[Feature request] Add extra script to check updates

For some AUR maintainers could be really useful add custom scripts to check new releases within the same plasmoid, to know when they should upgrade their AUR packages.

Example scenario: a script to check new Google Chrome Beta releases:

#!/bin/bash -eu
INSTALLED_VERSION=$(pacman -Qi google-chrome-beta | awk '/^Version/ {print $3}' | sed 's/-/\n/g' | head -1)

LATEST_BETA=$(
  curl -sL https://dl.google.com/linux/chrome/rpm/stable/x86_64/repodata/other.xml.gz | \
  gzip -df | tr ' ' '\n' | grep -e name= -e ver= | cut -d '"' -f2 | sed 'N;s/\n/ /' | \
  grep google-chrome-beta | awk '{print $2}'
)

if [[ "$INSTALLED_VERSION" != "$LATEST_BETA" ]]
then
  echo "new google-chrome-beta available $LATEST_BETA"
fi

To store this scripts I think something like nnn where you can install your custom scripts in $XDG_CONFIG_HOME/nnn/plugins and maybe the user can switch ON/OFF the google-chrome-beta.sh in the Arch updater settings

Obviously this feature could be used for any kind of notification that the user wants to receive in this plasmoid.

I-Dream-in-Code / kde-arch-update-plasmoid

[Feature request] Add extra script to check updates #43