/usr/lib/python2.7/dist-packages/setuptools/tests/environment.py is in python-setuptools 5.5.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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import zipfile
import sys
import tempfile
import unittest
import shutil
import stat
import unicodedata
from subprocess import Popen as _Popen, PIPE as _PIPE
def _extract(self, member, path=None, pwd=None):
"""for zipfile py2.5 borrowed from cpython"""
if not isinstance(member, zipfile.ZipInfo):
member = self.getinfo(member)
if path is None:
path = os.getcwd()
return _extract_member(self, member, path, pwd)
def _extract_from_zip(self, name, dest_path):
dest_file = open(dest_path, 'wb')
try:
dest_file.write(self.read(name))
finally:
dest_file.close()
def _extract_member(self, member, targetpath, pwd):
"""for zipfile py2.5 borrowed from cpython"""
# build the destination pathname, replacing
# forward slashes to platform specific separators.
# Strip trailing path separator, unless it represents the root.
if (targetpath[-1:] in (os.path.sep, os.path.altsep)
and len(os.path.splitdrive(targetpath)[1]) > 1):
targetpath = targetpath[:-1]
# don't include leading "/" from file name if present
if member.filename[0] == '/':
targetpath = os.path.join(targetpath, member.filename[1:])
else:
targetpath = os.path.join(targetpath, member.filename)
targetpath = os.path.normpath(targetpath)
# Create all upper directories if necessary.
upperdirs = os.path.dirname(targetpath)
if upperdirs and not os.path.exists(upperdirs):
os.makedirs(upperdirs)
if member.filename[-1] == '/':
if not os.path.isdir(targetpath):
os.mkdir(targetpath)
return targetpath
_extract_from_zip(self, member.filename, targetpath)
return targetpath
def _remove_dir(target):
#on windows this seems to a problem
for dir_path, dirs, files in os.walk(target):
os.chmod(dir_path, stat.S_IWRITE)
for filename in files:
os.chmod(os.path.join(dir_path, filename), stat.S_IWRITE)
shutil.rmtree(target)
class ZippedEnvironment(unittest.TestCase):
datafile = None
dataname = None
old_cwd = None
def setUp(self):
if self.datafile is None or self.dataname is None:
return
if not os.path.isfile(self.datafile):
self.old_cwd = None
return
self.old_cwd = os.getcwd()
self.temp_dir = tempfile.mkdtemp()
zip_file, source, target = [None, None, None]
try:
zip_file = zipfile.ZipFile(self.datafile)
for files in zip_file.namelist():
_extract(zip_file, files, self.temp_dir)
finally:
if zip_file:
zip_file.close()
del zip_file
os.chdir(os.path.join(self.temp_dir, self.dataname))
def tearDown(self):
#Assume setUp was never completed
if self.dataname is None or self.datafile is None:
return
try:
if self.old_cwd:
os.chdir(self.old_cwd)
_remove_dir(self.temp_dir)
except OSError:
#sigh?
pass
def _which_dirs(cmd):
result = set()
for path in os.environ.get('PATH', '').split(os.pathsep):
filename = os.path.join(path, cmd)
if os.access(filename, os.X_OK):
result.add(path)
return result
def run_setup_py(cmd, pypath=None, path=None,
data_stream=0, env=None):
"""
Execution command for tests, separate from those used by the
code directly to prevent accidental behavior issues
"""
if env is None:
env = dict()
for envname in os.environ:
env[envname] = os.environ[envname]
#override the python path if needed
if pypath is not None:
env["PYTHONPATH"] = pypath
#overide the execution path if needed
if path is not None:
env["PATH"] = path
if not env.get("PATH", ""):
env["PATH"] = _which_dirs("tar").union(_which_dirs("gzip"))
env["PATH"] = os.pathsep.join(env["PATH"])
cmd = [sys.executable, "setup.py"] + list(cmd)
#regarding the shell argument, see: http://bugs.python.org/issue8557
try:
proc = _Popen(cmd, stdout=_PIPE, stderr=_PIPE,
shell=(sys.platform == 'win32'), env=env)
data = proc.communicate()[data_stream]
except OSError:
return 1, ''
#decode the console string if needed
if hasattr(data, "decode"):
data = data.decode() # should use the preffered encoding
data = unicodedata.normalize('NFC', data)
#communciate calls wait()
return proc.returncode, data
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