on: [pull_request]

permissions:
  contents: read
  pull-requests: read
  checks: write

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

jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Write git diff to temp file
      run: |
        git fetch origin
        git diff origin/${{ github.base_ref }} --unified=0 *.md translations/*/*.md \
        > ${{ runner.temp }}/diff.md
    - uses: DavidAnson/markdownlint-cli2-action@v17
      with:
        globs: "${{ runner.temp }}/diff.md"