diff options
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/Patch.java')
| -rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/Patch.java | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/Patch.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/Patch.java new file mode 100644 index 00000000..96ab0823 --- /dev/null +++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/Patch.java @@ -0,0 +1,215 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +package org.apache.tools.ant.taskdefs; + +import java.io.File; +import java.io.IOException; + +import org.apache.tools.ant.BuildException; +import org.apache.tools.ant.Project; +import org.apache.tools.ant.Task; +import org.apache.tools.ant.types.Commandline; + +/** + * Patches a file by applying a 'diff' file to it; requires "patch" to be + * on the execution path. + * + * @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(); + + /** + * Halt on error return value from patch invocation. + */ + private boolean failOnError = false; + + /** + * The file to patch; optional if it can be inferred from + * the diff file + * @param file the file to patch + */ + public void setOriginalfile(File file) { + originalFile = file; + } + + /** + * The name of a file to send the output to, instead of patching + * the file(s) in place; optional. + * @param file the file to send the output to + * @since Ant 1.6 + */ + public void setDestfile(File file) { + if (file != null) { + cmd.createArgument().setValue("-o"); + cmd.createArgument().setFile(file); + } + } + + /** + * The file containing the diff output; required. + * @param file the file containing the diff output + */ + public void setPatchfile(File file) { + if (!file.exists()) { + throw new BuildException("patchfile " + file + " doesn\'t exist", + getLocation()); + } + cmd.createArgument().setValue("-i"); + cmd.createArgument().setFile(file); + havePatchfile = true; + } + + /** + * flag to create backups; optional, default=false + * @param backups if true create backups + */ + public void setBackups(boolean backups) { + if (backups) { + cmd.createArgument().setValue("-b"); + } + } + + /** + * flag to ignore whitespace differences; default=false + * @param ignore if true ignore whitespace differences + */ + 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 + * @exception BuildException if num is < 0, or other errors + */ + public void setStrip(int num) throws BuildException { + if (num < 0) { + throw new BuildException("strip has to be >= 0", getLocation()); + } + cmd.createArgument().setValue("-p" + num); + } + + /** + * Work silently unless an error occurs; optional, default=false + * @param q if true suppress set the -s option on the patch command + */ + public void setQuiet(boolean q) { + if (q) { + cmd.createArgument().setValue("-s"); + } + } + + /** + * Assume patch was created with old and new files swapped; optional, + * default=false + * @param r if true set the -R option on the patch command + */ + 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. + * @param directory the directory to run the patch command in + * @since Ant 1.5 + */ + public void setDir(File directory) { + this.directory = directory; + } + + /** + * If <code>true</code>, stop the build process if the patch command + * exits with an error status. + * @param value <code>true</code> if it should halt, otherwise + * <code>false</code>. The default is <code>false</code>. + * @since Ant 1.8.0 + */ + public void setFailOnError(boolean value) { + failOnError = value; + } + + private static final String PATCH = "patch"; + + /** + * 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", + getLocation()); + } + 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.", + getLocation()); + } else { + throw new BuildException("directory " + directory + + " doesn\'t exist", getLocation()); + } + } else { + exe.setWorkingDirectory(getProject().getBaseDir()); + } + + log(toExecute.describeCommand(), Project.MSG_VERBOSE); + try { + int returncode = exe.execute(); + if (Execute.isFailure(returncode)) { + String msg = "'" + PATCH + "' failed with exit code " + + returncode; + if (failOnError) { + throw new BuildException(msg); + } else { + log(msg, Project.MSG_ERR); + } + } + } catch (IOException e) { + throw new BuildException(e, getLocation()); + } + } +} |