specification.rb', line 2030

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

#licenseObject

Singular accessor for #licenses



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

def license
  licenses.first
end

#license=(o) ⇒ Object

The license for this gem.

The license must be no more than 64 characters, and should be a single SPDX license identifier from https://spdx.org/licenses/. Ideally, you should pick one that is OSI (Open Source Initiative) https://opensource.org/licenses/ approved.

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

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

RubyGems validates the license against the SPDX license list when you run gem build and warns about unknown or deprecated identifiers. An identifier may carry a trailing + (this version or any later version) and a license exception joined with WITH, for example Apache-2.0 WITH LLVM-exception.

Compound SPDX license expressions such as MIT OR Apache-2.0 are not currently supported. RubyGems treats the whole string as a single identifier and warns that it is invalid. For a gem available under more than one license, set each license as a separate entry with #licenses=.

For a license that has no SPDX identifier, use Nonstandard, or LicenseRef- 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.

Usage:

spec.license = 'MIT'


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# File 'lib/rubygems/specification.rb', line 364

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

#licensesObject

Plural accessor for setting licenses

See #license= for details



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# File 'lib/rubygems/specification.rb', line 2050

def licenses
  @licenses ||= []
end

#licenses=(licenses) ⇒ Object

The license(s) for the library.

Each entry must be a single SPDX license identifier, no more than 64 characters. Entries are validated independently, so a compound expression such as MIT OR Apache-2.0 is not valid as an entry. Listing the identifiers as separate array elements is currently the only way RubyGems supports declaring a dual- or multi-licensed gem.

Note that the array itself does not state how the licenses combine. Include the full text of each license in the gem and describe the exact terms there.

See #license= for more discussion

Usage:

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


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# File 'lib/rubygems/specification.rb', line 386

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

#missing_extensions?Boolean

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

Returns:

  • (Boolean)


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

def missing_extensions?
  return false if RUBY_ENGINE == "jruby"
  return false if extensions.empty?
  return false if default_gem?
  return false if File.exist? gem_build_complete_path

  true
end

#name_tupleObject

Return a NameTuple that represents this Specification



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# File 'lib/rubygems/specification.rb', line 2117

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

#normalizeObject

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.


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# File 'lib/rubygems/specification.rb', line 2100

def normalize
  if defined?(@extra_rdoc_files) && @extra_rdoc_files
    @extra_rdoc_files.uniq!
    @files ||= []
    @files.concat(@extra_rdoc_files)
  end

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

#original_nameObject

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



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# File 'lib/rubygems/specification.rb', line 2125

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

#platformObject

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



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# File 'lib/rubygems/specification.rb', line 2143

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

#platform=(platform) ⇒ Object

The platform this gem runs on.

This is usually Gem::Platform::RUBY or Gem::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 Gem::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


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# File 'lib/rubygems/specification.rb', line 484

def platform=(platform)
  @original_platform = platform

  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
end

#pretty_print(q) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 2147

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 = send attr_name
      current_value = current_value.sort if [:files, :test_files].include? attr_name
      next unless 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

#raise_if_conflictsObject

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



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

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

#raw_require_pathsObject

:nodoc:



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# File 'lib/rubygems/specification.rb', line 2603

def raw_require_paths # :nodoc:
  @require_paths
end

#rdoc_optionsObject

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

Usage:

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


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# File 'lib/rubygems/specification.rb', line 650

def rdoc_options
  @rdoc_options ||= []
end

#rdoc_options=(options) ⇒ Object

Sets rdoc_options to value, ensuring it is an array.



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# File 'lib/rubygems/specification.rb', line 2209

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

#removed_method_callsObject



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# File 'lib/rubygems/specification.rb', line 195

def removed_method_calls
  @removed_method_calls ||= []
end

#require_pathObject

Singular accessor for #require_paths



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# File 'lib/rubygems/specification.rb', line 2216

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

#require_path=(path) ⇒ Object

Singular accessor for #require_paths



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# File 'lib/rubygems/specification.rb', line 2223

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

#require_paths=(val) ⇒ Object

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

See also #require_paths ++ 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 = ['.']


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# File 'lib/rubygems/specification.rb', line 528

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

#requirementsObject

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'


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# File 'lib/rubygems/specification.rb', line 708

def requirements
  @requirements ||= []
end

#requirements=(req) ⇒ Object

Set requirements to req, ensuring it is an array.



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# File 'lib/rubygems/specification.rb', line 2230

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

#reset_nil_attributes_to_defaultObject

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



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# File 'lib/rubygems/specification.rb', line 2575

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 = 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

:nodoc:

Returns:

  • (Boolean)


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# File 'lib/rubygems/specification.rb', line 2234

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

#ri_dirObject

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



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# File 'lib/rubygems/specification.rb', line 2241

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

#runtime_dependenciesObject

List of dependencies that will automatically be activated at runtime.



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# File 'lib/rubygems/specification.rb', line 2274

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

#sanitizeObject

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.



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# File 'lib/rubygems/specification.rb', line 1469

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) ⇒ Object

Sanitize a single string.



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# File 'lib/rubygems/specification.rb', line 1479

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.

Returns:

  • (Boolean)


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# File 'lib/rubygems/specification.rb', line 2290

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

#sort_objObject

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



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# File 'lib/rubygems/specification.rb', line 2298

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

#sourceObject

Used by Gem::Resolver to order Gem::Specification objects



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# File 'lib/rubygems/specification.rb', line 2305

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

#spec_dirObject

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



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# File 'lib/rubygems/specification.rb', line 2313

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

#spec_fileObject

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



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# File 'lib/rubygems/specification.rb', line 2321

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

#spec_nameObject

The default name of the gemspec. See also #file_name

spec.spec_name # => "example-1.0.gemspec"


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# File 'lib/rubygems/specification.rb', line 2330

def spec_name
  "#{full_name}.gemspec"
end

#stubbed?Boolean

Returns:

  • (Boolean)


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# File 'lib/rubygems/specification.rb', line 2554

def stubbed?
  false
end

#test_fileObject

Singular accessor for #test_files



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# File 'lib/rubygems/specification.rb', line 2345

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

#test_file=(file) ⇒ Object

Singular mutator for #test_files



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# File 'lib/rubygems/specification.rb', line 2352

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

#test_filesObject

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



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# File 'lib/rubygems/specification.rb', line 2360

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) ⇒ Object

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']


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

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

#to_rubyObject

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.



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# File 'lib/rubygems/specification.rb', line 2380

def to_ruby
  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 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,
    :metadata,
    :signing_key,
  ]

  @@attributes.each do |attr_name|
    next if handled.include? attr_name
    current_value = 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 = #{ruby_code signing_key}"
  end

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

  unless dependencies.empty?
    result << nil
    result << "  s.specification_version = #{specification_version}"
    result << nil

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

  result << "end"
  result << nil

  result.join "\n"
end

#to_ruby_for_cacheObject

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

See #to_ruby.



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# File 'lib/rubygems/specification.rb', line 2454

def to_ruby_for_cache
  for_cache.to_ruby
end

#to_sObject

:nodoc:



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# File 'lib/rubygems/specification.rb', line 2458

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

#to_specObject

Returns self



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# File 'lib/rubygems/specification.rb', line 2465

def to_spec
  self
end

#to_yaml(opts = {}) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 2469

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) ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 2496

def traverse(trail = [], visited = {}, &block)
  trail.push(self)
  begin
    runtime_dependencies.each do |dep|
      dep.matching_specs(true).each do |dep_spec|
        next if visited.key?(dep_spec)
        visited[dep_spec] = true
        trail.push(dep_spec)
        begin
          result = block[self, dep, dep_spec, trail]
        ensure
          trail.pop
        end
        next if result == :next
        spec_name = dep_spec.name
        dep_spec.traverse(trail, visited, &block) unless
          trail.any? {|s| s.name == spec_name }
      end
    end
  ensure
    trail.pop
  end
end

#validate(packaging = true, strict = false) ⇒ Object

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..



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# File 'lib/rubygems/specification.rb', line 2527

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

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

#validate_for_resolutionObject



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# File 'lib/rubygems/specification.rb', line 2543

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

#yaml_initialize(tag, vals) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 2558

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
    when "platform"
      self.platform = val
    else
      instance_variable_set "@#{ivar}", val
    end
  end
end