def sftp_sync(local_dir: str, sftp: paramiko.SFTPClient, remote_dir: str):
"""Synchronizes local_dir towards remote_dir (i.e. files in remote_dir
not in local_dir won't be copied to local_dir)"""
info_ = ColorLogger.getLogger('blue')
warn_ = ColorLogger.getLogger('yellow')
info = info_.log
warn = warn_.log
o1 = LocalFileOps()
o2 = SftpFileOps(sftp)
# ensure both base paths exist and are actual folders
o1.mkpath(local_dir)
o2.mkpath(remote_dir)
# stack of (local_relpath_including_base_dir, remote_relpath_including_remote_dir)
S = [(local_dir, remote_dir)]
while S:
relpath, remote_relpath = S.pop()
efd = o1.existsIsFileIsDir(relpath)
if efd == 1:
p1 = relpath
p2 = remote_relpath
o2.mkpath(os.path.dirname(p2))
# upload only if modification time of p1 > modification time of p2
try:
tmp = o2.stat(p2)
remote_times = (int(tmp.st_atime), int(tmp.st_mtime))
except:
# assume remote file not existing
remote_times = (0, 0)
tmp = o1.stat(p1)
local_times = (int(tmp.st_atime), int(tmp.st_mtime))
local_mtime = local_times[1]
remote_mtime = remote_times[1]
if local_mtime > remote_mtime:
warn(
f"Updating remote path {p2} with mtime {remote_mtime} from local path {p1} with mtime {local_mtime}"
)
sftp.put(p1, p2)
sftp.utime(p2, local_times)
else:
info(
f"Won't update remote path {p2} with mtime {remote_mtime}, equal or more recent than local path {p1} with mtime {local_mtime}"
)
elif efd == 2:
S.extend(((pathConcat(relpath, filename, '/')),
(pathConcat(remote_relpath, filename, '/')))
for filename in o1.listdir(relpath))
