Class: ParallelInstaller

### Home Classes Methods

### In Files

- lib/bundler/installer/parallel_installer.rb

### Parent

Object

### Namespace

- CLASS ParallelInstaller::SpecInstallation

### Methods

- ::call
- ::max_threads
- ::new
- #call
- #collect_post_install_message
- #enqueue_specs
- #process_specs
- #worker_pool

### Files

- bundle
- bundle-config
- bundle-config.txt
- bundle-exec
- bundle-exec.txt
- bundle-install
- bundle-install.txt
- bundle-package
- bundle-package.txt
- bundle-platform
- bundle-platform.txt
- bundle-update
- bundle-update.txt
- bundle.txt
- gemfile.5.txt
- Executable
- Gemfile

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- ParallelInstaller
- ParallelInstaller::SpecInstallation
- Object

No matching classes.

# ParallelInstaller

### Public Class Methods

call(*args) click to toggle source

    # File lib/bundler/installer/parallel_installer.rb, line 56
    def self.call(*args)
      new(*args).call
    end

max_threads() click to toggle source

Returns max number of threads machine can handle with a min of 1

    # File lib/bundler/installer/parallel_installer.rb, line 61
    def self.max_threads
      [Bundler.settings[:jobs].to_i-1, 1].max
    end

new(installer, all_specs, size, standalone, force) click to toggle source

    # File lib/bundler/installer/parallel_installer.rb, line 65
    def initialize(installer, all_specs, size, standalone, force)
      @installer = installer
      @size = size
      @standalone = standalone
      @force = force
      @specs = all_specs.map { |s| SpecInstallation.new(s) }
    end

### Public Instance Methods

call() click to toggle source

    # File lib/bundler/installer/parallel_installer.rb, line 73
    def call
      enqueue_specs
      process_specs until @specs.all?(&:installed?)
    ensure
      worker_pool && worker_pool.stop
    end

collect_post_install_message(spec) click to toggle source

    # File lib/bundler/installer/parallel_installer.rb, line 100
    def collect_post_install_message(spec)
      Bundler::Installer.post_install_messages[spec.name] = spec.post_install_message
    end

enqueue_specs() click to toggle source

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.

    # File lib/bundler/installer/parallel_installer.rb, line 109
    def enqueue_specs
      @specs.select(&:ready_to_enqueue?).each do |spec|
        if spec.dependencies_installed? @specs
          worker_pool.enq spec
          spec.state = :enqueued
        end
      end
    end

process_specs() click to toggle source

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.

    # File lib/bundler/installer/parallel_installer.rb, line 93
    def process_specs
      spec = worker_pool.deq
      spec.state = :installed
      collect_post_install_message spec if spec.has_post_install_message?
      enqueue_specs
    end

worker_pool() click to toggle source

    # File lib/bundler/installer/parallel_installer.rb, line 80
    def worker_pool
      @worker_pool ||= Bundler::Worker.new @size, lambda { |spec_install, worker_num|
        message = @installer.install_gem_from_spec spec_install.spec, @standalone, worker_num, @force
        spec_install.post_install_message = message unless message.nil?
        spec_install
      }
    end

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