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/* |
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* The Apache Software License, Version 1.1 |
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* |
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* Copyright (c) 2000 The Apache Software Foundation. All rights |
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* reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, if |
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* any, must include the following acknowlegement: |
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* "This product includes software developed by the |
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* Apache Software Foundation (http://www.apache.org/)." |
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* Alternately, this acknowlegement may appear in the software itself, |
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* if and wherever such third-party acknowlegements normally appear. |
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* |
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* 4. The names "The Jakarta Project", "Tomcat", and "Apache Software |
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* Foundation" must not be used to endorse or promote products derived |
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* from this software without prior written permission. For written |
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* permission, please contact apache@apache.org. |
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* |
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* 5. Products derived from this software may not be called "Apache" |
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* nor may "Apache" appear in their names without prior written |
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* permission of the Apache Group. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This software consists of voluntary contributions made by many |
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* individuals on behalf of the Apache Software Foundation. For more |
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* information on the Apache Software Foundation, please see |
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* <http://www.apache.org/>. |
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*/ |
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package org.apache.tools.ant.taskdefs; |
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import org.apache.tools.ant.*; |
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import org.apache.tools.ant.types.*; |
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import java.io.*; |
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import java.util.Enumeration; |
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import java.util.Date; |
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import java.util.Vector; |
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/** |
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* Will set the given property if the specified target has a timestamp |
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* greater than all of the source files. |
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* |
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* @author William Ferguson <a href="mailto:williamf@mincom.com">williamf@mincom.com</a> |
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* @author Hiroaki Nakamura <a href="mailto:hnakamur@mc.neweb.ne.jp">hnakamur@mc.neweb.ne.jp</a> |
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* @author <a href="mailto:stefan.bodewig@megabit.net">Stefan Bodewig</a> |
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*/ |
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public class UpToDate extends MatchingTask { |
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private String _property; |
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private File _targetFile; |
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private Vector sourceFileSets = new Vector(); |
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/** |
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* The property to set if the target file is more up to date than each of |
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* the source files. |
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* |
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* @param property the name of the property to set if Target is up to date. |
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*/ |
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public void setProperty(String property) { |
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_property = property; |
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} |
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/** |
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* The file which must be more up to date than each of the source files |
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* if the property is to be set. |
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* |
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* @param file the file which we are checking against. |
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*/ |
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public void setTargetFile(File file) { |
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_targetFile = file; |
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} |
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/** |
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* Nested <srcfiles> element. |
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*/ |
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public void addSrcfiles(FileSet fs) { |
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sourceFileSets.addElement(fs); |
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} |
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/** |
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* Sets property to true if target file has a more recent timestamp than |
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* each of the source files. |
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*/ |
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public void execute() throws BuildException { |
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if (sourceFileSets.size() == 0) { |
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throw new BuildException("At least one <srcfiles> element must be set"); |
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} |
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if (_targetFile == null) { |
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throw new BuildException("The targetfile attribute must be set"); |
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} |
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// if not there then it can't be up to date |
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if (!_targetFile.exists()) return; |
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Enumeration enum = sourceFileSets.elements(); |
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boolean upToDate = true; |
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while (upToDate && enum.hasMoreElements()) { |
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FileSet fs = (FileSet) enum.nextElement(); |
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DirectoryScanner ds = fs.getDirectoryScanner(project); |
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upToDate = upToDate && scanDir(fs.getDir(project), _targetFile, |
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ds.getIncludedFiles()); |
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} |
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if (upToDate) { |
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this.project.setProperty(_property, "true"); |
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log("File \"" + _targetFile.getAbsolutePath() + "\" is up to date.", |
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Project.MSG_VERBOSE); |
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} |
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} |
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protected boolean scanDir(File srcDir, File destFile, String files[]) { |
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long destLastModified = destFile.lastModified(); |
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long now = (new Date()).getTime(); |
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if (destLastModified > now) { |
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log("Warning: destfile modified in the future: " + |
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destFile.getPath(), Project.MSG_WARN); |
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} |
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for (int i = 0; i < files.length; i++) { |
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File srcFile = new File(srcDir, files[i]); |
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long srcLastModified = srcFile.lastModified(); |
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if (srcLastModified > now) { |
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log("Warning: file modified in the future: " + |
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files[i], Project.MSG_WARN); |
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} |
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if (srcLastModified > destLastModified) { |
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return false; |
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} |
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} |
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return true; |
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} |
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} |
Stefan Bodewig