fix(ci): log yarn.lock state after tarsync (debug)

[lisa-assistant]

Summary

Adds diagnostic logging after yarn project:tarsync --verbose runs in the test project setup, to help understand the intermittent Windows CI failure where yarn cedar g secret --raw fails with:

Internal Error: root-workspace-0b6124@workspace:.: This package doesn't seem to be present in your lockfile

What this adds

After tarsync completes, we now check:

1. Did yarn.lock get created at all? (tarsync's internal yarn install errors are silently swallowed — we'd never know if it didn't run)
2. Does the lockfile contain the root-workspace- entry? — the missing entry is exactly what causes the downstream failure

The next time this fails on Windows, the log will show one of:

• WARNING: yarn.lock was not created by tarsync! → tarsync's yarn install didn't run or failed very early
• WARNING: yarn.lock exists but has no root-workspace- entry! → yarn install ran but produced an incomplete lockfile
• Root workspace entry found: root-workspace-... → lockfile is fine, look elsewhere for the failure

Relates to the investigation in docs/implementation-plans/flaky-windows-smoke-tests-investigation.md.

Test plan

• Merge and wait for next Windows CI failure to collect diagnostic info

🤖 Generated with Claude Code

[netlify]

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Name	Link
🔨 Latest commit	ab27dc6

[greptile-apps]

Greptile Summary

Adds diagnostic logging after yarn project:tarsync --verbose in the test-project CI setup to help investigate intermittent Windows failures where yarn cedar g secret --raw errors with a missing root-workspace lockfile entry.

• Checks whether yarn.lock was created at all (detecting silent tarsync failures), logs the line count with a correct trailing-newline adjustment, and searches for the \"root-workspace-… entry using the Yarn Berry v4 quoted-key format.
• The two issues caught in the previous review round — off-by-one line count and missing leading \" in startsWith — are both addressed in this version of the code.

Confidence Score: 5/5

This is a purely additive diagnostic-only change that inserts logging after tarsync and before the already-guarded secret generation step; it cannot affect CI outcomes in any direction.

Both previously reported bugs (off-by-one line count and wrong startsWith prefix for Yarn Berry v4 quoted keys) are corrected in this version. The new code reads a file synchronously for logging only and has no effect on the surrounding async flow.

No files require special attention.

Important Files Changed

Filename	Overview
.github/actions/set-up-test-project/setUpTestProject.mts	Adds post-tarsync diagnostic logging to detect a missing or incomplete yarn.lock; both previously reported issues (off-by-one line count, missing quote prefix in root-workspace search) are already fixed in this version.

_{Reviews (4): Last reviewed commit: "chore: prettier" | Re-trigger Greptile}

[nx-cloud]

🤖 Nx Cloud AI Fix

Ensure the fix-ci command is configured to always run in your CI pipeline to get automatic fixes in future runs. For more information, please see https://nx.dev/ci/features/self-healing-ci

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View your CI Pipeline Execution ↗ for commit ab27dc6

Command	Status	Duration	Result
nx run-many -t build:pack --exclude create-ceda...	✅ Succeeded	2s	View ↗
nx run-many -t test --minWorkers=1 --maxWorkers=4	✅ Succeeded	8s	View ↗
nx run-many -t test:types	✅ Succeeded	10s	View ↗
nx run-many -t build	✅ Succeeded	6s	View ↗

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☁️ Nx Cloud last updated this comment at 2026-05-16 16:47:31 UTC

[nx-cloud]

🤖 Nx Cloud AI Fix

Ensure the fix-ci command is configured to always run in your CI pipeline to get automatic fixes in future runs. For more information, please see https://nx.dev/ci/features/self-healing-ci

---

View your CI Pipeline Execution ↗ for commit 69780f4

Command	Status	Duration	Result
nx run-many -t test --minWorkers=1 --maxWorkers=4	✅ Succeeded	8s	View ↗
nx run-many -t build:pack --exclude create-ceda...	✅ Succeeded	7s	View ↗
nx run-many -t test:types	✅ Succeeded	10s	View ↗
nx run-many -t build	✅ Succeeded	6s	View ↗

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☁️ Nx Cloud last updated this comment at 2026-05-16 10:56:46 UTC

[github-actions]

The changes in this PR are now available on npm.

Try them out by running yarn cedar upgrade -t 5.0.0-canary.2359

Or try it in a new app with yarn dlx create-cedar-app@5.0.0-canary.2359