| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2000,2002 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, if |
| * any, must include the following acknowlegement: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowlegement may appear in the software itself, |
| * if and wherever such third-party acknowlegements normally appear. |
| * |
| * 4. The names "The Jakarta Project", "Ant", and "Apache Software |
| * Foundation" must not be used to endorse or promote products derived |
| * from this software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache" |
| * nor may "Apache" appear in their names without prior written |
| * permission of the Apache Group. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| package org.apache.tools.ant.taskdefs; |
| |
| import org.apache.tools.ant.Task; |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.Project; |
| import org.apache.tools.ant.types.Commandline; |
| import java.io.File; |
| import java.io.IOException; |
| |
| /** |
| * Patches a file by applying a 'diff' file to it; requires "patch" to be |
| * on the execution path. |
| * @author <a href="mailto:stefan.bodewig@epost.de">Stefan Bodewig</a> |
| * |
| * @since Ant 1.1 |
| * |
| * @ant.task category="utility" |
| */ |
| public class Patch extends Task { |
| |
| private File originalFile; |
| private File directory; |
| private boolean havePatchfile = false; |
| private Commandline cmd = new Commandline(); |
| |
| /** |
| * The file to patch; optional if it can be inferred from |
| * the diff file |
| */ |
| public void setOriginalfile(File file) { |
| originalFile = file; |
| } |
| |
| /** |
| * The file containing the diff output; required. |
| */ |
| public void setPatchfile(File file) { |
| if (!file.exists()) { |
| throw new BuildException("patchfile " + file + " doesn\'t exist", |
| location); |
| } |
| cmd.createArgument().setValue("-i"); |
| cmd.createArgument().setFile(file); |
| havePatchfile = true; |
| } |
| |
| /** |
| * flag to create backups; optional, default=false |
| */ |
| public void setBackups(boolean backups) { |
| if (backups) { |
| cmd.createArgument().setValue("-b"); |
| } |
| } |
| |
| /** |
| * flag to ignore whitespace differences; default=false |
| */ |
| public void setIgnorewhitespace(boolean ignore) { |
| if (ignore) { |
| cmd.createArgument().setValue("-l"); |
| } |
| } |
| |
| /** |
| * Strip the smallest prefix containing <i>num</i> leading slashes |
| * from filenames. |
| * |
| * <p>patch's <i>-p</i> option. |
| * @param num number of lines to strip |
| */ |
| public void setStrip(int num) throws BuildException { |
| if (num < 0) { |
| throw new BuildException("strip has to be >= 0", location); |
| } |
| cmd.createArgument().setValue("-p" + num); |
| } |
| |
| /** |
| * Work silently unless an error occurs; optional, default=false |
| */ |
| public void setQuiet(boolean q) { |
| if (q) { |
| cmd.createArgument().setValue("-s"); |
| } |
| } |
| |
| /** |
| * Assume patch was created with old and new files swapped; optional, |
| * default=false |
| */ |
| public void setReverse(boolean r) { |
| if (r) { |
| cmd.createArgument().setValue("-R"); |
| } |
| } |
| |
| /** |
| * The directory to run the patch command in, defaults to the |
| * project's base directory. |
| * |
| * @since Ant 1.5 |
| */ |
| public void setDir(File directory) throws BuildException { |
| this.directory = directory; |
| } |
| |
| /** |
| * execute patch |
| * @throws BuildException when it all goes a bit pear shaped |
| */ |
| public void execute() throws BuildException { |
| if (!havePatchfile) { |
| throw new BuildException("patchfile argument is required", |
| location); |
| } |
| Commandline toExecute = (Commandline) cmd.clone(); |
| toExecute.setExecutable("patch"); |
| |
| if (originalFile != null) { |
| toExecute.createArgument().setFile(originalFile); |
| } |
| |
| Execute exe = new Execute(new LogStreamHandler(this, Project.MSG_INFO, |
| Project.MSG_WARN), |
| null); |
| exe.setCommandline(toExecute.getCommandline()); |
| |
| if (directory != null) { |
| if (directory.exists() && directory.isDirectory()) { |
| exe.setWorkingDirectory(directory); |
| } else if (!directory.isDirectory()) { |
| throw new BuildException(directory + " is not a directory.", |
| location); |
| } else { |
| throw new BuildException("directory " + directory |
| + " doesn\'t exist", location); |
| } |
| } else { |
| exe.setWorkingDirectory(getProject().getBaseDir()); |
| } |
| |
| log(toExecute.describeCommand(), Project.MSG_VERBOSE); |
| try { |
| exe.execute(); |
| } catch (IOException e) { |
| throw new BuildException(e, location); |
| } |
| } |
| |
| }// Patch |