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import os
import zipfile
import sys
import tempfile
import unittest
import shutil
import stat
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 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):
try:
if self.old_cwd:
os.chdir(self.old_cwd)
_remove_dir(self.temp_dir)
except OSError:
#sigh?
pass
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