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47f0248b08
* test/rubygems: Ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41873 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
130 lines
2.8 KiB
Ruby
130 lines
2.8 KiB
Ruby
class Gem::DependencyResolver::InstallerSet
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##
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# List of Gem::Specification objects that must always be installed.
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attr_reader :always_install
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##
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# Only install gems in the always_install list
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attr_accessor :ignore_dependencies
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##
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# Do not look in the installed set when finding specifications. This is
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# used by the --install-dir option to `gem install`
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attr_accessor :ignore_installed
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def initialize domain
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@domain = domain
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@f = Gem::SpecFetcher.fetcher
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@all = Hash.new { |h,k| h[k] = [] }
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@always_install = []
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@ignore_dependencies = false
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@ignore_installed = false
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@loaded_remote_specs = []
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@specs = {}
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end
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##
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# Should local gems should be considered?
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def consider_local?
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@domain == :both or @domain == :local
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end
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##
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# Should remote gems should be considered?
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def consider_remote?
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@domain == :both or @domain == :remote
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end
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##
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# Returns an array of IndexSpecification objects matching DependencyRequest
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# +req+.
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def find_all req
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res = []
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dep = req.dependency
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return res if @ignore_dependencies and
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@always_install.none? { |spec| dep.matches_spec? spec }
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name = dep.name
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dep.matching_specs.each do |gemspec|
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next if @always_install.include? gemspec
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res << Gem::DependencyResolver::InstalledSpecification.new(self, gemspec)
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end unless @ignore_installed
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if consider_local? then
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local_source = Gem::Source::Local.new
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if spec = local_source.find_gem(name, dep.requirement) then
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res << Gem::DependencyResolver::IndexSpecification.new(
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self, spec.name, spec.version, local_source, spec.platform)
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end
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end
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if consider_remote? then
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load_remote_specs dep
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@all[name].each do |remote_source, n|
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if dep.match? n then
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res << Gem::DependencyResolver::IndexSpecification.new(
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self, n.name, n.version, remote_source, n.platform)
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end
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end
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end
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res
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end
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def inspect # :nodoc:
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'#<%s domain: %s specs: %p>' % [ self.class, @domain, @specs.keys ]
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end
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##
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# Loads remote prerelease specs if +dep+ is a prerelease dependency
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def load_remote_specs dep
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types = [:released]
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types << :prerelease if dep.prerelease?
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types.each do |type|
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next if @loaded_remote_specs.include? type
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@loaded_remote_specs << type
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list, = @f.available_specs type
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list.each do |uri, specs|
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specs.each do |n|
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@all[n.name] << [uri, n]
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end
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end
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end
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end
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##
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# Called from IndexSpecification to get a true Specification
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# object.
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def load_spec name, ver, source
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key = "#{name}-#{ver}"
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@specs[key] ||= source.fetch_spec Gem::NameTuple.new name, ver
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end
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##
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# No prefetching needed since we load the whole index in initially.
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def prefetch(reqs)
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end
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end
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