| /* |
| * 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 |
| * |
| * https://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.tools.ant.taskdefs.launcher; |
| |
| import java.io.BufferedWriter; |
| import java.io.File; |
| import java.io.FileWriter; |
| import java.io.IOException; |
| |
| import org.apache.tools.ant.Project; |
| import org.apache.tools.ant.util.FileUtils; |
| |
| /** |
| * A command launcher for VMS that writes the command to a temporary |
| * DCL script before launching commands. This is due to limitations of |
| * both the DCL interpreter and the Java VM implementation. |
| */ |
| public class VmsCommandLauncher extends Java13CommandLauncher { |
| |
| /** |
| * Launches the given command in a new process. |
| * |
| * @param project |
| * the Ant project. |
| * @param cmd |
| * the command line to execute as an array of strings. |
| * @param env |
| * the environment to set as an array of strings. |
| * @return the created Process. |
| * @throws IOException |
| * forwarded from the exec method of the command launcher. |
| */ |
| @Override |
| public Process exec(Project project, String[] cmd, String[] env) |
| throws IOException { |
| File cmdFile = createCommandFile(project, cmd, env); |
| Process p = |
| super.exec(project, new String[] {cmdFile.getPath()}, env); |
| deleteAfter(cmdFile, p); |
| return p; |
| } |
| |
| /** |
| * Launches the given command in a new process, in the given |
| * working directory. Note that under Java 1.4.0 and 1.4.1 on VMS |
| * this method only works if <code>workingDir</code> is null or |
| * the logical JAVA$FORK_SUPPORT_CHDIR needs to be set to TRUE. |
| * |
| * @param project |
| * the Ant project. |
| * @param cmd |
| * the command line to execute as an array of strings. |
| * @param env |
| * the environment to set as an array of strings. |
| * @param workingDir |
| * working directory where the command should run. |
| * @return the created Process. |
| * @throws IOException |
| * forwarded from the exec method of the command launcher. |
| */ |
| @Override |
| public Process exec(Project project, String[] cmd, String[] env, |
| File workingDir) throws IOException { |
| File cmdFile = createCommandFile(project, cmd, env); |
| Process p = super.exec(project, new String[] {cmdFile.getPath()}, env, |
| workingDir); |
| deleteAfter(cmdFile, p); |
| return p; |
| } |
| |
| /* |
| * Writes the command into a temporary DCL script and returns the |
| * corresponding File object. The script will be deleted on exit. |
| * @param cmd the command line to execute as an array of strings. |
| * @param env the environment to set as an array of strings. |
| * @return the command File. |
| * @throws IOException if errors are encountered creating the file. |
| */ |
| private File createCommandFile(final Project project, String[] cmd, String[] env) |
| throws IOException { |
| File script = FILE_UTILS.createTempFile(project, "ANT", ".COM", null, true, true); |
| try (BufferedWriter out = new BufferedWriter(new FileWriter(script))) { |
| |
| // add the environment as logicals to the DCL script |
| if (env != null) { |
| int eqIndex; |
| for (String variable : env) { |
| eqIndex = variable.indexOf('='); |
| if (eqIndex != -1) { |
| out.write("$ DEFINE/NOLOG "); |
| out.write(variable.substring(0, eqIndex)); |
| out.write(" \""); |
| out.write(variable.substring(eqIndex + 1)); |
| out.write('\"'); |
| out.newLine(); |
| } |
| } |
| } |
| out.write("$ " + cmd[0]); |
| for (int i = 1; i < cmd.length; i++) { |
| out.write(" -"); |
| out.newLine(); |
| out.write(cmd[i]); |
| } |
| } |
| return script; |
| } |
| |
| private void deleteAfter(final File f, final Process p) { |
| new Thread(() -> { |
| try { |
| p.waitFor(); |
| } catch (InterruptedException e) { |
| // ignore |
| } |
| FileUtils.delete(f); |
| }).start(); |
| } |
| } |