/*
 * Copyright 2016 the original author or authors.
 *
 * 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 org.gradle.internal.cleanup;

public interface BuildOutputCleanupCache {
    /**
     * Cleans stale output files from previous builds.
     * <p>
     * Stale files are left behind under the following conditions:
     * <p>
     * - The task history is deleted and one or more input files are removed.
     * - The build upgrades or downgrades to a different Gradle version, wasn't executed with that version before and one or more input files are removed.
     */
    void cleanIfStale();
}
