WriteFileAtomic: add fsync

closes #27
function61 · Oct 8, 2024 · 168ace4 · 168ace4
1 parent 1fcc3ef
commit 168ace4
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/os/osutil/writefileatomic.go b/os/osutil/writefileatomic.go
@@ -70,6 +70,11 @@ func WriteFileAtomic(filename string, produce func(io.Writer) error, options ...
 			}
 		}
 
+		// `Close()` alone doesn't guarantee that the data has been successfully saved to disk.
+		if err := file.Sync(); err != nil {
+			return err
+		}
+
 		if err := file.Close(); err != nil { // double close intentional
 			return err
 		}