Merge pull request #20 from denpaforks/master

Check that lock file exists, before trying to delete it.

Author: mathroc

spec/TH/Lock/FileLockSpec.php

@@ -124,4 +124,13 @@ public function it_can_acquire_then_release_and_acquire_again()
 
         $this->release();
     }
+
+    public function it_does_not_throw_when_lock_file_does_not_exists()
+    {
+        $this->acquire();
+
+        unlink($this->lock_file);
+
+        $this->release();
+    }
 }

src/FileLock.php

@@ -97,7 +97,9 @@ public function release()
         }
 
         if ($this->remove_on_release && $this->flock(LOCK_EX | LOCK_NB)) {
-            unlink($this->lock_file);
+            if (is_file($this->lock_file)) {
+                unlink($this->lock_file);
+            }
         }
 
         $this->flock(LOCK_UN);