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webdiscus / pug-plugin

Renders Pug template to HTML or template function. Resolves source files of scripts, styles, images in Pug . Uses Pug template as entry point.
https://webdiscus.github.io/pug-plugin/hello-world
ISC License
73 stars 8 forks source link
entry entrypoint html html-webpack-plugin javascript loader plugin pug pug-loader pug-plugin render template webpack

readme


Pug Plugin for Webpack

The plugin renders Pug templates with referenced source asset files into HTML

npm node node Test codecov node

Pug template as entry point

The Pug Plugin generates static HTML or template function from Pug template containing source files of scripts, styles, images, fonts and other resources, similar to how it works in Vite. This plugin allows using a template file as an entry point.

The plugin resolves source files of assets in templates and replaces them with correct output URLs in the generated HTML. The resolved assets will be processed via Webpack plugins/loaders and placed into the output directory. You can use a relative path or Webpack alias to a source file.

A template imported in JS will be compiled into template function. You can use the template function in JS to render the template with variables in runtime on the client-side in the browser.

💡 Highlights

See the full list of features.

Note

‼️ All features and options of the html-bundler-webpack-plugin available now in the pug-plugin too.

Warning

Since the version 5.0.0, the Pug plugin is essentially the html-bundler-webpack-plugin preconfigured for using Pug templates.

Warning

Compared to the version 4.x, in the new version 5.x the source asset file can be specified in a template without the require() function. For compatibility, the require() function is still supported.

//- OLD syntax: the path is relative to the partial file or can be as the webpack alias
link(href=require("./style.scss") rel="stylesheet")
//- NEW syntax: the path is relative to the entry file or can be as the webpack alias
link(href="https://github.com/webdiscus/pug-plugin/blob/master/style.scss" rel="stylesheet")

See the full list of the BREAKING CHANGES in v5.

📋 Table of Contents

⚙️ Pug Plugin options

📜 History of Pug Plugin

Install and Quick start

Install the pug-plugin:

npm install pug-plugin --save-dev

Install additional packages for styles:

npm install css-loader sass sass-loader --save-dev

For example, there is the Pug template with source asset files ./src/views/index.pug:

html
  head
    //- relative path to SCSS source file
    link(href="https://github.com/webdiscus/pug-plugin/blob/master/./scss/style.scss" rel="stylesheet")
    //- relative path to TypeScript source file
    script(src="https://github.com/webdiscus/pug-plugin/raw/master/./app/main.js" defer="defer")
  body
    h1 Hello World!
    //- relative path to image source file
    img(src="https://github.com/webdiscus/pug-plugin/raw/master/./assets/images/picture1.png")
    //- Webpack alias as path (src/assets/images/) to image source file
    img(src="https://github.com/webdiscus/pug-plugin/raw/master/@images/picture2.png")

The minimal webpack config:

const PugPlugin = require('PugPlugin');

module.exports = {
  plugins: [
    new PugPlugin({
      entry: {
        // define many page templates here
        index: 'src/views/index.pug', // => dist/index.html
      },
      js: {
        // JS output filename
        filename: 'js/[name].[contenthash:8].js',
      },
      css: {
        // CSS output filename
        filename: 'css/[name].[contenthash:8].css',
      },
    }),
  ],
  module: {
    rules: [
      {
        test: /\.(s?css|sass)$/,
        use: ['css-loader', 'sass-loader'],
      },
      {
        test: /\.(ico|png|jp?g|webp|svg)$/,
        type: 'asset/resource',
        generator: {
          filename: 'img/[name].[hash:8][ext][query]',
        },
      },
    ],
  },
};

Warning

No additional pug or html loaders required.

The generated HTML contains URLs of the output filenames:

<html>
  <head>
    <link href="https://github.com/webdiscus/pug-plugin/blob/master/css/style.05e4dd86.css" rel="stylesheet" />
    <script src="https://github.com/webdiscus/pug-plugin/raw/master/js/main.f4b855d8.js" defer="defer"></script>
  </head>
  <body>
    <h1>Hello World!</h1>
    <img src="https://github.com/webdiscus/pug-plugin/raw/master/img/picture1.58b43bd8.png" />
    <img src="https://github.com/webdiscus/pug-plugin/raw/master/img/picture2.bd858b43.png" />
  </body>
</html>

Pug Plugin options

The Pug plugin has all the options of the HTML Bundler Plugin, plus a few options specific to Pug plugin.

pretty

Type: 'auto'|boolean|Object Default: false

The Pug compiler generate minimized HTML. For formatting generated HTML is used the js-beautify with the following default options:

{
  html: {
    indent_size: 2,
    end_with_newline: true,
    indent_inner_html: true,
    preserve_newlines: true,
    max_preserve_newlines: 0,
    wrap_line_length: 120,
    extra_liners: [],
    space_before_conditional: true,
    js: {
      end_with_newline: false,
      preserve_newlines: true,
      max_preserve_newlines: 2,
      space_after_anon_function: true,
    },
    css: {
      end_with_newline: false,
      preserve_newlines: false,
      newline_between_rules: false,
    },
  },
}

Possible values:

prettyOptions

Type: Object Default: null

When the pretty option is set to auto or true, you can configure minification options using the prettyOptions.

History of Pug Plugin

Why the Pug Plugin since v5.0 based on html-bundler-webpack-plugin?

2021\ The history of the creation of the pug-plugin began back in October 2021. Then, at the end of 2021, I created the @webdiscus/pug-loader that had all the features of the original pug-loader.

2022\ Using, then without an alternative, html-webpack-plugin caused me pain and suffering to configure webpack for rendering Pug templates containing various assets. At the beginning of 2022, I started creating the pug-plugin as a complete replacement for the html-webpack-plugin and many other "crutches". During of the year, the pug-plugin has gained a lot of useful features and was able to replace the html-webpack-plugin, mini-css-extract-plugin and many other plugins and loaders.

2023\ Based on the pug-plugin code, I decided to create a universal html-bundler-webpack-plugin that would support all the most popular template engines, such as Eta, EJS, Handlebars, Nunjucks, Pug, TwigJS, and would be extendable for other template engines, e.g., LiquidJS. During 2023, this plugin has gained even more useful features and absorbed all the functionality of the pug-plugin and the @webdiscus/pug-loader.

2024\ At the beginning of 2024, the pug-plugin completely switched to the universal code html-bundler-webpack-plugin. Starting from version 5.0, the pug-plugin is the html-bundler-webpack-plugin pre-configured for Pug templates with the pre-installed pug package.

The config of pug-plugin >= v5.0:

const PugPlugin = require('pug-plugin');

module.exports = {
  plugins: [
    new PugPlugin({
      entry: {
        index: 'src/views/home.pug',
      },
    }),
  ],
};

is the same as:

const HtmlBundlerPlugin = require('html-bundler-webpack-plugin');

module.exports = {
  plugins: [
    new HtmlBundlerPlugin({
      entry: {
        index: 'src/views/home.pug',
      },
      preprocessor: 'pug', // <= enable using Pug templating engine
    }),
  ],
};

The pug-plugin's heart now lives in the html-bundler-webpack-plugin.

@webdiscus/pug-loader -> pug-plugin -> html-bundler-webpack-plugin -> pug-plugin

Also See

License

ISC