docker.yml

# Builds a docker image when a commit is made. Also pushes the build if the branch is 'master' or 'development'.

# Tag pattern
# 'master'      - latest
# 'experimental' - experimental

name: Build and push docker (push/pull request)

on:
  workflow_dispatch:
  push:
    branches:
      - master
      - experimental
  pull_request:
    types: [opened, synchronize, reopened, ready_for_review]

env:
  DOCKER_PLATFORMS: linux/386,linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64

jobs:
  test-build-on-pull-request:
    if: github.event_name == 'pull_request'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Repo
        uses: actions/checkout@v3.5.2
        with:
          fetch-depth: 0
          ref: ${{github.event.pull_request.head.ref}}
          repository: ${{github.event.pull_request.head.repo.full_name}}
  
      - name: Set SPS_ALSA_EXPLORE_BRANCH env
        run: |
          SPS_ALSA_EXPLORE_BRANCH=$(git rev-parse --abbrev-ref HEAD)
          echo "Current SPS_ALSA_EXPLORE_BRANCH set to ${SPS_ALSA_EXPLORE_BRANCH}"
          echo "SPS_ALSA_EXPLORE_BRANCH=${SPS_ALSA_EXPLORE_BRANCH}" >> $GITHUB_ENV

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2.1.0

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2.5.0

      - name: Build
        uses: docker/build-push-action@v4.0.0
        with:
          context: ./
          file: ./Dockerfile
          push: false
          build-args: |
            SPS_ALSA_EXPLORE_BRANCH=${{ env.SPS_ALSA_EXPLORE_BRANCH }}

  build-and-publish:
    if: github.event_name != 'pull_request'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3.5.2
        with:
          fetch-depth: 0

      - name: Set SPS_ALSA_EXPLORE_BRANCH env.
        run: echo "SPS_ALSA_EXPLORE_BRANCH=${GITHUB_REF##*/}" >> $GITHUB_ENV

      - name: Is branch "master"?
        if: ${{ env.SPS_ALSA_EXPLORE_BRANCH == 'master' }}
        run: |
          echo "IMAGE_TAG_BASE=latest" >> $GITHUB_ENV

      - name: Is branch "experimental"?
        if: ${{ env.SPS_ALSA_EXPLORE_BRANCH == 'experimental' }}
        run: |
          echo "IMAGE_TAG_BASE=experimental" >> $GITHUB_ENV

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2.1.0

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2.5.0

      - name: Login to Docker Registry
        uses: docker/login-action@v3.1.0
        with:
          username: ${{ secrets.DOCKER_HUB_USERNAME }}
          password: ${{ secrets.DOCKER_HUB_PERSONAL_ACCESS_TOKEN }}
 
      - name: Build and push
        uses: docker/build-push-action@v4.0.0
        with:
          context: ./
          file: ./Dockerfile
          platforms: ${{ env.DOCKER_PLATFORMS }}
          push: ${{ env.IMAGE_TAG_BASE != '' }}
          tags: ${{ 'mikebrady/sps-alsa-explore' }}:${{ env.IMAGE_TAG_BASE }}
          build-args: |
            SPS_ALSA_EXPLORE_BRANCH=${{ env.SPS_ALSA_EXPLORE_BRANCH }}