debian-builder-workflow.yaml

#####################################################################
# Description:  debian-builder-workflow.yaml
#
#               This file, 'debian-builder-workflow.yaml', implements
#               the builder/tester CI/CD workflow for Debian based
#               systems.
#
# Copyright (C) 2020 -     Jakub Fišer <jakub DOT fiser AT eryaf DOT com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
#
######################################################################

name: Test application and publish packages (Debian linux)

on:
  push:
    branches:
    - '*'
    tags-ignore:
    - 'v*'

  pull_request:
    branches:
    - '*'

jobs:
  prepareState:
    name: Preparatory controlling job
    runs-on: ubuntu-20.04
    outputs:
      BuildDockerImages: ${{ env.BuildDockerImage }}
      HasCloudsmithToken: ${{ steps.cloudsmith_checker.outputs.tokenPresent }}
      HasSigningKey: ${{ steps.signing_key_checker.outputs.keyPresent }}
      MainMatrix: ${{ steps.data_matrix_normalizer.outputs.matrix }}
      OsVersionsMatrix: ${{ steps.data_matrix_normalizer.outputs.osMatrix }}
      HasSpecificDockerRegistry: ${{ steps.docker_registry_checker.outputs.hasRegistry }}
      Timestamp: ${{ steps.timestamp_exporter.outputs.timestamp }}

    steps:
    - name: Show GitHub context as a JSON
      run: |
        echo "$GITHUB_CONTEXT"
      env:
        GITHUB_CONTEXT: ${{ toJson(github) }}

    - name: Cancel any previous run of the same workflow on the same branch
      uses: styfle/cancel-workflow-action@0.4.1
      with:
        access_token: ${{ github.token }}

      # Fetch the whole history here as there is no way of knowing how many
      # commits there were in push event
    - name: Deep clone Machinekit-HAL repository
      uses: actions/checkout@v2
      with:
        ref: '${{ github.event.ref }}'
        fetch-depth: '0'
        path: 'machinekit-hal'

      # DANGER: Changing value imageNameRoot in settings JSON will mean
      #         a new Docker image name!
      #         Public Docker images in GitHub Packages cannot be deleted,
      #         every change will stay visible 'forever' in form of old packages
    - name: >
        Prepare data matrix with operating system and architecture combinations
        from JSON file
      id: system_combinations_normalizer
      run: |
        IMAGE_NAME_ROOT=$(jq -r '.imageNameRoot' ${BASE_JSON_FILE})
        ALLOWED_COMBINATIONS=$(cat ${BASE_JSON_FILE} | \
          jq -c --arg IMAGE_NAME_ROOT "$IMAGE_NAME_ROOT" \
         '{include: [.allowedCombinations[]+.osVersions[] |
          select(.osVersionNumber == .releaseNumber) |
          ((.architecture|ascii_downcase) + "_" + (.osVersionNumber|tostring))
            as $tag |
          (.distributionID|ascii_downcase) as $distribution |
          {osDistribution: .distributionID,
          osVersionNumber: .osVersionNumber,
          architecture: .architecture,
          osVersionCodename: .distributionCodename,
          dockerImage: {basename: $IMAGE_NAME_ROOT |
              sub( "@DISTRIBUTION@"; $distribution ) |
              sub( "@TAG@"; $tag ),
            tag: $tag}
          }]}')
        echo "::set-output name=matrix::$ALLOWED_COMBINATIONS"
        printf "%b"                                                            \
               "JSON for allowed combinations of OS and architecture:\n"       \
               "===========================================================\n"
        echo "$ALLOWED_COMBINATIONS" | jq '.'
      env:
        BASE_JSON_FILE: './machinekit-hal/debian/buildsystem/debian-distro-settings.json'

    - name: Download data from Github Packages Docker registry
      id: docker_data_downloader
      run: |
        HEADERS=('-H' "Authorization: Bearer $AUTHORIZATION_TOKEN")
        HEADERS+=('-H' "Accept: application/vnd.docker.distribution.manifest.v2+json")
        readarray -t test_array < <(echo "$INPUT_JSON" | jq -c -r \
          '.include[].dockerImage.basename')
        IMAGE_DATA="[]"
        for image in ${test_array[@]}
        do
          IMAGE_NAME="$IMAGE_PREFIX/$image"
          printf "Querying for Docker image %s/%s:%s\n" \
                 "$DOCKER_BASE_ADDRESS"                 \
                 "$IMAGE_NAME"                          \
                 "$DOCKER_TAG"
          ADDRESS="$API_BASE_ADDRESS/$IMAGE_NAME/manifests/$DOCKER_TAG"
          MANIFEST_JSON=$(curl -sL "${HEADERS[@]}" "$ADDRESS")
          DIGEST=$(jq -r '.config.digest | select(. != null)' \
            <<< "$MANIFEST_JSON")
          if [[ ! -z ${DIGEST} ]]
          then
            ADDRESS="$API_BASE_ADDRESS/$IMAGE_NAME/blobs/$DIGEST"
            BLOB_JSON=$(curl -sL "${HEADERS[@]}" "$ADDRESS")
            LABELS_JSON=$(jq -c '.config.Labels' <<< "$BLOB_JSON")
            VCS_BRANCH=$(echo "$LABELS_JSON" | jq -r \
              '.["io.machinekit.machinekit-hal.vcs-branch"] | select(. != null)')
            VCS_REF=$(echo "$LABELS_JSON" | jq -r \
              '.["io.machinekit.machinekit-hal.vcs-ref"] | select(. != null)')
          else
            WARNING=$(printf "%b"                                       \
                             "Docker image $image:$DOCKER_TAG does not" \
                             " exist in registry $DOCKER_BASE_ADDRESS"  \
                             "/$IMAGE_PREFIX\n")
            echo "::warning::$WARNING"
            echo "BuildDockerImage=true" >> $GITHUB_ENV
            printf "Going to force rebuild of all Docker images!\n"
            exit 0
          fi
          IMAGE_DATA=$(jq -c --arg BASENAME "$image"                       \
            --arg VCS_BRANCH "$VCS_BRANCH" --arg VCS_REF "$VCS_REF"        \
            --arg DIGEST "$DIGEST" '. += [{basename: $BASENAME, vcsBranch:
            $VCS_BRANCH, vcsRef: $VCS_REF, imageDigest: $DIGEST}]'         \
            <<< "$IMAGE_DATA")
        done
        printf "%b"                                         \
               "All images present in registry, no missing" \
               " packages waiting to be build.\n"
        echo "::set-output name=image_data::$IMAGE_DATA"
      env:
        AUTHORIZATION_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        API_BASE_ADDRESS: "https://docker.pkg.github.com/v2"
        DOCKER_BASE_ADDRESS: "docker.pkg.github.com"
        DOCKER_TAG: 'latest'
        IMAGE_PREFIX: '${{ github.repository }}'
        INPUT_JSON: '${{ steps.system_combinations_normalizer.outputs.matrix }}'

    - name: >
        Check for correctness of branch and git commit SHA metadata stored in
        Docker images labels
      id: docker_metadata_normalizer
      if: env.BuildDockerImage != 'true'
      run: |
        COMMON_REF=$(jq -r '[.[] | .vcsRef] | unique |
          if (. as $ref | "" | IN($ref[])) or
          (. | length > 1) then -1 else (.[]) end' <<< "$INPUT_JSON")
        if [[ "$COMMON_REF" == "-1" ]]
        then
          DOCKER_GIT_TABLE=$(jq -r --arg DOCKER_TAG "$DOCKER_TAG"        \
            --arg DOCKER_PREFIX "$DOCKER_PREFIX"                         \
            '. | map("Docker image " + $DOCKER_PREFIX +
            .basename + ":" + $DOCKER_TAG + " has git SHA " + .vcsRef) |
            join(",\n")' <<< "$INPUT_JSON")
          WARNING=$(printf "%b"                                             \
                           "Some cached Docker images have invalid vcs-ref" \
                           " label metadatafor current run.\n"              \
                           "Found data:\n"                                  \
                           "============================================\n" \
                           "$DOCKER_GIT_TABLE\n")
          echo "::warning::$WARNING"
          echo "BuildDockerImage=true" >> $GITHUB_ENV
          printf "Going to force rebuild of all Docker images!\n"
          exit 0
        fi
        printf "%b"                                                        \
               "All cached Docker images have valid vcs-ref ($COMMON_REF)" \
               " labels.\n"
        echo "::set-output name=git_sha::$COMMON_REF"
      env:
        INPUT_JSON: '${{ steps.docker_data_downloader.outputs.image_data }}'
        DOCKER_PREFIX: 'docker.pkg.github.com/${{ github.repository }}'
        DOCKER_TAG: 'latest'
      working-directory: ./machinekit-hal

    - name: >
        Check if the Git commit from which cached Docker image set was built
        exists in the current Git history
      if: env.BuildDockerImage != 'true'
      run: |
        if git cat-file -e ${GIT_COMMIT_SHA} 2> /dev/null
        then
          printf "%b"                                                       \
                 "Git commit $GIT_COMMIT_SHA from which the current cached" \
                 " Docker images were built can be found in history.\n"
        else
          printf "%b"                                                       \
                 "Git commit $GIT_COMMIT_SHA from which the current cached" \
                 " Docker images were built cannot be found in history.\n"  \
                 "Going to force rebuild of all Docker images!\n"
          echo "BuildDockerImage=true" >> $GITHUB_ENV
        fi
      env:
        GIT_COMMIT_SHA: ${{ steps.docker_metadata_normalizer.outputs.git_sha }}
      working-directory: ./machinekit-hal

    - name: Check if Docker images related files were changed in this event
      if: env.BuildDockerImage != 'true'
      run: |
        CHANGED_FILES=$(git diff-tree --no-commit-id --name-only -r \
                        ${BEFORE_COMMIT_SHA} HEAD)
        printf "%b"                                                            \
               "Found changed files in this event:\n"                          \
               "$CHANGED_FILES\n"                                              \
               "==========================================================\n"
        while IFS= read -r line; do
          if [[ $line =~ $DOCKER_REGEX ]]
          then
            printf "%b"                                               \
                   "Found file $line matching the regular expression" \
                   " for Debian builder files.\n"
            echo "BuildDockerImage=true" >> $GITHUB_ENV
            exit 0
          fi
        done <<< "$CHANGED_FILES"
        printf "%b"                                             \
               "No changes in Debian builder files were found," \
               " not going to force rebuild.\n"
      env:
        BEFORE_COMMIT_SHA: ${{ steps.docker_metadata_normalizer.outputs.git_sha }}
        DOCKER_REGEX: '^debian/.{1,}$'
      working-directory: ./machinekit-hal

    - name: Prepare matrixes for creation of following jobs
      id: data_matrix_normalizer
      run: |
        MAIN_MATRIX=""
        if [[ "${{ env.BuildDockerImage }}" != "true" ]]
        then
          MAIN_MATRIX=$(jq -c --argjson DOCKER_METADATA "$DOCKER_METADATA_JSON" \
            '.include[].dockerImage |= . as $base_matrix |
            $base_matrix + ($DOCKER_METADATA[] |
            select(.basename == $base_matrix.basename))'                        \
            <<< "$SUPPORTED_SYSTEMS_JSON")
        else
          MAIN_MATRIX="$SUPPORTED_SYSTEMS_JSON"
        fi
        OS_MATRIX=$(jq -c '{include: [.include[] |
          select(.architecture == "amd64")]}' <<< "$MAIN_MATRIX")
        echo "::set-output name=matrix::$MAIN_MATRIX"
        echo "::set-output name=osMatrix::$OS_MATRIX"
        printf "%b"                                                            \
               "JSON string for Main Matrix:\n"                                \
               "===========================================================\n"
        jq '.' <<< "$MAIN_MATRIX"
        printf "%b"                                                            \
               "JSON string for Runtests Matrix:\n"                            \
               "===========================================================\n"
        jq '.' <<< "$OS_MATRIX"
      env:
        SUPPORTED_SYSTEMS_JSON: '${{ steps.system_combinations_normalizer.outputs.matrix }}'
        DOCKER_METADATA_JSON: '${{ steps.docker_data_downloader.outputs.image_data }}'

    - name: >
        Check if Cloudsmith authorization token is present in GitHub secrets
        storage
      if: github.event_name == 'push'
      id: cloudsmith_checker
      run: |
        if ! [ -z "$CLOUDSMITH_TOKEN" ]
        then
          printf "%b" \
                 "Cloudsmith.io authorization token found in GitHub secret" \
                 " storage, will try to upload\n"
          echo "::set-output name=tokenPresent::true"
        else
          printf "%b" \
                 "Cloudsmith.io authorization token not found in GitHub" \
                 " secret storage\n"
          echo "::set-output name=tokenPresent::false"
        fi
      env:
        CLOUDSMITH_TOKEN: ${{ secrets.CLOUDSMITH_TOKEN }}

    - name: Check if signing key is present in GitHub secrets storage
      if: github.event_name == 'push'
      id: signing_key_checker
      run: |
        if ! [ -z "$SIGNING_KEY" ]
        then
          printf "Signing key found in GitHub secret storage, will try to sign\n"
          echo "::set-output name=keyPresent::true"
        else
          printf "Signing key not found in GitHub secret storage\n"
          echo "::set-output name=keyPresent::false"
        fi
      env:
        SIGNING_KEY: ${{ secrets.SIGNING_KEY }}

      # TODO: Needs redo so the input data (DOCKER_REGISTRY_NAME etc.) are stored
      # in Github secrets storage vault as a single JSON secret (because this
      # implementation is broken)
    - name: >
        Check if specific Docker Registry data is present in GitHub secrets
        storage
      if: env.BuildDockerImage == 'true' && github.event_name == 'push'
      id: docker_registry_checker
      run: |
        if [ -n "$DOCKER_REGISTRY_NAME" -a -n "$DOCKER_REGISTRY_USER" -a -n \
          "$DOCKER_REGISTRY_PASSWORD" -a -n "$DOCKER_REGISTRY_PREFIX" ]
        then
          printf "%b" \
                 "Docker Registry data found in GitHub secret storage," \
                 " will try to upload\n"
          echo "::set-output name=hasRegistry::true"
        else
          printf "Docker Registry data not found in GitHub secret storage\n"
          echo "::set-output name=hasRegistry::false"
        fi
      env:
        DOCKER_REGISTRY_NAME: ${{ secrets.DOCKER_REGISTRY_NAME }}
        DOCKER_REGISTRY_USER: ${{ secrets.DOCKER_REGISTRY_USER }}
        DOCKER_REGISTRY_PASSWORD: ${{ secrets.DOCKER_REGISTRY_PASSWORD }}
        DOCKER_REGISTRY_PREFIX: ${{ secrets.DOCKER_REGISTRY_PREFIX }}

    - name: Export timestamp of workflow run in seconds since epoch
      id: timestamp_exporter
      run: |
        TIMESTAMP=$(date +%s)
        echo "::set-output name=timestamp::$TIMESTAMP"
        printf "Timestamp for this workflow run is $TIMESTAMP\n"

  buildMachinekitHALDebianPackages:
    name: >
      Package ${{ matrix.osDistribution }} ${{ matrix.osVersionCodename }},
      ${{ matrix.architecture }}
    runs-on: ubuntu-latest
    needs: prepareState
    strategy:
      matrix: ${{ fromJson(needs.prepareState.outputs.MainMatrix) }}
      fail-fast: false

    steps:
        # Building packages needs deep clone for the ability to create a version
        # number by counting all commits
      - name: Clone Machinekit-HAL repository
        uses: actions/checkout@v2
        with:
          ref: '${{ github.event.ref }}'
          fetch-depth: '0'
          path: 'build/machinekit-hal'

      - name: Prepare specific Python version for Machinekit-HAL build scripts
        if: needs.prepareState.outputs.BuildDockerImages == 'true'
        uses: actions/setup-python@v2
        with:
          python-version: '3.8'

      - name: Install Python SH tool to runner VM environment
        if: needs.prepareState.outputs.BuildDockerImages == 'true'
        run: pip install sh

      - name: >
          Prepare distribution name '${{ matrix.osDistribution}}' for use
          in paths
        run: |
          DISTRIBUTION_LOWER=$(echo "$DISTRIBUTION" | awk '{print tolower($0)}')
          echo "distribution_normalized=$DISTRIBUTION_LOWER" >> $GITHUB_ENV
        env:
          DISTRIBUTION: ${{ matrix.osDistribution}}

      - name: Prepare the Docker image
        run: |
          if [ "${{ needs.prepareState.outputs.BuildDockerImages }}" == "true" ]
          then
            debian/buildcontainerimage.py -r ${IMAGE_NAME_PREFIX} \
                                          ${DISTRIBUTION}         \
                                          ${VERSION}              \
                                          ${ARCHITECTURE}
            exit 0
          fi
          printf "${{ env.GITHUB_TOKEN}}" | docker login docker.pkg.github.com \
            -u $GITHUB_OWNER --password-stdin
          docker pull ${IMAGE_NAME_PREFIX}/${IMAGE_NAME_BASE}:${DOCKER_TAG}
          IMAGE_INFO=$(docker image inspect \
            ${IMAGE_NAME_PREFIX}/${IMAGE_NAME_BASE}:${DOCKER_TAG})
          IMAGE_ID=$(jq -r '.[].Id' <<< "$IMAGE_INFO")
          printf "%b"                                                          \
                 "Git SHA of downloaded Docker image: $IMAGE_ID\n"             \
                 "Git SHA of cached Docker image passed from preparatory job:" \
                 " $ {{ matrix.dockerImage.imageDigest }}"
          if [[ "$IMAGE_ID" != "${{ matrix.dockerImage.imageDigest }}" ]]
          then
          ERROR=$(printf "%b"                                                 \
                         "Git SHA label of downloaded docker image IMAGE_ID") \
                         " does not match the expected"                       \
                         "${{ matrix.dockerImage.imageDigest }}.\n"           \
                         "Please try rerunning this workflow!\n"
            echo "::error::$ERROR"
            exit 1
          fi
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          IMAGE_NAME_PREFIX: 'docker.pkg.github.com/${{ github.repository }}'
          IMAGE_NAME_BASE: '${{ matrix.dockerImage.basename }}'
          GITHUB_OWNER: ${{ github.actor }}
          DISTRIBUTION: ${{ matrix.osDistribution}}
          VERSION: ${{ matrix.osVersionCodename}}
          ARCHITECTURE: ${{ matrix.architecture}}
          DOCKER_TAG: 'latest'
        working-directory: ./build/machinekit-hal

      - name: >
          Bootstrap Machinekit-HAL repository for ${{ matrix.osDistribution }}
          package build for ${{ matrix.osVersionCodename}},
          ${{ matrix.architecture }}
        run: |
          docker run --tty --rm -u "$(id -u):$(id -g)" \
            -v "$(pwd):/home/machinekit/build" \
            -w "/home/machinekit/build/machinekit-hal" \
            ${DOCKER_IMAGE} \
            debian/bootstrap
        env:
          DOCKER_IMAGE: 'docker.pkg.github.com/${{ github.repository }}/${{ matrix.dockerImage.basename }}:latest'
        working-directory: ./build

      - name: >
          Configure Machinekit-HAL repository for ${{ matrix.osDistribution }}
          package build for ${{ matrix.osVersionCodename}},
          ${{ matrix.architecture }}
        run: |
          docker run --tty --rm -u "$(id -u):$(id -g)" \
            -v "$(pwd):/home/machinekit/build" \
            -w "/home/machinekit/build/machinekit-hal" \
            ${DOCKER_IMAGE} \
            debian/configure.py -c
        env:
          DOCKER_IMAGE: 'docker.pkg.github.com/${{ github.repository }}/${{ matrix.dockerImage.basename }}:latest'
        working-directory: ./build

      - name: >
          Build Machinekit-HAL ${{ matrix.osDistribution }} package for
          ${{ matrix.osVersionCodename}}, ${{ matrix.architecture }}
        run: |
          docker run --tty --rm -u "$(id -u):$(id -g)" \
            -v "$(pwd):/home/machinekit/build" \
            -w "/home/machinekit/build/machinekit-hal" \
            ${DOCKER_IMAGE} \
            debian/buildpackages.py
        env:
          DOCKER_IMAGE: 'docker.pkg.github.com/${{ github.repository }}/${{ matrix.dockerImage.basename }}:latest'
        working-directory: ./build

      - name: Sign the package with Machinekit Builder Signer Key
        if: >
          github.event_name == 'push' &&
          needs.prepareState.outputs.HasSigningKey == 'true'
        run: |
          mkdir ${ROOT_DIR}/secrets_mountpoint
          sudo mount -t tmpfs -o size=50m tmpfs ${ROOT_DIR}/secrets_mountpoint
          echo "$SIGNING_KEY" > ${ROOT_DIR}/secrets_mountpoint/key.gpg
          echo "
          #!/bin/bash -e
          gpg --homedir /secrets_mountpoint/.gnupg -v --batch --import \
            '/secrets_mountpoint/key.gpg'
          find /machinekit-hal -maxdepth 1 -name *.deb -print0 | \
            xargs -0 -n1 -t -I '{}' dpkg-sig --gpg-options \
            '--homedir /secrets_mountpoint/.gnupg' --sign builder '{}'
          " > ${ROOT_DIR}/secrets_mountpoint/doSignPackages.sh
          docker run --rm --tty \
            -v "${ROOT_DIR}/secrets_mountpoint:/secrets_mountpoint" \
            -v "$(pwd):/machinekit-hal" -u "$(id -u):$(id -g)" \
            ${DOCKER_IMAGE} \
            /bin/bash /secrets_mountpoint/doSignPackages.sh
          sudo umount ${ROOT_DIR}/secrets_mountpoint
        env:
          ROOT_DIR: ${{ github.workspace }}
          SIGNING_KEY: ${{ secrets.SIGNING_KEY }}
          DOCKER_IMAGE: 'docker.pkg.github.com/${{ github.repository }}/${{ matrix.dockerImage.basename }}:latest'
        working-directory: ./build

      - name: Prepare build artifact for upload
        run: |
          mkdir machinekit-hal-${{ env.distribution_normalized }}
          find ./build -depth -not \( \
          -path "." -or -path "./build" -or -path "./build/machinekit-hal" -or \
          -path "./build/machinekit-hal/*" \) -print0 | \
          xargs -0 -t -I '{}' cp -v '{}' \
            ./machinekit-hal-${{ env.distribution_normalized }}

      - name: >
          Upload built package for ${{ matrix.osDistribution }}
          ${{ matrix.osVersionCodename}}, ${{ matrix.architecture }}
          as an artifact
        uses: actions/upload-artifact@v2
        with:
          name: machinekit-hal-${{ env.distribution_normalized }}-${{ matrix.architecture }}-${{ matrix.osVersionNumber }}-${{ github.sha }}-${{ needs.prepareState.outputs.Timestamp }}
          path: machinekit-hal-${{ env.distribution_normalized }}

      - name: >
          Prepare base Docker image for installation of packages
          of Machinekit-HAL on ${{ matrix.osDistribution }}
          ${{ matrix.osVersionCodename}}
        if: matrix.architecture == 'amd64'
        run: |
          debian/buildcontainerimage.py -r ${IMAGE_NAME_PREFIX} \
                                           ${DISTRIBUTION}      \
                                           ${VERSION}           \
                                           ${ARCHITECTURE}      \
                                        -t ${BUILD_TARGET}      \
                                        -d ${IMAGE_NAME}
        env:
          IMAGE_NAME_PREFIX: 'docker.pkg.github.com/${{ github.repository }}'
          DISTRIBUTION: ${{ matrix.osDistribution}}
          VERSION: ${{ matrix.osVersionCodename}}
          ARCHITECTURE: ${{ matrix.architecture}}
          BUILD_TARGET: 'machinekit-hal_builder_base'
          IMAGE_NAME: 'machinekit-hal-runner'
        working-directory: ./build/machinekit-hal

      - name: >
          Install Machinekit-HAL ${{ matrix.osDistribution }} package for
          ${{ matrix.osVersionCodename}}, ${{ matrix.architecture }} and
          run Runtests
        if: matrix.architecture == 'amd64'
        run: |
          docker run --tty --rm -u "$(id -u):$(id -g)"  \
            -v "$(pwd):/home/machinekit/machinekit-hal" \
            -w "/home/machinekit/machinekit-hal"        \
            --cap-add=sys_nice                          \
            ${DOCKER_IMAGE}                             \
            /bin/bash -c "
            #!/bin/bash -e
            sudo apt-get install -y                 \
              /home/machinekit/machinekit-hal/*.deb
            echo "ANNOUNCE_IPV4=0" | sudo tee -a /etc/machinekit/hal/machinekit.ini
            echo "ANNOUNCE_IPV6=0" | sudo tee -a /etc/machinekit/hal/machinekit.ini
            run_runtests -v
            "
        env:
          DOCKER_IMAGE: 'docker.pkg.github.com/${{ github.repository }}/machinekit-hal-runner:latest'
        working-directory: './machinekit-hal-${{ env.distribution_normalized }}'

  testMachinekitHALBuild:
    name: >
      Test on ${{ matrix.osDistribution }} ${{ matrix.osVersionCodename }},
      ${{ matrix.architecture }}
    runs-on: ubuntu-latest
    needs: prepareState
    strategy:
      matrix: ${{ fromJson(needs.prepareState.outputs.OsVersionsMatrix) }}
      fail-fast: false

    steps:
      - name: Clone Machinekit-HAL repository
        uses: actions/checkout@v2
        with:
          ref: '${{ github.event.ref }}'
          path: 'build/machinekit-hal'

      - name: Check on which architecture the workflow is running on
        id: runtime_architecture
        run: |
          ARCHITECTURE=$(uname --machine)
          RENAMEARCH=""
          case "$ARCHITECTURE" in
            "x86_64")
              RENAMEARCH="amd64"
              ;;
            *)
              printf "Architecture $ARCHITECTURE is unrecognized\n"
              exit 1
              ;;
          esac
          printf "This job is going to use $RENAMEARCH as an achitecture tag\n"
          echo "::set-output name=architecture::$RENAMEARCH"

      - name: Prepare specific Python version for Machinekit-HAL build scripts
        if: needs.prepareState.outputs.BuildDockerImages == 'true'
        uses: actions/setup-python@v2
        with:
          python-version: '3.9'

      - name: Install Python SH tool to runner VM environment
        if: needs.prepareState.outputs.BuildDockerImages == 'true'
        run: pip install sh

      - name: Prepare the Docker image
        run: |
          if [ "${{ needs.prepareState.outputs.BuildDockerImages }}" == "true" ]
          then
            debian/buildcontainerimage.py -r ${IMAGE_NAME_PREFIX} \
                                             ${DISTRIBUTION}      \
                                             ${VERSION}           \
                                             ${ARCHITECTURE}
            exit 0
          fi
          printf "${{ env.GITHUB_TOKEN}}" | docker login docker.pkg.github.com \
            -u $GITHUB_OWNER --password-stdin
          docker pull ${IMAGE_NAME_PREFIX}/${IMAGE_NAME_BASE}:${DOCKER_TAG}
          IMAGE_INFO=$(docker image inspect \
            ${IMAGE_NAME_PREFIX}/${IMAGE_NAME_BASE}:${DOCKER_TAG})
          IMAGE_ID=$(jq -r '.[].Id' <<< "$IMAGE_INFO")
          printf "%b"                                                          \
                 "Git SHA of downloaded Docker image: $IMAGE_ID\n"             \
                 "Git SHA of cached Docker image passed from preparatory job:" \
                 " $ {{ matrix.dockerImage.imageDigest }}"
          if [[ "$IMAGE_ID" != "${{ matrix.dockerImage.imageDigest }}" ]]
          then
          ERROR=$(printf "%b"                                                 \
                         "Git SHA label of downloaded docker image IMAGE_ID") \
                         " does not match the expected"                       \
                         "${{ matrix.dockerImage.imageDigest }}.\n"           \
                         "Please try rerunning this workflow!\n"
            echo "::error::$ERROR"
            exit 1
          fi
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          IMAGE_NAME_PREFIX: 'docker.pkg.github.com/${{ github.repository }}'
          IMAGE_NAME_BASE: '${{ matrix.dockerImage.basename }}'
          GITHUB_OWNER: ${{ github.actor }}
          DISTRIBUTION: ${{ matrix.osDistribution}}
          VERSION: ${{ matrix.osVersionCodename}}
          ARCHITECTURE: ${{ matrix.architecture}}
          DOCKER_TAG: 'latest'
        working-directory: ./build/machinekit-hal

      - name: Execute Runtests
        run: |
          docker run --tty --rm -u "$(id -u):$(id -g)"                               \
            -v "$(pwd):/home/machinekit/build/machinekit-hal"                        \
            -w "/home/machinekit/build/machinekit-hal"                               \
            --cap-add=sys_nice                                                       \
            ${DOCKER_IMAGE}                                                          \
            debian/runtests.py -p . -b ./build -g N -c Debug Release RelWithDebInfo
        env:
          DOCKER_IMAGE: 'docker.pkg.github.com/${{ github.repository }}/${{ matrix.dockerImage.basename }}:latest'
        working-directory: ./build/machinekit-hal

  # This has a chance to cause problems when developing multiple branches
  # simultaneously all or some of which use different builder configuration,
  # one way how to solve it is to use different tags for different branches,
  # but with the current state with Github Packages when one cannot delete
  # public packages (there is discussion on github.community it will be)
  # and fact that Github doesn't say how much space is available for Open
  # Source repository, I am going to let it be limited to :latest for now
  buildContainerImagesForUpload:
    name: >
      Cache ${{ matrix.osDistribution }}
      ${{ matrix.osVersionCodename }}, ${{ matrix.architecture }}
    runs-on: ubuntu-latest
    if: >
      needs.prepareState.outputs.BuildDockerImages == 'true' &&
      github.event_name == 'push'
    needs: [buildMachinekitHALDebianPackages, testMachinekitHALBuild, prepareState]
    strategy:
      matrix: ${{ fromJson(needs.prepareState.outputs.MainMatrix) }}
      fail-fast: true

    steps:
      - name: Clone Machinekit-HAL repository
        uses: actions/checkout@v2
        with:
          ref: '${{ github.event.ref }}'
          path: 'build/machinekit-hal'

      - name: Prepare specific Python version for Machinekit-HAL build scripts
        uses: actions/setup-python@v2
        with:
          python-version: '3.9'

      - name: Install Python SH tool to runner VM environment
        run: pip install sh

      - name: >
          Build the docker image for ${{ matrix.osDistribution }}
          ${{ matrix.osVersionCodename}}, ${{ matrix.architecture }} Builder
        run: |
          debian/buildcontainerimage.py -r ${IMAGE_NAME_PREFIX} \
                                           ${DISTRIBUTION}      \
                                           ${VERSION}           \
                                           ${ARCHITECTURE}
        env:
          IMAGE_NAME_PREFIX: 'docker.pkg.github.com/${{ github.repository }}'
          DISTRIBUTION: '${{ matrix.osDistribution }}'
          VERSION: '${{ matrix.osVersionCodename }}'
          ARCHITECTURE: '${{ matrix.architecture }}'
        working-directory: ./build/machinekit-hal

      - name: Upload the container image to repository's Github Packages registry
        run: |
          set +e
          printf "$GITHUB_TOKEN" | docker login docker.pkg.github.com \
            -u ${GITHUB_OWNER} --password-stdin
          TRY=0
          while [ $TRY -lt ${MAX_TRIES} ]
          do
            (
              docker push ${DOCKER_IMAGE}
            )
            RETVAL=$?
            if [ $RETVAL -eq 0 ]; then
              break
            fi
            printf "%b" \
                   "Docker push exited with %d\nError occured during try %d," \
                   " trying again\n" \
                   "$RETVAL" \
                   "$TRY"
            TRY=$(( $TRY + 1 ))
          done
          exit ${RETVAL}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GITHUB_OWNER: ${{ github.actor }}
          MAX_TRIES: 50
          DOCKER_IMAGE: 'docker.pkg.github.com/${{ github.repository }}/${{ matrix.dockerImage.basename }}:latest'

      - name: Upload the container image to third party registry
        if: needs.prepareState.outputs.HasSpecificDockerRegistry == 'true'
        run: |
          set +e
          printf "$DOCKER_REGISTRY_PASSWORD" | \
            docker login ${DOCKER_REGISTRY_NAME} -u ${DOCKER_REGISTRY_USER} \
            --password-stdin
          TRY=0
          while [ $TRY -lt ${MAX_TRIES} ]
          do
            (
              docker push ${DOCKER_IMAGE}
            )
            RETVAL=$?
            if [ $RETVAL -eq 0 ]; then
              break
            fi
            printf "%b" \
                   "Docker push exited with %d\nError occured during try %d," \
                   " trying again\n" \
                   "$RETVAL" \
                   "$TRY"
            TRY=$(( $TRY + 1 ))
          done
          exit ${RETVAL}
        env:
          DOCKER_IMAGE: 'docker.pkg.github.com/${{ github.repository }}/${{ matrix.dockerImage.basename }}:latest'
          MAX_TRIES: 50
          DOCKER_TAG: '${{ github.sha }}'
          DOCKER_REGISTRY_NAME: ${{ secrets.DOCKER_REGISTRY_NAME }}
          DOCKER_REGISTRY_USER: ${{ secrets.DOCKER_REGISTRY_USER }}
          DOCKER_REGISTRY_PASSWORD: ${{ secrets.DOCKER_REGISTRY_PASSWORD }}

  uploadMachinekitHALDebianPackagesToCloudsmith:
    name: Upload packages to Cloudsmith hosting service
    runs-on: ubuntu-latest
    if: >
      needs.prepareState.outputs.HasCloudsmithToken == 'true' &&
      github.event_name == 'push'
    needs: [buildMachinekitHALDebianPackages, testMachinekitHALBuild, prepareState]

    steps:
      - name: Download all built artifacts from GitHub storage
        uses: actions/download-artifact@v2
        with:
          path: ./artifacts

      - name: >
          Show artifacts downloaded from GitHub storage in directory structure
        run: ls -R
        working-directory: ./artifacts

      - name: Prepare specific Python version for Cloudsmith CLI
        uses: actions/setup-python@v2
        with:
          python-version: '3.8'

      - name: Install Cloudsmith CLI tool to runner VM environment
        run: |
          pip install --upgrade cloudsmith-cli
          cloudsmith --help
          cloudsmith whoami
        env:
          CLOUDSMITH_API_KEY: '${{ secrets.CLOUDSMITH_TOKEN }}'

      - name: Upload the Debian packages to Cloudsmith hosting service
        run: |
          test_array=()
          CLOUDSMITH_REPLY=$(cloudsmith list repos --output-format json)
          FOUND_NAMESPACE=$(echo "$CLOUDSMITH_REPLY" | \
            jq -e -r --arg INPUTREGEX "$REPOSITORY_REGEX" '.data[] |
            select(.slug|test($INPUTREGEX)) | .namespace')
          FOUND_REPOSITORY=$(echo "$CLOUDSMITH_REPLY" | \
            jq -e -r --arg INPUTREGEX "$REPOSITORY_REGEX" '.data[] |
            select(.slug|test($INPUTREGEX)) | .slug')
          if [ "$FOUND_REPOSITORY" == "" -o "$FOUND_REPOSITORY" == "null" \
            -o "$FOUND_NAMESPACE" == "" -o "$FOUND_NAMESPACE" == "null" ]
          then
            printf "No repository matching regular expression %s found\n" \
              "$REPOSITORY_REGEX"
            exit 1
          fi
          printf "Found repository %s/%s in Cloudsmith account\n" \
            "$FOUND_NAMESPACE" \
            "$FOUND_REPOSITORY"
          while IFS=  read -r -d $'\0'; do
            test_array+=("$REPLY")
          done < <(find . -type f -regextype egrep \
            -iregex "${PACKAGES_REGEX}" -print0)
          for package in "${test_array[@]}"
          do
            [[ "$package" =~ $PACKAGES_REGEX ]]
            OSCODENAME=$(echo "$MATRIX_JSON" | \
              jq -r --arg OSVERSIONNUMBER "${BASH_REMATCH[3]}" \
              --arg ARCHITECTURE "${BASH_REMATCH[2]}" \
              '.include[] | select((.osVersionNumber|tostring==$OSVERSIONNUMBER)
              and (.architecture==$ARCHITECTURE)) |
              .osVersionCodename|ascii_downcase')
            cloudsmith push deb \
              ${FOUND_NAMESPACE}/${FOUND_REPOSITORY}/${BASH_REMATCH[1]}/${OSCODENAME} \
              ${package} \
              --republish
          done
        env:
          MATRIX_JSON: '${{ needs.prepareState.outputs.MainMatrix }}'
          PACKAGES_REGEX: '^.*/machinekit-hal-([a-z]{1,})-([a-z0-9]{1,})-([0-9\.]{1,})-${{ github.sha }}-${{ needs.prepareState.outputs.Timestamp }}/.{1,}\.d?deb$'
          REPOSITORY_REGEX: '^${{ github.event.repository.name }}$'
          CLOUDSMITH_API_KEY: '${{ secrets.CLOUDSMITH_TOKEN }}'