| /* |
| * 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.commons.compress.archivers.tar; |
| |
| import java.io.BufferedInputStream; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.InputStream; |
| |
| /** |
| * Simple command line application that lists the contents of a tar archive. |
| * |
| * <p>The name of the archive must be given as a command line argument.</p> |
| * <p>The optional second argument specifies the encoding to assume for file names.</p> |
| * |
| * @since 1.11 |
| */ |
| public final class TarLister { |
| |
| public static void main(final String[] args) throws Exception { |
| if (args.length == 0) { |
| usage(); |
| return; |
| } |
| System.out.println("Analysing " + args[0]); |
| final File f = new File(args[0]); |
| if (!f.isFile()) { |
| System.err.println(f + " doesn't exist or is a directory"); |
| } |
| final InputStream fis = new BufferedInputStream(new FileInputStream(f)); |
| TarArchiveInputStream ais; |
| if (args.length > 1) { |
| ais = new TarArchiveInputStream(fis, args[1]); |
| } else { |
| ais = new TarArchiveInputStream(fis); |
| } |
| System.out.println("Created " + ais.toString()); |
| TarArchiveEntry ae; |
| while((ae=ais.getNextTarEntry()) != null){ |
| log(ae); |
| } |
| ais.close(); |
| fis.close(); |
| } |
| |
| private static void usage() { |
| System.out.println("Parameters: archive-name [encoding]"); |
| } |
| |
| private static void log(final TarArchiveEntry ae) { |
| final StringBuilder sb = new StringBuilder(Integer.toOctalString(ae.getMode())) |
| .append(" "); |
| String name = ae.getUserName(); |
| if (name != null && name.length() > 0) { |
| sb.append(name); |
| } else { |
| sb.append(ae.getLongUserId()); |
| } |
| sb.append("/"); |
| name = ae.getGroupName(); |
| if (name != null && name.length() > 0) { |
| sb.append(name); |
| } else { |
| sb.append(ae.getLongGroupId()); |
| } |
| sb.append(" "); |
| if (ae.isSparse()) { |
| sb.append(ae.getRealSize()); |
| } else if (ae.isCharacterDevice() || ae.isBlockDevice()) { |
| sb.append(ae.getDevMajor()).append(",").append(ae.getDevMinor()); |
| } else { |
| sb.append(ae.getSize()); |
| } |
| sb.append(" ").append(ae.getLastModifiedDate()).append(" "); |
| sb.append(ae.getName()); |
| if (ae.isSymbolicLink() || ae.isLink()) { |
| if (ae.isSymbolicLink()) { |
| sb.append(" -> "); |
| } else { |
| sb.append(" link to "); |
| } |
| sb.append(ae.getLinkName()); |
| } |
| if (ae.isSparse()) { |
| sb.append(" (sparse)"); |
| } |
| System.out.println(sb); |
| } |
| |
| } |