docker.yml

name: Docker

on:
  pull_request:
    types: [opened, synchronize, reopened]
    paths:
      - "Dockerfile"
      - "entrypoint.sh"
      - ".github/workflows/docker.yml"
  push:
    branches: [master]
    paths:
      - "Dockerfile"
      - "entrypoint.sh"
      - ".github/workflows/docker.yml"
  workflow_dispatch:

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build:
    name: Build Docker image
    runs-on: ubuntu-latest
    timeout-minutes: 15
    permissions:
      contents: read
      packages: write
    steps:
      - name: Checkout
        uses: actions/checkout@v7

      - name: PHP-CS-Fixer version
        id: version
        run: echo "version=$(sed -n 's/^ARG PHP_CS_FIXER_VERSION=//p' Dockerfile)" >> "$GITHUB_OUTPUT"

      - name: Log in to Container Registry
        if: github.ref == 'refs/heads/master' && github.event_name != 'pull_request'
        uses: docker/login-action@v4
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Docker metadata
        id: meta
        uses: docker/metadata-action@v6
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=raw,value=v${{ steps.version.outputs.version }},enable={{is_default_branch}}
            type=sha,format=long

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4

      - name: Build and push
        uses: docker/build-push-action@v7
        with:
          context: .
          platforms: linux/amd64
          provenance: false
          push: ${{ github.ref == 'refs/heads/master' && github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max