If you are used to use software downloaded from git repositories and you are tired to manually pull latest version of your favourite software, this quick script for auto-update all gits in a given folder might make you save a bunch of minutes.

gitupdate.py

#!/usr/bin/env python
#-------------------------------------------------------------
# Name:       gitupdate.py
# Purpose:    Update all git repositories found in subfolders.
# Author:     stk
# Created:    14/04/2013
# Copyright:   (c) stk
# Python Version:   2.7
# Dependencies: git,hg,svn
#-------------------------------------------------------------
import os
import subprocess
import argparse

DIR=['.git','.hg','.svn']
CMD={'.git':'git pull origin master','.hg':'hg pull default','.svn':'svn update'}

def update(projectpath,cmd):
    print ">>> Updating '%s':"%(os.path.basename(projectpath))
    res=''
    try:
       updcmd="cd '%s';"%projectpath
       updcmd+=cmd
       res=subprocess.check_output(updcmd,shell=True)
       outmsg='SUCCESS'
    except subprocess.CalledProcessError as e:
       outmsg='FAIL: %s '%str(e)
       print res
    print "<<< Done '%s' (%s)"%(os.path.basename(projectpath),outmsg)

def navigate(folder):
    """ """
    for (path,dirs,files) in os.walk(folder):
	for D in DIR:
	    if D in dirs:
                update(path,CMD[D])

if __name__ == '__main__':
   parser = argparse.ArgumentParser()
   parser.add_argument("-f","--folder", help="Folder where to search for git projects",action="store")
   args = parser.parse_args()
   path = os.path.curdir
   if args.folder:
      path = args.folder
   navigate(path)