| /* |
| * Copyright 2016 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 com.google.idea.blaze.base.async.process; |
| |
| import com.google.idea.blaze.base.model.primitives.WorkspaceRoot; |
| import com.intellij.openapi.diagnostic.Logger; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.util.List; |
| |
| public class ProcessUtil { |
| private static final Logger LOG = Logger.getInstance(ProcessUtil.class); |
| |
| public static Thread forwardAsync(final InputStream input, final OutputStream output) { |
| Thread thread = new Thread(new Runnable() { |
| @Override |
| public void run() { |
| int bufferSize = 4096; |
| byte[] buffer = new byte[bufferSize]; |
| |
| int read = 0; |
| try { |
| read = input.read(buffer); |
| while (read != -1) { |
| output.write(buffer, 0, read); |
| read = input.read(buffer); |
| } |
| } |
| catch (IOException e) { |
| LOG.warn("Error redirecting output", e); |
| } |
| } |
| }); |
| thread.start(); |
| return thread; |
| } |
| |
| @NotNull |
| public static String runCommand( |
| @NotNull WorkspaceRoot workspaceRoot, |
| @NotNull List<String> command |
| ) { |
| ByteArrayOutputStream output = new ByteArrayOutputStream(); |
| ExternalTask.Builder builder = ExternalTask.builder(workspaceRoot, command); |
| ExternalTask task = builder |
| .redirectStderr(true) |
| .stdout(output) |
| .build(); |
| task.run(); |
| return output.toString(); |
| } |
| } |