too much to mention

setup.sh

@@ -1,37 +1,64 @@
 #!/usr/bin/env bash
 
-# Check if nixos-version is available
-if [ -x "$(command -v nixos-version)" ]; then
-    echo "Detected NixOS, skipping Nix setup."
-    return
-else 
-    echo "NixOS not detected, installing Nix..."
-    sh <(curl -L https://nixos.org/nix/install) --daemon
-fi
+NIXOS_RELEASE=24.05
 
-# Check if home-manager is available
-if [ -x "$(command -v home-manager)" ]; then
-    echo "Detected Home Manager, did you setup everything already!?"
-    echo "You should only run ./setup.sh once, re-running this could do damage."
+# Check if $HOME/.dotfiles-setup exists, if so exit because setup has already been run
+if [ -f $HOME/.dotfiles-setup ]; then
+    echo "Setup has already been run, exiting..."
     exit 0
 fi
 
-# Link .bashrc
-rm -rf $HOME/.bashrc
-ln -s $HOME/dotfiles/.bashrc $HOME/.bashrc
+# Check if nixos-version is available
+ensure_nixos() {
+    if [ -x "$(command -v nixos-version)" ]; then
+        echo "Detected NixOS, skipping Nix setup."
+        return
+    else 
+        echo "NixOS not detected, installing Nix..."
+        sh <(curl -L https://nixos.org/nix/install) --daemon
+    fi
+}
 
-# Install home-manager
-sudo nix-channel --add https://github.com/nix-community/home-manager/archive/release-24.05.tar.gz home-manager
-sudo nix-channel --update
-sudo nix-shell '<home-manager>' -A install
-nix-shell '<home-manager>' -A install
+setup_symlinks() {
+    # Link .bashrc
+    rm -rf $HOME/.bashrc
+    ln -s $HOME/dotfiles/.bashrc $HOME/.bashrc
 
-# Link proper home-manager configs
-rm -rf ~/.config/home-manager
-ln -s $HOME/dotfiles/config/home-manager ~/.config/home-manager
+    # Link proper home-manager configs
+    rm -rf ~/.config/home-manager
+    ln -s $HOME/dotfiles/config/home-manager ~/.config/home-manager
 
-# Link proper nixos configs
-sudo ln -s $HOME/dotfiles/config/nixos/configuration.nix /etc/nixos/configuration.nix
+    # Link proper nixos configs
+    sudo ln -s $HOME/dotfiles/config/nixos/configuration.nix /etc/nixos/configuration.nix
+}
+
+install_home_manager() {
+    sudo nix-channel --add https://github.com/nix-community/home-manager/archive/release-$NIXOS_RELEASE.tar.gz home-manager
+    sudo nix-channel --update
+    sudo nix-shell '<home-manager>' -A install
+    nix-shell '<home-manager>' -A install
+}
+
+prepare_hostname() {
+    # Ask the user what hostname this machine should have
+    echo "Enter the hostname for this machine:"
+    read hostname
+
+    # Validate hostname to ensure it's not empty, contains only alphanumeric characters, and is less than 64 characters
+    while [[ -z $hostname || ! $hostname =~ ^[a-zA-Z0-9]+$ || ${#hostname} -gt 64 ]]; do
+        echo "Invalid hostname. Please enter a valid hostname:"
+        read hostname
+    done
+
+    # Set the hostname by dumping it into $HOME/.hostname
+    touch $HOME/.hostname
+    echo $hostname > $HOME/.hostname
+}
+
+prepare_hostname
+ensure_nixos
+install_home_manager
+setup_symlinks
 
 # Rebuild NixOS
 sudo nixos-rebuild switch
@@ -39,6 +66,8 @@ sudo nixos-rebuild switch
 # Rebuild Home Manager
 cd $HOME/dotfiles/config/home-manager && NIXPKGS_ALLOW_UNFREE=1 home-manager switch
 
+touch $HOME/.dotfiles-setup
+
 echo "##############################################################"
 echo "#                                                            #"
 echo "# !!!    LOGOUT & LOGIN OR RESTART BEFORE YOU CONTINUE   !!! #"