update_neovim_helptag() {
    echo -n "Updating neovim (nvim) help tags..."
    /usr/bin/nvim --noplugins -u NONE -U NONE \
      --cmd ":helptags /usr/share/nvim/runtime/doc" --cmd ":q" > /dev/null 2>&1
    echo "done. "
}

update_vim_helptag() {
    echo -n 'Updating vim help tags...'
    /usr/bin/vim --noplugins -u NONE -U NONE \
      --cmd ":helptags /usr/share/vim/vimfiles/doc" --cmd ":q" > /dev/null 2>&1
    echo 'done.'
}

post_install() {
    update_neovim_helptag
    update_vim_helptag
    echo ""
    echo "    see https://github.com/itchyny/lightline.vim for
      tips on setting $TERM and configuring init.vim/vimrc"
    echo ""
}

post_upgrade() {
    update_neovim_helptag
    update_vim_helptag
}

post_remove() {
    update_neovim_helptag
    update_vim_helptag
}

# vim:set ts=2 sw=2 et: