e11sync-gunicorn is a bit easier to use

app/e11sync/settings.py

@@ -1,13 +1,29 @@
 from pathlib import Path
-from os import environ
+from os import environ, path
+
+# Build paths inside the project like this: BASE_DIR / 'subdir'.
+BASE_DIR = Path(__file__).resolve().parent.parent
 
 _DEBUG = bool(environ.get('E11SYNC_DEBUG', False))
 _COMPRESS_OFFLINE = bool(environ.get('E11SYNC_COMPRESS_OFFLINE', False))
 _STATIC_ROOT = environ.get('E11SYNC_STATIC_ROOT', '/tmp/e11sync-static')
 _GEOIP_PATH = environ.get('GEOIP_PATH')
+if db := environ.get('E11SYNC_DATABASE_PATH'):
+    _DATABASE_PATH = db
+else:
+    if statedir := environ.get('STATE_DIRECTORY'):
+        _DATABASE_PATH = path.join(statedir, 'db.sqlite3')
+    else:
+        _DATABASE_PATH = BASE_DIR / 'db.sqlite3'
 
-# Build paths inside the project like this: BASE_DIR / 'subdir'.
-BASE_DIR = Path(__file__).resolve().parent.parent
+# otherwise it gets printed twice
+if not environ.get("E11SYNC_DEBUG_PRINTED"):
+    print("DEBUG={}".format(_DEBUG))
+    print("COMPRESS_OFFLINE={}".format(_COMPRESS_OFFLINE))
+    print("STATIC_ROOT={}".format(_STATIC_ROOT))
+    print("GEOIP_PATH={}".format(_GEOIP_PATH))
+    print("DATABASE_PATH={}".format(_DATABASE_PATH))
+    environ["E11SYNC_DEBUG_PRINTED"] = "1"
 
 ########################################
 ## No more side effects after this place
@@ -67,7 +83,7 @@ WSGI_APPLICATION = 'e11sync.wsgi.application'
 DATABASES = {
     'default': {
         'ENGINE': 'django.db.backends.sqlite3',
-        'NAME': BASE_DIR / 'db.sqlite3',
+        'NAME': _DATABASE_PATH,
     }
 }