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rollup.config.js
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rollup.config.js
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import babel from "rollup-plugin-babel";
import { terser } from "rollup-plugin-terser";
import resolve from "@rollup/plugin-node-resolve";
import commonjs from "@rollup/plugin-commonjs";
import inject from "@rollup/plugin-inject";
import { version, dependencies, license } from "./package.json";
export const polyfills = {
Promise: "promise-polyfill",
Set: "core-js-pure/features/set",
"Object.assign": "core-js-pure/features/object/assign",
};
const input = "node_modules/@ideal-postcodes/postcode-lookup/esm/index.js";
const banner = `/**
* @license
* Ideal Postcodes <https://ideal-postcodes.co.uk>
* Copyright IDDQD Limited
* Postcode Lookup Bundled ${version}
* Built on Postcode Lookup ${dependencies["@ideal-postcodes/postcode-lookup"]}
* ${license} Licence
*/`;
// Configure terser to ignore build info banner
const terserConfig = {
output: {
comments: (_, { value, type }) => {
if (type === "comment2") return /@license/i.test(value);
},
},
};
/**
* Whitelist files processed by Babel
*/
const include = [
"node_modules/@ideal-postcodes/core-interface/esm/**",
"node_modules/@ideal-postcodes/core-axios/esm/**",
"node_modules/@ideal-postcodes/postcode-lookup/esm/**",
"node_modules/@ideal-postcodes/jsutil/esm/**",
"node_modules/capitalise-post-town/dist/**",
"node_modules/core-js-pure/**/*",
];
const context = "window";
const sourceMap = false;
export default [
/**
* ESM build targeting minimum browser versions that allow [ES6 Modules](https://caniuse.com/#feat=es6-module)
*/
{
input,
context,
output: {
file: "./dist/postcode-lookup.esm.js",
banner,
format: "esm",
exports: "named",
},
plugins: [
resolve({
preferBuiltins: true,
dedupe: ["@ideal-postcodes/jsutil"],
mainFields: ["browser", "module", "main"],
browser: true,
}),
commonjs(),
babel({
babelrc: false,
include,
sourceMap,
presets: [
[
"@babel/preset-env",
{
targets: {
edge: "16",
firefox: "60",
chrome: "61",
safari: "11",
},
},
],
],
}),
terser(terserConfig),
],
},
/**
* UMD build that targets ie11 as base
*/
{
input,
context,
output: {
file: "./dist/postcode-lookup.js",
banner,
format: "umd",
extend: true,
name: "IdealPostcodes",
exports: "named",
},
plugins: [
resolve({
preferBuiltins: true,
dedupe: ["@ideal-postcodes/jsutil"],
mainFields: ["browser", "module", "main"],
browser: true,
}),
commonjs(),
inject(polyfills),
babel({
babelrc: false,
include,
sourceMap,
presets: [["@babel/preset-env", { targets: { ie: "11" } }]],
}),
terser(terserConfig),
],
},
];