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vp build / void deploy exit 0 when a page fails to prerender, and the page is silently missing

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A pull request for this has already been merged.

  • #586 by @0froq — merged

Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
76/100
Issue type
Bug
Clarity
Clearly specified
Activity status
Active
Tech stack
typescript, vite
Domain
build-system, cli

Research direction

Start with packages/void/src/plugin-prerender.ts and cli/deploy-managed-full.ts, where the issue says failed prerenders are only warned about. Trace how each build and deploy path handles result.failed, then check the build and deploy behavior for the supplied static app repro. Done means either path reports failure with a non-zero exit when a page fails to prerender, or implements the requested opt-in strict behavior.

Written by the indexing model from the issue text.

Description

Version: void 1.2.1 (also 1.1.12); main at a6de7829.

Repro

  1. A static Void app (output: 'static').
  2. pages/throws.island.tsx: 
    export default function Throws(): never { throw new Error('boom'); }
  3. vp build; echo $?, then ls dist/client/throws.html.

Actual:

[void] prerender /throws failed: HTTP 500
[void] 1 page(s) failed to prerender
0
ls: cannot access 'dist/client/throws.html': No such file or directory

void deploy does the same (deploy-managed-full.ts), so the deploy ships without the page.

Expected: a non-zero exit when any page fails to prerender, or at least an opt-in such as routing.prerenderFailures: 'error' or --strict. A CI build should not report success while a route is gone from production.

Cause: packages/void/src/plugin-prerender.ts:67-69 and cli/deploy-managed-full.ts call voidWarn(...) on result.failed.length > 0 and nothing else. Throwing there (or this.error(...) in closeBundle) would fail the build.

Dominant language
TypeScript
Stars
580
Forks
56
Avg merge
12h 25m
Merged PRs (30d)
134

Getting set up

This project ships no dev container, Dockerfile or contributing guide, so setting up is up to you: start from its README, and see our first-contribution guide for the general steps.

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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