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# Webpack 5 Boilerplate Template # 73k.us custom rainbow error pages (40x/50x)
![Maintenance](https://img.shields.io/maintenance/yes/2021?logo=github) Based off [frontend-webpack-boilerplate](https://github.com/WeAreAthlon/frontend-webpack-boilerplate) with TailwindCSS added.
![webpack-current](https://img.shields.io/badge/webpack-v5.44.0-green?logo=webpack)
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[![GitHub License](https://img.shields.io/github/license/WeAreAthlon/frontend-webpack-boilerplate)](https://github.com/WeAreAthlon/frontend-webpack-boilerplate/blob/master/LICENSE)
![Front-end Webpack Boilerplate](https://repository-images.githubusercontent.com/96102257/4be7b600-61f1-11e9-9ebf-67b17d5ba125) Builds html & css that can be used as custom error pages with, e.g., nginx.
## Demo ## NOTE
* [Demo page demonstrating building - SASS, JavaScript, Images, Fonts, HTML](https://weareathlon.github.io/frontend-webpack-boilerplate/) After production build, optionally remove the app.js script tags from the built files, just to optimize things further.
Table of Contents
=================
* [Webpack 5 Boilerplate Template](#webpack-5-boilerplate-template)
* [Demo](#demo)
* [Features](#features)
* [Requirements](#requirements)
* [Setup](#setup)
* [Installation](#installation)
* [Define Package Metadata](#define-package-metadata)
* [Configuration](#configuration)
* [Environment Configuration](#environment-configuration)
* [Additional webpack configuration](#additional-webpack-configuration)
* [Development](#development)
* [Assets Source](#assets-source)
* [Build Assets](#build-assets)
* [One time build assets for development](#one-time-build-assets-for-development)
* [Build assets and enable source files watcher](#build-assets-and-enable-source-files-watcher)
* [Start a development server - reloading automatically after each file change.](#start-a-development-server---reloading-automatically-after-each-file-change)
* [Production](#production)
* [Build Assets](#build-assets-1)
* [Get Built Assets](#get-built-assets)
* [Run Code Style Linters](#run-code-style-linters)
* [SASS](#sass)
* [JavaScript](#javascript)
* [Additional Tools](#additional-tools)
* [Run Assets Bundle Analyzer](#run-assets-bundle-analyzer)
* [Continuous Integration](#continuous-integration)
## Features
* **Simple setup** instructions
* Start development of a project right away with **simple**, **configured**, **linter enabled**, **browser synced** asset files.
* Configuration per **environment**
* `development` - [`sourcemaps`](https://webpack.js.org/configuration/devtool/), [`browser synced developmentment server`](https://webpack.js.org/configuration/dev-server/)
* `production` - [`minification`](https://webpack.js.org/plugins/terser-webpack-plugin/), [`sourcemaps`](https://webpack.js.org/configuration/devtool/)
* Configurable **browsers versions support**. It uses [`browserslist`](https://github.com/browserslist/browserslist#full-list) - just specify the browsers you want to support in the `package.json` file for `browserslist`:
```js
"browserslist": [
"last 2 versions",
"> 5%"
]
```
* The built CSS / JavaScript files will respect the **configured supported browser versions** using the following tools:
* [`autoprefixer`](https://github.com/postcss/autoprefixer) - automatically adds vendor prefixes to CSS rules
* [`babel-preset-env`](https://babeljs.io/docs/en/babel-preset-env) - smart preset that allows you to use the latest JavaScript without needing to micromanage which syntax transforms (*and optionally, browser polyfills*) are needed by your target environment(s).
* Demo project files to be used as a reference and **example demo** building of:
* *JavaScript*
* *SASS / PostCSS*
* *HTML* templates
* *Images* (*CSS backgrounds and image tags*)
* *Fonts*
* Support for **assets optimization** for production environment with ability to configure:
* **Code Minification** of *JavaScript* and *CSS* processed files.
* **Optimize Assets Loading** - inline and embed **images** / **fonts** files having file size below a *configurable* threshold value.
* **Images Optimisation** - optimize `jpeg`, `jpg`, `png`, `gif`, `svg` filesize and loading type via [`imagemin`](https://github.com/imagemin/imagemin). Plugin and Loader for webpack to optimize (*compress*) all images using `imagemin`. Do not worry about size of images, now they are always optimized/compressed.
* Support for **source code syntax style and formatting linters** that analyze source code to flag any programming errors, bugs, stylistic errors or suspicious constructs:
* **SASS/PostCSS syntax cheker** - you can change or add additional rules in `.sasslintrc` file. Configuration options can be found on [`sass-lint`](https://github.com/sasstools/sass-lint/blob/master/lib/config/sass-lint.yml) documentation.
* **JavaScript syntax checker** - following the `airbnb` style, you can review and configure the rules in `.eslintrc` file. Configuration options can be found on [`eslint`](https://eslint.org/docs/user-guide/configuring) documentation.
* Latest [Webpack 5](https://github.com/webpack/webpack) - *JavaScript* module bundler.
* Latest [SASS/PostCSS](https://github.com/sass/sass) compiler based on Dart `sass`.
* Latest [Babel 7](https://github.com/babel/babel) (`@babel/core`) - JavaScript compiler - _Use next generation JavaScript, today._
* Integration with [Travis CI](https://travis-ci.com/)
* [Demo deployment available to GitHub pages](https://weareathlon.github.io/frontend-webpack-boilerplate/)
* Configured and ready to use **Webpack Dev Server** plugin for faster local development - [`webpack-dev-server`](https://webpack.js.org/configuration/dev-server/)
* Integration with [Webpack Bundle Analyzer](https://www.npmjs.com/package/webpack-bundle-analyzer) - _Visualize size of webpack output files with an interactive zoomable treemap._
## Requirements
* `node` : `^12 || >=14`
* `npm`
# Setup
## Installation
1. Choose and download the latest template release from [List of Releases](https://github.com/WeAreAthlon/frontend-webpack-boilerplate/releases).
2. Extract the release archive to a new directory, rename it to your project name and browse the directory.
3. Install all dependencies using `npm` *clean install* command.
```sh
$ npm ci
```
> More on the clean install npm command can be read here [`npm ci`](https://docs.npmjs.com/cli/ci.html)
> You can still use `npm install` in cases the `npm ci` raises system error due to specific platform incompatibilities.
## Define Package Metadata
* Amend `package.json` file and optionally specify:
* `name` - Name of your project. A name can be optionally prefixed by a scope, e.g. `@myorg/mypackage`.
* `version` - Specify and maintain a version number indicator for your project code.
* `author` - Your organisation or just yourself. You can also specify [`contributors`](https://docs.npmjs.com/files/package.json#people-fields-author-contributors).
* `description` - Short description of your project.
* `keywords` - Put keywords in it. Its an array of strings.
* `repository` - Specify the place where your code lives.
* `license` - Announce your code license, figure out the license from [Choose an Open Source License](https://choosealicense.com) .
* `browserslist` - Specify the supported browsers versions - you can refer to [full list](https://github.com/browserslist/browserslist#full-list) of availalbe options.
# Configuration
## Environment Configuration
* Edit the [`configuration/environment.js`](configuration/environment.js) if you want to specify:
* **`server`**: configure development server, specify `host`, `port`. Refer to the full development server configuration options for [`webpack-dev-server`](https://webpack.js.org/configuration/dev-server/).
* **`limits`**: configure file size thresholds for assets optimizations.
* Image/Font files size in bytes. Below this value the image file will be served as Data URL (_inline base64_).
* **`paths`**: `src` or `dist` directories names and file system location.
## Additional `webpack` configuration
You can additionally configure `webpack` for specific environment:
* `development` - [`configuration/webpack.dev.config.js`](configuration/webpack.dev.config.js)
* `production` - [`configuration/webpack.prod.config.js`](configuration/webpack.prod.config.js)
* Note that if you prefer to build and deploy [`sourcemap`](https://webpack.js.org/configuration/devtool/#production) files:
> You should configure your server to disallow access to the Source Map file for normal users!
# Development
## Assets Source
* **SASS/PostCSS** files are located under `src/scss/`
* **JavaScript** files with support of latest ECMAScript _ES6 / ECMAScript 2016(ES7)/ etc_ files are located under `src/js/`
* **Image** files are located under `src/images/`
* **Font** files are located under `src/fonts/`
* **HTML** files are located under `src/`
* It will **automatically** build **all HTML files** placed under `src/` directory, no need to manually configure each template anymore!
## Build Assets
### One time build assets for development
```sh
$ npm run build
```
### Build assets and enable source files watcher
```sh
$ npm run watch
```
This command is suitable if you develop with external web server.
> **Note:** File watching does not work with *NFS* (*Windows*) and virtual machines under *VirtualBox*. Extend the configuration in such cases by:
```js
module.exports = {
//...
watchOptions: {
poll: 1000 // Check for changes every second
}
};
```
### Start a development server - reloading automatically after each file change.
```sh
$ npm run dev
```
# Production
## Build Assets
Optimize assets for production by:
```sh
$ npm run production
```
## Get Built Assets
* _CSS_ files are located under `/dist/css/`
* _JavaScript_ files with support of _ES6 / ECMAScript 2016(ES7)_ files are located under `/dist/js/`
* _Images_ are located under `/dist/images/`
* Images part of the _design_ (_usually referenced in the CSS_) are located under `/dist/images/design/`
* Images part of the _content_ (_usually referenced via `<img>` tags_) are located under `/dist/images/content/`
* _Fonts_ are located under `/dist/fonts/`
* _HTML_ files are located under `/dist/`
# Run Code Style Linters
## SASS
```sh
$ npm run lint:sass
```
## JavaScript
```sh
$ npm run lint:js
```
# Additional Tools
## Run Assets Bundle Analyzer
```sh
$ npm run stats
```
> This will open the visualisaion on the default configuraiton URL `localhost:8888`, you can change this URL or port following the [package](https://github.com/webpack-contrib/webpack-bundle-analyzer#options-for-cli) documentation.
## Continuous Integration
This boilerplate template contains integration with [Travis CI](https://travis-ci.org/). The build system runs all linting scripts and deploys production optimized pages to _GitHub_ pages upon push to the `master` branch. However, note that this deployment flow only works for _Project Pages_, as User and Organization pages [only support the master branch flow](https://help.github.com/articles/user-organization-and-project-pages/).
For more information on how to set up alternative deployment processes, check out the [Travis CI documentation on deployment](https://docs.travis-ci.com/user/deployment). The service can deploy to dozens of cloud providers, including Heroku, AWS, and Firebase.