Python: Backup your data on the fly

I have been bitten before, and so to prevent any unforeseen loss of data, I set out to create something of the sort.

I did it.  And I am quite proud of it.  Even though its not perfect... the concept is pretty rad.

Things you will need.

1. Python [Modules] - wmi, shutil, os, sys, winpaths(optional....)
2. TaskScheduler
3. USB or SD card, need to change its name to eBackup, instead of "Removable Disk"

The basic idea is to:

• have a scheduled task run when the system is on idle...
• only runs when a drive is present that is labeled eBackup
• copy directories, specified in a cfg file.

Here is the code for this project:

'''
Created on Apr 30, 2012
@author: rcummins
'''
import wmi
import shutil
import os
import winpaths
import sys
def getDrive(computer=None):
    c = wmi.WMI(computer)
    host_info = c.Win32_LogicalDisk(VolumeName='EBACKUP')
    return host_info[0].Name
def fileChange(source):
    drive = getDrive()
    for dirs in os.listdir(source):
        path = source+'\\'+dirs
        dest = path.replace("C:\\", drive[0]+":\\")
        if os.path.getmtime(dest) - os.path.getmtime(path) < 0:
            shutil.copytree(path, dest)
if __name__ == '__main__':
    computer = ''
    logfile = ''
    x = getDrive(computer)
    try:
        logfile = str(sys.argv[1]).strip()
    except:
        logfile = 'eBrake.cfg'
    if os.path.exists(logfile):
        f = open(logfile,'r')
        for q in f.readlines():
            source = q.strip()
            for(path, dirs, files) in os.walk(source):
                for filez in files:
                    src = os.path.join(path, filez)
                    dst = str(os.path.join(path, filez)).replace("C:\\",x[0]+":\\")
                    if str(src).find(".metadata") < 0:
                        try:
                            if os.path.getmtime(dst) - os.path.getmtime(src) < 0:
                                print "Overwriting >> " + dst
                                shutil.copy(src, dst)
                        except:
                            print "Created: " + dst
                            if not os.path.exists(dst): os.makedirs(dst)
                            try:
                                shutil.copytree(src, dst)
                            except: shutil.copy(src, dst)
    else:              
        print "Create file: %s \n\n Enter paths to backup on SD card\n\ncard needs to be named 'EBACKUP'"%(logfile)
        pass                   

I hope this has either inspired you or saved your data.  Enjoy!