Fix and harden linter checks.

Harden the requirements of mypy, and also check against flake8
docstrings. And fix all errors and warnings resulting from that.

1 files changed, 25 insertions, 0 deletions

diff --git a/mu4web/xapian.py b/mu4web/xapian.py
index d23b2d1..94e597d 100644
--- a/mu4web/xapian.py
+++ b/mu4web/xapian.py
@@ -1,8 +1,24 @@
+"""
+Extra xapian procedures.
+
+The python-xapian library exists, but doesn't seem to export metadata.
+"""
+
 import subprocess
 from typing import Optional
 
 
 def metadata_list(db: str, prefix: Optional[str] = None) -> list[str]:
+    """
+    Enumerate all metadata entries in the given database.
+
+    :param db:
+        File system path to an Xapian "database". This is the
+        directory containing iamglass, flintlock, and .glass files.
+
+    :param prefix:
+        Limit list to entries starting with this string.
+    """
     cmdline = ['xapian-metadata', 'list', db]
     if prefix:
         cmdline.append(prefix)
@@ -11,6 +27,15 @@ def metadata_list(db: str, prefix: Optional[str] = None) -> list[str]:
 
 
 def metadata_get(db: str, key: str) -> str:
+    """
+    Get a xapian metadata value.
+
+    :param db:
+        Same as for metadata_list
+
+    :param key:
+        Exact name of key to look up.
+    """
     cmd = subprocess.run(['xapian-metadata', 'get', db, key],
                          capture_output=True, text=True)
     return cmd.stdout.strip()