build.yml

---
name: Build
on:
  # push:
  #  branches:
  #    - main
  pull_request:
    branches:
      - main
    types:
      - closed
      - opened
      - reopened
      - synchronize
      - auto_merge_enabled
  workflow_dispatch:
    inputs:
      rebuild:
        description: "Re build container?"
        required: true
        default: "false"
        type: choice
        options:
          - "true"
          - "false"
      no-cache:
        description: "Build docker images with no cache"
        default: false
        required: false
        type: boolean

jobs:
  builds:
    name: Container build
    runs-on: ubuntu-latest
    timeout-minutes: 5
    permissions:
      contents: read
      packages: write
    env:
      COMMIT_SHORT_SHA: null

    steps:
      - name: Checkout from repository
        uses: actions/checkout@v4.2.2

      - name: Set short git commit SHA
        run: |+
          set -eux

          calculatedSha=$(git rev-parse --short ${{ github.sha }})
          echo "COMMIT_SHORT_SHA=$calculatedSha" >> $GITHUB_ENV

      - uses: docker/metadata-action@v5
        id: meta
        with:
          images: ghcr.io/${{ github.repository }}
          tags: |
            # set latest tag for default branch
            type=raw,value=latest,enable={{is_default_branch}}

            # minimal (short sha)
            type=sha,enable=true,prefix=,format=short

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

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

      - name: Build and push
        uses: docker/build-push-action@v6.10.0
        with:
          context: .
          file: Dockerfile
          push: ${{ contains( github.event.pull_request.merged, true ) || inputs.rebuild == 'true' || github.event_name == 'workflow_dispatch' }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          no-cache: ${{ inputs.no-cache == true }}