script to disk defragmentation if fragmentation is greater than 30

options="all"#all,one,select

fragmetvol=[]#one example:['C'],all example [],select example ['C','D']

​

import os

import re

from subprocess import PIPE,Popen

import ctypes

import re

import sys

def alert(arg):

    sys.stderr.write("%d%d%d" % (arg, arg, arg))

class disable_file_system_redirection:

    _disable = ctypes.windll.kernel32.Wow64DisableWow64FsRedirection

    _revert = ctypes.windll.kernel32.Wow64RevertWow64FsRedirection

    def __enter__(self):

        self.old_value = ctypes.c_long()

        self.success = self._disable(ctypes.byref(self.old_value))

    def __exit__(self, type, value, traceback):

        if self.success:

            self._revert(self.old_value)

​

def defrag(fragmetvol):

    with disable_file_system_redirection():

        print("Fragment analysis....")

        process=Popen("defrag -u %s:\ "%fragmetvol,stderr=PIPE,stdout=PIPE)

        res,err=process.communicate()

        if err:

            print err

        else:

            print res

        fragmetpercent=re.findall("Total\s+fragmented\s+space\s+=\s+\d+%",res)

        fragpercentage=int(fragmetpercent[0].split()[-1].replace("%",""))

        if fragpercentage>30:

            alert(1)

            processfragment=Popen("defrag C:\ /d /u ")

        else:

            alert(0)

            print "The fragement percentage is less than 30% \n "+fragmetpercent[0]

​

if options=="one":

    print "option: %s"%options

    if len(fragmetvol)==1:

        defrag(fragmetvol[0])

    else:

        print "Failure...."

elif options=="all":

    print "option: %s"%options

    if len(fragmetvol)==0:

        vols=os.popen("wmic logicaldisk where drivetype=3 get caption").read().split()[1:]

        fragl=[i.replace(":","") for i in  vols]

        for i in fragl:

            defrag(i)

    else:

        print "Failure..."

else:

    print "option: %s"%options

    if len(fragmetvol)>1:

        for i in fragmetvol:

            defrag(i)

    else:

        print "Failure..."

​

​