- name: Check for yarn.lock
  when: js_build_tool is not defined
  stat:
    path: "{{ zuul_work_dir }}/yarn.lock"
    get_checksum: false
    get_mime: false
    get_md5: false
  register: yarn_lock_exists

- name: Set js_build_tool fact
  set_fact:
    js_build_tool: '{{ yarn_lock_exists.stat.exists | ternary("yarn", "npm") }}'
    cacheable: true
  when: js_build_tool is not defined

- name: Ensure yarn if needed
  include_role:
    name: ensure-yarn
  when: js_build_tool == 'yarn'

- name: Ensure nodejs if needed
  include_role:
    name: ensure-nodejs
  when: js_build_tool == 'npm'