feat(generator): create custom generator to create new libs

libs/cli/src/generators/app/files/app/src/app/app.component.ts__tmpl__

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+import { Component } from '@angular/core';
+
+@Component({
+  standalone: true,
+  imports: [],
+  selector: 'app-root',
+  template: ``,
+  styles: [''],
+})
+export class AppComponent {}

libs/cli/src/generators/app/files/readme/README.md__tmpl__

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+<h1><%= title %></h1>
+
+> Author: Thomas Laforge
+
+<!-- TODO: add Information/Statement/Rules/Constraint/Steps -->
+
+### Information
+
+### Statement
+
+### Step 1
+
+### Step 2
+
+### Constraints:
+
+### Submitting your work
+
+1. Fork the project
+2. clone it
+3. npm install
+4. `npx nx serve <%= projectName %>`
+5. _...work on it_
+6. Commit your work
+7. Submit a PR with a title beginning with **Answer:<%= challengeNumber %>** that I will review and other dev can review.
+
+<a href="https://github.com/tomalaforge/angular-challenges/pulls?q=label%3A<%= challengeNumber %>+label%3Aanswer"><img src="https://img.shields.io/badge/-Solutions-green" alt="<%= projectName %>"/></a>
+
+<a href='https://github.com/tomalaforge/angular-challenges/pulls?q=label%3A<%= challengeNumber %>+label%3A"answer+author"'><img src="https://img.shields.io/badge/-Author solution-important" alt="<%= projectName %> solution author"/></a>
+
+<!-- <a href="{Blog post url}" target="_blank" rel="noopener noreferrer"><img src="https://img.shields.io/badge/-Blog post explanation-blue" alt="<%= projectName %> blog article"/></a>  -->
+
+_You can ask any question on_ <a href="https://twitter.com/laforge_toma" target="_blank" rel="noopener noreferrer"><img src="./../../logo/twitter.svg" height=20px alt="twitter"/></a>

libs/cli/src/generators/app/files/test/src/app/app.component.spec.ts__tmpl__

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+import { render } from '@testing-library/angular';
+import { AppComponent } from './app.component';
+
+describe('AppComponent', () => {
+  test('...', async () => {
+    await render(AppComponent);
+  });
+});

libs/cli/src/generators/app/files/test/src/test-setup.ts__tmpl__

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+import '@testing-library/jest-dom';
+import 'jest-preset-angular/setup-jest';

libs/cli/src/generators/app/files/test/tsconfig.spec.json__tmpl__

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+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../dist/out-tsc",
+    "module": "commonjs",
+    "types": ["jest", "node", "@testing-library/jest-dom"]
+  },
+  "files": ["src/test-setup.ts"],
+  "include": [
+    "jest.config.ts",
+    "src/**/*.test.ts",
+    "src/**/*.spec.ts",
+    "src/**/*.d.ts"
+  ]
+}

libs/cli/src/generators/app/generator.ts

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+import {
+  applicationGenerator,
+  E2eTestRunner,
+  UnitTestRunner,
+} from '@nx/angular/generators';
+import { formatFiles, generateFiles, names, Tree } from '@nx/devkit';
+import { Linter } from '@nx/linter';
+import { join } from 'path';
+import { getProjectDir } from '../../utils/normalize';
+import { Schema } from './schema';
+
+export async function appGenerator(tree: Tree, options: Schema) {
+  const { appDirectory } = getProjectDir(options.name, options.directory);
+
+  await applicationGenerator(tree, {
+    ...options,
+    style: 'scss',
+    routing: false,
+    inlineStyle: true,
+    inlineTemplate: true,
+    prefix: 'app',
+    unitTestRunner: options.addTest ? UnitTestRunner.Jest : UnitTestRunner.None,
+    e2eTestRunner: E2eTestRunner.None,
+    linter: Linter.EsLint,
+    addTailwind: true,
+    standalone: true,
+    skipTests: true,
+  });
+
+  generateFiles(tree, join(__dirname, 'files', 'app'), appDirectory, {
+    tmpl: '',
+  });
+  tree.delete(join(appDirectory, './src/app/nx-welcome.component.ts'));
+
+  generateFiles(tree, join(__dirname, 'files', 'readme'), appDirectory, {
+    tmpl: '',
+    projectName: names(options.name).name,
+    title: options.title,
+    challengeNumber: options.challengeNumber,
+  });
+
+  if (options.addTest) {
+    generateFiles(tree, join(__dirname, 'files', 'test'), appDirectory, {
+      tmpl: '',
+    });
+  }
+
+  await formatFiles(tree);
+}
+
+export default appGenerator;

libs/cli/src/generators/app/schema.d.ts

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+export interface Schema {
+  title: string;
+  challengeNumber: number;
+  name: string;
+  directory?: string;
+  addTest?: boolean;
+  skipPackageJson?: boolean;
+  rootProject?: boolean;
+}

libs/cli/src/generators/app/schema.json

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+{
+  "$schema": "http://json-schema.org/schema",
+  "$id": "GeneratorNxApp",
+  "title": "Creates an Angular application.",
+  "description": "Creates an Angular application.",
+  "type": "object",
+  "cli": "nx",
+  "properties": {
+    "name": {
+      "description": "The name of the application.",
+      "type": "string",
+      "$default": {
+        "$source": "argv",
+        "index": 0
+      },
+      "x-prompt": "What name would you like to use for the application?",
+      "pattern": "^[a-zA-Z].*$"
+    },
+    "title": {
+      "description": "Title of your challenge.",
+      "type": "string",
+      "$default": {
+        "$source": "argv",
+        "index": 1
+      },
+      "x-priority": "important"
+    },
+    "challengeNumber": {
+      "description": "The number of your challenge.",
+      "type": "number",
+      "$default": {
+        "$source": "argv",
+        "index": 2
+      },
+      "x-priority": "important"
+    },
+    "directory": {
+      "description": "The directory of the new application.",
+      "type": "string",
+      "x-priority": "important"
+    },
+    "addTest": {
+      "description": "add spec files.",
+      "type": "boolean",
+      "default": true,
+      "alias": "S"
+    },
+    "skipPackageJson": {
+      "type": "boolean",
+      "default": false,
+      "description": "Do not add dependencies to `package.json`.",
+      "x-priority": "internal"
+    },
+    "rootProject": {
+      "description": "Create an application at the root of the workspace.",
+      "type": "boolean",
+      "default": false,
+      "hidden": true,
+      "x-priority": "internal"
+    }
+  },
+  "additionalProperties": false,
+  "required": ["name", "title", "challengeNumber"]
+}

libs/cli/src/utils/normalize.ts

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+import { names } from '@nx/devkit';
+
+export function normalizeDirectory(
+  appName: string,
+  directoryName: string
+): string {
+  return directoryName
+    ? `${names(directoryName).fileName}/${names(appName).fileName}`
+    : names(appName).fileName;
+}
+
+export function normalizeProjectName(
+  appName: string,
+  directoryName: string
+): string {
+  return normalizeDirectory(appName, directoryName).replace(/\//g, '-');
+}
+
+export function extractLayoutDirectory(directory: string): {
+  layoutDirectory: string;
+  projectDirectory: string;
+} {
+  if (directory) {
+    directory = directory.startsWith('/') ? directory.substring(1) : directory;
+    for (const dir of ['apps', 'libs', 'packages']) {
+      if (directory.startsWith(dir + '/') || directory === dir) {
+        return {
+          layoutDirectory: dir,
+          projectDirectory: directory.substring(dir.length + 1),
+        };
+      }
+    }
+  }
+  return { layoutDirectory: null, projectDirectory: directory };
+}
+
+export function getProjectDir(name: string, directory: string) {
+  const { projectDirectory } = extractLayoutDirectory(directory);
+  return {
+    appProjectName: normalizeProjectName(name, projectDirectory),
+    appDirectory: 'apps/' + normalizeDirectory(name, projectDirectory),
+  };
+}