Embed dotnet-install scripts as resources in Aspire CLI

- Add dotnet-install.sh and dotnet-install.ps1 as embedded resources
- Update DotNetSdkInstaller to extract scripts from embedded resources instead of downloading
- Remove HttpClient download logic
- Add test to verify embedded scripts are accessible

Co-authored-by: mitchdenny <[email protected]>

Author: Copilot

src/Aspire.Cli/Aspire.Cli.csproj

@@ -119,6 +119,11 @@
     </Compile>
   </ItemGroup>
 
+  <ItemGroup>
+    <EmbeddedResource Include="Resources\dotnet-install.sh" />
+    <EmbeddedResource Include="Resources\dotnet-install.ps1" />
+  </ItemGroup>
+
   <ItemGroup>
     <EmbeddedResource Update="Resources\ExecCommandStrings.resx">
       <Generator>ResXFileCodeGenerator</Generator>

src/Aspire.Cli/DotNet/DotNetSdkInstaller.cs

@@ -2,6 +2,7 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 
 using System.Diagnostics;
+using System.Reflection;
 using System.Runtime.InteropServices;
 using Aspire.Cli.Configuration;
 using Microsoft.Extensions.Configuration;
@@ -143,15 +144,22 @@ public async Task InstallAsync(CancellationToken cancellationToken = default)
         Directory.CreateDirectory(sdksDirectory);
 
         // Determine which install script to use based on the platform
-        var (scriptUrl, scriptFileName, scriptRunner) = GetInstallScriptInfo();
+        var (resourceName, scriptFileName, scriptRunner) = GetInstallScriptInfo();
 
-        // Download the install script
+        // Extract the install script from embedded resources
         var scriptPath = Path.Combine(sdksDirectory, scriptFileName);
-        using (var httpClient = new HttpClient())
+        var assembly = Assembly.GetExecutingAssembly();
+        using (var resourceStream = assembly.GetManifestResourceStream(resourceName))
         {
-            httpClient.Timeout = TimeSpan.FromMinutes(5);
-            var scriptContent = await httpClient.GetStringAsync(scriptUrl, cancellationToken);
-            await File.WriteAllTextAsync(scriptPath, scriptContent, cancellationToken);
+            if (resourceStream == null)
+            {
+                throw new InvalidOperationException($"Could not find embedded resource: {resourceName}");
+            }
+
+            using (var fileStream = File.Create(scriptPath))
+            {
+                await resourceStream.CopyToAsync(fileStream, cancellationToken);
+            }
         }
 
         // Make the script executable on Unix-like systems
@@ -298,23 +306,23 @@ private string GetSdksDirectory()
     /// <summary>
     /// Gets the install script information based on the current platform.
     /// </summary>
-    /// <returns>A tuple containing the script URL, script file name, and script runner command.</returns>
-    private static (string ScriptUrl, string ScriptFileName, string ScriptRunner) GetInstallScriptInfo()
+    /// <returns>A tuple containing the embedded resource name, script file name, and script runner command.</returns>
+    private static (string ResourceName, string ScriptFileName, string ScriptRunner) GetInstallScriptInfo()
     {
         if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
         {
             // Try pwsh first (PowerShell Core), then fall back to powershell (Windows PowerShell)
             var powerShellExecutable = GetAvailablePowerShell();
             return (
-                "https://dot.net/v1/dotnet-install.ps1",
+                "Aspire.Cli.Resources.dotnet-install.ps1",
                 "dotnet-install.ps1",
                 powerShellExecutable
             );
         }
         else
         {
             return (
-                "https://dot.net/v1/dotnet-install.sh",
+                "Aspire.Cli.Resources.dotnet-install.sh",
                 "dotnet-install.sh",
                 "bash"
             );