Initial upload

check-system-update

@@ -0,0 +1,48 @@
+#!/usr/bin/bash
+yay -Syua
+
+echo "==> Updating flatpaks..."
+flatpak update
+
+echo "==> Syncing database..."
+sudo pacman -Sy --noconfirm || exit 1
+
+function update_init_fail {
+    echo "==> Initialising system update failed." >&2
+    echo "==> Cleaning up..." >&2
+    sudo rm -rf /var/lib/system-update
+    exit 1
+}
+
+if pacman -Qu >&-; then
+    echo "==> System updates available."
+    echo "==> Downloading system updates..."
+    if [ ! -e /var/lib/system-update ]; then
+        sudo mkdir -p /var/lib/system-update || update_init_fail
+    fi
+    sudo pacman -Suw --noconfirm --cachedir /var/lib/system-update || update_init_fail
+    sudo ln -s /var/lib/system-update /system-update || update_init_fail
+    echo "==> System update scheduled for next reboot."
+else
+    echo "==> Up to date."
+    if [ -e /system-update ]; then
+        echo "==> There is another system update pending."
+        while true; do
+            read -n1 -p"==> Unschedule system update?    [Y/n]: " q
+            [ ! $q = "" ] && echo
+            case $q in
+                y|Y|"")
+                    sudo rm /system-update || {
+                        echo "==> Could not unschedule pending system update" >&2
+                        exit 1
+                    }
+                    echo "==> Unscheduled pending system update"
+                    break;;
+                n|N)
+                    break;;
+                *)
+                    continue;;
+            esac
+        done
+    fi
+fi