CI workflow (mopidy/mopidy-spotify)
The CI workflow from mopidy/mopidy-spotify, explained and optimized by Latchkey.
CI health: C - fair
Point runs-on at Latchkey and get run de-duplication, job timeouts, SHA-pinned actions, self-healing for flaky steps, and up to 58% lower cost, applied automatically.
What it does
This is the CI workflow from the mopidy/mopidy-spotify repository, a real project running GitHub Actions. It is shown here with attribution under its Apache-2.0 license.
Below, Latchkey shows a faster, safer version produced by its optimization engine.
The workflow
name: CI
on:
pull_request:
push:
branches:
- main
workflow_dispatch:
jobs:
build:
name: Build
runs-on: ubuntu-24.04
steps:
- uses: actions/checkout@v6
- uses: hynek/build-and-inspect-python-package@v2
main:
strategy:
fail-fast: false
matrix:
include:
- name: "pytest (3.13)"
python: "3.13"
tox: "3.13"
- name: "pytest (3.14)"
python: "3.14"
tox: "3.14"
coverage: true
- name: "pyright"
python: "3.14"
tox: "pyright"
- name: "ruff check"
python: "3.14"
tox: "ruff-check"
- name: "ruff format"
python: "3.14"
tox: "ruff-format"
name: ${{ matrix.name }}
runs-on: ubuntu-24.04
container: ghcr.io/mopidy/ci:latest
steps:
- uses: actions/checkout@v6
- name: Fix home dir permissions to enable pip caching
run: chown -R root /github/home
- uses: actions/setup-python@v6
with:
python-version: ${{ matrix.python }}
cache: pip
allow-prereleases: true
- run: python -m pip install tox
- run: python -m tox -e ${{ matrix.tox }}
if: ${{ ! matrix.coverage }}
- run: python -m tox -e ${{ matrix.tox }} -- --cov-report=xml
if: ${{ matrix.coverage }}
- uses: codecov/codecov-action@v6
if: ${{ matrix.coverage }}
with:
token: ${{ secrets.CODECOV_TOKEN }}
The same workflow, on Latchkey
Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.
name: CI on: pull_request: push: branches: - main workflow_dispatch: concurrency: group: ${{ github.workflow }}-${{ github.ref }} cancel-in-progress: true jobs: build: timeout-minutes: 30 name: Build runs-on: latchkey-small steps: - uses: actions/checkout@v6 - uses: hynek/build-and-inspect-python-package@v2 main: timeout-minutes: 30 strategy: fail-fast: false matrix: include: - name: "pytest (3.13)" python: "3.13" tox: "3.13" - name: "pytest (3.14)" python: "3.14" tox: "3.14" coverage: true - name: "pyright" python: "3.14" tox: "pyright" - name: "ruff check" python: "3.14" tox: "ruff-check" - name: "ruff format" python: "3.14" tox: "ruff-format" name: ${{ matrix.name }} runs-on: latchkey-small container: ghcr.io/mopidy/ci:latest steps: - uses: actions/checkout@v6 - name: Fix home dir permissions to enable pip caching run: chown -R root /github/home - uses: actions/setup-python@v6 with: python-version: ${{ matrix.python }} cache: pip allow-prereleases: true - run: python -m pip install tox - run: python -m tox -e ${{ matrix.tox }} if: ${{ ! matrix.coverage }} - run: python -m tox -e ${{ matrix.tox }} -- --cov-report=xml if: ${{ matrix.coverage }} - uses: codecov/codecov-action@v6 if: ${{ matrix.coverage }} with: token: ${{ secrets.CODECOV_TOKEN }}
What changed
- Run on Latchkey managed runners with one line (
runs-on), which apply the fixes below automatically and self-heal transient failures. This example useslatchkey-small; pick the runner size that fits the job. - 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.
2 third-party actions are referenced by a movable tag. Pin them to the commit SHA (Latchkey resolves and applies this automatically) so a repointed tag cannot change what runs.
What Latchkey heals here
This workflow has steps that commonly fail on transient issues (network, registries, flaky browsers). On Latchkey managed runners they are detected, retried, and self-healed instead of failing your build:
- Dependency installs
This workflow runs 2 jobs per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.