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multibootusb/scripts/osdriver.py

142 lines
4.1 KiB
Python

import logging
import logging.handlers
import os
import platform
import subprocess
import sys
def log(message, info=True, error=False, debug=False, _print=True):
"""
Dirty function to log messages to file and also print on screen.
:param message:
:param info:
:param error:
:param debug:
:return:
"""
if _print is True:
print(message)
# remove ANSI color codes from logs
# message_clean = re.compile(r'\x1b[^m]*m').sub('', message)
if info is True:
logging.info(message)
elif error is not False:
logging.error(message)
elif debug is not False:
logging.debug(message)
def resource_path(relativePath):
"""
Function to detect the correct path of file when working with sourcecode/install or binary.
:param relativePath: Path to file/data.
:return: Modified path to file/data.
"""
# This is not strictly needed because Windows recognize '/'
# as a path separator but we follow the discipline here.
relativePath = relativePath.replace('/', os.sep)
for dir_ in [
os.path.abspath('.'),
os.path.abspath('..'),
getattr(sys, '_MEIPASS', None),
os.path.dirname(os.path.dirname( # go up two levels
os.path.realpath(__file__))),
'/usr/share/multibootusb'.replace('/', os.sep),
]:
if dir_ is None:
continue
fullpath = os.path.join(dir_, relativePath)
if os.path.exists(fullpath):
return fullpath
log("Could not find resource '%s'." % relativePath)
def get_physical_disk_number(usb_disk):
"""
Get the physical disk number as detected ny Windows.
:param usb_disk: USB disk (Like F:)
:return: Disk number.
"""
partition, logical_disk = wmi_get_drive_info(usb_disk)
log("Physical Device Number is %d" % partition.DiskIndex)
return partition.DiskIndex
def wmi_get_drive_info(usb_disk):
assert platform.system() == 'Windows'
import wmi
c = wmi.WMI()
for partition in c.Win32_DiskPartition():
logical_disks = partition.associators("Win32_LogicalDiskToPartition")
# Here, 'disk' is a windows logical drive rather than a physical drive
for disk in logical_disks:
if disk.Caption == usb_disk:
return (partition, disk)
raise RuntimeError('Failed to obtain drive information ' + usb_disk)
class Base:
def run_dd(self, input, output, bs, count):
cmd = [self.dd_exe, 'if='+input, 'of='+output,
'bs=%d' % bs, 'count=%d'%count]
self.dd_add_args(cmd, input, output, bs, count)
if subprocess.call(cmd) != 0:
log('Failed to execute [%s]' % str(cmd))
else:
log("%s succeeded." % str(cmd))
class Windows(Base):
def __init__(self):
self.dd_exe = resource_path('data/tools/dd/dd.exe')
def dd_add_args(self, cmd_vec, input, output, bs, count):
pass
def physical_disk(self, usb_disk):
return r'\\.\physicaldrive%d' % get_physical_disk_number(usb_disk)
def mbusb_log_file(self):
return os.path.join(os.getcwd(), 'multibootusb.log')
class Linux(Base):
def __init__(self):
self.dd_exe = 'dd'
def dd_add_args(self, cmd_vec, input, output, bs, count):
cmd_vec.append('conv=notrunc')
def physical_disk(self, usb_disk):
return usb_disk.rstrip('0123456789')
def mbusb_log_file(self):
return '/var/log/multibootusb.log'
driverClass = {
'Windows' : Windows,
'Linux' : Linux,
}.get(platform.system(), None)
if driverClass is None:
raise Exception('Platform [%s] is not supported.' % platform.system())
osdriver = driverClass()
for func_name in [
'run_dd',
'physical_disk',
'mbusb_log_file',
]:
globals()[func_name] = getattr(osdriver, func_name)
logging.root.setLevel(logging.DEBUG)
fmt = '%(asctime)s.%(msecs)03d %(name)s %(levelname)s %(message)s'
datefmt = '%H:%M:%S'
the_handler = logging.handlers.RotatingFileHandler(
osdriver.mbusb_log_file(), 'a', 1024*1024, 5)
the_handler.setFormatter(logging.Formatter(fmt, datefmt))
logging.root.addHandler(the_handler)