license-check.yml

# Copyright (c) 2020 Contributors to the Eclipse Foundation
#
# See the NOTICE file(s) distributed with this work for additional
# information regarding copyright ownership.
#
# This program and the accompanying materials are made available under the
# terms of the Eclipse Public License 2.0 which is available at
# http://www.eclipse.org/legal/epl-2.0
#
# SPDX-License-Identifier: EPL-2.0
name: license-check

on:
  # Run build for any PR
  pull_request:

jobs:
  check-license-header-year:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: jitterbit/get-changed-files@v1
        id: the-files
        continue-on-error: true
      - name: Printing added files
        run: |
          echo "Added:"
          echo "${{ steps.the-files.outputs.added }}"
      - name: Ensure license year for added files is the file's creation year
        shell: bash
        run: |
          included_file_endings=".*\.(java|xml|yml|ts|js)"
          current_year=$(date +'%Y')
          missing_counter=0
          for file in ${{ steps.the-files.outputs.added }}; do
            if [[ $file =~ $included_file_endings ]]; then
              file_creation_year=$(git log --format=%aD $file | tail -1 | awk '{print $4}')
              if grep -q "Copyright (c) $file_creation_year Contributors to the Eclipse Foundation" $file; then
                printf "\xE2\x9C\x94 $file\n"
              else
                printf "\xE2\x9D\x8C $file\n\tcopyright header with file creation year '$file_creation_year' is missing in added file\n"
                missing_counter=$(expr $missing_counter + 1)
              fi
            fi
          done
          exit $missing_counter