feat(storybook): choose to generate ts config

docs/generated/packages/react-native.json

@@ -355,7 +355,12 @@
           },
           "js": {
             "type": "boolean",
-            "description": "Generate JavaScript files rather than TypeScript files.",
+            "description": "Generate JavaScript story files rather than TypeScript story files.",
+            "default": false
+          },
+          "tsConfiguration": {
+            "type": "boolean",
+            "description": "Configure your project with TypeScript. Generate main.ts and preview.ts files, instead of main.js and preview.js.",
             "default": false
           },
           "linter": {

docs/generated/packages/react.json

@@ -625,7 +625,12 @@
           },
           "js": {
             "type": "boolean",
-            "description": "Generate JavaScript files rather than TypeScript files.",
+            "description": "Generate JavaScript story files rather than TypeScript story files.",
+            "default": false
+          },
+          "tsConfiguration": {
+            "type": "boolean",
+            "description": "Configure your project with TypeScript. Generate main.ts and preview.ts files, instead of main.js and preview.js.",
             "default": false
           },
           "linter": {

docs/generated/packages/storybook.json

@@ -139,7 +139,12 @@
           },
           "js": {
             "type": "boolean",
-            "description": "Generate JavaScript files rather than TypeScript files.",
+            "description": "Generate JavaScript story files rather than TypeScript story files.",
+            "default": false
+          },
+          "tsConfiguration": {
+            "type": "boolean",
+            "description": "Configure your project with TypeScript. Generate main.ts and preview.ts files, instead of main.js and preview.js.",
             "default": false
           },
           "standaloneConfig": {

packages/react-native/src/generators/storybook-configuration/schema.d.ts

@@ -4,6 +4,7 @@ export interface StorybookConfigureSchema {
   name: string;
   generateStories?: boolean;
   js?: boolean;
+  tsConfiguration?: boolean;
   linter?: Linter;
   standaloneConfig?: boolean;
 }

packages/react-native/src/generators/storybook-configuration/schema.json

@@ -22,7 +22,12 @@
     },
     "js": {
       "type": "boolean",
-      "description": "Generate JavaScript files rather than TypeScript files.",
+      "description": "Generate JavaScript story files rather than TypeScript story files.",
+      "default": false
+    },
+    "tsConfiguration": {
+      "type": "boolean",
+      "description": "Configure your project with TypeScript. Generate main.ts and preview.ts files, instead of main.js and preview.js.",
       "default": false
     },
     "linter": {

packages/react/src/generators/storybook-configuration/schema.d.ts

@@ -6,6 +6,7 @@ export interface StorybookConfigureSchema {
   generateStories?: boolean;
   generateCypressSpecs?: boolean;
   js?: boolean;
+  tsConfiguration?: boolean;
   linter?: Linter;
   cypressDirectory?: string;
   standaloneConfig?: boolean;

packages/react/src/generators/storybook-configuration/schema.json

@@ -38,7 +38,12 @@
     },
     "js": {
       "type": "boolean",
-      "description": "Generate JavaScript files rather than TypeScript files.",
+      "description": "Generate JavaScript story files rather than TypeScript story files.",
+      "default": false
+    },
+    "tsConfiguration": {
+      "type": "boolean",
+      "description": "Configure your project with TypeScript. Generate main.ts and preview.ts files, instead of main.js and preview.js.",
       "default": false
     },
     "linter": {

packages/storybook/src/generators/configuration/configuration.spec.ts

@@ -81,6 +81,31 @@ describe('@nrwl/storybook:configuration', () => {
     ).toBeFalsy();
   });
 
+  it('should generate TypeScript Configuration files', async () => {
+    await configurationGenerator(tree, {
+      name: 'test-ui-lib',
+      uiFramework: '@storybook/angular',
+      standaloneConfig: false,
+      tsConfiguration: true,
+    });
+
+    // Root
+    expect(tree.exists('.storybook/tsconfig.json')).toBeTruthy();
+    expect(tree.exists('.storybook/main.ts')).toBeTruthy();
+    const rootStorybookTsconfigJson = readJson<TsConfig>(
+      tree,
+      '.storybook/tsconfig.json'
+    );
+    expect(rootStorybookTsconfigJson.extends).toBe('../tsconfig.base.json');
+
+    // Local
+    expect(
+      tree.exists('libs/test-ui-lib/.storybook/tsconfig.json')
+    ).toBeTruthy();
+    expect(tree.exists('libs/test-ui-lib/.storybook/main.ts')).toBeTruthy();
+    expect(tree.exists('libs/test-ui-lib/.storybook/preview.ts')).toBeTruthy();
+  });
+
   it('should extend from root tsconfig.json when no tsconfig.base.json', async () => {
     tree.rename('tsconfig.base.json', 'tsconfig.json');
 
@@ -350,4 +375,39 @@ describe('@nrwl/storybook:configuration', () => {
       readJson(tree, 'libs/test-ui-lib2/.storybook/tsconfig.json').files
     ).toMatchSnapshot();
   });
+
+  it('should generate TS config for project if root config is TS', async () => {
+    await configurationGenerator(tree, {
+      name: 'test-ui-lib',
+      uiFramework: '@storybook/angular',
+      standaloneConfig: false,
+      tsConfiguration: true,
+    });
+
+    const newContents = `module.exports = {
+  stories: [],
+  addons: ['@storybook/addon-essentials', 'new-addon'],
+};
+`;
+    // Setup a new lib
+    await libraryGenerator(tree, {
+      name: 'test-ui-lib-2',
+      standaloneConfig: false,
+    });
+
+    tree.write('.storybook/main.ts', newContents);
+    await configurationGenerator(tree, {
+      name: 'test-ui-lib-2',
+      uiFramework: '@storybook/angular',
+      standaloneConfig: false,
+    });
+
+    expect(tree.read('.storybook/main.ts', 'utf-8')).toEqual(newContents);
+    expect(tree.exists('libs/test-ui-lib-2/.storybook/main.ts')).toBeTruthy();
+    expect(
+      tree.exists('libs/test-ui-lib-2/.storybook/preview.ts')
+    ).toBeTruthy();
+    expect(tree.exists('libs/test-ui-lib-2/.storybook/main.js')).toBeFalsy();
+    expect(tree.exists('libs/test-ui-lib-2/.storybook/preview.js')).toBeFalsy();
+  });
 });

packages/storybook/src/generators/configuration/configuration.ts

@@ -39,8 +39,14 @@ export async function configurationGenerator(
   });
   tasks.push(initTask);
 
-  createRootStorybookDir(tree, schema.js);
-  createProjectStorybookDir(tree, schema.name, schema.uiFramework, schema.js);
+  createRootStorybookDir(tree, schema.js, schema.tsConfiguration);
+  createProjectStorybookDir(
+    tree,
+    schema.name,
+    schema.uiFramework,
+    schema.js,
+    schema.tsConfiguration
+  );
   configureTsProjectConfig(tree, schema);
   configureTsSolutionConfig(tree, schema);
   updateLintConfig(tree, schema);

packages/storybook/src/generators/configuration/project-files-ts/.storybook/main.ts__tmpl__

@@ -0,0 +1,28 @@
+import { rootMain } from '<%= offsetFromRoot %>../.storybook/main';
+import type { StorybookConfig, Options } from '@storybook/core-common';
+
+const config: StorybookConfig = {
+  ...rootMain,
+  <% if (useWebpack5) { %>
+  core: { ...rootMain.core, builder: 'webpack5' },
+  <% } %>
+
+  stories: [
+    ...rootMain.stories,
+    '../src/app/**/*.stories.mdx',
+    '../src/app/**/*.stories.@(js|jsx|ts|tsx)',
+  ],
+  addons: [...(rootMain.addons || []) <% if(uiFramework === '@storybook/react') { %>, '@nrwl/react/plugins/storybook' <% } %><% if(uiFramework === '@storybook/react-native') { %>, '@storybook/addon-ondevice-actions',  '@storybook/addon-ondevice-backgrounds', '@storybook/addon-ondevice-controls', '@storybook/addon-ondevice-notes'  <% } %>],
+  webpackFinal: async (config, { configType }: Options) => {
+    // apply any global webpack configs that might have been specified in .storybook/main.ts
+    if (rootMain.webpackFinal) {
+      config = await rootMain.webpackFinal(config, { configType } as Options);
+    }
+
+    // add your own webpack tweaks if needed
+
+    return config;
+  },
+};
+
+module.exports = config;

packages/storybook/src/generators/configuration/project-files-ts/.storybook/tsconfig.json__tmpl__

@@ -0,0 +1,14 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "emitDecoratorMetadata": true
+    <% if(uiFramework === '@storybook/react') { %>, "outDir": "" <% } %>
+  },
+  <% if(uiFramework === '@storybook/react') { %>"files": [
+    "<%= offsetFromRoot %>../node_modules/@nrwl/react/typings/styled-jsx.d.ts",
+    "<%= offsetFromRoot %>../node_modules/@nrwl/react/typings/cssmodule.d.ts",
+    "<%= offsetFromRoot %>../node_modules/@nrwl/react/typings/image.d.ts"
+  ],<% } %>
+  "exclude": ["../**/*.spec.ts" <% if(uiFramework === '@storybook/react') { %>, "../**/*.spec.js", "../**/*.spec.tsx", "../**/*.spec.jsx"<% } %>],
+  "include": ["../src/**/*", "*.js", "*.ts" <% if(uiFramework === '@storybook/react-native') { %>, "*.tsx"<% } %>]
+}

packages/storybook/src/generators/configuration/root-files-ts/.storybook/main.ts

@@ -0,0 +1,12 @@
+import type { StorybookConfig } from '@storybook/core-common';
+
+export const rootMain: StorybookConfig = {
+  stories: [],
+  addons: ['@storybook/addon-essentials'],
+  // webpackFinal: async (config, { configType }) => {
+  //   // Make whatever fine-grained changes you need that should apply to all storybook configs
+
+  //   // Return the altered config
+  //   return config;
+  // },
+};

packages/storybook/src/generators/configuration/root-files-ts/.storybook/tsconfig.json

@@ -0,0 +1,14 @@
+{
+  "extends": "../<%= rootTsConfigPath %>",
+  "exclude": [
+    "../**/*.spec.js",
+    "../**/*.test.js",
+    "../**/*.spec.ts",
+    "../**/*.test.ts",
+    "../**/*.spec.tsx",
+    "../**/*.test.tsx",
+    "../**/*.spec.jsx",
+    "../**/*.test.jsx"
+  ],
+  "include": ["../**/*"]
+}

packages/storybook/src/generators/configuration/schema.d.ts

@@ -9,6 +9,7 @@ export interface StorybookConfigureSchema {
   configureCypress?: boolean;
   linter?: Linter;
   js?: boolean;
+  tsConfiguration?: boolean;
   cypressDirectory?: string;
   standaloneConfig?: boolean;
   projectBuildConfig?: string;

packages/storybook/src/generators/configuration/schema.json

@@ -41,7 +41,12 @@
     },
     "js": {
       "type": "boolean",
-      "description": "Generate JavaScript files rather than TypeScript files.",
+      "description": "Generate JavaScript story files rather than TypeScript story files.",
+      "default": false
+    },
+    "tsConfiguration": {
+      "type": "boolean",
+      "description": "Configure your project with TypeScript. Generate main.ts and preview.ts files, instead of main.js and preview.js.",
       "default": false
     },
     "standaloneConfig": {

packages/storybook/src/generators/configuration/util-functions.ts

@@ -238,7 +238,11 @@ export function normalizeSchema(
   };
 }
 
-export function createRootStorybookDir(tree: Tree, js: boolean) {
+export function createRootStorybookDir(
+  tree: Tree,
+  js: boolean,
+  tsConfiguration: boolean
+) {
   if (tree.exists('.storybook')) {
     logger.warn(
       `.storybook folder already exists at root! Skipping generating files in it.`
@@ -247,7 +251,10 @@ export function createRootStorybookDir(tree: Tree, js: boolean) {
   }
   logger.debug(`adding .storybook folder to the root directory`);
 
-  const templatePath = join(__dirname, './root-files');
+  const templatePath = join(
+    __dirname,
+    tsConfiguration ? './root-files-ts' : './root-files'
+  );
   generateFiles(tree, templatePath, '', {
     rootTsConfigPath: getRootTsConfigPathInTree(tree),
   });
@@ -261,8 +268,28 @@ export function createProjectStorybookDir(
   tree: Tree,
   projectName: string,
   uiFramework: StorybookConfigureSchema['uiFramework'],
-  js: boolean
+  js: boolean,
+  tsConfiguration: boolean
 ) {
+  // Check if root main file is .ts or .js
+  if (tree.exists('.storybook/main.ts')) {
+    logger.info(
+      `The root Storybook configuration is in TypeScript, 
+      so Nx will generate TypeScript Storybook configuration files 
+      in this project's .storybook folder as well.`
+    );
+    tsConfiguration = true;
+  } else {
+    if (tree.exists('.storybook/main.js')) {
+      logger.info(
+        `The root Storybook configuration is in JavaScript, 
+        so Nx will generate JavaScript Storybook configuration files 
+        in this project's .storybook folder as well.`
+      );
+      tsConfiguration = false;
+    }
+  }
+
   const { root, projectType } = readProjectConfiguration(tree, projectName);
   const projectDirectory = projectType === 'application' ? 'app' : 'lib';
 
@@ -276,7 +303,10 @@ export function createProjectStorybookDir(
   }
 
   logger.debug(`adding .storybook folder to ${projectDirectory}`);
-  const templatePath = join(__dirname, './project-files');
+  const templatePath = join(
+    __dirname,
+    tsConfiguration ? './project-files-ts' : './project-files'
+  );
 
   generateFiles(tree, templatePath, root, {
     tmpl: '',