Merge pull request #542 from grembo/master

Allow configuring transformations to be applied to the filename before

src/paperless/settings.py

@@ -10,7 +10,9 @@ For the full list of settings and their values, see
 https://docs.djangoproject.com/en/1.10/ref/settings/
 """
 
+import json
 import os
+import re
 
 from dotenv import load_dotenv
 
@@ -322,6 +324,11 @@ FY_END = os.getenv("PAPERLESS_FINANCIAL_YEAR_END")
 DATE_ORDER = os.getenv("PAPERLESS_DATE_ORDER", "DMY")
 FILENAME_DATE_ORDER = os.getenv("PAPERLESS_FILENAME_DATE_ORDER")
 
+# Transformations applied before filename parsing
+FILENAME_PARSE_TRANSFORMS = []
+for t in json.loads(os.getenv("PAPERLESS_FILENAME_PARSE_TRANSFORMS", "[]")):
+    FILENAME_PARSE_TRANSFORMS.append((re.compile(t["pattern"]), t["repl"]))
+
 # Specify for how many years a correspondent is considered recent. Recent
 # correspondents will be shown in a separate "Recent correspondents" filter as
 # well. Set to 0 to disable this filter.