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annotate src/org/tmatesoft/hg/internal/RevlogStreamWriter.java @ 532:688c1ab113bb

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Introduce explicit reference to base patch in bundle's group element, use it when cloning to fix defect when few revisions list null,null parents
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 23 Jan 2013 19:14:15 +0100
parents 0f6fa88e2162
children e6f72c9829a6
rev   line source
530
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
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1 /*
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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2 * Copyright (c) 2013 TMate Software Ltd
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
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3 *
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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4 * This program is free software; you can redistribute it and/or modify
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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5 * it under the terms of the GNU General Public License as published by
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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6 * the Free Software Foundation; version 2 of the License.
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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7 *
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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8 * This program is distributed in the hope that it will be useful,
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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11 * GNU General Public License for more details.
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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12 *
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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13 * For information on how to redistribute this software under
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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14 * the terms of a license other than GNU General Public License
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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15 * contact TMate Software at support@hg4j.com
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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16 */
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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17 package org.tmatesoft.hg.internal;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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18
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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19 import static org.tmatesoft.hg.internal.Internals.REVLOGV1_RECORD_SIZE;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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20
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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21 import java.io.IOException;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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22 import java.io.OutputStream;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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23 import java.nio.ByteBuffer;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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24
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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25 import org.tmatesoft.hg.core.Nodeid;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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26
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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27 /**
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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28 *
532
688c1ab113bb Introduce explicit reference to base patch in bundle's group element, use it when cloning to fix defect when few revisions list null,null parents
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29 * TODO check if index is too big and split into index+data
688c1ab113bb Introduce explicit reference to base patch in bundle's group element, use it when cloning to fix defect when few revisions list null,null parents
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parents: 530
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30 *
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0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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31 * @author Artem Tikhomirov
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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32 * @author TMate Software Ltd.
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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33 */
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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34 public class RevlogStreamWriter {
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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35
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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36
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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37 public static class HeaderWriter {
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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38 private final ByteBuffer header;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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39 private final boolean isInline;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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40 private long offset;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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41 private int length, compressedLength;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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42 private int baseRev, linkRev, p1, p2;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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43 private Nodeid nodeid;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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44
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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45 public HeaderWriter(boolean inline) {
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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46 isInline = inline;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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47 header = ByteBuffer.allocate(REVLOGV1_RECORD_SIZE);
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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48 }
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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49
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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50 public HeaderWriter offset(long offset) {
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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51 this.offset = offset;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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52 return this;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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53 }
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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54
532
688c1ab113bb Introduce explicit reference to base patch in bundle's group element, use it when cloning to fix defect when few revisions list null,null parents
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55 public int baseRevision() {
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56 return baseRev;
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57 }
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58
530
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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59 public HeaderWriter baseRevision(int baseRevision) {
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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60 this.baseRev = baseRevision;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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61 return this;
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62 }
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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63
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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64 public HeaderWriter length(int len, int compressedLen) {
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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65 this.length = len;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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66 this.compressedLength = compressedLen;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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67 return this;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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68 }
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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69
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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70 public HeaderWriter parents(int parent1, int parent2) {
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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71 p1 = parent1;
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72 p2 = parent2;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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73 return this;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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74 }
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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75
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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76 public HeaderWriter linkRevision(int linkRevision) {
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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77 this.linkRev = linkRevision;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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78 return this;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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79 }
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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80
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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81 public HeaderWriter nodeid(Nodeid n) {
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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82 this.nodeid = n;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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83 return this;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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84 }
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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85
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
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86 public void write(OutputStream out) throws IOException {
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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87 header.clear();
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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88 if (offset == 0) {
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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89 int version = 1 /* RevlogNG */;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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90 if (isInline) {
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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91 final int INLINEDATA = 1 << 16; // FIXME extract constant
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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92 version |= INLINEDATA;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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93 }
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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94 header.putInt(version);
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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95 header.putInt(0);
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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96 } else {
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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97 header.putLong(offset << 16);
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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98 }
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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99 header.putInt(compressedLength);
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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100 header.putInt(length);
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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101 header.putInt(baseRev);
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
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102 header.putInt(linkRev);
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
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103 header.putInt(p1);
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
104 header.putInt(p2);
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
105 header.put(nodeid.toByteArray());
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
106 // assume 12 bytes left are zeros
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
107 out.write(header.array());
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
108
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
109 // regardless whether it's inline or separate data,
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
110 // offset field always represent cumulative compressedLength
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
111 // (while offset in the index file with inline==true differs by n*sizeof(header), where n is entry's position in the file)
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
112 offset += compressedLength;
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
113 }
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
114 }
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
115
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
116 public void addRevision(String text, int baseRevision, int linkRevision, int p1, int p2) {
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
117 }
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
118 }