53 lines
1.5 KiB
Python
Executable File
53 lines
1.5 KiB
Python
Executable File
# SPDX-FileCopyrightText: 2023 Max Mehl <https://mehl.mx>
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#
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# SPDX-License-Identifier: Apache-2.0
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"""Misc helper functions for seafile mirror"""
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import logging
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import socket
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import sys
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def get_lock(process_name):
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"""Get the lock for this program to avoid double-execution"""
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# Without holding a reference to our socket somewhere it gets garbage
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# collected when the function exits
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# pylint: disable=protected-access
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get_lock._lock_socket = socket.socket(socket.AF_UNIX, socket.SOCK_DGRAM)
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try:
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# The null byte (\0) means the socket is created
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# in the abstract namespace instead of being created
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# on the file system itself.
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# Works only in Linux
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# pylint: disable=protected-access
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get_lock._lock_socket.bind("\0" + process_name)
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except socket.error:
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logging.critical("This script is already executed in another instance. Abort.")
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sys.exit(1)
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def findstring(text, string):
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"""Check if a certain string exists in an output"""
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if text.find(string) >= 0:
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return True
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return False
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def countlines(string: str) -> int:
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"""Count number of lines in a variable"""
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return len(string.splitlines())
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def convert_bytes(size):
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"""Convert bytes to KB, MB etc depending on size"""
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power = 1024
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level = 0
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labels = {0 : 'B', 1: 'KB', 2: 'MB', 3: 'GB', 4: 'TB'}
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while size > power:
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size /= power
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level += 1
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return f"{round(size, 2)} {labels[level]}"
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