Get timestamp of the last commit in git repository

last_commit.py

#!/usr/bin/python

import subprocess
import shlex
import re
from optparse import OptionParser

def git_version(repository_path):
    commad = shlex.split( "git log -1 --pretty=format:%ci" )
    p = subprocess.Popen(commad, stdout=subprocess.PIPE, cwd=repository_path)
    
    out, err = p.communicate()
    m = re.search('\d{4}-\d{2}-\d{2}\s+\d{2}:\d{2}:\d{2}', out)
    
    return m.group(0)

usage  = "usage: %prog -f folderpath"
parser = OptionParser(usage=usage)

parser.add_option("-f", help="the path to the git repository")
(options, args) = parser.parse_args()

path = options.f

if path:
    print( "timestamp: " + git_version( path ) )

else:
    parser.print_help()