Mercurial > jhg

annotate cmdline/org/tmatesoft/hg/console/Options.java @ 338:3cfa4d908fc9

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Add options to control DataAccessProvider, allow to turn off use of file memory mapping in particular to solve potential sharing violation (os file handle gets released on MappedByteByffer being GC'd, not on FileChannel.close())
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 15 Nov 2011 04:47:03 +0100
parents 45dc79e545f5
children
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.console;
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18
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19 import java.util.Collections;
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20 import java.util.HashMap;
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21 import java.util.LinkedList;
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22 import java.util.List;
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23 import java.util.Map;
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24 import java.util.Set;
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25 import java.util.TreeSet;
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26
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27 import org.tmatesoft.hg.repo.HgLookup;
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28 import org.tmatesoft.hg.repo.HgRepository;
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29
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30 /**
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31 * Parse command-line options. Primitive implementation that recognizes options with 0 or 1 argument.
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32 *
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33 * @author Artem Tikhomirov
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34 * @author TMate Software Ltd.
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35 */
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36 class Options {
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37
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38 public final Map<String,List<String>> opt2values = new HashMap<String, List<String>>();
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39
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40 public boolean getBoolean(String... aliases) {
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41 return getBoolean(false, aliases);
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42 }
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43
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44 public boolean getBoolean(boolean def, String... aliases) {
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45 for (String s : aliases) {
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46 if (opt2values.containsKey(s)) {
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47 return true;
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48 }
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49 }
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50 return def;
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51 }
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52
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53 public String getSingle(String... aliases) {
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54 String rv = null;
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55 for (String s : aliases) {
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56 List<String> values = opt2values.get(s);
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57 if (values != null && values.size() > 0) {
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58 rv = values.get(values.size() - 1); // take last one, most recent
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59 }
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60 }
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61 return rv;
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62 }
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64 public int getSingleInt(int def, String... aliases) {
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65 String r = getSingle(aliases);
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66 if (r == null) {
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67 return def;
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68 }
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69 return Integer.parseInt(r);
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70 }
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71
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72 public List<String> getList(String... aliases) {
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73 LinkedList<String> rv = new LinkedList<String>();
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74 for (String s : aliases) {
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75 List<String> values = opt2values.get(s);
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76 if (values != null) {
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77 rv.addAll(values);
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78 }
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79 }
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80 return rv;
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81 }
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83 public HgRepository findRepository() throws Exception {
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84 String repoLocation = getSingle("-R", "--repository");
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85 if (repoLocation != null) {
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86 return new HgLookup().detect(repoLocation);
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87 }
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88 return new HgLookup().detectFromWorkingDir();
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89 }
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91
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92 public static Options parse(String[] commandLineArgs, Set<String> flagOptions) {
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93 Options rv = new Options();
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94 List<String> values = new LinkedList<String>();
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95 rv.opt2values.put("", values); // values with no options
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96 for (String arg : commandLineArgs) {
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97 if (arg.charAt(0) == '-') {
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98 // option
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99 if (arg.length() == 1) {
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100 throw new IllegalArgumentException("Bad option: -");
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101 }
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102 if (flagOptions.contains(arg)) {
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103 rv.opt2values.put(arg, Collections.<String>emptyList());
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104 values = rv.opt2values.get("");
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105 } else {
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106 values = rv.opt2values.get(arg);
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107 if (values == null) {
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108 rv.opt2values.put(arg, values = new LinkedList<String>());
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109 }
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110 }
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111 // next value, if any, gets into the values list for arg option.
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112 } else {
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113 values.add(arg);
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114 values = rv.opt2values.get("");
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115 }
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116 }
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117 return rv;
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118 }
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119
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120 public static Set<String> asSet(String... ss) {
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121 TreeSet<String> rv = new TreeSet<String>();
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122 for (String s : ss) {
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123 rv.add(s);
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124 }
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125 return rv;
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126 }
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127 }