Zsh: die(): return instead of exit if interactive

.config/zsh/functions/die

@@ -1,7 +1,8 @@
 #!/usr/bin/env zsh
 # Exit with the error code of the last command and an optional error message in
 # bold pink. The error code is overridden by the first argument, if it is a
-# number. Put this in ${fpath} and load it with `autoload -U die`.
+# number. Will return instead of exit when the shell is interactive.
+# Put this in ${fpath} and load it with `autoload -U die`.
 
 local errorcode=${?}
 if [[ -v 1 && ${1} =~ '^[0-9]+$' ]]; then
@@ -15,4 +16,5 @@ if [[ -v 1 ]]; then
     print -Pnu2 "%f%b"
 fi
 
+[[ -o INTERACTIVE ]] && return ${errorcode}
 exit ${errorcode}