Context that replaces the Access/Modification times after file operations (TimeStomping)

stealthy_cat.py

#!/usr/bin/env python
import sys
from stealthy_opener import stealth_open as open

try:
  file_path = sys.argv[1]
  with open(file_path) as f:
    print (f.read())

except IndexError:
  print ("Usage: %s <filename>" % sys.argv[0])
  sys.exit(1)

except Exception as e:
  print (e)
  sys.exit(2)

stealthy_opener.py

from contextlib import contextmanager
import os

@contextmanager
def stealth_open(file_path, options='r'):
  # Get current Access/Modification time of the file
  stat_struct = os.stat(file_path)
  atime = stat_struct.st_atime
  mtime = stat_struct.st_mtime

  # Open the file with provided 'options' ('r[b][w]')
  handle = open(file_path, options)
  # Return the file in 'with' statement
  yield handle
  # Close the Accessed/Modified file
  handle.close()
  
  # Revert Access/Modification times of the file
  os.utime(file_path, (atime, mtime))
  

$ cat /tmp/test;  stat /tmp/test; sleep 2; ./stealthy_cat.py /tmp/test; stat /tmp/test
  File: /tmp/test
  Size: 0         	Blocks: 0          IO Block: 4096   regular empty file
Device: 801h/2049d	Inode: 2384626     Links: 1
Access: (0644/-rw-r--r--)  Uid: ( 1000/  unused)   Gid: ( 1000/  unused)
Access: 2018-04-20 09:44:40.722821173 -0400
Modify: 2018-04-20 09:25:41.896007000 -0400
Change: 2018-04-20 09:44:29.650297635 -0400
 Birth: -

  File: /tmp/test
  Size: 0         	Blocks: 0          IO Block: 4096   regular empty file
Device: 801h/2049d	Inode: 2384626     Links: 1
Access: (0644/-rw-r--r--)  Uid: ( 1000/  unused)   Gid: ( 1000/  unused)
Access: 2018-04-20 09:44:40.722821000 -0400
Modify: 2018-04-20 09:25:41.896007000 -0400
Change: 2018-04-20 09:44:42.734916697 -0400
 Birth: -