feat(net): templatized csharp sample app and moved from init to sample-app. Changed hook code to allow templating. (#3525)

* Templatized csharp init to a base skeleton.

* Moved csharp init to sample-app

Author: gweinhold

packages/aws-cdk/lib/init-templates/app/csharp/README.md

@@ -1,20 +1,6 @@
-
-# CDK HelloWorld
-
-Welcome to your CDK .NET project!
-
-You should explore the contents of this template. It demonstrates a CDK app with two instances of
-a stack (`HelloStack`) which also uses a user-defined construct (`HelloConstruct`).
-
-The `cdk.json` file tells the CDK Toolkit how to execute your app. It uses the `dotnet` CLI to do this.
-
 # Useful commands
 
 * `dotnet build src` compile this app
-* `cdk ls`           list all stacks in the app
-* `cdk synth`        emits the synthesized CloudFormation template
 * `cdk deploy`       deploy this stack to your default AWS account/region
 * `cdk diff`         compare deployed stack with current state
-* `cdk docs`         open CDK documentation
-
-Enjoy!
+* `cdk synth`        emits the synthesized CloudFormation template

packages/aws-cdk/lib/init-templates/app/csharp/add-project.hook.ts

@@ -3,8 +3,8 @@ import * as path from 'path';
 import { InvokeHook } from '../../../init';
 
 export const invoke: InvokeHook = async (targetDirectory: string) => {
-  const slnPath = path.join(targetDirectory, "src", "HelloCdk.sln");
-  const csprojPath = path.join(targetDirectory, "src", "HelloCdk", "HelloCdk.csproj");
+  const slnPath = path.join(targetDirectory, "src", "%name.PascalCased%.sln");
+  const csprojPath = path.join(targetDirectory, "src", "%name.PascalCased%", "%name.PascalCased%.csproj");
 
   const child = child_process.spawn('dotnet', [ 'sln', slnPath, 'add', csprojPath ], {
     // Need this for Windows where we want .cmd and .bat to be found as well.
@@ -26,7 +26,7 @@ export const invoke: InvokeHook = async (targetDirectory: string) => {
       if (code === 0) {
         resolve(Buffer.concat(stdout).toString('utf-8'));
       } else {
-        reject(new Error(`Could not add project HelloCdk.csproj to solution HelloCdk.sln. Error code: ${code}`));
+        reject(new Error(`Could not add project %name.PascalCased%.csproj to solution %name.PascalCased%.sln. Error code: ${code}`));
       }
     });
   });

packages/aws-cdk/lib/init-templates/app/csharp/cdk.json

@@ -0,0 +1,3 @@
+{
+  "app": "dotnet src/%name.PascalCased%/bin/Debug/netcoreapp2.1/%name.PascalCased%.dll"
+}

packages/aws-cdk/lib/init-templates/app/csharp/cdk.template.json

@@ -0,0 +1,12 @@
+using Amazon.CDK;
+
+namespace %name.PascalCased%
+{
+    public class %name.PascalCased%Stack : Stack
+    {
+        public %name.PascalCased%Stack(Construct parent, string id, IStackProps props) : base(parent, id, props)
+        {
+            // The code that defines your stack goes here
+        }
+    }
+}

packages/aws-cdk/lib/init-templates/app/csharp/src/HelloCdk.sln renamed to packages/aws-cdk/lib/init-templates/app/csharp/src/%name.PascalCased%.template.sln

@@ -0,0 +1,17 @@
+using Amazon.CDK;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace %name.PascalCased%
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            var app = new App(null);
+            new %name.PascalCased%Stack(app, "%name.PascalCased%Stack", new StackProps());
+            app.Synth();
+        }
+    }
+}