1 /*
   2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  *
   8  *   - Redistributions of source code must retain the above copyright
   9  *     notice, this list of conditions and the following disclaimer.
  10  *
  11  *   - Redistributions in binary form must reproduce the above copyright
  12  *     notice, this list of conditions and the following disclaimer in the
  13  *     documentation and/or other materials provided with the distribution.
  14  *
  15  *   - Neither the name of Oracle nor the names of its
  16  *     contributors may be used to endorse or promote products derived
  17  *     from this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  20  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  26  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  27  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  28  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31 
  32 /*
  33  * Simple unzip tool using #nashorn and #java
  34  * zip fs file system interface.
  35  */
  36  
  37 if (arguments.length == 0) {
  38     print("Usage: jjs zipfs.js -- <.zip/.jar file> [out dir]");
  39     exit(1);
  40 }
  41  
  42 var File = Java.type("java.io.File");
  43 // output directory where zip is extracted
  44 var outDir = arguments[1];
  45 if (!outDir) {
  46     outDir = ".";
  47 } else {
  48     if (! new File(outDir).isDirectory()) {
  49         print(outDir + " directory does not exist!");
  50         exit(1);
  51     }
  52 }
  53  
  54 var Files = Java.type("java.nio.file.Files");
  55 var FileSystems = Java.type("java.nio.file.FileSystems");
  56 var Paths = Java.type("java.nio.file.Paths");
  57  
  58 var zipfile = Paths.get(arguments[0])
  59 var fs = FileSystems.newFileSystem(zipfile, null);
  60 var root = fs.rootDirectories[0];
  61  
  62 // walk root and handle each Path
  63 Files.walk(root).forEach(
  64     function(p) {
  65         var outPath = outDir +
  66             p.toString().replace('/', File.separatorChar);
  67         print(outPath);
  68         if (Files.isDirectory(p)) {
  69             // create directories as needed
  70             new File(outPath).mkdirs();
  71         } else {
  72             // copy a 'file' resource
  73             Files.copy(p, new File(outPath).toPath());
  74         }
  75     }
  76 );
  77  
  78 // done
  79 fs.close();