major refactor

lib/common.sh

@@ -0,0 +1,69 @@
+#!/usr/bin/env bash
+# Shared utility functions for bootstrap CLI
+
+# Avoid double sourcing
+if [ -n "${_LIB_COMMON_SOURCED:-}" ]; then
+    return 0
+fi
+_LIB_COMMON_SOURCED=1
+
+# Ensure running in Bash
+require_bash() {
+    if [ -z "${BASH_VERSION:-}" ]; then
+        echo "Error: This script must be run using bash." >&2
+        exit 1
+    fi
+}
+
+# Color definitions (only if stdout is a TTY)
+if [ -t 1 ]; then
+    RED='\033[0;31m'
+    GREEN='\033[0;32m'
+    YELLOW='\033[0;33m'
+    BLUE='\033[0;34m'
+    NC='\033[0m' # No Color
+else
+    RED=''
+    GREEN=''
+    YELLOW=''
+    BLUE=''
+    NC=''
+fi
+
+log_info() {
+    echo -e "${BLUE}[INFO]${NC} $1"
+}
+
+log_success() {
+    echo -e "${GREEN}[SUCCESS]${NC} $1"
+}
+
+log_warn() {
+    echo -e "${YELLOW}[WARNING]${NC} $1" >&2
+}
+
+log_error() {
+    echo -e "${RED}[ERROR]${NC} $1" >&2
+}
+
+# Yes/No Confirmation prompt
+confirm() {
+    local prompt="$1"
+    local response
+
+    # Read from /dev/tty to support piped installations
+    read -r -p "$prompt [y/N]: " response </dev/tty || true
+    [[ "$response" =~ ^[Yy]$ ]]
+}
+
+# Check if a command is available
+has_command() {
+    command -v "$1" >/dev/null 2>&1
+}
+
+# Temporary directory helper with automatic cleanup on exit
+make_temp_dir() {
+    local tmp_dir
+    tmp_dir="$(mktemp -d)"
+    echo "$tmp_dir"
+}