Are env values expected to be settable via configuration?

[akauppi]

Describe the bug

The README says:

For now, see config.ts for full details before more thorough documentation is available.

This line lead me to think that environment values can be set also in the configuration, but this did not work:

vite.emul.config.js:

module.exports = {
  env: {
    DEV_FUNCTIONS_URL: "http://localhost:5001",
    DEV_FIRESTORE_HOST: "localhost:8080"
  }
}

I need to pass these values (or at least a boolean) from the command line into the browser. Both variants are "dev" so the modes system is a bit wrong tool for it. Would appreciate it if the above config is expected to work - at some point. If not, there could be a mention in the source code about it.

Placing env. values as an .env.$mode file does work. But it clutters the root level folder so I'd favour configuration files instead.

Reproduction

https://github.com/akauppi/GroundLevel-es6-firebase-web

The repo keeps moving though.

System Info

• required vite version: 0.20.10
• required Operating System: macOS 10.15.5
• required Node version: 14
• Optional:
  • npm/yarn version
  • Installed vue version (from yarn.lock or package-lock.json)
  • Installed @vue/compiler-sfc version

Logs (Optional if provided reproduction)

1. Run vite or vite build with the --debug flag.
2. Provide the error log here.