/*******************************************************************************
* Copyright (c) 2006, 2016 Intel Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Intel Corporation - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.managedbuilder.internal.buildmodel;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import org.eclipse.cdt.core.CommandLauncher;
import org.eclipse.cdt.core.ICommandLauncher;
import org.eclipse.cdt.managedbuilder.buildmodel.IBuildCommand;
import org.eclipse.cdt.managedbuilder.core.ManagedBuilderCorePlugin;
import org.eclipse.cdt.managedbuilder.internal.core.ManagedMakeMessages;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.SubProgressMonitor;
/**
*
* This class implements the IBuildCommand building
* To build the given command, create an instance of this class
* and invoke the build method
*
* NOTE: This class is subject to change and discuss,
* and is currently available in experimental mode only
*
*/
public class CommandBuilder implements IBuildModelBuilder {
private static final String NEWLINE = System.getProperty("line.separator", "\n"); //$NON-NLS-1$ //$NON-NLS-2$
private IBuildCommand fCmd;
private Process fProcess;
private String fErrMsg;
protected class OutputStreamWrapper extends OutputStream {
private OutputStream fOut;
public OutputStreamWrapper(OutputStream out){
fOut = out;
}
@Override
public void write(int b) throws IOException {
fOut.write(b);
}
@Override
public void write(byte b[]) throws IOException {
fOut.write(b);
}
@Override
public void write(byte b[], int off, int len) throws IOException {
fOut.write(b, off, len);
}
@Override
public void flush() throws IOException {
fOut.flush();
}
@Override
public void close() throws IOException {
}
}
public CommandBuilder(IBuildCommand cmd, IResourceRebuildStateContainer cr){
fCmd = cmd;
}
protected OutputStream wrap(OutputStream out){
return new OutputStreamWrapper(out);
}
@Override
public int build(OutputStream out, OutputStream err, IProgressMonitor monitor) {
int status = STATUS_ERROR_LAUNCH;
try {
if (monitor == null) {
monitor = new NullProgressMonitor();
}
monitor.beginTask("", getNumCommands()); //$NON-NLS-1$
monitor.subTask(ManagedMakeMessages.getResourceString("MakeBuilder.Invoking_Command") + getCommandLine()); //$NON-NLS-1$
ICommandLauncher launcher = createLauncher();
launcher.showCommand(true);
fProcess = launcher.execute(fCmd.getCommand(), fCmd.getArgs(), mapToStringArray(fCmd.getEnvironment()), fCmd.getCWD(), monitor);
if (fProcess != null) {
try {
// Close the input of the process since we will never write to it
fProcess.getOutputStream().close();
} catch (IOException e) {
}
// Wrapping out and err streams to avoid their closure
int st = launcher.waitAndRead(wrap(out), wrap(err), new SubProgressMonitor(monitor, getNumCommands()));
switch (st) {
case ICommandLauncher.OK:
// assuming that compiler returns error code after compilation errors
status = fProcess.exitValue() == 0 ? STATUS_OK : STATUS_ERROR_BUILD;
break;
case ICommandLauncher.COMMAND_CANCELED:
status = STATUS_CANCELLED;
break;
case ICommandLauncher.ILLEGAL_COMMAND:
default:
status = STATUS_ERROR_LAUNCH;
break;
}
}
fErrMsg = launcher.getErrorMessage();
if (fErrMsg != null && !fErrMsg.isEmpty()) {
printMessage(fErrMsg, err);
}
} catch (CoreException e) {
ManagedBuilderCorePlugin.log(new Status(IStatus.ERROR, ManagedBuilderCorePlugin.PLUGIN_ID,
"Error launching command [" + fCmd.getCommand() + "]", e)); //$NON-NLS-1$ //$NON-NLS-2$
status = STATUS_ERROR_LAUNCH;
} finally {
monitor.done();
}
return status;
}
protected ICommandLauncher createLauncher() {
return new CommandLauncher();
}
public String getErrMsg() {
return fErrMsg;
}
private String[] mapToStringArray(Map<String, String> map){
if(map == null)
return null;
List<String> list = new ArrayList<String>();
Set<Entry<String, String>> entrySet = map.entrySet();
for (Entry<String, String> entry : entrySet) {
list.add(entry.getKey() + '=' + entry.getValue());
}
return list.toArray(new String[list.size()]);
}
protected void printMessage(String msg, OutputStream os){
if (os != null) {
try {
os.write((msg + NEWLINE).getBytes());
os.flush();
} catch (IOException e) {
// ignore;
}
}
}
public int getNumCommands() {
return 1;
}
protected String getCommandLine() {
StringBuilder buf = new StringBuilder();
if (fCmd != null) {
buf.append(fCmd.getCommand().toOSString());
String args[] = fCmd.getArgs();
for (int i = 0; i < args.length; i++) {
buf.append(' ');
buf.append(args[i]);
}
buf.append(NEWLINE);
}
return buf.toString();
}
}