Cannot access 'SITE_TITLE' before initialization during build in 2.0.0-beta.0

[fflaten]

What version of astro are you using?

2.0.0-beta.0

Are you using an SSR adapter? If so, which one?

None

What package manager are you using?

npm

What operating system are you using?

Linux

Describe the Bug

Getting the following error when building (not dev) using 2.0.0-beta.0. Works fine in 1.9.0.

generating static routes 
 error   Cannot access 'SITE_TITLE' before initialization
  File:
    file://file:///home/projects/github-zea7ll/node_modules/astro/dist/core/build/generate.js:81:20
  Stacktrace:
Error: Cannot access 'SITE_TITLE' before initialization
    at async Module.generatePages (file://file:///home/projects/github-zea7ll/node_modules/astro/dist/core/build/generate.js:81:20)
    at async Module.staticBuild (file://file:///home/projects/github-zea7ll/node_modules/astro/dist/core/build/static-build.js:85:7)
    at async AstroBuilder.build (file://file:///home/projects/github-zea7ll/node_modules/astro/dist/core/build/index.js:103:5)

Link to Minimal Reproducible Example

https://stackblitz.com/edit/github-zea7ll

Participation

• I am willing to submit a pull request for this issue.

[fflaten]

Sorry for the vague issue and weird repro. It's taken hours to extract enough to create the repro so I need a break before trying to simplify it more. Code getting bundled in the wrong order?

[matthewp]

Does this happen in 1.x?

[fflaten]

No, works fine in 1.9.0.

[natemoo-re]

Just FYI @matthewp this looks like something related to the way our intermediate (server) bundle is generated before the pages are statically rendered. You can see this in the reproduction by inspecting the files in the dist/ directory before the error occurs. The constants are re-exported from the index page chunk, which seems to be the source of the problem.

I suspect this would happen on 1.x with the --experimental-prerender flag passed

[fflaten]

I suspect this would happen on 1.x with the --experimental-prerender flag passed

Can confirm 1.9.0 breaks with astro build --experimental-prerender in the new simplified repro: https://stackblitz.com/edit/github-zea7ll-jop67q (which is currently set to 2.0.0-beta.0)

[natemoo-re]

Thanks for your patience, I'm looking into this one again today. Will be sure to share progress updates.

[natemoo-re]

I was able to determine what bundling change causes this, but I'm still unsure of the correct way to split each page into a chunk without hitting this issue.

That being said, per-page splitting is purely cosmetic. If we emit a single chunk, this is no longer an issue.