Improve deploy script

deploy.sh

@@ -3,8 +3,25 @@
 DEPLOY_HOST=$1
 DEPLOY_ADDRESS=$2
 
+if [ -z $DEPLOY_HOST ]; then
+  exit 1
+fi
+
+cmd=" \
 nixos-rebuild switch \
   -I nixos-config=hosts/${DEPLOY_HOST}/configuration.nix \
+"
+
+if [ -z $DEPLOY_ADDRESS ]; then
+  DEPLOY_ADDRESS="clerie@${DEPLOY_HOST}.net.clerie.de"
+fi
+
+if [ $DEPLOY_ADDRESS != "localhost" ]; then
+  cmd="${cmd} \
   --target-host ${DEPLOY_ADDRESS} \
   --build-host localhost \
-  --use-remote-sudo
+  --use-remote-sudo \
+  "
+fi
+
+eval ${cmd}