mirror of
https://git.launchpad.net/livecd-rootfs
synced 2025-10-31 08:54:06 +00:00
39 lines
1.1 KiB
Python
Executable File
39 lines
1.1 KiB
Python
Executable File
#!/usr/bin/python3
|
|
|
|
# usage: sync-mtime src dst
|
|
#
|
|
# synchronize atime/mtime on files between src and dst.
|
|
#
|
|
# src and dst are directories, where dst is expected to contain a subset of the
|
|
# files found in src. for each file present in dst or a subdirectory thereof,
|
|
# if atime/mtime differ between the same file in src and that file in dst,
|
|
# update atime/mtime on the file in dst.
|
|
|
|
import os
|
|
import sys
|
|
from pathlib import Path
|
|
|
|
|
|
def time_eq(a: os.stat_result, b: os.stat_result) -> bool:
|
|
return (
|
|
(a.st_mtime_ns == b.st_mtime_ns) and
|
|
(a.st_atime_ns == b.st_atime_ns)
|
|
)
|
|
|
|
|
|
src, dst = sys.argv[1:]
|
|
for dirpath, dirnames, filenames in Path(dst).walk():
|
|
for filename in filenames:
|
|
dst_file = dirpath / filename
|
|
if not dst_file.is_file():
|
|
continue
|
|
src_file = src / dst_file.relative_to(dst)
|
|
|
|
src_stat = src_file.stat(follow_symlinks=False)
|
|
dst_stat = dst_file.stat(follow_symlinks=False)
|
|
if time_eq(src_stat, dst_stat):
|
|
continue
|
|
|
|
ns = (src_stat.st_atime_ns, src_stat.st_mtime_ns)
|
|
os.utime(dst_file, ns=ns, follow_symlinks=False)
|