V8.03.920.2025.08.07

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

ciss_live_builder.sh

@@ -13,34 +13,71 @@
 ### Contributions so far see ./docs/CREDITS.md
 
 ### WHY BASH?
-# Ease of installation.
-# No compiling or installing gems, CPAN modules, pip packages, etc.
-# Simple to use and read. Clear syntax and straightforward output interpretation.
-# Built-in power.
-# Pattern matching, line processing, and regular expression support are available natively,
-# no external binaries required.
-# Cross-platform consistency.
-# '/bin/bash' is the default shell on most Linux distributions, ensuring scripts run unmodified across systems.
-# macOS compatibility.
-# Since macOS Catalina (10.15), the default login shell has been zsh, but bash remains available at '/bin/bash'.
-# Windows support.
-# You can use bash via WSL, MSYS2, or Cygwin on Windows systems.
+# Ease of installation. No compiling or installing gems, CPAN modules, pip packages, etc. Simple to use and read. Clear syntax
+# and straightforward output interpretation. Built-in power. Pattern matching, line processing, and regular expression support
+# are available natively, no external binaries required. Cross-platform consistency. '/bin/bash' is the default shell on most
+# Linux distributions, ensuring scripts run unmodified across systems. macOS compatibility. Since macOS Catalina (10.15), the
+# default login shell has been zsh, but bash remains available at '/bin/bash'. Windows support. You can use bash via WSL, MSYS2,
+# or Cygwin on Windows systems.
 
-### Preliminary checks
+### PRELIMINARY CHECKS.
+### No ash, dash, ksh, sh.
 # shellcheck disable=2292
 [ -z "${BASH_VERSINFO[0]}" ] && {
-  . ./var/global.var.sh; printf "\e[91m❌ Please make sure you are using 'bash'! Bye... \e[0m\n" >&2; exit "${ERR_UNSPPTBASH}"; }
+  . ./var/global.var.sh
+  printf "\e[91m❌ Please make sure you are using 'bash'! Bye... \e[0m\n" >&2
+  exit "${ERR_UNSPPTBASH}"
+}
+
+### No zsh.
+[[ -n "${ZSH_VERSION:-}" ]] && {
+  . ./var/global.var.sh
+  printf "\e[91m❌ Please make sure you are using 'bash'! Bye... \e[0m\n" >&2
+  exit "${ERR_UNSPPTBASH}"
+}
+
+### Not root.
 [[ ${EUID} -ne 0 ]] && {
-  . ./var/global.var.sh; printf "\e[91m❌ Please make sure you are 'root'! Bye... \e[0m\n" >&2; exit "${ERR_NOT_USER_0}"; }
+  . ./var/global.var.sh
+  printf "\e[91m❌ Please make sure you are 'root'! Bye... \e[0m\n" >&2
+  exit "${ERR_NOT_USER_0}"
+}
+
+### Not called by sh.
 # shellcheck disable=2312
 [[ $(kill -l | grep -c SIG) -eq 0 ]] && {
-  . ./var/global.var.sh; printf "\e[91m❌ Please make sure you are calling the script without leading 'sh'! Bye... \e[0m\n" >&2; exit "${ERR_UNSPPTBASH}"; }
+  . ./var/global.var.sh
+  printf "\e[91m❌ Please make sure you are calling the script without leading 'sh'! Bye... \e[0m\n" >&2
+  exit "${ERR_UNSPPTBASH}"
+}
+
+### Not sourced.
+[[ "${BASH_SOURCE[0]}" != "$0" ]] && {
+  . ./var/global.var.sh
+  printf "\e[91m❌ This script must be executed, not sourced. Please run '%s' directly! Bye... \e[0m\n" "$0" >&2
+  exit "${ERR_UNSPPTBASH}"
+}
+
+### Minimum Bash version 5.
 [[ ${BASH_VERSINFO[0]} -lt 5 ]] && {
-  . ./var/global.var.sh; printf "\e[91m❌ Minimum requirement is bash 5.1. You are using '%s'! Bye... \e[0m\n" "${BASH_VERSION}" >&2; exit "${ERR_UNSPPTBASH}"; }
+  . ./var/global.var.sh
+  printf "\e[91m❌ Minimum requirement is bash 5.1. You are using '%s'! Bye... \e[0m\n" "${BASH_VERSION}" >&2
+  exit "${ERR_UNSPPTBASH}"
+}
+
+### Minimum Bash version 5.1.
 [[ ${BASH_VERSINFO[0]} -le 5 ]] && [[ ${BASH_VERSINFO[1]} -le 1 ]] && {
-  . ./var/global.var.sh; printf "\e[91m❌ Minimum requirement is bash 5.1. You are using '%s'! Bye... \e[0m\n" "${BASH_VERSION}" >&2; exit "${ERR_UNSPPTBASH}"; }
+  . ./var/global.var.sh
+  printf "\e[91m❌ Minimum requirement is bash 5.1. You are using '%s'! Bye... \e[0m\n" "${BASH_VERSION}" >&2
+  exit "${ERR_UNSPPTBASH}"
+}
+
+### No arguments.
 [[ ${#} -eq 0 ]] && {
-  . ./lib/lib_usage.sh; usage; exit 1; }
+  . ./lib/lib_usage.sh
+  usage
+  exit 1
+}
 
 ### SOURCING MUST SET EARLY VARIABLES, GUARD_SOURCING(), CHECK_GIT()
 . ./var/early.var.sh
@@ -49,12 +86,12 @@
 
 ### CHECK FOR CONTACT, HELP, VERSION STRING, AND XTRACE DEBUG
 for arg in "$@"; do case "${arg,,}" in -c|--contact) . ./lib/lib_contact.sh; contact; exit 0;; esac; done
-for arg in "$@"; do case "${arg,,}" in -h|--help)    . ./lib/lib_usage.sh; usage; exit 0;; esac; done
+for arg in "$@"; do case "${arg,,}" in -h|--help)    . ./lib/lib_usage.sh  ; usage  ; exit 0;; esac; done
 for arg in "$@"; do case "${arg,,}" in -v|--version) . ./lib/lib_version.sh; version; exit 0;; esac; done
 
 ### ALL CHECKS DONE. READY TO START THE SCRIPT
 check_git
-for arg in "$@"; do case "${arg,,}" in -d|--debug)   . ./meta_sources_debug.sh; debugger "${@}";; esac; done
+for arg in "$@"; do case "${arg,,}" in -d|--debug) . ./meta_sources_debug.sh; debugger "${@}";; esac; done
 declare -gx VAR_SETUP="true"
 
 ### SOURCING VARIABLES