docker-image-ci.yml

name: CI to Docker Hub

on:
  push:
    branches: [main]
    paths: 
      - '.github/workflows/docker-image-ci.yml'
      - '*/Dockerfile'
  pull_request:
    paths:
      - '.github/workflows/docker-image-ci.yml'
      - '*/Dockerfile'
  workflow_dispatch:

jobs:

  build:
    strategy:
      fail-fast: false
      matrix:
        version: [5.6]
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout
        uses: actions/checkout@v3
      -
        name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@v2
      -     
        name: Cache Docker layers
        uses: actions/cache@v3
        with:
          path: /tmp/.buildx-cache
          key: ${{ runner.os }}-buildx-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-buildx-
      -
        name: Login to DockerHub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKER_HUB_USERNAME }}
          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
      -
        name: Build and push
        id: docker_build
        uses: docker/build-push-action@v3
        with:
          context: ./
          file: ./swift-${{ matrix.version }}/Dockerfile
          builder: ${{ steps.buildx.outputs.name }}
          push: true
          tags: swiftgen/swift:${{ matrix.version }}
          cache-from: type=local,src=/tmp/.buildx-cache
          cache-to: type=local,dest=/tmp/.buildx-cache
      -
        name: Image digest
        run: echo ${{ steps.docker_build.outputs.digest }}