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Make a folder delete helper (microsoft#297)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| // Copyright (c) Microsoft Corporation. Licensed under the MIT License. | ||
|
|
||
| namespace Microsoft.CST.OpenSource.Helpers | ||
| { | ||
| using NLog; | ||
| using System; | ||
| using System.IO; | ||
| using System.Threading; | ||
|
|
||
| public static class FileSystemHelper | ||
| { | ||
| static readonly NLog.Logger Logger = NLog.LogManager.GetCurrentClassLogger(); | ||
|
|
||
| /// <summary> | ||
| /// Attempt to delete a directory and its contents with retries. | ||
| /// </summary> | ||
| /// <param name="path">The directory to delete.</param> | ||
| /// <param name="recursive">If true, also delete all the contents of the directory.</param> | ||
| /// <param name="attempts">Number of attempts. Minimum 1.</param> | ||
| /// <param name="millisecondsDelay">Delay between attempts. Minimum 1.</param> | ||
| /// <returns>If the directory was deleted.</returns> | ||
| public static bool RetryDeleteDirectory(string path, bool recursive = true, int attempts = 5, int millisecondsDelay = 10) | ||
| { | ||
| if (path == null) | ||
| return false; | ||
| if (attempts < 1) | ||
| attempts = 1; | ||
| if (millisecondsDelay < 1) | ||
| millisecondsDelay = 1; | ||
|
|
||
| for (int i = 0; i < attempts; i++) | ||
| { | ||
| try | ||
| { | ||
| if (Directory.Exists(path)) | ||
| { | ||
| Directory.Delete(path, recursive); | ||
| } | ||
| if (!Directory.Exists(path)) | ||
| { | ||
| return true; | ||
| } | ||
| } | ||
| catch(Exception ex) when (ex is IOException) | ||
| { | ||
| Thread.Sleep(millisecondsDelay); | ||
| Logger.Debug("Error deleting [{0}], sleeping for {1} seconds.", path, millisecondsDelay); | ||
| } | ||
| } | ||
|
|
||
| return false; | ||
| } | ||
| } | ||
| } |
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