Improve bash prompt

marauder/default.nix

@@ -98,11 +98,14 @@
 
   programs.bash = {
     promptInit = ''
-      PROMPT_COLOR="1;31m"
-      ((UID)) && PROMPT_COLOR="1;32m"
-      BASE_PROMPT="💜\[\033[$PROMPT_COLOR\][\[\e]0;\u@\h: \w\a\]\u@\h:\w]\\$\[\033[0m\] "
-      BRANCH="\$(git branch --show-current 2>/dev/null)"
-      PS1="\n\[$(tput sc)\$([ -n "$BRANCH" ] && printf "%*s" $COLUMNS "$BRANCH")\$(tput rc)\]$BASE_PROMPT"
+      PS1="\[\e]0;\u@\h: \w\a\]" # window title
+      PS1+="\n"
+      PS1+="\$(printf \"%*s\" \$((\$COLUMNS + 9)) \"\[\e[1;33m\]\$(git branch --show-current 2>/dev/null)\")" # git branch
+      PS1+="\[\e[1G\]" # move cursor to beginning of line
+      PS1+="💜" # prompt symbol
+      PS1+="\[\033[1;$((UID ? 32 : 31))m\]" # prompt color
+      PS1+="[\u@\h:\w]\\$"
+      PS1+="\[\033[0m\] " # reset color
     '';
   };