Na}{

File Content: `evr_utils.py`

# coding=utf-8
#
# Copyright © Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2019 All Rights Reserved
#
# Licensed under CLOUD LINUX LICENSE AGREEMENT
# http://cloudlinux.com/docs/LICENSE.TXT
#
# author: Ruslan Pisarev  <rpisarev@cloudlinux.com>
# created: 25.07.13  12:36
# description: alternatives,rpm_compare: hash-string for coding EVR

# Examples of serialization you can look at tests/test_evr_utils.py


from __future__ import absolute_import

from typing import Union, List, AnyStr, Tuple, Optional

__all__ = [
    'serialize_evr'
]


def encode_int_to_real_numbers_segment(intgr: Union[int]) -> List[Union[int]]:
    """
    Encode int in real-numbers segment.
    See http://en.wikipedia.org/wiki/Arithmetic_coding.

    @param intgr:       int for coding in Float an segment [seg_begin, seg_end]
    @return:            list encoding segment
    """
    lst = []
    number = intgr
    while number > 0:
        number, remainder = divmod(number, 256)
        lst.append(remainder)
    lst.append(128 + len(lst))
    lst.reverse()
    return lst


def evr_to_float(rpm_data: List[Union[int, AnyStr]]) -> AnyStr:
    """
    Encode List of parts of Version or Epoch or Release in real-numbers segment.
    See http://en.wikipedia.org/wiki/Arithmetic_coding.

    @param rpm_data:    list to convert in double
    @return:            Converted string
    """
    evr = []
    for elem in rpm_data:
        if isinstance(elem, int):
            evr.extend(encode_int_to_real_numbers_segment(elem))
        elif isinstance(elem, str) and elem.isdigit():
            evr.extend(encode_int_to_real_numbers_segment(int(elem)))
        elif isinstance(elem, str):
            evr.extend(ord(ch) for ch in elem)
        else:
            raise NameError('ThisStrange: ' + elem)
        evr.append(0)
    return "".join(["%02x" % n for n in evr])


def serialize_evr(evr: Union[List[AnyStr], Tuple[AnyStr], AnyStr]) -> AnyStr:
    """
    Converts epoch, version and release of package to unique string.

    Ex:
    ['1', '2.4.4', '34'] -> '810100008102008104008104000081220000'
    ['0', '2.2.3', '76.el5_9.cloudlinux'] -> 80000081020081020081030000814c00656c00810500810900636c6f75646c696e75780000

    @param evr:         List from epoch, version and release
    @return:            str for given list
    """
    ret = ''
    if not isinstance(evr, (list, tuple)):
        evr = [evr]
    for i in evr:
        ret += evr_to_float(split_segments(i)) + '00'
    return ret


def split_segments(string: Optional[AnyStr]) -> List[AnyStr]:
    """
    Split str of epoch or version or release to numbers and strings.

    Ex:
    '76.el5_9.cloudlinux.2' -> ['76', 'el', '5', '9', 'cloudlinux', '2']

    @param string:           str of epoch or version or release
    @return:            List strings and numbers from EVR
    """

    if string is None:
        return []
    prev_symb = string[0]
    begin_index = 0
    segments = []
    for i, el in enumerate(string):
        # Continue loop if a type of current symbol is equal to a type of previous symbol
        # Ex: In string 'el7' symbols 'e' and 'l' have the same type (alphabetic) and
        # we should take the part of string 'el' as whole
        if str(prev_symb + el).isdigit() or str(prev_symb + el).isalpha():
            prev_symb = el
            continue
        # skip segement if it is't alpha/numeric
        if string[begin_index:i].isalnum():
            segments.append(string[begin_index:i])
        begin_index = i
        prev_symb = string[begin_index]
    # skip end of a string if it isn't alpha/numeric
    if string[begin_index:].isalnum():
        segments.append(string[begin_index:])
    return segments

Name	Size	Permission
__pycache__	---	0755
cpapi	---	0755
lib	---	0755
public_hooks	---	0755
__init__.py	1515 bytes	0644
clcagefs.py	10019 bytes	0644
clcaptain.py	1986 bytes	0644
clconfig.py	1766 bytes	0644
clconfpars.py	7101 bytes	0644
clcustomscript.py	1275 bytes	0644
cldebug.py	1014 bytes	0644
clemail.py	1802 bytes	0644
clexception.py	1275 bytes	0644
clfunc.py	6258 bytes	0644
clhook.py	3950 bytes	0644
cllog.py	1458 bytes	0644
cloutput.py	588 bytes	0644
clproc.py	4206 bytes	0644
clpwd.py	7754 bytes	0644
clquota.py	1404 bytes	0644
clsec.py	766 bytes	0644
clwpos_lib.py	7718 bytes	0644
const.py	2215 bytes	0644
evr_utils.py	3703 bytes	0644
group_info_reader.py	5612 bytes	0644
mail_helper.py	3926 bytes	0644
php_conf_reader.py	10205 bytes	0644
sysctl.py	7891 bytes	0644
ui_config.py	3374 bytes	0644
utils.py	28252 bytes	0644
utils_cmd.py	2753 bytes	0644

File Content: evr_utils.py

File Content: `evr_utils.py`