fix(install): Improve interactive mode detection and non-interactive installation handling in install.sh

install.sh

@@ -50,11 +50,35 @@ fi
 
 # Detect if script is being piped or run directly
 PIPED=0
+INTERACTIVE=1
 if [ ! -t 0 ]; then
   # Being piped, need to clone the repo
   PIPED=1
 fi
 
+# Check if stdin is a terminal
+if [ ! -t 0 ] || [ ! -t 1 ]; then
+  # Either stdin or stdout is not a terminal, check if -y was provided
+  if [ $AUTO_YES -ne 1 ]; then
+    echo "Warning: Running in non-interactive mode without -y flag."
+    echo "Will ask for confirmation via controlling terminal."
+    # Try to use a controlling terminal for user input
+    if [ -t 1 ]; then
+      # Stdout is a terminal, use it
+      exec < /dev/tty 2>/dev/null || INTERACTIVE=0
+    else
+      # Try to find controlling terminal
+      exec < /dev/tty 2>/dev/null || INTERACTIVE=0
+    fi
+    
+    if [ $INTERACTIVE -eq 0 ]; then
+      echo "No controlling terminal available. To run non-interactively, use:"
+      echo "  curl -sSL https://code.foss.global/serve.zone/nupst/raw/branch/main/install.sh | sudo bash -s -- -y"
+      exit 1
+    fi
+  fi
+fi
+
 # Helper function to detect OS type
 detect_os() {
   if [ -f /etc/os-release ]; then
@@ -141,8 +165,10 @@ if [ $PIPED -eq 1 ]; then
     if [ $AUTO_YES -eq 1 ]; then
       echo "Auto-installing git (-y flag provided)..."
       install_git
-    else
-      read -p "Would you like to install git now? (y/N): " install_git_prompt
+    elif [ $INTERACTIVE -eq 1 ]; then
+      # If interactive and no -y flag, ask the user
+      echo "Would you like to install git now? (y/N): "
+      read -r install_git_prompt
       
       if [[ "$install_git_prompt" =~ ^[Yy]$ ]]; then
         install_git
@@ -152,6 +178,12 @@ if [ $PIPED -eq 1 ]; then
         echo "  sudo bash install.sh -y"
         exit 1
       fi
+    else
+      # Non-interactive mode without -y flag
+      echo "Error: Git is required but not installed."
+      echo "In non-interactive mode, use -y flag to auto-install dependencies:"
+      echo "  curl -sSL https://code.foss.global/serve.zone/nupst/raw/branch/main/install.sh | sudo bash -s -- -y"
+      exit 1
     fi
   fi