From 070e6e78a8c3e0ab5dad8267b06cbf4733b8a00b Mon Sep 17 00:00:00 2001
From: clime <clime@redhat.com>
Date: Sep 21 2017 09:23:54 +0000
Subject: [rpmbuild] #138 FileExistsError: [Errno 17] File exists: '/var/lib/copr-rpmbuild/lockfile.lock'


---

diff --git a/rpmbuild/main.py b/rpmbuild/main.py
index 88c0eb9..5eb6e4a 100755
--- a/rpmbuild/main.py
+++ b/rpmbuild/main.py
@@ -89,21 +89,21 @@ def main():
     log.addHandler(logging.FileHandler(config.get("main", "logfile")))
 
     # Allow only one instance
-    lock = lockfile.LockFile(config.get("main", "lockfile"))
+    lockfd = os.open(config.get("main", "lockfile"), os.O_RDWR)
     try:
-        lock.acquire(timeout=0)
+        os.lockf(lockfd, os.F_TLOCK, 1)
         init(args, config)
         action = build_srpm if args.srpm else build_rpm
         action(args, config)
-    except (lockfile.LockError, RuntimeError, IOError) as ex:
+    except (BlockingIOError, RuntimeError, IOError) as ex:
         log.exception("")
         sys.exit(1)
     except Exception as ex: # Programmer's mistake
         log.exception("")
         sys.exit(1)
     finally:
-        if lock.i_am_locking():
-            lock.release()
+        os.lockf(lockfd, os.F_ULOCK, 1)
+        os.close(lockfd)
 
 
 def init(args, config):