It seems we can use typescript to write rollup config file. Say, I can create a file named rollup.config.ts, with content:
import typescript from 'rollup-plugin-typescript2';
export default {
input: 'main.ts',
plugins: [typescript()],
output: {
file: 'bundle.js',
format: 'cjs',
},
external: ['lodash']
}
It's working if I invoke rollup as rollup -c rollup.config.ts.
But if I use some typings in it:
import typescript from 'rollup-plugin-typescript2';
import {RollupFileOptions} from "rollup";
const config: RollupFileOptions = {
input: 'main.ts',
plugins: [typescript()],
output: {
file: 'bundle.js',
format: 'cjs',
},
external: ['lodash']
}
export default config;
It will report errors like:
$ rollup -c rollup.config.ts
[!] Error: Unexpected token
rollup.config.ts (4:12)
2: import {RollupFileOptions} from "rollup";
3:
4: const config: RollupFileOptions = {
^
Is it possible to make it work? I tried to use ts-node with
Rannie Aguilar Peralta :
For the meantime, while it is not yet supported, JSDoc might be come useful to type check the rollup configuration. (It only works on editor that support JSDoc. e.g. VSCode).\n\n/** @type {import('rollup').RollupOptions} */\nconst options = {\n ...\n};\n\nexport default options;\n",
2019-08-02T17:07:03
Ffloriel :
You can create your rollup configuration in TypeScript\nimport { RollupOptions } from "rollup";\n\nconst bundle: RollupOptions = {\n//...\n}\nexport default bundle\n\nand use it with\nrollup --config rollup.config.ts --configPlugin @rollup/plugin-typescript\n\nYou will need to add rollup.config.ts to the included files in your tsconfig.json.\n{\n "include": ["src/**/*", "rollup.config.ts"]\n}\n",
2022-02-18T14:34:28