mirror of https://github.com/deadc0de6/catcli
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
93 lines
2.3 KiB
Python
93 lines
2.3 KiB
Python
"""
|
|
author: deadc0de6 (https://github.com/deadc0de6)
|
|
Copyright (c) 2017, deadc0de6
|
|
|
|
helpers
|
|
"""
|
|
|
|
import os
|
|
import hashlib
|
|
import tempfile
|
|
import subprocess
|
|
import datetime
|
|
import string
|
|
|
|
# local imports
|
|
from catcli.exceptions import CatcliException
|
|
|
|
|
|
WILD = '*'
|
|
|
|
|
|
def md5sum(path: str) -> str:
|
|
"""
|
|
calculate md5 sum of a file
|
|
may raise exception
|
|
"""
|
|
rpath = os.path.realpath(path)
|
|
if not os.path.exists(rpath):
|
|
raise CatcliException(f'md5sum - file does not exist: {rpath}')
|
|
try:
|
|
with open(rpath, mode='rb') as file:
|
|
hashv = hashlib.md5()
|
|
while True:
|
|
buf = file.read(4096)
|
|
if not buf:
|
|
break
|
|
hashv.update(buf)
|
|
return hashv.hexdigest()
|
|
except PermissionError:
|
|
pass
|
|
except OSError as exc:
|
|
raise CatcliException(f'md5sum error: {exc}') from exc
|
|
return ''
|
|
|
|
|
|
def size_to_str(size: float,
|
|
raw: bool = True) -> str:
|
|
"""convert size to string, optionally human readable"""
|
|
div = 1024.
|
|
suf = ['B', 'K', 'M', 'G', 'T', 'P']
|
|
if raw or size < div:
|
|
return f'{size}'
|
|
for i in suf:
|
|
if size < div:
|
|
return f'{size:.1f}{i}'
|
|
size = size / div
|
|
sufix = suf[-1]
|
|
return f'{size:.1f}{sufix}'
|
|
|
|
|
|
def epoch_to_str(epoch: float) -> str:
|
|
"""convert epoch to string"""
|
|
if not epoch:
|
|
return ''
|
|
fmt = '%Y-%m-%d %H:%M:%S'
|
|
timestamp = datetime.datetime.fromtimestamp(epoch)
|
|
return timestamp.strftime(fmt)
|
|
|
|
|
|
def ask(question: str) -> bool:
|
|
"""ask the user what to do"""
|
|
resp = input(f'{question} [y|N] ? ')
|
|
return resp.lower() == 'y'
|
|
|
|
|
|
def edit(data: str) -> str:
|
|
"""edit the information with the default EDITOR"""
|
|
content = fix_badchars(data)
|
|
editor = os.environ.get('EDITOR', 'vim')
|
|
with tempfile.NamedTemporaryFile(prefix='catcli', suffix='.tmp') as file:
|
|
file.write(content.encode('utf-8'))
|
|
file.flush()
|
|
subprocess.call([editor, file.get_name()])
|
|
file.seek(0)
|
|
new = file.read()
|
|
return new.decode('utf-8')
|
|
|
|
|
|
def fix_badchars(data: str) -> str:
|
|
"""fix none utf-8 chars in string"""
|
|
data = "".join(x for x in data if x in string.printable)
|
|
return data.encode("utf-8", "ignore").decode("utf-8")
|