V8.00.000.2025.06.17

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

ciss_debian_installer.sh

@@ -30,7 +30,7 @@ declare -grx VAR_SETUP_PATH="$(cd "$(dirname "${0}")" && pwd)"          # '/opt/
 declare -grx VAR_SETUP_FULL="$(cd "$(dirname "${0}")" && pwd)/${0##*/}" # '/opt/git/CISS.debian.installer/setup.sh'
 
 ### PRELIMINARY CHECKS.
-  ### No ash, dash, ksh, sh, zsh.
+  ### No ash, dash, ksh, sh.
   # shellcheck disable=2292
   [ -z "${BASH_VERSINFO[0]}" ] && {
     . ./meta_loader_early.sh
@@ -38,6 +38,13 @@ declare -grx VAR_SETUP_FULL="$(cd "$(dirname "${0}")" && pwd)/${0##*/}" # '/opt/
     exit "${ERR_UNSUPPORTED_BASH}"
     }
 
+  ### No zsh.
+  [[ -n "${ZSH_VERSION:-}" ]] && {
+    . ./meta_loader_early.sh
+    printf "%b❌ Please make sure you are using 'bash'! Bye... %b%b" "${RED}" "${RES}" "${NL}" >&2
+    exit "${ERR_UNSUPPORTED_BASH}"
+    }
+
   ### Not root.
   [[ ${EUID} -ne 0 ]] && {
     . ./meta_loader_early.sh
@@ -87,8 +94,8 @@ for arg in "$@"; do case "${arg,,}" in -h|--help)    . ./meta_loader_cuv.sh; usa
 for arg in "$@"; 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
+. ./lib/0010_guard_sourcing.sh           # The function guard_sourcing MUST be present in each file to source.
+. ./lib/0010_source_guard.sh             # Wrapper for sourcing modules, libraries, variables.
 source_guard "./var/color.var.sh"
 source_guard "./var/early.var.sh"
 source_guard "./lib/0004_color_echo.sh"

lib/0002_usage.sh

@@ -45,12 +45,14 @@ usage() {
     echo -e "\e[97m${var_header} \e[0m"
     echo
     echo -e "\e[92mCISS.debian.installer from https://git.coresecret.dev/msw \e[0m"
-    echo -e "\e[92m"${VAR_VERSION}" \e[0m"
+    echo -e "\e[92m${VAR_VERSION} \e[0m"
     echo -e "\e[92mA powerful Debian installer for setting up a hardened Debian environment. \e[0m"
     echo
     echo -e "\e[97m(c) Marc S. Weidner, 2018 - 2025 \e[0m"
     echo -e "\e[97m(p) Centurion Press, 2024 - 2025 \e[0m"
     echo
+    echo -e "\e[91mUse only in trusted, non-production environments unless code audited! \e[0m"
+    echo
     echo -e "\e[97m${0} <option>, where <option> is one or more of: \e[0m"
     echo
     echo -e "\e[97m  --help, -h \e[0m"
@@ -72,7 +74,7 @@ usage() {
     echo "    - /tmp/.ciss/log/ciss_debian_installer_$$_debug.log"
     echo "    - /tmp/.ciss/log/ciss_debian_installer_$$_trace.log"
     echo "    - /tmp/.ciss/log/ciss_debian_installer_$$_var.log"
-     echo
+    echo
     echo -e "\e[97m  --log, -l <LEVEL> \e[0m"
     echo "    This changes the default log level from 'info' to one of the following values:"
     echo "      debug"