name: licensecheck

on:
  push:
    branches: [ master ]
    paths:
      - '.github/workflows/licensecheck.yml'
      - '**.go'
  pull_request:
    branches: [ master ]
    paths:
      - '.github/workflows/licensecheck.yml'
      - '**.go'

permissions:
  contents: read

jobs:
  golang:
    name: golang
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Install licensecheck
        run: |
          sudo apt-get -y update
          sudo apt-get -y install licensecheck

      - id: licensecheck
        name: Check licenses
        run: |
          {
            echo 'CHECK_RESULT<<EOF'
            licensecheck *.go */*.go
            echo EOF
          } >> "$GITHUB_ENV"

      - name: Check for missing licenses
        run: |
          MISSING=$(echo "$CHECK_RESULT" | grep UNKNOWN || true)
          if [ -n "$MISSING" ]; then \
            echo "$MISSING"; \
            exit 1; \
          fi