| /* |
| * 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 org.apache.felix.atomos.utils.substrate.impl; |
| |
| import java.io.BufferedReader; |
| import java.io.IOException; |
| import java.io.InputStreamReader; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Optional; |
| import java.util.stream.Collectors; |
| import java.util.stream.Stream; |
| |
| import org.apache.felix.atomos.utils.substrate.api.NativeImageArguments; |
| |
| public class NativeImageCliUtil |
| { |
| |
| public static final String GRAALVM_HOME = "GRAALVM_HOME"; |
| |
| private static final String JAVA_HOME = "java.home"; |
| |
| public static Path execute(final Path outputDir, |
| final BaseNativeImageArguments arguments) throws Exception |
| { |
| return execute(null, outputDir, arguments); |
| } |
| |
| public static Path execute(final Path nativeImageExec, final Path executionDir, |
| final NativeImageArguments arguments) throws Exception |
| { |
| |
| final Optional<Path> exec = findNativeImageExecutable(nativeImageExec); |
| |
| if (exec.isEmpty()) |
| { |
| throw new Exception("Missing native image executable. Set '" + GRAALVM_HOME |
| + "' with the path as an environment variable"); |
| } |
| |
| final Path resultFile = executionDir.resolve(arguments.name()); |
| |
| final List<String> commands = new ArrayList<>(); |
| commands.add(exec.get().toAbsolutePath().toString()); |
| commands.addAll(arguments.arguments()); |
| |
| final ProcessBuilder pB = new ProcessBuilder(commands); |
| pB.inheritIO(); |
| pB.directory(executionDir.toFile()); |
| |
| final String cmds = pB.command().stream().collect(Collectors.joining(" ")); |
| |
| System.out.println(cmds); |
| |
| final Process process = pB.start(); |
| final int exitValue = process.waitFor(); |
| if (exitValue != 0) |
| { |
| throw new Exception("native-image returns exit value: " + exitValue); |
| } |
| if (Files.exists(resultFile)) |
| { |
| return resultFile; |
| } |
| throw new Exception( |
| "native-image could not be found: " + resultFile.toAbsolutePath().toString()); |
| |
| } |
| |
| public static Optional<Path> findNativeImageExecutable() |
| { |
| return findNativeImageExecutable(null); |
| |
| } |
| |
| public static Optional<Path> findNativeImageExecutable(final Path path) |
| { |
| if (path == null) |
| { |
| Optional<Path> oExec = findNativeImageExecutable(Paths.get("native-image")); |
| if (oExec.isPresent()) |
| { |
| return oExec; |
| } |
| if (System.getenv(GRAALVM_HOME) != null) |
| { |
| oExec = findNativeImageExecutable(Paths.get(System.getenv(GRAALVM_HOME))); |
| if (oExec.isPresent()) |
| { |
| return oExec; |
| } |
| } |
| if (System.getProperty(JAVA_HOME) != null) |
| { |
| oExec = findNativeImageExecutable( |
| Paths.get(System.getProperty(JAVA_HOME))); |
| if (oExec.isPresent()) |
| { |
| return oExec; |
| } |
| } |
| return Optional.empty(); |
| } |
| else if (!Files.exists(path)) |
| { |
| return Optional.empty(); |
| } |
| else if (Files.isDirectory(path)) |
| { |
| final Optional<Path> candidate = findNativeImageExecutable( |
| path.resolve("native-image")); |
| if (candidate.isPresent()) |
| { |
| return candidate; |
| } |
| return findNativeImageExecutable(path.resolve("bin")); |
| } |
| else //file o |
| { |
| |
| final String version = getVersion(path); |
| if (version != null) |
| { |
| return Optional.of(path); |
| } |
| |
| } |
| return Optional.empty(); |
| |
| } |
| |
| public static String getVersion(final Path exec) |
| { |
| try |
| { |
| final ProcessBuilder processBuilder = new ProcessBuilder(exec.toString(), |
| "--version"); |
| final Process versionProcess = processBuilder.start(); |
| try (final Stream<String> lines = new BufferedReader( |
| new InputStreamReader(versionProcess.getInputStream())).lines()) |
| { |
| final Optional<String> versionLine = lines.filter( |
| l -> l.contains("GraalVM")).findFirst(); |
| if (versionLine.isPresent()) |
| { |
| return versionLine.get(); |
| } |
| } |
| } |
| catch (final IOException e) |
| { |
| e.printStackTrace(); |
| } |
| return null; |
| } |
| } |