feat(ng-add): generate

`schematics blank --name=ng-add`

src/collection.json

@@ -4,6 +4,10 @@
     "svg-icons-builder": {
       "description": "A blank schematic.",
       "factory": "./svg-icons-builder/index#svgIconsBuilder"
+    },
+    "ng-add": {
+      "description": "A blank schematic.",
+      "factory": "./ng-add/index#ngAdd"
     }
   }
 }

src/ng-add/index.ts

@@ -0,0 +1,10 @@
+import { Rule, SchematicContext, Tree } from '@angular-devkit/schematics';
+
+
+// You don't have to export the function as default. You can also have more than one rule factory
+// per file.
+export function ngAdd(_options: any): Rule {
+  return (tree: Tree, _context: SchematicContext) => {
+    return tree;
+  };
+}

src/ng-add/index_spec.ts

@@ -0,0 +1,16 @@
+import { Tree } from '@angular-devkit/schematics';
+import { SchematicTestRunner } from '@angular-devkit/schematics/testing';
+import * as path from 'path';
+
+
+const collectionPath = path.join(__dirname, '../collection.json');
+
+
+describe('ng-add', () => {
+  it('works', async () => {
+    const runner = new SchematicTestRunner('schematics', collectionPath);
+    const tree = await runner.runSchematicAsync('ng-add', {}, Tree.empty()).toPromise();
+
+    expect(tree.files).toEqual([]);
+  });
+});