feat: add PREPEND_LOCALE_PATHS configuration setting

CHANGELOG.md

@@ -4,6 +4,11 @@
 All notable changes to this project will be documented in this file.
 Add any new changes to the top (right below this line).
 
+ - 2022-02-01
+    - Role: edxapp
+        - Added a new `EDXAPP_PREPEND_LOCALE_PATHS` setting to allow operators to
+          override the default translations.
+
  - 2022-01-06
     - Role: edx_notes_api
        - Replaced `ELASTICSEARCH_URL` with `ELASTICSEARCH_DSL` in `edx_notes_api_service_config`.

playbooks/roles/edxapp/defaults/main.yml

@@ -874,6 +874,9 @@ EDXAPP_COMPREHENSIVE_THEME_DIRS:
 # list of paths to the comprehensive theme locale directories
 EDXAPP_COMPREHENSIVE_THEME_LOCALE_PATHS: []
 
+# list of paths to locale directories to load first
+EDXAPP_PREPEND_LOCALE_PATHS: []
+
 # Name of the default site theme
 EDXAPP_DEFAULT_SITE_THEME: ""
 EDXAPP_ENABLE_COMPREHENSIVE_THEMING: false
@@ -1477,6 +1480,7 @@ generic_env_config:  &edxapp_generic_env
 
   COMPREHENSIVE_THEME_DIRS: "{{ EDXAPP_COMPREHENSIVE_THEME_DIRS }}"
   COMPREHENSIVE_THEME_LOCALE_PATHS: "{{ EDXAPP_COMPREHENSIVE_THEME_LOCALE_PATHS }}"
+  PREPEND_LOCALE_PATHS: "{{ EDXAPP_PREPEND_LOCALE_PATHS }}"
   ENABLE_COMPREHENSIVE_THEMING: "{{ EDXAPP_ENABLE_COMPREHENSIVE_THEMING }}"
   DEFAULT_SITE_THEME: "{{ EDXAPP_DEFAULT_SITE_THEME }}"
   SESSION_SAVE_EVERY_REQUEST: "{{ EDXAPP_SESSION_SAVE_EVERY_REQUEST }}"