release.yml

on:
  push:
    branches:
      - master

name: Create Release

jobs:
  build:
    name: Create Release
    runs-on: ubuntu-latest
    # Run on the 8th of each month
    if: "endsWith(github.event.head_commit.message, '08')"
    steps:
      - name: Get month name
        env:
          LAST_COMMIT_LOG: ${{ github.event.head_commit.message }}
        run: |
          echo "RELEASE_VERSION=${LAST_COMMIT_LOG: -8:4}.${LAST_COMMIT_LOG: -4:2}" >> $GITHUB_ENV
      - name: Checkout code
        uses: actions/checkout@v2
      - name: Create Release
        id: create_release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ env.RELEASE_VERSION }}
          release_name: ${{ format('Monthly release {0}', env.RELEASE_VERSION) }}
          draft: false
          prerelease: false