Class: Puma::Launcher::BundlePruner

Inherits:
Object
  • Object
show all
Defined in:
lib/puma/launcher/bundle_pruner.rb

Overview

This class is used to pickup Gemfile changes during application restarts.

Instance Method Summary collapse

Constructor Details

#initialize(original_argv, extra_runtime_dependencies, log_writer) ⇒ BundlePruner

Returns a new instance of BundlePruner.



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# File 'lib/puma/launcher/bundle_pruner.rb', line 10

def initialize(original_argv, extra_runtime_dependencies, log_writer)
  @original_argv = Array(original_argv)
  @extra_runtime_dependencies = Array(extra_runtime_dependencies)
  @log_writer = log_writer
end

Instance Method Details

#prune ⇒ Object 



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# File 'lib/puma/launcher/bundle_pruner.rb', line 16

def prune
  return if ENV['PUMA_BUNDLER_PRUNED']
  return unless defined?(Bundler)

  require_rubygems_min_version!

  unless puma_wild_path
    log "! Unable to prune Bundler environment, continuing"
    return
  end

  dirs = paths_to_require_after_prune

  log '* Pruning Bundler environment'
  home = ENV['GEM_HOME']
  original_bundle_env = Bundler.original_env.select { |k, v| k.start_with?('BUNDLE_') && v }

  with_unbundled_env do
    ENV['GEM_HOME'] = home
    ENV['PUMA_BUNDLER_PRUNED'] = '1'
    original_bundle_env.each { |k, v| ENV[k] = v }
    args = [Gem.ruby, puma_wild_path, '-I', dirs.join(':')] + @original_argv
    # Defaults to true which breaks socket activation
    args += [{:close_others => false}]
    Kernel.exec(*args)
  end
end