Bug 461438 - Start of unpack native touchpoint action.

This can be used for downloading and extracting toolchains into the
Eclipse install folder. It will be used for the Arduino CDT.

Change-Id: Iada25cff0fb2b2d9e5a55bedcaa8dbf9074058d8

p2/org.eclipse.cdt.p2/.classpath

@@ -4,7 +4,6 @@
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins">
 		<accessrules>
 			<accessrule kind="accessible" pattern="**/internal/provisional/**"/>
-			<accessrule kind="accessible" pattern="**/internal/p2/**"/>
 		</accessrules>
 	</classpathentry>
 	<classpathentry kind="src" path="src"/>

p2/org.eclipse.cdt.p2/META-INF/MANIFEST.MF

@@ -13,7 +13,8 @@ Require-Bundle: org.eclipse.core.runtime,
  org.eclipse.equinox.p2.engine;bundle-version="1.0.1",
  org.apache.ant;bundle-version="1.7.0",
  org.eclipse.equinox.p2.touchpoint.natives;bundle-version="1.0.0",
- org.eclipse.equinox.p2.repository;bundle-version="1.0.0"
+ org.eclipse.equinox.p2.repository;bundle-version="1.0.0",
+ org.apache.commons.compress;bundle-version="1.6.0"
 Bundle-RequiredExecutionEnvironment: JavaSE-1.7
 Bundle-ActivationPolicy: lazy
 Export-Package: org.eclipse.cdt.internal.p2,

p2/org.eclipse.cdt.p2/src/org/eclipse/cdt/internal/p2/Activator.java

@@ -10,8 +10,8 @@
  *******************************************************************************/
 package org.eclipse.cdt.internal.p2;
 
+import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Platform;
 import org.eclipse.core.runtime.Plugin;
 import org.eclipse.core.runtime.Status;
 import org.osgi.framework.BundleContext;
@@ -23,7 +23,7 @@ import org.osgi.framework.ServiceReference;
 public class Activator extends Plugin {
 
 	// The plug-in ID
-	public static final String PLUGIN_ID = "org.eclipse.cdt.p2";
+	public static final String PLUGIN_ID = "org.eclipse.cdt.p2"; //$NON-NLS-1$
 
 	// The shared instance
 	private static Activator plugin;
@@ -71,24 +71,30 @@ public class Activator extends Plugin {
 	 * @param name name of the service
 	 * @return the service
 	 */
-	@SuppressWarnings("unchecked")
 	public static <T> T getService(Class<T> clazz) {
 		BundleContext context = plugin.getBundle().getBundleContext();
-		ServiceReference ref = context.getServiceReference(clazz.getName());
+		ServiceReference<T> ref = context.getServiceReference(clazz);
-		return (ref != null) ? (T)context.getService(ref) : null;
+		return (ref != null) ? context.getService(ref) : null;
 	}
 
-	/**
+	public static IStatus getStatus(int severity, String message) {
-	 * Spit out the log.
+		return new Status(severity, PLUGIN_ID, message);
-	 * 
+	}
-	 * @param status
+
-	 */
+	public static IStatus getStatus(int severity, Throwable e) {
-	public static void log(int severity, String message, Throwable exception) {
+		return new Status(severity, PLUGIN_ID, e.getLocalizedMessage(), e);
-		Platform.getLog(plugin.getBundle()).log(new Status(severity, PLUGIN_ID, message, exception));
 	}
 
 	public static void log(IStatus status) {
-		Platform.getLog(plugin.getBundle()).log(status);
+		plugin.getLog().log(status);
+	}
+
+	public static void log(CoreException e) {
+		plugin.getLog().log(e.getStatus());
+	}
+	
+	public static void log(Throwable e) {
+		plugin.getLog().log(getStatus(IStatus.ERROR, e));
 	}
 
 }

p2/org.eclipse.cdt.p2/src/org/eclipse/cdt/internal/p2/touchpoint/natives/actions/CleanupUnpackAction.java

@@ -0,0 +1,5 @@
+package org.eclipse.cdt.internal.p2.touchpoint.natives.actions;
+
+public class CleanupUnpackAction {
+
+}

p2/org.eclipse.cdt.p2/src/org/eclipse/cdt/internal/p2/touchpoint/natives/actions/Messages.java

@@ -0,0 +1,16 @@
+package org.eclipse.cdt.internal.p2.touchpoint.natives.actions;
+
+import org.eclipse.osgi.util.NLS;
+
+public class Messages extends NLS {
+	private static final String BUNDLE_NAME = "org.eclipse.cdt.internal.p2.touchpoint.natives.actions.messages"; //$NON-NLS-1$
+	public static String UnpackAction_ParmNotPresent;
+	public static String UnpackAction_TargetDirExists;
+	static {
+		// initialize resource bundle
+		NLS.initializeMessages(BUNDLE_NAME, Messages.class);
+	}
+
+	private Messages() {
+	}
+}

p2/org.eclipse.cdt.p2/src/org/eclipse/cdt/internal/p2/touchpoint/natives/actions/UnpackAction.java

@@ -0,0 +1,135 @@
+/*******************************************************************************
+ * Copyright (c) 2015 QNX Software Systems 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:
+ *     QNX Software Systems - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.internal.p2.touchpoint.natives.actions;
+
+import java.io.BufferedInputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Map;
+
+import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
+import org.apache.commons.compress.archivers.tar.TarArchiveInputStream;
+import org.apache.commons.compress.compressors.bzip2.BZip2CompressorInputStream;
+import org.apache.commons.compress.compressors.gzip.GzipCompressorInputStream;
+import org.apache.commons.compress.compressors.xz.XZCompressorInputStream;
+import org.eclipse.cdt.internal.p2.Activator;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.equinox.p2.engine.IProfile;
+import org.eclipse.equinox.p2.engine.spi.ProvisioningAction;
+
+/**
+ * Unpack the artifact with a choice of compression
+ * 
+ * syntax: unpack(source:<url>, targetDir:${installFolder}/<subdir>, compression:[gz|bz2])
+ */
+public class UnpackAction extends ProvisioningAction {
+
+	private static final String ACTION_NAME = "unpack"; //$NON-NLS-1$
+	private static final String PARM_SOURCE = "source"; //$NON-NLS-1$
+	private static final String PARM_TARGET_DIR = "targetDir"; //$NON-NLS-1$
+	private static final String PARM_FORMAT = "format"; //$NON-NLS-1$
+
+	@Override
+	public IStatus execute(Map<String, Object> parameters) {
+		try {
+			String source = (String)parameters.get(PARM_SOURCE);
+			if (source == null) {
+				return Activator.getStatus(IStatus.ERROR, String.format(Messages.UnpackAction_ParmNotPresent, PARM_SOURCE, ACTION_NAME));
+			}
+
+			String targetDir = (String)parameters.get(PARM_TARGET_DIR);
+			if (targetDir == null) {
+				return Activator.getStatus(IStatus.ERROR, String.format(Messages.UnpackAction_ParmNotPresent, PARM_TARGET_DIR, ACTION_NAME));
+			}
+
+			String format = (String)parameters.get(PARM_FORMAT);
+			if (format == null) {
+				return Activator.getStatus(IStatus.ERROR, String.format(Messages.UnpackAction_ParmNotPresent, PARM_FORMAT, ACTION_NAME));
+			}
+
+			IProfile profile = (IProfile) parameters.get("profile"); //$NON-NLS-1$
+			File installFolder = new File(profile.getProperty(IProfile.PROP_INSTALL_FOLDER));
+			File destDir = new File(installFolder, targetDir);
+			if (destDir.exists()) {
+				return Activator.getStatus(IStatus.ERROR, String.format(org.eclipse.cdt.internal.p2.touchpoint.natives.actions.Messages.UnpackAction_TargetDirExists, destDir.getAbsolutePath()));
+			}
+
+			URL url = new URL(source);
+			InputStream fileIn = new BufferedInputStream(url.openStream());
+
+			switch (format) {
+			case "tar.gz": //$NON-NLS-1$
+				InputStream gzIn = new GzipCompressorInputStream(fileIn);
+				untar(gzIn, destDir);
+				break;
+			case "tar.bz2": //$NON-NLS-1$
+				InputStream bzIn = new BZip2CompressorInputStream(fileIn);
+				untar(bzIn, destDir);
+				break;
+			case "tar.xz": //$NON-NLS-1$
+				InputStream xzIn = new XZCompressorInputStream(fileIn);
+				untar(xzIn, destDir);
+				break;
+			case "zip": //$NON-NLS-1$
+
+			}
+
+			return Status.OK_STATUS;
+		} catch (Throwable e) {
+			return new Status(IStatus.ERROR, Activator.PLUGIN_ID, e.getLocalizedMessage(), e);
+		}
+	}
+
+	private void untar(InputStream in, File destDir) throws IOException {
+		byte[] buff = new byte[4096];
+		try (TarArchiveInputStream tarIn = new TarArchiveInputStream(in)) {
+			for (TarArchiveEntry entry = tarIn.getNextTarEntry(); entry != null; entry = tarIn.getNextTarEntry()) {
+				String name = entry.getName();
+				File destFile = new File(destDir, name);
+				if (entry.isSymbolicLink()) {
+					Files.createSymbolicLink(destFile.toPath(), Paths.get(name));
+				} else {
+					try (FileOutputStream out = new FileOutputStream(destFile)) {
+						long size = entry.getSize();
+						while (size > 0) {
+							int n = tarIn.read(buff, 0, (int)Math.min(size, buff.length));
+							out.write(buff, 0, n);
+							size -= n;
+						}
+					}
+					chmod(destFile, entry.getMode());
+				}
+			}
+		}
+	}
+
+	private void chmod(File file, int mode) {
+		file.setExecutable((mode & 0111) != 0, (mode & 0110) == 0);
+		file.setWritable((mode & 0222) != 0, (mode & 0220) == 0);
+		file.setReadable((mode & 0444) != 0, (mode & 0440) == 0);
+	}
+
+	@Override
+	public IStatus undo(Map<String, Object> parameters) {
+		try {
+			return CleanupUntarAction.cleanup(parameters);
+		} catch (Exception e) {
+			return new Status(IStatus.ERROR, Activator.PLUGIN_ID, e.getLocalizedMessage(), e);
+		}
+	}
+
+}

p2/org.eclipse.cdt.p2/src/org/eclipse/cdt/internal/p2/touchpoint/natives/actions/messages.properties

@@ -0,0 +1,2 @@
+UnpackAction_ParmNotPresent=The "{0}" parameter was not set in the "{1}" action.
+UnpackAction_TargetDirExists=The target directory exists: {0}