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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
Dupable
LOAD_CACHE
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 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 412
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 423
def add_runtime_dependency(gem, *requirements)
  add_dependency_with_type(gem, :runtime, *requirements)
end
            
author=(o) click to toggle source

Singular writer for authors

Usage:

spec.author = 'John Jones'
 
               # File rubygems/specification.rb, line 434
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 445
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 461
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'
 
               # File rubygems/specification.rb, line 476
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 492
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.

Usage:

spec.license = 'MIT'
 
               # File rubygems/specification.rb, line 507
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 522
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 535
def rdoc_options
  @rdoc_options ||= []
end
            
required_ruby_version=(req) click to toggle source

The version of Ruby required by this gem

Usage:

# If it will work with 1.8.6 or greater...
spec.required_ruby_version = '>= 1.8.6'

# Hopefully by now:
spec.required_ruby_version = '>= 1.9.2'
 
               # File rubygems/specification.rb, line 550
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 563
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 575
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.

Usage:

# If all library files are in the root directory...
spec.require_path = '.'

# If you have 'lib' and 'ext' directories...
spec.require_paths << 'ext'
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 315
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, e.g. fxruby-1.2.0-win32.gem.

Usage:

spec.platform = Gem::Platform::Win32
 
               # File rubygems/specification.rb, line 259
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

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.

autorequire[RW]

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

Deprecated: It is neither supported nor functional.

default_executable[W]

Sets the default executable for this gem.

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

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”.

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

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 1713
def initialize name = nil, version = nil
  @loaded = false
  @activated = false
  self.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 = Dupable[key] ? default.dup : default
    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
            

Public Instance Methods

filename=(path) click to toggle source
 
               # File rubygems/specification.rb, line 1820
def filename= path
  super

  @bin_dir       = nil
  @cache_dir     = nil
  @cache_file    = nil
  @doc_dir       = nil
  @gem_dir       = nil
  @ri_dir        = nil
  @spec_dir      = nil
  @spec_file     = nil
end
            
Also aliased as: loaded_from=
initialize_copy(other_spec) click to toggle source

Duplicates array_attributes from other_spec so state isn’t shared.

 
               # File rubygems/specification.rb, line 1740
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 1773
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 1785
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 1798
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 1809
def license
  val = licenses and val.first
end
            
licenses() click to toggle source

Plural accessor for setting licenses

 
               # File rubygems/specification.rb, line 1816
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.

Alias for: filename=
mark_version() click to toggle source

Sets the #rubygems_version to the current RubyGems version.

 
               # File rubygems/specification.rb, line 1847
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 1854
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 1896
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 1879
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 1922
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 1955
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 1988
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 1996
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 2003
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 2010
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 2018
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 2556
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 2030
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 2063
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 2079
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 2087
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 2103
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 2111
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 2120
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 2127
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 2135
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 2142
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 2150
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 2174
def to_ruby
  mark_version
  result = []
  result << "# -*- encoding: utf-8 -*-"
  result << "#{Gem::StubSpecification::PREFIX}#{name} #{version} #{platform} #{require_paths.join("\0")}"
  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 2258
def to_ruby_for_cache
  for_cache.to_ruby
end
            
to_spec() click to toggle source

Returns self

 
               # File rubygems/specification.rb, line 2269
def to_spec
  self
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 2305
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 2323
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/).empty? then
    raise Gem::InvalidSpecificationException, "#{lazy} is not an author"
  end

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

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

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

  if homepage and not homepage.empty? and
     homepage !~ /\A[a-z][a-z\d+.-]*:/ 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 2509
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 2529
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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