[damned-lies] Refs #146 - Remove the update lock after more than one day

[Claude Paroz <claudep src gnome org>]

commit f72887545f3ae9d79ee9003092e982bb5add7720
Author: Claude Paroz <claude 2xlibre net>
Date:   Sun Apr 21 20:28:10 2019 +0200

    Refs #146 - Remove the update lock after more than one day

 stats/models.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/stats/models.py b/stats/models.py
index 93c022e1..193188de 100644
--- a/stats/models.py
+++ b/stats/models.py
@@ -181,8 +181,12 @@ class ModuleLock:
                 os.mkdir(self.dirpath)
                 break
             except FileExistsError:
-                # Something is happening on the module, let's wait
-                sleep(10)
+                if (datetime.now() - datetime.fromtimestamp(os.path.getctime(self.dirpath))).days > 1:
+                    # After more than one day, something was blocked, force release the lock.
+                    os.rmdir(self.dirpath)
+                else:
+                    # Something is happening on the module, let's wait.
+                    sleep(10)
 
     def __exit__(self, *exc_info):
         os.rmdir(self.dirpath)