private static void chmod(Map<File, Map<Integer, List<String>>> chmodMap) throws IOException { for (Map.Entry<File, Map<Integer, List<String>>> entry : chmodMap.entrySet()) for (Map.Entry<Integer, List<String>> dirEntry : entry.getValue().entrySet()) for (List<String> files : splitList(dirEntry.getValue(), MAX_FILES_PER_COMMAND)) OsUtil.chmod( entry.getKey(), dirEntry.getKey().intValue(), files.toArray(new String[files.size()])); }
/** * Unpack the content read from <i>source</i> into <i>targetFolder</i>. If the * <i>skipTopFolder</i> is set, then don't assume that the archive contains one single folder and * unpack the content of that folder, not including the folder itself. * * @param source The input source. Must be in <i>TAR</i> format. * @param targetFolder The destination folder for the unpack. Not used when a <tt>fileCatcher</tt> * is provided * @param skipTopFolder Set to <code>true</code> to unpack beneath the top folder of the archive. * The archive must consist of one single folder and nothing else in order for this to work. * @param fileCatcher Used when specific files should be picked from the archive without writing * them to disk. Can be <tt>null</tt>. * @throws IOException */ public static void unpack( InputStream source, File targetFolder, boolean skipTopFolder, FileCatcher fileCatcher) throws IOException { String topFolderName = null; Map<File, Map<Integer, List<String>>> chmodMap = new HashMap<File, Map<Integer, List<String>>>(); TarArchiveInputStream in = new TarArchiveInputStream(source); try { TarArchiveEntry te = in.getNextTarEntry(); if (te == null) { throw new IOException("No entry in the tar file"); } do { if (te.isGlobalPaxHeader()) continue; String name = te.getName(); if (name.startsWith("./._")) // MacOS specific extended attributes addition. Just skip it continue; if (skipTopFolder) { int firstSlash = name.indexOf('/'); if (firstSlash < 0) throw new IOException("Archive doesn't contain one single folder"); String tfName = name.substring(0, firstSlash); if (topFolderName == null) topFolderName = tfName; else if (!tfName.equals(topFolderName)) throw new IOException("Archive doesn't contain one single folder"); name = name.substring(firstSlash + 1); } if (name.length() == 0) continue; String linkName = te.getLinkName(); if (linkName != null) { if (linkName.trim().equals("")) linkName = null; } if (fileCatcher != null) { if (linkName == null && !te.isDirectory() && fileCatcher.accept(name)) { if (fileCatcher.catchData(name, in)) // We're done here return; } continue; } File outFile = new File(targetFolder, name); if (linkName != null) { if (!OsUtil.link(targetFolder, name, te.getLinkName())) throw new IOException( "Archive contains links but they are not supported on this platform"); } else { if (te.isDirectory()) { outFile.mkdirs(); } else { outFile.getParentFile().mkdirs(); OutputStream target = new FileOutputStream(outFile); StreamUtil.copy(in, target); target.close(); outFile.setLastModified(te.getModTime().getTime()); } registerChmodFile(chmodMap, targetFolder, Integer.valueOf(te.getMode()), name); } } while ((te = in.getNextTarEntry()) != null); } finally { StreamUtil.close(in); } chmod(chmodMap); }