playbooks/gerrit-plugin/publish.yaml

- name: Update plugins.json
  hosts: localhost
  vars:
    # This is a JMESpath query we use later, defined here to avoid
    # quoting issues.
    artifact_query: "artifacts[?metadata.type=='java_jar']"
    # The path relative to the container root where the archive will
    # be published.  We include the current build UUID so that we
    # always get a unique path (so that the JSON file which contains
    # the sha1sum is never out of sync with the archive).
    relative_path: "{{ zuul.project.name }}/{{ zuul.branch }}/{{ zuul.uuid }}/{{ zuul.project.short_name }}.jar"
  tasks:
    - name: Make sure this is a plugin repo
      fail:
        msg: This job is designed only to run on plugins.
      when: "not zuul.project.name.startswith('plugins/')"

    # Zuul passes artifact data as zuul.artifacts; query that to find
    # the one we're interested in.
    - name: Find artifact metadata
      set_fact:
        this_artifact: "{{ (zuul | json_query(artifact_query))[0] }}"

    # Make two empty directories for uploading later.
    - name: Prepare JSON output directory
      file:
        state: directory
        path: "{{ zuul.executor.work_root }}/plugins_json_upload"
    - name: Prepare archive output directory
      file:
        state: directory
        path: "{{ (zuul.executor.work_root+'/plugins_archive_upload/'+relative_path) | dirname }}"

    # Download the plugin jar file from the log storage system and
    # place it in our upload directory.  We will upload it from here
    # shortly.
    - name: Fetch plugin jar
      get_url:
        url: "{{ this_artifact.url }}"
        dest: "{{ zuul.executor.work_root }}/plugins_archive_upload/{{ relative_path }}"
        checksum: "sha1:{{ this_artifact.metadata.sha1 }}"

    # Download the existing plugins.json file and store it in memory.
    - name: Fetch plugins.json
      uri:
        url: https://storage.googleapis.com/gerrit_zuul_artifacts/plugins.json
        return_content: true
      register: plugin_info

    # We have a local copy of the plugin repo checked out, check to
    # see if there is a package.json from which we can read the plugin
    # description.
    - name: Check for package.json
      stat:
        path: "{{ zuul.executor.work_root+'/'+zuul.project.src_dir+'/package.json' }}"
      register: package_json_stat
    - name: Load package.json
      when: package_json_stat.stat.exists
      set_fact:
        package_json: "{{ lookup('file', zuul.executor.work_root+'/'+zuul.project.src_dir+'/package.json') | from_json }}"
    - name: Set default package.json data
      when: not package_json_stat.stat.exists
      set_fact:
        package_json: {}
    - name: Set plugin description
      set_fact:
        plugin_description: "{{ package_json.description | default('') }}"

    # We're going to update the section of plugins.json with our
    # metadata; prepare that section here.
    - name: Generate plugin version info
      set_fact:
        this_plugin_version_info:
          sha1: '{{ this_artifact.metadata.sha1 }}'
          url: 'https://storage.googleapis.com/gerrit_zuul_artifacts/{{ relative_path }}'
          build_url: 'https://ci.gerritcodereview.com/t/gerrit/build/{{ zuul.uuid }}'
    - name: Generate plugin info
      set_fact:
        my_plugin_info: "{{ {zuul.project.short_name: {'description': plugin_description, 'branches': {zuul.branch: this_plugin_version_info}}} }}"

    # Splice that section into the existing data (overwriting as
    # necessary).
    - name: Update plugin info
      set_fact:
        plugin_info: '{{ {} | combine(my_plugin_info) }}'

    # Write the final plugins.json to our upload directory.
    - name: Write updated plugin info
      copy:
        content: '{{ plugin_info | to_json }}'
        dest: '{{ zuul.executor.work_root }}/plugins_json_upload/plugins.json'

    # Upload the archive itself first.
    - name: Upload plugin archive
      include_role:
        name: gcs-upload
      vars:
        gcs_upload_container: gerrit_zuul_artifacts
        gcs_upload_project: gerritcodereview-ci
        gcs_upload_root: '{{ zuul.executor.work_root }}/plugins_archive_upload'

    # Finally upload the plugins.json file.
    - name: Upload plugins.json
      include_role:
        name: gcs-upload
      vars:
        gcs_upload_container: gerrit_zuul_artifacts
        gcs_upload_project: gerritcodereview-ci
        gcs_upload_root: '{{ zuul.executor.work_root }}/plugins_json_upload'
        gcs_upload_cache_control: 'public, max-age: 300'