Bring back next export command

[meds]

Goals

I'd like to be able to run commands to export nextjs and do dev without needing to modify next.config.js

Non-Goals

No response

Background

I build a capacitor mobile app using nextjs which requires the export command, something like this:

"build:android:prod": "NODE_ENV=production SKIP_SSR=1 next build && next export && npx cap copy android",

Because of this change now instead of simply using next export in my build:android/build:ios command now I have to comment in/out output: export in next.config.js

Proposal

Restore next export command so I can build exports from package.json

[icyJoseph]

You can define your own export script, which could do something like SHOULD_EXPORT=true next build

and then inside next.config.js

// other stuff
output: process.env.SHOULD_EXPORT === 'true' ? "export" : undefined,
// more stuff