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opt
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alt
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ruby22
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lib64
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ruby
/
2.2.0
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rubygems
/
resolver
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Filename :
installer_set.rb
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## # A set of gems for installation sourced from remote sources and local .gem # files class Gem::Resolver::InstallerSet < Gem::Resolver::Set ## # List of Gem::Specification objects that must always be installed. attr_reader :always_install # :nodoc: ## # Only install gems in the always_install list attr_accessor :ignore_dependencies # :nodoc: ## # Do not look in the installed set when finding specifications. This is # used by the --install-dir option to `gem install` attr_accessor :ignore_installed # :nodoc: ## # The remote_set looks up remote gems for installation. attr_reader :remote_set # :nodoc: ## # Creates a new InstallerSet that will look for gems in +domain+. def initialize domain super() @domain = domain @remote = consider_remote? @f = Gem::SpecFetcher.fetcher @always_install = [] @ignore_dependencies = false @ignore_installed = false @local = {} @remote_set = Gem::Resolver::BestSet.new @specs = {} end ## # Looks up the latest specification for +dependency+ and adds it to the # always_install list. def add_always_install dependency request = Gem::Resolver::DependencyRequest.new dependency, nil found = find_all request found.delete_if { |s| s.version.prerelease? and not s.local? } unless dependency.prerelease? found = found.select do |s| Gem::Source::SpecificFile === s.source or Gem::Platform::RUBY == s.platform or Gem::Platform.local === s.platform end if found.empty? then exc = Gem::UnsatisfiableDependencyError.new request exc.errors = errors raise exc end newest = found.max_by do |s| [s.version, s.platform == Gem::Platform::RUBY ? -1 : 1] end @always_install << newest.spec end ## # Adds a local gem requested using +dep_name+ with the given +spec+ that can # be loaded and installed using the +source+. def add_local dep_name, spec, source @local[dep_name] = [spec, source] end ## # Should local gems should be considered? def consider_local? # :nodoc: @domain == :both or @domain == :local end ## # Should remote gems should be considered? def consider_remote? # :nodoc: @domain == :both or @domain == :remote end ## # Errors encountered while resolving gems def errors @errors + @remote_set.errors end ## # Returns an array of IndexSpecification objects matching DependencyRequest # +req+. def find_all req res = [] dep = req.dependency return res if @ignore_dependencies and @always_install.none? { |spec| dep.match? spec } name = dep.name dep.matching_specs.each do |gemspec| next if @always_install.any? { |spec| spec.name == gemspec.name } res << Gem::Resolver::InstalledSpecification.new(self, gemspec) end unless @ignore_installed if consider_local? then matching_local = @local.values.select do |spec, _| req.match? spec end.map do |spec, source| Gem::Resolver::LocalSpecification.new self, spec, source end res.concat matching_local local_source = Gem::Source::Local.new if local_spec = local_source.find_gem(name, dep.requirement) then res << Gem::Resolver::IndexSpecification.new( self, local_spec.name, local_spec.version, local_source, local_spec.platform) end end res.delete_if do |spec| spec.version.prerelease? and not dep.prerelease? end res.concat @remote_set.find_all req if consider_remote? res end def prefetch(reqs) @remote_set.prefetch(reqs) if consider_remote? end def prerelease= allow_prerelease super @remote_set.prerelease = allow_prerelease end def inspect # :nodoc: always_install = @always_install.map { |s| s.full_name } '#<%s domain: %s specs: %p always install: %p>' % [ self.class, @domain, @specs.keys, always_install, ] end ## # Called from IndexSpecification to get a true Specification # object. def load_spec name, ver, platform, source # :nodoc: key = "#{name}-#{ver}-#{platform}" @specs.fetch key do tuple = Gem::NameTuple.new name, ver, platform @specs[key] = source.fetch_spec tuple end end ## # Has a local gem for +dep_name+ been added to this set? def local? dep_name # :nodoc: spec, = @local[dep_name] spec end def pretty_print q # :nodoc: q.group 2, '[InstallerSet', ']' do q.breakable q.text "domain: #{@domain}" q.breakable q.text 'specs: ' q.pp @specs.keys q.breakable q.text 'always install: ' q.pp @always_install end end def remote= remote # :nodoc: case @domain when :local then @domain = :both if remote when :remote then @domain = nil unless remote when :both then @domain = :local unless remote end end end