Add upd.sh

Script the automates most of the update process.

upd.sh

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+# Get new version info
+URL=$(curl -H 'X-Ubuntu-Series: 16' https://api.snapcraft.io/api/v1/snaps/details/termius-beta | jq '.download_url' -r | cut -d "_" -f2)
+VER=$(curl -H 'X-Ubuntu-Series: 16' https://api.snapcraft.io/api/v1/snaps/details/termius-beta | jq '.version' -r)
+
+# Update PKGBUILD
+sed -i "s/_[0-9]\+.snap/_$URL/g" PKGBUILD
+sed -i "s/pkgver=.*$/pkgver=$VER/g" PKGBUILD 
+
+# Calc new hash 
+updpkgsums
+
+# Build & install pkg
+makepkg -si
+
+# Update .SRCINFO
+makepkg --printsrcinfo > .SRCINFO
+
+# Git ops
+git add .SRCINFO PKGBUILD
+git commit -m "Update to $VER"
+
+# CLeanup
+rm -rf pkg/ src/ *.snap *.pkg.tar.zst
+
+printf "\nAll done!\nRemember to git push!\n"