[damned-lies] Made the lock dir configurable by a setting

[Claude Paroz <claudep src gnome org>]

commit 49ce3f5659d6ac092cc965a4a2243836ee5679a9
Author: Claude Paroz <claude 2xlibre net>
Date:   Mon Sep 16 11:57:24 2019 +0200

    Made the lock dir configurable by a setting

 damnedlies/settings.py | 2 ++
 stats/models.py        | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/damnedlies/settings.py b/damnedlies/settings.py
index 443c36fa..82ae1528 100644
--- a/damnedlies/settings.py
+++ b/damnedlies/settings.py
@@ -203,6 +203,8 @@ GETTEXT_ITS_DATA = {
 
 GITLAB_TOKEN = 'fill_with_real_token'
 
+LOCK_DIR = '/var/lock'
+
 try:
     from .local_settings import *
 except ImportError:
diff --git a/stats/models.py b/stats/models.py
index 85e0eb14..0497efc2 100644
--- a/stats/models.py
+++ b/stats/models.py
@@ -173,7 +173,7 @@ class ModuleLock:
     def __init__(self, mod):
         assert isinstance(mod, Module)
         self.module = mod
-        self.dirpath = os.path.join("/var/lock", "updating-%s" % self.module.name)
+        self.dirpath = os.path.join(settings.LOCK_DIR, "updating-%s" % self.module.name)
 
     def __enter__(self):
         while True: