diff --git a/rebuild.sh b/rebuild.sh
index 1b8ac6d..d711ecc 100755
--- a/rebuild.sh
+++ b/rebuild.sh
@@ -6,17 +6,45 @@ set -e
 
 git_status="$(git status)"
 
-if $(echo "${git_status}" | grep "nothing to commit" &> /dev/null) ; then
-    echo "Nothing to commit."
+if echo "${git_status}" | grep "nothing to commit"; then
+    #echo "Nothing to commit."
+    CAN_BUILD="Y"
+    :
 
-else
-    echo "buuuhuuu"
+elif echo "${git_status}" | grep "branch is ahead of 'origin/"; then
+    #echo "4"
+    CAN_BUILD="N"
+    :
+
+elif echo "${git_status}" | grep "Changes not staged for commit"; then
+    #echo "There are changes not yet staged for commit."
+    CAN_BUILD="N"
+    :
+
+elif echo "${git_status}" | grep "Changes to be committed"; then
+    #echo "There are changes not yet committed."
+    CAN_BUILD="N"
+    :
 
 fi
 
 
-echo "Copying configurations to etc and rebuilding."
-#sudo cp /home/adam/nixos-configurations/*.nix /etc/nixos/.
+function build {
+    echo "Copying configurations to etc and rebuilding."
+    #sudo cp /home/adam/nixos-configurations/*.nix /etc/nixos/.
 
-echo "Rebuilding os..."
-#sudo nixos-rebuild switch
+    echo "Rebuilding os..."
+    #sudo nixos-rebuild switch
+    exit 0
+}
+
+
+if [[ CAN_BUILD != "Y" ]]; then
+    echo -e "\ngit not in sync with server, or has uncomitted changes?\nDo you want to continue?"
+    select yn in "Yes" "No"; do
+    case $yn in
+        Yes ) build;;
+        No ) exit;;
+    esac
+    done
+fi