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seisman
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Sep 4, 2026
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| - package-ecosystem: "github-actions" | ||
| directory: "/" | ||
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September 4, 2026 11:48
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🟢 Approval recommended
The workflow and action changes are internally consistent, align with existing local-action usage in the repo, and implement the stated LFS bandwidth reduction approach without introducing verified correctness issues.
Pull request overview
This PR introduces a local composite GitHub Action to cache Git LFS objects (baseline images) in GitHub Actions cache, then updates CI workflows to use it so git lfs pull only downloads missing objects and reduces LFS bandwidth usage.
Changes:
- Add a composite action (
checkout-lfs) that computes an LFS-object cache key and restores/caches.git/lfsbefore runninggit lfs pull. - Update CI workflows to disable
actions/checkoutLFS fetching and instead run the new composite action. - Update Dependabot configuration to also monitor GitHub Actions used under
/.github/actions/*.
File summaries
| File | Description |
|---|---|
| .github/workflows/ci_tests.yaml | Disables checkout LFS and adds a step to run the new checkout-lfs composite action. |
| .github/workflows/ci_tests_dev.yaml | Same CI adjustment for the dev CI workflow matrix. |
| .github/dependabot.yml | Expands Dependabot’s GitHub Actions update scope to include local action directories. |
| .github/actions/checkout-lfs/action.yml | New composite action that caches/restores .git/lfs and runs git lfs pull. |
Review details
- Files reviewed: 4/4 changed files
- Comments generated: 0
- Review effort level: Lite
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Address the LFS bandwidth quota issue reported in #4738 (comment).
This PR adds a composite action to cache Git LFS objects (i.e., baseline images) as GitHub cache, so that
git lfs pullonly pulls LFS objects when missing. It should help reduce our Git LFS bandwidth.