---
- name: Check base state for {{ doc_label }}
  stat:
    path: "{{ generate_doc_patch_base }}/{{ generate_doc_patch_base_location }}"
  register: base_stat

- name: Check new state for {{ doc_label }}
  stat:
    path: "{{ generate_doc_patch_base }}/{{ generate_doc_patch_new_location }}"
  register: new_stat

- name: Generate {{ doc_label }} patch file
  shell: "diff -ruN {{ generate_doc_patch_base_location }} {{ generate_doc_patch_new_location }} > {{ generate_doc_patch_patch_location }}"
  args:
    chdir: "{{ generate_doc_patch_base }}"
  register: diff_cmd
  failed_when: "diff_cmd.rc >= 2"
  changed_when: "diff_cmd.rc == 1"
  when:
    - "base_stat.stat.exists"
    - "new_stat.stat.exists"