- name: Check for yarn.lock file
  stat:
    path: "{{ zuul_work_dir }}/yarn.lock"
    get_checksum: false
    get_mime: false
    get_md5: false
  register: yarn_lock

- name: Install yarn dependencies
  command: yarn install
  environment:
    DISPLAY: ':99'
  args:
    chdir: "{{ zuul_work_dir }}"
  when: yarn_lock.stat.exists

- name: Install npm dependencies
  command: npm install --verbose
  environment:
    DISPLAY: ':99'
  args:
    chdir: "{{ zuul_work_dir }}"
  when: not yarn_lock.stat.exists