feat(cdk init): empty 'app' template

To avoid people having to clear out their template from the generated
topic and queue after they run 'cdk init app', make the 'app' template an
empty CDK project.

The original code has been moved to 'cdk init sample-app' (aliases: 'cdk
init sample', 'cdk init example').

Fixes #1124.

TO DO AFTER MERGING:

- [ ] Update workshop text to use new template

packages/aws-cdk/lib/init-templates/app/typescript/lib/%name%-stack.template.ts

@@ -1,17 +1,9 @@
-import sns = require('@aws-cdk/aws-sns');
-import sqs = require('@aws-cdk/aws-sqs');
 import cdk = require('@aws-cdk/cdk');
 
 export class %name.PascalCased%Stack extends cdk.Stack {
   constructor(parent: cdk.App, name: string, props?: cdk.StackProps) {
     super(parent, name, props);
 
-    const queue = new sqs.Queue(this, '%name.PascalCased%Queue', {
-      visibilityTimeoutSec: 300
-    });
-
-    const topic = new sns.Topic(this, '%name.PascalCased%Topic');
-
-    topic.subscribeQueue(queue);
+    // The code that defines your stack goes here
   }
 }

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

@@ -15,8 +15,6 @@
     "aws-cdk": "^%cdk-version%"
   },
   "dependencies": {
-    "@aws-cdk/aws-sns": "^%cdk-version%",
-    "@aws-cdk/aws-sqs": "^%cdk-version%",
     "@aws-cdk/cdk": "^%cdk-version%"
   }
 }

packages/aws-cdk/lib/init-templates/sample-app/info.json

@@ -0,0 +1,4 @@
+{
+    "description": "Example CDK Application with some constructs",
+    "aliases": ["sample", "example"]
+}

packages/aws-cdk/lib/init-templates/sample-app/typescript/.template.gitignore

@@ -0,0 +1,3 @@
+*.js
+*.d.ts
+node_modules

packages/aws-cdk/lib/init-templates/sample-app/typescript/.template.npmignore

@@ -0,0 +1,2 @@
+*.ts
+!*.d.ts

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

@@ -0,0 +1,7 @@
+# Useful commands
+
+ * `npm run build`   compile typescript to js
+ * `npm run watch`   watch for changes and compile
+ * `cdk deploy`      deploy this stack to your default AWS account/region
+ * `cdk diff`        compare deployed stack with current state
+ * `cdk synth`       emits the synthesized CloudFormation template

packages/aws-cdk/lib/init-templates/sample-app/typescript/bin/%name%.template.ts

@@ -0,0 +1,7 @@
+#!/usr/bin/env node
+import cdk = require('@aws-cdk/cdk');
+import { %name.PascalCased%Stack } from '../lib/%name%-stack';
+
+const app = new cdk.App();
+new %name.PascalCased%Stack(app, '%name.PascalCased%Stack');
+app.run();

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

@@ -0,0 +1,3 @@
+{
+  "app": "node bin/%name%.js"
+}

packages/aws-cdk/lib/init-templates/sample-app/typescript/lib/%name%-stack.template.ts

@@ -0,0 +1,17 @@
+import sns = require('@aws-cdk/aws-sns');
+import sqs = require('@aws-cdk/aws-sqs');
+import cdk = require('@aws-cdk/cdk');
+
+export class %name.PascalCased%Stack extends cdk.Stack {
+  constructor(parent: cdk.App, name: string, props?: cdk.StackProps) {
+    super(parent, name, props);
+
+    const queue = new sqs.Queue(this, '%name.PascalCased%Queue', {
+      visibilityTimeoutSec: 300
+    });
+
+    const topic = new sns.Topic(this, '%name.PascalCased%Topic');
+
+    topic.subscribeQueue(queue);
+  }
+}

packages/aws-cdk/lib/init-templates/sample-app/typescript/package.template.json

@@ -0,0 +1,22 @@
+{
+  "name": "%name%",
+  "version": "0.1.0",
+  "bin": {
+    "%name%": "bin/%name%.js"
+  },
+  "scripts": {
+    "build": "tsc",
+    "watch": "tsc -w",
+    "cdk": "cdk"
+  },
+  "devDependencies": {
+    "@types/node": "^8.9.4",
+    "typescript": "^3.1.2",
+    "aws-cdk": "^%cdk-version%"
+  },
+  "dependencies": {
+    "@aws-cdk/aws-sns": "^%cdk-version%",
+    "@aws-cdk/aws-sqs": "^%cdk-version%",
+    "@aws-cdk/cdk": "^%cdk-version%"
+  }
+}

packages/aws-cdk/lib/init-templates/sample-app/typescript/tsconfig.json

@@ -0,0 +1,21 @@
+{
+  "compilerOptions": {
+    "target":"ES2018",
+    "module": "commonjs",
+    "lib": ["es2016", "es2017.object", "es2017.string"],
+    "declaration": true,
+    "strict": true,
+    "noImplicitAny": true,
+    "strictNullChecks": true,
+    "noImplicitThis": true,
+    "alwaysStrict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": false,
+    "inlineSourceMap": true,
+    "inlineSources": true,
+    "experimentalDecorators": true,
+    "strictPropertyInitialization":false
+  }
+}