feat(vercel): incremental static generation + swr

[danielroe]

🔗 Linked issue

❓ Type of change

• 📖 Documentation (updates to the documentation or readme)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

Like #540, this PR adapts the vercel preset to automatically support ISG strategies based on the swr/static route rule.

For example, the following config would create prerender functions for the blog & articles routes. The blog routes would be generated only once and then persisted; the articles routes would be regenerated every 360 seconds.

export default defineNitroConfig({
  routes: {
    '/blog/**': { static: true },
    '/articles/**': { swr: 360 }
  }
})

Here's a deployment using this preset: https://verc-danielroe.vercel.app/

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[codecov]

Codecov Report

Merging #545 (1f1224a) into main (0ccdc18) will increase coverage by 0.48%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #545      +/-   ##
==========================================
+ Coverage   66.43%   66.91%   +0.48%     
==========================================
  Files          57       57              
  Lines        4210     4232      +22     
  Branches      450      459       +9     
==========================================
+ Hits         2797     2832      +35     
+ Misses       1409     1397      -12     
+ Partials        4        3       -1     

Impacted Files	Coverage Δ
src/presets/vercel.ts	74.12% <100.00%> (+9.66%)	⬆️
src/options.ts	87.36% <0.00%> (+2.60%)	⬆️

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[bokub]

Hello 👋

Will this support a way to refresh a static page manually? For example with a bypassToken?

[danielroe]

That is planned, but not part of this PR. (It's a straightforward enhancement, so it should be fairly quick to implement, and I already have a local proof-of-concept.)

[bokub]

That's awesome, thanks a lot Daniel for your reactivity 👍

[danielroe]

We should be good to merge now - @TooTallNate fixed the upstream bug and also spotted an issue with a regexp. Sample deployment running with Vercel ISG: https://verc-danielroe.vercel.app.

cc: @pi0

[bokub]

Hi Daniel, sorry to bother you again on this question, but is there a way to refresh a static page manually (on-demand ISR) for a Nuxt project deployed on Vercel ?

I couldn't find anything in the current Nuxt documentation 😕

Thanks again !

[danielroe]

This isn't yet implemented but will be 😊

[bokub]

OK, thanks ! Is there some public road map or an issue I could follow to be alerted when this is implemented ?