Create init_args.sh for environment variable setup

tools/modules/initialize/init_args.sh

@@ -0,0 +1,180 @@
+module_options+=(
+	["init_vars,author"]="@tearran"
+	["init_vars,feature"]="init_vars"
+	["init_vars,example"]="help show"
+	["init_vars,desc"]="Gther systme info store varibles"
+	["init_vars,status"]="Active"
+	["init_vars,group"]="Development"
+)
+# ./init_vars.sh - Armbian Config V2 module
+
+init_vars() {
+	case "${1:-}" in
+		show)
+			_init_vars_main
+			_show_vars
+			;;
+		help|-h|--help)
+			_about_init_vars
+			;;
+		"")
+			_init_vars_main
+			;;
+		*)
+			echo "Unknown command: ${1}"
+			_about_init_vars
+			return 1
+	esac
+}
+
+_init_vars_main() {
+	# ==== PROJECT IDENTITY ====
+	PROJECT_NAME="configng-tools"
+	PROJECT_VERSION="0.0.0"
+	DIALOG="${DIALOG:-whiptail}"
+	# ==== OS INFORMATION ====
+	OS_RELEASE="/etc/armbian-release"
+	OS_INFO="/etc/os-release"
+
+	# Source OS info if readable (non-fatal)
+	# shellcheck disable=SC1091
+	[[ -r "$OS_INFO" ]] && source "$OS_INFO" || true
+	# shellcheck disable=SC1091
+	[[ -r "$OS_RELEASE" ]] && source "$OS_RELEASE" || true
+
+	# ==== TUI VARIABLES ====
+	BACKTITLE="${BACKTITLE:-"Contribute: https://github.com/${PROJECT_NAME}"}"
+	TITLE="${TITLE:-"${VENDOR:-${PROJECT_NAME}} configuration utility"}"
+
+	# ==== SYSTEM INFORMATION ====
+	# Legacy / runtime variables (OS info)
+	DISTRO="${ID:-Unknown}"
+	DISTROID="${VERSION_CODENAME:-Unknown}"
+	ARCHID=$(uname -m)
+	KERNELID="$(uname -r)"
+	HOSTNAME="$(hostname)"
+
+	# ==== NETWORK INFORMATION ====
+	# Detect default IPv4 adapter (best-effort)
+	DEFAULT_ADAPTER="$(ip -4 route ls 2>/dev/null | awk '/default/ {
+		for (i=1;i<=NF;i++) if ($i == "dev") print $(i+1)
+		exit
+	}' || echo "")"
+
+	# Get IPv4 address for the adapter (if present)
+	LOCALIPADD=""
+	[[ -n "${DEFAULT_ADAPTER:-}" ]] && LOCALIPADD="$(ip -4 addr show dev "${DEFAULT_ADAPTER}" 2>/dev/null | 
+				awk '/inet/ {print $2}' | cut -d'/' -f1 | head -n 1 || echo "")"
+
+	# Derive local subnet (best-effort)
+	LOCALSUBNET=""
+	[[ -n "${LOCALIPADD:-}" ]] && LOCALSUBNET="$(echo "${LOCALIPADD}" | cut -d"." -f1-3).0/24"
+
+	# Get default gateway
+	DEFAULT_GATEWAY="$(ip -4 route list exact 0.0.0.0/0 2>/dev/null | 
+					awk '{print $3}' || echo "")"
+
+	# Check internet connectivity with timeout
+	HAS_INTERNET="no"
+	ping -c 1 -W 2 8.8.8.8 >/dev/null 2>&1 && HAS_INTERNET="yes"
+
+	# Get DNS servers as a string
+	DNS_SERVERS="$(grep -v '^#' /etc/resolv.conf 2>/dev/null | 
+				grep nameserver | awk '{print $2}' | paste -sd "," || echo "")"
+
+}
+
+_show_vars() {
+	# Output variables for sourcing
+	echo "# Generated environment variables - $(date)"
+	echo "PROJECT_NAME=\"${PROJECT_NAME}\""
+	echo "PROJECT_VERSION=\"${PROJECT_VERSION}\""
+	echo "BACKTITLE=\"${BACKTITLE}\""
+	echo "TITLE=\"${TITLE}\""
+	echo "DISTRO=\"${DISTRO}\""
+	echo "DISTROID=\"${DISTROID}\""
+	echo "ARCHID=\"${ARCHID}\""
+	echo "KERNELID=\"${KERNELID}\""
+	echo "HOSTNAME=\"${HOSTNAME}\""
+	echo "DEFAULT_ADAPTER=\"${DEFAULT_ADAPTER}\""
+	echo "LOCALIPADD=\"${LOCALIPADD}\""
+	echo "LOCALSUBNET=\"${LOCALSUBNET}\""
+	echo "DEFAULT_GATEWAY=\"${DEFAULT_GATEWAY}\""
+	echo "HAS_INTERNET=\"${HAS_INTERNET}\""
+	echo "DNS_SERVERS=\"${DNS_SERVERS}\""
+	echo "OS_RELEASE=\"${OS_RELEASE}\""
+	echo "OS_INFO=\"${OS_INFO}\""
+	echo "DIALOG=\"${DIALOG}\""
+
+	# Echo OS and Armbian release variables in a way that makes them sourceable
+	echo "# OS release variables from $OS_INFO"
+	if [[ -r "$OS_INFO" ]]; then
+		grep -v "^#" "$OS_INFO" | grep "=" | while IFS= read -r line; do
+			varname=$(echo "$line" | cut -d= -f1)
+			# Use parameter expansion to get the value
+			echo "$varname=\"${!varname:-}\""
+		done
+	else
+		echo "# $OS_INFO not readable"
+	fi
+
+	echo "# Armbian release variables from $OS_RELEASE"
+	if [[ -r "$OS_RELEASE" ]]; then
+		grep -v "^#" "$OS_RELEASE" | grep "=" | while IFS= read -r line; do
+			varname=$(echo "$line" | cut -d= -f1)
+			# Use parameter expansion to get the value
+			echo "$varname=\"${!varname:-}\""
+		done
+	else
+		echo "# $OS_RELEASE not readable"
+	fi
+}
+
+_about_init_vars() {
+	cat <<EOF
+Usage: init_vars <command> [options]
+
+Commands:
+	show        - Show all environment variables in sourceable format
+	help        - Show this help message
+
+Examples:
+	# Initialize environment variables without display
+	init_vars
+
+	# Show all environment variables
+	init_vars show
+
+	# Source variables directly into current shell
+	. <(init_vars show)
+
+	# Evaluate variables in current shell
+	eval "\$(init_vars show)"
+
+	# Show help
+	init_vars help
+
+Notes:
+	- When sourced (not run directly), variables are set but not displayed
+	- Includes all variables from /etc/os-release and /etc/armbian-release
+	- Intended for use with the config-v2 menu and scripting
+
+EOF
+}
+
+### START ./init_vars.sh - Armbian Config V2 test entrypoint
+
+if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
+	# --- Capture and assert help output ---
+	help_output="$(init_vars help)"
+	echo "$help_output" | grep -q "Usage: init_vars" || {
+		echo "fail: Help output does not contain expected usage string"
+		echo "test complete"
+		exit 1
+	}
+	# --- end assertion ---
+	init_vars "$@"
+
+fi
+
+### END ./init_vars.sh - Armbian Config V2 test entrypoint