| /******************************************************************************* |
| * Copyright (c) 2008, 2015 IBM 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.equinox.internal.p2.touchpoint.eclipse.actions; |
| |
| import java.io.*; |
| import java.util.Map; |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.equinox.internal.p2.touchpoint.eclipse.Util; |
| import org.eclipse.equinox.p2.engine.spi.ProvisioningAction; |
| import org.eclipse.osgi.util.NLS; |
| |
| //This is basically a copy of the ln action in the native touchpoint only it provides @artifact support and does not support the backup store. |
| //We should just use the native touchpoint copy when we have a replacement for the use of @artifact in parameters |
| public class LinkAction extends ProvisioningAction { |
| public static final String ID = "ln"; //$NON-NLS-1$ |
| private static final boolean WINDOWS = java.io.File.separatorChar == '\\'; |
| |
| public IStatus execute(Map<String, Object> parameters) { |
| String targetDir = (String) parameters.get(ActionConstants.PARM_TARGET_DIR); |
| if (targetDir == null) |
| return Util.createError(NLS.bind(Messages.parameter_not_set, ActionConstants.PARM_TARGET_DIR, ID)); |
| |
| if (targetDir.equals(ActionConstants.PARM_AT_ARTIFACT)) { |
| try { |
| targetDir = Util.resolveArtifactParam(parameters); |
| } catch (CoreException e) { |
| return e.getStatus(); |
| } |
| File dir = new File(targetDir); |
| if (!dir.isDirectory()) { |
| return Util.createError(NLS.bind(Messages.artifact_not_directory, dir)); |
| } |
| } |
| |
| String linkTarget = (String) parameters.get(ActionConstants.PARM_LINK_TARGET); |
| if (linkTarget == null) |
| return Util.createError(NLS.bind(Messages.parameter_not_set, ActionConstants.PARM_LINK_TARGET, ID)); |
| |
| String linkName = (String) parameters.get(ActionConstants.PARM_LINK_NAME); |
| if (linkName == null) |
| return Util.createError(NLS.bind(Messages.parameter_not_set, ActionConstants.PARM_LINK_NAME, ID)); |
| |
| String force = (String) parameters.get(ActionConstants.PARM_LINK_FORCE); |
| |
| ln(targetDir, linkTarget, linkName, Boolean.parseBoolean(force)); |
| return Status.OK_STATUS; |
| } |
| |
| public IStatus undo(Map<String, Object> parameters) { |
| return null; |
| } |
| |
| /** |
| * Creates a link to the source file linkTarget - the created link is targetDir/linkName. |
| * TODO: Only runs on systems with a "ln -s" command supported. |
| * TODO: Does not report errors if the "ln -s" fails |
| * @param targetDir the directory where the link is created |
| * @param linkTarget the source |
| * @param linkName the name of the created link |
| * @param force if overwrite of existing file should be performed. |
| */ |
| private void ln(String targetDir, String linkTarget, String linkName, boolean force) { |
| if (WINDOWS) |
| return; |
| |
| Runtime r = Runtime.getRuntime(); |
| try { |
| Process process = r.exec(new String[] {"ln", "-s" + (force ? "f" : ""), linkTarget, targetDir + IPath.SEPARATOR + linkName}); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ |
| readOffStream(process.getErrorStream()); |
| readOffStream(process.getInputStream()); |
| try { |
| process.waitFor(); |
| } catch (InterruptedException e) { |
| // mark thread interrupted and continue |
| Thread.currentThread().interrupt(); |
| } |
| } catch (IOException e) { |
| // ignore |
| } |
| } |
| |
| private void readOffStream(InputStream inputStream) { |
| BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream)); |
| try { |
| while (reader.readLine() != null) { |
| // do nothing |
| } |
| } catch (IOException e) { |
| // ignore |
| } finally { |
| try { |
| reader.close(); |
| } catch (IOException e) { |
| // ignore |
| } |
| } |
| } |
| } |