build_ghcr.yaml

name: Build container image for GHCR
on:
  push:
    branches:
      - main
  workflow_dispatch:

jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        base:
          - {directory: 'anvil-rstudio-bioconductor'}
          - {directory: 'anvil-rstudio-bioconductor-devel'}
    name: Build branch images
    runs-on: ubuntu-latest
    steps:
      - name: Free root space
        uses: almahmoud/free-root-space@v1
        with:
          verbose: true

      - uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Login to GHCR
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - uses: actions/setup-python@v4
        with:
          python-version: '3.10'

      - name: Set version
        id: version-meta
        run: |
          devversion="$(cat ${{ matrix.base.directory }}/dev_VERSION)"
          version="$(cat ${{ matrix.base.directory }}/VERSION)"
          if [ "$devversion" != "${devversion%"$version"*}" ]; then
            devversion="$(echo $version)"
          fi
          echo "CONTAINER_VERSION=$devversion" >> $GITHUB_OUTPUT

      - name: Get list of changed files if on push (check if VERSION changed)
        id: changed
        if: github.event_name == 'push'
        run: |
          git diff --name-only ${{ github.event.before }} ${{ github.event.after }} > tmpchanged
          if grep -xq "^${{ matrix.base.directory }}/VERSION$" tmpchanged; then
            echo "CHANGED=TRUE" >> $GITHUB_OUTPUT
          else
            echo "CHANGED=FALSE" >> $GITHUB_OUTPUT
          fi

      - name: Extract metadata for container image
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: ghcr.io/${{ github.repository_owner }}/${{ matrix.base.directory }}
          tags: |
            type=raw,value=${{ steps.version-meta.outputs.CONTAINER_VERSION }}

      - name: Build and push container image to GHCR
        uses: docker/build-push-action@v3
        with:
          context: ${{ matrix.base.directory }}
          file: ${{ matrix.base.directory }}/Dockerfile
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

      - name: Generate info JSON with Broad script
        if: steps.changed.outputs.CHANGED == 'TRUE'
        run: |
          mkdir -p ${{ matrix.base.directory }}/info
          mkdir -p /tmp/${{ matrix.base.directory }}
          docker run --name ${{ matrix.base.directory }} -d ${{ steps.meta.outputs.tags }}
          sed -i "s/##${{matrix.base.directory}}-VERSION##/$(cat ${{matrix.base.directory}}/VERSION)/g" config/conf.json
          bash scripts/generate_packages.sh ${{ matrix.base.directory }}
          # Remove spaces
          (cd ${{ matrix.base.directory }}/info && for file in *; do [[ "$file" == *" "* ]] && mv "$file" "${file// /}"; done)
          cp -r ${{ matrix.base.directory }}/info /tmp/${{ matrix.base.directory }}/

      - name: Push info
        if: steps.changed.outputs.CHANGED == 'TRUE'
        uses: nick-fields/retry@v2
        with:
          timeout_minutes: 10
          max_attempts: 50
          shell: bash
          command: |
            set -x
            git config --global --add safe.directory "$GITHUB_WORKSPACE"
            git pull origin ${GITHUB_REF#refs/heads/} || git reset --hard origin/${GITHUB_REF#refs/heads/}
            git config user.name github-actions
            git config user.email github-actions@github.com
            cp -r /tmp/${{ matrix.base.directory }}/info ${{ matrix.base.directory }}/
            git add ${{ matrix.base.directory }}
            git commit -m "Generated info for ${{ matrix.base.directory }}"
            git push