teamviewer: fixed update script to work in a similar way to vscode

#!/usr/bin/env nix-shell

#! nix-shell -i bash -p nix-update curl

#!nix-shell -i bash -p bash curl gnugrep jq nix nix-prefetch nix-prefetch-scripts common-updater-scripts

TEAMVIEWER_VER=$(curl -s https://www.teamviewer.com/en-us/download/linux/ | grep -oP 'Current version: <span data-dl-version-label>\K[0-9]+\.[0-9]+\.[0-9]+')

set -euo pipefail

nix-update --version "$TEAMVIEWER_VER" --system x86_64-linux teamviewer

nix-update --version "skip" --system aarch64-linux teamviewer

current_version=$(nix eval --raw -f . teamviewer.version)

latest_version=$(curl -s https://www.teamviewer.com/en-us/download/portal/linux/ | grep -oP 'Current version: <span data-dl-version-label>\K[0-9]+\.[0-9]+\.[0-9]+')

echo "current version: $current_version"

echo "latest version:  $latest_version"

if [[ "$latest_version" == "$current_version" ]]; then

  echo "package is up-to-date"

  exit 0

fi

update-source-version teamviewer "$latest_version"