image.yml

name: github packages

on:
  # Rebuild the container once every week
  schedule:
    - cron: "0 1 * * 1"
  push:
    branches:
      - "main"
    paths:
      - "Dockerfile"
      - ".github/workflows/image.yml"
  pull_request:
    paths:
      - "Dockerfile"
      - ".github/workflows/image.yml"
  workflow_dispatch:
env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}/gtk4

jobs:
  docker:
    permissions:
      contents: read
      packages: write
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Log in to the Container registry
        uses: docker/login-action@0d4c9c5ea7693da7b068278f7b52bda2a190a446
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@369eb591f429131d6889c46b94e711f089e6ca96
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            # set latest tag for main branch
            type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'main') }}

      - name: Build and push Docker image
        uses: docker/build-push-action@48aba3b46d1b1fec4febb7c5d0c644b249a11355
        with:
          push: ${{ github.event_name != 'pull_request' }}
          context: .
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}