toolchains/arduino/org.eclipse.cdt.arduino.core/src/org/eclipse/cdt/arduino/core/internal/board/ArduinoManager.java - cdt/org.eclipse.cdt - Git at Google

 /*******************************************************************************
  * 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.arduino.core.internal.board;

 import java.io.BufferedInputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileReader;
 import java.io.IOException;
 import java.io.InputStream;
 import java.lang.reflect.Type;
 import java.net.URL;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.StandardCopyOption;
 import java.nio.file.attribute.PosixFilePermission;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;

 import org.apache.commons.compress.archivers.ArchiveEntry;
 import org.apache.commons.compress.archivers.ArchiveException;
 import org.apache.commons.compress.archivers.ArchiveInputStream;
 import org.apache.commons.compress.archivers.ArchiveStreamFactory;
 import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
 import org.apache.commons.compress.compressors.CompressorException;
 import org.apache.commons.compress.compressors.CompressorStreamFactory;
 import org.eclipse.cdt.arduino.core.internal.Activator;
 import org.eclipse.cdt.arduino.core.internal.ArduinoPreferences;
 import org.eclipse.cdt.arduino.core.internal.Messages;
 import org.eclipse.cdt.arduino.core.internal.build.ArduinoBuildConfiguration;
 import org.eclipse.core.resources.IBuildConfiguration;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.ProjectScope;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.MultiStatus;
 import org.eclipse.core.runtime.Platform;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.core.runtime.jobs.Job;
 import org.eclipse.core.runtime.preferences.IEclipsePreferences;
 import org.osgi.service.prefs.BackingStoreException;

 import com.google.gson.Gson;
 import com.google.gson.reflect.TypeToken;

 public class ArduinoManager {

 	public static final ArduinoManager instance = new ArduinoManager();

 	// Build tool ids
 	public static final String BOARD_OPTION_ID = "org.eclipse.cdt.arduino.option.board"; //$NON-NLS-1$
 	public static final String PLATFORM_OPTION_ID = "org.eclipse.cdt.arduino.option.platform"; //$NON-NLS-1$
 	public static final String PACKAGE_OPTION_ID = "org.eclipse.cdt.arduino.option.package"; //$NON-NLS-1$
 	public static final String AVR_TOOLCHAIN_ID = "org.eclipse.cdt.arduino.toolChain.avr"; //$NON-NLS-1$

 	private Path packageIndexPath = ArduinoPreferences.getArduinoHome().resolve("package_index.json"); //$NON-NLS-1$
 	private PackageIndex packageIndex;

 	private Path libraryIndexPath = ArduinoPreferences.getArduinoHome().resolve("library_index.json"); //$NON-NLS-1$
 	private LibraryIndex libraryIndex;

 	public ArduinoManager() {
 		new Job(Messages.ArduinoBoardManager_0) {
 			protected IStatus run(IProgressMonitor monitor) {
 				try {
 					// library index has the same parent right now
 					Files.createDirectories(packageIndexPath.getParent());

 					URL packageUrl = new URL("http://downloads.arduino.cc/packages/package_index.json"); //$NON-NLS-1$
 					try (InputStream in = packageUrl.openStream()) {
 						Files.copy(in, packageIndexPath, StandardCopyOption.REPLACE_EXISTING);
 					}

 					URL libraryUrl = new URL("http://downloads.arduino.cc/libraries/library_index.json"); //$NON-NLS-1$
 					try (InputStream in = libraryUrl.openStream()) {
 						Files.copy(in, libraryIndexPath, StandardCopyOption.REPLACE_EXISTING);
 					}
 				} catch (IOException e) {
 					return new Status(IStatus.ERROR, Activator.getId(), e.getLocalizedMessage(), e);
 				}
 				return Status.OK_STATUS;
 			}
 		}.schedule();
 	}

 	public PackageIndex getPackageIndex() throws CoreException {
 		if (packageIndex == null) {
 			try (FileReader reader = new FileReader(packageIndexPath.toFile())) {
 				packageIndex = new Gson().fromJson(reader, PackageIndex.class);
 				packageIndex.setOwners(this);
 			} catch (IOException e) {
 				throw new CoreException(new Status(IStatus.ERROR, Activator.getId(), "Reading package index", e));
 			}
 		}
 		return packageIndex;
 	}

 	public LibraryIndex getLibraryIndex() throws CoreException {
 		if (libraryIndex == null) {
 			try (FileReader reader = new FileReader(libraryIndexPath.toFile())) {
 				libraryIndex = new Gson().fromJson(reader, LibraryIndex.class);
 				libraryIndex.resolve();
 			} catch (IOException e) {
 				throw new CoreException(new Status(IStatus.ERROR, Activator.getId(), "Reading library index", e));
 			}
 		}
 		return libraryIndex;
 	}

 	public ArduinoBoard getBoard(String boardName, String platformName, String packageName) throws CoreException {
 		return getPackageIndex().getPackage(packageName).getPlatform(platformName).getBoard(boardName);
 	}

 	public List<ArduinoBoard> getBoards() throws CoreException {
 		List<ArduinoBoard> boards = new ArrayList<>();
 		for (ArduinoPackage pkg : getPackageIndex().getPackages()) {
 			for (ArduinoPlatform platform : pkg.getLatestPlatforms()) {
 				boards.addAll(platform.getBoards());
 			}
 		}
 		return boards;
 	}

 	public List<ArduinoBoard> getInstalledBoards() throws CoreException {
 		List<ArduinoBoard> boards = new ArrayList<>();
 		for (ArduinoPackage pkg : getPackageIndex().getPackages()) {
 			for (ArduinoPlatform platform : pkg.getInstalledPlatforms()) {
 				boards.addAll(platform.getBoards());
 			}
 		}
 		return boards;
 	}

 	public ArduinoTool getTool(String packageName, String toolName, String version) {
 		ArduinoPackage pkg = packageIndex.getPackage(packageName);
 		return pkg != null ? pkg.getTool(toolName, version) : null;
 	}

 	private static final String LIBRARIES = "libraries"; //$NON-NLS-1$

 	private IEclipsePreferences getSettings(IProject project) {
 		return (IEclipsePreferences) new ProjectScope(project).getNode(Activator.getId());
 	}

 	public Collection<ArduinoLibrary> getLibraries(IProject project) throws CoreException {
 		IEclipsePreferences settings = getSettings(project);
 		String librarySetting = settings.get(LIBRARIES, "[]"); //$NON-NLS-1$
 		Type stringSet = new TypeToken<Set<String>>() {
 		}.getType();
 		Set<String> libraryNames = new Gson().fromJson(librarySetting, stringSet);
 		LibraryIndex index = ArduinoManager.instance.getLibraryIndex();
 		List<ArduinoLibrary> libraries = new ArrayList<>(libraryNames.size());
 		for (String name : libraryNames) {
 			libraries.add(index.getLibrary(name));
 		}
 		return libraries;
 	}

 	public void setLibraries(final IProject project, final Collection<ArduinoLibrary> libraries) throws CoreException {
 		List<String> libraryNames = new ArrayList<>(libraries.size());
 		for (ArduinoLibrary library : libraries) {
 			libraryNames.add(library.getName());
 		}
 		IEclipsePreferences settings = getSettings(project);
 		settings.put(LIBRARIES, new Gson().toJson(libraryNames));
 		try {
 			settings.flush();
 		} catch (BackingStoreException e) {
 			throw new CoreException(new Status(IStatus.ERROR, Activator.getId(), "Saving preferences", e));
 		}

 		new Job("Install libraries") {
 			protected IStatus run(IProgressMonitor monitor) {
 				MultiStatus mstatus = new MultiStatus(Activator.getId(), 0, "Installing libraries", null);
 				for (ArduinoLibrary library : libraries) {
 					IStatus status = library.install(monitor);
 					if (!status.isOK()) {
 						mstatus.add(status);
 					}
 				}

 				// Clear the scanner info caches to pick up new includes
 				try {
 					for (IBuildConfiguration config : project.getBuildConfigs()) {
 						ArduinoBuildConfiguration arduinoConfig = config.getAdapter(ArduinoBuildConfiguration.class);
 						arduinoConfig.clearScannerInfoCache();
 					}
 				} catch (CoreException e) {
 					mstatus.add(e.getStatus());
 				}
 				return mstatus;
 			}
 		}.schedule();
 	}

 	public static IStatus downloadAndInstall(String url, String archiveFileName, Path installPath,
 			IProgressMonitor monitor) {
 		try {
 			URL dl = new URL(url);
 			Path dlDir = ArduinoPreferences.getArduinoHome().resolve("downloads");
 			Files.createDirectories(dlDir);
 			Path archivePath = dlDir.resolve(archiveFileName);
 			Files.copy(dl.openStream(), archivePath, StandardCopyOption.REPLACE_EXISTING);

 			boolean isWin = Platform.getOS().equals(Platform.OS_WIN32);

 			// extract
 			ArchiveInputStream archiveIn = null;
 			try {
 				String compressor = null;
 				String archiver = null;
 				if (archiveFileName.endsWith("tar.bz2")) { //$NON-NLS-1$
 					compressor = CompressorStreamFactory.BZIP2;
 					archiver = ArchiveStreamFactory.TAR;
 				} else if (archiveFileName.endsWith(".tar.gz") || archiveFileName.endsWith(".tgz")) { //$NON-NLS-1$ //$NON-NLS-2$
 					compressor = CompressorStreamFactory.GZIP;
 					archiver = ArchiveStreamFactory.TAR;
 				} else if (archiveFileName.endsWith(".tar.xz")) { //$NON-NLS-1$
 					compressor = CompressorStreamFactory.XZ;
 					archiver = ArchiveStreamFactory.TAR;
 				} else if (archiveFileName.endsWith(".zip")) { //$NON-NLS-1$
 					archiver = ArchiveStreamFactory.ZIP;
 				}

 				InputStream in = new BufferedInputStream(new FileInputStream(archivePath.toFile()));
 				if (compressor != null) {
 					in = new CompressorStreamFactory().createCompressorInputStream(compressor, in);
 				}
 				archiveIn = new ArchiveStreamFactory().createArchiveInputStream(archiver, in);

 				for (ArchiveEntry entry = archiveIn.getNextEntry(); entry != null; entry = archiveIn.getNextEntry()) {
 					if (entry.isDirectory()) {
 						continue;
 					}

 					Path entryPath = installPath.resolve(entry.getName());
 					Files.createDirectories(entryPath.getParent());

 					if (entry instanceof TarArchiveEntry) {
 						TarArchiveEntry tarEntry = (TarArchiveEntry) entry;
 						if (tarEntry.isLink()) {
 							Path linkPath = installPath.resolve(tarEntry.getLinkName());
 							Files.createSymbolicLink(entryPath, entryPath.getParent().relativize(linkPath));
 						} else {
 							Files.copy(archiveIn, entryPath, StandardCopyOption.REPLACE_EXISTING);
 						}
 						if (!isWin) {
 							int mode = tarEntry.getMode();
 							Files.setPosixFilePermissions(entryPath, toPerms(mode));
 						}
 					} else {
 						Files.copy(archiveIn, entryPath, StandardCopyOption.REPLACE_EXISTING);
 					}
 				}
 			} finally {
 				if (archiveIn != null) {
 					archiveIn.close();
 				}
 			}

 			// Fix up directory
 			File[] children = installPath.toFile().listFiles();
 			if (children.length == 1 && children[0].isDirectory()) {
 				// make that directory the install path
 				Path childPath = children[0].toPath();
 				Path tmpPath = installPath.getParent().resolve("_t"); //$NON-NLS-1$
 				Files.move(childPath, tmpPath);
 				Files.delete(installPath);
 				Files.move(tmpPath, installPath);
 			}
 			return Status.OK_STATUS;
 		} catch (IOException | CompressorException | ArchiveException e) {
 			return new Status(IStatus.ERROR, Activator.getId(), "Installing Platform", e);
 		}
 	}

 	private static Set<PosixFilePermission> toPerms(int mode) {
 		Set<PosixFilePermission> perms = new HashSet<>();
 		if ((mode & 0400) != 0) {
 			perms.add(PosixFilePermission.OWNER_READ);
 		}
 		if ((mode & 0200) != 0) {
 			perms.add(PosixFilePermission.OWNER_WRITE);
 		}
 		if ((mode & 0100) != 0) {
 			perms.add(PosixFilePermission.OWNER_EXECUTE);
 		}
 		if ((mode & 0040) != 0) {
 			perms.add(PosixFilePermission.GROUP_READ);
 		}
 		if ((mode & 0020) != 0) {
 			perms.add(PosixFilePermission.GROUP_WRITE);
 		}
 		if ((mode & 0010) != 0) {
 			perms.add(PosixFilePermission.GROUP_EXECUTE);
 		}
 		if ((mode & 0004) != 0) {
 			perms.add(PosixFilePermission.OTHERS_READ);
 		}
 		if ((mode & 0002) != 0) {
 			perms.add(PosixFilePermission.OTHERS_WRITE);
 		}
 		if ((mode & 0001) != 0) {
 			perms.add(PosixFilePermission.OTHERS_EXECUTE);
 		}
 		return perms;
 	}

 }
	/*******************************************************************************
	* 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.arduino.core.internal.board;

	import java.io.BufferedInputStream;
	import java.io.File;
	import java.io.FileInputStream;
	import java.io.FileReader;
	import java.io.IOException;
	import java.io.InputStream;
	import java.lang.reflect.Type;
	import java.net.URL;
	import java.nio.file.Files;
	import java.nio.file.Path;
	import java.nio.file.StandardCopyOption;
	import java.nio.file.attribute.PosixFilePermission;
	import java.util.ArrayList;
	import java.util.Collection;
	import java.util.HashSet;
	import java.util.List;
	import java.util.Set;

	import org.apache.commons.compress.archivers.ArchiveEntry;
	import org.apache.commons.compress.archivers.ArchiveException;
	import org.apache.commons.compress.archivers.ArchiveInputStream;
	import org.apache.commons.compress.archivers.ArchiveStreamFactory;
	import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
	import org.apache.commons.compress.compressors.CompressorException;
	import org.apache.commons.compress.compressors.CompressorStreamFactory;
	import org.eclipse.cdt.arduino.core.internal.Activator;
	import org.eclipse.cdt.arduino.core.internal.ArduinoPreferences;
	import org.eclipse.cdt.arduino.core.internal.Messages;
	import org.eclipse.cdt.arduino.core.internal.build.ArduinoBuildConfiguration;
	import org.eclipse.core.resources.IBuildConfiguration;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.resources.ProjectScope;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.MultiStatus;
	import org.eclipse.core.runtime.Platform;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.core.runtime.jobs.Job;
	import org.eclipse.core.runtime.preferences.IEclipsePreferences;
	import org.osgi.service.prefs.BackingStoreException;

	import com.google.gson.Gson;
	import com.google.gson.reflect.TypeToken;

	public class ArduinoManager {

	public static final ArduinoManager instance = new ArduinoManager();

	// Build tool ids
	public static final String BOARD_OPTION_ID = "org.eclipse.cdt.arduino.option.board"; //$NON-NLS-1$
	public static final String PLATFORM_OPTION_ID = "org.eclipse.cdt.arduino.option.platform"; //$NON-NLS-1$
	public static final String PACKAGE_OPTION_ID = "org.eclipse.cdt.arduino.option.package"; //$NON-NLS-1$
	public static final String AVR_TOOLCHAIN_ID = "org.eclipse.cdt.arduino.toolChain.avr"; //$NON-NLS-1$

	private Path packageIndexPath = ArduinoPreferences.getArduinoHome().resolve("package_index.json"); //$NON-NLS-1$
	private PackageIndex packageIndex;

	private Path libraryIndexPath = ArduinoPreferences.getArduinoHome().resolve("library_index.json"); //$NON-NLS-1$
	private LibraryIndex libraryIndex;

	public ArduinoManager() {
	new Job(Messages.ArduinoBoardManager_0) {
	protected IStatus run(IProgressMonitor monitor) {
	try {
	// library index has the same parent right now
	Files.createDirectories(packageIndexPath.getParent());

	URL packageUrl = new URL("http://downloads.arduino.cc/packages/package_index.json"); //$NON-NLS-1$
	try (InputStream in = packageUrl.openStream()) {
	Files.copy(in, packageIndexPath, StandardCopyOption.REPLACE_EXISTING);
	}

	URL libraryUrl = new URL("http://downloads.arduino.cc/libraries/library_index.json"); //$NON-NLS-1$
	try (InputStream in = libraryUrl.openStream()) {
	Files.copy(in, libraryIndexPath, StandardCopyOption.REPLACE_EXISTING);
	}
	} catch (IOException e) {
	return new Status(IStatus.ERROR, Activator.getId(), e.getLocalizedMessage(), e);
	}
	return Status.OK_STATUS;
	}
	}.schedule();
	}

	public PackageIndex getPackageIndex() throws CoreException {
	if (packageIndex == null) {
	try (FileReader reader = new FileReader(packageIndexPath.toFile())) {
	packageIndex = new Gson().fromJson(reader, PackageIndex.class);
	packageIndex.setOwners(this);
	} catch (IOException e) {
	throw new CoreException(new Status(IStatus.ERROR, Activator.getId(), "Reading package index", e));
	}
	}
	return packageIndex;
	}

	public LibraryIndex getLibraryIndex() throws CoreException {
	if (libraryIndex == null) {
	try (FileReader reader = new FileReader(libraryIndexPath.toFile())) {
	libraryIndex = new Gson().fromJson(reader, LibraryIndex.class);
	libraryIndex.resolve();
	} catch (IOException e) {
	throw new CoreException(new Status(IStatus.ERROR, Activator.getId(), "Reading library index", e));
	}
	}
	return libraryIndex;
	}

	public ArduinoBoard getBoard(String boardName, String platformName, String packageName) throws CoreException {
	return getPackageIndex().getPackage(packageName).getPlatform(platformName).getBoard(boardName);
	}

	public List<ArduinoBoard> getBoards() throws CoreException {
	List<ArduinoBoard> boards = new ArrayList<>();
	for (ArduinoPackage pkg : getPackageIndex().getPackages()) {
	for (ArduinoPlatform platform : pkg.getLatestPlatforms()) {
	boards.addAll(platform.getBoards());
	}
	}
	return boards;
	}

	public List<ArduinoBoard> getInstalledBoards() throws CoreException {
	List<ArduinoBoard> boards = new ArrayList<>();
	for (ArduinoPackage pkg : getPackageIndex().getPackages()) {
	for (ArduinoPlatform platform : pkg.getInstalledPlatforms()) {
	boards.addAll(platform.getBoards());
	}
	}
	return boards;
	}

	public ArduinoTool getTool(String packageName, String toolName, String version) {
	ArduinoPackage pkg = packageIndex.getPackage(packageName);
	return pkg != null ? pkg.getTool(toolName, version) : null;
	}

	private static final String LIBRARIES = "libraries"; //$NON-NLS-1$

	private IEclipsePreferences getSettings(IProject project) {
	return (IEclipsePreferences) new ProjectScope(project).getNode(Activator.getId());
	}

	public Collection<ArduinoLibrary> getLibraries(IProject project) throws CoreException {
	IEclipsePreferences settings = getSettings(project);
	String librarySetting = settings.get(LIBRARIES, "[]"); //$NON-NLS-1$
	Type stringSet = new TypeToken<Set<String>>() {
	}.getType();
	Set<String> libraryNames = new Gson().fromJson(librarySetting, stringSet);
	LibraryIndex index = ArduinoManager.instance.getLibraryIndex();
	List<ArduinoLibrary> libraries = new ArrayList<>(libraryNames.size());
	for (String name : libraryNames) {
	libraries.add(index.getLibrary(name));
	}
	return libraries;
	}

	public void setLibraries(final IProject project, final Collection<ArduinoLibrary> libraries) throws CoreException {
	List<String> libraryNames = new ArrayList<>(libraries.size());
	for (ArduinoLibrary library : libraries) {
	libraryNames.add(library.getName());
	}
	IEclipsePreferences settings = getSettings(project);
	settings.put(LIBRARIES, new Gson().toJson(libraryNames));
	try {
	settings.flush();
	} catch (BackingStoreException e) {
	throw new CoreException(new Status(IStatus.ERROR, Activator.getId(), "Saving preferences", e));
	}

	new Job("Install libraries") {
	protected IStatus run(IProgressMonitor monitor) {
	MultiStatus mstatus = new MultiStatus(Activator.getId(), 0, "Installing libraries", null);
	for (ArduinoLibrary library : libraries) {
	IStatus status = library.install(monitor);
	if (!status.isOK()) {
	mstatus.add(status);
	}
	}

	// Clear the scanner info caches to pick up new includes
	try {
	for (IBuildConfiguration config : project.getBuildConfigs()) {
	ArduinoBuildConfiguration arduinoConfig = config.getAdapter(ArduinoBuildConfiguration.class);
	arduinoConfig.clearScannerInfoCache();
	}
	} catch (CoreException e) {
	mstatus.add(e.getStatus());
	}
	return mstatus;
	}
	}.schedule();
	}

	public static IStatus downloadAndInstall(String url, String archiveFileName, Path installPath,
	IProgressMonitor monitor) {
	try {
	URL dl = new URL(url);
	Path dlDir = ArduinoPreferences.getArduinoHome().resolve("downloads");
	Files.createDirectories(dlDir);
	Path archivePath = dlDir.resolve(archiveFileName);
	Files.copy(dl.openStream(), archivePath, StandardCopyOption.REPLACE_EXISTING);

	boolean isWin = Platform.getOS().equals(Platform.OS_WIN32);

	// extract
	ArchiveInputStream archiveIn = null;
	try {
	String compressor = null;
	String archiver = null;
	if (archiveFileName.endsWith("tar.bz2")) { //$NON-NLS-1$
	compressor = CompressorStreamFactory.BZIP2;
	archiver = ArchiveStreamFactory.TAR;
	} else if (archiveFileName.endsWith(".tar.gz") \|\| archiveFileName.endsWith(".tgz")) { //$NON-NLS-1$ //$NON-NLS-2$
	compressor = CompressorStreamFactory.GZIP;
	archiver = ArchiveStreamFactory.TAR;
	} else if (archiveFileName.endsWith(".tar.xz")) { //$NON-NLS-1$
	compressor = CompressorStreamFactory.XZ;
	archiver = ArchiveStreamFactory.TAR;
	} else if (archiveFileName.endsWith(".zip")) { //$NON-NLS-1$
	archiver = ArchiveStreamFactory.ZIP;
	}

	InputStream in = new BufferedInputStream(new FileInputStream(archivePath.toFile()));
	if (compressor != null) {
	in = new CompressorStreamFactory().createCompressorInputStream(compressor, in);
	}
	archiveIn = new ArchiveStreamFactory().createArchiveInputStream(archiver, in);

	for (ArchiveEntry entry = archiveIn.getNextEntry(); entry != null; entry = archiveIn.getNextEntry()) {
	if (entry.isDirectory()) {
	continue;
	}

	Path entryPath = installPath.resolve(entry.getName());
	Files.createDirectories(entryPath.getParent());

	if (entry instanceof TarArchiveEntry) {
	TarArchiveEntry tarEntry = (TarArchiveEntry) entry;
	if (tarEntry.isLink()) {
	Path linkPath = installPath.resolve(tarEntry.getLinkName());
	Files.createSymbolicLink(entryPath, entryPath.getParent().relativize(linkPath));
	} else {
	Files.copy(archiveIn, entryPath, StandardCopyOption.REPLACE_EXISTING);
	}
	if (!isWin) {
	int mode = tarEntry.getMode();
	Files.setPosixFilePermissions(entryPath, toPerms(mode));
	}
	} else {
	Files.copy(archiveIn, entryPath, StandardCopyOption.REPLACE_EXISTING);
	}
	}
	} finally {
	if (archiveIn != null) {
	archiveIn.close();
	}
	}

	// Fix up directory
	File[] children = installPath.toFile().listFiles();
	if (children.length == 1 && children[0].isDirectory()) {
	// make that directory the install path
	Path childPath = children[0].toPath();
	Path tmpPath = installPath.getParent().resolve("_t"); //$NON-NLS-1$
	Files.move(childPath, tmpPath);
	Files.delete(installPath);
	Files.move(tmpPath, installPath);
	}
	return Status.OK_STATUS;
	} catch (IOException \| CompressorException \| ArchiveException e) {
	return new Status(IStatus.ERROR, Activator.getId(), "Installing Platform", e);
	}
	}

	private static Set<PosixFilePermission> toPerms(int mode) {
	Set<PosixFilePermission> perms = new HashSet<>();
	if ((mode & 0400) != 0) {
	perms.add(PosixFilePermission.OWNER_READ);
	}
	if ((mode & 0200) != 0) {
	perms.add(PosixFilePermission.OWNER_WRITE);
	}
	if ((mode & 0100) != 0) {
	perms.add(PosixFilePermission.OWNER_EXECUTE);
	}
	if ((mode & 0040) != 0) {
	perms.add(PosixFilePermission.GROUP_READ);
	}
	if ((mode & 0020) != 0) {
	perms.add(PosixFilePermission.GROUP_WRITE);
	}
	if ((mode & 0010) != 0) {
	perms.add(PosixFilePermission.GROUP_EXECUTE);
	}
	if ((mode & 0004) != 0) {
	perms.add(PosixFilePermission.OTHERS_READ);
	}
	if ((mode & 0002) != 0) {
	perms.add(PosixFilePermission.OTHERS_WRITE);
	}
	if ((mode & 0001) != 0) {
	perms.add(PosixFilePermission.OTHERS_EXECUTE);
	}
	return perms;
	}

	}