rollup.config.js

/**
 * Copyright 2019 Google Inc. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *     http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import terser from "@rollup/plugin-terser";
import commonjs from "@rollup/plugin-commonjs";

import indexGenerator from "./rollup-plugins/index-generator.js";
import sizePrinter from "./rollup-plugins/size-printer.js";
import exportInPlace from "./rollup-plugins/export-in-place.js";

export default ["esm", "cjs", "umd"].map((format) => ({
	input: `./src/index.js`,
	output: {
		file: `dist/${format}/index.${format === "cjs" ? "cjs" : "js"}`,
		format,
		name: "wasmFeatureDetect",
		esModule: false,
		generatedCode: {
			constBindings: true,
		},
	},
	plugins: [
		commonjs({
			include: ["binaryen"],
		}),
		indexGenerator({
			indexPath: "./src/index.js",
			format,
		}),
		...(process.env.NO_MINIFY
			? []
			: [
					terser({
						ecma: 8,
						compress: true,
						mangle: {
							toplevel: true,
						},
					}),
					...(format === "esm" ? [exportInPlace()] : []),
				]),
		sizePrinter(),
	],
}));