# frozen_string_literal: true

# Copyright The OpenTelemetry Authors
#
# SPDX-License-Identifier: Apache-2.0

def with_env(new_env)
  env_to_reset = ENV.select { |k, _| new_env.key?(k) }
  keys_to_delete = new_env.keys - ENV.keys
  new_env.each_pair { |k, v| ENV[k] = v }
  yield
ensure
  env_to_reset.each_pair { |k, v| ENV[k] = v }
  keys_to_delete.each { |k| ENV.delete(k) }
end

def exportable_timestamp(time = Time.now)
  (time.to_r * 1_000_000_000).to_i
end