Simplify autoShell Action Wiring

.github/workflows/build-dotnet.yml

@@ -41,13 +41,32 @@ jobs:
           filters: |
             dotnet:
               - "dotnet/**"
+              - "ts/packages/agents/desktop/src/**Schema.ts"
               - ".github/workflows/build-dotnet.yml"
       - name: Setup MSBuild
         if: ${{ github.event_name != 'pull_request' || steps.filter.outputs.dotnet != 'false' }}
         uses: microsoft/setup-msbuild@v2
       - name: Setup NuGet
         if: ${{ github.event_name != 'pull_request' || steps.filter.outputs.dotnet != 'false' }}
         uses: NuGet/setup-nuget@v2.0.0
+      - name: Install pnpm
+        if: ${{ github.event_name != 'pull_request' || steps.filter.outputs.dotnet != 'false' }}
+        uses: pnpm/action-setup@v4
+        with:
+          package_json_file: ts/package.json
+      - name: Setup Node.js
+        if: ${{ github.event_name != 'pull_request' || steps.filter.outputs.dotnet != 'false' }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: "pnpm"
+          cache-dependency-path: ts/pnpm-lock.yaml
+      - name: Install TS dependencies
+        if: ${{ github.event_name != 'pull_request' || steps.filter.outputs.dotnet != 'false' }}
+        working-directory: ts
+        run: |
+          pnpm install --frozen-lockfile --strict-peer-dependencies
+          pnpm run --filter @typeagent/action-schema-compiler... build
       - name: Restore Packages (AutoShell)
         if: ${{ github.event_name != 'pull_request' || steps.filter.outputs.dotnet != 'false' }}
         working-directory: dotnet

.gitignore

@@ -88,6 +88,9 @@ bld/
 # Visual Studio 2017 auto generated files
 Generated\ Files/
 
+# Roslyn source generator output
+**/Generated/
+
 # MSTest test Results
 [Tt]est[Rr]esult*/
 [Bb]uild[Ll]og.*

dotnet/autoShell.Generators/ActionParamsGenerator.cs

@@ -0,0 +1,54 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+
+using System.IO;
+using Microsoft.CodeAnalysis;
+
+namespace autoShell.Generators;
+
+/// <summary>
+/// Roslyn incremental source generator that reads .pas.json schema files
+/// and generates strongly-typed C# parameter records for each action.
+/// </summary>
+[Generator]
+public class ActionParamsGenerator : IIncrementalGenerator
+{
+    public void Initialize(IncrementalGeneratorInitializationContext context)
+    {
+        // Filter AdditionalFiles to only .pas.json files
+        var schemaFiles = context.AdditionalTextsProvider
+            .Where(static file => file.Path.EndsWith(".pas.json"));
+
+        // Transform each schema file into generated source
+        var sources = schemaFiles.Select(static (file, cancellationToken) =>
+        {
+            var text = file.GetText(cancellationToken);
+            if (text == null)
+            {
+                return (FileName: (string)null, Source: (string)null);
+            }
+
+            var json = text.ToString();
+            var actions = SchemaParser.Parse(json);
+
+            if (actions.Count == 0)
+            {
+                return (FileName: (string)null, Source: (string)null);
+            }
+
+            string fileName = Path.GetFileNameWithoutExtension(file.Path);
+            string source = RecordEmitter.Emit(actions, Path.GetFileName(file.Path));
+
+            return (FileName: fileName, Source: source);
+        });
+
+        // Register each generated source
+        context.RegisterSourceOutput(sources, static (ctx, result) =>
+        {
+            if (result.FileName != null && result.Source != null)
+            {
+                ctx.AddSource($"{result.FileName}.g.cs", result.Source);
+            }
+        });
+    }
+}

dotnet/autoShell.Generators/RecordEmitter.cs

@@ -0,0 +1,62 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+
+using System.Collections.Generic;
+using System.Text;
+
+namespace autoShell.Generators;
+
+/// <summary>
+/// Emits C# source code for action parameter record classes.
+/// </summary>
+internal static class RecordEmitter
+{
+    /// <summary>
+    /// Generates a single C# source file containing all action parameter records.
+    /// </summary>
+    public static string Emit(List<ActionDefinition> actions, string schemaFileName)
+    {
+        var sb = new StringBuilder();
+
+        sb.AppendLine("// <auto-generated/>");
+        sb.AppendLine($"// Generated from {schemaFileName}");
+        sb.AppendLine();
+        sb.AppendLine("using System.Text.Json.Serialization;");
+        sb.AppendLine();
+        sb.AppendLine("namespace autoShell.Handlers.Generated;");
+        sb.AppendLine();
+
+        foreach (var action in actions)
+        {
+            EmitRecord(sb, action);
+            sb.AppendLine();
+        }
+
+        return sb.ToString();
+    }
+
+    private static void EmitRecord(StringBuilder sb, ActionDefinition action)
+    {
+        sb.AppendLine($"/// <summary>");
+        sb.AppendLine($"/// Parameters for the {action.ActionName} action.");
+        sb.AppendLine($"/// </summary>");
+
+        if (action.Parameters.Count == 0)
+        {
+            sb.AppendLine($"internal record {action.TypeName};");
+            return;
+        }
+
+        sb.AppendLine($"internal record {action.TypeName}");
+        sb.AppendLine("{");
+
+        foreach (var param in action.Parameters)
+        {
+            sb.AppendLine($"    [JsonPropertyName(\"{param.JsonName}\")]");
+            sb.AppendLine($"    public {param.CSharpType} {param.CSharpName} {{ get; init; }} = {param.DefaultValue};");
+            sb.AppendLine();
+        }
+
+        sb.AppendLine("}");
+    }
+}