Temporary backup from J621 porting

nonpacks/common/context_processors.py

@@ -0,0 +1,17 @@
+import time
+from .os_utils import get_os_info
+from django.conf import settings
+
+def app_version(request):
+    os_icon, os_name = get_os_info()
+    page_gen_time = ''
+    if hasattr(request, '_start_time') and request._start_time:
+        elapsed = time.time() - request._start_time
+        page_gen_time = f"{elapsed * 1000:.0f}ms"
+    return {
+        'APP_ENV': 'dev' if settings.DEBUG else 'prod',
+        'GIT_COMMIT_HASH': getattr(settings, 'GIT_COMMIT_HASH', 'unknown'),
+        'OS_ICON': os_icon,
+        'OS_NAME': os_name,
+        'PAGE_GEN_TIME': page_gen_time,
+    }