/*
* Copyright 2009 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.file.copy;
import org.gradle.api.file.FileVisitDetails;
import org.gradle.api.file.FileVisitor;
import org.gradle.api.file.RelativePath;
import org.gradle.api.internal.file.DefaultDirectoryWalker;
import org.gradle.api.internal.file.DirectoryWalker;
import org.gradle.util.GFileUtils;
import java.io.File;
import java.util.HashSet;
import java.util.Set;
public class SyncCopySpecVisitor extends DelegatingCopySpecVisitor {
private final Set<RelativePath> visited = new HashSet<RelativePath>();
private File baseDestDir;
private boolean didWork;
public SyncCopySpecVisitor(CopySpecVisitor visitor) {
super(visitor);
}
public void startVisit(CopyAction action) {
baseDestDir = ((FileCopyAction) action).getDestinationDir();
getVisitor().startVisit(action);
}
@Override
public void visitDir(FileVisitDetails dirDetails) {
visited.add(dirDetails.getRelativePath());
getVisitor().visitDir(dirDetails);
}
@Override
public void visitFile(FileVisitDetails fileDetails) {
visited.add(fileDetails.getRelativePath());
getVisitor().visitFile(fileDetails);
}
@Override
public void endVisit() {
FileVisitor visitor = new FileVisitor() {
public void visitDir(FileVisitDetails dirDetails) {
maybeDelete(dirDetails, true);
}
public void visitFile(FileVisitDetails fileDetails) {
maybeDelete(fileDetails, false);
}
private void maybeDelete(FileVisitDetails fileDetails, boolean isDir) {
RelativePath path = fileDetails.getRelativePath();
if (!visited.contains(path)) {
if (isDir) {
GFileUtils.deleteDirectory(fileDetails.getFile());
} else {
GFileUtils.deleteQuietly(fileDetails.getFile());
}
didWork = true;
}
}
};
DirectoryWalker walker = new DefaultDirectoryWalker(visitor).depthFirst();
walker.start(baseDestDir);
visited.clear();
getVisitor().endVisit();
}
@Override
public boolean getDidWork() {
return didWork || getVisitor().getDidWork();
}
}