Mercurial > silverbladetech
annotate MetroWpf/MetroWpf.Framework/Extensions/DirectoryInfoExtensions.cs @ 81:4ea16a799a03
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author | Steven Hollidge <stevenhollidge@hotmail.com> |
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date | Mon, 23 Apr 2012 23:20:01 +0100 |
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rev | line source |
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1 using System; |
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2 using System.Collections.Generic; |
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3 using System.IO; |
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4 using System.Linq; |
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5 |
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6 namespace MetroWpf |
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7 { |
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8 /// <summary> |
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9 /// Extension methods for the DirectoryInfo class |
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10 /// </summary> |
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11 public static class DirectoryInfoExtensions |
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12 { |
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13 #region · Extensions · |
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14 |
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15 /// <summary> |
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16 /// Gets all files in the directory matching one of the several (!) supplied patterns (instead of just one in the regular implementation). |
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17 /// </summary> |
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18 /// <param name="directory">The directory.</param> |
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19 /// <param name="patterns">The patterns.</param> |
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20 /// <returns>The matching files</returns> |
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21 /// <remarks>This methods is quite perfect to be used in conjunction with the newly created FileInfo-Array extension methods.</remarks> |
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22 /// <example> |
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23 /// <code> |
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24 /// var files = directory.GetFiles("*.txt", "*.xml"); |
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25 /// </code></example> |
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26 public static FileInfo[] GetFiles(this DirectoryInfo directory, params string[] patterns) |
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27 { |
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28 var files = new List<FileInfo>(); |
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29 |
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30 foreach (var pattern in patterns) |
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31 { |
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32 files.AddRange(directory.GetFiles(pattern)); |
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33 } |
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34 |
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35 return files.ToArray(); |
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36 } |
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37 |
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38 /// <summary> |
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39 /// Searches the provided directory recursively and returns the first file matching the provided pattern. |
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40 /// </summary> |
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41 /// <param name="directory">The directory.</param> |
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42 /// <param name="pattern">The pattern.</param> |
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43 /// <returns>The found file</returns> |
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44 /// <example> |
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45 /// <code> |
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46 /// var directory = new DirectoryInfo(@"c:\"); |
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47 /// var file = directory.FindFileRecursive("win.ini"); |
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48 /// </code></example> |
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49 public static FileInfo FindFileRecursive(this DirectoryInfo directory, string pattern) |
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50 { |
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51 var files = directory.GetFiles(pattern); |
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52 |
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53 if (files.Length > 0) |
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54 { |
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55 return files[0]; |
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56 } |
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57 |
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58 foreach (var subDirectory in directory.GetDirectories()) |
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59 { |
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60 var foundFile = subDirectory.FindFileRecursive(pattern); |
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61 |
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62 if (foundFile != null) |
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63 { |
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64 return foundFile; |
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65 } |
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66 } |
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67 |
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68 return null; |
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69 } |
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70 |
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71 /// <summary> |
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72 /// Searches the provided directory recursively and returns the first file matching to the provided predicate. |
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73 /// </summary> |
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74 /// <param name="directory">The directory.</param> |
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75 /// <param name="predicate">The predicate.</param> |
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76 /// <returns>The found file</returns> |
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77 /// <example> |
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78 /// <code> |
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79 /// var directory = new DirectoryInfo(@"c:\"); |
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80 /// var file = directory.FindFileRecursive(f => f.Extension == ".ini"); |
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81 /// </code></example> |
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82 public static FileInfo FindFileRecursive(this DirectoryInfo directory, Func<FileInfo, bool> predicate) |
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83 { |
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84 foreach (var file in directory.GetFiles()) |
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85 { |
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86 if (predicate(file)) |
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87 { |
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88 return file; |
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89 } |
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90 } |
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91 |
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92 foreach (var subDirectory in directory.GetDirectories()) |
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93 { |
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94 var foundFile = subDirectory.FindFileRecursive(predicate); |
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95 |
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96 if (foundFile != null) |
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97 { |
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98 return foundFile; |
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99 } |
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100 } |
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101 |
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102 return null; |
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103 } |
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104 |
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105 /// <summary> |
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106 /// Searches the provided directory recursively and returns the all files matching the provided pattern. |
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107 /// </summary> |
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108 /// <param name="directory">The directory.</param> |
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109 /// <param name="pattern">The pattern.</param> |
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110 /// <remarks>This methods is quite perfect to be used in conjunction with the newly created FileInfo-Array extension methods.</remarks> |
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111 /// <returns>The found files</returns> |
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112 /// <example> |
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113 /// <code> |
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114 /// var directory = new DirectoryInfo(@"c:\"); |
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115 /// var files = directory.FindFilesRecursive("*.ini"); |
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116 /// </code></example> |
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117 public static FileInfo[] FindFilesRecursive(this DirectoryInfo directory, string pattern) |
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118 { |
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119 var foundFiles = new List<FileInfo>(); |
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120 |
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121 FindFilesRecursive(directory, pattern, foundFiles); |
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122 |
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123 return foundFiles.ToArray(); |
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124 } |
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125 |
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126 private static void FindFilesRecursive(DirectoryInfo directory, string pattern, List<FileInfo> foundFiles) |
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127 { |
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128 foundFiles.AddRange(directory.GetFiles(pattern)); |
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129 |
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130 directory.GetDirectories().ForEach(d => FindFilesRecursive(d, pattern, foundFiles)); |
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131 } |
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132 |
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133 /// <summary> |
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134 /// Searches the provided directory recursively and returns the all files matching to the provided predicate. |
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135 /// </summary> |
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136 /// <param name="directory">The directory.</param> |
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137 /// <param name="predicate">The predicate.</param> |
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138 /// <returns>The found files</returns> |
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139 /// <remarks>This methods is quite perfect to be used in conjunction with the newly created FileInfo-Array extension methods.</remarks> |
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140 /// <example> |
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141 /// <code> |
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142 /// var directory = new DirectoryInfo(@"c:\"); |
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143 /// var files = directory.FindFilesRecursive(f => f.Extension == ".ini"); |
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144 /// </code></example> |
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145 public static FileInfo[] FindFilesRecursive(this DirectoryInfo directory, Func<FileInfo, bool> predicate) |
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146 { |
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147 var foundFiles = new List<FileInfo>(); |
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148 |
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149 FindFilesRecursive(directory, predicate, foundFiles); |
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150 |
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151 return foundFiles.ToArray(); |
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152 } |
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153 |
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154 private static void FindFilesRecursive(DirectoryInfo directory, Func<FileInfo, bool> predicate, List<FileInfo> foundFiles) |
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155 { |
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156 foundFiles.AddRange(directory.GetFiles().Where(predicate)); |
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157 |
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158 directory.GetDirectories().ForEach(d => FindFilesRecursive(d, predicate, foundFiles)); |
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159 } |
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160 |
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161 #endregion |
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162 } |
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163 } |