- name: Get SCM_SHA info
  command: git rev-parse --short HEAD
  failed_when: false
  register: scm_sha_output
  args:
    chdir: "{{ zuul_work_dir }}"
  # ANSIBLE0006: Skip linting since it triggers on the "git" command,
  # but rev-parse is not supported by ansible git module.
  tags:
    - skip_ansible_lint

- name: Set scm_sha fact
  set_fact:
    scm_sha: "{{ scm_sha_output.stdout }}"

- name: Get SCM_TAG info
  command: git describe --abbrev=0 --tags
  failed_when: false
  register: scm_tag_output
  when: zuul.tag is not defined
  args:
    chdir: "{{ zuul_work_dir }}"
  # ANSIBLE0006: Skip linting since it triggers on the "git" command,
  # but describe is not supported by ansible git module.
  tags:
    - skip_ansible_lint

- name: Set scm_sha fact from output
  set_fact:
    scm_tag: "{{ scm_tag_output.stdout }}"
  when: zuul.tag is not defined and scm_tag_output.stdout

- name: Set scm_tag fact from zuul
  set_fact:
    scm_tag: "{{ zuul.tag }}"
  when: zuul.tag is defined

- name: Use git sha if there is no tag
  set_fact:
    scm_tag: "{{ scm_sha }}"
  when: zuul.tag is not defined and not scm_tag_output.stdout

- name: Get commits since tag
  # assumes format is like this  '0.0.4-2-g135721c'
  shell: |
    git describe | awk '{split($0,a,"-"); print a[2]}'
  failed_when: false
  register: commits_since_tag_output
  args:
    chdir: "{{ zuul_work_dir }}"
  # ANSIBLE0006: Skip linting since it triggers on the "git" command,
  # but describe is not supported by ansible git module.
  tags:
    - skip_ansible_lint

- name: Set commits_since_tag fact
  when: commits_since_tag_output.rc == 0
  set_fact:
    commits_since_tag: "{{ commits_since_tag_output.stdout }}"

# Some repos, like storyboard-webclient, do not have any tags. git describe
# throws an error in those repos. To be consistent, do a commit count the
# hard way.
- when: commits_since_tag_output.rc != 0
  block:

    - name: Get commits since the beginning
      command: git rev-list HEAD --count
      register: commits_since_beginning
      args:
        chdir: "{{ zuul_work_dir }}"
      # ANSIBLE0006: Skip linting since it triggers on the "git" command,
      # but rev-list is not supported by ansible git module.
      tags:
        - skip_ansible_lint

    - name: Set commits_since_tag fact
      set_fact:
        commits_since_tag: "{{ commits_since_beginning.stdout }}"

- name: Set project_ver to scm_tag if there are no commits
  when: not commits_since_tag
  set_fact:
    project_ver: "{{ scm_tag }}"

- name: Set project_ver if there are commits since the tag
  when: commits_since_tag
  set_fact:
    project_ver: "{{ scm_tag }}.{{ commits_since_tag }}.{{ scm_sha }}"