class Gem::DependencyInstaller

# File lib/rubygems/dependency_installer.rb, line 65
def initialize(options = {})
  @only_install_dir = !options[:install_dir].nil?
  @install_dir = options[:install_dir] || Gem.dir
  @build_root = options[:build_root]

  options = DEFAULT_OPTIONS.merge options

  @bin_dir             = options[:bin_dir]
  @dev_shallow         = options[:dev_shallow]
  @development         = options[:development]
  @document            = options[:document]
  @domain              = options[:domain]
  @env_shebang         = options[:env_shebang]
  @force               = options[:force]
  @format_executable   = options[:format_executable]
  @ignore_dependencies = options[:ignore_dependencies]
  @prerelease          = options[:prerelease]
  @security_policy     = options[:security_policy]
  @user_install        = options[:user_install]
  @wrappers            = options[:wrappers]
  @build_args          = options[:build_args]
  @build_jobs          = options[:build_jobs]
  @build_docs_in_background = options[:build_docs_in_background]
  @dir_mode = options[:dir_mode]
  @data_mode = options[:data_mode]
  @prog_mode = options[:prog_mode]

  # Indicates that we should not try to update any deps unless
  # we absolutely must.
  @minimal_deps = options[:minimal_deps]

  @available      = nil
  @installed_gems = []
  @toplevel_specs = nil

  @cache_dir = options[:cache_dir] || @install_dir

  @errors = []
end

# File lib/rubygems/dependency_installer.rb, line 109
def consider_local?
  @domain == :both || @domain == :local
end

# File lib/rubygems/dependency_installer.rb, line 117
def consider_remote?
  @domain == :both || @domain == :remote
end

# File lib/rubygems/dependency_installer.rb, line 150
def install(dep_or_name, version = Gem::Requirement.default)
  request_set = resolve_dependencies dep_or_name, version

  @installed_gems = []

  options = {
    bin_dir: @bin_dir,
    build_args: @build_args,
    build_jobs: @build_jobs,
    document: @document,
    env_shebang: @env_shebang,
    force: @force,
    format_executable: @format_executable,
    ignore_dependencies: @ignore_dependencies,
    prerelease: @prerelease,
    security_policy: @security_policy,
    user_install: @user_install,
    wrappers: @wrappers,
    build_root: @build_root,
    dir_mode: @dir_mode,
    data_mode: @data_mode,
    prog_mode: @prog_mode,
  }
  options[:install_dir] = @install_dir if @only_install_dir

  request_set.install options do |_, installer|
    @installed_gems << installer.spec if installer
  end

  @installed_gems.sort!

  # Since this is currently only called for docs, we can be lazy and just say
  # it's documentation. Ideally the hook adder could decide whether to be in
  # the background or not, and what to call it.
  in_background "Installing documentation" do
    Gem.done_installing_hooks.each do |hook|
      hook.call self, @installed_gems
    end
  end unless Gem.done_installing_hooks.empty?

  @installed_gems
end