build.yml

name: Build

on:
  push:
    branches:
    - master
  pull_request:

# Prevent more than one build of this workflow for a branch to be running at the
# same time, and if multiple are queued, only run the latest, cancelling any
# already running build. The exception being any protected branch, such as
# master, where a build for every commit will run.
concurrency:
  group: ${{ github.workflow }}-${{ github.ref_protected == 'true' && github.sha || github.ref }}
  cancel-in-progress: true

jobs:

  complete:
    if: always()
    needs: [latest, testing, future]
    runs-on: ubuntu-latest
    steps:
    - if: contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled')
      run: exit 1

  tag-prefix:
    if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
    runs-on: ubuntu-latest
    outputs:
      tag-prefix: ${{ steps.release.outputs.tag-prefix }}
    steps:
    - uses: actions/checkout@v2
      with:
        ref: ${{ github.event.pull_request.head.sha || github.sha }}
    - id: release
      run:
        count="$(git rev-list HEAD --count --first-parent)"
        echo "tag-prefix=v${count}-" >> $GITHUB_OUTPUT

  latest:
    needs: [tag-prefix]
    uses: ./.github/workflows/build-latest.yml
    secrets:
      DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
      DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
    with:
      tag-prefix: ${{ needs.tag-prefix.outputs.tag-prefix }}
      sha: ${{ github.event.pull_request.head.sha || github.sha }}

  testing:
    needs: [tag-prefix]
    uses: ./.github/workflows/build-testing.yml
    secrets:
      DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
      DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
    with:
      tag-prefix: ${{ needs.tag-prefix.outputs.tag-prefix }}
      sha: ${{ github.event.pull_request.head.sha || github.sha }}

  future:
    needs: [tag-prefix]
    uses: ./.github/workflows/build-future.yml
    secrets:
      DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
      DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
    with:
      tag-prefix: ${{ needs.tag-prefix.outputs.tag-prefix }}
      sha: ${{ github.event.pull_request.head.sha || github.sha }}