Improve CI infrastructure for pre-commit - #2110
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EliahKagan merged 2 commits intoMar 9, 2026
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The `ubuntu-slim` runner is lighter weight, being a container rather than using a whole VM, and having only one vCPU, less RAM, and a 15 minute time limit. It's not suitable for most of our CI jobs in GitPython, but it should work well for our `pre-commit` checks. (If it doesn't, that's reason to suspect they might be better removed from `pre-commit` and run in a different way.) - https://github.blog/changelog/2026-01-22-1-vcpu-linux-runner-now-generally-available-in-github-actions/ - https://github.com/actions/runner-images/blob/main/images/ubuntu-slim/ubuntu-slim-Readme.md
- Add `pre-commit` as an ecosystem for Dependabot version updates, now that it is available as a beta ecosystem. Enable beta ecosystems to allow this. - Group the updates and use a monthly cadence to avoid getting swamped by frequent automated PRs. - It would be valuable in the future to Use a 7-day cooldown period rather than taking new versions immediately once released. (This may also be of value to developers who use `pre-commit` locally.) However, this doesn't do that, since the Dependabot ecosystem for `pre-commit` does not currently support `cooldown`. - Use a less busy style (less unnecessary quoting) than was being used in `dependabot.yml` before, since this new stanza is more elaborate than before. Apply that style to the existing stanzas for consistency.
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Pull request overview
Adjusts CI configuration to make the pre-commit lint job run on a lighter runner and enables Dependabot updates for pre-commit hook versions, keeping hook tooling (e.g., ruff) current without relying on external integrations.
Changes:
- Switch lint workflow job runner from ubuntu-latest to ubuntu-slim.
- Enable Dependabot beta ecosystems and add grouped monthly updates for pre-commit hooks.
- Minor YAML normalization in Dependabot config (remove unnecessary quoting).
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| .github/workflows/lint.yml | Moves the lint job to ubuntu-slim to reduce CI resource usage for pre-commit. |
| .github/dependabot.yml | Enables beta ecosystems and adds pre-commit ecosystem updates grouped into a single PR. |
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EliahKagan
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Mar 9, 2026
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Note that this PR (intentionally) does not upgrade any actual pre-commit hooks. Dependabot should open a PR to do that once this merges.
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EliahKagan
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March 9, 2026 19:44
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Apr 27, 2026
This MR contains the following updates: | Package | Type | Update | Change | OpenSSF | |---|---|---|---|---| | [gitpython](https://github.com/gitpython-developers/GitPython) | dev | patch | `3.1.46` → `3.1.47` | [](https://securityscorecards.dev/viewer/?uri=github.com/gitpython-developers/GitPython) | --- ### Release Notes <details> <summary>gitpython-developers/GitPython (gitpython)</summary> ### [`v3.1.47`](https://github.com/gitpython-developers/GitPython/releases/tag/3.1.47): - with security fixes [Compare Source](gitpython-developers/GitPython@3.1.46...3.1.47) #### Advisories - <GHSA-rpm5-65cw-6hj4> - <GHSA-x2qx-6953-8485> #### What's Changed - Prepare next release by [@​Byron](https://github.com/Byron) in [#​2095](gitpython-developers/GitPython#2095) - Bump git/ext/gitdb from `335c0f6` to `4c63ee6` by [@​dependabot](https://github.com/dependabot)\[bot] in [#​2096](gitpython-developers/GitPython#2096) - DOC: README Add urls and updated a relative url by [@​Timour-Ilyas](https://github.com/Timour-Ilyas) in [#​2098](gitpython-developers/GitPython#2098) - Fix GitConfigParser ignoring multiple \[include] path entries by [@​daniel7an](https://github.com/daniel7an) in [#​2100](gitpython-developers/GitPython#2100) - Switch back from Alpine to Debian for WSL by [@​EliahKagan](https://github.com/EliahKagan) in [#​2108](gitpython-developers/GitPython#2108) - Bump git/ext/gitdb from `4c63ee6` to `5c1b303` by [@​dependabot](https://github.com/dependabot)\[bot] in [#​2106](gitpython-developers/GitPython#2106) - Run `gc.collect()` twice in `test_rename` on Python 3.12 by [@​EliahKagan](https://github.com/EliahKagan) in [#​2109](gitpython-developers/GitPython#2109) - fix: guard AutoInterrupt terminate during interpreter shutdown by [@​lweyrich1](https://github.com/lweyrich1) in [#​2105](gitpython-developers/GitPython#2105) - Improve CI infrastructure for pre-commit by [@​EliahKagan](https://github.com/EliahKagan) in [#​2110](gitpython-developers/GitPython#2110) - Bump the pre-commit group with 5 updates by [@​dependabot](https://github.com/dependabot)\[bot] in [#​2111](gitpython-developers/GitPython#2111) - Upgrade Sphinx for 3.14 support; drop doc build support on 3.8; test 3.14 by [@​EliahKagan](https://github.com/EliahKagan) in [#​2112](gitpython-developers/GitPython#2112) - Fix `Repo.active_branch` resolution for reftable-backed repositories by [@​Copilot](https://github.com/Copilot) in [#​2114](gitpython-developers/GitPython#2114) - docs: warn about GitDB performance with large commits by [@​mvanhorn](https://github.com/mvanhorn) in [#​2115](gitpython-developers/GitPython#2115) - cmd: fix kwarg formatting in docstring example by [@​UweSchwaeke](https://github.com/UweSchwaeke) in [#​2117](gitpython-developers/GitPython#2117) - Bump <https://github.com/astral-sh/ruff-pre-commit> from v0.15.5 to 0.15.8 in the pre-commit group by [@​dependabot](https://github.com/dependabot)\[bot] in [#​2122](gitpython-developers/GitPython#2122) - Add trailer support for commit creation by [@​Krishnachaitanyakc](https://github.com/Krishnachaitanyakc) in [#​2116](gitpython-developers/GitPython#2116) - Harden commit trailer subprocess handling and align trailer I/O paths by [@​Copilot](https://github.com/Copilot) in [#​2125](gitpython-developers/GitPython#2125) - git.cmd.Git.execute(..): fix `with_stdout=False` by [@​ngie-eign](https://github.com/ngie-eign) in [#​2126](gitpython-developers/GitPython#2126) - Make sure that multi-options are checked after splitting them with `shlex` by [@​Byron](https://github.com/Byron) in [#​2130](gitpython-developers/GitPython#2130) - Block unsafe underscored git kwargs / Fix for GHSA-rpm5-65cw-6hj4 by [@​WesR](https://github.com/WesR) in [#​2131](gitpython-developers/GitPython#2131) #### New Contributors - [@​Timour-Ilyas](https://github.com/Timour-Ilyas) made their first contribution in [#​2098](gitpython-developers/GitPython#2098) - [@​daniel7an](https://github.com/daniel7an) made their first contribution in [#​2100](gitpython-developers/GitPython#2100) - [@​lweyrich1](https://github.com/lweyrich1) made their first contribution in [#​2105](gitpython-developers/GitPython#2105) - [@​Copilot](https://github.com/Copilot) made their first contribution in [#​2114](gitpython-developers/GitPython#2114) - [@​mvanhorn](https://github.com/mvanhorn) made their first contribution in [#​2115](gitpython-developers/GitPython#2115) - [@​UweSchwaeke](https://github.com/UweSchwaeke) made their first contribution in [#​2117](gitpython-developers/GitPython#2117) - [@​Krishnachaitanyakc](https://github.com/Krishnachaitanyakc) made their first contribution in [#​2116](gitpython-developers/GitPython#2116) - [@​ngie-eign](https://github.com/ngie-eign) made their first contribution in [#​2126](gitpython-developers/GitPython#2126) - [@​WesR](https://github.com/WesR) made their first contribution in [#​2131](gitpython-developers/GitPython#2131) **Full Changelog**: <gitpython-developers/GitPython@3.1.46...3.1.47> </details> --- - [ ] <!-- rebase-check -->If you want to rebase/retry this MR, check this box --- This MR has been generated by [Mend Renovate](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4xNDEuNSIsInVwZGF0ZWRJblZlciI6IjQzLjE0MS41IiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJkZXBlbmRlbmNpZXMiLCJyZW5vdmF0ZSJdfQ==--> See merge request swiss-armed-forces/cyber-command/cea/loom!486 Co-authored-by: Loom MR Pipeline Trigger <group_103951964_bot_9504bb8dead6d4e406ad817a607f24be@noreply.gitlab.com>
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On CI, the pre-commit job has two shortcomings:
These have both become easier to address recently:
This PR uses the ubuntu-slim runner to run pre-commit on CI, and enables Dependabot version updates for pre-commit hooks.