name: Build Docker image for ShellCrash

on:
  push:
    branches: [ master ]
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest

    permissions:
      contents: read

    steps:
      - name: Checkout
        uses: actions/checkout@v5
        with:
          fetch-depth: 1
          
      - name: Read version
        id: read_version
        run: echo "VERSION=$(cat version)" >> $GITHUB_ENV

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build and push (multi-arch)
        uses: docker/build-push-action@v6
        with:
          context: .
          file: Dockerfile
          platforms: |
            linux/386
            linux/amd64
            linux/arm64
            linux/arm/v7
          push: true
          tags: |
            ${{ secrets.DOCKERHUB_USERNAME }}/shellcrash:latest
            ${{ secrets.DOCKERHUB_USERNAME }}/shellcrash:${{ env.VERSION }}