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rollup.config.mjs
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rollup.config.mjs
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import process from "node:process";
import path from "path";
import { readFile } from "fs/promises";
// - Plugins
import peerDepsExternal from "rollup-plugin-peer-deps-external";
import resolve from "@rollup/plugin-node-resolve";
import commonjs from "@rollup/plugin-commonjs";
import typescript from "rollup-plugin-typescript2";
import json from "@rollup/plugin-json";
import terser from "@rollup/plugin-terser";
import dts from "rollup-plugin-dts";
// - Paths
const PACKAGE_ROOT = process.cwd();
const WORKSPACE_ROOT = path.resolve(PACKAGE_ROOT, "../../");
const PACKAGE_JSON_PATH = path.resolve(PACKAGE_ROOT, "package.json");
const TS_CONFIG_PATH = path.resolve(PACKAGE_ROOT, "tsconfig.json");
const DTS_DIR_PATH = path.resolve(PACKAGE_ROOT, "dist", "dts");
// - Data
const packageJson = JSON.parse(
await readFile(new URL(PACKAGE_JSON_PATH, import.meta.url))
);
// - Output
console.log([
["Generating project:", packageJson.name],
"With following paths:",
["Workspace:", WORKSPACE_ROOT],
["Package:", PACKAGE_ROOT],
["package.json:", PACKAGE_JSON_PATH],
["tsconfig.json:", TS_CONFIG_PATH],
["Declarations:", DTS_DIR_PATH],
]);
// - Configs
const bundlePackage = () => ({
input: path.resolve(PACKAGE_ROOT, packageJson.entry),
output: [
{
file: packageJson.main,
format: "cjs",
sourcemap: false,
},
{
file: packageJson.module,
format: "esm",
sourcemap: false,
},
],
plugins: [
json(),
peerDepsExternal(),
resolve(),
commonjs(),
typescript({
tsconfig: TS_CONFIG_PATH,
useTsconfigDeclarationDir: true,
}),
terser(),
],
});
const bundleDecelerations = () => ({
input: `${DTS_DIR_PATH}/index.d.ts`,
output: {
file: packageJson.types,
format: "esm",
},
plugins: [dts()],
});
// - Export
export default [bundlePackage(), bundleDecelerations()];