pre-commit.yaml

name: pre-commit

on:
  # Run on push to master
  push:
    branches:
      - master
  # Run on pull request actions
  pull_request:
    types: [opened, reopened, synchronize]
  # Manual trigger
  workflow_dispatch:

# Prevent parallel runs
concurrency:
  group: "${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}"
  cancel-in-progress: true

# Global env vars
env:
  PYTHON_VERSION: "3.12"

jobs:
  pre-commit:
    runs-on: ubuntu-latest
    steps:
      # Checkout code and keep creds for push
      - name: Checkout repo
        uses: actions/checkout@v4
        with:
          persist-credentials: true

      # Setup Python
      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ env.PYTHON_VERSION }}

      # Setup Node.js for JS hooks
      - name: Use Node.js 24.x
        uses: actions/setup-node@v3
        with:
          node-version: "24.x"

      # Cache NPM deps
      - name: Cache NPM
        uses: actions/cache@v3
        with:
          path: ~/.npm
          key: ${{ runner.os }}-npm-
          restore-keys: |
            ${{ runner.os }}-npm-
      # Cache pip for Python hook installs
      - name: Cache pip
        uses: actions/cache@v3
        with:
          path: ~/.cache/pip
          key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
          restore-keys: |
            ${{ runner.os }}-pip-
      # Install JS devDependencies
      - name: Install devDependencies
        run: npm install --legacy-peer-deps

      - name: Install specific setuptools version
        run: pip install setuptools==81.0.0

      # Run pre-commit in check-only mode (fail on any diffs)
      - name: Run pre-commit (check-only)
        uses: pre-commit/action@v3.0.1
        with:
          args: run --all-files --show-diff-on-failure