From 0e16546af9da06866a7c6f2b9c2cb94e0b4ba813 Mon Sep 17 00:00:00 2001
From: Alexandre Aubin <alex.aubin@mailoo.org>
Date: Mon, 8 Apr 2019 18:15:00 +0200
Subject: [PATCH] [fix] Microdecision : do not miserably crash if the lock does
 not exist when attempting to release it

---
 moulinette/core.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/moulinette/core.py b/moulinette/core.py
index 50419b7b..c438a6c7 100644
--- a/moulinette/core.py
+++ b/moulinette/core.py
@@ -497,7 +497,10 @@ class MoulinetteLock(object):
 
         """
         if self._locked:
-            os.unlink(self._lockfile)
+            if os.path.exists(self._lockfile):
+                os.unlink(self._lockfile)
+            else:
+                logger.warning("Uhoh, somehow the lock %s did not exist ..." % self._lockfile)
             logger.debug('lock has been released')
             self._locked = False