text: # Copyright (C) 2016 The Android Open Source Project
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  # http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  # Syntactic sugar for native genrule() rule:
  #   expose ROOT shell variable
  #   expose TMP shell variable
  
  def genrule2(cmd, **kwargs):
    cmd = ' && '.join([
      'ROOT=$$PWD',
      'TMP=$$(mktemp -d || mktemp -d -t bazel-tmp)',
      '(' + cmd + ')',
    ])
    native.genrule(
      cmd = cmd,
      **kwargs)
  