npm package: @jenssimon/webpack-config-sfcc
Description: A shareable Webpack configuration for SFCC projects
Author: Jens Simon
Latest version: 0.11.16

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# @jenssimon/webpack-config-sfcc

> [!WARNING]
> **DEPRECATION:**
> Webpack was a good tool for that job.
> But with tools like [Vite](https://vite.dev/) available for a long time it's time for a change.

> A shareable Webpack configuration for SFCC projects

## General

This is a battle-proof Webpack configuration used and matured in multiple Salesforce Commerce Cloud storefront projects. To make these configurations shareable and maintainable this package was created.

## Table of Contents

- [@jenssimon/webpack-config-sfcc](#jenssimonwebpack-config-sfcc)
  - [General](#general)
  - [Table of Contents](#table-of-contents)
  - [Features](#features)
  - [Installation](#installation)
  - [Webpack configuration files](#webpack-configuration-files)
    - [`webpack.config.js`](#webpackconfigjs)
    - [`webpack.config.prod.js`](#webpackconfigprodjs)
    - [`webpack.cartridges.js`](#webpackcartridgesjs)
  - [Configuration](#configuration)
    - [dirname](#dirname)
    - [resolver](#resolver)
    - [entryPoint](#entrypoint)
    - [pathPrefix](#pathprefix)
    - [sourceMap](#sourcemap)
    - [devServer](#devserver)
    - [publicPath](#publicpath)
    - [hmrPath](#hmrpath)
    - [production](#production)
    - [preCSSExtractLoaders](#precssextractloaders)
    - [additionalPlugins](#additionalplugins)
    - [additionalEntries](#additionalentries)
    - [additionalPostCSSPlugins](#additionalpostcssplugins)
    - [additionalDefine](#additionaldefine)
    - [noLint](#nolint)
    - [onlyCartridge](#onlycartridge)
    - [projectSpecificRules](#projectspecificrules)
    - [alias](#alias)
    - [aliasCartridges](#aliascartridges)
    - [swcTarget](#swctarget)
    - [transformNodeModules](#transformnodemodules)
    - [allowCircularDependendies](#allowcirculardependendies)
  - [License](#license)

## Features

- Webpack 5
- JavaScript and/or TypeScript
  - Usage of modern JavaScript/TypeScript
  - Optional support for polyfills
  - Transpilation using [swc](https://swc.rs/)
  - Configuration of transpilation target via [Browserslist](https://github.com/browserslist/browserslist#readme)
- SCSS and/or CSS
  - Compiles SCSS using [Dart Sass](https://sass-lang.com/dart-sass)
  - Uses [PostCSS](https://postcss.org/)
    - [Autoprefixer](https://github.com/postcss/autoprefixer#readme)
    - [postcss-preset-env](https://preset-env.cssdb.org/)
    - Configuration via [Browserslist](https://github.com/browserslist/browserslist#readme)
    - Extraction of CSS bundles using [mini-css-extract-plugin](https://github.com/webpack-contrib/mini-css-extract-plugin#readme)
- Source Maps
- Linting using [ESLint](https://eslint.org/) via [eslint-webpack-plugin](https://github.com/webpack-contrib/eslint-webpack-plugin#readme)
- Check for case-sensitive file names via [case-sensitive-paths-webpack-plugin](https://github.com/Urthen/case-sensitive-paths-webpack-plugin#readme) - Important for Windows and macOS environemnts
- Prevent circular module dependencies via [circular-dependency-plugin](https://github.com/aackerman/circular-dependency-plugin#readme)
- Dev Server support
- Support for Hot Module Replacement

## Installation

1. Install the package:

    ```sh
    yarn add @jenssimon/webpack-config-sfcc --dev
    ```

2. Create the development webpack configuration `webpack.config.js`
3. Create the production webpack configuration `webpack.config.prod.js`

## Webpack configuration files

### `webpack.config.js`

Add a `webpack.config.js` file in your project root. This is the configuration for the development environment.

```javascript
import { fileURLToPath } from 'node:url'
import path from 'node:path'
import { createRequire } from 'node:module'

import { generateConfiguration, DEFAULT_DEVELOPMENT } from '@jenssimon/webpack-config-sfcc'
import cartridges from './webpack.cartridges.js'

const require = createRequire(import.meta.url)
const filename = fileURLToPath(import.meta.url)
const dirname = path.dirname(filename)

export default () => Object.entries(cartridges).map(([cartridge, config]) => generateConfiguration(cartridge, {
  dirname,
  resolver: require.resolve,
  ...DEFAULT_DEVELOPMENT,
  ...config,
}))
```

### `webpack.config.prod.js`

Add a `webpack.config.prod.js` file in your project root. This is the configuration for the production environment.

```javascript
/**
 * Webpack configuration for production build.
 */
import { generateConfiguration, DEFAULT_PRODUCTION } from '@jenssimon/webpack-config-sfcc'
import cartridges from './webpack.cartridges.js'

export default (env) => Object.entries(cartridges).map(([cartridge, config]) => generateConfiguration(cartridge, {
  ...DEFAULT_PRODUCTION,
  ...config,
  env,
}))
```

### `webpack.cartridges.js`

Add a `webpack.cartridges.js` file in yout project root. This files contains specific additional configuration for each storefront cartridge within your project.

```javascript
export default {
  app_storefront_foo: {
    // special configuration for `app_storefront_foo`
  },
  app_storefront_bar: {
    // special configuration for `app_storefront_bar`
  },
}
```

Those configurations can contain additional Webpack rules, aliases, ... For more details see the configuration section.

## Configuration

### dirname

The `__dirname` value of the outside `webpack.config.js` file.
Used to resolve paths from the package that consumes the generated Webpack configuration.

Required

Just add

```javascript
import { fileURLToPath } from 'node:url'
import path from 'node:path'

const filename = fileURLToPath(import.meta.url)
const dirname = path.dirname(filename)

// ...

{
  dirname,
  // ...
}
```

### resolver

The `require.resolve` function of the package that consumes the generated Webpack configuration.
Used to resolve modules.

Required

Just add

```javascript
import { createRequire } from 'node:module'

const require = createRequire(import.meta.url)

// ...

{
  resolver: require.resolve,
  // ...
}
```

### entryPoint

The entrypoint of the application.

Default: `index.js`

### pathPrefix

The path prefix for the generated bundles.

Default: `undefined`

This is used to bundle files to another subfolder during the production build (e.g. `dist/`)..

### sourceMap

Generate source maps for `.js` and `.css` files.

Default: `false`

### devServer

Build Webpack config for usage with dev server.

Default: `false`

### publicPath

TODO

### hmrPath

TODO

### production

Use production mode.

Default: `false`

### preCSSExtractLoaders

Loaders executed before `mini-css-extract-plugin` loader.

Default: `[]`

TODO

### additionalPlugins

TODO

### additionalEntries

Additional entry point configurations.

### additionalPostCSSPlugins

TODO

### additionalDefine

TODO

### noLint

Disable linting.
Useful when linting was already done before Webpack build.

Default: `false`

### onlyCartridge

TODO

### projectSpecificRules

Additional Webpack rules (see https://webpack.js.org/configuration/module/#modulerules) used for your cartridge.

Default: `[]`

### alias

Aliases

Default: `{}`

### aliasCartridges

Cartridges that needs an alias configuration.

Example:

```javascript
aliasCartridges: [
  { alias: 'foo', cartridge: 'app_foo' },
],
```

This configuration creates the aliases `foo` (for JS) and `foo-css` (for CSS/SCSS).

You can skip the generation of the `-css` alias using the `noStyle` flag:

```javascript
aliasCartridges: [
  { alias: 'bar', cartridge: 'app_bar', noStyle: true },
],
```

Aliases for `app_storefront_base` will be created by default.

### swcTarget

The target environment for swc (see https://swc.rs/docs/configuring-swc#jsctarget).

Default: `"es2019"`

### transformNodeModules

Some packages from `node_modules` need to be transpiled. You can specify a list of packages using this option.

Default: `[]`

Example:

```javascript
transformNodeModules: [
  'lit',
  'lit-element',
  'lit-html',
],
```

### allowCircularDependendies

Allow circular dependencies.

Default: `false`

## License

MIT © 2023 [Jens Simon](https://github.com/jenssimon)

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