tikhomirov@32: /*
tikhomirov@32:  * Copyright (c) 2011 Artem Tikhomirov 
tikhomirov@32:  */
tikhomirov@32: package com.tmate.hgkit.console;
tikhomirov@32: 
tikhomirov@32: import java.io.File;
tikhomirov@35: import java.util.LinkedList;
tikhomirov@32: 
tikhomirov@32: import com.tmate.hgkit.fs.DataAccess;
tikhomirov@32: import com.tmate.hgkit.fs.DataAccessProvider;
tikhomirov@32: import com.tmate.hgkit.ll.Nodeid;
tikhomirov@32: 
tikhomirov@32: /**
tikhomirov@32:  * @see http://mercurial.selenic.com/wiki/BundleFormat
tikhomirov@32:  *
tikhomirov@32:  * @author artem
tikhomirov@32:  */
tikhomirov@32: public class Bundle {
tikhomirov@32: 
tikhomirov@32: 	public static void main(String[] args) throws Exception {
tikhomirov@32: 		File bundleFile = new File("/temp/hg/hg-bundle-a78c980749e3.tmp");
tikhomirov@32: 		DataAccessProvider dap = new DataAccessProvider();
tikhomirov@32: 		DataAccess da = dap.create(bundleFile);
tikhomirov@34: 		try {
tikhomirov@35: 			LinkedList<String> names = new LinkedList<String>();
tikhomirov@35: 			if (!da.isEmpty()) {
tikhomirov@35: 				System.out.println("Changelog group");
tikhomirov@35: 				readGroup(da);
tikhomirov@35: 				System.out.println("Manifest group");
tikhomirov@35: 				readGroup(da);
tikhomirov@35: 				while (!da.isEmpty()) {
tikhomirov@35: 					int fnameLen = da.readInt();
tikhomirov@35: 					if (fnameLen <= 4) {
tikhomirov@35: 						break; // null chunk, the last one.
tikhomirov@35: 					}
tikhomirov@35: 					byte[] fname = new byte[fnameLen - 4];
tikhomirov@35: 					da.readBytes(fname, 0, fname.length);
tikhomirov@35: 					names.add(new String(fname));
tikhomirov@35: 					System.out.println(names.getLast());
tikhomirov@35: 					readGroup(da);
tikhomirov@34: 				}
tikhomirov@35: 			}
tikhomirov@35: 			System.out.println(names.size());
tikhomirov@35: 			for (String s : names) {
tikhomirov@35: 				System.out.println(s);
tikhomirov@32: 			}
tikhomirov@34: 		} finally {
tikhomirov@34: 			da.done();
tikhomirov@32: 		}
tikhomirov@32: 	}
tikhomirov@35: 
tikhomirov@35: 	private static void readGroup(DataAccess da) throws Exception {
tikhomirov@35: 		int len = da.readInt();
tikhomirov@35: 		while (len > 4 && !da.isEmpty()) {
tikhomirov@35: 			byte[] nb = new byte[80];
tikhomirov@35: 			da.readBytes(nb, 0, 80);
tikhomirov@35: 			Nodeid node = Nodeid.fromBinary(nb, 0);
tikhomirov@35: 			Nodeid p1 = Nodeid.fromBinary(nb, 20);
tikhomirov@35: 			Nodeid p2 = Nodeid.fromBinary(nb, 40);
tikhomirov@35: 			Nodeid cs = Nodeid.fromBinary(nb, 60);
tikhomirov@35: 			byte[] data = new byte[len-84];
tikhomirov@35: 			da.readBytes(data, 0, data.length);
tikhomirov@35: 			System.out.printf("%6d %s %s %s %s\n", len, node, p1, p2, cs);
tikhomirov@35: 			System.out.println(new String(data));
tikhomirov@35: 			len = da.isEmpty() ? 0 : da.readInt();
tikhomirov@35: 		}
tikhomirov@35: 	}
tikhomirov@32: }