iiab/roles/calibre/tasks/install.yml

# 1. INSTALL CALIBRE 3.39.1+ or 4.12+ (calibre, calibredb, calibre-server etc) ON ALL OS'S

- name: "Install OS's latest packages: calibre, calibre-bin"
  package:
    name:
      - calibre
      - calibre-bin
    state: latest

# 2020-04-29: AT YOUR OWN RISK, this *sometimes* works, e.g. to upgrade from
# Raspbian 10's Calibre 3.39.1 to "4.99.4+dfsg+really4.12.0-1" or higher, from:
# http://raspbian.raspberrypi.org/raspbian/pool/main/c/calibre/
# http://archive.raspbian.org/raspbian/pool/main/c/calibre/
#
#- name: Install Calibre via .debs (if Raspbian)
#  command: scripts/calibre-install-latest-rpi.sh    # WORKED for Calibre 3.33.1 on 2018-10-23.  And Calibre 3.28 on 2018-07-26 (PR #971).  Likewise for Calibre 3.26.x.  FAILED with Calibre 3.24+ ("calibre : Depends: python-pyqt5 (>= 5.10.1+dfsg-2) but 5.10.1+dfsg-1+rpi1 is to be installed") since June 2018.
#  when: is_raspbian

# 2020-04-29: Can work *IF* you do 'apt install python2' and change top line
# of /opt/iiab/downloads/calibre-installer.py from '#!/usr/bin/env python2'
# to '#!/usr/bin/python2' e.g. to upgrade Calibre 4.12 on Ubuntu 20.04 LTS.
#
#- name: Install Calibre via py-installer.yml -> calibre-installer.py (if not Raspbian)
#  include_tasks: py-installer.yml
#  when: not is_raspbian    # True Debian or any Ubuntu?

# SEE calibre_via_python's value vars/default_vars.yml, vars/ubuntu-18.yml &
# vars/raspbian-9.yml: try to AVOID Python installer on Raspbian since its
# .deb's (http://raspbian.raspberrypi.org/raspbian/pool/main/c/calibre/)
# are updated within about 10 days of Calibre's quasi-monthly releases!
#
# BUT IF ABSOLUTELY NEC: (SEE roles/calibre/tasks/debs.yml)
# - run testing branch for RPi: scripts/calibre-install-latest-rpi.sh
# - run testing branch for Ubuntu 16.04: scripts/calibre-install-latest.sh
# - run unstable branch for Debian etc: scripts/calibre-install-unstable.sh


# 2. SYSTEMD SERVICES

- name: 'Install from template: /etc/systemd/system/calibre-serve.service'
  template:
    src: "{{ item.src }}"
    dest: "{{ item.dest }}"
  with_items:
    - { src: 'calibre-serve.service.j2', dest: '/etc/systemd/system/calibre-serve.service' }
    #- { src: 'calibre.conf', dest: '/etc/{{ apache_conf_dir }}' }    # apache2/sites-available (this doesn't work, see #529: let's try to create /etc/nginx/conf.d/calibre-nginx.conf in future!)

- name: Stop service 'calibre-serve' (/usr/bin/calibre-server by Kovid Goyal)
  systemd:
    name: calibre-serve
    state: stopped
    daemon_reload: yes


# 3. CREATE USER DATABASE

- name: Create {{ calibre_dbpath }} (mandatory since Calibre 3.x)
  file:
    path: "{{ calibre_dbpath }}"    # /library/calibre
    state: directory

- name: Copy template userdb to {{ calibre_userdb }}
  copy:
    src: /opt/iiab/iiab/roles/calibre/templates/users.sqlite
    dest: "{{ calibre_userdb }}"    # /library/calibre/users.sqlite


# 4. CREATE CONTENT DATABASE WITH A SAMPLE BOOK (REQUIRED AS OF CALIBRE 3.x)

- name: Does /library/calibre/metadata.db exist?
  stat:
    path: "{{ calibre_dbpath }}/metadata.db"
  register: calibre_db

- name: Create database (required since Calibre 3.x) with a sample book
  include_tasks: create-db.yml
  when: not calibre_db.stat.exists


# 5. RECORD Calibre AS INSTALLED

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

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