/*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * 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.facebook.buck.core.toolchain.tool;

import com.facebook.buck.core.rulekey.AddsToRuleKey;
import com.facebook.buck.core.sourcepath.resolver.SourcePathResolverAdapter;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;

/** An abstraction for describing some tools used as part of the build. */
public interface Tool extends AddsToRuleKey {

  /** @return the prefix command use to run this tool. */
  ImmutableList<String> getCommandPrefix(SourcePathResolverAdapter resolver);

  /** @return the list of environment variables to set when running the command. */
  ImmutableMap<String, String> getEnvironment(SourcePathResolverAdapter resolver);
}
