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rollup.config.js
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rollup.config.js
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import resolve from "rollup-plugin-node-resolve";
import babel from "rollup-plugin-babel";
import commonjs from "rollup-plugin-commonjs";
import json from "rollup-plugin-json";
import { uglify } from "rollup-plugin-uglify";
import replace from "rollup-plugin-replace";
import pkg from "./package.json";
const makeExternalPredicate = (externalArr) => {
if (externalArr.length === 0) {
return () => false;
}
const pattern = new RegExp(`^(${externalArr.join("|")})($|/)`);
return (id) => pattern.test(id);
};
const minify = process.env.MINIFY;
const format = process.env.FORMAT;
const es = format === "es";
const umd = format === "umd";
const cjs = format === "cjs";
let output;
if (es) {
output = { file: `dist/react-final-form.es.js`, format: "es" };
} else if (umd) {
if (minify) {
output = {
file: `dist/react-final-form.umd.min.js`,
format: "umd",
};
} else {
output = { file: `dist/react-final-form.umd.js`, format: "umd" };
}
} else if (cjs) {
output = { file: `dist/react-final-form.cjs.js`, format: "cjs" };
} else if (format) {
throw new Error(`invalid format specified: "${format}".`);
} else {
throw new Error("no format specified. --environment FORMAT:xxx");
}
export default {
input: "src/index.js",
output: Object.assign(
{
name: "react-final-form",
exports: "named",
globals: {
react: "React",
"final-form": "FinalForm",
},
},
output,
),
external: makeExternalPredicate(
umd
? Object.keys(pkg.peerDependencies || {})
: [
...Object.keys(pkg.dependencies || {}),
...Object.keys(pkg.peerDependencies || {}),
],
),
plugins: [
resolve({ mainFields: ["jsnext:main"] }),
json(),
commonjs({ include: "node_modules/**" }),
babel({
exclude: "node_modules/**",
plugins: [["@babel/plugin-transform-runtime", { useESModules: !cjs }]],
runtimeHelpers: true,
}),
umd
? replace({
"process.env.NODE_ENV": JSON.stringify(
minify ? "production" : "development",
),
})
: null,
minify ? uglify() : null,
].filter(Boolean),
};