| /* |
| * Copyright 2018 The Bazel Authors. All rights reserved. |
| * |
| * 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 io.bazel.ruleskotlin.workers.compilers.jvm.utils; |
| |
| import java.io.*; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| public final class Utils { |
| public static List<String> waitForOutput(String[] command, PrintStream err) { |
| try { |
| ProcessBuilder builder = new ProcessBuilder(command); |
| Process process = builder.start(); |
| try (BufferedReader processError = new BufferedReader(new InputStreamReader(process.getErrorStream())); |
| BufferedReader output = new BufferedReader(new InputStreamReader(process.getInputStream()))) { |
| while (true) { |
| String line = processError.readLine(); |
| if (line == null) |
| break; |
| err.println(line); |
| } |
| if (process.waitFor() != 0) { |
| throw new RuntimeException("non-zero return: " + process.exitValue()); |
| } |
| return output.lines().collect(Collectors.toList()); |
| } |
| } catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| public static void waitForSuccess(String[] command, PrintStream err) { |
| try { |
| ProcessBuilder builder = new ProcessBuilder(command); |
| Process process = builder.start(); |
| try (BufferedReader in = new BufferedReader(new InputStreamReader(process.getErrorStream()))) { |
| while (true) { |
| String line = in.readLine(); |
| if (line == null) |
| break; |
| err.println(line); |
| } |
| if (process.waitFor() != 0) { |
| throw new RuntimeException("non-zero return: " + process.exitValue()); |
| } |
| } |
| } catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| |
| public static void deleteDirectory(Path directory) throws IOException { |
| Files.walk(directory) |
| .map(Path::toFile) |
| .sorted((o1, o2) -> -o1.compareTo(o2)) |
| .forEach(File::delete); |
| |
| } |
| |
| public static Throwable getRootCause(Throwable e) { |
| Throwable cause; |
| Throwable result = e; |
| |
| while (null != (cause = result.getCause()) && (result != cause)) { |
| result = cause; |
| } |
| return result; |
| } |
| } |