- name: Get packer checksums
  uri:
    url: "{{ hashicorp_releases_fqdn }}/\
          packer/{{ packer_version }}/packer_{{ packer_version }}_SHA256SUMS"
    return_content: true
  register: packer_version_checksums

- name: Set packer checksum
  set_fact:
    packer_checksum: "{{\
        packer_version_checksums.content |\
        regex_search( '[a-z0-9]+  ' + packer_package) |\
        regex_replace( '(?P<checksum>[a-z0-9]+)  ' + packer_package, '\\g<checksum>')
      }}"

- name: Create temp directory
  tempfile:
    state: directory
  register: packer_install_tempdir

- name: Download packer archive
  get_url:
    url: "{{ hashicorp_releases_fqdn }}/\
      packer/{{ packer_version }}/{{ packer_package }}.zip"
    dest: "{{ packer_install_tempdir.path }}/{{ packer_package }}.zip"
    checksum: "sha256:{{ packer_checksum }}"

- name: Create packer package directory
  file:
    path: "{{ packer_install_tempdir.path }}/{{ packer_package }}"
    state: directory

- name: Unarchive packer
  unarchive:
    src: "{{ packer_install_tempdir.path }}/{{ packer_package }}.zip"
    dest: "{{ packer_install_tempdir.path }}/{{ packer_package }}"
    remote_src: yes

- name: Make sure installation directory exists
  file:
    path: "{{ packer_install_dir }}"
    state: directory

- name: Install packer
  copy:
    src: "{{ packer_install_tempdir.path }}/{{ packer_package }}/packer"
    dest: "{{ packer_install_dir }}/packer"
    mode: '0755'
    owner: "{{ ansible_user }}"
    remote_src: yes

- name: Set packer executable fact
  set_fact:
    packer_executable: "{{ packer_install_dir }}/packer"
    cacheable: true

- name: Output packer version
  command: "{{ packer_executable }} version"