/** Run new Maven os process with given arguments and commands. */
public void execute() {
Process process = null;
BufferedReader br = null;
try {
ProcessBuilder processBuilder = getProcessBuilder();
processBuilder.redirectErrorStream(true);
log.info("Starting process: " + processBuilder.command());
process = processBuilder.start();
// Read output
br = new BufferedReader(new InputStreamReader(process.getInputStream()));
String line;
while ((line = br.readLine()) != null) {
System.out.println(line);
}
process.waitFor();
} catch (Exception e) {
throw new RuntimeException(e);
} finally {
close(br);
destroyProcess(process);
}
}
private static void logCommand(final Context context, final ProcessBuilder builder) {
final StringBuilder description = new StringBuilder("Running: ");
for (final String arg : builder.command()) {
description.append(arg).append(" ");
}
context.log(description.toString());
}
private void spawnWorkerAndWait(Script myWhatToDo) {
String currentClassPathString = System.getProperty("java.class.path");
Set<File> classPaths = calculateClassPath(new File(System.getProperty("user.dir")));
List<String> commandLine = new ArrayList<String>();
commandLine.add(JavaEnvUtils.getJreExecutable("java"));
commandLine.addAll(Arrays.asList(JVM_ARGS));
StringBuilder sb = new StringBuilder();
String pathSeparator = System.getProperty("path.separator");
for (File cp : classPaths) {
sb.append(pathSeparator);
sb.append(cp.getAbsolutePath());
}
// copy ant libs
for (String entry : currentClassPathString.split(pathSeparator)) {
if (entry.indexOf("ant") >= 0) {
sb.append(pathSeparator);
sb.append(entry);
}
}
commandLine.add("-classpath");
commandLine.add(sb.toString());
commandLine.add(MakeWorker.class.getCanonicalName());
try {
commandLine.add(myWhatToDo.dumpToTmpFile().getAbsolutePath());
} catch (FileNotFoundException e) {
throw new BuildException(e);
}
ProcessBuilder pb = new ProcessBuilder(JavaEnvUtils.getJreExecutable("java"));
pb.command(commandLine);
pb.directory(new File(System.getProperty("user.dir")));
executeProcess(pb);
}
