Add OS information to aspire doctor

docs/specs/cli-output-formats.md

@@ -426,6 +426,18 @@ The JSON form includes secret values. Do not redirect it to logs or files unless
 ```json
 {
   "checks": [
+    {
+      "category": "environment",
+      "name": "operating-system",
+      "status": "pass",
+      "message": "Operating system: Linux Ubuntu 24.04",
+      "metadata": {
+        "osType": "Linux",
+        "displayName": "Linux Ubuntu",
+        "version": "24.04",
+        "description": "Ubuntu 24.04.2 LTS"
+      }
+    },
     {
       "category": "sdk",
       "name": "dotnet-sdk",
@@ -442,7 +454,7 @@ The JSON form includes secret values. Do not redirect it to logs or files unless
     }
   ],
   "summary": {
-    "passed": 1,
+    "passed": 2,
     "warnings": 1,
     "failed": 0
   }

src/Aspire.Cli/Program.cs

@@ -509,6 +509,7 @@ internal static async Task<IHost> BuildApplicationAsync(string[] args, CliStartu
 
         // Environment checking services.
         builder.Services.AddSingleton<IEnvironmentCheck, AspireVersionCheck>();
+        builder.Services.AddSingleton<IEnvironmentCheck, OperatingSystemCheck>();
         builder.Services.AddSingleton<IEnvironmentCheck, WslEnvironmentCheck>();
         builder.Services.AddSingleton<IEnvironmentCheck, DotNetSdkCheck>();
         builder.Services.AddSingleton<IEnvironmentCheck, TypeScriptAppHostToolingCheck>();

src/Aspire.Cli/Resources/DoctorCommandStrings.resx

@@ -92,6 +92,10 @@
   <data name="CheckingPrerequisites" xml:space="preserve">
     <value>Checking Aspire environment...</value>
   </data>
+  <data name="OperatingSystemMessageFormat" xml:space="preserve">
+    <value>Operating system: {0}</value>
+    <comment>{0} is the operating system display name and version, for example "Windows 10.0.22631", "macOS 26.0", or "Linux Ubuntu 24.04".</comment>
+  </data>
   <data name="VersionUnknown" xml:space="preserve">
     <value>unknown</value>
   </data>

src/Aspire.Cli/Utils/EnvironmentChecker/AspireVersionCheck.cs

@@ -23,6 +23,9 @@ internal sealed class AspireVersionCheck(
     CliExecutionContext executionContext,
     ILogger<AspireVersionCheck> logger) : IEnvironmentCheck
 {
+    internal const string AppHostVersionCheckName = "apphost-version";
+    internal const string CliVersionCheckName = "cli-version";
+
     // Version checks should appear first so users immediately see which Aspire bits
     // produced the rest of the doctor output before reading environment diagnostics.
     public int Order => 0;
@@ -49,8 +52,8 @@ await GetCliVersionCheckAsync(cancellationToken)
 
             appHostVersionCheck = new EnvironmentCheckResult
             {
-                Category = "apphost",
-                Name = "apphost-version",
+                Category = EnvironmentCheckCategories.AppHost,
+                Name = AppHostVersionCheckName,
                 Status = EnvironmentCheckStatus.Warning,
                 Message = DoctorCommandStrings.AppHostVersionCheckFailedMessage,
                 Details = ex.Message
@@ -88,8 +91,8 @@ private async Task<EnvironmentCheckResult> GetCliVersionCheckAsync(CancellationT
             {
                 return new EnvironmentCheckResult
                 {
-                    Category = "aspire",
-                    Name = "cli-version",
+                    Category = EnvironmentCheckCategories.Aspire,
+                    Name = CliVersionCheckName,
                     Status = EnvironmentCheckStatus.Warning,
                     Message = FormatCliVersionMessage(currentVersion, identityChannel),
                     Details = $"{DoctorCommandStrings.CliVersionUpdateCheckFailedMessage}: {updateCheckError}",
@@ -101,8 +104,8 @@ private async Task<EnvironmentCheckResult> GetCliVersionCheckAsync(CancellationT
             {
                 return new EnvironmentCheckResult
                 {
-                    Category = "aspire",
-                    Name = "cli-version",
+                    Category = EnvironmentCheckCategories.Aspire,
+                    Name = CliVersionCheckName,
                     Status = EnvironmentCheckStatus.Warning,
                     // Both versions get their channel inline next to them so
                     // the message is unambiguous:
@@ -124,8 +127,8 @@ private async Task<EnvironmentCheckResult> GetCliVersionCheckAsync(CancellationT
 
             return new EnvironmentCheckResult
             {
-                Category = "aspire",
-                Name = "cli-version",
+                Category = EnvironmentCheckCategories.Aspire,
+                Name = CliVersionCheckName,
                 Status = EnvironmentCheckStatus.Pass,
                 Message = FormatCliVersionMessage(currentVersion, identityChannel),
                 Metadata = BuildCliVersionMetadata(currentVersion, latestVersion: null, status.UpdateCommand, updateCheckError: null, identityChannel, latestVersionChannel: null)
@@ -141,8 +144,8 @@ private async Task<EnvironmentCheckResult> GetCliVersionCheckAsync(CancellationT
 
             return new EnvironmentCheckResult
             {
-                Category = "aspire",
-                Name = "cli-version",
+                Category = EnvironmentCheckCategories.Aspire,
+                Name = CliVersionCheckName,
                 Status = EnvironmentCheckStatus.Warning,
                 Message = DoctorCommandStrings.CliVersionUpdateCheckFailedMessage,
                 Details = ex.Message,
@@ -226,8 +229,8 @@ private static string AppendChannelSuffix(string message, string? channel)
         {
             return new EnvironmentCheckResult
             {
-                Category = "apphost",
-                Name = "apphost-version",
+                Category = EnvironmentCheckCategories.AppHost,
+                Name = AppHostVersionCheckName,
                 Status = EnvironmentCheckStatus.Warning,
                 Message = DoctorCommandStrings.AppHostVersionCheckFailedMessage,
                 Details = ex.Message
@@ -239,8 +242,8 @@ private static string AppendChannelSuffix(string message, string? channel)
 
             return new EnvironmentCheckResult
             {
-                Category = "apphost",
-                Name = "apphost-version",
+                Category = EnvironmentCheckCategories.AppHost,
+                Name = AppHostVersionCheckName,
                 Status = EnvironmentCheckStatus.Warning,
                 Message = DoctorCommandStrings.AppHostVersionCheckFailedMessage,
                 Details = ex.Message
@@ -273,8 +276,8 @@ private static string AppendChannelSuffix(string message, string? channel)
                 {
                     return new EnvironmentCheckResult
                     {
-                        Category = "apphost",
-                        Name = "apphost-version",
+                        Category = EnvironmentCheckCategories.AppHost,
+                        Name = AppHostVersionCheckName,
                         Status = EnvironmentCheckStatus.Warning,
                         Message = AppendChannelSuffix(
                             string.Format(CultureInfo.CurrentCulture, DoctorCommandStrings.AppHostVersionUnknownMessageFormat, relativePath),
@@ -285,8 +288,8 @@ private static string AppendChannelSuffix(string message, string? channel)
 
                 return new EnvironmentCheckResult
                 {
-                    Category = "apphost",
-                    Name = "apphost-version",
+                    Category = EnvironmentCheckCategories.AppHost,
+                    Name = AppHostVersionCheckName,
                     Status = EnvironmentCheckStatus.Pass,
                     // Channel goes inline next to the version, not at the
                     // end of the message: "AppHost version 13.0.0 (channel: stable) (path/to/AppHost.csproj)"
@@ -312,8 +315,8 @@ private static string AppendChannelSuffix(string message, string? channel)
 
                 return new EnvironmentCheckResult
                 {
-                    Category = "apphost",
-                    Name = "apphost-version",
+                    Category = EnvironmentCheckCategories.AppHost,
+                    Name = AppHostVersionCheckName,
                     Status = EnvironmentCheckStatus.Warning,
                     Message = DoctorCommandStrings.AppHostVersionCheckFailedMessage,
                     Details = ex.Message,