diff options
Diffstat (limited to 'tools/net/ynl/ynl-gen-c.py')
| -rwxr-xr-x | tools/net/ynl/ynl-gen-c.py | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/tools/net/ynl/ynl-gen-c.py b/tools/net/ynl/ynl-gen-c.py index 13427436bfb7..c4003a83cd5d 100755 --- a/tools/net/ynl/ynl-gen-c.py +++ b/tools/net/ynl/ynl-gen-c.py @@ -3,6 +3,7 @@ import argparse import collections +import filecmp import os import re import shutil @@ -1168,7 +1169,7 @@ class CodeWriter: if out_file is None: self._out = os.sys.stdout else: - self._out = tempfile.TemporaryFile('w+') + self._out = tempfile.NamedTemporaryFile('w+') self._out_file = out_file def __del__(self): @@ -1177,6 +1178,10 @@ class CodeWriter: def close_out_file(self): if self._out == os.sys.stdout: return + # Avoid modifying the file if contents didn't change + self._out.flush() + if os.path.isfile(self._out_file) and filecmp.cmp(self._out.name, self._out_file, shallow=False): + return with open(self._out_file, 'w+') as out_file: self._out.seek(0) shutil.copyfileobj(self._out, out_file) |