[polaz]

Summary

• The cross-validation job on main downloads its corpora from this repository's bench-corpora release instead of the publishing hosts, one of which answers GitHub-hosted runners with 403.

Changes

• scripts/cross-validate.sh: silesia, canterbury and enwik8 come from releases/download/bench-corpora, checked against the same SHA-256 digests as the original archives.

Testing

• The three release assets download through fetch_verified and match their digests. The job itself runs only on pushes to main, so it is exercised after merge.

Closes #611

Summary by CodeRabbit

• Chores
  • Benchmark archives are now downloaded from a different source. Existing integrity checks and destination paths are unchanged.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-19T18:12:47.116155Z	27893cc	PR opened

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Repository: structured-world/structured-zstd/.coderabbit.yaml
• Review profile: ASSERTIVE
• Plan: Advanced
• Run ID: 246dec6f-71c1-4bf8-83d4-ba12f825aee8

📥 Commits

Reviewing files that changed from the base of the PR and between 3472973 and 27893cc.

📒 Files selected for processing: 1

• scripts/cross-validate.sh

Included review availability: This review used your included allowance. Your plan provides up to 1 included review per hour; 0 remain after this review.

📝 Walkthrough

The cross-validation script now downloads the Silesia, Canterbury, and enwik8 archives from the repository’s bench-corpora release. It retains the existing SHA-256 digests and destination paths.

Changes: Cross-validation corpus downloads

Layer / File(s)	Summary
Update corpus download sources scripts/cross-validate.sh	The three corpus URLs now use the bench-corpora release. The script retains the existing digest checks and output paths.

Priority: ➖ Normal

Estimated code review effort: 2 (Simple) | ~5 minutes

Change: Bug fix · Severity of issue fixed: Medium

Merge Risk: ⚪ Minimal · up to 27893

The cross-validation script now downloads the three corpora from the repository release and rejects digest mismatches. The assets match the configured hashes, leaving no identified merge-blocking risk.

Pre-merge checks: 4 · 1

Failed checks: 1 inconclusive

Check name	Status	Explanation	Resolution
Linked Issues check		For issue #611, scripts/cross-validate.sh now downloads silesia.zip, cantrbry.tar.gz, and enwik8.zip from the bench-corpora release URL. It retains the three required SHA-256 digests and pas…	Provide reviewable evidence for the bench-corpora release metadata and assets, including the non-latest status and the three asset digests, plus evidence that the main cross-validation job passes the corpus download step.

Passed checks: 4 passed

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly and concisely describes the main change: updating CI to fetch the cross-validation corpora from this repository.
Out of Scope Changes check		The whole-PR diff changes only scripts/cross-validate.sh. The URL changes, digest retention, and explanatory comment directly implement issue #611. No unrelated production or workflow changes are pr…
Docstring Coverage		No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1…

Full details: Out of Scope Changes check

Explanation

The whole-PR diff changes only scripts/cross-validate.sh. The URL changes, digest retention, and explanatory comment directly implement issue #611. No unrelated production or workflow changes are present.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1 files.

Full details: Linked Issues check

Explanation

For issue #611, scripts/cross-validate.sh now downloads silesia.zip, cantrbry.tar.gz, and enwik8.zip from the bench-corpora release URL. It retains the three required SHA-256 digests and passes each download to fetch_verified. The reviewed repository does not contain the GitHub release assets or release metadata. Therefore, this evidence cannot establish that the assets are byte-identical to the originals, that the release is not marked latest, or that the main job gets past the downloads. The PR description reports successful downloads and digest checks, but it does not provide reviewable evidence for the release metadata or a main run.

Resolution

Provide reviewable evidence for the bench-corpora release metadata and assets, including the non-latest status and the three asset digests, plus evidence that the main cross-validation job passes the corpus download step.

✨ Finishing Touches

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🧪 Generate unit tests (beta)

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