feat(scripts): add process check and interactive prompts (#230)

install.sh:
- Add check_running_processes() function to detect running Vocalinux
- Prompt user to kill processes before proceeding with installation
- Auto-kill in non-interactive mode

uninstall.sh:
- Add confirmation prompt before killing processes
- Add interactive prompt for keeping data (models, config)
- Simplified --keep-data flag behavior (also keeps config)

This prevents issues during install/upgrade when Vocalinux is
still running, and gives users more control over data preservation.

install.sh

@@ -21,6 +21,52 @@ print_warning() {
     echo -e "\e[1;33m[WARNING]\e[0m $1"
 }
 
+command_exists() {
+    command -v "$1" >/dev/null 2>&1
+}
+
+check_running_processes() {
+    local PIDS=$(pgrep -f "vocalinux" 2>/dev/null || true)
+    
+    if [ -n "$PIDS" ]; then
+        print_warning "Found running Vocalinux process(es): $PIDS"
+        echo ""
+        
+        if [[ "$NON_INTERACTIVE" == "yes" ]]; then
+            print_info "Non-interactive mode: stopping Vocalinux automatically..."
+        else
+            read -p "Vocalinux must be stopped before installation. Kill running process(es)? (Y/n) " -n 1 -r
+            echo
+            if [[ $REPLY =~ ^[Nn]$ ]]; then
+                print_error "Cannot proceed with installation while Vocalinux is running."
+                print_info "Please stop Vocalinux manually and run the installer again."
+                exit 1
+            fi
+        fi
+        
+        print_info "Stopping Vocalinux..."
+        echo "$PIDS" | xargs -r kill -TERM 2>/dev/null || true
+        sleep 2
+        
+        local REMAINING_PIDS=$(pgrep -f "vocalinux" 2>/dev/null || true)
+        
+        if [ -n "$REMAINING_PIDS" ]; then
+            print_warning "Some processes still running, forcing termination..."
+            echo "$REMAINING_PIDS" | xargs -r kill -KILL 2>/dev/null || true
+            sleep 1
+        fi
+        
+        local FINAL_PIDS=$(pgrep -f "vocalinux" 2>/dev/null || true)
+        if [ -n "$FINAL_PIDS" ]; then
+            print_error "Could not terminate all Vocalinux processes: $FINAL_PIDS"
+            print_error "Please manually kill these processes and run the installer again."
+            exit 1
+        else
+            print_success "All Vocalinux processes stopped"
+        fi
+    fi
+}
+
 # Parse command line arguments
 INSTALL_MODE="user"
 RUN_TESTS="no"
@@ -140,7 +186,8 @@ print_info "Vocalinux Installer"
 print_info "=============================="
 echo ""
 
-# Default to installing from latest stable release instead of main branch
+check_running_processes
+
 INSTALL_TAG="${INSTALL_TAG:-v0.6.1-beta}"
 
 # Check if running from within the vocalinux repo or remotely (via curl)

uninstall.sh

@@ -51,20 +51,24 @@ safe_remove() {
 kill_vocalinux_processes() {
     print_info "Checking for running Vocalinux processes..."
     
-    # Find and kill vocalinux processes
     local PIDS=$(pgrep -f "vocalinux" 2>/dev/null || true)
     
     if [ -n "$PIDS" ]; then
         print_warning "Found running Vocalinux process(es): $PIDS"
+        
+        if [[ "$NON_INTERACTIVE" != "yes" ]]; then
+            read -p "Kill running Vocalinux process(es)? (Y/n) " -n 1 -r
+            echo
+            if [[ $REPLY =~ ^[Nn]$ ]]; then
+                print_warning "Processes not killed. Uninstallation may be incomplete."
+                return 0
+            fi
+        fi
+        
         print_info "Stopping Vocalinux..."
-        
-        # Try graceful termination first
         echo "$PIDS" | xargs -r kill -TERM 2>/dev/null || true
-        
-        # Wait a moment for processes to terminate
         sleep 2
         
-        # Check if any processes are still running
         local REMAINING_PIDS=$(pgrep -f "vocalinux" 2>/dev/null || true)
         
         if [ -n "$REMAINING_PIDS" ]; then
@@ -73,7 +77,6 @@ kill_vocalinux_processes() {
             sleep 1
         fi
         
-        # Final check
         local FINAL_PIDS=$(pgrep -f "vocalinux" 2>/dev/null || true)
         if [ -n "$FINAL_PIDS" ]; then
             print_error "Warning: Could not terminate all Vocalinux processes: $FINAL_PIDS"
@@ -149,16 +152,12 @@ CURL_INSTALL_DIR="$HOME/.local/share/vocalinux-install"
 CURL_VENV_DIR="$HOME/.local/share/vocalinux/venv"
 CURL_BIN_DIR="$HOME/.local/bin"
 
-# Print uninstallation options
 echo "Uninstallation options:"
 echo "- Local virtual environment: $VENV_DIR"
 echo "- Curl-installed venv: $CURL_VENV_DIR"
 echo "- Curl-installed repo: $CURL_INSTALL_DIR"
-[[ "$KEEP_CONFIG" == "yes" ]] && echo "- Keeping configuration files"
-[[ "$KEEP_DATA" == "yes" ]] && echo "- Keeping application data"
 echo
 
-# Ask for confirmation
 if [[ "$NON_INTERACTIVE" == "yes" ]]; then
     print_info "Non-interactive mode: proceeding with uninstallation..."
 else
@@ -168,6 +167,16 @@ else
         print_info "Uninstallation cancelled."
         exit 0
     fi
+    
+    if [[ "$KEEP_DATA" != "yes" ]]; then
+        read -p "Do you want to keep your data (models, config)? (y/N) " -n 1 -r
+        echo
+        if [[ $REPLY =~ ^[Yy]$ ]]; then
+            KEEP_DATA="yes"
+            KEEP_CONFIG="yes"
+            print_info "Data and configuration will be preserved."
+        fi
+    fi
 fi
 
 # Function to handle virtual environment removal