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Diffstat (limited to 'jni/ruby/lib/rubygems/resolver/specification.rb')
-rw-r--r-- | jni/ruby/lib/rubygems/resolver/specification.rb | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/jni/ruby/lib/rubygems/resolver/specification.rb b/jni/ruby/lib/rubygems/resolver/specification.rb new file mode 100644 index 0000000..4d77293 --- /dev/null +++ b/jni/ruby/lib/rubygems/resolver/specification.rb @@ -0,0 +1,110 @@ +## +# A Resolver::Specification contains a subset of the information +# contained in a Gem::Specification. Only the information necessary for +# dependency resolution in the resolver is included. + +class Gem::Resolver::Specification + + ## + # The dependencies of the gem for this specification + + attr_reader :dependencies + + ## + # The name of the gem for this specification + + attr_reader :name + + ## + # The platform this gem works on. + + attr_reader :platform + + ## + # The set this specification came from. + + attr_reader :set + + ## + # The source for this specification + + attr_reader :source + + ## + # The Gem::Specification for this Resolver::Specification. + # + # Implementers, note that #install updates @spec, so be sure to cache the + # Gem::Specification in @spec when overriding. + + attr_reader :spec + + ## + # The version of the gem for this specification. + + attr_reader :version + + ## + # Sets default instance variables for the specification. + + def initialize + @dependencies = nil + @name = nil + @platform = nil + @set = nil + @source = nil + @version = nil + end + + ## + # Fetches development dependencies if the source does not provide them by + # default (see APISpecification). + + def fetch_development_dependencies # :nodoc: + end + + ## + # The name and version of the specification. + # + # Unlike Gem::Specification#full_name, the platform is not included. + + def full_name + "#{@name}-#{@version}" + end + + ## + # Installs this specification using the Gem::Installer +options+. The + # install method yields a Gem::Installer instance, which indicates the + # gem will be installed, or +nil+, which indicates the gem is already + # installed. + # + # After installation #spec is updated to point to the just-installed + # specification. + + def install options = {} + require 'rubygems/installer' + + destination = options[:install_dir] || Gem.dir + + Gem.ensure_gem_subdirectories destination + + gem = source.download spec, destination + + installer = Gem::Installer.new gem, options + + yield installer if block_given? + + @spec = installer.install + end + + ## + # Returns true if this specification is installable on this platform. + + def installable_platform? + Gem::Platform.match spec.platform + end + + def local? # :nodoc: + false + end +end + |