docker-build-publish.yml

# This workflow is provided via the organization template repository
#
# https://github.com/nextcloud/.github
# https://docs.github.com/en/actions/learn-github-actions/sharing-workflows-with-your-organization

name: Docker build and publish

on:
  pull_request:
  push:
    tags:
      - '**'

jobs:
  build_and_publish:
    runs-on: ubuntu-22.04

    # Only allowed to be run on nextcloud repositories
    if: ${{ github.repository_owner == 'nextcloud' }}

    permissions:
      packages: write
      contents: read

    steps:
      - name: Checkout app
        uses: actions/checkout@v4

      - name: Get app version
        id: appinfo
        uses: skjnldsv/xpath-action@7e6a7c379d0e9abc8acaef43df403ab4fc4f770c # master
        with:
          filename: appinfo/info.xml
          expression: "/info/version/text()"

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
        with:
          platforms: amd64,arm64

      - 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.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          context: .
          push: true
          platforms: linux/amd64,linux/arm64
          tags: |
            ghcr.io/${{ github.repository }}:latest
            ghcr.io/${{ github.repository }}:${{ fromJson(steps.appinfo.outputs.result).version }}
          cache-from: type=gha
          cache-to: type=gha,mode=max