import os
import io
import contextlib
import tempfile
import shutil
import errno
import zipfile
@contextlib.contextmanager
def tempdir():
"""Create a temporary directory in a context manager."""
td = tempfile.mkdtemp()
try:
yield td
finally:
shutil.rmtree(td)
def mkdir_p(*args, **kwargs):
"""Like `mkdir`, but does not raise an exception if the
directory already exists.
"""
try:
return os.mkdir(*args, **kwargs)
except OSError as exc:
if exc.errno != errno.EEXIST:
raise
def dir_to_zipfile(root):
"""Construct an in-memory zip file for a directory."""
buffer = io.BytesIO()
zip_file = zipfile.ZipFile(buffer, 'w')
for root, dirs, files in os.walk(root):
for path in dirs:
fs_path = os.path.join(root, path)
rel_path = os.path.relpath(fs_path, root)
zip_file.writestr(rel_path + '/', '')
for path in files:
fs_path = os.path.join(root, path)
rel_path = os.path.relpath(fs_path, root)
zip_file.write(fs_path, rel_path)
return zip_file
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