build-docker.yml

name: Build - Docker

on:
  workflow_dispatch:
  pull_request:
    types: [opened, synchronize, reopened, ready_for_review]
    paths:
      - "Dockerfile"
      - ".dockerignore"
      - ".github/workflows/build-docker.yml"
      - "src/**"
  push:
    branches: [ $default-branch ]
    paths:
      - "Dockerfile"
      - ".dockerignore"
      - ".github/workflows/build-docker.yml"
      - "src/**"

permissions:
  contents: read
  pull-requests: read

env:
  LUKKA_RUN_VCPKG_SHA: "${{ vars.LUKKA_RUN_VCPKG_SHA != '' && vars.LUKKA_RUN_VCPKG_SHA || 'b3dd708d38df5c856fe1c18dc0d59ab771f93921' }}"
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  cancel-runs:
    if: ${{ github.event_name == 'push' || (github.event_name == 'pull_request' && github.event.pull_request.head.repo.fork == false) }}
    if: github.event_name == 'pull_request' && github.ref != 'refs/heads/main'
    runs-on: ubuntu-latest
    steps:
      - name: Cancel Previous Runs
        uses: styfle/cancel-workflow-action@main
        with:
          access_token: ${{ github.token }}

  docker:
    name: Docker Build & Push
    runs-on: ubuntu-latest

    concurrency:
      group: otclient-docker-${{ github.workflow }}-${{ github.ref }}
      cancel-in-progress: true

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

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

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      - name: Build and push Docker image with cache
        uses: docker/build-push-action@v5
        with:
          context: .
          file: Dockerfile
          push: ${{ 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