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annotate src/org/tmatesoft/hg/internal/ChangelogHelper.java @ 136:947bf231acbb

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Strip off comments in config file
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 16 Feb 2011 22:08:58 +0100
parents 4a948ec83980
children 1c1891ad1c73
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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.internal;
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19 import java.util.TreeMap;
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20
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645829962785 core.Cset renamed to HgChangeset; repo.Changeset moved into HgChangelog
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21 import org.tmatesoft.hg.repo.HgChangelog.Changeset;
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22 import org.tmatesoft.hg.repo.HgDataFile;
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23 import org.tmatesoft.hg.repo.HgInternals;
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24 import org.tmatesoft.hg.repo.HgRepository;
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25 import org.tmatesoft.hg.util.Path;
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26
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27 /**
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28 *
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29 * @author Artem Tikhomirov
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30 * @author TMate Software Ltd.
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31 */
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32 public class ChangelogHelper {
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33 private final int leftBoundary;
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34 private final HgRepository repo;
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35 private final TreeMap<Integer, Changeset> cache = new TreeMap<Integer, Changeset>();
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36
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37 /**
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38 * @param hgRepo
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39 * @param leftBoundaryRevision walker never visits revisions with local numbers less than specified,
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40 * IOW only revisions [leftBoundaryRevision..TIP] are considered.
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41 */
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42 public ChangelogHelper(HgRepository hgRepo, int leftBoundaryRevision) {
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43 repo = hgRepo;
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44 leftBoundary = leftBoundaryRevision;
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45 }
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47 /**
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48 * @return the repo
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49 */
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50 public HgRepository getRepo() {
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51 return repo;
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52 }
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53
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54 /**
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55 * Walks changelog in reverse order
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56 * @param file
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57 * @return changeset where specified file is mentioned among affected files, or
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58 * <code>null</code> if none found up to leftBoundary
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59 */
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60 public Changeset findLatestChangeWith(Path file) {
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61 HgDataFile df = repo.getFileNode(file);
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62 int changelogRev = df.getChangesetLocalRevision(HgRepository.TIP);
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63 if (changelogRev >= leftBoundary) {
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64 // the method is likely to be invoked for different files,
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65 // while changesets might be the same. Cache 'em not to read too much.
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66 Changeset cs = cache.get(changelogRev);
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67 if (cs == null) {
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68 cs = repo.getChangelog().range(changelogRev, changelogRev).get(0);
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69 cache.put(changelogRev, cs);
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70 }
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71 return cs;
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72 }
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73 return null;
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74 }
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75
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76 public String getNextCommitUsername() {
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77 return new HgInternals(repo).getNextCommitUsername();
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78 }
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79 }