update_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_helptag
    echo "To use it for thesaurus query:"
    echo "    In normal or visual mode: $(tput bold)<leader>cs$(tput sgr0)"
    echo "    in insert mode with cursor at end of target word: $(tput bold)<c-x><c-u>$(tput sgr0)"
}

post_upgrade() {
    update_helptag ${1}
}

post_remove() {
    update_helptag
}