iiab/roles/mediawiki/tasks/install.yml

- name: "Set 'mysql_install: True' and 'mysql_enabled: True'"
  set_fact:
    mysql_install: True
    mysql_enabled: True

- name: MYSQL - run 'mysql' role (attempt to install & enable MySQL / MariaDB)
  include_role:
    name: mysql

- name: FAIL (STOP THE INSTALL) IF 'mysql_installed is undefined'
  fail:
    msg: "MediaWiki install cannot proceed, as MySQL / MariaDB is not installed."
  when: mysql_installed is undefined


- name: Record (initial) disk space used
  shell: df -B1 --output=used / | tail -1
  register: df1


# https://www.mediawiki.org/wiki/Manual:Installation_requirements#PHP
- name: 'Install packages: php{{ php_version }}-intl, php{{ php_version }}-mbstring, php{{ php_version }}-xml'
  package:
    name:
      #- php{{ php_version }}-common     # Auto-installed as an apt dependency.  REGARDLESS: php{{ php_version }}-common superset php{{ php_version }}-cli is auto-installed by php{{ php_version }}-fpm in nginx/tasks/install.yml
      - php{{ php_version }}-intl        # Likewise installed in moodle/tasks/install.yml, nextcloud/tasks/install.yml, wordpress/tasks/install.yml
      #- php{{ php_version }}-json       # See stanza just below
      - php{{ php_version }}-mbstring    # Likewise installed in moodle/tasks/install.yml, nextcloud/tasks/install.yml, pbx/tasks/freepbx_dependencies.yml, wordpress/tasks/install.yml
      - php{{ php_version }}-xml         # 2021-06-27: REQUIRED (AND ENFORCED) despite this being missing from MediaWiki's above requirements doc!  Likewise installed in moodle/tasks/install.yml, nextcloud/tasks/install.yml, pbx/tasks/freepbx_dependencies.yml, wordpress/tasks/install.yml -- AND REGARDLESS dragged in later by Admin Console's use of php-pear for roles/cmdsrv/tasks/main.yml
    state: present

# For PHP >= 8.0: phpX.Y-json is baked into PHP itself.
# For PHP <  8.0: phpX.Y-json auto-installed by phpX.Y-fpm AND phpX.Y-cli in 3-base-server's nginx/tasks/install.yml, as confirmed by: apt rdepends phpX.Y-json
#
#- name: Install php{{ php_version }}-json if PHP < 8.0
#  package:
#    name: php{{ php_version }}-json
#    state: present
#  when: php_version is version('8.0', '<')

- name: Download {{ mediawiki_download_base_url }}/{{ mediawiki_src }} to {{ downloads_dir }}
  get_url:
    url: "{{ mediawiki_download_base_url }}/{{ mediawiki_src }}"
    dest: "{{ downloads_dir }}"    # /opt/iiab/downloads
    timeout: "{{ download_timeout }}"
    #force: yes
    #backup: yes

- name: Unarchive (unpack) it to permanent location {{ mediawiki_abs_path }} ({{ apache_user }}:{{ apache_user }}, u+rw,g+r,o+r)
  unarchive:
    src: "{{ downloads_dir }}/{{ mediawiki_src }}"
    dest: "{{ mediawiki_install_path }}"    # /library
    owner: "{{ apache_user }}"    # www-data on debuntu
    group: "{{ apache_user }}"
    mode: u+rw,g+r,o+r    # '0755' forced executable bits on files
    keep_newer: yes

- name: Symlink {{ doc_root }}/{{ mediawiki_symlink }} -> {{ mediawiki_abs_path }}
  file:
    src: "{{ mediawiki_abs_path }}"    # /library/mediawiki-1.XY.Z
    path: "{{ doc_root }}/{{ mediawiki_symlink }}"    # /library/www/html/w
    state: link

- name: Start MySQL systemd service ({{ mysql_service }}) so we can create db
  systemd:
    name: "{{ mysql_service }}"    # mariadb on debuntu
    state: started

- name: Create MySQL database {{ mediawiki_db_name }}
  mysql_db:
    name: "{{ mediawiki_db_name }}"    # iiab_mediawiki
    #state: present

- name: Create MySQL database user {{ mediawiki_db_user }} with password, and permissions to above db
  mysql_user:
    name: "{{ mediawiki_db_user }}"    # iiab_mediawiki_user
    password: "{{ mediawiki_db_user_password }}"
    priv: "{{ mediawiki_db_name }}.*:ALL,GRANT"
    #state: present

- name: Configure MediaWiki, if {{ mediawiki_abs_path }}/LocalSettings.php doesn't exist
  shell: >
    php '{{ mediawiki_abs_path }}/maintenance/install.php'
    --dbname={{ mediawiki_db_name }}
    --dbserver="localhost"
    --installdbuser={{ mediawiki_db_user }}
    --installdbpass={{ mediawiki_db_user_password }}
    --dbuser={{ mediawiki_db_user }}
    --dbpass={{ mediawiki_db_user_password }}
    --scriptpath=/{{ mediawiki_symlink }}
    --lang=en
    --pass={{ mediawiki_admin_user_password }}
    "{{ mediawiki_site_name }}"
    "{{ mediawiki_admin_user }}"
  args:
    chdir: "{{ mediawiki_abs_path }}"    # /library/mediawiki-1.XY.Z
    creates: "{{ mediawiki_abs_path }}/LocalSettings.php"

- name: Configure $wgArticlePath variable in {{ mediawiki_abs_path }}/LocalSettings.php
  lineinfile:
    path: "{{ mediawiki_abs_path }}/LocalSettings.php"    # /library/mediawiki-1.XY.Z
    line: '$wgArticlePath = "/wiki/$1";'

- name: Configure $wgUsePathInfo variable in {{ mediawiki_abs_path }}/LocalSettings.php
  lineinfile:
    path: "{{ mediawiki_abs_path }}/LocalSettings.php"    # /library/mediawiki-1.XY.Z
    line: '$wgUsePathInfo = true;'

- name: Configure $wgServer variable in {{ mediawiki_abs_path }}/LocalSettings.php
  lineinfile:
    path: "{{ mediawiki_abs_path }}/LocalSettings.php"    # /library/mediawiki-1.XY.Z
    regexp: '^\$wgServer ='
    line: '$wgServer = "//" . $_SERVER["HTTP_HOST"];'


# RECORD MediaWiki AS INSTALLED

- name: Record (final) disk space used
  shell: df -B1 --output=used / | tail -1
  register: df2

- name: Add 'mediawiki_disk_usage = {{ df2.stdout|int - df1.stdout|int }}' to {{ iiab_ini_file }}
  ini_file:
    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
    section: mediawiki
    option: mediawiki_disk_usage
    value: "{{ df2.stdout|int - df1.stdout|int }}"

- name: "Set 'mediawiki_installed: True'"
  set_fact:
    mediawiki_installed: True

- name: "Add 'mediawiki_installed: True' to {{ iiab_state_file }}"
  lineinfile:
    path: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml
    regexp: '^mediawiki_installed'
    line: 'mediawiki_installed: True'