ship-it.yml

name: Ship it

on:
  workflow_dispatch:

jobs:
  ship-it:
    name: Ship it
    runs-on: ubuntu-22.04-arm
    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
          # This is required to allow the final push to trigger dependent workflows
          # The token is a PAT with the following permissions:
          # - Read access to metadata
          # - Read and Write access to code
          # See https://stackoverflow.com/a/64078507/1618881
          token: ${{ secrets.SHIP_IT_TOKEN }}

      - name: Checkout master branch
        run: |
          git fetch origin master
          git checkout master

      - name: Log commits to be shipped
        id: commits-to-ship
        run: |
          git log --oneline master..next
          echo "count=$(git log --oneline master..next | wc -l)" >> $GITHUB_OUTPUT

      - name: Fast-forward master to next
        if: steps.commits-to-ship.outputs.count != '0'
        run: git merge --ff-only next

      - name: Push updated master to origin
        if: steps.commits-to-ship.outputs.count != '0'
        run: git push origin master