Proper error when the client starts with something less than 1.12

Author: JarrodCTaylor

client/src/clojure_cli/repl/client.clj

@@ -1,5 +1,6 @@
 (ns clojure-cli.repl.client
   (:require
+    [clojure-cli.repl.version-check] ;; keep first
     [clojure.edn :as edn]
     [clojure.string :as str]
     [clojure.tools.deps.config :as dc]

client/src/clojure_cli/repl/version_check.clj

@@ -0,0 +1,5 @@
+(ns clojure-cli.repl.version-check)
+
+(when (< (:minor *clojure-version*) 12)
+  (println "clojure-cli.repl client requires Clojure 1.12 or later, started with" (clojure-version))
+  (System/exit 1))