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ruby--ruby/lib/rubygems/resolver/api_specification.rb
2020-12-23 10:17:41 +09:00

104 lines
2.7 KiB
Ruby

# frozen_string_literal: true
##
# Represents a specification retrieved via the rubygems.org API.
#
# This is used to avoid loading the full Specification object when all we need
# is the name, version, and dependencies.
class Gem::Resolver::APISpecification < Gem::Resolver::Specification
##
# We assume that all instances of this class are immutable;
# so avoid duplicated generation for performance.
@@cache = {}
def self.new(set, api_data)
cache_key = [set, api_data]
cache = @@cache[cache_key]
return cache if cache
@@cache[cache_key] = super
end
##
# Creates an APISpecification for the given +set+ from the rubygems.org
# +api_data+.
#
# See https://guides.rubygems.org/rubygems-org-api/#misc_methods for the
# format of the +api_data+.
def initialize(set, api_data)
super()
@set = set
@name = api_data[:name]
@version = Gem::Version.new(api_data[:number]).freeze
@platform = Gem::Platform.new(api_data[:platform]).freeze
@original_platform = api_data[:platform].freeze
@dependencies = api_data[:dependencies].map do |name, ver|
Gem::Dependency.new(name, ver.split(/\s*,\s*/)).freeze
end.freeze
@required_ruby_version = Gem::Requirement.new(api_data.dig(:requirements, :ruby)).freeze
@required_rubygems_version = Gem::Requirement.new(api_data.dig(:requirements, :rubygems)).freeze
end
def ==(other) # :nodoc:
self.class === other and
@set == other.set and
@name == other.name and
@version == other.version and
@platform == other.platform
end
def hash
@set.hash ^ @name.hash ^ @version.hash ^ @platform.hash
end
def fetch_development_dependencies # :nodoc:
spec = source.fetch_spec Gem::NameTuple.new @name, @version, @platform
@dependencies = spec.dependencies
end
def installable_platform? # :nodoc:
Gem::Platform.match_gem? @platform, @name
end
def pretty_print(q) # :nodoc:
q.group 2, '[APISpecification', ']' do
q.breakable
q.text "name: #{name}"
q.breakable
q.text "version: #{version}"
q.breakable
q.text "platform: #{platform}"
q.breakable
q.text 'dependencies:'
q.breakable
q.pp @dependencies
q.breakable
q.text "set uri: #{@set.dep_uri}"
end
end
##
# Fetches a Gem::Specification for this APISpecification.
def spec # :nodoc:
@spec ||=
begin
tuple = Gem::NameTuple.new @name, @version, @platform
source.fetch_spec tuple
rescue Gem::RemoteFetcher::FetchError
raise if @original_platform == @platform
tuple = Gem::NameTuple.new @name, @version, @original_platform
source.fetch_spec tuple
end
end
def source # :nodoc:
@set.source
end
end