Ask to run as administrator instead of requiring user to manually do it

NodeSwap/Commands/UseCommand.cs

@@ -1,6 +1,9 @@
 using System;
+using System.Diagnostics;
 using System.IO;
+using System.Linq;
 using System.Runtime.InteropServices;
+using System.Security.Principal;
 using DotMake.CommandLine;
 
 namespace NodeSwap.Commands;
@@ -58,6 +61,13 @@ public int Run()
             }
         }
 
+        if (!IsAdministrator())
+        {
+            // Restart the application with elevated privileges
+            ElevateApplication();
+            return 1;
+        }
+
         //
         // Replace the symlink
         //
@@ -94,6 +104,38 @@ public int Run()
         return 0;
     }
 
+    private static bool IsAdministrator()
+    {
+        using var identity = WindowsIdentity.GetCurrent();
+        var principal = new WindowsPrincipal(identity);
+        return principal.IsInRole(WindowsBuiltInRole.Administrator);
+    }
+
+    private static void ElevateApplication()
+    {
+        var currentProcessModule = Process.GetCurrentProcess().MainModule;
+        if (currentProcessModule == null) throw new Exception("Unable to get the current process module");
+
+        var process = new Process
+        {
+            StartInfo = new ProcessStartInfo
+            {
+                FileName = currentProcessModule.FileName,
+                UseShellExecute = true,
+                Verb = "runas", // Forces the application to run with elevated permissions
+                Arguments = string.Join(" ", Environment.GetCommandLineArgs().Skip(1)),
+            },
+        };
+
+        try
+        {
+            process.Start();
+        }
+        catch (Exception ex)
+        {
+            Console.Error.WriteLine("Could not restart as Administrator: " + ex.Message);
+        }
+    }
 
     [DllImport("kernel32.dll")]
     private static extern bool CreateSymbolicLink(

NodeSwap/NodeSwap.csproj

@@ -4,7 +4,7 @@
         <OutputType>Exe</OutputType>
         <TargetFramework>net8.0-windows</TargetFramework>
         <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
-        <Version>1.4.0</Version>
+        <Version>1.4.1</Version>
         <!-- Single file app – https://docs.microsoft.com/en-us/dotnet/core/deploying/single-file -->
         <PublishSingleFile>true</PublishSingleFile>
         <RuntimeIdentifier>win-x64</RuntimeIdentifier>

README.md

@@ -29,11 +29,7 @@ Download and run the latest installer from the [Releases][3] page.
 [3]: https://github.com/simshaun/NodeSwap/releases
 
 
-## Usage
-
-> ### ⚠ Admin rights: 
-> **NodeSwap** needs to be ran in an elevated terminal (i.e. Run as Administrator).  
-> It needs this in order to create symlinks when installing and swapping Node.js versions. 
+## Usage 
 
 Type `nodeswap` in your terminal for help. 
 
@@ -49,6 +45,12 @@ Type `nodeswap` in your terminal for help.
 - `nodeswap uninstall <version>` — The version must be specific like `22.6.0`.
 - `nodeswap use <version>` — Switch to a specific version. Must be specific like `22.6.0`.
 
+> ### ⚠ Admin privileges:
+> NodeSwap uses a symlink to point your CLI to the active Node.js version.
+> On Windows, creating symlinks requires admin privileges.
+> When swapping Node.js versions, the `use` command will prompt for administrator
+> access if your terminal isn't already elevated.
+
 
 ## How-to