validate_cla_signature.yml

name: Enforce CLA Signature
# https://docs.github.com/en/actions/reference/context-and-expression-syntax-for-github-actions#github-context

on: 
  pull_request:
    branches:
      - main

jobs:
  validate-cla-signature:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version: [3.8]

    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 100
      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v2
        with:
          python-version: ${{ matrix.python-version }}
      - name: Setting temp directory
        run: | 
          mkdir ./.tmp
      - name: Getting commit details
        uses: wei/wget@v1
        with:
          args: -O ./.tmp/commitDetails.json ${{ toJSON(github.event.pull_request._links.commits.href) }}
      - name: Dump GitHub context
        env:
          GITHUB_CONTEXT: ${{ toJSON(github) }}
        run: | 
          echo "$GITHUB_CONTEXT" > ./.tmp/github.json
          cat ./.tmp/github.json
          echo "commit details: "
          cat ./.tmp/commitDetails.json
      - name: CLA signature check
        run: |
          which git
          if ! python ./.github/workflows/python/validate_cla_signature.py; then
              echo "Please sign the Contributer Licence Agreement before contributing to this repository."
              echo "You can sign the CLA here: http://brackets.io/contributor-license-agreement/"
              exit 1
          else
              echo "all good"
          fi