path: root/abs/core/LinHES-system/add_storage.py

#!/usr/bin/python2
#Program used to auto_add new storage to mythtv storage groups
#If it's a new disk it will erase the entire disk and reformat
#
#Drives that are mount, in fstab, size < 5000 bytes, optical or have already been seen will not be presented as an option.
#


import dbus
import pickle
import commands
import sys,os
import random, string
import ConfigParser
from ConfigParser import SafeConfigParser
import glob

from MythTV import MythDB, MythBE, Recorded, MythError
from socket import timeout, gethostname


storage_dir = "/etc/storage.d"
pickle_file = "%s/storage.pkl" %storage_dir


SG_MAP_BE={ 'Default'    :'media/tv',
'LiveTV'     :'media/tv/live',
'DB Backups' :'backup/mythtv_backups/',
'Streaming'  :'media/streaming'}


SG_MAP_FE={
  'Videos'     :'media/video',
  'Trailers'   :'media/video_stuff/trailers',
  'Coverart'   :'media/video_stuff/coverart',
  'Fanart'     :'media/video_stuff/fanart',
  'Banners'    :'media/video_stuff/banners',
  'Screenshots':'media/video_stuff/screenshots',
  }

FS_LIST_BE=[]
for key in SG_MAP_BE.keys():
    FS_LIST_BE.append(SG_MAP_BE[key])

FS_LIST_FE=[]
for key in SG_MAP_FE.keys():
    FS_LIST_FE.append(SG_MAP_FE[key])


class disk_device:
    def  __init__(self,device,storage_dir):
        device_obj = bus.get_object("org.freedesktop.UDisks", device)
        device_props = dbus.Interface(device_obj, dbus.PROPERTIES_IFACE)
        self.storage_dir = storage_dir
        self.top_mount_dir = "/data/storage"
        self.config = ConfigParser.RawConfigParser()
        self.fs_map = self.get_fsmap()
        self.is_device = self.get_is_device(device_props)
        self.vendor = self.get_vendor(device_props)
        self.model = self.get_model(device_props)

        self.mmount = False
        self.f = self.get_mounts(device_props)
        self.is_mounted = self.get_is_mounted(device_props)

        self.parition_size = self.get_partition_size(device_props)
        self.device_size = self.get_device_size(device_props)
        self.serial_number = self.get_serial_number(device_props)
        self.read_only = self.get_is_readonly(device_props)
        self.is_optical = self.get_is_optical_disc(device_props)
        self.connection = self.get_connections(device_props)
        self.block_path = self.get_device_file(device_props)
        self.device_file_path = self.get_device_file_path(device_props)
        self.block_partition="%s1" %self.block_path
        self.in_use = self.get_in_use()
        self.uuid=''
        self.new_mount_point=''
        self.disk_num=''

    def set_partition(self,partition):
        self.block_partition = "%s%s" %(self.block_path,partition)

    def set_mmount(self,flag):
        self.mmount = flag

    def set_disk_num(self,num):
        self.disk_num=num

    def get_is_device(self,device_props):
        return device_props.Get('org.freedesktop.UDisks.Device', "DeviceIsDrive")

    def get_vendor(self,device_props):
        return device_props.Get('org.freedesktop.UDisks.Device', "DriveVendor")

    def get_model(self,device_props):
        return device_props.Get('org.freedesktop.UDisks.Device', "DriveModel")

    def get_mounts(self,device_props):
        return device_props.Get('org.freedesktop.UDisks.Device', "DeviceMountPaths")

    def get_is_mounted(self,device_props):
       return device_props.Get('org.freedesktop.UDisks.Device', "DeviceIsMounted")

    def get_name(self):
        filename="%s_%s" %(self.model.replace(' ',''),
                                self.serial_number.replace(' ',''))
        return filename

    def get_in_use(self):
        in_use = False
        for i in self.fs_map:
            if self.block_path in i[0]:
                in_use = True
                break
        return in_use

    def get_partition_size(self,device_props):
        return device_props.Get('org.freedesktop.UDisks.Device', "PartitionSize")

    def get_device_size(self,device_props):
        return device_props.Get('org.freedesktop.UDisks.Device', "DeviceSize")


    def get_serial_number(self,device_props):
        serial_number = device_props.Get('org.freedesktop.UDisks.Device', "DriveSerial")
        random_string = os.urandom(5)
        if serial_number == '':
            serial_number = "".join( [random.choice(string.letters) for i in xrange(6)] )
            serial_number = "NSW%s" %serial_number
        return serial_number

    def get_is_readonly(self,device_props):
        return device_props.Get('org.freedesktop.UDisks.Device', "DeviceIsReadOnly")

    def get_is_optical_disc(self,device_props):
        return device_props.Get('org.freedesktop.UDisks.Device', "DeviceIsOpticalDisc")

    def get_connections(self,device_props):
       return device_props.Get('org.freedesktop.UDisks.Device', "DriveConnectionInterface")

    def get_device_file(self,device_props):
       return  device_props.Get('org.freedesktop.UDisks.Device', "DeviceFile")

    def get_device_file_path(self,device_props):
        path = device_props.Get('org.freedesktop.UDisks.Device', "DeviceFileByPath")
        try:
            path = path[0]
        except:
            path = "None"

        return path


    def partition_disk(self):
        print "    Creating new partiton table"
        cmd = "parted -s -a optimal %s mklabel gpt" %self.block_path
        runcmd(cmd)
        cmd = "parted -s -a optimal %s mkpart primary \" 1 -1\"" %self.block_path
        runcmd(cmd)
        return

    def get_fsmap(self):
        #block,point,fs
        fs_map=[]

        f = open('/proc/mounts','r')
        mounts=f.readlines()
        f.close()
        for line in mounts:
            temp_fs=[]
            split_line=line.split()
            block=split_line[0]
            mountp=split_line[1]
            fs=split_line[2]
            block=os.path.realpath(block)
            if block.startswith("/dev"):
                temp_fs.append(block)
                temp_fs.append(mountp)
                temp_fs.append(fs)
                fs_map.append(temp_fs)
        return fs_map

    def find_fstype(self,moutpoint):
        fstype="xfs"
        mp=['/myth', '/data/storage/disk0']
        for i in self.fs_map:
                if i[1] in mp:
                    fstype = i[2]
                    break
        return fstype


    def format_disk(self):
        fstab = self.read_fstab()
        #lookup format
        current_media_mount = self.find_options_type(fstab)[1]
        new_fstype = self.find_fstype(current_media_mount)
        #setting self.new_fstype so that it can be referenced when setting fstab
        self.new_fstype = new_fstype
        #do format
        if new_fstype == "xfs":
            cmd = "mkfs -t %s -f %s " %(new_fstype,self.block_partition)
        else:
            cmd = "mkfs -t %s %s " %(new_fstype,self.block_partition)
        print "    Formating %s with %s" %(self.block_partition,new_fstype)
        runcmd(cmd)
        return

    def find_uuid(self,partition):
        #logging.info("Finding the UUID for %s...", partition)
        cmd = "blkid -s UUID %s" %partition
        tmpuuid = runcmd(cmd)[1]
        splituuid = tmpuuid.partition("=")
        uuid = splituuid[2].replace('"', "")
       # logging.info("The uuid is %s", uuid)
        if uuid == '':
            print "Could not find a UUID for device: %s" %partition
            sys.exit(1)
        self.uuid = uuid.strip()
        return uuid.strip()

    def read_fstab(self):
        f = open('/etc/fstab', 'r')
        fstab=f.readlines()
        f.close()
        return fstab

    def find_options_type(self,fstab):
        mp=['/myth', '/data/storage/disk0']
        for i in fstab:
            split_line=i.split()
            try:
                if split_line[1] in mp:
                    options = split_line[3]
                    break
                else:
                    options = "defaults"
                    mount_point = i
            except:
                options = "defaults"
        return options,i


    def add_fstab(self,bind=False):
        new_fstab_list=['UUID=', 'mount_point', 'auto', 'defaults', '0', '1']
        fstab=self.read_fstab()


        #determine mount_path
        self.new_mount_point="%s/%s_%s" %(self.top_mount_dir,self.model.replace(' ',''),self.serial_number.replace(' ',''))

        if bind:
            new_fstab_list=["/data/storage/disk0" , self.new_mount_point , "none" , "rw,bind", '0', '0']
            uuid=self.find_uuid(self.block_partition)
        else:
        #determine options

            new_options = self.find_options_type(fstab)[0]

            #find blkid
            #self.block_partition="%s1" %self.block_path
            uuid=self.find_uuid(self.block_partition)

            #construct new line
            new_fstab_list[0]="UUID=%s" %uuid
            new_fstab_list[1]=self.new_mount_point
            new_fstab_list[3]=new_options

        new_fstab_line='\t'.join(new_fstab_list)
        new_fstab_line="%s\n" %new_fstab_line
        fstab.append(new_fstab_line)

        #add line to fstab
        f = open('/etc/fstab', 'w')
        #f = open('/tmp/fstab', 'w')
        for i in fstab:
            f.write(i)
            #f.write("\n")
        f.close()
        return

    def mount_disk(self,no_mount=False):
        try:
            os.stat(self.new_mount_point)
        except:
            os.makedirs(self.new_mount_point)
        if no_mount == False:
            cmd = "mount %s" %self.new_mount_point
            runcmd(cmd)
        return

    def mkdirs(self,FS_LIST):
        print "    Creating Directory stucture"
        for y in FS_LIST:
            new_dir="%s/%s" %(self.new_mount_point,y)
            try:
                os.stat(new_dir)
            except:
                os.makedirs(new_dir)
                cmd="chown -R mythtv:mythtv /%s" %self.new_mount_point
                runcmd(cmd)
                cmd="chmod -R 775 /%s" %self.new_mount_point
                runcmd(cmd)

    def add_sg(self,DB,host,SG_MAP,weight='0',install_call=False):
        print "    Adding storage groups"
        sgweight=int(weight)
        for key in SG_MAP.iterkeys():
            #print key," : ", SG_MAP[key]
            gn=key
            hn=host
            dn="%s/%s" %(self.new_mount_point,SG_MAP[key])
            #print dn
            #print gn
            #print hn
            if install_call == True :
                print "Will write SG for stuff after the fact"
            else:
                with DB as c:
                    try:
                        c.execute("""insert into storagegroup (groupname,hostname,dirname) values (%s,%s,%s)""",(gn,hn,dn))
                        print "        Adding  location: %s  to storagegroup %s" %(dn,gn)
                    except:
                        print "        *Error inserting %s into storage groups" %dn

                    if sgweight > 0:
                        try:
                            #("SGweightPerDir:server2:/mnt/video", 99, "server2");
                            sgw="SGweightPerDir:%s:%s" %(hn,dn)
                            #print sgw
                            #print sgweight
                            #print hn

                            c.execute("""insert into settings (value,data,hostname) values (%s,%s,%s)""",(sgw,sgweight,hn))
                            print "        Adding storage group weight of %s for %s\n" %(sgweight,gn)
                        except:
                            print "        *Error setting storage group weight %s for %s\n" %(sgweight,gn)

        return

    def write_config(self):
        print "    Writing out storage.d conf file"
        self.config.add_section('storage')
        self.config.set('storage','uuid',self.uuid)
        self.config.set('storage','mountpoint',self.new_mount_point)
        self.config.set('storage','shareable','True')
        self.config.set('storage','mmount',self.mmount)
        self.config.set('storage','disk_num',self.disk_num)


        filename="%s_%s.conf" %(self.model.replace(' ',''),
                                self.serial_number.replace(' ',''))

        configfile="/etc/storage.d/%s" %filename
        print "     %s" %configfile
        with open(configfile, 'wb') as configfile:
            self.config.write(configfile)
        return

    def symlink_disk(self):
        print "    Creating symlink for disk number"
        disk_ln="%s/disk%s" %(self.top_mount_dir,self.disk_num)
        cmd = "ln -s %s %s" %(self.new_mount_point,disk_ln)
        print cmd
        runcmd(cmd)

    def symlink(self):
        pass
        print "    Creating symlink"
        cmd = "ln -s %s/media /myth " %(self.new_mount_point)
        runcmd(cmd)



#end of class


def runcmd(cmd):
    if True :
        pass
    else:
        cmd = "echo "+cmd
    #print cmd
    cmdout = commands.getstatusoutput(cmd)
    #logging.debug("    %s", cmdout)
    return cmdout




def scan_system():

    ud_manager_obj = bus.get_object("org.freedesktop.UDisks", "/org/freedesktop/UDisks")
    ud_manager = dbus.Interface(ud_manager_obj, 'org.freedesktop.UDisks')
    current_drive_list=[]
    for dev in ud_manager.EnumerateDevices():
        drive = disk_device(dev,storage_dir)

        if drive.is_device and drive.device_size > 5000 and not drive.is_optical :
            current_drive_list.append(drive)
    return current_drive_list

def read_known_list():
    #reading pickle file
    known_drive_list=[]
    try:
        pkl_file = open(pickle_file, 'rb')
        known_drive_list = pickle.load(pkl_file)
        pkl_file.close()
    except:
        pass
    return known_drive_list


def write_known_drive_list(known_drive_list):
    output = open(pickle_file, 'wb')
    pickle.dump(known_drive_list, output, -1)
    output.close()


def search_for_match(system_drive,known_drive_list):
    match_drive=False
    for y in known_drive_list:
        if system_drive.serial_number.startswith("NSW"):
            #print "Match_test: hash"
            system_drive_hash = "%s_%s_%s" %(system_drive.model,system_drive.parition_size,system_drive.device_file_path)
            y_drive_hash = "%s_%s_%s" %(y.model,y.parition_size,y.device_file_path)
            if system_drive_hash == y_drive_hash :
                match_drive = True
                print "\n*   No serial number was found, matched using hash method: %s" %system_drive.model
                break

        elif y.serial_number == system_drive.serial_number:
            #print "Match_test: serial number"
            match_drive=True
            break

    return match_drive


def prompt_to_add(current_drive):
    loop = True
    while loop:
        str1 = raw_input("\n    Adding the drive will remove all contents on the drive. \n    Do you wish enable this drive for MythTV storage(Y/N)?:")

        if str1 in ['Y','N','y','n']:
            loop = False
            break
        print "\n"
    if str1 == 'Y' or str1 == 'y':
        rc = True
    else:
        rc = False
    return rc

def prompt_to_continue():
    loop = True
    #while loop:
    print "\n\n\n\n"
    str1 = raw_input("\n    Ready to add additional storage!\n    Press Y to continue, anything else to abort:")

        #if str1 in ['Y','N','y','n']:
        #    loop = False
        #    break
        #print "\n"
    if str1 == 'Y' or str1 == 'y':
        rc = True
    else:
        rc = False
    print "-----"
    return rc

def prompt_sg(dir_be_sg,dir_fe_sg):
    #check for backend storage groups
    if dir_be_sg != True:
        loop = True
        print "@@@@@@@@@@@@@@@@@@@@@@"
        prompt_string='''
    Backend Storage Groups are used for things like
    TV Recordings and database backups.

    The content on these storage groups will
    only be available while the system is online.

    Do you wish enable this system for Backend Storage Groups(Y/N)?:'''

        while loop:
            str1 = raw_input(prompt_string)
            if str1 in ['Y','N','y','n']:
                loop = False
                break
            print "\n"

        if str1 == 'Y' or str1 == 'y':
            dir_be_sg = True
            print "    ** Will add Backend Storage Groups!"
        else:
            print "    ** Will NOT add Backend Storage Groups!"
            dir_be_sg = False

    #now for frontend storage groups
    if dir_fe_sg != True:
        loop = True
        print "++++++++++++++++++++++++"
        prompt_string='''
    Frontend Storage Groups are used for videos.
    The content on these storage groups will
    only be available while the system is online.

    Do you wish enable this system for Frontend Storage Groups(Y/N)?:'''
        while loop:
            str1 = raw_input(prompt_string)
            if str1 in ['Y','N','y','n']:
                loop = False
                break
            print "\n"

        if str1 == 'Y' or str1 == 'y':
            dir_fe_sg = True
            print "    ** Will add Frontend Storage Groups!"
        else:
            dir_fe_sg = False
            print "    ** Will NOT add Frontend Storage Groups!"

    return dir_be_sg,dir_fe_sg

def remove_pickle():
    try:
        print "* Resetting list of known drives."
        os.remove(pickle_file)
    except:
        pass

def last_disk_num():
    parser = SafeConfigParser()
    num_list = []
    for conf_file in glob.glob('%s/*.conf' %storage_dir):
        parser.read(conf_file)
        disk_num = parser.get('storage', 'disk_num')
        num_list.append(int(disk_num))
        num_list.sort()
    return num_list[-1]
#--------------------------------------------

def main(scan_only, destruction, no_mount, install_call , dir_fe_sg, dir_be_sg):
    global bus
    bus = dbus.SystemBus()

    system_drive_list = scan_system()
    known_drive_list=[]
    known_drive_list = read_known_list()
    process_list=[]
    no_process_list=[]


    for i in system_drive_list:
        #print i.mount_path
        #print i.is_mounted
        #print i.in_use
        #print i.model
        #print i.block_path
        #print "--"

        if search_for_match(i,known_drive_list) or i.in_use :
            print "\n"
            print "    Storage is already in use or previously skipped:%s" %i.model
            print "        location: %s" %i.block_path
            print "        size: %s" %i.device_size
            continue

        else:
            if not scan_only:
                print "\n"
                print "-------------------------------------------------------------"
                print "    Found new hard drive: %s" %i.model
                print "    location: %s" %i.block_path
                print "    size: %s " %i.device_size

                if prompt_to_add(i) :
                    print "\n    Disk will be added to the storage pool!"
                    process_list.append(i)
                else:
                    no_process_list.append(i)
            else:
                process_list.append(i)
    print "    End of scan"
    print "---------------------------------------"

    if scan_only:
        if len(process_list) > 0:
            f = open('/tmp/scan_report', 'w')
            for i in process_list:
                f.write("drive: %s , location: %s ,size: %s \n" %(i.model,i.block_path,i.device_size))
                print "drive: %s , location: %s ,size: %s \n" %(i.model,i.block_path,i.device_size)
            f.close()
        sys.exit(0)

    for i in no_process_list:
        system_drive_list.append(i)


    if len(process_list) > 0:
        DB = MythDB()
        host=gethostname()
        for y in process_list:
            system_drive_list.remove(y)
        write_known_drive_list(system_drive_list)
    else:
        print "\nDid not find any new storage to add.\n"
        write_known_drive_list(system_drive_list)
            #BE = MythBE(db=DB)


    #save new list to disk_device
    #write_known_drive_list(system_drive_list)
    #disk_num = last_disk_num()


    if len(process_list) > 0:
        print "    Will add %s disks to systems" %len(process_list)

        dir_be_sg , dir_fe_sg = prompt_sg(dir_be_sg,dir_fe_sg)
        if prompt_to_continue() == True:
            write_known_drive_list(system_drive_list)
            disk_num = last_disk_num()
            for i in process_list:
                print "    Drive: %s" %(i.get_name())
                disk_num = disk_num + 1
                if destruction == True:
                    i.partition_disk()
                    i.format_disk()
                i.add_fstab()
                i.mount_disk(no_mount)
                if destruction == True:
                    if dir_fe_sg == True:
                        i.mkdirs(FS_LIST_FE)
                    if dir_be_sg == True:
                        i.mkdirs(FS_LIST_BE)

                i.set_disk_num(disk_num)
                i.write_config()
                system_drive_list.append(i)
                write_known_drive_list(system_drive_list)

                i.symlink_disk()

                if dir_fe_sg == True:
                    i.add_sg(DB,host,SG_MAP_FE)
                if dir_be_sg == True:
                        i.add_sg(DB,host,SG_MAP_BE)

                print "-----"
            cmd = "systemconfig.py -m fileshare"
            runcmd(cmd)
        #i.add_sg(DB,host,SG_MAP)

def myth_main(no_mount,install_call,dir_fe_sg):
    global bus
    bus = dbus.SystemBus()
    #search for root
    f = open('/etc/fstab', 'r')
    fstab=f.readlines()
    f.close()
    for i in fstab:
        split_line=i.split()
        if not split_line:
            continue

        try:
            if split_line[1] ==  "/" :
                uuid_device = split_line[0]
                break
        except:
            print "Couldn't find / in fstab"
            sys.exit(1)
    if uuid_device.startswith("UUID"):
        uuid_device = uuid_device.split("=")[1]
        cmd = "blkid -U %s" %uuid_device
        device = runcmd(cmd)[1]
    else:
        device = uuid_device.strip()
    #should have something like /dev/sda1
    #remove all the digits
    device = ''.join([letter for letter in device if not letter.isdigit()])


    system_drive_list = scan_system()
    for i in system_drive_list:
        if i.block_path == device:
            break
    else:
        print "Couldn't find root device in block list"
        sys.exit(1)
    if not install_call == True:
        DB = MythDB()
        host=gethostname()
    else:
        DB = None
        host=gethostname()


    print "    Drive: %s" %(i.get_name())
    i.set_mmount(True)
    i.set_partition("7")
    i.set_disk_num(0)
    i.add_fstab(True)
    #if not install_call:
    i.mount_disk(no_mount)
    i.write_config()
    #no need to make the sub directories because the install process has taken care of it.
    if dir_fe_sg == True:
        i.add_sg(DB,host,SG_MAP_FE,'99',install_call)
    if dir_be_sg == True:
        i.add_sg(DB,host,SG_MAP_BE,'99',install_call)

    i.symlink()
    cmd = "systemconfig.py -m fileshare"
    runcmd(cmd)

class reconstruct_path:
    def  __init__(self,conf_file):
        self.conf_file = conf_file
        parser = SafeConfigParser()
        parser.read(self.conf_file)


        self.uuid = parser.get('storage', 'uuid')
        self.mount_point = parser.get('storage', 'mountpoint')
        self.shareable = parser.get('storage', 'shareable')
        self.myth_mount = parser.get('storage', 'mmount')
        self.bind = self.myth_mount
        self.disk_num = parser.get('storage', 'disk_num')
        self.top_mount_dir = os.path.dirname(self.mount_point)

    def get_conf(self):
       return self.conf_file

    def get_uuid(self):
        return self.uuid

    def get_mount_point(self):
        return self.mount_point

    def get_shareable(self):
        return self.shareable

    def get_is_myth_mount(self):
        return self.myth_mount

    def get_disk_num(self):
        return self.disk_num

    def create_mount_point(self):
        try:
            os.stat(self.mount_point)
        except:
            os.makedirs(self.mount_point)

    def find_options_type(self,fstab):
        mp=['/myth', '/data/storage/disk0']
        for i in fstab:
            split_line=i.split()
            try:
                if split_line[1] in mp:
                    options = split_line[3]
                    break
                else:
                    options = "defaults"
                    mount_point = i
            except:
                options = "defaults"
        return options,i

    def read_fstab(self):
        f = open('/etc/fstab', 'r')
        fstab=f.readlines()
        f.close()
        return fstab

    def check_in_fstab(self,fstab,check_path):

        for line in fstab:
            if line.find(check_path) > -1:
                return True
        return False

    def append_fstab(self,line):
        new_fstab_line='\t'.join(line)
        new_fstab_line="%s\n" %new_fstab_line

        f = open('/etc/fstab', 'a')
        #f = open('/tmp/fstab', 'a')
        f.write(new_fstab_line)
        f.write("\n")
        f.close()

    def symlink(self):
        print "    Creating symlink"
        if not os.path.exists("/myth"):
            cmd = "ln -s %s/media /myth " %(self.mount_point)
            runcmd(cmd)
        else:
            print "    Skipping symlink, path already present"

    def symlink_disk(self):
        print "    Creating symlink for disk number"
        disk_ln="%s/disk%s" %(self.top_mount_dir,self.disk_num)
        cmd = "ln -s %s %s" %(self.mount_point,disk_ln)
        runcmd(cmd)


    def add_fstab(self):
        #new_fstab_list=['UUID=', 'mount_point', 'auto', 'defaults', '0', '1']
        new_fstab_list=['UUID=', 'mount_point', self.new_fstype, 'defaults', '0', '1']
        fstab=self.read_fstab()

        if self.bind == "True":
            self.symlink()

        if self.check_in_fstab(fstab,self.uuid) == True:
            print "    Found storage in fstab, will not add it"
        else:
            print "    Adding storage to fstab"
            if self.bind == "True" :
                print "    Bind mount"
                new_fstab_list=["/data/storage/disk0" , self.mount_point , "none" , "rw,bind", '0', '0']
                if self.check_in_fstab(fstab,self.mount_point) == False:
                    self.append_fstab(new_fstab_list)
                else:
                    print "    Found bind storage in fstab, will not add it"

            else:
                #construct new line
                new_options = self.find_options_type(fstab)[0]
                new_fstab_list[0]="UUID=%s" %self.uuid
                new_fstab_list[1]=self.mount_point
                new_fstab_list[3]=new_options
                self.append_fstab(new_fstab_list)

    def mount_disk(self,no_mount=False):
        try:
            os.stat(self.mount_point)
        except:
            os.makedirs(self.mount_point)
        if no_mount == False :
            cmd = "mount %s" %self.mount_point
            runcmd(cmd)
        return

def reconstruct_mounts(no_mount):
    print "Recreating devices based on contents of /etc/storage.d"
    for conf_file in glob.glob('%s/*.conf' %storage_dir):
        print "\n"
        cf = reconstruct_path(conf_file)

        #print cf.get_conf()
        #print cf.get_uuid()
        print "    %s" %cf.get_mount_point()
        #print cf.get_shareable()
        #print cf.get_is_myth_mount()
        #print cf.get_disk_num()

        cf.create_mount_point()
        cf.add_fstab()
        cf.symlink_disk()
        cf.mount_disk(no_mount)

    pass


def usage():
    help='''\n
    Add storage is designed to find and setup new disks for mythtv usage.
    It's a powerfull that could destroy data if not used correctly, so please be careful.
    Normal operations include (in this order):
        Partition the disk
        Format the disk
        Add disk to /etc/fstab
        Mount the disk
        Create the directory
        Write out the config file to /etc/storage.d
        Add new locations to mythtv storage groups

    options:

    --no_mount :  Do not mount the disk, only add it to /etc/fstab and create the dir.
    --no_destruction:  Will not  partition or format the disk
    --new_init :  Erase the list of new disks and rescan.
    --report :  will scan the disks and print out if it found new storage.
    --add_fe_sg :  Will only create the storage group dir for videos..excludes tv
    --add_be_sg :  Will only create the storage group dir for TV, backups, streaming
    '''
    print help
    sys.exit(0)




if __name__ == "__main__":
    scan_only = False
    myth_mount = False
    no_mount = False
    destruction = True
    install_call = False
    dir_fe_sg = False
    dir_be_sg = False
    reconstruct = False
    try:
        os.remove("/tmp/scan_report")
    except:
        pass

    if not os.geteuid()==0:
        sys.exit("\nRoot access is required to run this program\n")

    if "--help" in sys.argv:
        usage()

    if "--install_call" in sys.argv:
        install_call = True

    if "--no_mount" in sys.argv :
        no_mount = True

    if "--no_destruction" in sys.argv:
        destruction = False

    if "--new_init" in sys.argv :
        remove_pickle()

    if "--report" in sys.argv :
        scan_only = True

    if "--add_fe_sg" in sys.argv:
        dir_fe_sg = True

    if "--add_be_sg" in sys.argv:
        dir_be_sg = True


    if "--reconstruct" in sys.argv:
        reconstruct = True

    if "--double_myth" in sys.argv:
        myth_main(no_mount,install_call,dir_fe_sg)
    elif reconstruct == True:
        reconstruct_mounts(no_mount)
    else:
        main(scan_only,destruction,no_mount, install_call, dir_fe_sg, dir_be_sg)