aur-packages/deoplete/deoplete.install

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

update_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. "
}

post_install() {
  update_helptag
  echo ""
  echo "    Note: Python3 must be enabled before updating remote plugins
  If Deoplete was installed prior to Python support being added to Neovim, :UpdateRemotePlugins
  should be executed manually in order to enable auto-completion."

  echo ""
  echo "    you might need to add the following to your init.vim/vimrc:
  \"let g:deoplete#enable_at_startup = 1\""
  echo ""
  update_vim_help
}

post_upgrade() {
  update_helptag ${1}
  update_vim_help "$1"
}

post_remove() {
  update_helptag

  echo ""
  echo "    you might need to remove the following to your init.vim/vimrc:
  \"let g:deoplete#enable_at_startup = 1\""
  echo ""
  update_vim_help
}