/*
* Copyright 2011 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.api.internal.changedetection.changes;
import org.gradle.StartParameter;
import org.gradle.api.internal.TaskExecutionHistory;
import org.gradle.api.internal.TaskInternal;
import org.gradle.api.internal.changedetection.TaskArtifactState;
import org.gradle.api.internal.changedetection.TaskArtifactStateRepository;
import org.gradle.api.internal.changedetection.state.FilesSnapshotSet;
import org.gradle.api.tasks.incremental.IncrementalTaskInputs;
import org.gradle.internal.reflect.Instantiator;
import java.util.Collection;
public class ShortCircuitTaskArtifactStateRepository implements TaskArtifactStateRepository {
private final StartParameter startParameter;
private final TaskArtifactStateRepository repository;
private final Instantiator instantiator;
public ShortCircuitTaskArtifactStateRepository(StartParameter startParameter, Instantiator instantiator, TaskArtifactStateRepository repository) {
this.startParameter = startParameter;
this.instantiator = instantiator;
this.repository = repository;
}
public TaskArtifactState getStateFor(final TaskInternal task) {
if (!task.getOutputs().getHasOutput()) { // Only false if no declared outputs AND no Task.upToDateWhen spec. We force to true for incremental tasks.
return new NoHistoryArtifactState();
}
final TaskArtifactState state = repository.getStateFor(task);
if (startParameter.isRerunTasks()) {
return new RerunTaskArtifactState(state, task, "Executed with '--rerun-tasks'.");
}
if (!task.getOutputs().getUpToDateSpec().isSatisfiedBy(task)) {
return new RerunTaskArtifactState(state, task, "Task.upToDateWhen is false.");
}
return state;
}
private class RerunTaskArtifactState implements TaskArtifactState {
private final TaskArtifactState delegate;
private final TaskInternal task;
private final String reason;
private RerunTaskArtifactState(TaskArtifactState delegate, TaskInternal task, String reason) {
this.delegate = delegate;
this.task = task;
this.reason = reason;
}
public boolean isUpToDate(Collection<String> messages) {
messages.add(reason);
return false;
}
public IncrementalTaskInputs getInputChanges() {
return instantiator.newInstance(RebuildIncrementalTaskInputs.class, task, FilesSnapshotSet.EMPTY);
}
public TaskExecutionHistory getExecutionHistory() {
return delegate.getExecutionHistory();
}
public void beforeTask() {
delegate.beforeTask();
}
public void afterTask() {
delegate.afterTask();
}
public void finished() {
delegate.finished();
}
}
}