external_trigger.yml

name: External Trigger Main

on:
  workflow_dispatch:

permissions:
  contents: read

jobs:
  external-trigger-master:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4.1.1

      - name: External Trigger
        if: github.ref == 'refs/heads/master'
        env:
          SKIP_EXTERNAL_TRIGGER: ${{ vars.SKIP_EXTERNAL_TRIGGER }}
        run: |
          printf "# External trigger for docker-citron\n\n" >> $GITHUB_STEP_SUMMARY
          if grep -q "^citron_master_" <<< "${SKIP_EXTERNAL_TRIGGER}"; then
            echo "> [!NOTE]" >> $GITHUB_STEP_SUMMARY
            echo "> Github organizational variable \`SKIP_EXTERNAL_TRIGGER\` contains \`citron_master_\`; will skip trigger if version matches." >> $GITHUB_STEP_SUMMARY
          elif grep -q "^citron_master" <<< "${SKIP_EXTERNAL_TRIGGER}"; then
            echo "> [!WARNING]" >> $GITHUB_STEP_SUMMARY
            echo "> Github organizational variable \`SKIP_EXTERNAL_TRIGGER\` contains \`citron_master\`; skipping trigger." >> $GITHUB_STEP_SUMMARY
            exit 0
          fi
          echo "> [!NOTE]" >> $GITHUB_STEP_SUMMARY
          echo "> External trigger running off of master branch. To disable this trigger, add \`citron_master\` into the Github organizational variable \`SKIP_EXTERNAL_TRIGGER\`." >> $GITHUB_STEP_SUMMARY
          printf "\n## Retrieving external version\n\n" >> $GITHUB_STEP_SUMMARY
          EXT_RELEASE=$(curl -s 'https://aur.archlinux.org/rpc/v5/info?arg[]=citron' | jq -r '.results[] | select(.Name == "citron") | .Version'
)
          echo "Type is \`custom_version_command\`" >> $GITHUB_STEP_SUMMARY
          if grep -q "^citron_master_${EXT_RELEASE}" <<< "${SKIP_EXTERNAL_TRIGGER}"; then
            echo "> [!WARNING]" >> $GITHUB_STEP_SUMMARY
            echo "> Github organizational variable \`SKIP_EXTERNAL_TRIGGER\` matches current external release; skipping trigger." >> $GITHUB_STEP_SUMMARY
            exit 0
          fi
          if [ -z "${EXT_RELEASE}" ] || [ "${EXT_RELEASE}" == "null" ]; then
            echo "> [!WARNING]" >> $GITHUB_STEP_SUMMARY
            echo "> Can't retrieve external version, exiting" >> $GITHUB_STEP_SUMMARY
            FAILURE_REASON="Can't retrieve external version for citron branch master"
            GHA_TRIGGER_URL="https://github.com/linuxserver/docker-citron/actions/runs/${{ github.run_id }}"
            curl -X POST -H "Content-Type: application/json" --data '{"avatar_url": "https://cdn.discordapp.com/avatars/354986384542662657/df91181b3f1cf0ef1592fbe18e0962d7.png","embeds": [{"color": 16711680,
              "description": "**Trigger Failed** \n**Reason:** '"${FAILURE_REASON}"' \n**Trigger URL:** '"${GHA_TRIGGER_URL}"' \n"}],
              "username": "Github Actions"}' ${{ secrets.DISCORD_WEBHOOK }}
            exit 1
          fi
          EXT_RELEASE_SANITIZED=$(echo ${EXT_RELEASE} | sed 's/[~,%@+;:/]//g')
          echo "Sanitized external version: \`${EXT_RELEASE_SANITIZED}\`" >> $GITHUB_STEP_SUMMARY
          echo "Retrieving last pushed version" >> $GITHUB_STEP_SUMMARY
          image="linuxserver/citron"
          tag="latest"
          token=$(curl -sX GET \
            "https://ghcr.io/token?scope=repository%3Alinuxserver%2Fcitron%3Apull" \
            | jq -r '.token')
          multidigest=$(curl -s \
            --header "Accept: application/vnd.docker.distribution.manifest.v2+json" \
            --header "Accept: application/vnd.oci.image.index.v1+json" \
            --header "Authorization: Bearer ${token}" \
            "https://ghcr.io/v2/${image}/manifests/${tag}")
          if jq -e '.layers // empty' <<< "${multidigest}" >/dev/null 2>&1; then
            # If there's a layer element it's a single-arch manifest so just get that digest
            digest=$(jq -r '.config.digest' <<< "${multidigest}")
          else
            # Otherwise it's multi-arch or has manifest annotations
            if jq -e '.manifests[]?.annotations // empty' <<< "${multidigest}" >/dev/null 2>&1; then
              # Check for manifest annotations and delete if found
              multidigest=$(jq 'del(.manifests[] | select(.annotations))' <<< "${multidigest}")
            fi
            if [[ $(jq '.manifests | length' <<< "${multidigest}") -gt 1 ]]; then
              # If there's still more than one digest, it's multi-arch
              multidigest=$(jq -r ".manifests[] | select(.platform.architecture == \"amd64\").digest?" <<< "${multidigest}")
            else
              # Otherwise it's single arch
              multidigest=$(jq -r ".manifests[].digest?" <<< "${multidigest}")
            fi
            if digest=$(curl -s \
              --header "Accept: application/vnd.docker.distribution.manifest.v2+json" \
              --header "Accept: application/vnd.oci.image.manifest.v1+json" \
              --header "Authorization: Bearer ${token}" \
              "https://ghcr.io/v2/${image}/manifests/${multidigest}"); then
              digest=$(jq -r '.config.digest' <<< "${digest}");
            fi
          fi
          image_info=$(curl -sL \
            --header "Authorization: Bearer ${token}" \
            "https://ghcr.io/v2/${image}/blobs/${digest}")
          if [[ $(echo $image_info | jq -r '.container_config') == "null" ]]; then
            image_info=$(echo $image_info | jq -r '.config')
          else
            image_info=$(echo $image_info | jq -r '.container_config')
          fi
          IMAGE_RELEASE=$(echo ${image_info} | jq -r '.Labels.build_version' | awk '{print $3}')
          IMAGE_VERSION=$(echo ${IMAGE_RELEASE} | awk -F'-ls' '{print $1}')
          if [ -z "${IMAGE_VERSION}" ]; then
            echo "> [!WARNING]" >> $GITHUB_STEP_SUMMARY
            echo "Can't retrieve last pushed version, exiting" >> $GITHUB_STEP_SUMMARY
            FAILURE_REASON="Can't retrieve last pushed version for citron tag latest"
            curl -X POST -H "Content-Type: application/json" --data '{"avatar_url": "https://cdn.discordapp.com/avatars/354986384542662657/df91181b3f1cf0ef1592fbe18e0962d7.png","embeds": [{"color": 16711680,
              "description": "**Trigger Failed** \n**Reason:** '"${FAILURE_REASON}"' \n"}],
              "username": "Github Actions"}' ${{ secrets.DISCORD_WEBHOOK }}
            exit 1
          fi
          echo "Last pushed version: \`${IMAGE_VERSION}\`" >> $GITHUB_STEP_SUMMARY
          if [ "${EXT_RELEASE_SANITIZED}" == "${IMAGE_VERSION}" ]; then
            echo "Sanitized version \`${EXT_RELEASE_SANITIZED}\` already pushed, exiting" >> $GITHUB_STEP_SUMMARY
            exit 0
          elif [ $(curl -s https://ci.linuxserver.io/job/Docker-Pipeline-Builders/job/docker-citron/job/master/lastBuild/api/json | jq -r '.building') == "true" ]; then
            echo "New version \`${EXT_RELEASE}\` found; but there already seems to be an active build on Jenkins; exiting" >> $GITHUB_STEP_SUMMARY
            exit 0
          else
            if [[ "${artifacts_found}" == "false" ]]; then
              echo "> [!WARNING]" >> $GITHUB_STEP_SUMMARY
              echo "> New version detected, but not all artifacts are published yet; skipping trigger" >> $GITHUB_STEP_SUMMARY
              FAILURE_REASON="New version ${EXT_RELEASE} for citron tag latest is detected, however not all artifacts are uploaded to upstream release yet. Will try again later."
              curl -X POST -H "Content-Type: application/json" --data '{"avatar_url": "https://cdn.discordapp.com/avatars/354986384542662657/df91181b3f1cf0ef1592fbe18e0962d7.png","embeds": [{"color": 9802903,
                "description": "**Trigger Failed** \n**Reason:** '"${FAILURE_REASON}"' \n"}],
                "username": "Github Actions"}' ${{ secrets.DISCORD_WEBHOOK }}
            else
              printf "\n## Trigger new build\n\n" >> $GITHUB_STEP_SUMMARY
              echo "New sanitized version \`${EXT_RELEASE_SANITIZED}\` found; old version was \`${IMAGE_VERSION}\`. Triggering new build" >> $GITHUB_STEP_SUMMARY
              if [[ "${artifacts_found}" == "true" ]]; then
                echo "All artifacts seem to be uploaded." >> $GITHUB_STEP_SUMMARY
              fi
              response=$(curl -iX POST \
                https://ci.linuxserver.io/job/Docker-Pipeline-Builders/job/docker-citron/job/master/buildWithParameters?PACKAGE_CHECK=false \
                --user ${{ secrets.JENKINS_USER }}:${{ secrets.JENKINS_TOKEN }} | grep -i location | sed "s|^[L|l]ocation: \(.*\)|\1|")
              echo "Jenkins [job queue url](${response%$'\r'})" >> $GITHUB_STEP_SUMMARY
              echo "Sleeping 10 seconds until job starts" >> $GITHUB_STEP_SUMMARY
              sleep 10
              buildurl=$(curl -s "${response%$'\r'}api/json" | jq -r '.executable.url')
              buildurl="${buildurl%$'\r'}"
              echo "Jenkins job [build url](${buildurl})" >> $GITHUB_STEP_SUMMARY
              echo "Attempting to change the Jenkins job description" >> $GITHUB_STEP_SUMMARY
              curl -iX POST \
                "${buildurl}submitDescription" \
                --user ${{ secrets.JENKINS_USER }}:${{ secrets.JENKINS_TOKEN }} \
                --data-urlencode "description=GHA external trigger https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}" \
                --data-urlencode "Submit=Submit"
              echo "**** Notifying Discord ****"
              TRIGGER_REASON="A version change was detected for citron tag latest. Old version:${IMAGE_VERSION} New version:${EXT_RELEASE_SANITIZED}"
              curl -X POST -H "Content-Type: application/json" --data '{"avatar_url": "https://cdn.discordapp.com/avatars/354986384542662657/df91181b3f1cf0ef1592fbe18e0962d7.png","embeds": [{"color": 9802903,
                "description": "**Build Triggered** \n**Reason:** '"${TRIGGER_REASON}"' \n**Build URL:** '"${buildurl}display/redirect"' \n"}],
                "username": "Github Actions"}' ${{ secrets.DISCORD_WEBHOOK }}
            fi
          fi