💾 Feat(IO): New feature to fetch total size of a folder.

Author: Dynesshely

Common.BasicHelper/IO/DirectoryHelper.cs

@@ -0,0 +1,39 @@
+using Common.BasicHelper.Utils.Extensions;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+
+namespace Common.BasicHelper.IO;
+
+public class DirectoryHelper
+{
+    /// <summary>
+    /// 获取一个文件夹包括子文件夹及其子文件的总大小
+    /// </summary>
+    /// <param name="path">文件夹路径</param>
+    /// <returns>总大小</returns>
+    public static long GetDirectorySize(string path)
+    {
+        var result = 0L;
+
+        var dir = path.GetFullPath();
+
+        if (!Directory.Exists(dir)) return result;
+
+        var pendingFolders = new Queue<DirectoryInfo>();
+
+        pendingFolders.Enqueue(new DirectoryInfo(dir));
+
+        while (pendingFolders.Count > 0)
+        {
+            var folder = pendingFolders.Dequeue();
+
+            result += folder.GetFiles().Sum(file => file.Length);
+
+            foreach (var subFolder in folder.GetDirectories())
+                pendingFolders.Enqueue(subFolder);
+        }
+
+        return result;
+    }
+}