fix(metrics): harden collect.go and modules workflow

[mdelapenya]

Signed-off-by: mdelapenya mdelapenya@gmail.com

What does this PR do?

Address coderabbit and codex feedback from #3737

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: fe20ad9f-2ffa-4b0b-9d49-a05d42f87be5

📥 Commits

Reviewing files that changed from the base of the PR and between c4c6a12 and 4329ca5.

📒 Files selected for processing (2)

• usage-metrics/collect.go
• usage-metrics/collect_test.go

✅ Files skipped from review due to trivial changes (1)

• usage-metrics/collect_test.go

🚧 Files skipped from review as they are similar to previous changes (1)

• usage-metrics/collect.go

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Summary by CodeRabbit

• Bug Fixes
  • Improved reliability of usage-metrics collection by stopping immediately if CSV output cannot be written.
  • Added a timeout to search requests and return a clearer timeout error when exceeded.
  • Treated timeout/deadline-exceeded errors as retryable to improve resilience.
  • Strengthened CSV processing by validating each row has the expected number of columns before sorting.
  • Improved workflow branch update dependability by using an explicit ref when fetching the target branch.
• Tests
  • Added coverage to confirm deadline-exceeded errors are considered retryable.

Walkthrough

The workflow's module input handling now uses a step-level environment variable, and branch checkout uses an explicit fetch refspec. The usage-metrics collector adds timeout-based gh api execution, fatal CSV write handling, CSV row validation, and retry coverage for deadline errors.

Changes

Usage metrics robustness improvements

Layer / File(s)	Summary
Workflow input and fetch .github/workflows/usage-metrics-modules.yml	The “Query modules” step reads module input from MODULES_INPUT instead of inline interpolation, and the existing-branch fetch writes the branch into refs/remotes/origin/$BRANCH_NAME.
Collector timeout and validation usage-metrics/collect.go, usage-metrics/collect_test.go	collect.go adds context, returns an error when appendToCSV fails, runs gh api with a 30-second timeout and deadline-specific handling, treats context.DeadlineExceeded as retryable, and rejects CSV rows with fewer than two columns; the test file adds coverage for the deadline retry case.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• testcontainers/testcontainers-go#3499: Also adjusts usage-metrics collection behavior around GitHub API execution and retry handling.
• testcontainers/testcontainers-go#3620: Also changes retry-related logic in the usage-metrics collector.
• testcontainers/testcontainers-go#3737: Also touches the same usage-metrics collector and workflow paths.

Suggested labels

chore, github_actions

Poem

🐇 A bunny hopped through metrics bright,
With timed-out calls and CSVs tight.
If branches fetch and rows don’t fit,
The collector now won’t just skip it.
Hop hop—retry, validate, and rest,
This little PR does its best!

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 20.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main changes to metrics collection and the modules workflow.
Description check	✅ Passed	The description is related to the PR because it references addressing feedback for the same changeset.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[chatgpt-codex-connector]

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Reviewed commit: c4c6a1259e

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