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annotate cmdline/org/tmatesoft/hg/console/Outgoing.java @ 170:71ddbf8603e8

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Initial clone: populate given directory from a bundle. Everything but remote server access is there, albeit prototype code style
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 23 Mar 2011 20:46:00 +0100
parents a3a2e5deb320
children 2c3e96674e2a
rev   line source
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1 /*
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2 * Copyright (c) 2011 TMate Software Ltd
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; version 2 of the License.
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7 *
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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12 *
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13 * For information on how to redistribute this software under
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14 * the terms of a license other than GNU General Public License
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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.console;
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19 import java.util.Collection;
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20 import java.util.LinkedHashSet;
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21 import java.util.LinkedList;
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22 import java.util.List;
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23
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24 import org.tmatesoft.hg.core.Nodeid;
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25 import org.tmatesoft.hg.repo.HgChangelog;
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26 import org.tmatesoft.hg.repo.HgRepository;
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27
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29 /**
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30 * WORK IN PROGRESS, DO NOT USE
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31 * hg out
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32 *
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33 * @author Artem Tikhomirov
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34 * @author TMate Software Ltd.
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35 */
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36 public class Outgoing {
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37
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38 public static void main(String[] args) throws Exception {
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39 Options cmdLineOpts = Options.parse(args);
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40 HgRepository hgRepo = cmdLineOpts.findRepository();
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41 if (hgRepo.isInvalid()) {
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42 System.err.printf("Can't find repository in: %s\n", hgRepo.getLocation());
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43 return;
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44 }
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45 // FIXME detection of
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46 List<Nodeid> base = new LinkedList<Nodeid>();
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47 base.add(Nodeid.fromAscii("d6d2a630f4a6d670c90a5ca909150f2b426ec88f".getBytes(), 0, 40));
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48 //
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49 // fill with all known
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50 HgChangelog.ParentWalker pw = hgRepo.getChangelog().new ParentWalker();
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51 pw.init();
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52 LinkedHashSet<Nodeid> sendToRemote = new LinkedHashSet<Nodeid>(pw.allNodes());
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53 dump("initial state", sendToRemote);
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54 // remove base and its parents
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55 LinkedList<Nodeid> queueToClean = new LinkedList<Nodeid>(base);
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56 while (!queueToClean.isEmpty()) {
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57 Nodeid nid = queueToClean.removeFirst();
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58 if (sendToRemote.remove(nid)) {
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59 pw.appendParentsOf(nid, queueToClean);
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60 }
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61 }
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62 dump("Clean from known parents", sendToRemote);
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63 // XXX I think sendToRemote is what we actually need here - everything local, missing from remote
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64 // however, if we need to send only a subset of these, need to proceed.
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65 LinkedList<Nodeid> result = new LinkedList<Nodeid>();
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66 // find among left those without parents
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67 for (Nodeid nid : sendToRemote) {
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68 Nodeid p1 = pw.firstParent(nid);
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69 // in fact, we may assume nulls are never part of sendToRemote
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70 if (p1 != null && !sendToRemote.contains(p1)) {
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71 Nodeid p2 = pw.secondParent(nid);
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72 if (p2 == null || !sendToRemote.contains(p2)) {
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73 result.add(nid);
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74 }
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75 }
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76 }
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77 dump("Result", result);
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78 // final outcome is the collection of nodes between(lastresult and revision/tip)
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79 //
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80 System.out.println("TODO: nodes between result and tip");
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81 }
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83 private static void dump(String s, Collection<Nodeid> c) {
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84 System.out.println(s);
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85 for (Nodeid n : c) {
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86 System.out.println(n);
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87 }
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88 }
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89 }