npm 없으면 설치

install-pi.sh

@@ -58,6 +58,51 @@ for cmd in curl; do
 	command -v "$cmd" &>/dev/null || error "'$cmd' is required."
 done
 
+# Check for Node.js (npm) — install if missing
+if ! command -v npm &>/dev/null; then
+	info "npm is not installed. Installing Node.js..."
+	case "$OS" in
+	Darwin)
+		if command -v brew &>/dev/null; then
+			brew install node
+			success "Node.js installed via Homebrew"
+		else
+			error "Homebrew (brew) is required to install Node.js on macOS. Install it from https://brew.sh/"
+		fi
+		;;
+	Linux)
+		if command -v apt-get &>/dev/null; then
+			sudo apt-get update -y && sudo apt-get install -y nodejs npm
+			success "Node.js installed via apt-get"
+		elif command -v dnf &>/dev/null; then
+			sudo dnf install -y nodejs
+			success "Node.js installed via dnf"
+		elif command -v yum &>/dev/null; then
+			sudo yum install -y nodejs
+			success "Node.js installed via yum"
+		elif command -v zypper &>/dev/null; then
+			sudo zypper -n install nodejs npm
+			success "Node.js installed via zypper"
+		elif command -v pacman &>/dev/null; then
+			sudo pacman -S --noconfirm nodejs npm
+			success "Node.js installed via pacman"
+		else
+			error "No supported package manager found. Install Node.js 18+ manually: https://nodejs.org/"
+		fi
+		;;
+	*)
+		error "Cannot auto-install Node.js on this OS. Install Node.js 18+ manually: https://nodejs.org/"
+		;;
+	esac
+
+	# Verify npm is now available
+	if ! command -v npm &>/dev/null; then
+		error "Node.js installation completed but npm not found. Install Node.js 18+ manually: https://nodejs.org/"
+	fi
+fi
+
+info "npm is available: $(command -v npm)"
+
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