Add entry to Gnome dconf array, eg. for enabling or disabling a gnome shell extension

_gnome-shell_extension.yml

# Usage:
  # ansible.builtin.include_tasks: _gnome-shell_extension.yml
  # loop:
  #   - { name: "Display Name", 
  #       flag: flag_from_host_var_file,
  #       src: source url to download from,
  #       uuid: uuid to enable or disable,
  #       state: "present" to enable, "absent" to disable }

- name: "gnome | extension | {{ item.name }} | Enabling | create extension directory"
  become_user: "{{ user_name }}"
  ansible.builtin.file:
    dest: "~/.local/share/gnome-shell/extensions/{{ item.uuid }}"
    state: directory
  when:
    # should it be enabled? (ie. value = present)
    - lookup('vars', item.flag, default="absent") == "present"

- name: "gnome | extension | {{ item.name }} | Enabling | unarchive package"
  become_user: "{{ user_name }}"
  ansible.builtin.unarchive:
    src: "{{ item.src }}"
    dest: "~/.local/share/gnome-shell/extensions/{{ item.uuid }}"
    remote_src: yes
  when:
    # should it be enabled? (ie. value = present)
    - lookup('vars', item.flag, default="absent") == "present"

- name: "gnome | extension | {{ item.name }} | Get list of enabled extensions"
  tags: gnome,extension,{{ item.flag }}
  become_user: "{{ user_name }}"
  community.general.dconf:
    key: /org/gnome/shell/enabled-extensions
    state: read
  register: enabled_extensions
  changed_when: no

- name: "gnome | extension | {{ item.name }} | Get list of disabled extensions"
  tags: gnome,extension,{{ item.flag }}
  become_user: "{{ user_name }}"
  community.general.dconf:
    key: /org/gnome/shell/disabled-extensions
    state: read
  register: disabled_extensions
  changed_when: no

- name: "gnome | extension | {{ item.name }} | Enabling | Remove from list of disabled extensions"
  tags: "gnome,extension,{{ item.flag }}"
  become_user: "{{ user_name }}"
  community.general.dconf:
    key: /org/gnome/shell/disabled-extensions
    # var.value may contain:
    # - @as []
    # or:
    # - ['abc', 'def']
    # Identical to "add to ...". Difference: use "difference()" filter to remove element
    value: "{{ ('[' + ((disabled_extensions.value | regex_replace('(?:]|(?:@as )?[,[])', '') | split(' ') | difference([item.uuid])) | sort | unique | join(',')) + ']') | replace('[,', '[') | replace('[]', '@as []') | string }}"
    state: present
  when:
    # should it be enabled? (ie. value = present)
    - lookup('vars', item.flag, default="absent") == "present"
    # only try to remove from disabled extensions, if uuid is in the list 
    # -> don't do anything, if there's nothing to be done.
    - item.uuid in disabled_extensions.value

- name: "gnome | extension | {{ item.name }} | Enabling | Add to list of enabled extensions"
  tags: gnome,extension,{{ item.flag }}
  become_user: "{{ user_name }}"
  community.general.dconf:
    key: /org/gnome/shell/enabled-extensions
    # var.value may contain:
    # - @as []
    # or:
    # - ['abc', 'def']
    # Add "'foobar'" as element to this list.
    # - First remove "[", "]", "," and "@as "
    # - Then convert string to array, splitting on " " (space)
    # - Add "'foobar'" to the list
    # - Sort the list
    # - Make it unique
    # - Convert list to string, with "," as seperator
    # - Add '[' and ']' as prefix/suffix
    # - Convert result to string, so that there's no
    #   implicit conversion from list to string
    value: "{{ ('[' + ((enabled_extensions.value | regex_replace('(?:]|(?:@as )?[,[])', '') | split(' ') + [uuid]) | sort | unique | join(',')) + ']') | replace('[,', '[') | string }}"
    state: present
  when:
    # should it be enabled? (ie. value = present)
    - lookup('vars', item.flag, default="absent") == "present"
    # only try to add it to enabled extensions, if uuid is already in the list 
    # -> don't do anything, if there's nothing to be done.
    - item.uuid in disabled_extensions.value

- name: "gnome | extension | {{ item.name }} | Disabling | Remove from list of enabled extensions"
  tags: gnome,extension,{{ item.flag }}
  become_user: "{{ user_name }}"
  community.general.dconf:
    key: /org/gnome/shell/enabled-extensions
    # Explanation: See above.
    value: "{{ ('[' + ((enabled_extensions.value | regex_replace('(?:]|(?:@as )?[,[])', '') | split(' ') | difference([item.uuid])) | sort | unique | join(',')) + ']') | replace('[,', '[') | replace('[]', '@as []') | string }}"
    state: present
  when:
    # should it be disabled? (ie. value = absent)
    - lookup('vars', item.flag, default="absent") == "absent"
    # only try to remove from disabled extensions, if uuid is in the list 
    # -> don't do anything, if there's nothing to be done.
    - item.uuid in enabled_extensions.value

- name: "gnome | extension | {{ item.name }} | Disabling | Add to list of disabled extensions"
  tags: gnome,extension,{{ item.flag }}
  become_user: "{{ user_name }}"
  community.general.dconf:
    key: /org/gnome/shell/disabled-extensions
    # Explanation: See above.
    value: "{{ ('[' + ((disabled_extensions.value | regex_replace('(?:]|(?:@as )?[,[])', '') | split(' ') + [item.uuid]) | sort | unique | join(',')) + ']') | replace('[,', '[') | string }}"
    state: present
  when:
    # should it be disabled? (ie. value = absent)
    - lookup('vars', item.flag, default="absent") == "absent"
    # only try to add it to enabled extensions, if uuid is already in the list 
    # -> don't do anything, if there's nothing to be done.
    - item.uuid in enabled_extensions.value

- name: "gnome | extension | {{ item.name }} | Disabling | delete package files"
  tags: gnome,extension,{{ item.flag }}
  become_user: "{{ user_name }}"
  ansible.builtin.file:
    path: "~/.local/share/gnome-shell/extensions/{{ item.uuid }}"
    state: absent
  when:
    # should it be enabled? (ie. value = present)
    - lookup('vars', item.flag, default="absent") == "absent"

extension-custom-hot-corners-extended.yml

# https://extensions.gnome.org/extension/4167/custom-hot-corners-extended/
# uuid: custom-hot-corners-extended@G-dH.github.com
# src: https://extensions.gnome.org/extension-data/custom-hot-corners-extendedG-dH.github.com.v11.shell-extension.zip

  # ansible.builtin.include_tasks: _gnome-shell_extension.yml
  # loop:
  #   - { name: "Display Name", 
  #       flag: flag_from_host_var_file,
  #       src: source url to download from,
  #       uuid: uuid to enable or disable,
  #       state: "present" to enable, "absent" to disable }

- name: gnome | extension | custom-hot-corners-extended
  tags: gnome,extension,custom_hot_corners_extended
  ansible.builtin.include_tasks: _gnome-shell_extension.yml
  loop:
    - { name: "custom-hot-corners-extended", 
        flag: custom_hot_corners_extended,
        src: "https://extensions.gnome.org/extension-data/custom-hot-corners-extendedG-dH.github.com.v11.shell-extension.zip",
        uuid: "custom-hot-corners-extended@G-dH.github.com" }
  when: custom_hot_corners_extended is defined and custom_hot_corners_extended