# class Gem::AvailableSet

### Constants

Tuple

### Attributes

set[R]

### Public Class Methods

new() click to toggle source

    # File lib/rubygems/available_set.rb, line 9
    def initialize
      @set = []
      @sorted = nil
      @remote = true
    end

### Public Instance Methods

<<(o) click to toggle source

    # File lib/rubygems/available_set.rb, line 23
    def <<(o)
      case o
      when Gem::AvailableSet
        s = o.set
      when Array
        s = o.map do |sp,so|
          if !sp.kind_of?(Gem::Specification) or !so.kind_of?(Gem::Source)
            raise TypeError, "Array must be in [[spec, source], ...] form"
          end

          Tuple.new(sp,so)
        end
      else
        raise TypeError, "must be a Gem::AvailableSet"
      end

      @set += s
      @sorted = nil

      self
    end

add(spec, source) click to toggle source

    # File lib/rubygems/available_set.rb, line 17
    def add(spec, source)
      @set << Tuple.new(spec, source)
      @sorted = nil
      self
    end

all_specs() click to toggle source

    # File lib/rubygems/available_set.rb, line 71
    def all_specs
      @set.map {|t| t.spec }
    end

each() { |tuple| ... } click to toggle source

Yields each `Tuple` in this `AvailableSet`

    # File lib/rubygems/available_set.rb, line 48
    def each
      return enum_for __method__ unless block_given?

      @set.each do |tuple|
        yield tuple
      end
    end

each_spec() { |spec| ... } click to toggle source

Yields the `Gem::Specification` for each `Tuple` in this `AvailableSet`

    # File lib/rubygems/available_set.rb, line 59
    def each_spec
      return enum_for __method__ unless block_given?

      each do |tuple|
        yield tuple.spec
      end
    end

empty?() click to toggle source

    # File lib/rubygems/available_set.rb, line 67
    def empty?
      @set.empty?
    end

find_all(req) click to toggle source

Used by the Resolver, the protocol to use a `AvailableSet` as a search `Set`.

    # File lib/rubygems/available_set.rb, line 125
    def find_all(req)
      dep = req.dependency

      match = @set.find_all do |t|
        dep.match? t.spec
      end

      match.map do |t|
        Gem::Resolver::LocalSpecification.new(self, t.spec, t.source)
      end
    end

inject_into_list(dep_list) click to toggle source

    # File lib/rubygems/available_set.rb, line 161
    def inject_into_list(dep_list)
      @set.each {|t| dep_list.add t.spec }
    end

match_platform!() click to toggle source

    # File lib/rubygems/available_set.rb, line 75
    def match_platform!
      @set.reject! {|t| !Gem::Platform.match_spec?(t.spec) }
      @sorted = nil
      self
    end

pick_best!() click to toggle source

    # File lib/rubygems/available_set.rb, line 140
    def pick_best!
      return self if empty?

      @set = [sorted.first]
      @sorted = nil
      self
    end

prefetch(reqs) click to toggle source

    # File lib/rubygems/available_set.rb, line 137
    def prefetch(reqs)
    end

remove_installed!(dep) click to toggle source

    # File lib/rubygems/available_set.rb, line 148
    def remove_installed!(dep)
      @set.reject! do |t|
        # already locally installed
        Gem::Specification.any? do |installed_spec|
          dep.name == installed_spec.name and
            dep.requirement.satisfied_by? installed_spec.version
        end
      end

      @sorted = nil
      self
    end

size() click to toggle source

    # File lib/rubygems/available_set.rb, line 88
    def size
      @set.size
    end

sorted() click to toggle source

    # File lib/rubygems/available_set.rb, line 81
    def sorted
      @sorted ||= @set.sort do |a,b|
        i = b.spec <=> a.spec
        i != 0 ? i : (a.source <=> b.source)
      end
    end

source_for(spec) click to toggle source

    # File lib/rubygems/available_set.rb, line 92
    def source_for(spec)
      f = @set.find {|t| t.spec == spec }
      f.source
    end

to_request_set(development = :none) click to toggle source

Converts this `AvailableSet` into a RequestSet that can be used to install gems.

If `development` is :none then no development dependencies are installed. Other options are :shallow for only direct development dependencies of the gems in this set or :all for all development dependencies.

    # File lib/rubygems/available_set.rb, line 105
    def to_request_set(development = :none)
      request_set = Gem::RequestSet.new
      request_set.development = :all == development

      each_spec do |spec|
        request_set.always_install << spec

        request_set.gem spec.name, spec.version
        request_set.import spec.development_dependencies if
          :shallow == development
      end

      request_set
    end