File: local_environment.rb

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ruby-aruba 2.3.3-1
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# frozen_string_literal: true

# Aruba
module Aruba
  # Platforms
  module Platforms
    # Local environemnt
    #
    # Wraps logic to make enviroment local and restorable
    class LocalEnvironment
      def initialize(platform)
        @platform = platform
      end

      attr_reader :platform

      # Run in environment
      #
      # @param [Hash] env
      #   The environment
      #
      # @yield
      #   The block of code which should with local ENV
      def call(env)
        old_env = platform.environment_variables.hash_from_env

        ENV.clear
        ENV.update env

        yield if block_given?
      ensure
        ENV.clear
        ENV.update old_env
      end
    end
  end
end