webpack.config.js

import path from 'path';
import { fileURLToPath } from 'url';
import CopyPlugin from 'copy-webpack-plugin';
import HtmlWebpackPlugin from 'html-webpack-plugin';
import webpack from 'webpack';

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

export default {
    entry: {
        background: './extension/js/background.js',
        contentScript: './extension/js/contentScript.js',
        popup: './extension/js/popup.js',
        settings: './extension/js/settings.js',
    },
    output: {
        path: path.resolve(__dirname, 'dist'),
        filename: 'js/[name].js',
        clean: true,
    },
    module: {
        rules: [
            {
                test: /\.js$/,
                exclude: /node_modules/,
                use: {
                    loader: 'babel-loader',
                    options: {
                        presets: [['@babel/preset-env', { "targets": "defaults" }]],
                    },
                },
            },
            {
                test: /\.css$/,
                use: ['style-loader', 'css-loader'],
            },
        ],
    },
    plugins: [
        new CopyPlugin({
            patterns: [
                { from: 'extension/manifest.json', to: 'manifest.json' },
                { from: 'extension/assets', to: 'assets' },
            ],
        }),
        new HtmlWebpackPlugin({
            template: './extension/html/popup.html',
            filename: 'html/popup.html',
            chunks: ['popup'],
        }),
        new HtmlWebpackPlugin({
            template: './extension/html/settings.html',
            filename: 'html/settings.html',
            chunks: ['settings'],
        }),
        new webpack.ProvidePlugin({
            process: 'process/browser',
            Buffer: ['buffer', 'Buffer'],
        }),
    ],
    resolve: {
        fallback: {
            fs: false,
            path: 'path-browserify',
            buffer: 'buffer/',
            process: 'process/browser',
        },
    },
};