ci(snapshot): gate DynamoCheckpoint CI on framework snapshot paths

[galletas1712]

Summary

• Add snapshot_vllm / snapshot_sglang / snapshot_trtllm CI filters for each backend's snapshot.py and TRT-LLM's existing test_trtllm_snapshot.py.
• Wire those filters into the matching DynamoCheckpoint deploy jobs in pr.yaml, so a framework-local snapshot change runs that backend's suite instead of being skipped.
• Keep the shared snapshot filter for agent/operator/deploy paths (still runs all three frameworks).
• Document the filters and cover them in .github/scripts/test-filters.js.

Fixes the gap seen on #11744, where vLLM/TRT-LLM snapshot warmup changes triggered backend unit tests but skipped all DynamoCheckpoint jobs.

Validation

• cd .github/scripts && npm test — 26/26 filter pattern tests passed
• CI path detection on this PR (expect snapshot_vllm/snapshot_trtllm only if those files change; this PR changes filters/workflows so core/ci will also match)

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Summary by CodeRabbit

• CI Improvements

  • Added framework-specific snapshot change detection for vLLM, SGLang, and TRT-LLM.
  • Updated pull request checks to run the appropriate build, test, deployment, checkpoint, and image workflows when related snapshot changes are detected.
  • Shared snapshot and DynamoCheckpoint changes now trigger the relevant common validation workflows.

• Documentation

  • Clarified snapshot filter coverage and trigger behavior.

• Tests

  • Added coverage for framework-specific and shared snapshot change scenarios.

[devin-ai-integration]

Devin Review found 1 potential issue.

[github-actions]

🌿 Fern Docs Preview: https://nvidia-preview-019faf8e-4d1a-7145-a219-5536446b5347.docs.buildwithfern.com/dynamo/dev

[coderabbitai]

Walkthrough

Snapshot CI detection now distinguishes vLLM, SGLang, and TRT-LLM changes, exposes corresponding outputs, validates filter behavior, and routes framework-specific build, deployment, testing, and cleanup jobs.

Changes

Snapshot CI routing

Layer / File(s)	Summary
Snapshot filter definitions and validation .github/FILTERS.md, .github/filters.yaml, .github/scripts/test-filters.js	Documents shared and framework-specific snapshot filters, defines their paths, and adds matching test cases.
Changed-files output propagation .github/actions/changed-files/action.yml	Adds framework-specific outputs, debug logging, and coverage tracking for snapshot filters.
Framework build and image routing .github/workflows/pr.yaml	Routes framework snapshot outputs into build, frontend, image-copy, placeholder, operator, and snapshot-agent job conditions.
Checkpoint deployment and cleanup routing .github/workflows/pr.yaml	Gates framework-specific operator, snapshot-agent, deployment-test, and cleanup jobs using matching snapshot outputs.

Estimated code review effort: 3 (Moderate) | ~25 minutes

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description covers the change and validation, but it misses required template sections like Overview, Details, reviewer start, and Related Issues.	Rewrite the PR description to match the template, including Overview, Details, Where should the reviewer start?, and a completed Related Issues section.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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 accurately summarizes the main change: gating DynamoCheckpoint CI on framework-specific snapshot paths.

---

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In @.github/scripts/test-filters.js:
- Around line 191-199: Add a test-filter matrix entry in the surrounding cases
of .github/scripts/test-filters.js for
components/src/dynamo/sglang/tests/test_sglang_snapshot.py, asserting
snapshot_sglang is true while sglang, snapshot, snapshot_vllm, and
snapshot_trtllm are false, consistent with the existing SGLang snapshot.py case.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Enterprise

Run ID: a10cde60-c696-4500-96a6-8b28371d6377

📥 Commits

Reviewing files that changed from the base of the PR and between c2ea0c4 and 6dfd42d.

📒 Files selected for processing (5)

• .github/FILTERS.md
• .github/actions/changed-files/action.yml
• .github/filters.yaml
• .github/scripts/test-filters.js
• .github/workflows/pr.yaml

[datadog-official]

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 44.97% (+7.05%)

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: a9ce30d | Docs | Datadog PR Page | Give us feedback!}

[nv-tusharma]

snapshot_vllm/snapshot_sglang list test_vllm_snapshot.py/test_sglang_snapshot.py, which do not exist on this branch or main (only trtllm's does) — those two lines are dead and the "unit tests" wording overstates coverage. Suggest dropping them (keep the snapshot.py paths) or confirming they're intentional placeholders.

[galletas1712]

@nv-tusharma Addressed in 36b90ca: removed the nonexistent vLLM/SGLang test_*_snapshot.py filter entries and their synthetic filter-test cases, while retaining each backend’s snapshot.py path and TRT-LLM’s existing unit-test path. I also corrected the coverage wording in filters.yaml and the PR summary. Validation: .github/scripts && npm test passes 26/26 cases; git diff --check passes.

[copy-pr-bot]

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[galletas1712]

/ok to test dad6b09

[galletas1712]

/ok to test 3c2df77

[galletas1712]

/ok to test ae16d63

[galletas1712]

/ok to test ae16d63

[copy-pr-bot]

/ok to test ae16d63

@galletas1712, there was an error processing your request: E2

See the following link for more information: https://docs.gha-runners.nvidia.com/cpr/e/2/

[galletas1712]

/ok to test a9ce30d