rollup-plugin-import-contents

A Rollup plugin to import content as strings like CSS, LESS and Fonts.

Usage

rollup.config.mjs

import importContents from "rollup-plugin-import-contents";

export default {
    input: "index.js",
    output: { file: "dist/index.js", format: "esm" },
    plugins: [ 
        importContents({
            rules: [
                {
                    test: /\.(woff|woff2|eot|ttf|otf)$/i,
                    mode: "base64"
                },
                {
                    test: /\.(png|jpg|gif)$/i,
                    mode: "base64"
                },
                {
                    test: /\.less$/i,
                    mode: "less"
                }
            ]
        }) 
    ]
};

This plugins supports require forms of importing files.

const css = require("./styles.css"); /* creates a string that contains the content of the CSS file */
const parsedCss = require("./styles.less"); /* creates a string that contains the CSS code parsed from the LESS file */
const font = require("./font.woff"); /* creates a string with the content of the font in base64 data URL */

Options

include

Type: array or string Default: []

A single file, or array of files to include when minifying.

exclude

Type: array or string Default: []

A single file, or array of files to exclude when minifying.

rules

Type: Array Default: null

A collection of rules for processing imported files. Each element is defined as

{
    test: RegularExpression,
    mode: "plain" | "base64" | "css" | "less" | "sass",
    minimize: boolean
}

The option minimize works only for css, less and sass.

Why

With Web Component frameworks, its useful to be able to import the css for components in a variety of ways. Other solutions for Rollup either lack features or are large and bloated with extra features that some users may not need such as SASS or LESS support.

Reporting Issues

If you are having trouble getting something to work with this plugin or run into any problems, you can create a new Issue.

If this plugin does not fit your needs or is missing a feature you would like to see, let us know! We would greatly appreciate your feedback on it.

License

rollup-plugin-import-contents is licensed under the terms of the MIT license.