Load .env environment variables for vite dev

[ryansch]

Description 📖

This pull request ensures that Rails has initialized before running the vite dev server.

Background 📜

I noticed that setting VITE_RUBY_* environment variables via .env.* files would work for vite build but not for vite dev.

The Fix 🔨

I generalized the ViteRails::CLI::Build module to apply to both vite build and vite dev.

[ryansch]

We've been running this in production (and development) for almost a year without issues.

[ryansch]

@ElMassimo Any chance of getting eyes on this? I'd love to not need to maintain a fork.

[ElMassimo]

Hi Ryan. I'd like to make this optional.

One of the advantages of the Vite dev server is that it starts very fast, which is wasted if you boot Rails first.

[ryansch]

The problem I have is that without this patch, the server starts with an incorrect configuration.

I'm setting these 3: VITE_RUBY_HOST, VITE_HMR_HOST, and VITE_HMR_CLIENT_PORT. I'm using puma-dev for local development and this gets me full TLS with a proper hostname. It works great if vite dev loads me .env.local file.