---
- hosts: all
  tasks:
    - name: Install yamllint
      package:
        name: yamllint
        state: latest

    - name: Determine added or modified YAML files
      command:
        cmd: >
          git diff --name-only --diff-filter=AM
          origin/{{ zuul.branch|quote }}...{{ zuul.branch|quote }}
      args:
        chdir: '{{ zuul.project.src_dir }}'
      register: fi_ansible__added_modified_yaml_files
      changed_when: "False"
      failed_when: fi_ansible__added_modified_yaml_files.rc != 0

    - name: Run yamllint on changed YAML files
      command: yamllint {{ item }}
      args:
        chdir: '{{ zuul.project.src_dir }}'
      with_items: "{{ fi_ansible__added_modified_yaml_files.stdout_lines | list }}"