Initialize dev environment:
----------------------
1) Create virtualenv
   $ virtualenv -p /usr/bin/python3.6 virtualenv
   $ source virtualenv/bin/activate

2) Install packages
   $ pip install -e .


Load dev environment:
-----------------------
Load virtualenv:
$ source virtualenv/bin/activate


Upload to pip:
-----------------------
$ rm -rf dist
$ python setup.py sdist
$ python setup.py bdist_wheel
$ twine upload dist/*


Creating new fixtures:
-----------------------
1. Create plaintext tar fixture
$ cryfs-e2etest-create-data-tar /path/to/datadir myfixture_data.tar
2. Create ciphertext tar fixture
$ cryfs-e2etest-create-encoded-tar myfixture_data.tar myfixture_cryfs_encoded.tar --cryfs-executable=/usr/local/bin/cryfs