回答：将目录A中不存在的文件列表从目录A复制到目录B

Question

工作代码：

---
- name: figure out what we are moving
  find:
    paths={{ A }}
    recurse=no
    age={{ 1h }}
    file_type=directory
    excludes={{excludelist}}
    register: tomove_list

 - name: check if this already exists at destination
   with_items: "{{ tomove_list.files }}"
   stat: path={{ C }}{{ item.path | basename }}
   register: check_existing_dirs

 - name: warn about existing dirs
   with_items: "{{ check_existing_dirs.results }}"
   when: "{{ item.stat.exists }}"
   debug: msg="{{ item.stat.path }} conflicts with an existing run! {{ 
          tomove_list.files }}"
   register: duplicates_with_existing



 - name: Move the run dirs to temporary target
   synchronize:
     mode: pull
     src: "{{ item.path }}"
     dest: "{{ B }}"
     recursive: yes
   with_items: "{{ tomove_list.files }}"

当前此代码复制了所有内容，但想添加一个条件以排除现有目录列表，我们只是在第3步中发出警告。