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.
The dependencies of the gem for this specification
The name of the gem for this specification
The platform this gem works on.
The set this specification came from.
The source for this specification
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.
The version of the gem for this specification.
# File tmp/rubies/ruby-2.6.10/lib/rubygems/resolver/specification.rb, line 50
def initialize
@dependencies = nil
@name = nil
@platform = nil
@set = nil
@source = nil
@version = nil
end
Sets default instance variables for the specification.
# File tmp/rubies/ruby-2.6.10/lib/rubygems/resolver/specification.rb, line 96
def download(options)
dir = options[:install_dir] || Gem.dir
Gem.ensure_gem_subdirectories dir
source.download spec, dir
end
# File tmp/rubies/ruby-2.6.10/lib/rubygems/resolver/specification.rb, line 71
def full_name
"#{@name}-#{@version}"
end
The name and version of the specification.
Unlike Gem::Specification#full_name, the platform is not included.
# File tmp/rubies/ruby-2.6.10/lib/rubygems/resolver/specification.rb, line 84
def install(options = {})
require 'rubygems/installer'
gem = download options
installer = Gem::Installer.at gem, options
yield installer if block_given?
@spec = installer.install
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.
# File tmp/rubies/ruby-2.6.10/lib/rubygems/resolver/specification.rb, line 107
def installable_platform?
Gem::Platform.match spec.platform
end
Returns true if this specification is installable on this platform.