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  • rubygems/specification.rb
  • rubygems/test_case.rb

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Gem::Specification

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.summary     = "This is an example!"
  s.description = "Much longer explanation of the example!"
  s.authors     = ["Ruby Coder"]
  s.email       = 'rubycoder@example.com'
  s.files       = ["lib/example.rb"]
  s.homepage    = 'https://rubygems.org/gems/example'
end

Starting in RubyGems 1.9.0, a Specification can hold arbitrary metadata. This metadata is accessed via #metadata and has the following restrictions:

  • 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 UTF8, no binary data is allowed

For example, to add metadata for the location of a bugtracker:

s.metadata = { "bugtracker" => "http://somewhere.com/blah" }

Constants

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
MARSHAL_FIELDS
NONEXISTENT_SPECIFICATION_VERSION

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

SPECIFICATION_VERSION_HISTORY

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

TODAY

Optional gemspec attributes ↑ top

Attributes

bindir[RW]

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

Usage:

spec.bindir = 'bin'
cert_chain[RW]

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

description[R]

A long description of this gem

The description should be more detailed than the summary.

Usage:

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

A contact email address (or addresses) for this gem

Usage:

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

The URL of this gem’s home page

Usage:

spec.homepage = 'http://rake.rubyforge.org'
metadata[RW]

:attr_accessor: metadata

Arbitrary metadata for this gem. An instance of Hash.

metadata is simply a Symbol => String association that contains arbitary data that could be useful to other consumers.

post_install_message[RW]

A message that gets displayed after the gem is installed.

Usage:

spec.post_install_message = "Thanks for installing!"
signing_key[RW]

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

Public Instance Methods

add_development_dependency(gem, *requirements) click to toggle source

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.

 
               # File rubygems/specification.rb, line 400
def add_development_dependency(gem, *requirements)
  add_dependency_with_type(gem, :development, *requirements)
end
            
add_runtime_dependency(gem, *requirements) click to toggle source

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

Usage:

spec.add_runtime_dependency 'example', '~> 1.1', '>= 1.1.4'
 
               # File rubygems/specification.rb, line 411
def add_runtime_dependency(gem, *requirements)
  add_dependency_with_type(gem, :runtime, *requirements)
end
            
Also aliased as: add_dependency
author=(o) click to toggle source

Singular writer for authors

Usage:

spec.author = 'John Jones'
 
               # File rubygems/specification.rb, line 422
def author= o
  self.authors = [o]
end
            
authors=(value) click to toggle source

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

Usage:

spec.authors = ['John Jones', 'Mary Smith']
 
               # File rubygems/specification.rb, line 433
def authors= value
  @authors = Array(value).flatten.grep(String)
end
            
executables() click to toggle source

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.

Usage:

spec.executables << 'rake'
 
               # File rubygems/specification.rb, line 449
def executables
  @executables ||= []
end
            
extensions() click to toggle source

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.

 
               # File rubygems/specification.rb, line 466
def extensions
  @extensions ||= []
end
            
extra_rdoc_files() click to toggle source

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']
 
               # File rubygems/specification.rb, line 482
def extra_rdoc_files
  @extra_rdoc_files ||= []
end
            
license=(o) click to toggle source

The license for this gem.

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

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

You can set multiple licenses with licenses=

Usage:

spec.license = 'MIT'
 
               # File rubygems/specification.rb, line 499
def license=o
  self.licenses = [o]
end
            
licenses=(licenses) click to toggle source

The license(s) for the library.

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

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

Usage:

spec.licenses = ['MIT', 'GPL-2']
 
               # File rubygems/specification.rb, line 514
def licenses= licenses
  @licenses = Array licenses
end
            
rdoc_options() click to toggle source

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

Usage:

spec.rdoc_options << '--title' << 'Rake -- Ruby Make' <<
  '--main' << 'README' <<
  '--line-numbers'
 
               # File rubygems/specification.rb, line 527
def rdoc_options
  @rdoc_options ||= []
end
            
required_ruby_version=(req) click to toggle source

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

$ ruby -v -e 'p Gem.ruby_version'
ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-darwin12.4.0]
#<Gem::Version "2.0.0.247">

Usage:

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

# Only with ruby 2.0.x
spec.required_ruby_version = '~> 2.0'
 
               # File rubygems/specification.rb, line 547
def required_ruby_version= req
  @required_ruby_version = Gem::Requirement.create req
end
            
requirements() click to toggle source

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'
 
               # File rubygems/specification.rb, line 560
def requirements
  @requirements ||= []
end
            
test_files=(files) click to toggle source

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']
 
               # File rubygems/specification.rb, line 572
def test_files= files
  @test_files = Array files
end
            

Required gemspec attributes ↑ top

Attributes

name[RW]

This gem’s name.

Usage:

spec.name = 'rake'
require_paths[RW]

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

If you have an extension you do not need to add "ext" to the require path, the extension build process will copy the extension files into “lib” for you.

The default value is "lib"

Usage:

# If all library files are in the root directory...
spec.require_path = '.'
rubygems_version[RW]

The version of RubyGems used to create this gem.

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

summary[R]

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"
version[R]

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'

Public Instance Methods

files() click to toggle source

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]*',
                      'test/   *'].to_a

# or without Rake...
spec.files = Dir['lib/   *.rb'] + Dir['bin/*']
spec.files += Dir['[A-Z]*'] + Dir['test/**/*']
spec.files.reject! { |fn| fn.include? "CVS" }
 
               # File rubygems/specification.rb, line 303
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.uniq.compact
end
            
platform=(platform) click to toggle source

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 should leave the default value in place unless their 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
 
               # File rubygems/specification.rb, line 247
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

  invalidate_memoized_attributes

  @new_platform
end
            

Specification internals ↑ top

Constants

DateTimeFormat

Attributes

activated[RW]

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

activated?[RW]

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

default_executable[W]

Sets the default executable for this gem.

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

loaded_from[R]

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

required_ruby_version[R]

The version of ruby required by this gem

required_rubygems_version[R]

The RubyGems version required by this gem

rubyforge_project[RW]

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

This option is deprecated.

specification_version[RW]

The Gem::Specification version of this gemspec.

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

Public Class Methods

_load(str) click to toggle source

Load custom marshal format, re-initializing defaults as needed

 
               # File rubygems/specification.rb, line 1076
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

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

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

  spec.instance_variable_set :@rubygems_version,          array[0]
  # spec version
  spec.instance_variable_set :@name,                      array[2]
  spec.instance_variable_set :@version,                   array[3]
  spec.date =                                             array[4]
  spec.instance_variable_set :@summary,                   array[5]
  spec.instance_variable_set :@required_ruby_version,     array[6]
  spec.instance_variable_set :@required_rubygems_version, array[7]
  spec.instance_variable_set :@original_platform,         array[8]
  spec.instance_variable_set :@dependencies,              array[9]
  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 :@metadata,                  array[18]
  spec.instance_variable_set :@loaded,                    false
  spec.instance_variable_set :@activated,                 false

  spec
end
            
add_spec(spec) click to toggle source

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

 
               # File rubygems/specification.rb, line 706
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) click to toggle source

Adds multiple specs to the known specifications.

 
               # File rubygems/specification.rb, line 726
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() click to toggle source

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

 
               # File rubygems/specification.rb, line 742
def self.all
  warn "NOTE: Specification.all called from #{caller.first}" unless
    Gem::Deprecate.skip
  _all
end
            
all=(specs) click to toggle source

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.

 
               # File rubygems/specification.rb, line 760
def self.all= specs
  @@all = specs
end
            
all_names() click to toggle source

Return full names of all specs in sorted order.

 
               # File rubygems/specification.rb, line 767
def self.all_names
  self._all.map(&:full_name)
end
            
array_attributes() click to toggle source

Return the list of all array-oriented instance variables.

 
               # File rubygems/specification.rb, line 776
def self.array_attributes
  @@array_attributes.dup
end
            
attribute_names() click to toggle source

Return the list of all instance variables.

 
               # File rubygems/specification.rb, line 785
def self.attribute_names
  @@attributes.dup
end
            
dirs() click to toggle source

Return the directories that Specification uses to find specs.

 
               # File rubygems/specification.rb, line 792
def self.dirs
  @@dirs ||= Gem.path.collect { |dir|
    File.join dir.dup.untaint, "specifications"
  }
end
            
dirs=(dirs) click to toggle source

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

 
               # File rubygems/specification.rb, line 802
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() click to toggle source

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

 
               # File rubygems/specification.rb, line 818
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) click to toggle source

Returns every spec that matches name and optional requirements.

 
               # File rubygems/specification.rb, line 829
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) click to toggle source

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

 
               # File rubygems/specification.rb, line 841
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) click to toggle source

Return the best specification that contains the file matching path.

 
               # File rubygems/specification.rb, line 852
def self.find_by_path path
  self.find { |spec|
    spec.contains_requirable_file? path
  }
end
            
find_in_unresolved(path) click to toggle source

Return currently unresolved specs that contain the file matching path.

 
               # File rubygems/specification.rb, line 871
def self.find_in_unresolved path
  # TODO: do we need these?? Kill it
  specs = unresolved_deps.values.map { |dep| dep.to_specs }.flatten

  specs.find_all { |spec| spec.contains_requirable_file? path }
end
            
find_in_unresolved_tree(path) click to toggle source

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

 
               # File rubygems/specification.rb, line 882
def self.find_in_unresolved_tree path
  specs = 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
            
find_inactive_by_path(path) click to toggle source

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

 
               # File rubygems/specification.rb, line 862
def self.find_inactive_by_path path
  self.find { |spec|
    spec.contains_requirable_file? path unless spec.activated?
  }
end
            
from_yaml(input) click to toggle source

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.

 
               # File rubygems/specification.rb, line 908
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

  spec.specification_version ||= NONEXISTENT_SPECIFICATION_VERSION
  spec.reset_nil_attributes_to_default

  spec
end
            
latest_specs(prerelease = false) click to toggle source

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

 
               # File rubygems/specification.rb, line 932
def self.latest_specs prerelease = false
  result = Hash.new { |h,k| h[k] = {} }
  native = {}

  Gem::Specification.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) click to toggle source

Loads Ruby format gemspec from file.

 
               # File rubygems/specification.rb, line 952
def self.load file
  return unless file
  file = file.dup.untaint
  return unless File.file?(file)

  code = if defined? Encoding
           File.read file, :mode => 'r: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
            
load_defaults() click to toggle source

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

 
               # File rubygems/specification.rb, line 696
def self.load_defaults
  each_default do |spec|
    Gem.register_default_spec(spec)
  end
end
            
new(name = nil, version = nil) click to toggle source

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

 
               # File rubygems/specification.rb, line 1738
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
            
non_nil_attributes() click to toggle source

Specification attributes that must be non-nil

 
               # File rubygems/specification.rb, line 986
def self.non_nil_attributes
  @@non_nil_attributes.dup
end
            
normalize_yaml_input(input) click to toggle source

Make sure the YAML specification is properly formatted with dashes

 
               # File rubygems/specification.rb, line 993
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() click to toggle source

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

 
               # File rubygems/specification.rb, line 1007
def self.outdated
  outdateds = []

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

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

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

  outdateds
end
            
remove_spec(spec) click to toggle source

Removes spec from the known specs.

 
               # File rubygems/specification.rb, line 1028
def self.remove_spec spec
  _all.delete spec
end
            
required_attribute?(name) click to toggle source

Is name a required attribute?

 
               # File rubygems/specification.rb, line 1035
def self.required_attribute?(name)
  @@required_attributes.include? name.to_sym
end
            
required_attributes() click to toggle source

Required specification attributes

 
               # File rubygems/specification.rb, line 1042
def self.required_attributes
  @@required_attributes.dup
end
            
reset() click to toggle source

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

 
               # File rubygems/specification.rb, line 1050
def self.reset
  @@dirs = nil
  Gem.pre_reset_hooks.each { |hook| hook.call }
  @@all = nil
  unresolved = unresolved_deps
  unless unresolved.empty? then
    w = "W" + "ARN"
    warn "#{w}: Unresolved specs during Gem::Specification.reset:"
    unresolved.values.each do |dep|
      warn "      #{dep}"
    end
    warn "#{w}: Clearing out unresolved specs."
    warn "Please report a bug if this causes problems."
    unresolved.clear
  end
  Gem.post_reset_hooks.each { |hook| hook.call }
end
            
unresolved_deps() click to toggle source

DOC: This method needs documented or nodoc’d

 
               # File rubygems/specification.rb, line 1069
def self.unresolved_deps
  @unresolved_deps ||= Hash.new { |h, n| h[n] = Gem::Dependency.new n }
end
            

Public Instance Methods

_dump(limit) click to toggle source

Dump only crucial instance variables.

 
               # File rubygems/specification.rb, line 1144
def _dump(limit)
  Marshal.dump [
    @rubygems_version,
    @specification_version,
    @name,
    @version,
    date,
    @summary,
    @required_ruby_version,
    @required_rubygems_version,
    @original_platform,
    @dependencies,
    @rubyforge_project,
    @email,
    @authors,
    @description,
    @homepage,
    true, # has_rdoc
    @new_platform,
    @licenses,
    @metadata
  ]
end
            
activate() click to toggle source

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.

 
               # File rubygems/specification.rb, line 1174
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() click to toggle source

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

 
               # File rubygems/specification.rb, line 1194
def activate_dependencies
  unresolved = Gem::Specification.unresolved_deps

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

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

      raise e
    end

    specs = spec_dep.to_specs

    if specs.size == 1 then
      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) click to toggle source

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

 
               # File rubygems/specification.rb, line 1225
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_dependency(gem, *requirements) click to toggle source
add_self_to_load_path() click to toggle source

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

 
               # File rubygems/specification.rb, line 1264
def add_self_to_load_path
  return if default_gem?

  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() click to toggle source

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

 
               # File rubygems/specification.rb, line 1286
def author
  val = authors and val.first
end
            
authors() click to toggle source

The list of author names who wrote this gem.

spec.authors = ['Chad Fowler', 'Jim Weirich', 'Rich Kilmer']
 
               # File rubygems/specification.rb, line 1295
def authors
  @authors ||= []
end
            
base_dir() click to toggle source

Returns the full path to the base gem directory.

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

 
               # File rubygems/specification.rb, line 1304
def base_dir
  return Gem.dir unless loaded_from
  @base_dir ||= if default_gem? then
                  File.dirname File.dirname File.dirname loaded_from
                else
                  File.dirname File.dirname loaded_from
                end
end
            
bin_dir() click to toggle source

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.

 
               # File rubygems/specification.rb, line 1319
def bin_dir
  @bin_dir ||= File.join gem_dir, bindir # TODO: this is unfortunate
end
            
bin_file(name) click to toggle source

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

 
               # File rubygems/specification.rb, line 1326
def bin_file name
  File.join bin_dir, name
end
            
build_args() click to toggle source

Returns the #build_args used to install the gem

 
               # File rubygems/specification.rb, line 1333
def build_args
  if File.exists? build_info_file
    File.readlines(build_info_file).map { |x| x.strip }
  else
    []
  end
end
            
build_info_dir() click to toggle source

Returns the full path to the build info directory

 
               # File rubygems/specification.rb, line 1344
def build_info_dir
  File.join base_dir, "build_info"
end
            
build_info_file() click to toggle source

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

 
               # File rubygems/specification.rb, line 1352
def build_info_file
  File.join build_info_dir, "#{full_name}.info"
end
            
cache_dir() click to toggle source

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

 
               # File rubygems/specification.rb, line 1360
def cache_dir
  @cache_dir ||= File.join base_dir, "cache"
end
            
cache_file() click to toggle source

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

 
               # File rubygems/specification.rb, line 1367
def cache_file
  @cache_file ||= File.join cache_dir, "#{full_name}.gem"
end
            
conflicts() click to toggle source

Return any possible conflicts against the currently loaded specs.

 
               # File rubygems/specification.rb, line 1374
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) click to toggle source

Return true if this spec can require file.

 
               # File rubygems/specification.rb, line 1389
def contains_requirable_file? file
  root     = full_gem_path
  suffixes = Gem.suffixes

  require_paths.any? do |lib|
    base = "#{root}/#{lib}/#{file}"
    suffixes.any? { |suf| File.file? "#{base}#{suf}" }
  end
end
            
date() click to toggle source

The date this gem was created. Lazily defaults to the current UTC date.

There is no need to set this in your gem specification.

 
               # File rubygems/specification.rb, line 1404
def date
  @date ||= TODAY
end
            
date=(date) click to toggle source

The date this gem was created

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

 
               # File rubygems/specification.rb, line 1418
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 then
              Time.utc($1.to_i, $2.to_i, $3.to_i)

            # Workaround for where the date format output from psych isn't
            # parsed as a Time object by syck and thus comes through as a
            # string.
            elsif /\A(\d{4})-(\d{2})-(\d{2}) \d{2}:\d{2}:\d{2}\.\d+?Z\z/ =~ date 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_gem?() click to toggle source
 
               # File rubygems/specification.rb, line 2580
def default_gem?
  loaded_from &&
    File.dirname(loaded_from) == self.class.default_specifications_dir
end
            
default_specifications_dir() click to toggle source
 
               # File rubygems/specification.rb, line 636
def default_specifications_dir
  File.join(Gem.default_dir, "specifications", "default")
end
            
default_value(name) click to toggle source

The default value for specification attribute name

 
               # File rubygems/specification.rb, line 1463
def default_value name
  @@default_value[name]
end
            
dependencies() click to toggle source

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

Use add_dependency or add_development_dependency to add dependencies to a gem.

 
               # File rubygems/specification.rb, line 1473
def dependencies
  @dependencies ||= []
end
            
dependent_gems() click to toggle source

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]]
 
               # File rubygems/specification.rb, line 1483
def dependent_gems
  # REFACTOR: out = []; each; out; ? Really? No #collect love?
  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() click to toggle source

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

 
               # File rubygems/specification.rb, line 1503
def dependent_specs
  runtime_dependencies.map { |dep| dep.to_specs }.flatten
end
            
description=(str) click to toggle source

A detailed description of this gem. See also summary

 
               # File rubygems/specification.rb, line 1510
def description= str
  @description = str.to_s
end
            
development_dependencies() click to toggle source

List of dependencies that are used for development

 
               # File rubygems/specification.rb, line 1517
def development_dependencies
  dependencies.select { |d| d.type == :development }
end
            
doc_dir(type = nil) click to toggle source

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

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

spec.doc_dir 'ri' # => "/path/to/gem_repo/doc/a-1/ri"
 
               # File rubygems/specification.rb, line 1529
def doc_dir type = nil
  @doc_dir ||= File.join base_dir, 'doc', full_name

  if type then
    File.join @doc_dir, type
  else
    @doc_dir
  end
end
            
executable() click to toggle source

Singular accessor for executables

 
               # File rubygems/specification.rb, line 1567
def executable
  val = executables and val.first
end
            
executable=(o) click to toggle source

Singular accessor for executables

 
               # File rubygems/specification.rb, line 1574
def executable=o
  self.executables = [o]
end
            
executables=(value) click to toggle source

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

 
               # File rubygems/specification.rb, line 1582
def executables= value
  # TODO: warn about setting instead of pushing
  @executables = Array(value)
end
            
extensions=(extensions) click to toggle source

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

 
               # File rubygems/specification.rb, line 1591
def extensions= extensions
  # TODO: warn about setting instead of pushing
  @extensions = Array extensions
end
            
extra_rdoc_files=(files) click to toggle source

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

 
               # File rubygems/specification.rb, line 1600
def extra_rdoc_files= files
  # TODO: warn about setting instead of pushing
  @extra_rdoc_files = Array files
end
            
file_name() click to toggle source

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

spec.file_name # => "example-1.0.gem"
 
               # File rubygems/specification.rb, line 1610
def file_name
  "#{full_name}.gem"
end
            
files=(files) click to toggle source

Sets files to files, ensuring it is an array.

 
               # File rubygems/specification.rb, line 1617
def files= files
  @files = Array files
end
            
for_cache() click to toggle source

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

 
               # File rubygems/specification.rb, line 1635
def for_cache
  spec = dup

  spec.files = nil
  spec.test_files = nil

  spec
end
            
full_gem_path() click to toggle source

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

 
               # File rubygems/specification.rb, line 1647
def full_gem_path
  # TODO: This is a heavily used method by gems, so we'll need
  # to aleast just alias it to #gem_dir rather than remove it.

  # 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)
  @full_gem_path.untaint

  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() click to toggle source

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.

 
               # File rubygems/specification.rb, line 1667
def full_name
  @full_name ||= if platform == Gem::Platform::RUBY or platform.nil? then
                   "#{@name}-#{@version}".untaint
                 else
                   "#{@name}-#{@version}-#{platform}".untaint
                 end
end
            
gem_dir() click to toggle source

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

 
               # File rubygems/specification.rb, line 1679
def gem_dir
  @gem_dir ||= File.expand_path File.join(gems_dir, full_name)
end
            
gems_dir() click to toggle source

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

 
               # File rubygems/specification.rb, line 1687
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_unit_tests?() click to toggle source

True if this gem has files in #test_files

 
               # File rubygems/specification.rb, line 1715
def has_unit_tests?
  not test_files.empty?
end
            
initialize_copy(other_spec) click to toggle source

Duplicates ::array_attributes from other_spec so state isn’t shared.

 
               # File rubygems/specification.rb, line 1769
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 then
        instance_variable_set name, val.dup
      elsif Gem.configuration.really_verbose
        warn "WARNING: #{full_name} has an invalid nil value for #{name}"
      end
    rescue TypeError
      e = Gem::FormatException.new            "#{full_name} has an invalid value for #{name}"

      e.file_path = loaded_from
      raise e
    end
  end
end
            
inspect() click to toggle source
 
               # File rubygems/specification.rb, line 1802
def inspect
  if $DEBUG
    super
  else
    "#<#{self.class}:0x#{__id__.to_s(16)} #{full_name}>"
  end
end
            
lib_dirs_glob() click to toggle source

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

 
               # File rubygems/specification.rb, line 1814
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() click to toggle source

Files in the Gem under one of the #require_paths

 
               # File rubygems/specification.rb, line 1827
def lib_files
  @files.select do |file|
    require_paths.any? do |path|
      file.start_with? path
    end
  end
end
            
license() click to toggle source

Singular accessor for licenses

 
               # File rubygems/specification.rb, line 1838
def license
  val = licenses and val.first
end
            
licenses() click to toggle source

Plural accessor for setting licenses

 
               # File rubygems/specification.rb, line 1845
def licenses
  @licenses ||= []
end
            
loaded_from=(path) click to toggle source

Set the location a Specification was loaded from. obj is converted to a String.

 
               # File rubygems/specification.rb, line 1853
def loaded_from= path
  @loaded_from   = path.to_s

  # reset everything @loaded_from depends upon
  @base_dir      = nil
  @bin_dir       = nil
  @cache_dir     = nil
  @cache_file    = nil
  @doc_dir       = nil
  @full_gem_path = nil
  @gem_dir       = nil
  @gems_dir      = nil
  @ri_dir        = nil
  @spec_dir      = nil
  @spec_file     = nil
end
            
mark_version() click to toggle source

Sets the #rubygems_version to the current RubyGems version.

 
               # File rubygems/specification.rb, line 1873
def mark_version
  @rubygems_version = Gem::VERSION
end
            
matches_for_glob(glob) click to toggle source

Return all files in this gem that match for glob.

 
               # File rubygems/specification.rb, line 1880
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
            
name_tuple() click to toggle source

Return a NameTuple that represents this Specification

 
               # File rubygems/specification.rb, line 1922
def name_tuple
  Gem::NameTuple.new name, version, original_platform
end
            
normalize() click to toggle source

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.

 
               # File rubygems/specification.rb, line 1905
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
            
platform() click to toggle source

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

 
               # File rubygems/specification.rb, line 1948
def platform
  @new_platform ||= Gem::Platform::RUBY
end
            
raise_if_conflicts() click to toggle source

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

 
               # File rubygems/specification.rb, line 1981
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=(options) click to toggle source

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

 
               # File rubygems/specification.rb, line 2014
def rdoc_options= options
  # TODO: warn about setting instead of pushing
  @rdoc_options = Array options
end
            
require_path() click to toggle source

Singular accessor for require_paths

 
               # File rubygems/specification.rb, line 2022
def require_path
  val = require_paths and val.first
end
            
require_path=(path) click to toggle source

Singular accessor for require_paths

 
               # File rubygems/specification.rb, line 2029
def require_path= path
  self.require_paths = [path]
end
            
required_rubygems_version=(req) click to toggle source

The RubyGems version required by this gem

 
               # File rubygems/specification.rb, line 2036
def required_rubygems_version= req
  @required_rubygems_version = Gem::Requirement.create req
end
            
requirements=(req) click to toggle source

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

 
               # File rubygems/specification.rb, line 2044
def requirements= req
  # TODO: warn about setting instead of pushing
  @requirements = Array req
end
            
reset_nil_attributes_to_default() click to toggle source

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

 
               # File rubygems/specification.rb, line 2563
def reset_nil_attributes_to_default
  nil_attributes = self.class.non_nil_attributes.find_all do |name|
    !instance_variable_defined?("@#{name}") || instance_variable_get("@#{name}").nil?
  end

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

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

    instance_variable_set "@#{attribute}", value
  end
end
            
ri_dir() click to toggle source

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

 
               # File rubygems/specification.rb, line 2052
def ri_dir
  @ri_dir ||= File.join base_dir, 'ri', full_name
end
            
runtime_dependencies() click to toggle source

List of dependencies that will automatically be activated at runtime.

 
               # File rubygems/specification.rb, line 2085
def runtime_dependencies
  dependencies.select { |d| d.type == :runtime }
end
            
satisfies_requirement?(dependency) click to toggle source

Checks if this specification meets the requirement of dependency.

 
               # File rubygems/specification.rb, line 2101
def satisfies_requirement? dependency
  return @name == dependency.name &&
    dependency.requirement.satisfied_by?(@version)
end
            
sort_obj() click to toggle source

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

 
               # File rubygems/specification.rb, line 2109
def sort_obj
  # TODO: this is horrible. Deprecate it.
  [@name, @version, @new_platform == Gem::Platform::RUBY ? -1 : 1]
end
            
spec_dir() click to toggle source

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

 
               # File rubygems/specification.rb, line 2118
def spec_dir
  @spec_dir ||= File.join base_dir, "specifications"
end
            
spec_file() click to toggle source

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

 
               # File rubygems/specification.rb, line 2126
def spec_file
  @spec_file ||= File.join spec_dir, "#{full_name}.gemspec"
end
            
spec_name() click to toggle source

The default name of the gemspec. See also file_name

spec.spec_name # => "example-1.0.gemspec"
 
               # File rubygems/specification.rb, line 2135
def spec_name
  "#{full_name}.gemspec"
end
            
summary=(str) click to toggle source

A short summary of this gem’s description.

 
               # File rubygems/specification.rb, line 2142
def summary= str
  @summary = str.to_s.strip.
    gsub(/(\w-)\n[ \t]*(\w)/, '\1\2').gsub(/\n[ \t]*/, " ") # so. weird.
end
            
test_file() click to toggle source

Singular accessor for test_files

 
               # File rubygems/specification.rb, line 2150
def test_file
  val = test_files and val.first
end
            
test_file=(file) click to toggle source

Singular mutator for test_files

 
               # File rubygems/specification.rb, line 2157
def test_file= file
  self.test_files = [file]
end
            
test_files() click to toggle source

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

 
               # File rubygems/specification.rb, line 2165
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
            
to_ruby() click to toggle source

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.

REFACTOR: This, plus stuff like ruby_code and pretty_print, should probably be extracted out into some sort of separate class. SRP, do you speak it!??!

 
               # File rubygems/specification.rb, line 2189
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="

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

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

  @@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

  unless dependencies.empty? then
    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"
  end

  result << "end"
  result << nil

  result.join "\n"
end
            
to_ruby_for_cache() click to toggle source

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

See to_ruby.

 
               # File rubygems/specification.rb, line 2272
def to_ruby_for_cache
  for_cache.to_ruby
end
            
traverse(trail = [], &block) click to toggle source

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

 
               # File rubygems/specification.rb, line 2312
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) click to toggle source

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..

 
               # File rubygems/specification.rb, line 2330
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

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

  unless Hash === metadata
    raise Gem::InvalidSpecificationException,
            'metadata must be a hash'
  end

  metadata.keys.each do |k|
    if !k.kind_of?(String)
      raise Gem::InvalidSpecificationException,
              'metadata keys must be a String'
    end

    if k.size > 128
      raise Gem::InvalidSpecificationException,
              "metadata key too large (#{k.size} > 128)"
    end
  end

  metadata.values.each do |k|
    if !k.kind_of?(String)
      raise Gem::InvalidSpecificationException,
              'metadata values must be a String'
    end

    if k.size > 1024
      raise Gem::InvalidSpecificationException,
              "metadata value too large (#{k.size} > 1024)"
    end
  end

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

  alert_warning 'licenses is empty' if licenses.empty?

  validate_permissions

  # reject lazy developers:

  # FIX: Doesn't this just evaluate to "FIXME" or "TODO"?
  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

  dependencies.each do |dep|
    prerelease_dep = dep.requirements_list.any? do |req|
      Gem::Requirement.new(req).prerelease?
    end

    alert_warning "prerelease dependency on #{dep} is not recommended" if
      prerelease_dep
  end

  true
end
            
validate_permissions() click to toggle source

Checks to see if the files to be packaged are world-readable.

 
               # File rubygems/specification.rb, line 2516
def validate_permissions
  return if Gem.win_platform?

  files.each do |file|
    next if File.stat(file).mode & 0444 == 0444
    alert_warning "#{file} is not world-readable"
  end

  executables.each do |name|
    exec = File.join @bindir, name
    next if File.stat(exec).executable?
    alert_warning "#{exec} is not executable"
  end
end
            
version=(version) click to toggle source

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

 
               # File rubygems/specification.rb, line 2536
def version= version
  @version = Gem::Version.create(version)
  self.required_rubygems_version = '> 1.3.1' if @version.prerelease?
  invalidate_memoized_attributes

  return @version
end
            

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