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# frozen_string_literal: true require "bundler/worker" require "bundler/installer/gem_installer" module Bundler class ParallelInstaller class SpecInstallation attr_accessor :spec, :name, :post_install_message, :state, :error def initialize(spec) @spec = spec @name = spec.name @state = :none @post_install_message = "" @error = nil end def installed? state == :installed end def enqueued? state == :enqueued end def failed? state == :failed end def installation_attempted? installed? \|\| failed? end # Only true when spec in neither installed nor already enqueued def ready_to_enqueue? !enqueued? && !installation_attempted? end def has_post_install_message? !post_install_message.empty? end def ignorable_dependency?(dep) dep.type == :development \|\| dep.name == @name end # Checks installed dependencies against spec's dependencies to make # sure needed dependencies have been installed. def dependencies_installed?(all_specs) installed_specs = all_specs.select(&:installed?).map(&:name) dependencies.all? {\|d\| installed_specs.include? d.name } end # Represents only the non-development dependencies, the ones that are # itself and are in the total list. def dependencies @dependencies \|\|= begin all_dependencies.reject {\|dep\| ignorable_dependency? dep } end end def missing_lockfile_dependencies(all_spec_names) deps = all_dependencies.reject {\|dep\| ignorable_dependency? dep } deps.reject {\|dep\| all_spec_names.include? dep.name } end # Represents all dependencies def all_dependencies @spec.dependencies end def to_s "#<#{self.class} #{@spec.full_name} (#{state})>" end end def self.call(args) new(args).call end attr_reader :size def initialize(installer, all_specs, size, standalone, force) @installer = installer @size = size @standalone = standalone @force = force @specs = all_specs.map {\|s\| SpecInstallation.new(s) } @spec_set = all_specs @rake = @specs.find {\|s\| s.name == "rake" } end def call # Since `autoload` has the potential for threading issues on 1.8.7 # TODO: remove in bundler 2.0 require "bundler/gem_remote_fetcher" if RUBY_VERSION < "1.9" check_for_corrupt_lockfile if @size > 1 install_with_worker else install_serially end handle_error if @specs.any?(&:failed?) @specs ensure worker_pool && worker_pool.stop end def check_for_corrupt_lockfile missing_dependencies = @specs.map do \|s\| [ s, s.missing_lockfile_dependencies(@specs.map(&:name)), ] end.reject { \|a\| a.last.empty? } return if missing_dependencies.empty? warning = [] warning << "Your lockfile was created by an old Bundler that left some things out." if @size != 1 warning << "Because of the missing DEPENDENCIES, we can only install gems one at a time, instead of installing #{@size} at a time." @size = 1 end warning << "You can fix this by adding the missing gems to your Gemfile, running bundle install, and then removing the gems from your Gemfile." warning << "The missing gems are:" missing_dependencies.each do \|spec, missing\| warning << "* #{missing.map(&:name).join(", ")} depended upon by #{spec.name}" end Bundler.ui.warn(warning.join("\n")) end private def install_with_worker enqueue_specs process_specs until finished_installing? end def install_serially until finished_installing? raise "failed to find a spec to enqueue while installing serially" unless spec_install = @specs.find(&:ready_to_enqueue?) spec_install.state = :enqueued do_install(spec_install, 0) end end def worker_pool @worker_pool \|\|= Bundler::Worker.new @size, "Parallel Installer", lambda { \|spec_install, worker_num\| do_install(spec_install, worker_num) } end def do_install(spec_install, worker_num) Plugin.hook(Plugin::Events::GEM_BEFORE_INSTALL, spec_install) gem_installer = Bundler::GemInstaller.new( spec_install.spec, @installer, @standalone, worker_num, @force ) success, message = begin gem_installer.install_from_spec rescue RuntimeError => e raise e, "#{e}\n\n#{require_tree_for_spec(spec_install.spec)}" end if success spec_install.state = :installed spec_install.post_install_message = message unless message.nil? else spec_install.state = :failed spec_install.error = "#{message}\n\n#{require_tree_for_spec(spec_install.spec)}" end Plugin.hook(Plugin::Events::GEM_AFTER_INSTALL, spec_install) spec_install end # Dequeue a spec and save its post-install message and then enqueue the # remaining specs. # Some specs might've had to wait til this spec was installed to be # processed so the call to `enqueue_specs` is important after every # dequeue. def process_specs worker_pool.deq enqueue_specs end def finished_installing? @specs.all? do \|spec\| return true if spec.failed? spec.installed? end end def handle_error errors = @specs.select(&:failed?).map(&:error) if exception = errors.find {\|e\| e.is_a?(Bundler::BundlerError) } raise exception end raise Bundler::InstallError, errors.map(&:to_s).join("\n\n") end def require_tree_for_spec(spec) tree = @spec_set.what_required(spec) t = String.new("In #{File.basename(SharedHelpers.default_gemfile)}:\n") tree.each_with_index do \|s, depth\| t << " " * depth.succ << s.name unless tree.last == s t << %( was resolved to #{s.version}, which depends on) end t << %(\n) end t end # Keys in the remains hash represent uninstalled gems specs. # We enqueue all gem specs that do not have any dependencies. # Later we call this lambda again to install specs that depended on # previously installed specifications. We continue until all specs # are installed. def enqueue_specs @specs.select(&:ready_to_enqueue?).each do \|spec\| next if @rake && !@rake.installed? && spec.name != @rake.name if spec.dependencies_installed? @specs spec.state = :enqueued worker_pool.enq spec end end end end end