post_install() {
  set -e
  cd /usr/share/checkov
  python -m virtualenv venv
  source venv/bin/activate &&
    pip install --isolated --root=/usr/share/checkov --prefix=venv checkov
}

post_upgrade() {
  set -e
  cd /usr/share/checkov
  python -m virtualenv venv
  source venv/bin/activate &&
    pip install --isolated --root=/usr/share/checkov --prefix=venv -U \
    checkov
}

post_remove() {
  rm -rf /usr/share/checkov
}

