linter.yml

name: Lint Code Base
on:
  pull_request:
    paths:
      - '**.cpp'
      - '**.c'
      - '**.h'
      - '**.py'
      - '**.js'
      - '**.cjs'
      - '**.mjs'
      - '**.ts'

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build:
    name: Lint Code Base
    runs-on: ubuntu-latest

    steps:
      - name: Fetch target branch and PR branch
        uses: actions/checkout@v4
        with:
          fetch-depth: 200
      - name: Find most recent ancestor of PR and target branch
        id: common_ancestor
        run: echo "commit_sha=$(git merge-base ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }})" >> $GITHUB_OUTPUT

      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup
        run: python3 -m venv .venv && .venv/bin/pip3 install black

      - name: Get a recent clang-format version
        uses: numworks/setup-llvm@latest

      # These are for prettier
      - name: Use Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
      - name: Install Node.js dependencies
        run: npm install

      - name: Lint files changed by PR
        run: make format BASE=${{ steps.common_ancestor.outputs.commit_sha }} CXXFORMATARGS="--dry-run --Werror" PYTHON=python3 PYFORMATARGS="--check" JSFORMATARGS="--check"