Begin reimplementing compose

app/settings.py

@@ -13,6 +13,8 @@ https://docs.djangoproject.com/en/4.0/ref/settings/
 import os
 from pathlib import Path
 
+TRUE_VALUES = {"1", "true", "yes", "on"}
+
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent
 
@@ -36,8 +38,6 @@ INSTALLED_APPS = [
     "django.contrib.sessions",
     "django.contrib.messages",
     "django.contrib.staticfiles",
-    "debug_toolbar",
-    "template_profiler_panel",
     "django_htmx",
     "crispy_forms",
     "crispy_bulma",
@@ -57,6 +57,16 @@ INSTALLED_APPS = [
     "cachalot",
 ]
 
+DEBUG_TOOLBAR_ENABLED = os.getenv("DEBUG_TOOLBAR_ENABLED", "false").lower() in TRUE_VALUES
+
+if DEBUG_TOOLBAR_ENABLED:
+    INSTALLED_APPS.extend(
+        [
+            "debug_toolbar",
+            "template_profiler_panel",
+        ]
+    )
+
 # Performance optimisations
 CACHES = {
     "default": {
@@ -81,7 +91,6 @@ CRISPY_ALLOWED_TEMPLATE_PACKS = ("bulma",)
 DJANGO_TABLES2_TEMPLATE = "django-tables2/bulma.html"
 
 MIDDLEWARE = [
-    "debug_toolbar.middleware.DebugToolbarMiddleware",
     "django.middleware.security.SecurityMiddleware",
     "django.contrib.sessions.middleware.SessionMiddleware",
     # 'django.middleware.cache.UpdateCacheMiddleware',
@@ -95,6 +104,9 @@ MIDDLEWARE = [
     "django_htmx.middleware.HtmxMiddleware",
 ]
 
+if DEBUG_TOOLBAR_ENABLED:
+    MIDDLEWARE.insert(0, "debug_toolbar.middleware.DebugToolbarMiddleware")
+
 ROOT_URLCONF = "app.urls"
 ASGI_APPLICATION = "app.asgi.application"
 COMPOSE_WS_ENABLED = os.environ.get("COMPOSE_WS_ENABLED", "false").lower() in {
@@ -104,20 +116,24 @@ COMPOSE_WS_ENABLED = os.environ.get("COMPOSE_WS_ENABLED", "false").lower() in {
     "on",
 }
 
+TEMPLATE_CONTEXT_PROCESSORS = [
+    "django.template.context_processors.request",
+    "django.contrib.auth.context_processors.auth",
+    "django.contrib.messages.context_processors.messages",
+    "core.util.django_settings_export.settings_export",
+    "core.context_processors.settings_hierarchy_nav",
+]
+
+if DEBUG_TOOLBAR_ENABLED:
+    TEMPLATE_CONTEXT_PROCESSORS.insert(0, "django.template.context_processors.debug")
+
 TEMPLATES = [
     {
         "BACKEND": "django.template.backends.django.DjangoTemplates",
         "DIRS": [os.path.join(BASE_DIR, "core/templates")],
         "APP_DIRS": True,
         "OPTIONS": {
-            "context_processors": [
-                "django.template.context_processors.debug",
-                "django.template.context_processors.request",
-                "django.contrib.auth.context_processors.auth",
-                "django.contrib.messages.context_processors.messages",
-                "core.util.django_settings_export.settings_export",
-                "core.context_processors.settings_hierarchy_nav",
-            ],
+            "context_processors": TEMPLATE_CONTEXT_PROCESSORS,
         },
     },
 ]
@@ -230,7 +246,7 @@ if PROFILER:  # noqa - trust me its there
 
 
 def show_toolbar(request):
-    return DEBUG  # noqa: from local imports
+    return DEBUG and DEBUG_TOOLBAR_ENABLED  # noqa: from local imports
 
 
 DEBUG_TOOLBAR_CONFIG = {