Environment variable for dev mode

[akiross]

Hello,

reading the reference, it seems there is a TAURI_ENV_DEBUG env var that is very useful to discriminate when using --debug, but apparently there is not (or it is not documented) an environment variable that sets whether the build is from a development environment or not. That is: whether tauri dev was called or tauri build was called.

Since the dev environment might rely on external dev servers, while build environment (even when using --debug) is not, I think it could be helpful to have an environment variable for this.

Something like:

TAURI_ENV_DEVELOPMENT — true for dev command, false otherwise.

Does something like this exist already?