def sevenzip(interactive: bool, compress_type: str, inputfilepath: str, outputfilepath: str=None):
if string_is_empty(inputfilepath):
raise Exception("No input file path provided")
if string_is_empty(compress_type):
if interactive is True:
compress_type = strip(
input(
"Type the name of the compression algorithm (7z or zip)\n"
)
).lower()
else:
compress_type = "zip"
if string_is_empty(compress_type):
raise Exception("No compression algorithm chosen")
if compress_type != "zip" and compress_type != "7z":
raise Exception("Wrong compression algorithm (use 7z or zip)")
if string_is_empty(outputfilepath):
if interactive is True:
outputfilepath = strip(input("Type the path of the compressed image file\n"))
else:
outputfilepath = inputfilepath + "." + compress_type
if string_is_empty(outputfilepath):
raise Exception("File path empty")
cancelled = False
p = Path(outputfilepath)
if p.exists():
yn = singlecharinput(
"The file '{}' exists. Do you want to delete it?".format(
outputfilepath
), ConsoleColors.WARNING
)
if yn == "n":
cancelled = True
print(ConsoleColor.colorline("Cancelling compress process", ConsoleColors.OKBLUE))
else:
print(ConsoleColor.colorline("Deleting '{}'".format(outputfilepath), ConsoleColors.FAIL))
if Path(outputfilepath).exists():
print(ConsoleColor.colorline(
"Could not delete '{}'".format(
outputfilepath
), ConsoleColors.FAIL)
)
cancelled = True
if cancelled is False:
sz = local["7z"]
sz.run(["a", str(p.absolute()), inputfilepath])
def parse_device_sizeinfo(line: str) -> Dict:
if string_is_empty(line):
return None
p = line.find("bytes")
c = find_char_backwards(line, ",", len(line) - p)
fsize = int(strip(line[(p - c):p]))
return {"size_b": fsize, "size_h": bytes_to_unit(fsize, True)}
def fdisk_size_to_bytesize(fdisksize: str) -> int:
sfdisksize = strip(fdisksize)
ffdisksize = None
t = -1
if sfdisksize.find("T") > -1:
t = 0
elif sfdisksize.find("G") > -1:
t = 1
elif sfdisksize.find("M") > -1:
t = 2
if t > -1:
sfdisksize = sfdisksize[0:len(sfdisksize) - 1].replace(",", ".")
ffdisksize = float(sfdisksize)
if t == 0:
return int(ffdisksize * FileSizes.TB_BYTE_SIZE.value)
elif t == 1:
return int(ffdisksize * FileSizes.GB_BYTE_SIZE.value)
elif t == 2:
return int(ffdisksize * FileSizes.MB_BYTE_SIZE.value)
else:
return int(sfdisksize)
def set_device(self, devicepath: str = None) -> None:
device_str = None
if not string_is_empty(devicepath):
self._devicepath = Path(devicepath)
else:
device_str = strip(
input(
"Type the path of device (e.g. /dev/sde) or partition (e.g. /dev/sde1) you want to backup:\n"
))
if string_is_empty(device_str):
raise Exception("Device-String is empty")
devok = False
for dev in self._devices:
if string_equal_utf8(dev["dev"], device_str, False):
devok = True
if devok is False:
if "partitions" in dev:
for devpart in dev["partitions"]:
if devpart["dev"] == device_str:
devok = True
break
if devok is True:
break
if not devok:
raise Exception("Device or partition '{}' not found".format(
self._device_str))
else:
self._devicepath = Path(device_str)
def parse_dd_info(line):
bytestrpos = line.find(" ")
bytestr = strip(line[0:bytestrpos])
byteint = int(bytestr)
brackpos = line.find(")")
tmstartpos = line.find(",", brackpos)
nextcommapos = line.find(",", tmstartpos + 1)
charbeforecomma = line[nextcommapos - 1:nextcommapos]
if charbeforecomma == "s" or charbeforecomma == "m" or charbeforecomma == "h":
tm = strip(line[tmstartpos + 1:nextcommapos])
else:
nextnextcommapos = line.find(",", nextcommapos + 1)
tm = strip(line[nextcommapos - 2:nextnextcommapos])
tm_comma_pos = tm.find(",")
is_secs = "s" in tm
is_mins = "m" in tm
is_hours = "h" in tm
is_commatime = False
if is_mins or is_hours:
if tm_comma_pos > -1:
tm_1 = tm[0:tm_comma_pos].strip()
tm_2 = float("0." + tm[tm_comma_pos +
1:].strip("m" if is_mins else "h").strip())
if is_mins:
factor = 60
else:
factor = 3600
tm_1 = int(tm_1) * factor
tm_2 = int(tm_2 * factor)
tm = tm_1 + tm_2
is_commatime = True
if is_commatime is False:
if is_secs:
if tm_comma_pos > -1:
tm = int(tm[0:tm_comma_pos])
else:
tm = int(tm.strip("s").strip())
elif is_mins:
tm = int(tm.strip("m").strip()) * 60
elif is_hours:
tm = int(tm.strip("m").strip()) * 60
return {"size_b": byteint, "time": int(tm), "time_h": humantime(tm)}
def set_image_path(self, image_path: str = None) -> bool:
is_dir_msg = "Image path '{}' is not accepted, as it is a directory!"
is_dir = False
if not string_is_empty(image_path):
if is_directory_path(image_path):
is_dir = True
else:
self._imagepath = Path(image_path)
return True
else:
imagepathok = False
imagefile = None
try:
while imagepathok is False:
fpi = input(
"Type the filepath of the image you want to create (empty to cancel image creation):\n"
)
imagefilepath = strip(fpi)
if string_is_empty(imagefilepath):
raise Exception("_cic_")
if is_directory_path(imagefilepath):
is_dir = True
else:
imagefile = Path(imagefilepath)
if imagefile.is_dir():
is_dir = True
else:
imagepathok = True
except Exception as e:
if str(e) == "_cic_":
return False
finally:
if imagepathok is True:
self._imagepath = imagefile
return True
if is_dir is True:
raise Exception(
"Image path '{}' points to a directory. Needs to be a file!")
def start_dd(self,
interactive: bool = False,
ddbatchsize: str = None,
finished_handler: Callable = None) -> int:
retcode = None
devpath = str(self._devicepath.absolute())
imagepath = str(self._imagepath.absolute())
param_if = "if={}".format(devpath.replace(" ", "\\ "))
param_of = "of={}".format(imagepath.replace(" ", "\\ "))
param_status = "status=progress"
# todo: make configurable batch size
if ddbatchsize is not None:
param_bs = "bs={}".format(ddbatchsize)
else:
param_bs = "bs=1M"
if interactive is True:
yn = "y"
else:
print(
ConsoleColor.colorline(
"Will execute \"{}\"".format("sudo dd {} {} {} {}".format(
param_if, param_of, param_status, param_bs)),
ConsoleColors.OKGREEN))
yn = singlecharinput(
"Confirm the creation of image '{}' from device '{}' (y/n)!".
format(imagepath, devpath), ConsoleColors.OKGREEN)
if yn == "n":
if interactive is True:
print(
ConsoleColor.colorline(
"Cancelled image creation on your wish",
ConsoleColors.OKBLUE))
return -1
elif yn == "y":
sudo = local["sudo"]
dd = local["dd"]
starttime = datetime.now()
p = sudo[dd[param_if, param_of, param_status,
param_bs]].popen(stderr=PIPE)
line = ''
# retcode = 0
# Intention is not to get the first "\r" from dd-output
# sleep(1)
if interactive is True:
print()
target_image_sizehuman = self.get_target_image_sizehuman()
target_image_sizebytes = self.get_target_image_sizebytes()
if interactive is False:
p._proc.communicate()
else:
while True:
retcode = p.poll()
if retcode is None:
out = p.stderr.read(1).decode("utf-8",
errors="replace")
if out == '':
break
else:
if out == '\r':
line = strip(line)
if not string_is_empty(line):
dd_info = parse_dd_info(line)
currenttime = datetime.now()
deltatime = currenttime - starttime
print(
"{0:10}{1:4}{2:9}{3:3}{4:10}{5:4}{6:8}{7:3}{8}"
.format(
bytes_to_unit(
dd_info["size_b"], True, True,
False), "of",
target_image_sizehuman, "|",
dd_info["time_h"], "of",
humantime(
predict_job_time(
dd_info["time"],
target_image_sizebytes,
dd_info["size_b"])), "|",
"Total time: {}".format(
humantime(deltatime.
total_seconds()))),
end="\r")
line = ''
else:
line = line + out
else:
break
retcode = retcode if retcode is not None else p._proc.returncode
if interactive is True:
print()
currenttime = datetime.now()
deltatime = currenttime - starttime
print(
ConsoleColor.colorline(
"Total time: {}".format(
humantime(deltatime.total_seconds())),
ConsoleColors.OKGREEN))
st = stat(imagepath)
print(
ConsoleColor.colorline(
"Final image size: {}".format(
bytes_to_unit(st.st_size, True, True, False)),
ConsoleColors.OKGREEN))
if retcode == 0:
print(
ConsoleColor.colorline("Successfully created image!",
ConsoleColors.OKGREEN))
else:
print(
ConsoleColor.colorline(
"No Result from dd (image might be ok)!",
ConsoleColors.WARNING))
finished_handler(retcode, imagepath)
return retcode
def is_directory_path(path: str): if not string_is_empty(path): c = len(path) return strip(path)[c-1:c] == sep return False
