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+---- Thread: [Python] Python backup script If file is already in backup folder then do nothing. (/showthread.php?tid=5913763)
Python backup script If file is already in backup folder then do nothing. - Dcayy - Nov 30, 2018
Hello, guys. how can I compare all files in every dir and subdirs.
If any file from source dir is already in destination dir then don't backup it again just pass
I have made it now just to copy and paste every file from src to dest dirs every time when scripts is started
As example lets take these directories:
Source directory -> /root/$USER/Desktop
Destination directory -> /root/$USER/backup/Desktop
RE: Python backup script If file is already in backup folder then do nothing. - Skidsuper - Nov 30, 2018
If you are checking by simple filename you can raise exception if file exists by passing os.O_EXCL in your open() funtion.
See this for more info.
https://stackoverflow.com/questions/30447221/copy-a-file-but-dont-overwrite-without-tocttou-issues-in-python
RE: Python backup script If file is already in backup folder then do nothing. - caijad - Nov 30, 2018
(Nov 30, 2018 02:00 AM)Dcayy Wrote: Hello, guys. how can I compare all files in every dir and subdirs.
If any file from source dir is already in destination dir then don't backup it again just pass
I have made it now just to copy and paste every file from src to dest dirs every time when scripts is started
As example lets take these directories:
Source directory -> /root/$USER/Desktop
Destination directory -> /root/$USER/backup/Desktop
Code
from os import listdir,getcwd,chdir,mkdir
from os.path import isdir,join
from shutil import copy2
from sys import platform
def get_first_root():
return getcwd()
def create_folder(directory):
try:
mkdir(directory)
except:
pass
def get_name(directory):
if platform =='win32':
return directory.split('\\')[-1]
else:
return directory.split('/')[-1]
def _directory_destiny(start,name):
return join(start,name)
def backup(start,directory_to_copy):
name=get_name(directory_to_copy)
root_with_directory=_directory_destiny(start,name)
create_folder(root_with_directory)
for file in listdir(directory_to_copy):
chdir(root_with_directory)
if isdir(join(directory_to_copy,file)):
backup(root_with_directory,join(directory_to_copy,file))
else:
if file not in listdir(root_with_directory):
copy2(join(directory_to_copy,file),root_with_directory)
else:
print('{} alredy exists'.format(join(directory_to_copy,file)))I Hope that this work for you
RE: Python backup script If file is already in backup folder then do nothing. - Lycosidae024 - Dec 1, 2018
Also, depending on how you are wanting to implement it, you can use someone similar to this which is pretty simple
Code
import os
import shutil
# /root/$USER/Desktop
# /root/$USER/backup/Desktop
source_files = "/root/$USER/Desktop"
destination_files = "/root/$USER/backup/Desktop"
source_files_array = os.listdir(source_files)
destination_files_array = os.listdir(destination_files)
for item in source_files_array:
if not item in destination_files_array:
if os.path.isfile(source_files + "/" + item):
shutil.copy((source_files + "/" + item), destination_files + "/" + item)