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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.optional; |
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import org.apache.tools.ant.BuildException; |
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import org.apache.tools.ant.DirectoryScanner; |
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import org.apache.tools.ant.Project; |
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import org.apache.tools.ant.taskdefs.MatchingTask; |
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import org.apache.tools.ant.types.Commandline; |
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import org.apache.tools.ant.types.Commandline.Argument; |
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import java.io.File; |
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/** |
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* Convert files from native encodings to ascii. |
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* |
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* @author Drew Sudell <asudell@acm.org> |
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*/ |
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public class Native2Ascii extends MatchingTask { |
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private boolean reverse = false; // convert from ascii back to native |
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private String encoding = null; // encoding to convert to/from |
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private File srcDir = null; // Where to find input files |
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private File destDir = null; // Where to put output files |
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private String extension = null; // Extension of output files if different |
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/** |
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* Flag the conversion to run in the reverse sense, |
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* that is Ascii to Native encoding. |
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* |
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* @param reverse True if the conversion is to be reversed, |
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* otherwise false; |
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*/ |
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public void setReverse(boolean reverse){ |
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this.reverse = reverse; |
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} |
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/** |
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* Set the encoding to translate to/from. |
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* If unset, the default encoding for the JVM is used. |
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* |
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* @param encoding String containing the name of the Native |
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* encoding to convert from or to. |
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*/ |
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public void setEncoding(String encoding){ |
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this.encoding = encoding; |
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} |
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/** |
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* Set the source directory in which to find files to convert. |
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* |
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* @param srcDir Direcrory to find input file in. |
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*/ |
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public void setSrc(File srcDir){ |
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this.srcDir = srcDir; |
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} |
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/** |
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* Set the destination dirctory to place converted files into. |
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* |
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* @param destDir directory to place output file into. |
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*/ |
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public void setDest(File destDir){ |
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this.destDir = destDir; |
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} |
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/** |
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* Set the extension which converted files should have. |
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* If unset, files will not be renamed. |
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* |
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* @param ext File extension to use for converted files. |
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*/ |
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public void setExt(String ext){ |
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this.extension = ext; |
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} |
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public void execute() throws BuildException { |
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Commandline baseCmd = null; // the common portion of our cmd line |
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DirectoryScanner scanner = null; // Scanner to find our inputs |
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String[] files; // list of files to process |
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// default srcDir to basedir |
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if (srcDir == null){ |
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srcDir = project.resolveFile("."); |
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} |
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// Require destDir |
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if (destDir == null){ |
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throw new BuildException("The dest attribute must be set."); |
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} |
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// if src and dest dirs are the same, require the extension |
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// to be set, so we don't stomp every file. One could still |
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// include a file with the same extension, but .... |
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if (srcDir.equals(destDir) && (extension == null)){ |
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throw new BuildException("The ext attribut must be set if" |
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+ " src and dest dirs are the same."); |
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} |
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scanner = getDirectoryScanner(srcDir); |
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log("Converting files from " + srcDir + " to " + destDir); |
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files = scanner.getIncludedFiles(); |
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for (int i = 0; i < files.length; i++){ |
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convert(files[i]); |
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} |
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} |
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/** |
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* Convert a single file. |
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* |
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* @param fileName Name of the file to convert (relative to srcDir). |
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*/ |
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private void convert(String fileName) throws BuildException { |
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Commandline cmd = new Commandline(); // Command line to run |
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File srcFile; // File to convert |
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File destFile; // where to put the results |
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// Set up the basic args (this could be done once, but |
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// it's cleaner here) |
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if (reverse){ |
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cmd.createArgument().setValue("-reverse"); |
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} |
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if (encoding != null){ |
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cmd.createArgument().setValue("-encoding"); |
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cmd.createArgument().setValue(encoding); |
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} |
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// Build the full file names, substuting the extension on the |
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// destination file if needed. |
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srcFile = new File(srcDir, fileName); |
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if (extension != null){ |
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destFile |
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= new File(destDir, |
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fileName.substring(0, fileName.lastIndexOf('.')) |
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+ extension); |
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}else{ |
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destFile = new File(destDir, fileName); |
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} |
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cmd.createArgument().setFile(srcFile); |
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cmd.createArgument().setFile(destFile); |
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// Only process if dest not newer than src |
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if (! destFile.exists() |
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|| (destFile.lastModified() < srcFile.lastModified())){ |
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// Make sure we're not about to clobber something |
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if (srcFile.equals(destFile)){ |
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throw new BuildException("file " + srcFile |
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+ " would overwrite its self"); |
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} |
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// Make intermediate directories if needed |
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// XXX JDK 1.1 dosen't have File.getParentFile, |
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String parentName = destFile.getParent(); |
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if (parentName != null){ |
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File parentFile = new File(parentName); |
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if ((! parentFile.exists()) && ( ! parentFile.mkdirs())){ |
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throw new BuildException("cannot create parent directory " |
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+ parentName); |
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} |
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} |
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log("converting " + fileName, Project.MSG_VERBOSE); |
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sun.tools.native2ascii.Main n2a |
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= new sun.tools.native2ascii.Main(); |
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if(! n2a.convert(cmd.getArguments())){ |
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throw new BuildException("conversion failed"); |
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} |
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} |
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} |
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} |
Stefan Bodewig