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# Copyright 2019 The Bazel Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import datetime
import filecmp
import unittest
import zipfile
from bazel_tools.tools.python.runfiles import runfiles
# Unix dir bit and Windows dir bit. Magic from zip spec
UNIX_DIR_BIT = 0o40000
MSDOS_DIR_BIT = 0x10
UNIX_RWX_BITS = 0o777
UNIX_RX_BITS = 0o555
# The ZIP epoch date: (1980, 1, 1, 0, 0, 0)
_ZIP_EPOCH_DT = datetime.datetime(1980, 1, 1, 0, 0, 0, tzinfo=datetime.timezone.utc)
_ZIP_EPOCH_S = int(_ZIP_EPOCH_DT.timestamp())
def seconds_to_ziptime(s):
dt = datetime.datetime.utcfromtimestamp(s)
return (dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second)
class ZipTest(unittest.TestCase):
def setUp(self):
super(ZipTest, self).setUp()
self.data_files = runfiles.Create()
def get_test_zip(self, zip_file):
"""Get the file path to a generated zip in the runfiles."""
return self.data_files.Rlocation(
"rules_pkg/tests/zip/" + zip_file
)
class ZipContentsTestBase(ZipTest):
"""Use zipfile to check the contents of some generated zip files."""
def assertZipFileContent(self, zip_file, content):
"""Assert that zip_file contains the entries described by content.
Args:
zip_file: the test-package-relative path to a zip file to test.
content: an array of dictionaries containing a filename and crc key,
and optionally a timestamp key.
"""
with zipfile.ZipFile(self.get_test_zip(zip_file)) as f:
infos = f.infolist()
self.assertEqual(len(infos), len(content))
for info, expected in zip(infos, content):
self.assertEqual(info.filename, expected["filename"])
if "crc" in expected:
self.assertEqual(info.CRC, expected["crc"])
ts = seconds_to_ziptime(expected.get("timestamp", _ZIP_EPOCH_S))
self.assertEqual(info.date_time, ts)
if "isdir" in expected:
expect_dir_bits = UNIX_DIR_BIT << 16 | MSDOS_DIR_BIT
self.assertEqual(oct(info.external_attr & expect_dir_bits),
oct(expect_dir_bits))
self.assertEqual(oct((info.external_attr >> 16) & UNIX_RWX_BITS),
oct(expected.get("attr", 0o755)))
elif "isexe" in expected:
got_mode = (info.external_attr >> 16) & UNIX_RX_BITS
self.assertEqual(oct(got_mode), oct(UNIX_RX_BITS))
elif "size" in expected:
self.assertEqual(info.compress_size, expected["size"])
else:
if "attr" in expected:
attr = expected.get("attr")
if "attr_mask" in expected:
attr &= expected.get("attr_mask")
else:
# I would argue this is a dumb choice, but it matches the
# legacy rule implementation.
attr = 0o555
self.assertEqual(oct((info.external_attr >> 16) & UNIX_RWX_BITS),
oct(attr),
msg = info.filename)
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