builder.yaml

name: Builder

env:
  BUILD_ARGS: "--test"
  MONITORED_FILES: "build.yaml config.yaml Dockerfile rootfs/etc/services.d/crowdsec/run rootfs/etc/services.d/ttyd/run rootfs/etc/services.d/crowdsec-firewall-bouncer/run"

on:
  push:
    branches:
      - main

jobs:
  init:
    runs-on: ubuntu-latest
    name: Initialize builds
    outputs:
      changed_addons: ${{ steps.changed_addons.outputs.addons }}
      changed: ${{ steps.changed_addons.outputs.changed }}
    steps:
      - name: Check out the repository
        uses: actions/checkout@v2.4.0

      - name: Get changed files
        id: changed_files
        uses: jitterbit/get-changed-files@v1

      - name: Find add-on directories
        id: addons
        uses: home-assistant/actions/helpers/find-addons@master

      - name: Get changed add-ons
        id: changed_addons
        run: |
          declare -a changed_addons
          for addon in ${{ steps.addons.outputs.addons }}; do
            if [[ "${{ steps.changed_files.outputs.all }}" =~ $addon ]]; then
              for file in ${{ env.MONITORED_FILES }}; do
                  if [[ "${{ steps.changed_files.outputs.all }}" =~ $addon/$file ]]; then
                    if [[ ! "${changed_addons[@]}" =~ $addon ]]; then
                      changed_addons+=("\"${addon}\",");
                    fi
                  fi
              done
            fi
          done
          changed=$(echo ${changed_addons[@]} | rev | cut -c 2- | rev)
          if [[ -n ${changed} ]]; then
            echo "Changed add-ons: $changed";
            echo "changed=true" >> $GITHUB_OUTPUT
            echo "addons=[$changed]" >> $GITHUB_OUTPUT
          else
            echo "No add-on had any monitored files changed (${{ env.MONITORED_FILES }})";
          fi
  build:
    needs: init
    runs-on: ubuntu-latest
    if: needs.init.outputs.changed == 'true'
    name: Build ${{ matrix.arch }} ${{ matrix.addon }} add-on
    strategy:
      matrix:
        addon: ${{ fromJson(needs.init.outputs.changed_addons) }}
        arch: ["aarch64", "amd64", "i386", "armhf", "armv7"]

    steps:
      - name: Check out repository
        uses: actions/checkout@v2.4.0

      - name: Get information
        id: info
        uses: home-assistant/actions/helpers/info@master
        with:
          path: "./${{ matrix.addon }}"
      
      - name: 🚀 Run Home Assistant Add-on Information
        id: information
        uses: frenck/action-addon-information@v1
        with:
          path: "./${{ matrix.addon }}"
      
      - name: ℹ️ Compose build flags
        id: flags
        run: |
          echo "date=$(date +"%Y-%m-%dT%H:%M:%SZ")" >> $GITHUB_OUTPUT
          from=$(yq --no-colors eval ".build_from.${{ matrix.arch }}" "${{ steps.information.outputs.build }}")
          echo "from=${from}" >> $GITHUB_OUTPUT
          if [[ "${{ matrix.arch}}" = "amd64" ]]; then
            echo "platform=linux/amd64" >> $GITHUB_OUTPUT
          elif [[ "${{ matrix.arch }}" = "i386" ]]; then
            echo "platform=linux/386" >> $GITHUB_OUTPUT
          elif [[ "${{ matrix.arch }}" = "armhf" ]]; then
            echo "platform=linux/arm/v6" >> $GITHUB_OUTPUT
          elif [[ "${{ matrix.arch }}" = "armv7" ]]; then
            echo "platform=linux/arm/v7" >> $GITHUB_OUTPUT
          elif [[ "${{ matrix.arch }}" = "aarch64" ]]; then
            echo "platform=linux/arm64/v8" >> $GITHUB_OUTPUT
          else
            echo "::error ::Could not determine platform for arch ${{ matrix.arch }}"
            exit 1
          fi

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1.2.0
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1.6.0

      - name: Check if add-on should be built
        id: check
        run: |
          if [[ "${{ steps.info.outputs.architectures }}" =~ ${{ matrix.arch }} ]]; then
             echo "build_arch=true" >> $GITHUB_OUTPUT
             echo "image=$(echo ${{ steps.info.outputs.image }} | cut -d'/' -f3)" >> $GITHUB_OUTPUT
             if [[ -z "${{ github.head_ref }}" ]] && [[ "${{ github.event_name }}" == "push" ]]; then
                 echo "BUILD_ARGS=" >> $GITHUB_ENV;
             fi
           else
             echo "${{ matrix.arch }} is not a valid arch for ${{ matrix.addon }}, skipping build";
             echo "build_arch=false" >> $GITHUB_OUTPUT
          fi
      - name: Login to GitHub Container Registry
        if: env.BUILD_ARGS != '--test'
        uses: docker/login-action@v1.12.0
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Build ${{ matrix.addon }} add-on
        if: steps.check.outputs.build_arch == 'true'
        uses: docker/build-push-action@v2.9.0
        with:
          push: true
          context: ./${{ matrix.addon }}
          tags: |
            ghcr.io/${{ github.repository_owner }}/${{ matrix.arch }}-addon-${{ matrix.addon }}:${{ steps.information.outputs.version }}
          platforms: ${{ steps.flags.outputs.platform }}
          build-args: |
            BUILD_ARCH=${{ matrix.arch }}
            BUILD_DATE=${{ steps.flags.outputs.date }}
            BUILD_FROM=${{ steps.flags.outputs.from }}
            BUILD_REF=${{ github.sha }}
            BUILD_REPOSITORY=${{ github.repository }}
            BUILD_VERSION=${{ needs.information.outputs.version }}
          labels: |
            org.opencontainers.image.source=${{ github.event.repository.html_url }}
            org.opencontainers.image.revision=${{ github.sha }}