_inc_node_version.yml

---
# Determine preferred Node.js version

# Galaxy 18.09 and older prefer 9.11.1
# Galaxy 19.01 prefers 10.13.0
# Galaxy 19.05 and newer provide client/.node_version

- name: Determine preferred Node.js version
  block:

    - name: Collect Galaxy Node.js version file
      slurp:
        src: "{{ galaxy_server_dir }}/client/.node_version"
      register: __galaxy_node_version_file

    - name: Set Galaxy Node.js version fact
      set_fact:
        galaxy_node_version: "{{ __galaxy_node_version_file['content'] | b64decode | trim }}"

    # if the client build is being executed independently, nodeenv may not be already installed.
    # If so, setup a virtualenv with nodeenv installed.
    - name: Check whether nodeenv is available
      stat:
        path: "{{ galaxy_venv_dir }}/bin/nodeenv"
      register: nodeenv_availability

    - name: Setup nodeenv if required
      block:
        - name: Include virtualenv setup tasks
          import_tasks: virtualenv.yml

        - name: Install nodeenv if it doesn't exist
          pip:
            name: nodeenv
            virtualenv: "{{ galaxy_venv_dir }}"
            extra_args: "{{ pip_extra_args | default('') }}"
            virtualenv_command: "{{ galaxy_virtualenv_command | default(pip_virtualenv_command | default(omit)) }}"
            virtualenv_python: "{{ galaxy_virtualenv_python | default(omit) }}"
          environment:
            VIRTUAL_ENV: "{{ galaxy_venv_dir }}"
      when: not nodeenv_availability.stat.exists

  rescue:

    - name: Ensure Galaxy version is set
      include_tasks: _inc_galaxy_version.yml
      when: __galaxy_major_version is undefined

    - name: Sanity check whether .node_version should be present
      assert:
        that:
          - __galaxy_major_version is version('19.09', '<')
        fail_msg: "Galaxy version {{ __galaxy_major_version }} >= 19.09 but client/.node_version file missing!"
        success_msg: "Galaxy version {{ __galaxy_major_version }} < 19.09, will use hardcoded Node.js version default"

    - name: Set Galaxy Node.js version fact
      set_fact:
        galaxy_node_version: "{{ '9.11.1' if (__galaxy_major_version is version('19.01', '<')) else '10.13.0' }}"

- name: Report preferred Node.js version
  debug:
    var: galaxy_node_version