mirror of https://github.com/deadc0de6/catcli
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79 lines
1.9 KiB
Python
79 lines
1.9 KiB
Python
"""
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author: deadc0de6 (https://github.com/deadc0de6)
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Copyright (c) 2017, deadc0de6
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helpers
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"""
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import os
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import hashlib
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import tempfile
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import subprocess
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import datetime
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# local imports
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from catcli.logger import Logger
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def md5sum(path):
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'''calculate md5 sum of a file'''
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p = os.path.realpath(path)
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if not os.path.exists(p):
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Logger.err('\nmd5sum - file does not exist: {}'.format(p))
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return None
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try:
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with open(p, mode='rb') as f:
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d = hashlib.md5()
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while True:
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buf = f.read(4096)
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if not buf:
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break
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d.update(buf)
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return d.hexdigest()
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except PermissionError:
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pass
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except OSError as e:
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Logger.err('md5sum error: {}'.format(e))
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return None
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def size_to_str(size, raw=True):
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'''convert size to string, optionally human readable'''
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div = 1024.
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suf = ['B', 'K', 'M', 'G', 'T', 'P']
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if raw or size < div:
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return '{}'.format(size)
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for i in suf:
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if size < div:
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return '{:.1f}{}'.format(size, i)
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size = size / div
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return '{:.1f}{}'.format(size, suf[-1])
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def epoch_to_str(epoch):
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'''convert epoch to string'''
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if not epoch:
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return ''
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fmt = '%Y-%m-%d %H:%M:%S'
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t = datetime.datetime.fromtimestamp(float(epoch))
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return t.strftime(fmt)
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def ask(question):
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'''ask the user what to do'''
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resp = input('{} [y|N] ? '.format(question))
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return resp.lower() == 'y'
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def edit(string):
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'''edit the information with the default EDITOR'''
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string = string.encode('utf-8')
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EDITOR = os.environ.get('EDITOR', 'vim')
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with tempfile.NamedTemporaryFile(prefix='catcli', suffix='.tmp') as f:
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f.write(string)
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f.flush()
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subprocess.call([EDITOR, f.name])
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f.seek(0)
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new = f.read()
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return new.decode('utf-8')
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