annotate src/org/tmatesoft/hg/core/HgUpdateConfigCommand.java @ 425:48f993aa2f41

FIXMEs: exceptions, javadoc
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 28 Mar 2012 18:39:29 +0200
parents 9c9c442b5f2e
children 31a89587eb04
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1 /*
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2 * Copyright (c) 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.core;
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18
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19 import java.io.File;
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20 import java.io.IOException;
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21 import java.util.ArrayList;
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22 import java.util.LinkedHashMap;
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23 import java.util.List;
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24 import java.util.Map;
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25
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26 import org.tmatesoft.hg.internal.ConfigFile;
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27 import org.tmatesoft.hg.internal.Experimental;
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28 import org.tmatesoft.hg.internal.Internals;
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29 import org.tmatesoft.hg.repo.HgInternals;
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30 import org.tmatesoft.hg.repo.HgInvalidFileException;
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31 import org.tmatesoft.hg.repo.HgRepository;
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32
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33 /**
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34 * WORK IN PROGRESS, DO NOT USE
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35 *
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36 * @author Artem Tikhomirov
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37 * @author TMate Software Ltd.
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38 */
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39 @Experimental(reason="Investigating approaches to alter Hg configuration files")
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40 public final class HgUpdateConfigCommand extends HgAbstractCommand<HgUpdateConfigCommand> {
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41
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42 private final File configFile;
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43
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44 private Map<String,List<String>> toRemove;
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45 private Map<String,Map<String,String>> toSet;
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46
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47 private HgUpdateConfigCommand(File configurationFile) {
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48 configFile = configurationFile;
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49 }
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50
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51 public static HgUpdateConfigCommand forRepository(HgRepository hgRepo) {
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52 // XXX HgRepository to implement SessionContextProvider (with getContext())?
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53 return new HgUpdateConfigCommand(new File(HgInternals.getRepositoryDir(hgRepo), "hgrc"));
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54 }
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55
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56 public static HgUpdateConfigCommand forUser(SessionContext ctx) {
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57 return new HgUpdateConfigCommand(Internals.getUserConfigurationFileToWrite(ctx));
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58 }
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59
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60 public static HgUpdateConfigCommand forInstallation(SessionContext ctx) {
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61 return new HgUpdateConfigCommand(Internals.getInstallationConfigurationFileToWrite(ctx));
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62 }
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63
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64 /**
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65 * Remove a property altogether
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66 * @return <code>this</code> for convenience
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67 */
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68 public HgUpdateConfigCommand remove(String section, String key) {
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69 if (toRemove == null) {
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70 toRemove = new LinkedHashMap<String, List<String>>();
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71 }
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72 List<String> s = toRemove.get(section);
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73 if (s == null) {
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74 toRemove.put(section, s = new ArrayList<String>(5));
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75 }
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76 s.add(key);
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77 if (toSet != null && toSet.containsKey(section)) {
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78 toSet.get(section).remove(key);
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79 }
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80 return this;
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81 }
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82
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83 /**
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84 * Delete single attribute in a multi-valued property
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85 * @return <code>this</code> for convenience
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86 */
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87 public HgUpdateConfigCommand remove(String section, String key, String value) {
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88 throw new UnsupportedOperationException();
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89 }
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90
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91 /**
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92 * Set single-valued properties or update multi-valued with a single value
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93 * @return <code>this</code> for convenience
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94 */
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95 public HgUpdateConfigCommand put(String section, String key, String value) {
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96 if (toSet == null) {
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97 toSet = new LinkedHashMap<String, Map<String,String>>();
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98 }
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99 Map<String,String> s = toSet.get(section);
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100 if (s == null) {
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101 toSet.put(section, s = new LinkedHashMap<String, String>());
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102 }
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103 s.put(key, value);
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104 return this;
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105 }
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106
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107 /**
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108 * Multi-valued properties
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109 * @return <code>this</code> for convenience
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110 */
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111 public HgUpdateConfigCommand add(String section, String key, String value) {
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112 throw new UnsupportedOperationException();
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113 }
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114
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115 public void execute() throws HgException {
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116 try {
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117 ConfigFile cfg = new ConfigFile();
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118 cfg.addLocation(configFile);
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119 if (toRemove != null) {
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120 for (Map.Entry<String,List<String>> s : toRemove.entrySet()) {
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121 for (String e : s.getValue()) {
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122 cfg.putString(s.getKey(), e, null);
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123 }
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124 }
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125 }
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126 if (toSet != null) {
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127 for (Map.Entry<String,Map<String,String>> s : toSet.entrySet()) {
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128 for (Map.Entry<String, String> e : s.getValue().entrySet()) {
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129 cfg.putString(s.getKey(), e.getKey(), e.getValue());
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130 }
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131 }
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132 }
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133 cfg.writeTo(configFile);
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134 } catch (IOException ex) {
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135 throw new HgInvalidFileException("Failed to update configuration file", ex, configFile);
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136 }
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137 }
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138
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139
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140 public static void main(String[] args) throws Exception {
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141 HgUpdateConfigCommand cmd = HgUpdateConfigCommand.forUser(null);
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142 cmd.remove("test1", "sample1");
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143 cmd.put("test2", "sample2", "value2");
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144 cmd.put("ui", "user-name", "Another User <email@domain.com>");
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145 cmd.execute();
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146 }
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147 }