✍ Updates hr to allow usage as an alias

utils/hr.sh

@@ -3,33 +3,44 @@
 # Simple script to output a solid line in the terminal
 # Useful for marking the end of a task in your bash log
 # Inspired by @LuRsT's script of the same name
-# Licensed under MIT (C) Alicia Sykes, 2021
+# Can be called directly, or source'd in *rc file
+# Licensed under MIT, (C) Alicia Sykes 2022
 
 # Determine width of terminal
-COLS="$(tput cols)"
-if (( COLS <= 0 )) ; then
-    COLS="${COLUMNS:-80}"
+hr_col_count="$(tput cols)"
+if [ ! -n "${hr_col_count+set}" ] || [ $hr_col_count -lt 1 ]; then
+    hr_col_count="${COLUMNS:-80}"
 fi
 
 # Colors
-CYAN_BG="\u001b[46;1m"
-RESET="\u001b[0m"
+hr_color="${hr_color:=\u001b[46;1m}"
+hr_reset="\u001b[0m"
 
 # Prints the HR line
-hr() {
+hr_draw_char() {
     local CHAR="$1"
     local LINE=''
-    LINE=$(printf "%*s" "$COLS")
+    LINE=$(printf "%*s" "$hr_col_count")
     LINE="${LINE// /${CHAR}}"
-    printf "${CYAN_BG}${LINE:0:${COLS}}${RESET}"
+    printf "${hr_color}${LINE:0:${hr_col_count}}${hr_reset}"
 }
 
 # Passes param and calls hr()
-start() {
+hr() {
     for WORD in "${@:--}"; do
-        hr "$WORD"
+        hr_draw_char "$WORD"
     done
 }
 
-# Catch errors, and call start
-[ "$0" == "$BASH_SOURCE" ] && start "$@"
+# Determine if file is being run directly or sourced
+([[ -n $ZSH_EVAL_CONTEXT && $ZSH_EVAL_CONTEXT =~ :file$ ]] || 
+ [[ -n $KSH_VERSION && $(cd "$(dirname -- "$0")" &&
+    printf '%s' "${PWD%/}/")$(basename -- "$0") != "${.sh.file}" ]] || 
+ [[ -n $BASH_VERSION ]] && (return 0 2>/dev/null)) && sourced=1 || sourced=0
+
+# Either instantiate immediatley, or set alias for later
+if [ $sourced -eq 0 ]; then
+  [ "$0" == "$BASH_SOURCE" ] && hr "$@"
+else
+  export alias hr='hr'
+fi