ship-it.yml

name: Ship it

on:
  workflow_dispatch:

jobs:
  ship-it:
    name: Ship it
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
        with:
          # Ensure full history is fetched to have a clear
          # path between next and master
          fetch-depth: 0
          ref: next

      - name: Check master can fast-forward to next
        run: |
          git fetch origin master
          if ! git merge-base --is-ancestor master next; then
            echo "::error::master cannot be fast-forwarded to next. Aborting."
            exit 1
          fi
      - name: Log commits to ship
        run: git log master..next --oneline

      - name: Move master to next branch
        run: |
          git checkout master
          git reset --hard next

      - name: Push updated master to origin
        run: |
          git push origin master
        env:
          GITHUB_TOKEN: ${{ secrets.SHIP_IT_TOKEN }}