| /* |
| * Copyright (C) 2020 The Dagger 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 dagger.testing.compile; |
| |
| import static com.google.common.base.Strings.isNullOrEmpty; |
| import static com.google.common.collect.MoreCollectors.onlyElement; |
| import static com.google.common.collect.Streams.stream; |
| import static com.google.testing.compile.Compiler.javac; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.io.Files; |
| import com.google.testing.compile.Compiler; |
| import java.io.File; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.Map; |
| |
| /** |
| * A helper class for working with java compiler tests. |
| */ |
| public final class CompilerTests { |
| private CompilerTests() {} |
| |
| /** Returns the {@plainlink File jar file} containing the compiler deps. */ |
| public static File compilerDepsJar() { |
| return stream(Files.fileTraverser().breadthFirst(getRunfilesDir())) |
| .filter(file -> file.getName().endsWith("_compiler_deps_deploy.jar")) |
| .collect(onlyElement()); |
| } |
| |
| /** Returns a {@link Compiler} with the compiler deps jar added to the class path. */ |
| public static Compiler compiler() { |
| return javac().withClasspath(ImmutableList.of(compilerDepsJar())); |
| } |
| |
| private static File getRunfilesDir() { |
| return getRunfilesPath().toFile(); |
| } |
| |
| private static Path getRunfilesPath() { |
| Path propPath = getRunfilesPath(System.getProperties()); |
| if (propPath != null) { |
| return propPath; |
| } |
| |
| Path envPath = getRunfilesPath(System.getenv()); |
| if (envPath != null) { |
| return envPath; |
| } |
| |
| Path cwd = Paths.get("").toAbsolutePath(); |
| return cwd.getParent(); |
| } |
| |
| private static Path getRunfilesPath(Map<?, ?> map) { |
| String runfilesPath = (String) map.get("TEST_SRCDIR"); |
| return isNullOrEmpty(runfilesPath) ? null : Paths.get(runfilesPath); |
| } |
| } |