name: Monthly release
on:
  schedule:
    - cron: '0 0 1 * *'

jobs:
  create_ff_branch:
    name: Create Monthly release tag
    runs-on: ubuntu-latest

    steps:
      - id: date
        run: echo "::set-output name=date::$(date -d 'next month' +'%Y.%m.01')"

      - uses: actions/checkout@v2
        with:
        ref: ${{ steps.date.outputs.date }}
        fetch-depth: 0

      - run: git --no-pager log --no-decorate --oneline $(git describe --tags --abbrev=0)..HEAD > output.log
      
      - uses: actions/create-release@latest
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ steps.date.outputs.date }}
          release_name: ${{ steps.date.outputs.date }}
          draft: false
          prerelease: false
          body_path: output.log