## %CopyrightBegin%
##
## Copyright Ericsson AB 2024. All Rights Reserved.
##
## Licensed under the Apache License, Version 2.0 (the "License");
## you may not use this file except in compliance with the License.
## You may obtain a copy of the License at
##
##     http://www.apache.org/licenses/LICENSE-2.0
##
## Unless required by applicable law or agreed to in writing, software
## distributed under the License is distributed on an "AS IS" BASIS,
## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
## See the License for the specific language governing permissions and
## limitations under the License.
##
## %CopyrightEnd%

## This workflow continually scan the master branch to make sure that no files
## are added without a copyright notice and license.

name: Check license header

on:
  pull_request:
  push:

permissions:
  contents: read
  pull-requests: read

jobs:
  run-scan:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # ratchet:actions/checkout@v4.2.2
      - name: Check which files have been added
        uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # ratchet:dorny/paths-filter@v3.0.2
        id: new-files
        with:
          predicate-quantifier: 'every'
          filters: |
              new:
                  - added: '**'
                  - '!**/*.beam'
                  - '!**/*.exe'
                  - '!**/*.config.cache.static'
          ## OTP-27.0 tag as base
          base: 601a012837ea0a5c8095bf24223132824177124d
          list-files: shell

      - uses: erlef/setup-beam@5304e04ea2b355f03681464e683d92e3b2f18451 # ratchet:erlef/setup-beam@v1
        with:
          otp-version: '27.1'

      - name: License Compliance Check
        run: |
            pip install scancode-toolkit==32.3.0
            scancode-reindex-licenses --additional-directory scripts/licensedetection/
            scripts/scan-code.escript --file-or-dir "${{ steps.new-files.outputs.new_files }}" \
                --sarif results.sarif

      - name: "Upload artifact"
        if: ${{ !cancelled() }}
        uses: actions/upload-artifact@4cec3d8aa04e39d1a68397de0c4cd6fb9dce8ec1 # v4.4.3 ratchet:actions/upload-artifact@v4
        with:
            name: SARIF file
            path: results.sarif
          
  upload-scan:
    needs: run-scan
    runs-on: ubuntu-latest
    if: ${{ !cancelled() && github.repository == 'erlang/otp' }}
    permissions:
      # Required to upload SARIF file to CodeQL.
      # See: https://github.com/github/codeql-action/issues/2117
      actions: read
      # Require writing security events to upload SARIF file to security tab
      security-events: write
      # Only need to read contents
      contents: read
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # ratchet:actions/checkout@v4.2.2
      - name: Download sarif file
        uses: actions/download-artifact@cc203385981b70ca67e1cc392babf9cc229d5806 # ratchet:actions/download-artifact@v4.1.9
      # Upload the results to GitHub's code scanning dashboard.
      - name: "Upload to code-scanning"
        if: ${{ !cancelled() }}
        uses: github/codeql-action/upload-sarif@6bb031afdd8eb862ea3fc1848194185e076637e5 # ratchet:github/codeql-action/upload-sarif@v3
        with:
          sarif_file: "SARIF file/results.sarif"
