TEST-INFRA: [ci-pipeline-design] Use `uv` for faster venv creation in nox #1966

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opened 2026-04-03 00:25:25 +00:00 by freemo · 1 comment

freemo commented

2026-04-03 00:25:25 +00:00

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Branch: chore/ci-pipeline-design-uv-nox-backend
Commit Message: chore(nox): switch venv backend to uv for faster virtual environment creation
Milestone: v3.8.0
Parent Epic: #1678

Background and Context

The noxfile.py currently uses the default venv backend for creating virtual environments in nox sessions. The uv tool provides a significantly faster venv creation and package installation mechanism, which can meaningfully reduce overall CI execution time — particularly on cold runs where environments are not cached.

Since uv is already used in this project for dependency management, switching the nox venv backend to uv is a low-risk, high-value change that aligns with the project's existing tooling choices.

Expected Behavior

All nox sessions use venv_backend='uv', resulting in faster virtual environment creation and package installation during CI runs.

Acceptance Criteria

All nox.session definitions in noxfile.py use venv_backend='uv'.
The CI pipeline runs successfully with the uv backend.
No regressions are introduced in any nox session.
The change is documented in the changelog.

Subtasks

Update all nox.session calls in noxfile.py to use venv_backend='uv'.
Verify that the CI pipeline runs successfully with the uv backend.
Measure and document the impact on CI execution time.
Update the changelog to reflect the change.
Run nox (all default sessions), fix any errors.
Verify coverage >= 97% via nox -s coverage_report.

Definition of Done

This issue is complete when:

All subtasks above are completed and checked off.
All nox sessions in noxfile.py use the uv backend.
The CI pipeline runs successfully with no regressions.
A Git commit is created where the first line of the commit message matches the Commit Message in Metadata exactly, followed by a blank line, then additional lines providing relevant details about the implementation.
The commit is pushed to the remote on the branch matching the Branch in Metadata exactly.
The commit is submitted as a pull request to master, reviewed, and merged before this issue is marked done.
All nox stages pass.
Coverage >= 97%.

Automated by CleverAgents Bot
Supervisor: Test Infrastructure | Agent: ca-new-issue-creator

## Metadata - **Branch**: `chore/ci-pipeline-design-uv-nox-backend` - **Commit Message**: `chore(nox): switch venv backend to uv for faster virtual environment creation` - **Milestone**: v3.8.0 - **Parent Epic**: #1678 ## Background and Context The `noxfile.py` currently uses the default `venv` backend for creating virtual environments in nox sessions. The `uv` tool provides a significantly faster venv creation and package installation mechanism, which can meaningfully reduce overall CI execution time — particularly on cold runs where environments are not cached. Since `uv` is already used in this project for dependency management, switching the nox venv backend to `uv` is a low-risk, high-value change that aligns with the project's existing tooling choices. ## Expected Behavior All nox sessions use `venv_backend='uv'`, resulting in faster virtual environment creation and package installation during CI runs. ## Acceptance Criteria - All `nox.session` definitions in `noxfile.py` use `venv_backend='uv'`. - The CI pipeline runs successfully with the `uv` backend. - No regressions are introduced in any nox session. - The change is documented in the changelog. ## Subtasks - [ ] Update all `nox.session` calls in `noxfile.py` to use `venv_backend='uv'`. - [ ] Verify that the CI pipeline runs successfully with the `uv` backend. - [ ] Measure and document the impact on CI execution time. - [ ] Update the changelog to reflect the change. - [ ] Run `nox` (all default sessions), fix any errors. - [ ] Verify coverage >= 97% via `nox -s coverage_report`. ## Definition of Done This issue is complete when: - All subtasks above are completed and checked off. - All nox sessions in `noxfile.py` use the `uv` backend. - The CI pipeline runs successfully with no regressions. - A Git commit is created where the **first line** of the commit message matches the Commit Message in Metadata exactly, followed by a blank line, then additional lines providing relevant details about the implementation. - The commit is pushed to the remote on the branch matching the **Branch** in Metadata exactly. - The commit is submitted as a **pull request** to `master`, reviewed, and **merged** before this issue is marked done. - All nox stages pass. - Coverage >= 97%. --- **Automated by CleverAgents Bot** Supervisor: Test Infrastructure | Agent: ca-new-issue-creator

freemo added this to the v3.8.0 milestone

2026-04-03 00:25:32 +00:00

freemo commented

2026-04-03 00:26:57 +00:00

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Issue triaged by project owner:

State: Verified
MoSCoW: MoSCoW/Could Have — CI/test infrastructure improvement.

Automated by CleverAgents Bot
Supervisor: Project Owner | Agent: ca-project-owner

Issue triaged by project owner: - **State**: Verified - **MoSCoW**: MoSCoW/Could Have — CI/test infrastructure improvement. --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: ca-project-owner

freemo added the

MoSCoW

Could have

label

2026-04-03 00:26:58 +00:00

freemo added a new dependency

2026-04-03 00:27:19 +00:00

#1678 Epic: CI Execution Time Optimization — Timeouts, Concurrency, and Coverage Artifact Sharing

freemo referenced this issue

2026-04-05 08:49:48 +00:00

[CA-AUTO] Project Owner — project-owner-1 — Session Tracker #2793

freemo referenced this issue