Adding GPG signing as recommended by man 8 pacman-key; SSH-agent improvements

AdminScripts/shadowarch-sync

@@ -9,4 +9,19 @@
 # 
 # Author: DarkFeather <darkfeather@aninix.net>
 
+seconds=10
+echo "This will sync your /etc files with the AniNIX defaults and add the AniNIX
+GPG key for pacman." 
+echo "Proceeding in $seconds seconds. Is this OK? [YES/no] " 
+timeout $seconds cat | read answer
+if [[ "${answer,,}" =~ ^n ]]; then
+    exit 0;
+fi
+
 rsync -avz /opt/aninix/ShadowArch/etc/ /etc/
+keyid=D9DC5933A1B0D4F7
+if ! gpg --homedir /etc/pacman.d/gnupg --list-key "${keyid}"; then
+    pacman-key --add /usr/share/pacman/keyrings/aninix.gpg
+    pacman-key --finger "${keyid}"
+    pacman-key --lsign-key "${keyid}"
+fi