Class: Gem::Specification

Inherits:
Object
  • Object
show all
Extended by:
Enumerable, Deprecate
Defined in:
lib/rubygems/specification.rb

Overview

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

spec = Gem::Specification.new do |s|
  s.name = 'example'
  s.version = '1.0'
  s.summary = 'Example gem specification'
  ...
end

For a great way to package gems, use Hoe.

Constant Summary collapse

NONEXISTENT_SPECIFICATION_VERSION =

The 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

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

NOTE RubyGems < 1.2 cannot load specification versions > 2.

3
MARSHAL_FIELDS =

version => # of fields

{ -1 => 16, 1 => 16, 2 => 16, 3 => 17 }
TODAY = 
Time.utc(today.year, today.month, today.day)
@@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                      => TODAY,
  :dependencies              => [],
  :description               => nil,
  :email                     => nil,
  :executables               => [],
  :extensions                => [],
  :extra_rdoc_files          => [],
  :files                     => [],
  :homepage                  => nil,
  :licenses                  => [],
  :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              => [],
  :rubyforge_project         => nil,
  :rubygems_version          => Gem::VERSION,
  :signing_key               => nil,
  :specification_version     => CURRENT_SPECIFICATION_VERSION,
  :summary                   => nil,
  :test_files                => [],
  :version                   => nil,
}
@@attributes = 
@@default_value.keys.sort_by { |s| s.to_s }
@@array_attributes = 
@@default_value.reject { |k,v| v != [] }.keys

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Deprecate

deprecate, skip, skip=, skip_during

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 1331

def initialize name = nil, version = nil
  @loaded = false
  @activated = false
  @loaded_from = nil
  @original_platform = nil

  @@nil_attributes.each do |key|
    instance_variable_set "@#{key}", nil
  end

  @@non_nil_attributes.each do |key|
    default = default_value(key)
    value = case default
            when Time, Numeric, Symbol, true, false, nil then default
            else default.dup
            end

    instance_variable_set "@#{key}", value
  end

  @new_platform = Gem::Platform::RUBY

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

  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

Warn about unknown attributes while loading a spec.



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

def method_missing(sym, *a, &b) # :nodoc:
  if @specification_version > CURRENT_SPECIFICATION_VERSION and
    sym.to_s =~ /=$/ then
    warn "ignoring #{sym} loading #{full_name}" if $DEBUG
  else
    super
  end
end

Instance Attribute Details

#activated ⇒ Object 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 223

def activated
  @activated
end

#autorequire ⇒ Object

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 171

def autorequire
  @autorequire
end

#bindir ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 176

def bindir
  @bindir
end

#cert_chain ⇒ Object

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



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

def cert_chain
  @cert_chain
end

#default_executable ⇒ Object

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.



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# File 'lib/rubygems/specification.rb', line 1016

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

#description ⇒ Object

A long description of this gem



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# File 'lib/rubygems/specification.rb', line 187

def description
  @description
end

#email ⇒ Object

A contact email for this gem

If you are providing multiple authors and multiple emails they should be in the same order such that:

Hash[*spec.authors.zip(spec.emails).flatten]

Gives a hash of author name to email address.



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# File 'lib/rubygems/specification.rb', line 206

def email
  @email
end

#homepage ⇒ Object

The URL of this gem’s home page



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# File 'lib/rubygems/specification.rb', line 211

def homepage
  @homepage
end

#loaded ⇒ Object Also known as: loaded?

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



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# File 'lib/rubygems/specification.rb', line 216

def loaded
  @loaded
end

#loaded_from ⇒ Object

Path this gemspec was loaded from. This attribute is not persisted.



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# File 'lib/rubygems/specification.rb', line 230

def loaded_from
  @loaded_from
end

#name ⇒ Object

This gem’s name



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# File 'lib/rubygems/specification.rb', line 127

def name
  @name
end

#original_platform ⇒ Object

Cruft. Use platform.



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

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

#post_install_message ⇒ Object

A message that gets displayed after the gem is installed



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# File 'lib/rubygems/specification.rb', line 240

def post_install_message
  @post_install_message
end

#require_paths ⇒ Object

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

The default [‘lib’] is typically sufficient.



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# File 'lib/rubygems/specification.rb', line 139

def require_paths
  @require_paths
end

#required_ruby_version ⇒ Object

The version of ruby required by this gem



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# File 'lib/rubygems/specification.rb', line 245

def required_ruby_version
  @required_ruby_version
end

#required_rubygems_version ⇒ Object

The RubyGems version required by this gem



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# File 'lib/rubygems/specification.rb', line 250

def required_rubygems_version
  @required_rubygems_version
end

#rubyforge_project ⇒ Object

The rubyforge project this gem lives under. i.e. RubyGems’ rubyforge_project is “rubygems”.



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

def rubyforge_project
  @rubyforge_project
end

#rubygems_version ⇒ Object

The version of RubyGems used to create this gem.

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



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# File 'lib/rubygems/specification.rb', line 146

def rubygems_version
  @rubygems_version
end

#signing_key ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 261

def signing_key
  @signing_key
end

#specification_version ⇒ Object

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 153

def specification_version
  @specification_version
end

#summary ⇒ Object

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

The description should be more detailed than the summary. For example, you might wish to copy the entire README into the description.



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# File 'lib/rubygems/specification.rb', line 161

def summary
  @summary
end

#version ⇒ Object

This gem’s version



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# File 'lib/rubygems/specification.rb', line 132

def version
  @version
end

Class Method Details

._all ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 263

def self._all # :nodoc:
  unless defined?(@@all) && @@all then
    specs = []

    self.dirs.reverse_each { |dir|
      Dir[File.join(dir, "*.gemspec")].each { |path|
        spec = Gem::Specification.load path.untaint
        # #load returns nil if the spec is bad, so we just ignore
        # it at this stage
        specs << spec if spec
      }
    }

    @@all = specs
    _resort!
  end
  @@all
end

._load(str) ⇒ Object

Load custom marshal format, re-initializing defaults as needed



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# File 'lib/rubygems/specification.rb', line 648

def self._load(str)
  array = Marshal.load str

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

  current_version = CURRENT_SPECIFICATION_VERSION

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

  if array.size < field_count then
    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.instance_variable_set :@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]
  spec.instance_variable_set :@rubyforge_project,         array[10]
  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 :@loaded,                    false
  spec.instance_variable_set :@activated,                 false

  spec
end

._resort! ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 282

def self._resort! # :nodoc:
  @@all.sort! { |a, b|
    names = a.name <=> b.name
    next names if names.nonzero?
    b.version <=> a.version
  }
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 294

def self.add_spec spec
  # TODO: find all extraneous adds
  # puts
  # p :add_spec => [spec.full_name, caller.reject { |s| s =~ /minitest/ }]

  # TODO: flush the rest of the crap from the tests
  # raise "no dupes #{spec.full_name} in #{all_names.inspect}" if
  #   _all.include? spec

  raise "nil spec!" unless spec # TODO: remove once we're happy with tests

  return if _all.include? spec

  _all << spec
  _resort!
end

.add_specs(*specs) ⇒ Object

Adds multiple specs to the known specifications.



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# File 'lib/rubygems/specification.rb', line 314

def self.add_specs *specs
  raise "nil spec!" if specs.any?(&:nil?) # TODO: remove once we're happy

  # TODO: this is much more efficient, but we need the extra checks for now
  # _all.concat specs
  # _resort!

  specs.each do |spec| # TODO: slow
    add_spec spec
  end
end

.all ⇒ Object

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 330

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

.all=(specs) ⇒ Object

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.

– Makes specs the known specs Listen, time is a river Winter comes, code breaks

– wilsonb



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# File 'lib/rubygems/specification.rb', line 348

def self.all= specs
  @@all = specs
end

.all_names ⇒ Object

Return full names of all specs in sorted order.



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# File 'lib/rubygems/specification.rb', line 355

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

.array_attributes ⇒ Object

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 364

def self.array_attributes
  @@array_attributes.dup
end

.attribute_names ⇒ Object

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 373

def self.attribute_names
  @@attributes.dup
end

.dirs ⇒ Object

Return the directories that Specification uses to find specs.



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# File 'lib/rubygems/specification.rb', line 380

def self.dirs
  @@dirs ||= Gem.path.collect { |dir|
    File.join dir, "specifications"
  }
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 390

def self.dirs= dirs
  # TODO: find extra calls to dir=
  # warn "NOTE: dirs= called from #{caller.first} for #{dirs.inspect}"

  self.reset

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

.each ⇒ 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 406

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

  self._all.each do |x|
    yield x
  end
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 417

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_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 429

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) ⇒ Object

Return the best specification that contains the file matching path.



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# File 'lib/rubygems/specification.rb', line 440

def self.find_by_path path
  self.find { |spec|
    spec.contains_requirable_file? 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 449

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

  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 460

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

  specs.reverse_each do |spec|
    trails = []
    spec.traverse do |from_spec, dep, to_spec, trail|
      next unless to_spec.conflicts.empty?
      trails << trail if to_spec.contains_requirable_file? path
    end

    next if trails.empty?

    return trails.map(&:reverse).sort.first.reverse
  end

  []
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 486

def self.from_yaml(input)
  Gem.load_yaml

  input = normalize_yaml_input input
  spec = YAML.load input

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

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

  unless (spec.instance_variables.include? '@specification_version' or
          spec.instance_variables.include? :@specification_version) and
         spec.instance_variable_get :@specification_version
    spec.instance_variable_set :@specification_version,
                               NONEXISTENT_SPECIFICATION_VERSION
  end

  spec
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 514

def self.latest_specs prerelease = false
  result = Hash.new { |h,k| h[k] = {} }
  native = {}

  Gem::Specification._all.reverse_each do |spec|
    next if spec.version.prerelease? unless prerelease

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

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

.load(file) ⇒ Object

Loads Ruby format gemspec from file.



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

def self.load file
  return unless file && File.file?(file)

  file = file.dup.untaint

  code = if defined? Encoding
           File.read file, :encoding => "UTF-8"
         else
           File.read file
         end

  code.untaint

  begin
    spec = eval code, binding, file

    if Gem::Specification === spec
      spec.loaded_from = file.to_s
      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

.non_nil_attributes ⇒ Object

Specification attributes that must be non-nil



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# File 'lib/rubygems/specification.rb', line 568

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 575

def self.normalize_yaml_input(input)
  result = input.respond_to?(:read) ? input.read : input
  result = "--- " + result unless result =~ /\A--- /
  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 ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 589

def self.outdated
  outdateds = []

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

  latest_specs.each do |local|
    dependency = Gem::Dependency.new local.name, ">= #{local.version}"
    remotes    = fetcher.find_matching dependency
    remotes    = remotes.map { |(_, version, _), _| version }
    latest     = remotes.sort.last

    outdateds << local.name if latest and local.version < latest
  end

  outdateds
end

.remove_spec(spec) ⇒ Object

Removes spec from the known specs.



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

def self.remove_spec spec
  # TODO: beat on the tests
  raise "wtf: #{spec.full_name} not in #{all_names.inspect}" unless
    _all.include? spec
  _all.delete spec
end

.required_attribute?(name) ⇒ Boolean

Is name a required attribute?

Returns:

  • (Boolean) 


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

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

.required_attributes ⇒ Object

Required specification attributes



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# File 'lib/rubygems/specification.rb', line 627

def self.required_attributes
  @@required_attributes.dup
end

.reset ⇒ Object

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 635

def self.reset
  @@dirs = nil
  # from = caller.first(10).reject { |s| s =~ /minitest/ }
  # warn ""
  # warn "NOTE: Specification.reset from #{from.inspect}"
  Gem.pre_reset_hooks.each  { |hook| hook.call }
  @@all = nil
  Gem.post_reset_hooks.each { |hook| hook.call }
end

Instance Method Details

#<=>(other) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 693

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

#==(other) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 697

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 710

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

#activate ⇒ Object

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 739

def activate
  raise_if_conflicts

  return false if Gem.loaded_specs[self.name]

  activate_dependencies
  add_self_to_load_path

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

  return true
end

#activate_dependencies ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 759

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

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

      raise e
    end

    specs = spec_dep.to_specs

    if specs.size == 1 then
      specs.first.activate
    else
      name = spec_dep.name
      Gem.unresolved_deps[name] = Gem.unresolved_deps[name].merge spec_dep
    end
  end

  Gem.unresolved_deps.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 788

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

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

#add_development_dependency(gem, *requirements) ⇒ Object

Adds a development dependency named gem with requirements to this Gem. For example:

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 832

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

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

Adds a runtime dependency named gem with requirements to this Gem. For example:

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



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

def add_runtime_dependency(gem, *requirements)
  add_dependency_with_type(gem, :runtime, *requirements)
end

#add_self_to_load_path ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 851

def add_self_to_load_path
  paths = require_paths.map do |path|
    File.join full_gem_path, path
  end

  # gem directories must come after -I and ENV['RUBYLIB']
  insert_index = Gem.load_path_insert_index

  if insert_index then
    # gem directories must come after -I and ENV['RUBYLIB']
    $LOAD_PATH.insert(insert_index, *paths)
  else
    # we are probably testing in core, -I and RUBYLIB don't apply
    $LOAD_PATH.unshift(*paths)
  end
end

#author ⇒ Object

Singular reader for #authors



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# File 'lib/rubygems/specification.rb', line 871

def author
  val = authors and val.first
end

#author=(o) ⇒ Object

Singular writer for #authors



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

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

#authors ⇒ Object

The list of author names who wrote this gem.

If you are providing multiple authors and multiple emails they should be in the same order such that:

Hash[*spec.authors.zip(spec.emails).flatten]

Gives a hash of author name to email address.



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# File 'lib/rubygems/specification.rb', line 892

def authors
  @authors ||= []
end

#authors=(value) ⇒ Object

Sets the list of authors, ensuring it is an array.



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# File 'lib/rubygems/specification.rb', line 899

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

#base_dir ⇒ Object

Returns the full path to the base gem directory.

eg: /usr/local/lib/ruby/gems/1.8



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# File 'lib/rubygems/specification.rb', line 908

def base_dir
  return Gem.dir unless loaded_from
  @base_dir ||= File.dirname File.dirname loaded_from
end

#bin_dir ⇒ Object

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 919

def bin_dir
  @bin_dir ||= File.join gem_dir, bindir # TODO: this is unfortunate
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 926

def bin_file name
  File.join bin_dir, name
end

#cache_dir ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 934

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

#cache_file ⇒ Object Also known as: cache_gem

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



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# File 'lib/rubygems/specification.rb', line 941

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

#conflicts ⇒ Object

Return any possible conflicts against the currently loaded specs.



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# File 'lib/rubygems/specification.rb', line 950

def conflicts
  conflicts = {}
  Gem.loaded_specs.values.each do |spec|
    bad = self.runtime_dependencies.find_all { |dep|
      spec.name == dep.name and not spec.satisfies_requirement? dep
    }

    conflicts[spec] = bad unless bad.empty?
  end
  conflicts
end

#contains_requirable_file?(file) ⇒ Boolean

Return true if this spec can require file.

Returns:

  • (Boolean) 


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

def contains_requirable_file? file
  root = full_gem_path

  require_paths.each do |lib|
    base = "#{root}/#{lib}/#{file}"
    Gem.suffixes.each do |suf|
      path = "#{base}#{suf}"
      return true if File.file? path
    end
  end

  return false
end

#date ⇒ Object

The date this gem was created. Lazily defaults to TODAY.



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# File 'lib/rubygems/specification.rb', line 982

def date
  @date ||= TODAY
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 991

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 /\A(\d{4})-(\d{2})-(\d{2})\Z/ =~ date then
              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, Date 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 1030

def default_value name
  @@default_value[name]
end

#dependencies ⇒ Object

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 1040

def dependencies
  @dependencies ||= []
end

#dependent_gems ⇒ 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 1050

def dependent_gems
  out = []
  Gem::Specification.each do |spec|
    spec.dependencies.each do |dep|
      if self.satisfies_requirement?(dep) then
        sats = []
        find_all_satisfiers(dep) do |sat|
          sats << sat
        end
        out << [spec, dep, sats]
      end
    end
  end
  out
end

#dependent_specs ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1069

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

#development_dependencies ⇒ Object

List of dependencies that are used for development



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

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

#doc_dir ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1090

def doc_dir
  @doc_dir ||= File.join base_dir, 'doc', full_name
end

#encode_with(coder) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 1094

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

:nodoc:

Returns:

  • (Boolean) 


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# File 'lib/rubygems/specification.rb', line 1115

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

#executable ⇒ Object

Singular accessor for #executables



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# File 'lib/rubygems/specification.rb', line 1122

def executable
  val = executables and val.first
end

#executable=(o) ⇒ Object

Singular accessor for #executables



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# File 'lib/rubygems/specification.rb', line 1129

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

#executables ⇒ Object

Executables included in the gem.



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# File 'lib/rubygems/specification.rb', line 1136

def executables
  @executables ||= []
end

#executables=(value) ⇒ Object

Sets executables to value, ensuring it is an array. Don’t use this, push onto the array instead.



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# File 'lib/rubygems/specification.rb', line 1144

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

#extensions ⇒ Object

Extensions to build when installing the gem. See Gem::Installer#build_extensions for valid values.



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# File 'lib/rubygems/specification.rb', line 1153

def extensions
  @extensions ||= []
end

#extensions=(extensions) ⇒ Object

Sets extensions to extensions, ensuring it is an array. Don’t use this, push onto the array instead.



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# File 'lib/rubygems/specification.rb', line 1161

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

#extra_rdoc_files ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1169

def extra_rdoc_files
  @extra_rdoc_files ||= []
end

#extra_rdoc_files=(files) ⇒ Object

Sets extra_rdoc_files to files, ensuring it is an array. Don’t use this, push onto the array instead.



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# File 'lib/rubygems/specification.rb', line 1177

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

#file_name ⇒ Object

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 1187

def file_name
  "#{full_name}.gem"
end

#files ⇒ Object

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.



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# File 'lib/rubygems/specification.rb', line 1200

def files
  # DO NOT CHANGE TO ||= ! This is not a normal accessor. (yes, it sucks)
  @files = [@files,
            @test_files,
            add_bindir(@executables),
            @extra_rdoc_files,
            @extensions,
           ].flatten.uniq.compact
end

#files=(files) ⇒ Object

Sets files to files, ensuring it is an array.



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# File 'lib/rubygems/specification.rb', line 1213

def files= files
  @files = Array files
end

#for_cache ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1231

def for_cache
  spec = dup

  spec.files = nil
  spec.test_files = nil

  spec
end

#full_gem_path ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1243

def full_gem_path
  # TODO: try to get rid of this... or the awkward
  # TODO: also, shouldn't it default to full_name if it hasn't been written?
  return @full_gem_path if defined?(@full_gem_path) && @full_gem_path

  @full_gem_path = File.expand_path File.join(gems_dir, full_name)

  return @full_gem_path if File.directory? @full_gem_path

  @full_gem_path = File.expand_path File.join(gems_dir, original_name)
end

#full_name ⇒ Object

Returns the full name (name-version) of this Gem. Platform information is included (name-version-platform) if it is specified and not the default Ruby platform.



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

def full_name
  if platform == Gem::Platform::RUBY or platform.nil? then
    "#{@name}-#{@version}"
  else
    "#{@name}-#{@version}-#{platform}"
  end
end

#gem_dir ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1272

def gem_dir
  @gem_dir ||= File.expand_path File.join(gems_dir, full_name)
end

#gems_dir ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1280

def gems_dir
  # TODO: this logic seems terribly broken, but tests fail if just base_dir
  @gems_dir ||= File.join(loaded_from && base_dir || Gem.dir, "gems")
end

#has_rdoc ⇒ Object Also known as: has_rdoc?

Deprecated and ignored, defaults to true.

Formerly used to indicate this gem was RDoc-capable.



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# File 'lib/rubygems/specification.rb', line 1290

def has_rdoc
  true
end

#has_rdoc=(ignored) ⇒ Object

Deprecated and ignored.

Formerly used to indicate this gem was RDoc-capable.



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# File 'lib/rubygems/specification.rb', line 1299

def has_rdoc= ignored
  @has_rdoc = true
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 1308

def has_unit_tests?
  not test_files.empty?
end

#hash ⇒ Object

:startdoc:



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# File 'lib/rubygems/specification.rb', line 1316

def hash # :nodoc:
  @@attributes.inject(0) { |hash_code, (name, _)|
    hash_code ^ self.send(name).hash
  }
end

#init_with(coder) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 1322

def init_with coder # :nodoc:
  yaml_initialize coder.tag, coder.map
end

#initialize_copy(other_spec) ⇒ Object

Duplicates array_attributes from other_spec so state isn’t shared.



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

def initialize_copy other_spec
  other_ivars = other_spec.instance_variables
  other_ivars = other_ivars.map { |ivar| ivar.intern } if # for 1.9
    String === other_ivars.first

  self.class.array_attributes.each do |name|
    name = :"@#{name}"
    next unless other_ivars.include? name

    begin
      val = other_spec.instance_variable_get(name)
      if val then
        instance_variable_set name, val.dup
      else
        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

#installation_path ⇒ Object

The directory that this gem was installed into. TODO: rename - horrible. this is the base_dir for a gem path



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# File 'lib/rubygems/specification.rb', line 1392

def installation_path
  loaded_from && base_dir
end

#lib_dirs_glob ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1400

def lib_dirs_glob
  dirs = if self.require_paths.size > 1 then
           "{#{self.require_paths.join(',')}}"
         else
           self.require_paths.first
         end

  "#{self.full_gem_path}/#{dirs}"
end

#lib_files ⇒ Object

Files in the Gem under one of the require_paths



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# File 'lib/rubygems/specification.rb', line 1413

def lib_files
  @files.select do |file|
    require_paths.any? do |path|
      file.index(path) == 0
    end
  end
end

#license ⇒ Object

Singular accessor for #licenses



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# File 'lib/rubygems/specification.rb', line 1424

def license
  val = licenses and val.first
end

#license=(o) ⇒ Object

Singular accessor for #licenses



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# File 'lib/rubygems/specification.rb', line 1431

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

#licenses ⇒ Object

The license(s) for the library. Each license must be a short name, no more than 64 characters.



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# File 'lib/rubygems/specification.rb', line 1439

def licenses
  @licenses ||= []
end

#licenses=(licenses) ⇒ Object

Set licenses to licenses, ensuring it is an array.



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# File 'lib/rubygems/specification.rb', line 1446

def licenses= licenses
  @licenses = Array licenses
end

#mark_version ⇒ Object

Sets the rubygems_version to the current RubyGems version.



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

def mark_version
  @rubygems_version = Gem::VERSION
end

#matches_for_glob(glob) ⇒ Object

Return all files in this gem that match for glob.



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# File 'lib/rubygems/specification.rb', line 1468

def matches_for_glob glob # TODO: rename?
  # TODO: do we need these?? Kill it
  glob = File.join(self.lib_dirs_glob, glob)

  Dir[glob].map { |f| f.untaint } # FIX our tests are broken, run w/ SAFE=1
end

#normalize ⇒ Object

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 1493

def normalize
  if defined?(@extra_rdoc_files) and @extra_rdoc_files then
    @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 ⇒ Object

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 1511

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

#platform ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1529

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

#platform=(platform) ⇒ Object

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

Setting this to any value other than Gem::Platform::RUBY or Gem::Platform::CURRENT is probably wrong.



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

def platform= platform
  if @original_platform.nil? or
     @original_platform == Gem::Platform::RUBY then
    @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

  @new_platform
end

#pretty_print(q) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 1571

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

    # REFACTOR: each_attr - use in to_yaml as well
    @@attributes.each do |attr_name|
      current_value = self.send attr_name
      if current_value != default_value(attr_name) or
         self.class.required_attribute? attr_name then

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

        if attr_name == :date then
          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 ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1600

def raise_if_conflicts
  other = Gem.loaded_specs[self.name]

  if other and self.version != other.version then
    # This gem is already loaded.  If the currently loaded gem is not in the
    # list of candidate gems, then we have a version conflict.

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

    e = Gem::LoadError.new msg
    e.name = self.name
    # TODO: e.requirement = dep.requirement

    raise e
  end

  conf = self.conflicts

  unless conf.empty? then
    y = conf.map { |act,con|
      "#{act.full_name} conflicts with #{con.join(", ")}"
    }.join ", "

    # TODO: improve message by saying who activated `con`

    raise Gem::LoadError, "Unable to activate #{self.full_name}, because #{y}"
  end
end

#rdoc_options ⇒ Object

An ARGV style array of options to RDoc



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# File 'lib/rubygems/specification.rb', line 1632

def rdoc_options
  @rdoc_options ||= []
end

#rdoc_options=(options) ⇒ Object

Sets rdoc_options to value, ensuring it is an array. Don’t use this, push onto the array instead.



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# File 'lib/rubygems/specification.rb', line 1640

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

#require_path ⇒ Object

Singular accessor for #require_paths



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# File 'lib/rubygems/specification.rb', line 1648

def require_path
  val = require_paths and val.first
end

#require_path=(path) ⇒ Object

Singular accessor for #require_paths



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# File 'lib/rubygems/specification.rb', line 1655

def require_path= path
  self.require_paths = [path]
end

#requirements ⇒ Object

An array or things required by this gem. Not used by anything presently.



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# File 'lib/rubygems/specification.rb', line 1677

def requirements
  @requirements ||= []
end

#requirements=(req) ⇒ Object

Set requirements to req, ensuring it is an array. Don’t use this, push onto the array instead.



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# File 'lib/rubygems/specification.rb', line 1685

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

#ri_dir ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1693

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

#runtime_dependencies ⇒ Object

List of dependencies that will automatically be activated at runtime.



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# File 'lib/rubygems/specification.rb', line 1721

def runtime_dependencies
  dependencies.select { |d| d.type == :runtime }
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 1737

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

#sort_obj ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1745

def sort_obj
  # TODO: this is horrible. Deprecate it.
  [@name, @version, @new_platform == Gem::Platform::RUBY ? -1 : 1]
end

#spec_dir ⇒ Object

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 1754

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

#spec_file ⇒ Object

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 1762

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

#spec_name ⇒ Object

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 1771

def spec_name
  "#{full_name}.gemspec"
end

#test_file ⇒ Object

Singular accessor for #test_files



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# File 'lib/rubygems/specification.rb', line 1786

def test_file
  val = test_files and val.first
end

#test_file=(file) ⇒ Object

Singular accessor for #test_files



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# File 'lib/rubygems/specification.rb', line 1793

def test_file= file
  self.test_files = [file]
end

#test_files ⇒ Object

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 1801

def test_files
  # 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 then
    @test_files = [@test_suite_file].flatten
    @test_suite_file = nil
  end
  if defined?(@test_files) and @test_files then
    @test_files
  else
    @test_files = []
  end
end

#test_files=(files) ⇒ Object

Set test_files to files, ensuring it is an array.



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# File 'lib/rubygems/specification.rb', line 1819

def test_files= files
  @test_files = Array files
end

#test_suite_file ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 1823

def test_suite_file # :nodoc:
  # TODO: deprecate
  test_files.first
end

#test_suite_file=(file) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 1828

def test_suite_file= file # :nodoc:
  # TODO: deprecate
  @test_files = [] unless defined? @test_files
  @test_files << file
end

#to_ruby ⇒ Object

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 1839

def to_ruby
  mark_version
  result = []
  result << "# -*- encoding: utf-8 -*-"
  result << nil
  result << "Gem::Specification.new do |s|"

  result << "  s.name = #{ruby_code name}"
  result << "  s.version = #{ruby_code version}"
  unless platform.nil? or platform == Gem::Platform::RUBY then
    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="

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

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

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

  result << "    if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then"

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

  result << "    else"

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

  result << '    end'

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

  result << "end"
  result << nil

  result.join "\n"
end

#to_ruby_for_cache ⇒ Object

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 1915

def to_ruby_for_cache
  for_cache.to_ruby
end

#to_s ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 1919

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

#to_yaml(opts = {}) ⇒ Object

:nodoc:



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# File 'lib/rubygems/specification.rb', line 1923

def to_yaml(opts = {}) # :nodoc:
  if YAML.const_defined?(:ENGINE) && !YAML::ENGINE.syck? then
    super.gsub(/ !!null \n/, " \n")
  else
    YAML.quick_emit object_id, opts do |out|
      out.map taguri, to_yaml_style do |map|
        encode_with map
      end
    end
  end
end

#traverse(trail = [], &block) ⇒ Object

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



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# File 'lib/rubygems/specification.rb', line 1939

def traverse trail = [], &block
  trail = trail + [self]
  runtime_dependencies.each do |dep|
    dep.to_specs.each do |dep_spec|
      block[self, dep, dep_spec, trail + [dep_spec]]
      dep_spec.traverse(trail, &block) unless
        trail.map(&:name).include? dep_spec.name
    end
  end
end

#validate(packaging = true) ⇒ 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 1957

def validate packaging = true
  require 'rubygems/user_interaction'
  extend Gem::UserInteraction
  normalize

  nil_attributes = self.class.non_nil_attributes.find_all do |name|
    instance_variable_get("@#{name}").nil?
  end

  unless nil_attributes.empty? then
    raise Gem::InvalidSpecificationException,
      "#{nil_attributes.join ', '} must not be nil"
  end

  if packaging and rubygems_version != Gem::VERSION then
    raise Gem::InvalidSpecificationException,
          "expected RubyGems version #{Gem::VERSION}, was #{rubygems_version}"
  end

  @@required_attributes.each do |symbol|
    unless self.send symbol then
      raise Gem::InvalidSpecificationException,
            "missing value for attribute #{symbol}"
    end
  end

  unless String === name then
    raise Gem::InvalidSpecificationException,
          "invalid value for attribute name: \"#{name.inspect}\""
  end

  if require_paths.empty? then
    raise Gem::InvalidSpecificationException,
          'specification must have at least one require_path'
  end

  @files.delete_if            { |x| File.directory?(x) }
  @test_files.delete_if       { |x| File.directory?(x) }
  @executables.delete_if      { |x| File.directory?(File.join(@bindir, x)) }
  @extra_rdoc_files.delete_if { |x| File.directory?(x) }
  @extensions.delete_if       { |x| File.directory?(x) }

  non_files = files.reject { |x| File.file?(x) }

  unless not packaging or non_files.empty? then
    raise Gem::InvalidSpecificationException,
          "[\"#{non_files.join "\", \""}\"] are not files"
  end

  unless specification_version.is_a?(Fixnum)
    raise Gem::InvalidSpecificationException,
          'specification_version must be a Fixnum (did you mean version?)'
  end

  case platform
  when Gem::Platform, Gem::Platform::RUBY then # ok
  else
    raise Gem::InvalidSpecificationException,
          "invalid platform #{platform.inspect}, see Gem::Platform"
  end

  self.class.array_attributes.each do |field|
    val = self.send field
    klass = case field
            when :dependencies
              Gem::Dependency
            else
              String
            end

    unless Array === val and val.all? { |x| x.kind_of?(klass) } then
      raise(Gem::InvalidSpecificationException,
            "#{field} must be an Array of #{klass}")
    end
  end

  [:authors].each do |field|
    val = self.send field
    raise Gem::InvalidSpecificationException, "#{field} may not be empty" if
      val.empty?
  end

  licenses.each { |license|
    if license.length > 64
      raise Gem::InvalidSpecificationException,
        "each license must be 64 characters or less"
    end
  }

  # reject lazy developers:

  lazy = '"FIxxxXME" or "TOxxxDO"'.gsub(/xxx/, '')

  unless authors.grep(/FI XME|TO DO/x).empty? then
    raise Gem::InvalidSpecificationException, "#{lazy} is not an author"
  end

  unless Array(email).grep(/FI XME|TO DO/x).empty? then
    raise Gem::InvalidSpecificationException, "#{lazy} is not an email"
  end

  if description =~ /FI XME|TO DO/x then
    raise Gem::InvalidSpecificationException, "#{lazy} is not a description"
  end

  if summary =~ /FI XME|TO DO/x then
    raise Gem::InvalidSpecificationException, "#{lazy} is not a summary"
  end

  if homepage and not homepage.empty? and
     homepage !~ /\A[a-z][a-z\d+.-]*:/i then
    raise Gem::InvalidSpecificationException,
          "\"#{homepage}\" is not a URI"
  end

  # Warnings

  %w[author description email homepage summary].each do |attribute|
    value = self.send attribute
    alert_warning "no #{attribute} specified" if value.nil? or value.empty?
  end

  if description == summary then
    alert_warning 'description and summary are identical'
  end

  # TODO: raise at some given date
  alert_warning "deprecated autorequire specified" if autorequire

  executables.each do |executable|
    executable_path = File.join(bindir, executable)
    shebang = File.read(executable_path, 2) == '#!'

    alert_warning "#{executable_path} is missing #! line" unless shebang
  end

  true
end

#yaml_initialize(tag, vals) ⇒ Object

FIX: have this handle the platform/new_platform/original_platform bullshit



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# File 'lib/rubygems/specification.rb', line 2108

def yaml_initialize(tag, vals) # :nodoc:
  vals.each do |ivar, val|
    instance_variable_set "@#{ivar}", val
  end

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