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# -*- coding: utf-8 -*-
#
# diffoscope: in-depth comparison of files, archives, and directories
#
# Copyright © 2015 Jérémy Bobbio <lunar@debian.org>
# 2016-2017 Mattia Rizzolo <mattia@debian.org>
#
# diffoscope 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 3 of the License, or
# (at your option) any later version.
#
# diffoscope 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 diffoscope. If not, see <https://www.gnu.org/licenses/>.
import os
import re
import pytest
from diffoscope.comparators.binary import FilesystemFile
from diffoscope.comparators.utils.specialize import specialize
re_normalize_zeros = re.compile(
r'^(?P<prefix>[ \-\+])(?P<offset>[0-9a-f]+)(?=: )', re.MULTILINE,
)
def init_fixture(filename):
return pytest.fixture(
lambda: specialize(FilesystemFile(filename))
)
def data(filename):
return os.path.join(
os.path.dirname(os.path.dirname(__file__)),
'..',
'data',
filename,
)
def get_data(filename):
with open(data(filename), encoding='utf-8') as f:
return f.read()
def load_fixture(filename):
return init_fixture(data(filename))
def normalize_zeros(s):
# older xxd had one zero less. Make sure there are always 8.
def repl(x):
return '{}{:08x}'.format(x.group('prefix'), int(x.group('offset'), 16))
return re_normalize_zeros.sub(repl, s)
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