59 lines
2.1 KiB
Java
59 lines
2.1 KiB
Java
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/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.app.backup;
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import android.app.backup.FullBackup.BackupScheme.PathWithRequiredFlags;
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import java.io.File;
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import java.io.IOException;
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import java.util.Collection;
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/** @hide */
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public class BackupUtils {
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private BackupUtils() {}
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/**
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* Returns {@code true} if {@code file} is either directly in {@code canonicalPathList} or is a
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* file contained in a directory in the list.
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*/
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public static boolean isFileSpecifiedInPathList(
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File file, Collection<PathWithRequiredFlags> canonicalPathList) throws IOException {
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for (PathWithRequiredFlags canonical : canonicalPathList) {
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String canonicalPath = canonical.getPath();
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File fileFromList = new File(canonicalPath);
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if (fileFromList.isDirectory()) {
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if (file.isDirectory()) {
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// If they are both directories check exact equals.
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if (file.equals(fileFromList)) {
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return true;
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}
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} else {
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// O/w we have to check if the file is within the directory from the list.
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if (file.toPath().startsWith(canonicalPath)) {
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return true;
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}
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}
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} else if (file.equals(fileFromList)) {
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// Need to check the explicit "equals" so we don't end up with substrings.
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return true;
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}
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}
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return false;
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}
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}
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