Add EnvironmentExtensions with RefreshEnvironmentVariables

PowerKit/Extensions/EnvironmentExtensions.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections;
+using System.Linq;
+
+namespace PowerKit.Extensions;
+
+internal static class EnvironmentExtensions
+{
+    extension(Environment)
+    {
+        /// <summary>
+        /// Refreshes the environment variables of the current process by re-applying
+        /// the machine-level environment variables.
+        /// </summary>
+        public static void RefreshEnvironmentVariables()
+        {
+            var machineEnvironmentVariables = Environment
+                .GetEnvironmentVariables(EnvironmentVariableTarget.Machine)
+                .Cast<DictionaryEntry>();
+
+            foreach (var environmentVariable in machineEnvironmentVariables)
+            {
+                var key = (string)environmentVariable.Key;
+                var value = (string?)environmentVariable.Value;
+
+                Environment.SetEnvironmentVariable(key, value, EnvironmentVariableTarget.Process);
+            }
+        }
+    }
+}