Modularized

scripts/config.bash

@@ -0,0 +1,56 @@
+#! /usr/bin/env bash
+# hyakvnc config - Show the current configuration for hyakvnc
+
+# shellcheck disable=SC2292
+[ -n "${XDEBUG:-}" ] && set -x # Set XDEBUG to print commands as they are executed
+# shellcheck disable=SC2292
+[ -n "${BASH_VERSION:-}" ] || { echo "Requires Bash"; exit 1; }
+set -o pipefail # Use last non-zero exit code in a pipeline
+set -o errtrace # Ensure the error trap handler is inherited
+set -o nounset  # Exit if an unset variable is used
+SCRIPTDIR="${BASH_SOURCE[0]%/*}"
+# shellcheck source=_lib.bash
+source "${SCRIPTDIR}/_lib.bash"
+
+# help_config()
+function help_config() {
+	cat <<EOF
+Show the current configuration for hyakvnc
+
+Usage: hyakvnc config [config options...]
+	
+Description:
+	Show the current configuration for hyakvnc, as set in the user configuration file at ${HYAKVNC_CONFIG_FILE}, in the current environment, or the default values set by hyakvnc.
+
+Options:
+	-h, --help		Show this help message and exit
+
+Examples:
+	# Show configuration
+	hyakvnc config
+EOF
+}
+
+# cmd_config()
+function cmd_config() {
+	# Parse arguments:
+	while true; do
+		case "${1:-}" in
+			-h | --help)
+				help_config
+				return 0
+				;;
+			-*)
+				help log ERROR "Unknown option for config: ${1:-}\n"
+				return 1
+				;;
+			*)
+				break
+				;;
+		esac
+	done
+	export -p | sed -E 's/^declare\s+-x\s+//; /^HYAKVNC_/!d'
+	return 0
+}
+
+cmd_config "$@"