From 8f51ca57192a6ecb9649176c727710605ee478e9 Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Sun, 16 Jun 2019 19:39:49 +0300
Subject: Fix: log handline (not by default) and tmp handling (ok to not have)

---
 fable.py | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/fable.py b/fable.py
index 8e14357..bee5ce4 100644
--- a/fable.py
+++ b/fable.py
@@ -50,10 +50,11 @@ class Datadir:
         return self._dirname
 
     def set(self, dirname):
-        self._dirname = os.path.abspath(dirname)
-        if not os.path.exists(self._dirname):
-            os.mkdir(self._dirname)
-        self._ours = False
+        if dirname is not None:
+            self._dirname = os.path.abspath(dirname)
+            if not os.path.exists(self._dirname):
+                os.mkdir(self._dirname)
+            self._ours = False
 
     def cleanup(self):
         if self._ours:
@@ -74,7 +75,7 @@ class Run:
 
     def _parse_options(self):
         p = argparse.ArgumentParser()
-        p.add_argument('--log')
+        p.add_argument('--log', default='/dev/null')
         p.add_argument('--tempdir')
         p.add_argument(
             '--scenario', '-s', action='append', dest='scenarios', default=[])
-- 
cgit v1.2.1