Test Suite workflow (encode/uvicorn)
The Test Suite workflow from encode/uvicorn, explained and optimized by Latchkey.
- C
- CI health grade
- 69/100
- Health score
- 3
- Jobs per trigger
- 3
- Fixes in the optimized version
In short
- CI health: C (fair)
- The optimized version below points runs-on at Latchkey managed runners and adds run de-duplication and job timeouts.
What it does
This is the Test Suite workflow from the encode/uvicorn repository, a real project running GitHub Actions. It is shown here with attribution under its BSD-3-Clause license.
Below, Latchkey shows a faster, safer version produced by its optimization engine.
The workflow
name: Test Suite
on:
push:
branches: ["main"]
pull_request:
branches: ["main"]
jobs:
tests:
name: "Python ${{ matrix.python-version }} ${{ matrix.os }}"
runs-on: "${{ matrix.os }}"
timeout-minutes: 10
permissions:
contents: read
strategy:
fail-fast: false
matrix:
python-version: ["3.10", "3.11", "3.12", "3.13", "3.14", "3.14t"]
os: [windows-latest, ubuntu-latest, macos-latest]
steps:
- uses: "actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0" # v7.0.0
with:
persist-credentials: false
- name: Install uv
uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
with:
python-version: ${{ matrix.python-version }}
enable-cache: ${{ matrix.os != 'windows-latest' }}
- name: Install dependencies
run: scripts/install
shell: bash
- name: Run linting checks
run: scripts/check
if: "${{ matrix.os == 'ubuntu-latest'}}"
- name: "Build package & docs"
run: scripts/build
shell: bash
- name: "Run tests"
run: scripts/test
shell: bash
- name: "Enforce coverage"
run: scripts/coverage
shell: bash
docs-preview:
if: github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository
runs-on: ubuntu-latest
env:
HAS_CLOUDFLARE_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN != '' }}
permissions:
contents: read
pull-requests: write
environment:
name: cloudflare
url: ${{ steps.deploy.outputs.deployment-url }}
steps:
- uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
with:
persist-credentials: false
- name: Install uv
uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
with:
python-version: "3.12"
enable-cache: false
- name: Install dependencies
run: scripts/install
- name: Build docs
run: uv run zensical build
- name: Deploy preview to Cloudflare Workers
id: deploy
if: ${{ env.HAS_CLOUDFLARE_TOKEN == 'true' }}
uses: cloudflare/wrangler-action@ebbaa1584979971c8614a24965b4405ff95890e0 # v4.0.0
with:
apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
command: versions upload --tag pr-${{ github.event.pull_request.number }}
- name: Comment preview URL on PR
if: ${{ steps.deploy.outcome == 'success' }}
uses: thollander/actions-comment-pull-request@24bffb9b452ba05a4f3f77933840a6a841d1b32b # v3.0.1
with:
message: |
:book: Docs preview: ${{ steps.deploy.outputs.deployment-url }}
comment-tag: docs-preview
# https://github.com/marketplace/actions/alls-green#why
check:
if: always()
needs: [tests]
runs-on: ubuntu-latest
permissions:
contents: read
steps:
- name: Decide whether the needed jobs succeeded or failed
uses: re-actors/alls-green@05ac9388f0aebcb5727afa17fcccfecd6f8ec5fe # v1.2.2
with:
jobs: ${{ toJSON(needs) }}The same workflow, on Latchkey
Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.
name: Test Suite
on:
push:
branches: ["main"]
pull_request:
branches: ["main"]
concurrency:
group: ${{ github.workflow }}-${{ github.ref }}
cancel-in-progress: true
jobs:
tests:
name: "Python ${{ matrix.python-version }} ${{ matrix.os }}"
runs-on: "${{ matrix.os }}"
timeout-minutes: 10
permissions:
contents: read
strategy:
fail-fast: false
matrix:
python-version: ["3.10", "3.11", "3.12", "3.13", "3.14", "3.14t"]
os: [windows-latest, ubuntu-latest, macos-latest]
steps:
- uses: "actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0" # v7.0.0
with:
persist-credentials: false
- name: Install uv
uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
with:
python-version: ${{ matrix.python-version }}
enable-cache: ${{ matrix.os != 'windows-latest' }}
- name: Install dependencies
run: scripts/install
shell: bash
- name: Run linting checks
run: scripts/check
if: "${{ matrix.os == 'ubuntu-latest'}}"
- name: "Build package & docs"
run: scripts/build
shell: bash
- name: "Run tests"
run: scripts/test
shell: bash
- name: "Enforce coverage"
run: scripts/coverage
shell: bash
docs-preview:
timeout-minutes: 30
if: github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository
runs-on: ubuntu-latest
runs-on: latchkey-small
env:
HAS_CLOUDFLARE_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN != '' }}
permissions:
contents: read
pull-requests: write
environment:
name: cloudflare
url: ${{ steps.deploy.outputs.deployment-url }}
steps:
- uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
with:
persist-credentials: false
- name: Install uv
uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
with:
python-version: "3.12"
enable-cache: false
- name: Install dependencies
run: scripts/install
- name: Build docs
run: uv run zensical build
- name: Deploy preview to Cloudflare Workers
id: deploy
if: ${{ env.HAS_CLOUDFLARE_TOKEN == 'true' }}
uses: cloudflare/wrangler-action@ebbaa1584979971c8614a24965b4405ff95890e0 # v4.0.0
with:
apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
command: versions upload --tag pr-${{ github.event.pull_request.number }}
- name: Comment preview URL on PR
if: ${{ steps.deploy.outcome == 'success' }}
uses: thollander/actions-comment-pull-request@24bffb9b452ba05a4f3f77933840a6a841d1b32b # v3.0.1
with:
message: |
:book: Docs preview: ${{ steps.deploy.outputs.deployment-url }}
comment-tag: docs-preview
# https://github.com/marketplace/actions/alls-green#why
check:
timeout-minutes: 30
if: always()
needs: [tests]
runs-on: ubuntu-latest
runs-on: latchkey-small
permissions:
contents: read
steps:
- name: Decide whether the needed jobs succeeded or failed
uses: re-actors/alls-green@05ac9388f0aebcb5727afa17fcccfecd6f8ec5fe # v1.2.2
with:
jobs: ${{ toJSON(needs) }}
What changed
- Run on Latchkey managed runners with one line (
runs-on), which apply the fixes below automatically and self-heal transient failures. Each Linux x64 job moves to the Latchkey size matching its vCPU count,latchkey-smallfor a standard 2 vCPU runner; macOS, Windows and arm64 jobs stay as written. - Cancel superseded runs when a branch or PR gets a newer push.
- Add a job timeout so a hung step cannot burn hours of runner time.
Left runs-on as written on the tests job: matrix.os mixes Linux with Windows and macOS, which Latchkey does not run. Point only the Linux legs at Latchkey, for example with a matrix include entry that sets the runner.
This workflow runs 3 jobs (20 with the matrix expanded) per trigger. 8 of the 20 run on a standard GitHub-hosted Linux x64 runner, which in a private repository bills $0.006 a minute against $0.0025 on latchkey-small, 58% lower; in a public repository like this one they are free. 12 of the 20 run on Windows and macOS, which Latchkey does not offer, so those stay where they are. Estimate the monthly difference with your own run counts.
Actions used in this workflow
- astral-sh/setup-uv
- actions/checkout
- cloudflare/wrangler-action
- thollander/actions-comment-pull-request
- re-actors/alls-green