Continue if the lockfile no longer existsbenbrown/lockfiles

1 files changed, 8 insertions, 4 deletions

diff --git a/ybd/app.py b/ybd/app.py
index 36fbebc..1040ab3 100644
--- a/ybd/app.py
+++ b/ybd/app.py
@@ -41,10 +41,14 @@ class RetryException(Exception):
         if config.get('last-retry-time'):
             wait = datetime.datetime.now() - config.get('last-retry-time')
             if wait.seconds < 1 and os.path.exists(lockfile(dn)):
-                with open(lockfile(dn), 'r') as L:
-                    call(['flock', '--shared', '--timeout',
-                          config.get('timeout', '60'), str(L.fileno())])
-                log(dn, 'Finished wait loop', verbose=True)
+                try:
+                    with open(lockfile(dn), 'r') as L:
+                        call(['flock', '--shared', '--timeout',
+                              config.get('timeout', '60'), str(L.fileno())])
+                        log(dn, 'Finished wait loop', verbose=True)
+                except IOError:
+                    # The process that had the lock is finished with it.
+                    pass
         config['last-retry-time'] = datetime.datetime.now()
         config['last-retry-dn'] = dn
         for dirname in config['sandboxes']: