How to get env/define to work?

[james-superdough]

Hello hi~ I've been trying to figure out how to use env or define as explain in the document to set the variable into a build during compilation. But I can't seem to get the env into process.env? Im not quite sure what is missing... Will need some help on this. Thanks in advance. 😅

Im testing on version 0.17.0-beta.5.

//tsdown.config.ts
import { defineConfig } from 'tsdown'

export default defineConfig({
  outDir: 'build',
  clean: true,

  env: { "CUSTOM": 'custom1', "process.env.CUSTOM": 'custom1' },
  define: { "CUSTOM": 'custom2', "process.env.CUSTOM": 'custom2' },

  inputOptions: { transform: { define: { 'process.env.CUSTOM': 'custom3' } } }
})

//index.ts
const { CUSTOM } = process.env;
console.log(CUSTOM);

[sxzz]

Use the literal expression process.env.CUSTOM rather than object destructuring.

[james-superdough]

OH MY GOD I SEE NOW. Noted with thanks~ 🤣

I totally didn't spend a whole day on this...