# main only

name: Integrate

on:
  push:
    branches: [master]

env:
  FORCE_COLOR: 1

jobs:
  tagIfNewVersion:
    name: Tag if new version
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v2
        with:
          # Ensure to have complete history of commits pushed with given push operation
          # It's loose and imperfect assumption that no more than 30 commits will be pushed at once
          fetch-depth: 30
          # Tag needs to be pushed with real user token, otherwise pushed tag won't trigger the actions workflow
          # Hence we're passing 'serverless-ci' user authentication token
          token: ${{ secrets.USER_GITHUB_TOKEN }}
      - name: Tag if new version
        if: github.event.before != '0000000000000000000000000000000000000000' # Skip on first commit
        run: |
          NEW_VERSION=`git diff -U0 ${{ github.event.before }} package.json | grep '"version": "' | tail -n 1 | grep -oE "[0-9]+\.[0-9]+\.[0-9]+"` || :
          if [ -n "$NEW_VERSION" ];
          then
            git tag v$NEW_VERSION
            git push --tags
          fi