Mercurial > jhg

annotate src/org/tmatesoft/hg/internal/ConfigFile.java @ 176:a8df7162ec75

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Extracting complete branch using remote between call to detect incoming changes is done. Arguments reorderd in remote repo to better match Hg server ideology, not my mental convenience
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Sat, 02 Apr 2011 03:01:14 +0200
parents 947bf231acbb
children 981f9f50bb6c
rev   line source
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1 /*
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2 * Copyright (c) 2011 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
102
a3a2e5deb320 Updated contact address to support@hg4j.com
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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.internal;
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18
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19 import java.io.BufferedReader;
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20 import java.io.File;
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21 import java.io.FileReader;
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22 import java.io.IOException;
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23 import java.util.ArrayList;
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24 import java.util.Collections;
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25 import java.util.LinkedHashMap;
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26 import java.util.List;
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27 import java.util.Map;
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28
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29 /**
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30 *
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31 * @author Artem Tikhomirov
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32 * @author TMate Software Ltd.
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33 */
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34 public class ConfigFile {
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36 private List<String> sections;
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37 private List<Map<String,String>> content;
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38
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39 ConfigFile() {
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40 }
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42 public void addLocation(File path) {
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43 read(path);
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44 }
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45
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46 public boolean hasSection(String sectionName) {
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47 return sections == null ? false : sections.indexOf(sectionName) == -1;
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48 }
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49
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50 // XXX perhaps, should be moved to subclass HgRepoConfig, as it is not common operation for any config file
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51 public boolean hasEnabledExtension(String extensionName) {
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52 int x = sections != null ? sections.indexOf("extensions") : -1;
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53 if (x == -1) {
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54 return false;
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55 }
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56 String value = content.get(x).get(extensionName);
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57 return value != null && !"!".equals(value);
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58 }
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59
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60 public List<String> getSectionNames() {
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61 return sections == null ? Collections.<String>emptyList() : Collections.unmodifiableList(sections);
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62 }
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64 public Map<String,String> getSection(String sectionName) {
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65 if (sections == null) {
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66 return Collections.emptyMap();
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67 }
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68 int x = sections.indexOf(sectionName);
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69 if (x == -1) {
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70 return Collections.emptyMap();
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71 }
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72 return Collections.unmodifiableMap(content.get(x));
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73 }
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74
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75 public boolean getBoolean(String sectionName, String key, boolean defaultValue) {
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76 String value = getSection(sectionName).get(key);
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77 if (value == null) {
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78 return defaultValue;
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79 }
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80 for (String s : new String[] { "true", "yes", "on", "1" }) {
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81 if (s.equalsIgnoreCase(value)) {
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82 return true;
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83 }
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84 }
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85 return false;
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86 }
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88 public String getString(String sectionName, String key, String defaultValue) {
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89 String value = getSection(sectionName).get(key);
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90 return value == null ? defaultValue : value;
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91 }
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93 // TODO handle %include and %unset directives
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94 // TODO "" and lists
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95 private void read(File f) {
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96 if (f == null || !f.canRead()) {
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97 return;
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98 }
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99 if (sections == null) {
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100 sections = new ArrayList<String>();
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101 content = new ArrayList<Map<String,String>>();
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102 }
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103 try {
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104 BufferedReader br = new BufferedReader(new FileReader(f));
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105 String line;
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106 String sectionName = "";
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107 Map<String,String> section = new LinkedHashMap<String, String>();
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108 while ((line = br.readLine()) != null) {
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109 line = line.trim();
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110 int x;
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111 if ((x = line.indexOf('#')) != -1) {
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112 // do not keep comments in memory, get new, shorter string
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113 line = new String(line.substring(0, x).trim());
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114 }
69
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115 if (line.length() <= 2) { // a=b or [a] are at least of length 3
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116 continue;
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117 }
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118 if (line.charAt(0) == '[' && line.charAt(line.length() - 1) == ']') {
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119 sectionName = line.substring(1, line.length() - 1);
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120 if (sections.indexOf(sectionName) == -1) {
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121 sections.add(sectionName);
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122 content.add(section = new LinkedHashMap<String, String>());
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123 } else {
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124 section = null; // drop cached value
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125 }
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126 } else if ((x = line.indexOf('=')) != -1) {
136
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127 // share char[] of the original string
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128 String key = line.substring(0, x).trim();
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129 String value = line.substring(x+1).trim();
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130 if (section == null) {
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131 int i = sections.indexOf(sectionName);
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132 assert i >= 0;
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133 section = content.get(i);
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134 }
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135 if (sectionName.length() == 0) {
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136 // add fake section only if there are any values
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137 sections.add(sectionName);
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138 content.add(section);
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139 }
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140 section.put(key, value);
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141 }
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142 }
73
0d279bcc4442 Utility for future troubleshooting
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143 br.close();
69
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144 } catch (IOException ex) {
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145 ex.printStackTrace(); // XXX shall outer world care?
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146 }
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147 ((ArrayList<?>) sections).trimToSize();
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148 ((ArrayList<?>) content).trimToSize();
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149 assert sections.size() == content.size();
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150 }
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151 }