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import os 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