# frozen_string_literal: true
module Bundler
# Represents a lazily loaded gem specification, where the full specification
# is on the source server in rubygems' "quick" index. The proxy object is to
# be seeded with what we're given from the source's abbreviated index - the
# full specification will only be fetched when necessary.
class RemoteSpecification
include MatchRemoteMetadata
include MatchPlatform
include Comparable
attr_reader :name, :version, :platform
attr_writer :dependencies
attr_accessor :source, :remote
def initialize(name, version, platform, spec_fetcher)
@name = name
@version = Gem::Version.create version
@original_platform = platform || Gem::Platform::RUBY
@platform = Gem::Platform.new(platform)
@spec_fetcher = spec_fetcher
@dependencies = nil
end
# Needed before installs, since the arch matters then and quick
# specs don't bother to include the arch in the platform string
def fetch_platform
@platform = _remote_specification.platform
end
def full_name
@full_name ||= if @platform == Gem::Platform::RUBY
"#{@name}-#{@version}"
else
"#{@name}-#{@version}-#{@platform}"
end
end
# Compare this specification against another object. Using sort_obj
# is compatible with Gem::Specification and other Bundler or RubyGems
# objects. Otherwise, use the default Object comparison.
def <=>(other)
if other.respond_to?(:sort_obj)
sort_obj <=> other.sort_obj
else
super
end
end
# Because Rubyforge cannot be trusted to provide valid specifications
# once the remote gem is downloaded, the backend specification will
# be swapped out.
def __swap__(spec)
raise APIResponseInvalidDependenciesError unless spec.dependencies.all? {|d| d.is_a?(Gem::Dependency) }
SharedHelpers.ensure_same_dependencies(self, dependencies, spec.dependencies)
@_remote_specification = spec
end
# Create a delegate used for sorting. This strategy is copied from
# RubyGems 2.23 and ensures that Bundler's specifications can be
# compared and sorted with RubyGems' own specifications.
#
# @see #<=>
# @see Gem::Specification#sort_obj
#
# @return [Array] an object you can use to compare and sort this
# specification against other specifications
def sort_obj
[@name, @version, @platform == Gem::Platform::RUBY ? -1 : 1]
end
def to_s
"#<#{self.class} name=#{name} version=#{version} platform=#{platform}>"
end
def dependencies
@dependencies ||= begin
deps = method_missing(:dependencies)
# allow us to handle when the specs dependencies are an array of array of string
# in order to delay the crash to `#__swap__` where it results in a friendlier error
# see https://github.com/rubygems/bundler/issues/5797
deps = deps.map {|d| d.is_a?(Gem::Dependency) ? d : Gem::Dependency.new(*d) }
deps
end
end
def git_version
return unless loaded_from && source.is_a?(Bundler::Source::Git)
" #{source.revision[0..6]}"
end
private
def to_ary
nil
end
def _remote_specification
@_remote_specification ||= @spec_fetcher.fetch_spec([@name, @version, @original_platform])
@_remote_specification || raise(GemspecError, "Gemspec data for #{full_name} was" \
" missing from the server!")
end
def method_missing(method, *args, &blk)
_remote_specification.send(method, *args, &blk)
end
def respond_to?(method, include_all = false)
super || _remote_specification.respond_to?(method, include_all)
end
public :respond_to?
end
end
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