CI workflow (lamaalrajih/kicad-mcp)
The CI workflow from lamaalrajih/kicad-mcp, explained and optimized by Latchkey.
CI health: C - fair
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What it does
This is the CI workflow from the lamaalrajih/kicad-mcp repository, a real project running GitHub Actions. It is shown here with attribution under its MIT license.
Below, Latchkey shows a faster, safer version produced by its optimization engine.
The workflow
name: CI
on:
push:
branches: [ main, develop ]
pull_request:
branches: [ main, develop ]
jobs:
lint:
runs-on: ubuntu-latest
name: Lint and Format
steps:
- uses: actions/checkout@v4
- name: Install uv
uses: astral-sh/setup-uv@v4
with:
enable-cache: true
- name: Set up Python 3.12
run: |
uv python install 3.12
uv python pin 3.12
- name: Install dependencies
run: uv sync --group dev
- name: Lint with ruff
run: uv run ruff check kicad_mcp/ tests/
- name: Check formatting with ruff
run: uv run ruff format --check kicad_mcp/ tests/
test:
runs-on: ${{ matrix.os }}
strategy:
fail-fast: false
matrix:
os: [ubuntu-latest, macos-latest]
python-version: ["3.10", "3.11", "3.12", "3.13"]
exclude:
- os: macos-latest
python-version: "3.10"
name: Test Python ${{ matrix.python-version }} on ${{ matrix.os }}
steps:
- uses: actions/checkout@v4
- name: Install uv
uses: astral-sh/setup-uv@v4
with:
enable-cache: true
- name: Set up Python ${{ matrix.python-version }}
run: |
uv python install ${{ matrix.python-version }}
uv python pin ${{ matrix.python-version }}
- name: Install dependencies
run: uv sync --group dev
- name: Run tests
run: uv run python -m pytest tests/ -v --cov=kicad_mcp --cov-report=xml --cov-fail-under=30
- name: Upload coverage to Codecov
uses: codecov/codecov-action@v4
if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.12'
with:
file: ./coverage.xml
fail_ci_if_error: false
security:
runs-on: ubuntu-latest
name: Security Scan
steps:
- uses: actions/checkout@v4
- name: Install uv
uses: astral-sh/setup-uv@v4
with:
enable-cache: true
- name: Set up Python 3.12
run: |
uv python install 3.12
uv python pin 3.12
- name: Install dependencies
run: uv sync --group dev
- name: Run security scan
run: uv run bandit -r kicad_mcp/
build:
runs-on: ubuntu-latest
name: Build Package
needs: [lint, test]
steps:
- uses: actions/checkout@v4
- name: Install uv
uses: astral-sh/setup-uv@v4
with:
enable-cache: true
- name: Set up Python 3.12
run: |
uv python install 3.12
uv python pin 3.12
- name: Build package
run: uv build
- name: Upload artifacts
uses: actions/upload-artifact@v4
with:
name: dist
path: dist/
The same workflow, on Latchkey
Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.
name: CI on: push: branches: [ main, develop ] pull_request: branches: [ main, develop ] concurrency: group: ${{ github.workflow }}-${{ github.ref }} cancel-in-progress: true jobs: lint: timeout-minutes: 30 runs-on: latchkey-small name: Lint and Format steps: - uses: actions/checkout@v4 - name: Install uv uses: astral-sh/setup-uv@v4 with: enable-cache: true - name: Set up Python 3.12 run: | uv python install 3.12 uv python pin 3.12 - name: Install dependencies run: uv sync --group dev - name: Lint with ruff run: uv run ruff check kicad_mcp/ tests/ - name: Check formatting with ruff run: uv run ruff format --check kicad_mcp/ tests/ test: timeout-minutes: 30 runs-on: ${{ matrix.os }} strategy: fail-fast: false matrix: os: [ubuntu-latest, macos-latest] python-version: ["3.10", "3.11", "3.12", "3.13"] exclude: - os: macos-latest python-version: "3.10" name: Test Python ${{ matrix.python-version }} on ${{ matrix.os }} steps: - uses: actions/checkout@v4 - name: Install uv uses: astral-sh/setup-uv@v4 with: enable-cache: true - name: Set up Python ${{ matrix.python-version }} run: | uv python install ${{ matrix.python-version }} uv python pin ${{ matrix.python-version }} - name: Install dependencies run: uv sync --group dev - name: Run tests run: uv run python -m pytest tests/ -v --cov=kicad_mcp --cov-report=xml --cov-fail-under=30 - name: Upload coverage to Codecov uses: codecov/codecov-action@v4 if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.12' with: file: ./coverage.xml fail_ci_if_error: false security: timeout-minutes: 30 runs-on: latchkey-small name: Security Scan steps: - uses: actions/checkout@v4 - name: Install uv uses: astral-sh/setup-uv@v4 with: enable-cache: true - name: Set up Python 3.12 run: | uv python install 3.12 uv python pin 3.12 - name: Install dependencies run: uv sync --group dev - name: Run security scan run: uv run bandit -r kicad_mcp/ build: timeout-minutes: 30 runs-on: latchkey-small name: Build Package needs: [lint, test] steps: - uses: actions/checkout@v4 - name: Install uv uses: astral-sh/setup-uv@v4 with: enable-cache: true - name: Set up Python 3.12 run: | uv python install 3.12 uv python pin 3.12 - name: Build package run: uv build - name: Upload artifacts uses: actions/upload-artifact@v4 with: name: dist path: dist/
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.
This workflow runs 4 jobs (11 with the matrix expanded) per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.