fix atomic write

modules/shared.py

@@ -214,7 +214,7 @@ def readfile(filename, silent=False, lock=False):
     return data
 
 
-def writefile(data, filename, mode='w', silent=False):
+def writefile(data, filename, mode='w', silent=False, atomic=False):
     lock = None
     locked = False
     import tempfile
@@ -241,13 +241,15 @@ def writefile(data, filename, mode='w', silent=False):
             raise ValueError('not a valid object')
         lock = fasteners.InterProcessReaderWriterLock(f"{filename}.lock", logger=log)
         locked = lock.acquire_write_lock(blocking=True, timeout=3)
-        with tempfile.NamedTemporaryFile(mode=mode, encoding="utf8", delete=False, dir=os.path.dirname(filename)) as f:
-            f.write(output)
-            f.flush()
-            os.fsync(f.fileno())
-            os.replace(f.name, filename)
-        # with open(filename, mode=mode, encoding="utf8") as file:
-        #    file.write(output)
+        if atomic:
+            with tempfile.NamedTemporaryFile(mode=mode, encoding="utf8", delete=False, dir=os.path.dirname(filename)) as f:
+                f.write(output)
+                f.flush()
+                os.fsync(f.fileno())
+                os.replace(f.name, filename)
+        else:
+            with open(filename, mode=mode, encoding="utf8") as file:
+                file.write(output)
         t1 = time.time()
         if not silent:
             log.debug(f'Save: file="{filename}" json={len(data)} bytes={len(output)} time={t1-t0:.3f}')