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Atomic save should preserve stat if the file exists

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Kovid Goyal 2021-08-08 10:41:46 +05:30
parent 71f1f3aa64
commit b7d603c4de
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1 changed files with 4 additions and 0 deletions
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4
kitty/config.py
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@ -35,12 +35,16 @@ def build_ansi_color_table(opts: Optional[Options] = None) -> int:
def atomic_save(data: bytes, path: str) -> None:
import shutil
import tempfile
path = os.path.realpath(path)
fd, p = tempfile.mkstemp(dir=os.path.dirname(path), suffix='.tmp')
try:
with os.fdopen(fd, 'wb') as f:
f.write(data)
with suppress(FileNotFoundError):
shutil.copystat(path, p)
os.utime(p)
os.replace(p, path)
finally:
try: