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annotate src/org/tmatesoft/hg/util/Path.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 1a7a9a20e1f9
children 1ec6b327a6ac
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
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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.util;
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18
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19 /**
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20 * Identify repository files (not String nor io.File). Convenient for pattern matching. Memory-friendly.
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21 *
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22 * @author Artem Tikhomirov
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23 * @author TMate Software Ltd.
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24 */
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25 public final class Path implements CharSequence, Comparable<Path>/*Cloneable? - although clone for paths make no sense*/{
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26 // private String[] segments;
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27 // private int flags; // dir, unparsed
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28 private String path;
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29
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30 /*package-local*/Path(String p) {
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31 path = p;
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32 }
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33
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34 /**
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35 * Check if this is directory's path.
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36 * Note, this method doesn't perform any file system operation.
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37 *
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38 * @return true when this path points to a directory
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39 */
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40 public boolean isDirectory() {
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41 // XXX simple logic for now. Later we may decide to have an explicit factory method to create directory paths
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42 return path.charAt(path.length() - 1) == '/';
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43 }
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44
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45 public int length() {
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46 return path.length();
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47 }
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48
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49 public char charAt(int index) {
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50 return path.charAt(index);
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51 }
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52
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53 public CharSequence subSequence(int start, int end) {
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54 // new Path if start-end matches boundaries of any subpath
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55 return path.substring(start, end);
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56 }
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57
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58 @Override
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59 public String toString() {
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60 return path; // CharSequence demands toString() impl
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61 }
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63 public int compareTo(Path o) {
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64 return path.compareTo(o.path);
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65 }
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66
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67 @Override
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68 public boolean equals(Object obj) {
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69 if (obj != null && getClass() == obj.getClass()) {
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70 return this == obj || path.equals(((Path) obj).path);
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71 }
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72 return false;
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73 }
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74 @Override
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75 public int hashCode() {
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76 return path.hashCode();
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77 }
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79 public static Path create(String path) {
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80 if (path == null) {
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81 throw new IllegalArgumentException();
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82 }
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83 if (path.indexOf('\\') != -1) {
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84 throw new IllegalArgumentException();
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85 }
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86 Path rv = new Path(path);
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87 return rv;
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88 }
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90 /**
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91 * Path filter.
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92 */
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93 public interface Matcher {
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94 boolean accept(Path path);
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95 }
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97 /**
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98 * Factory for paths
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99 */
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100 public interface Source {
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101 Path path(String p);
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102 }
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103
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104 /**
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105 * Straightforward {@link Source} implementation that creates new Path instance for each supplied string
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106 */
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107 public static class SimpleSource implements Source {
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108 private final PathRewrite normalizer;
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109
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110 public SimpleSource(PathRewrite pathRewrite) {
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111 if (pathRewrite == null) {
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112 throw new IllegalArgumentException();
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113 }
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114 normalizer = pathRewrite;
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115 }
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116
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117 public Path path(String p) {
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118 return Path.create(normalizer.rewrite(p));
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119 }
64
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120 }
19e9e220bf68 Convenient commands constitute hi-level API. org.tmatesoft namespace, GPL2 statement
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121 }