- name: Check sibling directory
  stat:
    path: '{{ zuul_work_dir }}/{{ item.context }}/.zuul-siblings'
  register: _dot_zuul_siblings

# This should have been cleaned up; multiple builds may specify
# different siblings to include so we need to start fresh.
- name: Check for clean build
  assert:
    that: not _dot_zuul_siblings.stat.exists

- name: Create sibling source directory
  file:
    path: '{{ zuul_work_dir }}/{{ item.context }}/.zuul-siblings'
    state: directory
    mode: 0755
  when: item.siblings is defined

# NOTE(ianw): could use recursive copy: with remote_src, but it's
# Ansible 2.8 only.  take the simple approach.
- name: Copy sibling source directories
  command:
    cmd: 'cp --parents -r {{ sibling }} /home/zuul/{{ zuul_work_dir }}/{{ item.context }}/.zuul-siblings'
    chdir: '~/src'
  loop: '{{ item.siblings }}'
  loop_control:
    loop_var: sibling
  when: item.siblings is defined

- name: Build a docker image
  command: >-
    docker build {{ item.path | default('.') }} -f {{ item.dockerfile | default(docker_dockerfile) }}
    {% if item.target | default(false) -%}
      --target {{ item.target }}
    {% endif -%}
    {% for build_arg in item.build_args | default([]) -%}
      --build-arg {{ build_arg }}
    {% endfor -%}
    {% if item.siblings | default(false) -%}
      --build-arg "ZUUL_SIBLINGS={{ item.siblings | join(' ') }}"
    {% endif -%}
    {% for tag in item.tags | default(['latest']) -%}
    --tag {{ item.repository }}:change_{{ zuul.change }}_{{ tag }}
    --tag {{ item.repository }}:{{ tag }}
    {% endfor -%}
  args:
    chdir: "{{ zuul_work_dir }}/{{ item.context }}"

- name: Cleanup sibling source directory
  file:
    path: '{{ zuul_work_dir }}/.zuul-siblings'
    state: absent