Catch missing property exception when checking size change

[mulkieran]

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[mulkieran]

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Walkthrough

The change records pools whose physical size cannot be read. It adds an unknown-size alert code with corresponding code, explanation, and summary text.

Changes

Pool device size alerts

Layer / File(s)	Summary
Unknown-size alert contract src/stratis_cli/_alerts.py	PoolDeviceSizeChangeAlert now includes DEVICE_SIZE_CHANGE_UNKNOWN. Its string code, explanation, and summary describe unknown device size information.
Unreadable size detection and alert selection src/stratis_cli/_actions/_list_pool.py	DeviceSizeChangedAlerts records pools that raise DbusClientMissingPropertyError during size lookup. alert_codes returns the unknown-size alert when applicable and can include multiple size-change alerts.

Priority: ⬇️ Low

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Bug fix

Merge Risk: 🔵 Low · up to 3ca67

Devices reporting an invalid new physical size will not show the new unknown-size warning, leaving incomplete size information unreported. Correct this before merging.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Docstring Coverage	✅ Passed	Docstring coverage is 83.33% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 6 functions across 2 files.
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.
Title check	✅ Passed	The title clearly describes the main change: handling a missing property exception during size-change checks.

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Actionable comments posted: 1

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Inline comments:
In `@src/stratis_cli/_actions/_list_pool.py`:
- Around line 147-154: Update the pool size comparison flow around get_property
and modev.NewPhysicalSize so an invalid property validity bit adds modev.Pool()
to unknown before comparing sizes. Preserve the existing increased/decreased
handling only for valid observed sizes, and ensure the unknown path emits
DEVICE_SIZE_CHANGE_UNKNOWN through the existing mechanism.

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ℹ️ Review info

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Configuration used: Organization UI

Review profile: CHILL

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Run ID: b4cd6402-24e2-460a-8866-9107371f87dd

📥 Commits

Reviewing files that changed from the base of the PR and between d1b5c8d and 3ca6764.

📒 Files selected for processing (2)

• src/stratis_cli/_actions/_list_pool.py
• src/stratis_cli/_alerts.py

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