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rollup.config.js
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rollup.config.js
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import path from "path";
import babel from "@rollup/plugin-babel";
import resolve from "@rollup/plugin-node-resolve";
import typescript from "@rollup/plugin-typescript";
import esbuild from "rollup-plugin-esbuild";
import { terser } from "rollup-plugin-terser";
// eslint-disable-next-line @typescript-eslint/no-var-requires, no-undef
const createBabelConfig = require("./babel.config");
const extensions = [".ts", ".tsx"];
// eslint-disable-next-line no-undef
const { root } = path.parse(process.cwd());
const external = (id) => !id.startsWith(".") && !id.startsWith(root);
const getBabelOptions = (targets) => ({
...createBabelConfig({ env: (env) => env === "build" }, targets),
extensions,
comments: false,
babelHelpers: "bundled",
});
const getEsbuild = (target, env = "development") => {
return esbuild({
minify: env === "production",
target,
tsconfig: path.resolve("./tsconfig.json"),
});
};
const createDeclarationConfig = (input, outDir) => ({
input,
output: { dir: outDir },
external,
plugins: [
typescript({ declaration: true, emitDeclarationOnly: true, outDir }),
],
});
const createESMConfig = (input, output) => ({
input,
output: [
{ file: `${output}.js`, format: "esm" },
{ file: `${output}.mjs`, format: "esm" },
],
external,
plugins: [resolve({ extensions }), getEsbuild("node12")],
});
const createCommonJSConfig = (input, output) => ({
input,
output: { file: `${output}.js`, format: "cjs", exports: "named" },
external,
plugins: [resolve({ extensions }), babel(getBabelOptions({ ie: 11 }))],
});
function createUMDConfig(input, output, env) {
return {
input,
output: {
file: `${output}.${env}.js`,
format: "umd",
exports: "named",
name: "timsy",
globals: { react: "react" },
},
external,
plugins: [
resolve({ extensions }),
babel(getBabelOptions({ ie: 11 })),
...(env === "production" ? [terser()] : []),
],
};
}
function createSystemConfig(input, output, env) {
return {
input,
output: {
file: `${output}.${env}.js`,
format: "system",
exports: "named",
},
external,
plugins: [resolve({ extensions }), getEsbuild("node12", env)],
};
}
// eslint-disable-next-line import/no-anonymous-default-export
export default function (args) {
let c = Object.keys(args).find((key) => key.startsWith("config-"));
if (c) {
c = c.slice("config-".length).replace(/_/g, "/");
} else {
c = "index";
}
return [
...(c === "index" ? [createDeclarationConfig(`src/${c}.ts`, "dist")] : []),
createCommonJSConfig(`src/${c}.ts`, `dist/${c}`),
createESMConfig(`src/${c}.ts`, `dist/esm/${c}`),
createUMDConfig(`src/${c}.ts`, `dist/umd/${c}`, "development"),
createUMDConfig(`src/${c}.ts`, `dist/umd/${c}`, "production"),
createSystemConfig(`src/${c}.ts`, `dist/system/${c}`, "development"),
createSystemConfig(`src/${c}.ts`, `dist/system/${c}`, "production"),
];
}