post_install() {
  echo "
    >>> To use vim-plug, please check the file /usr/share/vim-plug/vimrc.sample
    >>> and update your ~/.vimrc file, accordingly
  "
}
post_upgrade() {
  post_install $1
}

post_remove() {
  echo "
    >>> Please remember to remove plugins from your ~/.vimrc file
    >>> and from your ~/.vim directory!
  "
}