feat(@schematics/angular): remove entryComponent from component schematic

BREAKING CHANGE:

`entryComponent` option has been removed from the `component` schematic as this was intended to be used with the the now no longer supported ViewEngine rendering engine.

Author: alan-agius4

packages/schematics/angular/component/index.ts

@@ -22,11 +22,7 @@ import {
   url,
 } from '@angular-devkit/schematics';
 import * as ts from '../third_party/github.com/Microsoft/TypeScript/lib/typescript';
-import {
-  addDeclarationToModule,
-  addEntryComponentToModule,
-  addExportToModule,
-} from '../utility/ast-utils';
+import { addDeclarationToModule, addExportToModule } from '../utility/ast-utils';
 import { InsertChange } from '../utility/change';
 import { buildRelativePath, findModuleFromOptions } from '../utility/find-module';
 import { applyLintFix } from '../utility/lint-fix';
@@ -93,25 +89,6 @@ function addDeclarationToNgModule(options: ComponentOptions): Rule {
       host.commitUpdate(exportRecorder);
     }
 
-    if (options.entryComponent) {
-      // Need to refresh the AST because we overwrote the file in the host.
-      const source = readIntoSourceFile(host, modulePath);
-
-      const entryComponentRecorder = host.beginUpdate(modulePath);
-      const entryComponentChanges = addEntryComponentToModule(
-        source, modulePath,
-        strings.classify(options.name) + strings.classify(options.type),
-        relativePath);
-
-      for (const change of entryComponentChanges) {
-        if (change instanceof InsertChange) {
-          entryComponentRecorder.insertLeft(change.pos, change.toAdd);
-        }
-      }
-      host.commitUpdate(entryComponentRecorder);
-    }
-
-
     return host;
   };
 }

packages/schematics/angular/component/index_spec.ts

@@ -148,14 +148,6 @@ describe('Component Schematic', () => {
     expect(appModuleContent).toMatch(/exports: \[\n(\s*)  FooComponent\n\1\]/);
   });
 
-  it('should set the entry component', async () => {
-    const options = { ...defaultOptions, entryComponent: true };
-
-    const tree = await schematicRunner.runSchematicAsync('component', options, appTree).toPromise();
-    const appModuleContent = tree.readContent('/projects/bar/src/app/app.module.ts');
-    expect(appModuleContent).toMatch(/entryComponents: \[\n(\s*)  FooComponent\n\1\]/);
-  });
-
   it('should import into a specified module', async () => {
     const options = { ...defaultOptions, module: 'app.module.ts' };
 

packages/schematics/angular/component/schema.json

@@ -132,12 +132,6 @@
       "description": "The declaring NgModule exports this component.",
       "x-user-analytics": 19
     },
-    "entryComponent": {
-      "type": "boolean",
-      "default": false,
-      "description": "The new component is the entry component of the declaring NgModule.",
-      "x-deprecated": "Since version 9.0.0 with Ivy, entryComponents is no longer necessary."
-    },
     "lintFix": {
       "type": "boolean",
       "description": "Apply lint fixes after generating the component.",

packages/schematics/angular/utility/ast-utils.ts

@@ -488,19 +488,6 @@ export function addBootstrapToModule(source: ts.SourceFile,
   return addSymbolToNgModuleMetadata(source, modulePath, 'bootstrap', classifiedName, importPath);
 }
 
-/**
- * Custom function to insert an entryComponent into NgModule. It also imports it.
- * @deprecated - Since version 9.0.0 with Ivy, entryComponents is no longer necessary.
- */
-export function addEntryComponentToModule(source: ts.SourceFile,
-                                          modulePath: string, classifiedName: string,
-                                          importPath: string): Change[] {
-  return addSymbolToNgModuleMetadata(
-    source, modulePath,
-    'entryComponents', classifiedName, importPath,
-  );
-}
-
 /**
  * Determine if an import already exists.
  */