---

- block:

    - name: check '{{ pip_command }}' command
      command: "'{{ pip_command }}' --version"
      changed_when: false

    - name: discover '{{ pip_command }}' executable path
      command: "which '{{ pip_command }}'"
      register: discover_pip_executable
      changed_when: false

    - name: register '{{ pip_command }}' executable as '{{ discover_pip_executable.stdout }}'
      set_fact:
        pip_executable: '{{ discover_pip_executable.stdout }}'

  rescue:

    - name: download Pip installer from '{{ pip_url }}'
      get_url:
        url: "{{ pip_url }}"
        dest: "{{ pip_installer }}"

    - name: "Install '{{ pip_executable }}'"
      become: yes
      become_user: root
      command: "'{{ python_executable }}' '{{ pip_installer }}'"

    - name: check Pip is installed for '{{ pip_executable }}'
      command: "'{{ pip_executable }}' --version"
      changed_when: false

    - name: check '{{ pip_command }}' command
      command: "'{{ pip_command }}' --version"
      changed_when: false


- name: "ensure required Python packages are installed and up-to-date"
  become: true
  become_user: root
  pip:
    name: "{{ item }}"
    executable: '{{ pip_executable }}'
    state: latest
  vars:
    ansible_python_interpreter: '{{ python_executable }}'
  when: (item | length ) > 0
  loop:
    - "{{ pip_install_base_packages }}"
    - "{{ pip_install_packages }}"


- name: "remove '{{ pip_executable | dirname }}/pip'"
  become: yes
  become_user: root
  file:
    path: '{{ pip_executable | dirname }}/pip'
    state: absent
  when: pip_command != "pip"