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annotate src/org/tmatesoft/hg/repo/HgBundle.java @ 647:c75297c17867

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Location of repository files as enumeration, use file constants instead of plain names
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 25 Jun 2013 18:53:18 +0200
parents 14dac192aa26
children 12a4f60ea972
rev   line source
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1 /*
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2 * Copyright (c) 2011-2013 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.repo;
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18
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19 import java.io.File;
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20 import java.io.FileInputStream;
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21 import java.io.IOException;
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22 import java.util.ConcurrentModificationException;
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24 import org.tmatesoft.hg.core.HgIOException;
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25 import org.tmatesoft.hg.core.Nodeid;
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26 import org.tmatesoft.hg.core.SessionContext;
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27 import org.tmatesoft.hg.internal.ByteArrayChannel;
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28 import org.tmatesoft.hg.internal.ByteArrayDataAccess;
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29 import org.tmatesoft.hg.internal.Callback;
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30 import org.tmatesoft.hg.internal.DataAccess;
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31 import org.tmatesoft.hg.internal.DataAccessProvider;
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32 import org.tmatesoft.hg.internal.DataSerializer;
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33 import org.tmatesoft.hg.internal.DigestHelper;
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34 import org.tmatesoft.hg.internal.Experimental;
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35 import org.tmatesoft.hg.internal.FileUtils;
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36 import org.tmatesoft.hg.internal.InflaterDataAccess;
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37 import org.tmatesoft.hg.internal.Internals;
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38 import org.tmatesoft.hg.internal.Lifecycle;
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39 import org.tmatesoft.hg.internal.Patch;
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40 import org.tmatesoft.hg.repo.HgChangelog.RawChangeset;
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41 import org.tmatesoft.hg.util.Adaptable;
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42 import org.tmatesoft.hg.util.CancelledException;
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43
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44 /**
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45 * WORK IN PROGRESS
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46 *
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47 * @see http://mercurial.selenic.com/wiki/BundleFormat
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48 *
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49 * @author Artem Tikhomirov
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50 * @author TMate Software Ltd.
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51 */
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52 @Experimental(reason="API is not stable")
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53 public class HgBundle {
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54
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55 private final File bundleFile;
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56 private final DataAccessProvider accessProvider;
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57 private final SessionContext ctx;
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58 private Lifecycle.BasicCallback flowControl;
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59
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60 HgBundle(SessionContext sessionContext, DataAccessProvider dap, File bundle) {
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61 ctx = sessionContext;
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62 accessProvider = dap;
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63 bundleFile = bundle;
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64 }
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65
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66 private DataAccess getDataStream() throws IOException {
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67 DataAccess da = accessProvider.createReader(bundleFile, false);
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68 byte[] signature = new byte[6];
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69 if (da.length() > 6) {
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70 da.readBytes(signature, 0, 6);
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71 if (signature[0] == 'H' && signature[1] == 'G' && signature[2] == '1' && signature[3] == '0') {
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72 if (signature[4] == 'G' && signature[5] == 'Z') {
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73 return new InflaterDataAccess(da, 6, da.length() - 6);
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74 }
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75 if (signature[4] == 'B' && signature[5] == 'Z') {
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76 throw Internals.notImplemented();
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77 }
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78 if (signature[4] != 'U' || signature[5] != 'N') {
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79 throw new HgInvalidStateException(String.format("Bad bundle signature: %s", String.valueOf(signature)));
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80 }
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81 // "...UN", fall-through
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82 } else {
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83 da.reset();
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84 }
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85 }
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86 return da;
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87 }
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88
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89 private int uses = 0;
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90 public HgBundle link() {
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91 uses++;
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92 return this;
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93 }
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94 public void unlink() {
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95 uses--;
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96 if (uses == 0 && bundleFile != null) {
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97 bundleFile.deleteOnExit();
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98 }
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99 }
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100 public boolean inUse() {
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101 return uses > 0;
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102 }
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103
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104 /**
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105 * Get changes recorded in the bundle that are missing from the supplied repository.
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106 * @param hgRepo repository that shall possess base revision for this bundle
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107 * @param inspector callback to get each changeset found
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108 */
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109 public void changes(final HgRepository hgRepo, final HgChangelog.Inspector inspector) throws HgRuntimeException {
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110 Inspector bundleInsp = new Inspector() {
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111 DigestHelper dh = new DigestHelper();
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112 boolean emptyChangelog = true;
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113 private DataAccess prevRevContent;
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114 private int revisionIndex;
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115
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116 public void changelogStart() {
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117 emptyChangelog = true;
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118 revisionIndex = 0;
169
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119 }
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120
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121 public void changelogEnd() {
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122 if (emptyChangelog) {
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123 throw new IllegalStateException("No changelog group in the bundle"); // XXX perhaps, just be silent and/or log?
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124 }
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125 }
169
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126
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127 /*
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128 * Despite that BundleFormat wiki says: "Each Changelog entry patches the result of all previous patches
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129 * (the previous, or parent patch of a given patch p is the patch that has a node equal to p's p1 field)",
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130 * it seems not to hold true. Instead, each entry patches previous one, regardless of whether the one
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131 * before is its parent (i.e. ge.firstParent()) or not.
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132 *
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133 Actual state in the changelog.i
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134 Index Offset Flags Packed Actual Base Rev Link Rev Parent1 Parent2 nodeid
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135 50: 9212 0 209 329 48 50 49 -1 f1db8610da62a3e0beb8d360556ee1fd6eb9885e
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136 51: 9421 0 278 688 48 51 50 -1 9429c7bd1920fab164a9d2b621d38d57bcb49ae0
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137 52: 9699 0 154 179 52 52 50 -1 30bd389788464287cee22ccff54c330a4b715de5
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138 53: 9853 0 133 204 52 53 51 52 a6f39e595b2b54f56304470269a936ead77f5725
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139 54: 9986 0 156 182 54 54 52 -1 fd4f2c98995beb051070630c272a9be87bef617d
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140
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141 Excerpt from bundle (nodeid, p1, p2, cs):
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142 f1db8610da62a3e0beb8d360556ee1fd6eb9885e 26e3eeaa39623de552b45ee1f55c14f36460f220 0000000000000000000000000000000000000000 f1db8610da62a3e0beb8d360556ee1fd6eb9885e; patches:4
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143 9429c7bd1920fab164a9d2b621d38d57bcb49ae0 f1db8610da62a3e0beb8d360556ee1fd6eb9885e 0000000000000000000000000000000000000000 9429c7bd1920fab164a9d2b621d38d57bcb49ae0; patches:3
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144 > 30bd389788464287cee22ccff54c330a4b715de5 f1db8610da62a3e0beb8d360556ee1fd6eb9885e 0000000000000000000000000000000000000000 30bd389788464287cee22ccff54c330a4b715de5; patches:3
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145 a6f39e595b2b54f56304470269a936ead77f5725 9429c7bd1920fab164a9d2b621d38d57bcb49ae0 30bd389788464287cee22ccff54c330a4b715de5 a6f39e595b2b54f56304470269a936ead77f5725; patches:3
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146 fd4f2c98995beb051070630c272a9be87bef617d 30bd389788464287cee22ccff54c330a4b715de5 0000000000000000000000000000000000000000 fd4f2c98995beb051070630c272a9be87bef617d; patches:3
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147
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148 To recreate 30bd..e5, one have to take content of 9429..e0, not its p1 f1db..5e
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149 */
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150 public boolean element(GroupElement ge) throws HgRuntimeException {
169
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151 emptyChangelog = false;
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152 HgChangelog changelog = hgRepo.getChangelog();
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153 try {
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154 if (prevRevContent == null) {
274
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155 if (ge.firstParent().isNull() && ge.secondParent().isNull()) {
169
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156 prevRevContent = new ByteArrayDataAccess(new byte[0]);
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157 } else {
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158 final Nodeid base = ge.firstParent();
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159 if (!changelog.isKnown(base) /*only first parent, that's Bundle contract*/) {
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160 throw new IllegalStateException(String.format("Revision %s needs a parent %s, which is missing in the supplied repo %s", ge.node().shortNotation(), base.shortNotation(), hgRepo.toString()));
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161 }
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162 ByteArrayChannel bac = new ByteArrayChannel();
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163 changelog.rawContent(base, bac); // TODO post-1.0 get DataAccess directly, to avoid
169
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164 // extra byte[] (inside ByteArrayChannel) duplication just for the sake of subsequent ByteArrayDataChannel wrap.
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165 prevRevContent = new ByteArrayDataAccess(bac.toArray());
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166 }
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167 }
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168 //
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169 byte[] csetContent = ge.apply(prevRevContent);
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170 dh = dh.sha1(ge.firstParent(), ge.secondParent(), csetContent); // XXX ge may give me access to byte[] content of nodeid directly, perhaps, I don't need DH to be friend of Nodeid?
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171 if (!ge.node().equalsTo(dh.asBinary())) {
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172 throw new HgInvalidStateException(String.format("Integrity check failed on %s, node: %s", bundleFile, ge.node().shortNotation()));
169
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173 }
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174 ByteArrayDataAccess csetDataAccess = new ByteArrayDataAccess(csetContent);
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175 RawChangeset cs = RawChangeset.parse(csetDataAccess);
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176 inspector.next(revisionIndex++, ge.node(), cs);
170
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177 prevRevContent.done();
169
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178 prevRevContent = csetDataAccess.reset();
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179 } catch (CancelledException ex) {
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180 return false;
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181 } catch (IOException ex) {
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182 throw new HgInvalidFileException("Invalid bundle file", ex, bundleFile); // TODO post-1.0 revisit exception handling
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183 } catch (HgInvalidDataFormatException ex) {
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184 throw new HgInvalidControlFileException("Invalid bundle file", ex, bundleFile);
169
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185 }
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186 return true;
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187 }
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188
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189 public void manifestStart() {}
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190 public void manifestEnd() {}
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191 public void fileStart(String name) {}
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192 public void fileEnd(String name) {}
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193
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194 };
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195 inspectChangelog(bundleInsp);
169
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196 }
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197
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198 // callback to minimize amount of Strings and Nodeids instantiated
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199 @Callback
169
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200 public interface Inspector {
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201 void changelogStart() throws HgRuntimeException;
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202
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203 void changelogEnd() throws HgRuntimeException;
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204
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205 void manifestStart() throws HgRuntimeException;
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206
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207 void manifestEnd() throws HgRuntimeException;
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208
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209 void fileStart(String name) throws HgRuntimeException;
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210
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211 void fileEnd(String name) throws HgRuntimeException;
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212
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213 /**
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214 * XXX desperately need exceptions here
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215 * @param element data element, instance might be reused, don't keep a reference to it or its raw data
169
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216 * @return <code>true</code> to continue
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217 */
628
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218 boolean element(GroupElement element) throws HgRuntimeException;
169
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219 }
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220
423
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221 /**
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222 * @param inspector callback to visit changelog entries
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223 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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224 * @throws IllegalArgumentException if inspector argument is null
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225 */
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226 public void inspectChangelog(Inspector inspector) throws HgRuntimeException {
169
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227 if (inspector == null) {
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228 throw new IllegalArgumentException();
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229 }
512
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230 final Lifecycle lifecycle = lifecycleSetUp(inspector);
295
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231 DataAccess da = null;
169
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232 try {
295
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233 da = getDataStream();
182
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234 internalInspectChangelog(da, inspector);
295
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235 } catch (IOException ex) {
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236 throw new HgInvalidFileException("Bundle.inspectChangelog failed", ex, bundleFile);
37
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237 } finally {
295
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238 if (da != null) {
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239 da.done();
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240 }
512
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241 lifecycleTearDown(lifecycle);
37
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242 }
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243 }
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244
423
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245 /**
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246 * @param inspector callback to visit manifest entries
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247 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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248 * @throws IllegalArgumentException if inspector argument is null
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249 */
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250 public void inspectManifest(Inspector inspector) throws HgRuntimeException {
169
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251 if (inspector == null) {
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252 throw new IllegalArgumentException();
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253 }
512
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254 final Lifecycle lifecycle = lifecycleSetUp(inspector);
295
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255 DataAccess da = null;
36
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256 try {
295
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257 da = getDataStream();
169
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258 if (da.isEmpty()) {
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259 return;
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260 }
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261 skipGroup(da); // changelog
182
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262 internalInspectManifest(da, inspector);
295
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263 } catch (IOException ex) {
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264 throw new HgInvalidFileException("Bundle.inspectManifest failed", ex, bundleFile);
36
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265 } finally {
295
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266 if (da != null) {
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267 da.done();
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268 }
512
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269 lifecycleTearDown(lifecycle);
36
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270 }
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271 }
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272
423
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273 /**
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274 * @param inspector callback to visit file entries
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275 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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276 * @throws IllegalArgumentException if inspector argument is null
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277 */
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278 public void inspectFiles(Inspector inspector) throws HgRuntimeException {
169
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279 if (inspector == null) {
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280 throw new IllegalArgumentException();
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281 }
512
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282 final Lifecycle lifecycle = lifecycleSetUp(inspector);
295
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283 DataAccess da = null;
169
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284 try {
295
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285 da = getDataStream();
182
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286 if (da.isEmpty()) {
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287 return;
169
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288 }
182
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289 skipGroup(da); // changelog
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290 if (da.isEmpty()) {
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291 return;
169
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292 }
182
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293 skipGroup(da); // manifest
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294 internalInspectFiles(da, inspector);
295
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295 } catch (IOException ex) {
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296 throw new HgInvalidFileException("Bundle.inspectFiles failed", ex, bundleFile);
169
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297 } finally {
295
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298 if (da != null) {
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299 da.done();
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300 }
512
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diff changeset
301 lifecycleTearDown(lifecycle);
169
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302 }
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303 }
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304
423
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305 /**
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diff changeset
306 * @param inspector visit complete bundle (changelog, manifest and file entries)
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307 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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308 * @throws IllegalArgumentException if inspector argument is null
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309 */
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diff changeset
310 public void inspectAll(Inspector inspector) throws HgRuntimeException {
169
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diff changeset
311 if (inspector == null) {
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312 throw new IllegalArgumentException();
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diff changeset
313 }
512
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314 final Lifecycle lifecycle = lifecycleSetUp(inspector);
295
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315 DataAccess da = null;
169
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316 try {
295
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diff changeset
317 da = getDataStream();
182
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diff changeset
318 internalInspectChangelog(da, inspector);
513
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diff changeset
319 if (flowControl.isStopped()) {
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diff changeset
320 return;
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diff changeset
321 }
182
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diff changeset
322 internalInspectManifest(da, inspector);
513
a41d955dc360 Issue 39: HgCloneCommand doesn't use CancelSupport/ProgressSupport handlers
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parents: 512
diff changeset
323 if (flowControl.isStopped()) {
a41d955dc360 Issue 39: HgCloneCommand doesn't use CancelSupport/ProgressSupport handlers
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parents: 512
diff changeset
324 return;
a41d955dc360 Issue 39: HgCloneCommand doesn't use CancelSupport/ProgressSupport handlers
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diff changeset
325 }
182
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diff changeset
326 internalInspectFiles(da, inspector);
295
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diff changeset
327 } catch (IOException ex) {
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diff changeset
328 throw new HgInvalidFileException("Bundle.inspectAll failed", ex, bundleFile);
169
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diff changeset
329 } finally {
295
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diff changeset
330 if (da != null) {
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diff changeset
331 da.done();
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diff changeset
332 }
512
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diff changeset
333 lifecycleTearDown(lifecycle);
169
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334 }
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335 }
512
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
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336
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337 // initialize flowControl, check for concurrent usage, starts lifecyle, if any
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338 // return non-null only if inspector is interested in lifecycle events
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339 private Lifecycle lifecycleSetUp(Inspector inspector) throws ConcurrentModificationException {
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340 // Don't need flowControl in case Inspector doesn't implement Lifecycle,
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341 // however is handy not to expect it == null inside internalInspect*
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342 // XXX Once there's need to make this class thread-safe,
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343 // shall move flowControl to thread-local state.
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344 if (flowControl != null) {
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345 throw new ConcurrentModificationException("HgBundle is in use and not thread-safe yet");
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346 }
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347 flowControl = new Lifecycle.BasicCallback();
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348 final Lifecycle lifecycle = Adaptable.Factory.getAdapter(inspector, Lifecycle.class, null);
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349 if (lifecycle != null) {
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350 lifecycle.start(-1, flowControl, flowControl);
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351 }
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352 return lifecycle;
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353 }
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354
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355 private void lifecycleTearDown(Lifecycle lifecycle) {
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356 if (lifecycle != null) {
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357 lifecycle.finish(flowControl);
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358 }
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359 flowControl = null;
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360 }
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361
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6526d8adbc0f Explicit HgRuntimeException to facilitate easy switch from runtime to checked exceptions
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362 private void internalInspectChangelog(DataAccess da, Inspector inspector) throws IOException, HgRuntimeException {
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363 if (da.isEmpty()) {
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364 return;
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365 }
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366 inspector.changelogStart();
513
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367 if (flowControl.isStopped()) {
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368 return;
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369 }
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370 readGroup(da, inspector);
513
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diff changeset
371 if (flowControl.isStopped()) {
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372 return;
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373 }
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374 inspector.changelogEnd();
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375 }
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376
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377 private void internalInspectManifest(DataAccess da, Inspector inspector) throws IOException, HgRuntimeException {
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378 if (da.isEmpty()) {
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379 return;
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380 }
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381 inspector.manifestStart();
513
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diff changeset
382 if (flowControl.isStopped()) {
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383 return;
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384 }
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385 readGroup(da, inspector);
513
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386 if (flowControl.isStopped()) {
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387 return;
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388 }
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389 inspector.manifestEnd();
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390 }
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391
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6526d8adbc0f Explicit HgRuntimeException to facilitate easy switch from runtime to checked exceptions
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392 private void internalInspectFiles(DataAccess da, Inspector inspector) throws IOException, HgRuntimeException {
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393 while (!da.isEmpty()) {
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394 int fnameLen = da.readInt();
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395 if (fnameLen <= 4) {
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396 break; // null chunk, the last one.
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397 }
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398 byte[] fnameBuf = new byte[fnameLen - 4];
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399 da.readBytes(fnameBuf, 0, fnameBuf.length);
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400 String name = new String(fnameBuf);
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401 inspector.fileStart(name);
513
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diff changeset
402 if (flowControl.isStopped()) {
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diff changeset
403 return;
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404 }
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405 readGroup(da, inspector);
513
a41d955dc360 Issue 39: HgCloneCommand doesn't use CancelSupport/ProgressSupport handlers
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diff changeset
406 if (flowControl.isStopped()) {
a41d955dc360 Issue 39: HgCloneCommand doesn't use CancelSupport/ProgressSupport handlers
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diff changeset
407 return;
a41d955dc360 Issue 39: HgCloneCommand doesn't use CancelSupport/ProgressSupport handlers
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diff changeset
408 }
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diff changeset
409 inspector.fileEnd(name);
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410 }
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diff changeset
411 }
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diff changeset
412
628
6526d8adbc0f Explicit HgRuntimeException to facilitate easy switch from runtime to checked exceptions
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diff changeset
413 private static void readGroup(DataAccess da, Inspector inspector) throws IOException, HgRuntimeException {
36
205f9b59b400 Strip parsing logic out from console frontend
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diff changeset
414 int len = da.readInt();
169
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415 boolean good2go = true;
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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diff changeset
416 Nodeid prevNodeid = Nodeid.NULL;
169
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417 while (len > 4 && !da.isEmpty() && good2go) {
36
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418 byte[] nb = new byte[80];
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419 da.readBytes(nb, 0, 80);
169
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diff changeset
420 int dataLength = len - 84 /* length field + 4 nodeids */;
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diff changeset
421 byte[] data = new byte[dataLength];
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diff changeset
422 da.readBytes(data, 0, dataLength);
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diff changeset
423 DataAccess slice = new ByteArrayDataAccess(data); // XXX in fact, may pass a slicing DataAccess.
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424 // Just need to make sure that we seek to proper location afterwards (where next GroupElement starts),
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diff changeset
425 // regardless whether that slice has read it or not.
532
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diff changeset
426 GroupElement ge = new GroupElement(nb, prevNodeid, slice);
169
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diff changeset
427 good2go = inspector.element(ge);
170
71ddbf8603e8 Initial clone: populate given directory from a bundle. Everything but remote server access is there, albeit prototype code style
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diff changeset
428 slice.done(); // BADA doesn't implement done(), but it could (e.g. free array)
71ddbf8603e8 Initial clone: populate given directory from a bundle. Everything but remote server access is there, albeit prototype code style
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diff changeset
429 /// and we'd better tell it we are not going to use it any more. However, it's important to ensure Inspector
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diff changeset
430 // implementations out there do not retain GroupElement.rawData()
532
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diff changeset
431 prevNodeid = ge.node();
36
205f9b59b400 Strip parsing logic out from console frontend
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diff changeset
432 len = da.isEmpty() ? 0 : da.readInt();
205f9b59b400 Strip parsing logic out from console frontend
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433 }
169
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diff changeset
434 // need to skip up to group end if inspector told he don't want to continue with the group,
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diff changeset
435 // because outer code may try to read next group immediately as we return back.
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diff changeset
436 while (len > 4 && !da.isEmpty()) {
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diff changeset
437 da.skip(len - 4 /* length field */);
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diff changeset
438 len = da.isEmpty() ? 0 : da.readInt();
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diff changeset
439 }
36
205f9b59b400 Strip parsing logic out from console frontend
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diff changeset
440 }
205f9b59b400 Strip parsing logic out from console frontend
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diff changeset
441
169
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diff changeset
442 private static void skipGroup(DataAccess da) throws IOException {
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diff changeset
443 int len = da.readInt();
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diff changeset
444 while (len > 4 && !da.isEmpty()) {
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diff changeset
445 da.skip(len - 4); // sizeof(int)
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diff changeset
446 len = da.isEmpty() ? 0 : da.readInt();
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diff changeset
447 }
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diff changeset
448 }
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diff changeset
449
358
fc8bc2f1edbe Clean internal classes from public API
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parents: 357
diff changeset
450 @Experimental(reason="Cumbersome API, rawData and apply with byte[] perhaps need replacement with ByteChannel/ByteBuffer, and better Exceptions. Perhaps, shall split into interface and impl")
169
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diff changeset
451 public static class GroupElement {
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diff changeset
452 private final byte[] header; // byte[80] takes 120 bytes, 4 Nodeids - 192
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diff changeset
453 private final DataAccess dataAccess;
329
694ebabb5cb3 Refactor revlog patch mechanism, towards patch merging
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454 private Patch patches;
532
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455 private final Nodeid deltaBase;
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456
532
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diff changeset
457 GroupElement(byte[] fourNodeids, Nodeid deltaBaseRev, DataAccess rawDataAccess) {
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458 assert fourNodeids != null && fourNodeids.length == 80;
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459 header = fourNodeids;
532
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460 deltaBase = deltaBaseRev;
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461 dataAccess = rawDataAccess;
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462 }
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463
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464 /**
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465 * <b>node</b> field of the group element
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466 * @return node revision, never <code>null</code>
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467 */
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468 public Nodeid node() {
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469 return Nodeid.fromBinary(header, 0);
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470 }
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471
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472 /**
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473 * <b>p1</b> <i>(parent 1)</i> field of the group element
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474 * @return revision of parent 1, never <code>null</code>
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475 */
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476 public Nodeid firstParent() {
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477 return Nodeid.fromBinary(header, 20);
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478 }
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479
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480 /**
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481 * <b>p2</b> <i>(parent 2)</i> field of the group element
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482 * @return revision of parent 2, never <code>null</code>
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483 */
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484 public Nodeid secondParent() {
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485 return Nodeid.fromBinary(header, 40);
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486 }
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487
358
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488 /**
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489 * <b>cs</b> <i>(changeset link)</i> field of the group element
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490 * @return changeset revision, never <code>null</code>
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491 */
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492 public Nodeid cset() {
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493 return Nodeid.fromBinary(header, 60);
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494 }
358
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495
532
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diff changeset
496 /**
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497 * Revision this element keeps patches against. For the patches of the very first revision returns {@link Nodeid#NULL}.
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498 * @return revision of delta base, never <code>null</code>
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499 */
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diff changeset
500 public Nodeid patchBase() {
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501 return deltaBase;
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502 }
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503
358
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504 public byte[] rawDataByteArray() throws IOException { // XXX IOException or HgInvalidFileException?
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505 return rawData().byteArray();
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506 }
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507
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508 public byte[] apply(byte[] baseContent) throws IOException {
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509 return apply(new ByteArrayDataAccess(baseContent));
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510 }
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diff changeset
511
358
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512 /*package-local*/ DataAccess rawData() {
169
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513 return dataAccess;
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514 }
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diff changeset
515
329
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diff changeset
516 /*package-local*/ Patch patch() throws IOException {
169
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517 if (patches == null) {
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518 dataAccess.reset();
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diff changeset
519 patches = new Patch();
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diff changeset
520 patches.read(dataAccess);
169
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521 }
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diff changeset
522 return patches;
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diff changeset
523 }
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diff changeset
524
358
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diff changeset
525 /*package-local*/ byte[] apply(DataAccess baseContent) throws IOException {
329
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526 return patch().apply(baseContent, -1);
169
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527 }
357
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528
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529 public String toString() {
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530 int patchCount;
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diff changeset
531 try {
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532 patchCount = patch().count();
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diff changeset
533 } catch (IOException ex) {
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diff changeset
534 ex.printStackTrace();
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535 patchCount = -1;
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536 }
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diff changeset
537 return String.format("%s %s %s %s; patches:%d\n", node().shortNotation(), firstParent().shortNotation(), secondParent().shortNotation(), cset().shortNotation(), patchCount);
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538 }
36
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diff changeset
539 }
645
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parents: 628
diff changeset
540
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diff changeset
541 @Experimental(reason="Work in progress, not an API")
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diff changeset
542 public class BundleSerializer implements DataSerializer.DataSource {
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diff changeset
543
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diff changeset
544 public void serialize(DataSerializer out) throws HgIOException, HgRuntimeException {
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diff changeset
545 FileInputStream fis = null;
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diff changeset
546 try {
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diff changeset
547 fis = new FileInputStream(HgBundle.this.bundleFile);
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diff changeset
548 byte[] buffer = new byte[8*1024];
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diff changeset
549 int r;
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diff changeset
550 while ((r = fis.read(buffer, 0, buffer.length)) > 0) {
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diff changeset
551 out.write(buffer, 0, r);
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diff changeset
552 }
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diff changeset
553
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diff changeset
554 } catch (IOException ex) {
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diff changeset
555 throw new HgIOException("Failed to serialize bundle", HgBundle.this.bundleFile);
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556 } finally {
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diff changeset
557 new FileUtils(HgBundle.this.ctx.getLog()).closeQuietly(fis, HgBundle.this.bundleFile);
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diff changeset
558 }
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diff changeset
559 }
14dac192aa26 Push: phase2 - upload bundle with changes to remote server
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diff changeset
560
14dac192aa26 Push: phase2 - upload bundle with changes to remote server
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diff changeset
561 public int serializeLength() throws HgRuntimeException {
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diff changeset
562 return Internals.ltoi(HgBundle.this.bundleFile.length());
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diff changeset
563 }
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diff changeset
564 }
36
205f9b59b400 Strip parsing logic out from console frontend
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diff changeset
565 }