| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.maven.properties.internal; |
| |
| import java.util.Locale; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| import org.apache.maven.utils.Os; |
| |
| /** |
| * Assists the project builder. <strong>Warning:</strong> This is an internal utility class that is only public for |
| * technical reasons, it is not part of the public API. In particular, this class can be changed or deleted without |
| * prior notice. |
| * |
| * @since 3.0 |
| */ |
| public class EnvironmentUtils { |
| |
| private static Properties envVars; |
| |
| /** |
| * Adds the environment variables in the form of properties whose keys are prefixed with {@code env.}, e.g. {@code |
| * env.PATH}. Unlike native environment variables, properties are always case-sensitive. For the sake of |
| * determinism, the environment variable names will be normalized to upper case on platforms with case-insensitive |
| * variable lookup. |
| * |
| * @param props The properties to add the environment variables to, may be {@code null}. |
| */ |
| public static void addEnvVars(Properties props) { |
| if (props != null) { |
| if (envVars == null) { |
| Properties tmp = new Properties(); |
| boolean caseSensitive = !Os.IS_WINDOWS; |
| for (Map.Entry<String, String> entry : System.getenv().entrySet()) { |
| String key = "env." |
| + (caseSensitive ? entry.getKey() : entry.getKey().toUpperCase(Locale.ENGLISH)); |
| tmp.setProperty(key, entry.getValue()); |
| } |
| envVars = tmp; |
| } |
| |
| props.putAll(envVars); |
| } |
| } |
| } |