Dynamic public base path

[danielroe]

Clear and concise description of the problem

Sometimes we might run a built Vite site in a number of different locations. It would be convenient to have vite support for setting the public base path dynamically rather than just at build time.

Suggested solution

As with __webpack_public_path__, vite could expose a global __vite_public_path__ variable that could be set and would automatically update all asset references throughout the app.

Alternative

We currently implement this in Nuxt using a vite plugin, but it would be great to have built-in support upstream.

I would be very willing to implement this if it's in line with the project roadmap.

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[bluwy]

Duplicate of #3522 😬 But having built-in support sounds like a great idea to me! Also nice to know there's a Vite plugin that can implement this.

[danielroe]

Thanks @bluwy. I see it's still pending triage, but are you saying you'd welcome a PR?

[bluwy]

I actually asked a question there which no-one had answered. I'm assuming you had already considered base: './', and finally when with this approach, and if that's the case it would be good to implement then. Still I would be interested to know if base: './' had worked for you? 🤔

To be safe, I can put this in the team board too and we can discuss about it first.