name: DCO

on:
  push:
    branches: [ "main" ]
  pull_request:
    branches: [ "main" ]
  workflow_dispatch:

env:
  CARGO_UNSTABLE_SPARSE_REGISTRY: true
  CARGO_TERM_COLOR: always

jobs:
  check-commit-signatures:
    name: Check commit signatures
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Check if commit is signed
        run: |
          COMMIT=$(git log -1)
          if echo "$COMMIT" | grep -q "Author: "; then
              echo "Commit is signed."
          else
              echo "Commit is NOT signed."
              exit 1
          fi
      - name: Print author's information
        run: |
          AUTHOR_NAME=$(git log -1 --format='%an')
          AUTHOR_EMAIL=$(git log -1 --format='%ae')
          echo "Author's name: $AUTHOR_NAME"
          echo "Author's email: $AUTHOR_EMAIL"