FM / apt

/usr/lib/python3/dist-packages/apt

Name	Size	Mode	Actions
progress/	-	0755	rm
__pycache__/	-	0755	rm
auth.py	10599	0644	edit dl rm
cache.py	37612	0644	edit dl rm
cdrom.py	3445	0644	edit dl rm
debfile.py	34405	0644	edit dl rm
package.py	56333	0644	edit dl rm
py.typed	0	0644	edit dl rm
utils.py	3554	0644	edit dl rm
__init__.py	1384	0644	edit dl rm

Edit: /usr/lib/python3/dist-packages/apt/utils.py (3554B)

# Copyright (C) 2009 Canonical
#
# Authors:
#  Michael Vogt
#
#  This program is free software; you can redistribute it and/or
#  modify it under the terms of the GNU General Public License as
#  published by the Free Software Foundation; either version 2 of the
#  License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
from __future__ import print_function

import datetime
import os

from typing import Optional, Tuple

import apt
import apt_pkg

def get_maintenance_end_date(release_date, m_months):
    # type: (datetime.datetime, int) -> Tuple[int, int]
    """
    get the (year, month) tuple when the maintenance for the distribution
    ends. Needs the data of the release and the number of months that
    its is supported as input
    """
    # calc end date
    years = m_months // 12
    months = m_months % 12
    support_end_year = (release_date.year + years +
                        (release_date.month + months) // 12)
    support_end_month = (release_date.month + months) % 12
    # special case: this happens when e.g. doing 2010-06 + 18 months
    if support_end_month == 0:
        support_end_month = 12
        support_end_year -= 1
    return (support_end_year, support_end_month)

def get_release_date_from_release_file(path):
    # type: (str) -> Optional[int]
    """
    return the release date as time_t for the given release file
    """
    if not path or not os.path.exists(path):
        return None

with os.fdopen(apt_pkg.open_maybe_clear_signed_file(path)) as data:
        tag = apt_pkg.TagFile(data)
        section = next(tag)
        if "Date" not in section:
            return None
        date = section["Date"]
        return apt_pkg.str_to_time(date)

def get_release_filename_for_pkg(cache, pkgname, label, release):
    # type: (apt.Cache, str, str, str) -> Optional[str]
    " get the release file that provides this pkg "
    if pkgname not in cache:
        return None
    pkg = cache[pkgname]
    ver = None
    # look for the version that comes from the repos with
    # the given label and origin
    for aver in pkg._pkg.version_list:
        if aver is None or aver.file_list is None:
            continue
        for ver_file, _index in aver.file_list:
            # print verFile
            if (ver_file.origin == label and
                    ver_file.label == label and
                    ver_file.archive == release):
                ver = aver
    if not ver:
        return None
    indexfile = cache._list.find_index(ver.file_list[0][0])
    for metaindex in cache._list.list:
        for m in metaindex.index_files:
            if (indexfile and
                    indexfile.describe == m.describe and
                    indexfile.is_trusted):
                dirname = apt_pkg.config.find_dir("Dir::State::lists")
                for relfile in ['InRelease', 'Release']:
                    name = (apt_pkg.uri_to_filename(metaindex.uri) +
                            "dists_%s_%s" % (metaindex.dist, relfile))
                    if os.path.exists(dirname + name):
                        return dirname + name
    return None

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