feat: add support for Angular v11

Author: beeman

src/interfaces.ts

@@ -2,3 +2,16 @@ export interface GHPages {
   publish(dir: string, options: any, callback: (error: any) => void);
   clean?(): void;
 }
+
+export interface WorkspaceProject {
+  projectType?: string;
+  architect?: Record<
+    string,
+    { builder: string; options?: Record<string, any> }
+  >;
+}
+
+export interface Workspace {
+  defaultProject?: string;
+  projects: Record<string, WorkspaceProject>;
+}

src/ng-add.ts

@@ -1,35 +1,31 @@
-import { experimental, JsonParseMode, parseJson } from '@angular-devkit/core';
+import { JsonParseMode, parseJson } from '@angular-devkit/core';
 import {
   SchematicContext,
   SchematicsException,
-  Tree
+  Tree,
 } from '@angular-devkit/schematics';
+import { Workspace } from './interfaces';
 
-function getWorkspace(
-  host: Tree
-): { path: string; workspace: experimental.workspace.WorkspaceSchema } {
+function getWorkspace(host: Tree): { path: string; workspace: Workspace } {
   const possibleFiles = ['/angular.json', '/.angular.json'];
-  const path = possibleFiles.filter(path => host.exists(path))[0];
+  const path = possibleFiles.filter((path) => host.exists(path))[0];
 
   const configBuffer = host.read(path);
   if (configBuffer === null) {
     throw new SchematicsException(`Could not find angular.json`);
   }
   const content = configBuffer.toString();
 
-  let workspace: experimental.workspace.WorkspaceSchema;
+  let workspace: Workspace;
   try {
-    workspace = (parseJson(
-      content,
-      JsonParseMode.Loose
-    ) as {}) as experimental.workspace.WorkspaceSchema;
+    workspace = (parseJson(content, JsonParseMode.Loose) as {}) as Workspace;
   } catch (e) {
     throw new SchematicsException(`Could not parse angular.json: ` + e.message);
   }
 
   return {
     path,
-    workspace
+    workspace,
   };
 }
 interface NgAddOptions {
@@ -78,7 +74,7 @@ export const ngAdd = (options: NgAddOptions) => (
 
   project.architect['deploy'] = {
     builder: 'angular-cli-ghpages:deploy',
-    options: {}
+    options: {},
   };
 
   tree.overwrite(workspacePath, JSON.stringify(workspace, null, 2));