Split errx and parse_isodate out into utils.py

We're going to need this for an upcoming commit that moves all
argparse.Action classes to its own file.

2 files changed, 16 insertions, 14 deletions

diff --git a/quarg/main.py b/quarg/main.py
index 2973a2a..541c4d6 100644
--- a/quarg/main.py
+++ b/quarg/main.py
@@ -5,7 +5,6 @@ import sys
 from abc import ABCMeta, abstractmethod
 from timeit import default_timer as timer
 
-import dateutil.parser
 import dateutil.relativedelta
 from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker
@@ -14,9 +13,7 @@ import quarg.database.filters as filters
 from quarg.database.tables import Backlog, Buffer, Network, QuasselUser, Sender
 from quarg.quassel.formatter import format_from
 from quarg.quassel.types import BufferType, MessageFlag, MessageType
-
-def errx(msg):
-    sys.exit(f'quarg: {msg}')
+from quarg.utils import errx, parse_isodate
 
 # TODO Find out what to do about passing INVALID or GROUP as BufferType
 # TODO Find out what to do about passing various message flags
@@ -51,16 +48,6 @@ class ParseBufferType(ParseEnum):
     def enumclass(self):
         return BufferType
 
-def parse_isodate(date):
-    try:
-        parsed = dateutil.parser.isoparse(date)
-    except ValueError as err:
-        errx(f'isoparse: invalid date format \'{date}\', {err}')
-    except OverflowError as err:
-        errx(f'isoparse: date overflows: \'{date}\'')
-
-    return parsed
-
 # FIXME make sure pylint disables are actually still needed everywhere
 
 class ParseDate(argparse.Action):
diff --git a/quarg/utils.py b/quarg/utils.py
new file mode 100644
index 0000000..7fa270e
--- /dev/null
+++ b/quarg/utils.py
@@ -0,0 +1,15 @@
+import sys
+import dateutil.parser
+
+def errx(msg):
+    sys.exit(f'quarg: {msg}')
+
+def parse_isodate(date):
+    try:
+        parsed = dateutil.parser.isoparse(date)
+    except ValueError as err:
+        errx(f'isoparse: invalid date format \'{date}\', {err}')
+    except OverflowError as err:
+        errx(f'isoparse: date overflows: \'{date}\'')
+
+    return parsed