lttng: detect ctf2 kernel traces as kernel traces

[arfio]

What it does

Detect lttng CTF2 kernel traces as linux kernel traces.

How to test

Open a CTF2 lttng trace.

Review checklist

• As an author, I have thoroughly tested my changes and carefully followed the instructions in this template

Summary by CodeRabbit

• Bug Fixes
  • Fixed domain validation to accept both standard and quoted kernel domain identifiers in trace configuration.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

---

📝 Walkthrough

Walkthrough

The pull request modifies domain validation logic in LttngKernelTrace.validate() to accept both "kernel" and ""kernel"" as valid domain values, relaxing the previous constraint that only allowed the quoted variant.

Changes

Cohort / File(s)	Summary
Domain Validation lttng/org.eclipse.tracecompass.lttng2.kernel.core/src/org/eclipse/tracecompass/lttng2/kernel/core/trace/LttngKernelTrace.java	Updated domain validation to accept both unquoted ("kernel") and quoted (""kernel"") domain values, while still rejecting null and other values.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Poem

🐰 A kernel trace, both quoted and plain,
Now passes validation without strain,
Whether "kernel" or its quoted twin,
Both pathways welcome, let traces begin! ✨

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'lttng: detect ctf2 kernel traces as kernel traces' directly addresses the main change: extending domain validation to recognize CTF2 kernel traces, which aligns with the PR objective of detecting LTTng CTF2 kernel traces as Linux kernel traces.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Merge Conflict Detection	✅ Passed	✅ No merge conflicts detected when merging into master

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

Tip

Issue Planner is now in beta. Read the docs and try it out! Share your feedback on Discord.

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}