// Copyright 2014 The Bazel Authors. All rights reserved.
//
// 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.
package com.google.devtools.build.lib.analysis.config;

import com.google.devtools.build.lib.cmdline.Label;

import java.io.Serializable;
import java.util.List;

/**
 * Components of --run_under option.
 */
public interface RunUnder extends Serializable {
  /**
   * @return the whole value passed to --run_under option.
   */
  String getValue();

  /**
   * Returns label corresponding to the first word (according to shell
   * tokenization) passed to --run_under.
   *
   * @return if the first word (according to shell tokenization) passed to
   *         --run_under starts with {@code "//"} returns the label
   *         corresponding to that word otherwise {@code null}
   */
  Label getLabel();

  /**
   * @return if the first word (according to shell tokenization) passed to
   *         --run_under starts with {@code "//"} returns {@code null}
   *         otherwise the first word
   */
  String getCommand();

  /**
   * @return everything except the first word (according to shell
   *         tokenization) passed to --run_under.
   */
  List<String> getOptions();
}