feat: add support for uploading custom themes

This commit now allows instance admins to:

- upload custom themes from their Ansible controller
to the themes directory of their Pleoma instance.
- set the default theme for their Pleroma instance.

This commit also contains the following changes:

- explicitly set the background image if not set by the user.
- explicitly set the default theme if not set by the user.

.gitignore

@@ -1,2 +1,4 @@
 inventories/*
 !inventories/.gitkeep
+site.yml
+vapid-private-key.pem

roles/init/defaults/main.yml

@@ -16,6 +16,9 @@ pleroma_defaults:
     federating: "true"
     frontend:
       background: ""
+      themes:
+        custom: []
+        default: pleroma-dark
     db:
       name: pleroma_db
       user: pleroma

roles/pleroma-backend/tasks/main.yml

@@ -34,6 +34,8 @@
   - "{{ pleroma_uploads_dir }}"
   - "{{ pleroma_static_dir }}"
   - "{{ pleroma_static_dir }}/images"
+  - "{{ pleroma_static_dir }}/static"
+  - "{{ pleroma_static_dir }}/static/themes"
 
 - name: Ensuring that the release build of pleroma is downloaded.
   get_url:
@@ -84,6 +86,23 @@
     mode: '0400'
   when: pleroma.config.frontend.background|length
 
+- name: Ensuring that the custom themes are uploaded.
+  copy:
+    src: "{{ item.path }}"
+    dest: "{{ pleroma_static_dir }}/static/themes/{{ item.name }}.json"
+    owner: "{{ pleroma_user.name }}"
+    group: "{{ pleroma_user.group }}"
+    mode: '0400'
+  loop: "{{ pleroma.config.frontend.themes.custom }}"
+
+- name: Ensuring the styles.json file is set in the static/static directory.
+  template:
+    src: var_lib_pleroma_static_static_styles.json.j2
+    dest: "{{ pleroma_static_dir }}/static/styles.json"
+    owner: "{{ pleroma_user.name }}"
+    group: "{{ pleroma_user.group }}"
+    mode: '0400'
+
 - name: Setting up the Pleroma service.
   copy:
     src: "{{ pleroma_user.home }}/installation/init.d/pleroma"

roles/pleroma-backend/templates/etc_pleroma_config.exs.j2

@@ -73,9 +73,12 @@ config :web_push_encryption, :vapid_details,
   private_key: "{{ pleroma.config.webPushEncryption.privateKey }}",
   public_key: "{{ pleroma.config.webPushEncryption.publicKey }}"
 
-{% if pleroma.config.frontend.background|length %}
 config :pleroma, :frontend_configurations,
   pleroma_fe: %{
-    background: "/images/pleroma-background.png"
+  {% if pleroma.config.frontend.background|length %}
+    background: "/images/pleroma-background.png",
+  {% else %}
+    background: "/images/city.jpg",
+  {% endif %}
+    theme: "{{ pleroma.config.frontend.themes.default }}"
   }
-{% endif %}

roles/pleroma-backend/templates/var_lib_pleroma_static_static_styles.json.j2

@@ -0,0 +1,21 @@
+{
+  "pleroma-dark": [ "Pleroma Dark", "#121a24", "#182230", "#b9b9ba", "#d8a070", "#d31014", "#0fa00f", "#0095ff", "#ffa500" ],
+  "pleroma-light": [ "Pleroma Light", "#f2f4f6", "#dbe0e8", "#304055", "#f86f0f", "#d31014", "#0fa00f", "#0095ff", "#ffa500" ],
+  "pleroma-amoled": [ "Pleroma Dark AMOLED", "#000000", "#111111", "#b0b0b1", "#d8a070", "#aa0000", "#0fa00f", "#0095ff", "#d59500"],
+  "classic-dark": [ "Classic Dark", "#161c20", "#282e32", "#b9b9b9", "#baaa9c", "#d31014", "#0fa00f", "#0095ff", "#ffa500" ],
+  "bird": [ "Bird", "#f8fafd", "#e6ecf0", "#14171a", "#0084b8", "#e0245e", "#17bf63", "#1b95e0", "#fab81e"],
+  "ir-black": [ "Ir Black", "#000000", "#242422", "#b5b3aa", "#ff6c60", "#FF6C60", "#A8FF60", "#96CBFE", "#FFFFB6" ],
+  "monokai": [ "Monokai", "#272822", "#383830", "#f8f8f2", "#f92672", "#F92672", "#a6e22e", "#66d9ef", "#f4bf75" ],
+
+  "redmond-xx": "/static/themes/redmond-xx.json",
+  "redmond-xx-se": "/static/themes/redmond-xx-se.json",
+  "redmond-xxi": "/static/themes/redmond-xxi.json",
+  "breezy-dark": "/static/themes/breezy-dark.json",
+  "breezy-light": "/static/themes/breezy-light.json",
+  "mammal": "/static/themes/mammal.json"
+
+{% for i in pleroma.config.frontend.themes.custom %}
+  , "{{ i.name }}": "/static/themes/{{ i.name }}.json"
+{% endfor %}
+
+}