Mercurial > jhg

annotate src/org/tmatesoft/hg/repo/HgRemoteRepository.java @ 450:03fd8d079e9c smartgit3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Share PhasesHelper instance among few HgChangesets (mostly affects HgChangesetTreeHandler case)
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 07 Jun 2012 17:06:23 +0200
parents 30922c728341
children bb278ccf9866
rev   line source
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1 /*
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2 * Copyright (c) 2011-2012 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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19 import java.io.File;
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20 import java.io.FileOutputStream;
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21 import java.io.IOException;
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22 import java.io.InputStream;
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23 import java.io.InputStreamReader;
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24 import java.io.OutputStream;
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25 import java.io.StreamTokenizer;
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26 import java.net.HttpURLConnection;
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27 import java.net.MalformedURLException;
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28 import java.net.URL;
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29 import java.net.URLConnection;
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30 import java.security.cert.CertificateException;
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31 import java.security.cert.X509Certificate;
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32 import java.util.ArrayList;
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33 import java.util.Collection;
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34 import java.util.Collections;
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35 import java.util.Iterator;
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36 import java.util.LinkedHashMap;
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37 import java.util.LinkedList;
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38 import java.util.List;
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39 import java.util.Map;
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40 import java.util.prefs.BackingStoreException;
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41 import java.util.prefs.Preferences;
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42 import java.util.zip.InflaterInputStream;
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44 import javax.net.ssl.HttpsURLConnection;
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45 import javax.net.ssl.SSLContext;
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46 import javax.net.ssl.TrustManager;
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47 import javax.net.ssl.X509TrustManager;
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48
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49 import org.tmatesoft.hg.core.HgBadArgumentException;
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50 import org.tmatesoft.hg.core.HgBadStateException;
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51 import org.tmatesoft.hg.core.HgInvalidFileException;
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52 import org.tmatesoft.hg.core.HgRemoteConnectionException;
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53 import org.tmatesoft.hg.core.Nodeid;
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54 import org.tmatesoft.hg.core.SessionContext;
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56 /**
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57 * WORK IN PROGRESS, DO NOT USE
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58 *
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59 * @see http://mercurial.selenic.com/wiki/WireProtocol
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60 *
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61 * @author Artem Tikhomirov
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62 * @author TMate Software Ltd.
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63 */
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64 public class HgRemoteRepository {
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65
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66 private final URL url;
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67 private final SSLContext sslContext;
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68 private final String authInfo;
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69 private final boolean debug;
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70 private HgLookup lookupHelper;
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71 private final SessionContext sessionContext;
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72
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73 HgRemoteRepository(SessionContext ctx, URL url) throws HgBadArgumentException {
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74 if (url == null || ctx == null) {
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75 throw new IllegalArgumentException();
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76 }
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77 this.url = url;
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78 sessionContext = ctx;
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79 Object debugProp = ctx.getProperty("hg4j.remote.debug", false);
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80 debug = debugProp instanceof Boolean ? ((Boolean) debugProp).booleanValue() : Boolean.parseBoolean(String.valueOf(debugProp));
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81 if ("https".equals(url.getProtocol())) {
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82 try {
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83 sslContext = SSLContext.getInstance("SSL");
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84 class TrustEveryone implements X509TrustManager {
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85 public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
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86 if (debug) {
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87 System.out.println("checkClientTrusted:" + authType);
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88 }
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89 }
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90 public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
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91 if (debug) {
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92 System.out.println("checkServerTrusted:" + authType);
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93 }
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94 }
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95 public X509Certificate[] getAcceptedIssuers() {
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96 return new X509Certificate[0];
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97 }
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98 };
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99 sslContext.init(null, new TrustManager[] { new TrustEveryone() }, null);
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100 } catch (Exception ex) {
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101 throw new HgBadArgumentException("Can't initialize secure connection", ex);
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102 }
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103 } else {
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104 sslContext = null;
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105 }
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106 if (url.getUserInfo() != null) {
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107 String ai = null;
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108 try {
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109 // Hack to get Base64-encoded credentials
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110 Preferences tempNode = Preferences.userRoot().node("xxx");
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111 tempNode.putByteArray("xxx", url.getUserInfo().getBytes());
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112 ai = tempNode.get("xxx", null);
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113 tempNode.removeNode();
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114 } catch (BackingStoreException ex) {
357
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115 sessionContext.getLog().info(getClass(), ex, null);
176
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116 // IGNORE
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117 }
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118 authInfo = ai;
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119 } else {
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120 authInfo = null;
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121 }
171
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122 }
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123
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124 public boolean isInvalid() throws HgRemoteConnectionException {
181
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125 // say hello to server, check response
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126 if (Boolean.FALSE.booleanValue()) {
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127 throw HgRepository.notImplemented();
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128 }
383
994b5813a925 Few comments
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129 return false; // FIXME implement remote repository hello/check
181
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130 }
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131
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132 /**
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133 * @return human-readable address of the server, without user credentials or any other security information
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134 */
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135 public String getLocation() {
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136 if (url.getUserInfo() == null) {
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137 return url.toExternalForm();
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138 }
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139 if (url.getPort() != -1) {
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140 return String.format("%s://%s:%d%s", url.getProtocol(), url.getHost(), url.getPort(), url.getPath());
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141 } else {
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142 return String.format("%s://%s%s", url.getProtocol(), url.getHost(), url.getPath());
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143 }
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144 }
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145
215
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146 public List<Nodeid> heads() throws HgRemoteConnectionException {
178
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147 try {
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148 URL u = new URL(url, url.getPath() + "?cmd=heads");
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149 HttpURLConnection c = setupConnection(u.openConnection());
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150 c.connect();
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151 if (debug) {
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152 dumpResponseHeader(u, c);
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153 }
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154 InputStreamReader is = new InputStreamReader(c.getInputStream(), "US-ASCII");
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155 StreamTokenizer st = new StreamTokenizer(is);
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156 st.ordinaryChars('0', '9');
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157 st.wordChars('0', '9');
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158 st.eolIsSignificant(false);
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159 LinkedList<Nodeid> parseResult = new LinkedList<Nodeid>();
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160 while (st.nextToken() != StreamTokenizer.TT_EOF) {
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161 parseResult.add(Nodeid.fromAscii(st.sval));
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162 }
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163 return parseResult;
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164 } catch (MalformedURLException ex) {
215
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165 throw new HgRemoteConnectionException("Bad URL", ex).setRemoteCommand("heads").setServerInfo(getLocation());
178
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166 } catch (IOException ex) {
215
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167 throw new HgRemoteConnectionException("Communication failure", ex).setRemoteCommand("heads").setServerInfo(getLocation());
178
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168 }
171
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169 }
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170
215
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171 public List<Nodeid> between(Nodeid tip, Nodeid base) throws HgRemoteConnectionException {
177
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172 Range r = new Range(base, tip);
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173 // XXX shall handle errors like no range key in the returned map, not sure how.
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174 return between(Collections.singletonList(r)).get(r);
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175 }
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176
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177 /**
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178 * @param ranges
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179 * @return map, where keys are input instances, values are corresponding server reply
215
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180 * @throws HgRemoteConnectionException
177
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181 */
215
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182 public Map<Range, List<Nodeid>> between(Collection<Range> ranges) throws HgRemoteConnectionException {
177
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183 if (ranges.isEmpty()) {
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184 return Collections.emptyMap();
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185 }
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186 // if fact, shall do other way round, this method shall send
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187 LinkedHashMap<Range, List<Nodeid>> rv = new LinkedHashMap<HgRemoteRepository.Range, List<Nodeid>>(ranges.size() * 4 / 3);
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188 StringBuilder sb = new StringBuilder(20 + ranges.size() * 82);
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189 sb.append("pairs=");
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190 for (Range r : ranges) {
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191 sb.append(r.end.toString());
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192 sb.append('-');
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193 sb.append(r.start.toString());
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194 sb.append('+');
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195 }
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diff changeset
196 if (sb.charAt(sb.length() - 1) == '+') {
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197 // strip last space
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198 sb.setLength(sb.length() - 1);
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199 }
176
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diff changeset
200 try {
177
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201 boolean usePOST = ranges.size() > 3;
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202 URL u = new URL(url, url.getPath() + "?cmd=between" + (usePOST ? "" : '&' + sb.toString()));
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203 HttpURLConnection c = setupConnection(u.openConnection());
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204 if (usePOST) {
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205 c.setRequestMethod("POST");
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206 c.setRequestProperty("Content-Length", String.valueOf(sb.length()/*nodeids are ASCII, bytes == characters */));
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207 c.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
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208 c.setDoOutput(true);
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209 c.connect();
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diff changeset
210 OutputStream os = c.getOutputStream();
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diff changeset
211 os.write(sb.toString().getBytes());
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212 os.flush();
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diff changeset
213 os.close();
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diff changeset
214 } else {
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diff changeset
215 c.connect();
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diff changeset
216 }
178
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diff changeset
217 if (debug) {
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diff changeset
218 System.out.printf("%d ranges, method:%s \n", ranges.size(), c.getRequestMethod());
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diff changeset
219 dumpResponseHeader(u, c);
176
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220 }
177
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diff changeset
221 InputStreamReader is = new InputStreamReader(c.getInputStream(), "US-ASCII");
176
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diff changeset
222 StreamTokenizer st = new StreamTokenizer(is);
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diff changeset
223 st.ordinaryChars('0', '9');
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diff changeset
224 st.wordChars('0', '9');
177
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225 st.eolIsSignificant(true);
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diff changeset
226 Iterator<Range> rangeItr = ranges.iterator();
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diff changeset
227 LinkedList<Nodeid> currRangeList = null;
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diff changeset
228 Range currRange = null;
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diff changeset
229 boolean possiblyEmptyNextLine = true;
176
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diff changeset
230 while (st.nextToken() != StreamTokenizer.TT_EOF) {
177
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diff changeset
231 if (st.ttype == StreamTokenizer.TT_EOL) {
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diff changeset
232 if (possiblyEmptyNextLine) {
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diff changeset
233 // newline follows newline;
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diff changeset
234 assert currRange == null;
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diff changeset
235 assert currRangeList == null;
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diff changeset
236 if (!rangeItr.hasNext()) {
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diff changeset
237 throw new HgBadStateException();
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diff changeset
238 }
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diff changeset
239 rv.put(rangeItr.next(), Collections.<Nodeid>emptyList());
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diff changeset
240 } else {
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diff changeset
241 if (currRange == null || currRangeList == null) {
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diff changeset
242 throw new HgBadStateException();
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243 }
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diff changeset
244 // indicate next range value is needed
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diff changeset
245 currRange = null;
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diff changeset
246 currRangeList = null;
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diff changeset
247 possiblyEmptyNextLine = true;
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248 }
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diff changeset
249 } else {
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diff changeset
250 possiblyEmptyNextLine = false;
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diff changeset
251 if (currRange == null) {
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diff changeset
252 if (!rangeItr.hasNext()) {
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diff changeset
253 throw new HgBadStateException();
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diff changeset
254 }
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diff changeset
255 currRange = rangeItr.next();
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diff changeset
256 currRangeList = new LinkedList<Nodeid>();
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diff changeset
257 rv.put(currRange, currRangeList);
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diff changeset
258 }
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diff changeset
259 Nodeid nid = Nodeid.fromAscii(st.sval);
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diff changeset
260 currRangeList.addLast(nid);
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diff changeset
261 }
176
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262 }
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diff changeset
263 is.close();
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diff changeset
264 return rv;
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diff changeset
265 } catch (MalformedURLException ex) {
215
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
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diff changeset
266 throw new HgRemoteConnectionException("Bad URL", ex).setRemoteCommand("between").setServerInfo(getLocation());
176
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diff changeset
267 } catch (IOException ex) {
215
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
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parents: 210
diff changeset
268 throw new HgRemoteConnectionException("Communication failure", ex).setRemoteCommand("between").setServerInfo(getLocation());
176
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diff changeset
269 }
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diff changeset
270 }
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diff changeset
271
215
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diff changeset
272 public List<RemoteBranch> branches(List<Nodeid> nodes) throws HgRemoteConnectionException {
178
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diff changeset
273 StringBuilder sb = new StringBuilder(20 + nodes.size() * 41);
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diff changeset
274 sb.append("nodes=");
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diff changeset
275 for (Nodeid n : nodes) {
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diff changeset
276 sb.append(n.toString());
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diff changeset
277 sb.append('+');
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diff changeset
278 }
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diff changeset
279 if (sb.charAt(sb.length() - 1) == '+') {
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diff changeset
280 // strip last space
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diff changeset
281 sb.setLength(sb.length() - 1);
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diff changeset
282 }
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diff changeset
283 try {
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diff changeset
284 URL u = new URL(url, url.getPath() + "?cmd=branches&" + sb.toString());
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diff changeset
285 HttpURLConnection c = setupConnection(u.openConnection());
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diff changeset
286 c.connect();
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diff changeset
287 if (debug) {
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diff changeset
288 dumpResponseHeader(u, c);
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diff changeset
289 }
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diff changeset
290 InputStreamReader is = new InputStreamReader(c.getInputStream(), "US-ASCII");
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diff changeset
291 StreamTokenizer st = new StreamTokenizer(is);
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diff changeset
292 st.ordinaryChars('0', '9');
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diff changeset
293 st.wordChars('0', '9');
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diff changeset
294 st.eolIsSignificant(false);
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diff changeset
295 ArrayList<Nodeid> parseResult = new ArrayList<Nodeid>(nodes.size() * 4);
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diff changeset
296 while (st.nextToken() != StreamTokenizer.TT_EOF) {
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diff changeset
297 parseResult.add(Nodeid.fromAscii(st.sval));
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diff changeset
298 }
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diff changeset
299 if (parseResult.size() != nodes.size() * 4) {
215
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diff changeset
300 throw new HgRemoteConnectionException(String.format("Bad number of nodeids in result (shall be factor 4), expected %d, got %d", nodes.size()*4, parseResult.size()));
178
62665d8f0686 Complete logic to discover all branches missing locally. Most of wire protocol in HgRemoteRepository
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diff changeset
301 }
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diff changeset
302 ArrayList<RemoteBranch> rv = new ArrayList<RemoteBranch>(nodes.size());
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diff changeset
303 for (int i = 0; i < nodes.size(); i++) {
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diff changeset
304 RemoteBranch rb = new RemoteBranch(parseResult.get(i*4), parseResult.get(i*4 + 1), parseResult.get(i*4 + 2), parseResult.get(i*4 + 3));
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diff changeset
305 rv.add(rb);
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diff changeset
306 }
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diff changeset
307 return rv;
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diff changeset
308 } catch (MalformedURLException ex) {
215
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
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diff changeset
309 throw new HgRemoteConnectionException("Bad URL", ex).setRemoteCommand("branches").setServerInfo(getLocation());
178
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diff changeset
310 } catch (IOException ex) {
215
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diff changeset
311 throw new HgRemoteConnectionException("Communication failure", ex).setRemoteCommand("branches").setServerInfo(getLocation());
178
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diff changeset
312 }
171
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 170
diff changeset
313 }
170
71ddbf8603e8 Initial clone: populate given directory from a bundle. Everything but remote server access is there, albeit prototype code style
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
314
186
44a34baabea0 Clone refactored into a command. HgBundle needs means to control its lifecycle, to be deleted when no longer needed
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parents: 184
diff changeset
315 /*
202
706bcc7cfee4 Basic test for HgIncomingCommand. Fix RepositoryComparator for cases when whole repository is unknown. Respect freshly initialized (empty) repositories in general.
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parents: 190
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316 * XXX need to describe behavior when roots arg is empty; our RepositoryComparator code currently returns empty lists when
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317 * no common elements found, which in turn means we need to query changes starting with NULL nodeid.
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318 *
186
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319 * WireProtocol wiki: roots = a list of the latest nodes on every service side changeset branch that both the client and server know about.
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320 *
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321 * Perhaps, shall be named 'changegroup'
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322
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323 * Changegroup:
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324 * http://mercurial.selenic.com/wiki/Merge
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325 * http://mercurial.selenic.com/wiki/WireProtocol
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326 *
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327 * according to latter, bundleformat data is sent through zlib
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328 * (there's no header like HG10?? with the server output, though,
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329 * as one may expect according to http://mercurial.selenic.com/wiki/BundleFormat)
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330 */
295
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331 public HgBundle getChanges(List<Nodeid> roots) throws HgRemoteConnectionException, HgInvalidFileException {
202
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332 List<Nodeid> _roots = roots.isEmpty() ? Collections.singletonList(Nodeid.NULL) : roots;
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333 StringBuilder sb = new StringBuilder(20 + _roots.size() * 41);
179
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334 sb.append("roots=");
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335 for (Nodeid n : _roots) {
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336 sb.append(n.toString());
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337 sb.append('+');
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338 }
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339 if (sb.charAt(sb.length() - 1) == '+') {
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340 // strip last space
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341 sb.setLength(sb.length() - 1);
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342 }
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343 try {
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344 URL u = new URL(url, url.getPath() + "?cmd=changegroup&" + sb.toString());
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345 HttpURLConnection c = setupConnection(u.openConnection());
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346 c.connect();
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347 if (debug) {
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348 dumpResponseHeader(u, c);
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349 }
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350 File tf = writeBundle(c.getInputStream(), false, "HG10GZ" /*didn't see any other that zip*/);
190
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351 if (debug) {
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352 System.out.printf("Wrote bundle %s for roots %s\n", tf, sb);
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353 }
186
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354 return getLookupHelper().loadBundle(tf);
215
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355 } catch (MalformedURLException ex) { // XXX in fact, this exception might be better to be re-thrown as RuntimeEx,
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356 // as there's little user can do about this issue (URLs are constructed by our code)
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357 throw new HgRemoteConnectionException("Bad URL", ex).setRemoteCommand("changegroup").setServerInfo(getLocation());
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358 } catch (IOException ex) {
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359 throw new HgRemoteConnectionException("Communication failure", ex).setRemoteCommand("changegroup").setServerInfo(getLocation());
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360 }
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361 }
186
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362
203
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363 @Override
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364 public String toString() {
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365 return getClass().getSimpleName() + '[' + getLocation() + ']';
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366 }
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367
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368 private HgLookup getLookupHelper() {
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369 if (lookupHelper == null) {
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370 lookupHelper = new HgLookup(sessionContext);
186
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371 }
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372 return lookupHelper;
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373 }
176
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374
177
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375 private HttpURLConnection setupConnection(URLConnection urlConnection) {
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376 urlConnection.setRequestProperty("User-Agent", "hg4j/0.5.0");
176
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377 urlConnection.addRequestProperty("Accept", "application/mercurial-0.1");
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378 if (authInfo != null) {
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379 urlConnection.addRequestProperty("Authorization", "Basic " + authInfo);
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380 }
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381 if (sslContext != null) {
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382 ((HttpsURLConnection) urlConnection).setSSLSocketFactory(sslContext.getSocketFactory());
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383 }
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384 return (HttpURLConnection) urlConnection;
176
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385 }
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386
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387 private void dumpResponseHeader(URL u, HttpURLConnection c) {
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388 System.out.printf("Query (%d bytes):%s\n", u.getQuery().length(), u.getQuery());
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389 System.out.println("Response headers:");
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390 final Map<String, List<String>> headerFields = c.getHeaderFields();
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391 for (String s : headerFields.keySet()) {
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392 System.out.printf("%s: %s\n", s, c.getHeaderField(s));
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393 }
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394 }
179
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395
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396 private static File writeBundle(InputStream is, boolean decompress, String header) throws IOException {
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397 InputStream zipStream = decompress ? new InflaterInputStream(is) : is;
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398 File tf = File.createTempFile("hg-bundle-", null);
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399 FileOutputStream fos = new FileOutputStream(tf);
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400 fos.write(header.getBytes());
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401 int r;
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402 byte[] buf = new byte[8*1024];
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403 while ((r = zipStream.read(buf)) != -1) {
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404 fos.write(buf, 0, r);
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405 }
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406 fos.close();
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407 zipStream.close();
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408 return tf;
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409 }
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410
178
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411
176
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412 public static final class Range {
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413 /**
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414 * Root of the range, earlier revision
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415 */
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416 public final Nodeid start;
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417 /**
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418 * Head of the range, later revision.
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419 */
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420 public final Nodeid end;
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421
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422 /**
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423 * @param from - root/base revision
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424 * @param to - head/tip revision
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425 */
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426 public Range(Nodeid from, Nodeid to) {
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427 start = from;
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428 end = to;
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429 }
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430 }
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ec1820f64d2b Complete incoming cmdline client, with both lite (revisions) and complete (full changeset) information dump
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431
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432 public static final class RemoteBranch {
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433 public final Nodeid head, root, p1, p2;
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434
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435 public RemoteBranch(Nodeid h, Nodeid r, Nodeid parent1, Nodeid parent2) {
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436 head = h;
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437 root = r;
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438 p1 = parent1;
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439 p2 = parent2;
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440 }
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441
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442 @Override
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443 public boolean equals(Object obj) {
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444 if (this == obj) {
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445 return true;
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446 }
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447 if (false == obj instanceof RemoteBranch) {
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448 return false;
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449 }
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450 RemoteBranch o = (RemoteBranch) obj;
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9fb50c04f03c Use Nodeid.isNull check instead of NULL.equals
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451 // in fact, p1 and p2 are not supposed to be null, ever (at least for RemoteBranch created from server output)
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452 return head.equals(o.head) && root.equals(o.root) && (p1 == null && o.p1 == null || p1.equals(o.p1)) && (p2 == null && o.p2 == null || p2.equals(o.p2));
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453 }
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454 }
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455 }