refactors logging and config

app/util.py

@@ -1,13 +1,10 @@
 import os
 import zipfile
 from datetime import datetime, timedelta
-
-from app.state import data_file_name, log_file_name
+from flask import current_app
 
 from app.config import load_config
 
-config = load_config()
-
 def create_zip(file_paths, zip_name, app):
     temp_dir = os.path.abspath(app.config['TEMP']['TEMP_DIR'])
     zip_path = os.path.join(temp_dir, zip_name)
@@ -18,7 +15,7 @@ def create_zip(file_paths, zip_name, app):
     return zip_path
 
 def delete_old_zips():
-    temp_dir = os.path.abspath(config['TEMP']['TEMP_DIR'])
+    temp_dir = os.path.abspath(current_app.config['TEMP']['TEMP_DIR'])
     now = datetime.now()
     for filename in os.listdir(temp_dir):
         if filename.endswith('.zip'):
@@ -33,7 +30,7 @@ def tail(filename, n):
         yield ''
         return
 
-    page_size = int(config['LOGGING']['TAIL_PAGE_SIZE'])
+    page_size = int(current_app.config['LOGGING']['TAIL_PAGE_SIZE'])
     offsets = []
     count = _n = n if n >= 0 else -n