View Javadoc
1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.cli;
20  
21  import java.io.File;
22  import java.nio.file.Paths;
23  
24  /**
25   * Resolve relative file path against the given base directory
26   */
27  public class ResolveFile {
28      public static File resolveFile(File file, String baseDirectory) {
29          if (file == null) {
30              return null;
31          } else if (file.isAbsolute()) {
32              return file;
33          } else if (file.getPath().startsWith(File.separator)) {
34              // drive-relative Windows path
35              return file.getAbsoluteFile();
36          } else {
37              return Paths.get(baseDirectory, file.getPath()).normalize().toFile();
38          }
39      }
40  }