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/*
* Copyright (C) 2009 The Android Open Source Project
*
* 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.
*/
import java.util.Collection;
import java.util.List;
/**
* Factory for filesystem commands.
*/
class Filesystem {
public void move(String source, String target) {
new Command("mv", source, target).execute();
}
/**
* Moves all of the files in {@code source} to {@code target}, one at a
* time. Unlike {@code move}, this approach works even if the target
* directory is nonempty.
*/
public int moveContents(String source, String target) {
return copyContents(true, source, target);
}
/**
* Copies all of the files in {@code source} to {@code target}, one at a
* time. Unlike {@code move}, this approach works even if the target
* directory is nonempty.
*/
public int copyContents(String source, String target) {
return copyContents(false, source, target);
}
private int copyContents(boolean move, String source, String target) {
List<String> files = new Command("find", source, "-type", "f") .execute();
for (String file : files) {
String targetFile = target + "/" + file.substring(source.length());
mkdir(parent(targetFile));
if (move) {
new Command("mv", "-i", file, targetFile).execute();
} else {
new Command("cp", file, targetFile).execute();
}
}
return files.size();
}
private String parent(String file) {
return file.substring(0, file.lastIndexOf('/'));
}
public void mkdir(String dir) {
new Command("mkdir", "-p", dir).execute();
}
public List<String> find(String where, String name) {
return new Command("find", where, "-name", name).execute();
}
public void rm(Collection<String> files) {
new Command.Builder().args("rm", "-r").args(files).execute();
}
public void rm(String file) {
new Command("rm", "-r", file).execute();
}
}
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