V8.00.000.2025.06.17

Signed-off-by: Marc S. Weidner <msw@coresecret.dev>

ciss_debian_installer.sh

@@ -56,6 +56,11 @@
 [[ ${#} -eq 0 ]] && {
   . ./lib/0000_usage.sh; usage >&2; exit 1; }
 
+### CHECK FOR CONTACT, HELP, AND VERSION STRING.
+for arg in "$@"; do case "${arg,,}" in -c|--contact) . ./meta_loader_cuv.sh; contact; exit 0;; esac; done
+for arg in "$@"; do case "${arg,,}" in -h|--help)    . ./meta_loader_cuv.sh; usage; exit 0;; esac; done
+for arg in "$@"; do case "${arg,,}" in -v|--version) . ./meta_loader_cuv.sh; version; exit 0;; esac; done
+
 ### SOURCING MUST SET EARLY VARIABLES. SOURCING COLOR_ECHO() AND GUARD_SOURCING().
 . ./lib/0010_guard_sourcing.sh
 . ./lib/0010_source_guard.sh
@@ -63,11 +68,6 @@ source_guard "./var/color.var.sh"
 source_guard "./var/early.var.sh"
 source_guard "./lib/0004_color_echo.sh"
 
-### CHECK FOR CONTACT, HELP, AND VERSION STRING.
-for arg in "$@"; do case "${arg,,}" in -c|--contact) . ./lib/0001_contact.sh; contact; exit 0;; esac; done
-for arg in "$@"; do case "${arg,,}" in -h|--help)    . ./lib/0000_usage.sh; usage; exit 0;; esac; done
-for arg in "$@"; do case "${arg,,}" in -v|--version) . ./lib/0002_version.sh; version; exit 0;; esac; done
-
 ### ALL CHECKS DONE. READY TO START THE SCRIPT.
 color_echo "${BLU}" "ALL CHECKS DONE. READY TO START THE SCRIPT."
 declare -grx VAR_SETUP="true"
@@ -146,6 +146,11 @@ arg_parser "$@"
 color_echo "${BLU}" "PRIORITY UPDATES."
 arg_priority_check
 
+### HASHING PASSWORDS.
+color_echo "${BLU}" "PRIORITY UPDATES."
+nuke_passphrase
+# TODO: Implement func() for other passwords.
+
 ### MAIN PROGRAM SEQUENCE
 color_echo "${BLU}" "YAML PARSER."
 yaml_parser

lib/0004_color_echo.sh

@@ -14,6 +14,10 @@ guard_sourcing
 
 #######################################
 # Print-colored text.
+# Globals:
+#   NL
+#   RES
+#   WHI
 # Arguments:
 #   1: Color code.
 #   *: Text to print.
@@ -22,6 +26,6 @@ color_echo() {
   declare c="$1"
   shift
   declare msg="${*}"
-  printf "%s[INFO]%s %s%s.%s%s" "${c}" "${RES}" "${WHI}" "${msg}" "${RES}" "${NL}"
+  printf "%b[INFO]%b %b%s.%b%b" "${c}" "${RES}" "${WHI}" "${msg}" "${RES}" "${NL}"
 }
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

lib/0024_logging_helper.sh

@@ -21,7 +21,7 @@ guard_sourcing
 #   2: Text string to print on terminal.
 #######################################
 do_print_color() {
-  printf "%s\n" "${1}${2}${RES}"
+  printf "%b\n" "${1}${2}${RES}"
 }
 
 #######################################

lib/0025_logging_modules.sh

@@ -76,7 +76,7 @@ do_get_log_color() {
 #   LOG_INS
 # Arguments:
 #   1: "${LOG_LEVEL}" one of: "debug" | "info" | "notice" | "warn" | "error" | "critical" | "fatal" | "emergency"
-#   2: "${LOG_ONLY}" boolean "true" | "false"
+#   2: "${LOG_ONLY}"  one of: "file_only" | "tty"
 #   @: "${MESSAGE[*]}" arbitrary text string to log.
 #######################################
 do_log() {

lib/0040_check_var.sh

@@ -13,24 +13,36 @@
 guard_sourcing
 
 #######################################
-# Unbound Variable Check and call Trap on ERR.
+# Unbound Variable Check.
 # Globals:
 #   ERR_UNBOUND_VARIABLE
+#   GRE
+#   NL
+#   RED
+#   RES
 # Arguments:
-#   1: VAR_NAME to check
+#   1: VAR_NAME to check NOT the variable itself.
 # Returns:
 #   ERR_UNBOUND_VARIABLE
 #######################################
 check_var() {
   declare var_name_to_check="$1"
-  if [[ -n "${!var_name_to_check+exists}" ]]; then
+
+  ### First check: Is the passed-in variable name itself set?
+  if ! [[ -v var_name_to_check ]]; then
+    printf "%b❌ Error: Variable NOT set: '%s'. Exiting Script. %b%b" "${RED}" "${var_name_to_check}" "${RES}" "${NL}" >&2
+    return "${ERR_UNBOUND_VARIABLE}"
+  fi
+
+  ### Second check: Is the variable referenced by var_name_to_check declared?
+  if [[ -v "${var_name_to_check}" ]]; then
     if [[ -n "${!var_name_to_check}" ]]; then
-      printf "\e[92m✅ Variable: '%s' exists and is NOT empty: '%s' \e[0m\n" "${var_name_to_check}" "${!var_name_to_check}"
+      printf "%b✅ Variable: '%s' exists and is NOT empty: '%s'. %b%b" "${GRE}" "${var_name_to_check}" "${!var_name_to_check}" "${RES}" "${NL}"
     else
-      printf "\e[92m✅ Variable: '%s' exists but is empty. \e[0m\n" "${var_name_to_check}"
+      printf "%b✅ Variable: '%s' exists but is empty. %b%b" "${GRE}" "${var_name_to_check}" "${RES}" "${NL}"
     fi
   else
-    printf "\e[91m❌ Variable: '%s' is not declared. Exiting Script. \e[0m\n" "${var_name_to_check}" >&2
+    printf "%b❌ Error: Variable NOT declared: '%s'. Exiting Script. %b%b" "${RED}" "${var_name_to_check}" "${RES}" "${NL}" >&2
     return "${ERR_UNBOUND_VARIABLE}"
   fi
 }

lib/0060_trap_err.sh

@@ -15,17 +15,22 @@ guard_sourcing
 #######################################
 # Print Error Message for Trap on 'ERR' in '${ERROR_LOG}'.
 # Globals:
+#   BASH_VERSINFO
+#   EPOCHREALTIME
 #   ERRCMMD
 #   ERRCODE
 #   ERRFUNC
 #   ERRLINE
 #   ERRSCRT
+#   EUID
+#   HOSTNAME
 #   LOG_DBG
 #   LOG_ERR
 #   LOG_TRC
 #   LOG_VAR
 #   NL
 #   SECONDS
+#   UID
 #   VAR_ARG_SANITIZED
 #   VAR_DEBUG_TRACE
 #   VAR_DEBUG_TRAP
@@ -39,30 +44,39 @@ guard_sourcing
 #######################################
 print_file_err() {
   {
-    printf "❌ CISS.debian.installer Script failed. %s" "${NL}"
+    printf "❌ CISS.debian.installer Script failed. %b" "${NL}"
-    printf "❌ GIT Commit          : %s %s" "${VAR_GIT_HEAD}" "${NL}"
+    printf "❌ GIT Commit          : %s %b" "${VAR_GIT_HEAD}" "${NL}"
-    printf "❌ Version             : %s %s" "${VAR_VERSION}" "${NL}"
+    printf "❌ Version             : %s %b" "${VAR_VERSION}" "${NL}"
-    printf "❌ Hostsystem          : %s %s" "${VAR_SYSTEM}" "${NL}"
+    printf "❌ Epoch               : %s %b" "${EPOCHREALTIME}" "${NL}"
-    printf "❌ Error               : %s %s" "${ERRCODE}" "${NL}"
+    printf "❌ Bash MAJ Release    : %s %b" "${BASH_VERSINFO[0]}" "${NL}"
-    printf "❌ Line                : %s %s" "${ERRLINE}" "${NL}"
+    printf "❌ Bash MIN Version    : %s %b" "${BASH_VERSINFO[1]}" "${NL}"
-    printf "❌ Script              : %s %s" "${ERRSCRT}" "${NL}"
+    printf "❌ Bash Patch Level    : %s %b" "${BASH_VERSINFO[2]}" "${NL}"
-    printf "❌ Function            : %s %s" "${ERRFUNC}" "${NL}"
+    printf "❌ Bash Build Version  : %s %b" "${BASH_VERSINFO[3]}" "${NL}"
-    printf "❌ Command             : %s %s" "${ERRCMMD}" "${NL}"
+    printf "❌ Bash Release        : %s %b" "${BASH_VERSINFO[4]}" "${NL}"
-    printf "❌ Script PID          : %s %s" "${$}" "${NL}"
+    printf "❌ UID                 : %s %b" "${UID}" "${NL}"
-    printf "❌ Script Runtime      : %s %s" "${SECONDS}" "${NL}"
+    printf "❌ EUID                : %s %b" "${EUID}" "${NL}"
-    printf "❌ Arguments Counter   : %s %s" "${VAR_PARAM_COUNT}" "${NL}"
+    printf "❌ Hostname            : %s %b" "${HOSTNAME}" "${NL}"
-    printf "❌ Arguments Original  : %s %s" "${VAR_PARAM_STRNG}" "${NL}"
+    printf "❌ Hostsystem          : %s %b" "${VAR_SYSTEM}" "${NL}"
-    printf "❌ Arguments Sanitized : %s %s" "${VAR_ARG_SANITIZED}" "${NL}"
+    printf "❌ Error               : %s %b" "${ERRCODE}" "${NL}"
+    printf "❌ Line                : %s %b" "${ERRLINE}" "${NL}"
+    printf "❌ Script              : %s %b" "${ERRSCRT}" "${NL}"
+    printf "❌ Function            : %s %b" "${ERRFUNC}" "${NL}"
+    printf "❌ Command             : %s %b" "${ERRCMMD}" "${NL}"
+    printf "❌ Script PID          : %s %b" "${$}" "${NL}"
+    printf "❌ Script Runtime      : %s %b" "${SECONDS}" "${NL}"
+    printf "❌ Arguments Counter   : %s %b" "${VAR_PARAM_COUNT}" "${NL}"
+    printf "❌ Arguments Original  : %s %b" "${VAR_PARAM_STRNG}" "${NL}"
+    printf "❌ Arguments Sanitized : %s %b" "${VAR_ARG_SANITIZED}" "${NL}"
     if [[ "${VAR_DEBUG_TRACE}" == "true" || "${VAR_DEBUG_TRAP}" == "true" ]]; then
-      printf "❌ Vars Dump saved at  : %s %s" "${LOG_VAR}" "${NL}"
+      printf "❌ Vars Dump saved at  : %s %b" "${LOG_VAR}" "${NL}"
     fi
     if "${VAR_DEBUG_TRAP}"; then
-      printf "❌ DEBUG Log saved at  : %s %s" "${LOG_DBG}" "${NL}"
+      printf "❌ DEBUG Log saved at  : %s %b" "${LOG_DBG}" "${NL}"
-      printf "❌                   cat %s %s" "${LOG_DBG}" "${NL}"
+      printf "❌                   cat %s %b" "${LOG_DBG}" "${NL}"
     fi
     if "${VAR_DEBUG_TRACE}"; then
-      printf "❌ TRACE Log saved at  : %s %s" "${LOG_TRC}" "${NL}"
+      printf "❌ TRACE Log saved at  : %s %b" "${LOG_TRC}" "${NL}"
-      printf "❌                   cat %s %s" "${LOG_TRC}" "${NL}"
+      printf "❌                   cat %s %b" "${LOG_TRC}" "${NL}"
     fi
     printf "%s" "${NL}"
   } >> "${LOG_ERR}"
@@ -71,19 +85,22 @@ print_file_err() {
 #######################################
 # Print Error Message for Trap on 'ERR' on Terminal.
 # Globals:
+#   BASH_VERSINFO
+#   EPOCHREALTIME
 #   ERRCMMD
 #   ERRCODE
 #   ERRFUNC
 #   ERRLINE
 #   ERRSCRT
+#   EUID
+#   HOSTNAME
 #   LOG_DBG
 #   LOG_ERR
 #   LOG_TRC
 #   LOG_VAR
 #   NL
-#   RED
-#   RES
 #   SECONDS
+#   UID
 #   VAR_ARG_SANITIZED
 #   VAR_DEBUG_TRACE
 #   VAR_DEBUG_TRAP
@@ -96,35 +113,44 @@ print_file_err() {
 #   None
 #######################################
 print_scr_err() {
-  printf "%s❌ CISS.debian.installer Script failed. %s%s" "${RED}" "${RES}" "${NL}" >&2
+  printf "%b❌ CISS.debian.installer Script failed. %b%b" "${RED}" "${RES}" "${NL}" >&2
-  printf "%s❌ GIT Commit          : %s %s%s" "${RED}" "${VAR_GIT_HEAD}" "${RES}" "${NL}" >&2
+  printf "%b❌ GIT Commit          : %s %b%b" "${RED}" "${VAR_GIT_HEAD}" "${RES}" "${NL}" >&2
-  printf "%s❌ Version             : %s %s%s" "${RED}" "${VAR_VERSION}" "${RES}" "${NL}" >&2
+  printf "%b❌ Version             : %s %b%b" "${RED}" "${VAR_VERSION}" "${RES}" "${NL}" >&2
-  printf "%s❌ Hostsystem          : %s %s%s" "${RED}" "${VAR_SYSTEM}" "${RES}" "${NL}" >&2
+  printf "%b❌ Epoch               : %s %b%b" "${RED}" "${EPOCHREALTIME}" "${RES}" "${NL}" >&2
-  printf "%s❌ Error               : %s %s%s" "${RED}" "${ERRCODE}" "${RES}" "${NL}" >&2
+  printf "%b❌ Bash MAJ Release    : %s %b%b" "${RED}" "${BASH_VERSINFO[0]}" "${RES}" "${NL}" >&2
-  printf "%s❌ Line                : %s %s%s" "${RED}" "${ERRLINE}" "${RES}" "${NL}" >&2
+  printf "%b❌ Bash MIN Version    : %s %b%b" "${RED}" "${BASH_VERSINFO[1]}" "${RES}" "${NL}" >&2
-  printf "%s❌ Script              : %s %s%s" "${RED}" "${ERRSCRT}" "${RES}" "${NL}" >&2
+  printf "%b❌ Bash Patch Level    : %s %b%b" "${RED}" "${BASH_VERSINFO[2]}" "${RES}" "${NL}" >&2
-  printf "%s❌ Function            : %s %s%s" "${RED}" "${ERRFUNC}" "${RES}" "${NL}" >&2
+  printf "%b❌ Bash Build Version  : %s %b%b" "${RED}" "${BASH_VERSINFO[3]}" "${RES}" "${NL}" >&2
-  printf "%s❌ Command             : %s %s%s" "${RED}" "${ERRCMMD}" "${RES}" "${NL}" >&2
+  printf "%b❌ Bash Release        : %s %b%b" "${RED}" "${BASH_VERSINFO[4]}" "${RES}" "${NL}" >&2
-  printf "%s❌ Script PID          : %s %s%s" "${RED}" "${$}" "${RES}" "${NL}" >&2
+  printf "%b❌ UID                 : %s %b%b" "${RED}" "${UID}" "${RES}" "${NL}" >&2
-  printf "%s❌ Script Runtime      : %s %s%s" "${RED}" "${SECONDS}" "${RES}" "${NL}" >&2
+  printf "%b❌ EUID                : %s %b%b" "${RED}" "${EUID}" "${RES}" "${NL}" >&2
-  printf "%s❌ Arguments Counter   : %s %s%s" "${RED}" "${VAR_PARAM_COUNT}" "${RES}" "${NL}" >&2
+  printf "%b❌ Hostname            : %s %b%b" "${RED}" "${HOSTNAME}" "${RES}" "${NL}" >&2
-  printf "%s❌ Arguments Original  : %s %s%s" "${RED}" "${VAR_PARAM_STRNG}" "${RES}" "${NL}" >&2
+  printf "%b❌ Hostsystem          : %s %b%b" "${RED}" "${VAR_SYSTEM}" "${RES}" "${NL}" >&2
-  printf "%s❌ Arguments Sanitized : %s %s%s" "${RED}" "${VAR_ARG_SANITIZED}" "${RES}" "${NL}" >&2
+  printf "%b❌ Error               : %s %b%b" "${RED}" "${ERRCODE}" "${RES}" "${NL}" >&2
-  printf "%s❌ Error Log saved at  : %s %s%s" "${RED}" "${LOG_ERR}" "${RES}" "${NL}" >&2
+  printf "%b❌ Line                : %s %b%b" "${RED}" "${ERRLINE}" "${RES}" "${NL}" >&2
-  printf "%s❌                   cat %s %s%s" "${RED}" "${LOG_ERR}" "${RES}" "${NL}" >&2
+  printf "%b❌ Script              : %s %b%b" "${RED}" "${ERRSCRT}" "${RES}" "${NL}" >&2
+  printf "%b❌ Function            : %s %b%b" "${RED}" "${ERRFUNC}" "${RES}" "${NL}" >&2
+  printf "%b❌ Command             : %s %b%b" "${RED}" "${ERRCMMD}" "${RES}" "${NL}" >&2
+  printf "%b❌ Script PID          : %s %b%b" "${RED}" "${$}" "${RES}" "${NL}" >&2
+  printf "%b❌ Script Runtime      : %s %b%b" "${RED}" "${SECONDS}" "${RES}" "${NL}" >&2
+  printf "%b❌ Arguments Counter   : %s %b%b" "${RED}" "${VAR_PARAM_COUNT}" "${RES}" "${NL}" >&2
+  printf "%b❌ Arguments Original  : %s %b%b" "${RED}" "${VAR_PARAM_STRNG}" "${RES}" "${NL}" >&2
+  printf "%b❌ Arguments Sanitized : %s %b%b" "${RED}" "${VAR_ARG_SANITIZED}" "${RES}" "${NL}" >&2
+  printf "%b❌ Error Log saved at  : %s %b%b" "${RED}" "${LOG_ERR}" "${RES}" "${NL}" >&2
+  printf "%b❌                   cat %s %b%b" "${RED}" "${LOG_ERR}" "${RES}" "${NL}" >&2
   if [[ "${VAR_DEBUG_TRACE}" == "true" || "${VAR_DEBUG_TRAP}" == "true" ]]; then
-    printf "%s❌ Vars Dump saved at  : %s %s%s" "${RED}" "${LOG_VAR}" "${RES}" "${NL}" >&2
+    printf "%b❌ Vars Dump saved at  : %s %b%b" "${RED}" "${LOG_VAR}" "${RES}" "${NL}" >&2
   fi
   if "${VAR_DEBUG_TRAP}"; then
-    printf "%s❌ Debug Log saved at  : %s %s%s" "${RED}" "${LOG_DBG}" "${RES}" "${NL}" >&2
+    printf "%b❌ Debug Log saved at  : %s %b%b" "${RED}" "${LOG_DBG}" "${RES}" "${NL}" >&2
-    printf "%s❌                   cat %s %s%s" "${RED}" "${LOG_DBG}" "${RES}" "${NL}" >&2
+    printf "%b❌                   cat %s %b%b" "${RED}" "${LOG_DBG}" "${RES}" "${NL}" >&2
   fi
   if "${VAR_DEBUG_TRACE}"; then
-    printf "%s❌ Debug Log saved at  : %s %s%s" "${RED}" "${LOG_TRC}" "${RES}" "${NL}" >&2
+    printf "%b❌ Debug Log saved at  : %s %b%b" "${RED}" "${LOG_TRC}" "${RES}" "${NL}" >&2
-    printf "%s❌                   cat %s %s%s" "${RED}" "${LOG_TRC}" "${RES}" "${NL}" >&2
+    printf "%b❌                   cat %s %b%b" "${RED}" "${LOG_TRC}" "${RES}" "${NL}" >&2
   fi
   print_stacktrace
-  printf "%s" "${NL}"
+  printf "%b" "${NL}"
 }
 
 #######################################
@@ -141,10 +167,10 @@ print_scr_err() {
 #######################################
 print_stacktrace() {
   if (( ${#FUNCNAME[@]} > 2 )); then
-    printf "%s" "${NL}"
+    printf "%b" "${NL}"
-    printf "%s❌ Call Stack (most recent call first): %s%s" "${RED}" "${RES}" "${NL}" >&2
+    printf "%b❌ Call Stack (most recent call first): %b%b" "${RED}" "${RES}" "${NL}" >&2
     for ((i=1; i<${#FUNCNAME[@]}-1; i++)); do
-      printf "%s❌   ↳ %s() at [%s:%s] %s%s" "${RED}" "${FUNCNAME[i]}" "${BASH_SOURCE[i]}" "${BASH_LINENO[i-1]}" "${RES}" "${NL}" >&2
+      printf "%b❌   ↳ %s() at [%s:%s] %b%b" "${RED}" "${FUNCNAME[i]}" "${BASH_SOURCE[i]}" "${BASH_LINENO[i-1]}" "${RES}" "${NL}" >&2
     done
   fi
 }

lib/0070_trap_exit.sh

@@ -69,26 +69,26 @@ trap_exit_zero() {
   clean_up "${var_trap_exit_zero_code}"
 
   if [[ "${VAR_SCRIPT_SUCCESS}" == "true" ]]; then
-    printf "%s" "${NL}"
+    printf "%b" "${NL}"
-    printf "%s✅ CISS.debian.installer Script successful. %s%s" "${GRE}" "${RES}" "${NL}"
+    printf "%b✅ CISS.debian.installer Script successful. %s%s" "${GRE}" "${RES}" "${NL}"
-    printf "%s✅ Exited with Status : %s %s%s" "${GRE}" "${var_trap_exit_zero_code}" "${RES}" "${NL}"
+    printf "%b✅ Exited with Status : %s %b%b" "${GRE}" "${var_trap_exit_zero_code}" "${RES}" "${NL}"
-    printf "%s" "${NL}"
+    printf "%b" "${NL}"
     if [[ "${VAR_DEBUG_TRACE}" == "true" || "${VAR_DEBUG_TRAP}" == "true" ]]; then
-      printf "%s✅ Vars Dump saved at : %s %s%s" "${GRE}" "${LOG_VAR}" "${RES}" "${NL}"
+      printf "%b✅ Vars Dump saved at : %s %b%b" "${GRE}" "${LOG_VAR}" "${RES}" "${NL}"
-      printf "%s✅                  cat %s %s%s" "${GRE}" "${LOG_VAR}" "${RES}" "${NL}"
+      printf "%b✅                  cat %s %b%b" "${GRE}" "${LOG_VAR}" "${RES}" "${NL}"
     fi
     if [[ "${VAR_DEBUG_TRAP}" == "true" ]]; then
-      printf "%s✅ DEBUG Log saved at : %s %s%s" "${GRE}" "${LOG_DBG}" "${RES}" "${NL}"
+      printf "%b✅ DEBUG Log saved at : %s %b%b" "${GRE}" "${LOG_DBG}" "${RES}" "${NL}"
-      printf "%s✅                  cat %s %s%s" "${GRE}" "${LOG_DBG}" "${RES}" "${NL}"
+      printf "%b✅                  cat %s %b%b" "${GRE}" "${LOG_DBG}" "${RES}" "${NL}"
     fi
     if [[ "${VAR_DEBUG_TRACE}" == "true" ]]; then
-      printf "%s✅ TRACE Log saved at : %s %s%s" "${GRE}" "${LOG_TRC}" "${RES}" "${NL}"
+      printf "%b✅ TRACE Log saved at : %s %b%b" "${GRE}" "${LOG_TRC}" "${RES}" "${NL}"
-      printf "%s✅                  cat %s %s%s" "${GRE}" "${LOG_TRC}" "${RES}" "${NL}"
+      printf "%b✅                  cat %s %b%b" "${GRE}" "${LOG_TRC}" "${RES}" "${NL}"
     fi
-    printf "%s" "${NL}"
+    printf "%b" "${NL}"
-    printf "%s💷 Please consider donating to my work at: %s%s" "${MAG}" "${RES}" "${NL}"
+    printf "%b💷 Please consider donating to my work at: %b%b" "${MAG}" "${RES}" "${NL}"
-    printf "%s🔗 https://coresecret.eu/spenden/          %s%s" "${MAG}" "${RES}" "${NL}"
+    printf "%b🔗 https://coresecret.eu/spenden/          %b%b" "${MAG}" "${RES}" "${NL}"
-    printf "%s" "${NL}"
+    printf "%b" "${NL}"
   fi
   exit "${var_trap_exit_zero_code}"
 }
@@ -134,30 +134,37 @@ trap_exit_non_zero() {
       gauge ) dialog_gauge_cleaner ;;
     esac
     clean_up "${var_code}"
-    printf "%s❌ CISS.debian.installer Script failed. Most probably cause of unbound variable. %s%s" "${RED}" "${RES}" "${NL}" >&2
+    printf "%b❌ CISS.debian.installer Script failed. Most probably cause of unbound variable. %b%b" "${RED}" "${RES}" "${NL}" >&2
-    printf "%s❌ GIT Commit          : %s %s%s" "${RED}" "${VAR_GIT_HEAD}" "${RES}" "${NL}" >&2
+    printf "%b❌ GIT Commit          : %s %b%b" "${RED}" "${VAR_GIT_HEAD}" "${RES}" "${NL}" >&2
-    printf "%s❌ Version             : %s %s%s" "${RED}" "${VAR_VERSION}" "${RES}" "${NL}" >&2
+    printf "%b❌ Version             : %s %b%b" "${RED}" "${VAR_VERSION}" "${RES}" "${NL}" >&2
-    printf "%s❌ Hostsystem          : %s %s%s" "${RED}" "${VAR_SYSTEM}" "${RES}" "${NL}" >&2
+    printf "%b❌ Epoch               : %s %b%b" "${RED}" "${EPOCHREALTIME}" "${RES}" "${NL}" >&2
-    printf "%s❌ Error               : %s %s%s" "${RED}" "${var_code}" "${RES}" "${NL}" >&2
+    printf "%b❌ Bash MAJ Release    : %s %b%b" "${RED}" "${BASH_VERSINFO[0]}" "${RES}" "${NL}" >&2
-    printf "%s❌ Line                : %s %s%s" "${RED}" "${var_line}" "${RES}" "${NL}" >&2
+    printf "%b❌ Bash MIN Version    : %s %b%b" "${RED}" "${BASH_VERSINFO[1]}" "${RES}" "${NL}" >&2
-    printf "%s❌ Script              : %s %s%s" "${RED}" "${var_scrt}" "${RES}" "${NL}" >&2
+    printf "%b❌ Bash Patch Level    : %s %b%b" "${RED}" "${BASH_VERSINFO[2]}" "${RES}" "${NL}" >&2
-    printf "%s❌ Function            : %s %s%s" "${RED}" "${var_func}" "${RES}" "${NL}" >&2
+    printf "%b❌ UID                 : %s %b%b" "${RED}" "${UID}" "${RES}" "${NL}" >&2
-    printf "%s❌ Command             : %s %s%s" "${RED}" "${var_cmmd}" "${RES}" "${NL}" >&2
+    printf "%b❌ EUID                : %s %b%b" "${RED}" "${EUID}" "${RES}" "${NL}" >&2
-    printf "%s❌ Script PID          : %s %s%s" "${RED}" "${$}" "${RES}" "${NL}" >&2
+    printf "%b❌ Hostname            : %s %b%b" "${RED}" "${HOSTNAME}" "${RES}" "${NL}" >&2
-    printf "%s❌ Script Runtime      : %s %s%s" "${RED}" "${SECONDS}" "${RES}" "${NL}" >&2
+    printf "%b❌ Hostsystem          : %s %b%b" "${RED}" "${VAR_SYSTEM}" "${RES}" "${NL}" >&2
-    printf "%s❌ Arguments Counter   : %s %s%s" "${RED}" "${VAR_PARAM_COUNT}" "${RES}" "${NL}" >&2
+    printf "%b❌ Error               : %s %b%b" "${RED}" "${var_code}" "${RES}" "${NL}" >&2
-    printf "%s❌ Arguments Original  : %s %s%s" "${RED}" "${VAR_PARAM_STRNG}" "${RES}" "${NL}" >&2
+    printf "%b❌ Line                : %s %b%b" "${RED}" "${var_line}" "${RES}" "${NL}" >&2
-    printf "%s❌ Arguments Sanitized : %s %s%s" "${RED}" "${VAR_ARG_SANITIZED}" "${RES}" "${NL}" >&2
+    printf "%b❌ Script              : %s %b%b" "${RED}" "${var_scrt}" "${RES}" "${NL}" >&2
+    printf "%b❌ Function            : %s %b%b" "${RED}" "${var_func}" "${RES}" "${NL}" >&2
+    printf "%b❌ Command             : %s %b%b" "${RED}" "${var_cmmd}" "${RES}" "${NL}" >&2
+    printf "%b❌ Script PID          : %s %b%b" "${RED}" "${$}" "${RES}" "${NL}" >&2
+    printf "%b❌ Script Runtime      : %s %b%b" "${RED}" "${SECONDS}" "${RES}" "${NL}" >&2
+    printf "%b❌ Arguments Counter   : %s %b%b" "${RED}" "${VAR_PARAM_COUNT}" "${RES}" "${NL}" >&2
+    printf "%b❌ Arguments Original  : %s %b%b" "${RED}" "${VAR_PARAM_STRNG}" "${RES}" "${NL}" >&2
+    printf "%b❌ Arguments Sanitized : %s %b%b" "${RED}" "${VAR_ARG_SANITIZED}" "${RES}" "${NL}" >&2
     if [[ "${VAR_DEBUG_TRACE}" == "true" || "${VAR_DEBUG_TRAP}" == "true" ]]; then
-      printf "%s❌ Vars Dump saved at  : %s %s%s" "${RED}" "${LOG_VAR}" "${RES}" "${NL}" >&2
+      printf "%b❌ Vars Dump saved at  : %s %b%b" "${RED}" "${LOG_VAR}" "${RES}" "${NL}" >&2
     fi
     if [[ "${VAR_DEBUG_TRAP}" == "true" ]]; then
-      printf "%s❌ Debug Log saved at  : %s %s%s" "${RED}" "${LOG_DBG}" "${RES}" "${NL}" >&2
+      printf "%b❌ Debug Log saved at  : %s %b%b" "${RED}" "${LOG_DBG}" "${RES}" "${NL}" >&2
-      printf "%s❌                   cat %s %s%s" "${RED}" "${LOG_DBG}" "${RES}" "${NL}" >&2
+      printf "%b❌                   cat %s %b%b" "${RED}" "${LOG_DBG}" "${RES}" "${NL}" >&2
     fi
     if [[ "${VAR_DEBUG_TRACE}" == "true" ]]; then
-      printf "%s❌ Debug Log saved at  : %s %s%s" "${RED}" "${LOG_TRC}" "${RES}" "${NL}" >&2
+      printf "%b❌ Debug Log saved at  : %s %b%b" "${RED}" "${LOG_TRC}" "${RES}" "${NL}" >&2
-      printf "%s❌                   cat %s %s%s" "${RED}" "${LOG_TRC}" "${RES}" "${NL}" >&2
+      printf "%b❌                   cat %s %b%b" "${RED}" "${LOG_TRC}" "${RES}" "${NL}" >&2
     fi
     print_stacktrace
   fi

lib/0080_trap_int.sh

@@ -34,6 +34,10 @@ restart_dialog() {
 # Trap function to be called on 'SIGINT'.
 # Globals:
 #   ERR_TRAPPED_SIG_INT
+#   GRE
+#   NL
+#   RED
+#   RES
 #   VAR_IN_DIALOG_WR
 # Arguments:
 #   None
@@ -51,11 +55,11 @@ trap_int() {
 
   declare answer
   if ! read -r -t 16 -p $'\n\e[93mCISS.debian.installer caught an INT.\e[0m \e[92mDo you want to abort the Installer? (y/N) \e[0m' answer; then
-    printf "\e[92mCISS.debian.installer caught an INT. No User confirmation after 16 seconds. Proceeding with Installer. \e[0m\n" >&2
+    printf "%bCISS.debian.installer caught an INT. No User confirmation after 16 seconds. Proceeding with Installer. %b%b" "${GRE}" "${RES}" "${NL}" >&2
-    if [[ "${var_helper_dialog}" == box ]]; then
+    if [[ "${var_helper_dialog}" == "box" ]]; then
       restart_dialog "${var_helper_dialog}"
       return 0
-    elif [[ "${var_helper_dialog}" == gauge ]]; then
+    elif [[ "${var_helper_dialog}" == "gauge" ]]; then
       restart_dialog "${var_helper_dialog}"
       return 0
     else
@@ -66,11 +70,11 @@ trap_int() {
 
   case "${answer,,}" in
     y|yes)
-      printf "\e[91mCISS.debian.installer caught an INT. SIGINT confirmed by User, exiting Installer. \e[0m\n" >&2
+      printf "%bCISS.debian.installer caught an INT. SIGINT confirmed by User, exiting Installer. %b%b" "${RED}" "${RES}" "${NL}" >&2
       exit "${ERR_TRAPPED_SIG_INT}"
       ;;
     *)
-      printf "\e[92mCISS.debian.installer caught an INT. SIGINT NOT confirmed by User, proceeding with Installer. \e[0m\n" >&2
+      printf "%bCISS.debian.installer caught an INT. SIGINT NOT confirmed by User, proceeding with Installer. %b%b" "${GRE}" "${RES}" "${NL}" >&2
       if [[ "${var_helper_dialog}" == box ]]; then
         restart_dialog "${var_helper_dialog}"
         return 0

lib/0090_clean_up.sh

@@ -22,6 +22,8 @@ guard_sourcing
 #   VAR_NOTES
 # Arguments:
 #   1: ${var_trap_on_exit_code} of trap_exit()
+# Returns:
+#   0: On success
 #######################################
 clean_up() {
   declare var_clean_exit_code="$1"
@@ -36,5 +38,6 @@ clean_up() {
   ### Remove the lockfile artifact.
   rm -f /run/lock/ciss_debian_installer.lock
   if (( var_clean_exit_code == 0 )); then rm -f -- "${LOG_ERR}"; fi
+  return 0
 }
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

lib/0100_arg_mismatch.sh

@@ -32,7 +32,7 @@ arg_mismatch() {
       box|gauge) "dialog_${VAR_IN_DIALOG_WR}_cleaner" ;;
     esac
   fi
-  printf "%s❌ Error: '%s'. %s%s" "${RED}" "${1}" "${RES}" "${NL}" >&2
+  printf "%b❌ Error: '%s'. %b%b" "${RED}" "${1}" "${RES}" "${NL}" >&2
   read -pr $'\e[92m✅ Press \'ENTER\' to exit the script ... \e[0m'
   exit "${ERR_ARG_MISMATCH}"
 }

lib/0101_arg_sanitizer.sh

@@ -47,18 +47,20 @@ sanitize_arg() {
     disallowed_ctrl=$(printf '%s' "${input}" | sed -n 's/[^[:cntrl:]]//gp' | sed $'s/./&\\n/g' \
       | while read -r c; do printf "%02X " "'${c}"; done)
     {
-      printf "❌ Control character   : '%s'. %s" "${disallowed_ctrl}" "${NL}"
+      printf "❌ Control character   : '%s'. %b" "${disallowed_ctrl}" "${NL}"
-      printf "❌         in argument : '%s'. %s" "${input}" "${NL}"
+      printf "❌         in argument : '%s'. %b" "${input}" "${NL}"
-      printf "❌ Allowed Characters  : 'a-z A-Z 0-9 . _ / = [ ] : \" - + space' %s" "${NL}"
+      printf "❌ Allowed Characters  : 'a-z A-Z 0-9 . _ / = [ ] : \" - + space' %b" "${NL}"
-      printf "%s" "${NL}"
+      printf "%b" "${NL}"
     } >> "${LOG_ERR}"
+
     case "${VAR_IN_DIALOG_WR}" in
       box   ) dialog_box_cleaner   ;;
       gauge ) dialog_gauge_cleaner ;;
     esac
-    printf "%s❌ Control character   : '%s'. %s%s" "${RED}" "${disallowed_ctrl}" "${RES}" "${NL}" >&2
+
-    printf "%s❌         in argument : '%s'. %s%s" "${RED}" "${input}" "${RES}" "${NL}" >&2
+    printf "%b❌ Control character   : '%s'. %b%b" "${RED}" "${disallowed_ctrl}" "${RES}" "${NL}" >&2
-    printf "%s❌ Allowed Characters  : 'a-z A-Z 0-9 . _ / = [ ] : \" - + space' %s%s" "${RED}" "${RES}" "${NL}" >&2
+    printf "%b❌         in argument : '%s'. %b%b" "${RED}" "${input}" "${RES}" "${NL}" >&2
+    printf "%b❌ Allowed Characters  : 'a-z A-Z 0-9 . _ / = [ ] : \" - + space' %b%b" "${RED}" "${RES}" "${NL}" >&2
     # shellcheck disable=SC2162
     read -p  $'\e[92m✅ Press \'ENTER\' to exit the script ... \e[0m'
     exit "${ERR_UNSAFE_CHARACTER}"
@@ -71,18 +73,18 @@ sanitize_arg() {
   disallowed=$(printf '%s' "${input}" | tr -d "${allowed}")
   if [[ -n ${disallowed} ]]; then
     {
-      printf "❌ Invalid character   : '%s'. %s" "${disallowed//?/& }" "${NL}"
+      printf "❌ Invalid character   : '%s'. %b" "${disallowed//?/& }" "${NL}"
-      printf "❌         in argument : '%s'. %s" "${input}" "${NL}"
+      printf "❌         in argument : '%s'. %b" "${input}" "${NL}"
-      printf "❌ Allowed Characters  : 'a-z A-Z 0-9 . _ / = [ ] : \" - + space' %s" "${NL}"
+      printf "❌ Allowed Characters  : 'a-z A-Z 0-9 . _ / = [ ] : \" - + space' %b" "${NL}"
-      printf "%s" "${NL}"
+      printf "%b" "${NL}"
     } >> "${LOG_ERR}"
     case "${VAR_IN_DIALOG_WR}" in
       box   ) dialog_box_cleaner   ;;
       gauge ) dialog_gauge_cleaner ;;
     esac
-    printf "%s❌ Invalid character   : '%s'. %s%s" "${RED}" "${disallowed//?/& }" "${RES}" "${NL}" >&2
+    printf "%s❌ Invalid character   : '%s'. %b%b" "${RED}" "${disallowed//?/& }" "${RES}" "${NL}" >&2
-    printf "%s❌         in argument : '%s'. %s%s" "${RED}" "${input}" "${RES}" "${NL}" >&2
+    printf "%b❌         in argument : '%s'. %b%b" "${RED}" "${input}" "${RES}" "${NL}" >&2
-    printf "%s❌ Allowed Characters  : 'a-z A-Z 0-9 . _ / = [ ] : \" - + space' %s%s" "${RED}" "${RES}" "${NL}" >&2
+    printf "%b❌ Allowed Characters  : 'a-z A-Z 0-9 . _ / = [ ] : \" - + space' %b%b" "${RED}" "${RES}" "${NL}" >&2
     # shellcheck disable=SC2162
     read -p  $'\e[92m✅ Press \'ENTER\' to exit the script ... \e[0m'
     exit "${ERR_UNSAFE_CHARACTER}"

lib/0103_arg_priority_check.sh

@@ -30,14 +30,14 @@ arg_priority_check() {
   if [[ -n "${VAR_PRIORITY}" ]]; then
     renice "${VAR_PRIORITY}" -p "$$" > /dev/null 2>&1
     var=$(ps -o ni= -p $$) > /dev/null 2>&1
-    do_log "info" "file_only" "New renice value: '${var}'."
+    do_log "info" "tty" "New renice value: '${var}'."
   fi
 
   ### Check if ionice PRIORITY is set and adjust ionice priority.
   if [[ -n "${VAR_REIONICE_CLASS}" ]]; then
     ionice -c"${VAR_REIONICE_CLASS}" -n"${VAR_REIONICE_PRIORITY}" -p "$$"
     var=$(ionice -p $$) > /dev/null 2>&1
-    do_log "info" "file_only" "New ionice value: '${var}'."
+    do_log "info" "tty" "New ionice value: '${var}'."
   fi
 }
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

lib/0104_arg_nuke_converter.sh

@@ -37,6 +37,7 @@ nuke_passphrase() {
   ### Turn on tracing again
   [[ "${VAR_DEBUG_TRACE,,}" == "true" ]] && set -x
 
+  # shellcheck disable=SC2312
   var_salt=$(tr -dc 'A-Za-z0-9' < /dev/random | head -c 16)
 
   ### No tracing for security reasons

lib/0200_dialog_helper.sh

@@ -10,6 +10,8 @@
 # SPDX-PackageName: CISS.debian.installer
 # SPDX-Security-Contact: security@coresecret.eu
 
+guard_sourcing
+
 #######################################
 # Terminal cleaner for Dialog Wrappers.
 # Arguments:

meta_loader_cuv.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.installer
+# SPDX-Security-Contact: security@coresecret.eu
+
+### SOURCING CONTACT, USAGE, VERSION MODULES FOR RAPID REACTION.
+
+. ./lib/0000_usage.sh
+. ./lib/0001_contact.sh
+. ./lib/0002_version.sh
+. ./var/early.var.sh
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

meta_loader_early.sh

@@ -10,6 +10,10 @@
 # SPDX-PackageName: CISS.debian.installer
 # SPDX-Security-Contact: security@coresecret.eu
 
+### SOURCING PRELIMINARY FUNCTIONS AND VARIABLES IN CASE OF FAILED PRELIMINARY CHECKS.
+
+. ./lib/0010_guard_sourcing.sh
+. ./lib/0010_source_guard.sh
 . ./var/color.var.sh
 . ./var/errors.var.sh
 

meta_loader_func.sh

@@ -14,7 +14,6 @@
 . ./func/helper/1080_helper_chroot.sh
 . ./func/helper/1081_helper_grub.sh
 . ./func/helper/1082_helper_modules.sh
-. ./func/helper/1083_helper_print.sh
 . ./func/helper/1084_helper_sanitizer.sh
 . ./func/helper/1085_helper_secure_dl.sh
 . ./func/helper/1086_helper_yaml.sh

meta_loader_lib.sh

@@ -10,29 +10,30 @@
 # SPDX-PackageName: CISS.debian.installer
 # SPDX-Security-Contact: security@coresecret.eu
 
-. ./lib/0011_guard_safe_exec.sh
+source_guard "./lib/0011_guard_safe_exec.sh"
-. ./lib/0020_gen_dir_files.sh
+source_guard "./lib/0020_gen_dir_files.sh"
-. ./lib/0025_logging_modules.sh
+source_guard "./lib/0024_logging_helper.sh"
-. ./lib/0030_check_pkgs.sh
+source_guard "./lib/0025_logging_modules.sh"
-. ./lib/0031_check_git.sh
+source_guard "./lib/0030_check_pkgs.sh"
-. ./lib/0040_check_var.sh
+source_guard "./lib/0031_check_git.sh"
-. ./lib/0050_debug_pre_scan.sh
+source_guard "./lib/0040_check_var.sh"
-. ./lib/0051_debug_var_dump.sh
+source_guard "./lib/0050_debug_pre_scan.sh"
-. ./lib/0052_debug_trace.sh
+source_guard "./lib/0051_debug_var_dump.sh"
-. ./lib/0053_debug_trace_header.sh
+source_guard "./lib/0052_debug_trace.sh"
-. ./lib/0054_debug_trap.sh
+source_guard "./lib/0053_debug_trace_header.sh"
-. ./lib/0055_debug_trap_header.sh
+source_guard "./lib/0054_debug_trap.sh"
-. ./lib/0060_trap_err.sh
+source_guard "./lib/0055_debug_trap_header.sh"
-. ./lib/0070_trap_exit.sh
+source_guard "./lib/0060_trap_err.sh"
-. ./lib/0080_trap_int.sh
+source_guard "./lib/0070_trap_exit.sh"
-. ./lib/0090_clean_up.sh
+source_guard "./lib/0080_trap_int.sh"
-. ./lib/0100_arg_mismatch.sh
+source_guard "./lib/0090_clean_up.sh"
-. ./lib/0101_arg_sanitizer.sh
+source_guard "./lib/0100_arg_mismatch.sh"
-. ./lib/0102_arg_parser.sh
+source_guard "./lib/0101_arg_sanitizer.sh"
-. ./lib/0103_arg_priority_check.sh
+source_guard "./lib/0102_arg_parser.sh"
-. ./lib/0104_arg_nuke_converter.sh
+source_guard "./lib/0103_arg_priority_check.sh"
-#. ./lib/0110_check_kernel.sh
+source_guard "./lib/0104_arg_nuke_converter.sh"
-#. ./lib/0120_check_provider.sh
+#source_guard "./lib/0110_check_kernel.sh"
-. ./lib/0200_dialog_helper.sh
+#source_guard "./lib/0120_check_provider.sh"
+source_guard "./lib/0200_dialog_helper.sh"
 
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

meta_loader_var.sh

@@ -10,10 +10,9 @@
 # SPDX-PackageName: CISS.debian.installer
 # SPDX-Security-Contact: security@coresecret.eu
 
-. ./var/bash.var.sh
+source_guard "./var/bash.var.sh"
-source_guard "./var/color.var.sh"
+source_guard "./var/errors.var.sh"
-. ./var/errors.var.sh
+source_guard "./var/global.var.sh"
-. ./var/global.var.sh
+source_guard "./var/terminal.var.sh"
-. ./var/terminal.var.sh
 
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

var/bash.var.sh

@@ -10,6 +10,8 @@
 # SPDX-PackageName: CISS.debian.installer
 # SPDX-Security-Contact: security@coresecret.eu
 
+guard_sourcing
+
 ### For all options see https://www.gnu.org/software/bash/manual/bash.html#The-Set-Builtin
 set -o errexit   # Exit script when a command exits with non-zero status, the same as "set -e".
 set -o errtrace  # Any traps on ERR are inherited in a subshell environment, the same as "set -E".

var/color.var.sh

@@ -12,6 +12,8 @@
 
 guard_sourcing
 
+### Definition of color variables.
+
 declare -grx BLA='\e[90m' # Beautiful black for the techno fans.
 declare -grx RED='\e[91m' # Bright red.
 declare -grx GRE='\e[92m' # Vibrant green.

var/early.var.sh

@@ -10,14 +10,16 @@
 # SPDX-PackageName: CISS.debian.installer
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Definition of MUST set early Variables
+guard_sourcing
+
+### Definition of MUST set early variables.
 
-# shellcheck disable=SC2155
 declare -ag ARY_PARAM_ARRAY=("$@")
 declare -grx VAR_PARAM_COUNT="$#"
 declare -grx VAR_PARAM_STRNG="$*"
 declare -grx VAR_CONTACT="security@coresecret.eu"
 declare -grx VAR_VERSION="Master V8.00.000.2025.06.17"
+# shellcheck disable=SC2155
 declare -grx VAR_SYSTEM="$(uname -a)"
 declare -gx VAR_ARG_SANITIZED=""
 declare -gx VAR_AUTO_INSTALL="false"

var/errors.var.sh

@@ -10,7 +10,10 @@
 # SPDX-PackageName: CISS.debian.installer
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Definition of error codes
+guard_sourcing
+
+### Definition of error codes.
+
 declare -girx ERR_UNSUPPORTED_BASH=255  # The Bash is not supported.
 declare -girx ERR_USER_IS_NOT_ROOT=254  # Not running as root.
 declare -girx ERR_UNSAFE_CHARACTER=253  # An invalid character has been used.
@@ -47,7 +50,7 @@ declare -girx ERR_PATH_NOT_VALID=223    # Specific path is not existing.
 declare -girx ERR_READ_NUKE_FILE=222    # Error reading Luks Nuke password file.
 declare -girx ERR_READ_GRUB_FILE=221    # Error reading Grub password file.
 
-### Definition of error trap vars
+### Definition of error trap vars.
 declare -gx ERRCODE=""                  # = $?                   = $1 = ERRCODE
 declare -gx ERRSCRT=""                  # = ${BASH_SOURCE[0]}    = $2 = ERRSCRT
 declare -gx ERRLINE=""                  # = ${LINENO}            = $3 = ERRLINE

var/global.var.sh

@@ -10,17 +10,24 @@
 # SPDX-PackageName: CISS.debian.installer
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Definition of MUST set global Variables.
+guard_sourcing
+
+### Definition of MUST set global variables.
 
 # shellcheck disable=SC2155
 declare -grx VAR_KERNEL_INF=$(mktemp var_kernel_inf.XXXXXXXX)
+# shellcheck disable=SC2155
 declare -grx VAR_KERNEL_TMP=$(mktemp var_kernel_tmp.XXXXXXXX)
+# shellcheck disable=SC2155
 declare -grx VAR_KERNEL_SRT=$(mktemp var_kernel_srt.XXXXXXXX)
+# shellcheck disable=SC2155
 declare -grx VAR_NOTES=$(mktemp var_notes.XXXXXXXX)
 declare -grx VAR_SETUP_CONF="preseed.yaml"
 declare -grx VAR_SETUP_PART="partitioning.yaml"
 declare -grx VAR_SETUP_FILE="${0##*/}"                                  # 'setup.sh'
+# shellcheck disable=SC2155
 declare -grx VAR_SETUP_PATH="$(cd "$(dirname "${0}")" && pwd)"          # '/opt/git/CISS.debian.installer'
+# shellcheck disable=SC2155
 declare -grx VAR_SETUP_FULL="$(cd "$(dirname "${0}")" && pwd)/${0##*/}" # '/opt/git/CISS.debian.installer/setup.sh'
 
 ### Initialize variables of different directories.

var/terminal.var.sh

@@ -10,8 +10,13 @@
 # SPDX-PackageName: CISS.debian.installer
 # SPDX-Security-Contact: security@coresecret.eu
 
+guard_sourcing
+
+### Definition of terminal variables.
+
 # shellcheck disable=SC2155
 declare -gix ROWS=$(tput lines)
+# shellcheck disable=SC2155
 declare -gix COLS=$(tput cols)
 declare -gix ROWS_USE=$(($(tput lines) - 8))
 declare -gix COLS_USE=$(($(tput cols) - 8))