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2.1.0
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rubygems
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## # BasicSpecification is an abstract class which implements some common code # used by both Specification and StubSpecification. class Gem::BasicSpecification ## # Allows installation of extensions for git: gems. attr_writer :base_dir # :nodoc: ## # Sets the directory where extensions for this gem will be installed. attr_writer :extension_dir # :nodoc: ## # The path this gemspec was loaded from. This attribute is not persisted. attr_reader :loaded_from ## # Allows correct activation of git: and path: gems. attr_writer :full_gem_path # :nodoc: def self.default_specifications_dir File.join(Gem.default_dir, "specifications", "default") end ## # True when the gem has been activated def activated? raise NotImplementedError end ## # Returns the full path to the base gem directory. # # eg: /usr/local/lib/ruby/gems/1.8 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 ## # Return true if this spec can require +file+. def contains_requirable_file? file build_extensions suffixes = Gem.suffixes full_require_paths.any? do |dir| base = "#{dir}/#{file}" suffixes.any? { |suf| File.file? "#{base}#{suf}" } end end def default_gem? loaded_from && File.dirname(loaded_from) == self.class.default_specifications_dir end ## # Returns full path to the directory where gem's extensions are installed. def extension_dir @extension_dir ||= File.expand_path File.join(extensions_dir, full_name) end ## # Returns path to the extensions directory. def extensions_dir @extensions_dir ||= Gem.default_ext_dir_for(base_dir) || File.join(base_dir, 'extensions', Gem::Platform.local.to_s, Gem.extension_api_version) end def find_full_gem_path # :nodoc: # TODO: also, shouldn't it default to full_name if it hasn't been written? path = File.expand_path File.join(gems_dir, full_name) path.untaint path if File.directory? path end private :find_full_gem_path ## # The full path to the gem (install path + full name). 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. @full_gem_path ||= find_full_gem_path end ## # 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. def full_name if platform == Gem::Platform::RUBY or platform.nil? then "#{name}-#{version}".untaint else "#{name}-#{version}-#{platform}".untaint end end ## # Full paths in the gem to add to <code>$LOAD_PATH</code> when this gem is # activated. def full_require_paths full_paths = @require_paths.map do |path| File.join full_gem_path, path end full_paths.unshift extension_dir unless @extensions.empty? full_paths end ## # Returns the full path to this spec's gem directory. # eg: /usr/local/lib/ruby/1.8/gems/mygem-1.0 def gem_dir @gem_dir ||= File.expand_path File.join(gems_dir, full_name) end ## # Returns the full path to the gems directory containing this spec's # gem directory. eg: /usr/local/lib/ruby/1.8/gems def gems_dir # TODO: this logic seems terribly broken, but tests fail if just base_dir @gems_dir ||= File.join(loaded_from && base_dir || Gem.dir, "gems") end ## # Set the path the Specification was loaded from. +path+ is converted to a # String. def loaded_from= path @loaded_from = path && path.to_s @extension_dir = nil @extensions_dir = nil @full_gem_path = nil @gem_dir = nil @gems_dir = nil @base_dir = nil end ## # Name of the gem def name raise NotImplementedError end ## # Platform of the gem def platform raise NotImplementedError end def raw_require_paths # :nodoc: @require_paths end ## # Paths in the gem to add to <code>$LOAD_PATH</code> when this gem is # activated. # # See also #require_paths= # # If you have an extension you do not need to add <code>"ext"</code> to the # require path, the extension build process will copy the extension files # into "lib" for you. # # The default value is <code>"lib"</code> # # Usage: # # # If all library files are in the root directory... # spec.require_path = '.' def require_paths return @require_paths if @extensions.empty? relative_extension_dir = File.join '..', '..', 'extensions', Gem::Platform.local.to_s, Gem.extension_api_version, full_name [relative_extension_dir].concat @require_paths end ## # Returns the paths to the source files for use with analysis and # documentation tools. These paths are relative to full_gem_path. def source_paths paths = raw_require_paths.dup if @extensions then ext_dirs = @extensions.map do |extension| extension.split(File::SEPARATOR, 2).first end.uniq paths.concat ext_dirs end paths.uniq end ## # Return a Gem::Specification from this gem def to_spec raise NotImplementedError end ## # Version of the gem def version raise NotImplementedError end ## # Whether this specification is stubbed - i.e. we have information # about the gem from a stub line, without having to evaluate the # entire gemspec file. def stubbed? raise NotImplementedError end end
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