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annotate src/org/tmatesoft/hg/core/HgPullCommand.java @ 660:4fd317a2fecf

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Pull: phase1 get remote changes and add local revisions
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 09 Jul 2013 21:46:45 +0200
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children 46b56864b483
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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1 /*
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2 * Copyright (c) 2013 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.core;
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18
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19 import java.util.List;
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20
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21 import org.tmatesoft.hg.internal.AddRevInspector;
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22 import org.tmatesoft.hg.internal.COWTransaction;
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23 import org.tmatesoft.hg.internal.Internals;
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24 import org.tmatesoft.hg.internal.PhasesHelper;
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25 import org.tmatesoft.hg.internal.RepositoryComparator;
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26 import org.tmatesoft.hg.internal.RevisionSet;
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27 import org.tmatesoft.hg.internal.Transaction;
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28 import org.tmatesoft.hg.repo.HgBundle;
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29 import org.tmatesoft.hg.repo.HgChangelog;
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30 import org.tmatesoft.hg.repo.HgInternals;
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31 import org.tmatesoft.hg.repo.HgParentChildMap;
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32 import org.tmatesoft.hg.repo.HgRemoteRepository;
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33 import org.tmatesoft.hg.repo.HgRepository;
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34 import org.tmatesoft.hg.repo.HgRuntimeException;
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35 import org.tmatesoft.hg.util.CancelledException;
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36 import org.tmatesoft.hg.util.ProgressSupport;
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37
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38 /**
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39 *
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40 * @author Artem Tikhomirov
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41 * @author TMate Software Ltd.
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42 */
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43 public class HgPullCommand extends HgAbstractCommand<HgPullCommand> {
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44
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45 private final HgRepository repo;
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46 private HgRemoteRepository remote;
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47
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48 public HgPullCommand(HgRepository hgRepo) {
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49 repo = hgRepo;
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50 }
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51
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52 public HgPullCommand source(HgRemoteRepository hgRemote) {
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53 remote = hgRemote;
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54 return this;
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55 }
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56
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57 public void execute() throws HgRemoteConnectionException, HgIOException, HgLibraryFailureException, CancelledException {
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58 final ProgressSupport progress = getProgressSupport(null);
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59 try {
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60 progress.start(100);
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61 // TODO refactor same code in HgIncomingCommand #getComparator and #getParentHelper
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62 final HgChangelog clog = repo.getChangelog();
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63 final HgParentChildMap<HgChangelog> parentHelper = new HgParentChildMap<HgChangelog>(clog);
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64 parentHelper.init();
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65 final RepositoryComparator comparator = new RepositoryComparator(parentHelper, remote);
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66 // get incoming revisions
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67 comparator.compare(new ProgressSupport.Sub(progress, 50), getCancelSupport(null, true));
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68 final List<Nodeid> common = comparator.getCommon();
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69 // get bundle with changes from remote
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70 HgBundle incoming = remote.getChanges(common);
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71 //
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72 // add revisions to changelog, manifest, files
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73 final Internals implRepo = HgInternals.getImplementationRepo(repo);
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74 final AddRevInspector insp;
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75 Transaction.Factory trFactory = new COWTransaction.Factory();
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76 Transaction tr = trFactory.create(repo);
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77 try {
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78 incoming.inspectAll(insp = new AddRevInspector(implRepo, tr));
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79 tr.commit();
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80 } catch (HgRuntimeException ex) {
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81 tr.rollback();
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82 throw ex;
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83 } catch (RuntimeException ex) {
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84 tr.rollback();
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85 throw ex;
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86 }
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87 progress.worked(45);
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88 RevisionSet added = insp.addedChangesets();
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89
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90 // get remote phases, update local phases to match that of remote
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91 final PhasesHelper phaseHelper = new PhasesHelper(implRepo, parentHelper);
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92 if (phaseHelper.isCapableOfPhases()) {
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93 RevisionSet rsCommon = new RevisionSet(common);
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94 HgRemoteRepository.Phases remotePhases = remote.getPhases();
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95 if (remotePhases.isPublishingServer()) {
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96 final RevisionSet knownPublic = rsCommon.union(added);
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97 RevisionSet newDraft = phaseHelper.allDraft().subtract(knownPublic);
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98 RevisionSet newSecret = phaseHelper.allSecret().subtract(knownPublic);
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99 phaseHelper.updateRoots(newDraft.asList(), newSecret.asList());
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100 } else {
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101 // FIXME refactor reuse from HgPushCommand
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102 }
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103 }
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104 progress.worked(5);
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105 } catch (HgRuntimeException ex) {
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106 throw new HgLibraryFailureException(ex);
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107 } finally {
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108 progress.done();
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109 }
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110 }
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111 }