hugomods-docker/.github/workflows/build-nightly.yml

name: build-nightly

on:
  schedule:
    - cron:  '0 0/12 * * *'
  workflow_dispatch:
  push:
    paths:
      - '.github/workflows/build-nightly.yml'
      - 'docker/hugo/**'

env:
  PLATFORMS: linux/amd64,linux/arm64
  IMAGE_OWNER: hugomods
  IMAGE_NAME: hugo
  BRANCH_NAME: ${{ github.head_ref || github.ref_name }}

jobs:
  build-and-push-image:
    strategy:
      fail-fast: false
      matrix:
        user: ['root', 'hugo'] # default container user.
    runs-on: ubuntu-latest
    steps:
      # Checkout the main repository.
      - name: Checkout repository
        uses: actions/checkout@v4

      # Checkout the Hugo repository for building.
      - name: Checkout Hugo repository
        uses: actions/checkout@v4
        with:
          repository: gohugoio/hugo
          path: ./docker/hugo/src

      - name: Build meta
        id: build_meta
        run: |
          echo "date=$(date -u +%Y-%m-%dT%H:%M:%SZ)" >> $GITHUB_OUTPUT
          cd ./docker/hugo/src && echo "hash=$(git rev-parse HEAD)" >> $GITHUB_OUTPUT

      - name: LDFLAGS
        id: ldflags
        run: |
          HASH='github.com/gohugoio/hugo/common/hugo.commitHash=${{ steps.build_meta.outputs.hash }}'
          BUILD_DATE='github.com/gohugoio/hugo/common/hugo.buildDate=${{ steps.build_meta.outputs.date }}'
          VENDOR='github.com/gohugoio/hugo/common/hugo.vendorInfo=hugomods'
          echo "-X '$HASH' -X '$BUILD_DATE' -X '$VENDOR'"
          echo "flags=-X '$HASH' -X '$BUILD_DATE' -X '$VENDOR'">> $GITHUB_OUTPUT
      
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
        with:
          platforms: ${{ env.PLATFORMS }}

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
        with:
          platforms: ${{ env.PLATFORMS }}

      - name: Login to Docker Hub
        if: ${{ env.BRANCH_NAME == 'main' }}
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USER }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      
      - name: Login to GitHub Container Registry
        if: ${{ env.BRANCH_NAME == 'main' }}
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ env.IMAGE_OWNER }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          push: ${{ env.BRANCH_NAME == 'main' }}
          context: docker/hugo
          platforms: ${{ env.PLATFORMS }}
          file: docker/hugo/Dockerfile-ci
          tags: |
            hugomods/hugo:nightly${{ matrix.user == 'hugo' && '-non-root' || '' }}
            ghcr.io/hugomods/hugo:nightly${{ matrix.user == 'hugo' && '-non-root' || '' }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          build-args: |
            LDFLAGS=${{ steps.ldflags.outputs.flags }}
            BUILD_TAGS=extended,withdeploy
            USER=${{ matrix.user }}