Mercurial > hg4j

annotate src/org/tmatesoft/hg/core/HgUpdateConfigCommand.java @ 427:31a89587eb04

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FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 29 Mar 2012 17:14:35 +0200
parents 9c9c442b5f2e
children e31e85cf4d4c
rev   line source
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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.HgRepository;
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31
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32 /**
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33 * WORK IN PROGRESS, DO NOT USE
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34 *
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35 * @author Artem Tikhomirov
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36 * @author TMate Software Ltd.
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37 */
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38 @Experimental(reason="Investigating approaches to alter Hg configuration files")
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39 public final class HgUpdateConfigCommand extends HgAbstractCommand<HgUpdateConfigCommand> {
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40
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41 private final File configFile;
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42
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43 private Map<String,List<String>> toRemove;
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44 private Map<String,Map<String,String>> toSet;
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45
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46 private HgUpdateConfigCommand(File configurationFile) {
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47 configFile = configurationFile;
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48 }
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49
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50 public static HgUpdateConfigCommand forRepository(HgRepository hgRepo) {
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51 // XXX HgRepository to implement SessionContextProvider (with getContext())?
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52 return new HgUpdateConfigCommand(new File(HgInternals.getRepositoryDir(hgRepo), "hgrc"));
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53 }
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54
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55 public static HgUpdateConfigCommand forUser(SessionContext ctx) {
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56 return new HgUpdateConfigCommand(Internals.getUserConfigurationFileToWrite(ctx));
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57 }
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58
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59 public static HgUpdateConfigCommand forInstallation(SessionContext ctx) {
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60 return new HgUpdateConfigCommand(Internals.getInstallationConfigurationFileToWrite(ctx));
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61 }
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62
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63 /**
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64 * Remove a property altogether
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65 * @return <code>this</code> for convenience
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66 */
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67 public HgUpdateConfigCommand remove(String section, String key) {
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68 if (toRemove == null) {
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69 toRemove = new LinkedHashMap<String, List<String>>();
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70 }
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71 List<String> s = toRemove.get(section);
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72 if (s == null) {
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73 toRemove.put(section, s = new ArrayList<String>(5));
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74 }
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75 s.add(key);
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76 if (toSet != null && toSet.containsKey(section)) {
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77 toSet.get(section).remove(key);
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78 }
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79 return this;
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80 }
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81
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82 /**
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83 * Delete single attribute in a multi-valued property
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84 * @return <code>this</code> for convenience
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85 */
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86 public HgUpdateConfigCommand remove(String section, String key, String value) {
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87 throw new UnsupportedOperationException();
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88 }
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89
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90 /**
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91 * Set single-valued properties or update multi-valued with a single value
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92 * @return <code>this</code> for convenience
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93 */
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94 public HgUpdateConfigCommand put(String section, String key, String value) {
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95 if (toSet == null) {
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96 toSet = new LinkedHashMap<String, Map<String,String>>();
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97 }
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98 Map<String,String> s = toSet.get(section);
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99 if (s == null) {
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100 toSet.put(section, s = new LinkedHashMap<String, String>());
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101 }
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102 s.put(key, value);
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103 return this;
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104 }
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105
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106 /**
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107 * Multi-valued properties
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108 * @return <code>this</code> for convenience
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109 */
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110 public HgUpdateConfigCommand add(String section, String key, String value) {
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111 throw new UnsupportedOperationException();
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112 }
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113
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114 /**
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115 * Perform config file update
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116 *
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117 * @throws HgException subclass thereof to indicate specific issue with the command arguments or repository state
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118 */
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119 public void execute() throws HgException {
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120 try {
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121 ConfigFile cfg = new ConfigFile();
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122 cfg.addLocation(configFile);
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123 if (toRemove != null) {
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124 for (Map.Entry<String,List<String>> s : toRemove.entrySet()) {
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125 for (String e : s.getValue()) {
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126 cfg.putString(s.getKey(), e, null);
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127 }
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128 }
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129 }
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130 if (toSet != null) {
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131 for (Map.Entry<String,Map<String,String>> s : toSet.entrySet()) {
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132 for (Map.Entry<String, String> e : s.getValue().entrySet()) {
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133 cfg.putString(s.getKey(), e.getKey(), e.getValue());
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134 }
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135 }
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136 }
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137 cfg.writeTo(configFile);
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138 } catch (IOException ex) {
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139 String m = String.format("Failed to update configuration file %s", configFile);
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140 throw new HgBadArgumentException(m, ex); // TODO [post-1.0] better exception, it's not bad argument case
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141 }
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142 }
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143
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144
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145 public static void main(String[] args) throws Exception {
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146 HgUpdateConfigCommand cmd = HgUpdateConfigCommand.forUser(null);
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147 cmd.remove("test1", "sample1");
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148 cmd.put("test2", "sample2", "value2");
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149 cmd.put("ui", "user-name", "Another User <email@domain.com>");
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150 cmd.execute();
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151 }
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152 }