chore: ehnance error messages

Author: krvital

src/aidbox_sdk/cli.clj

@@ -13,7 +13,7 @@
    ["-h" "--help"]])
 
 (def supported-commands #{"generate"})
-(def supported-languages #{"dotnet" "java" "typescript" "python"})
+(def supported-languages #{"dotnet"})
 
 (defn validate-args [args]
   (let [[command target-language input] args]
@@ -27,7 +27,7 @@
                  (str/join ", " supported-languages)))
 
       (nil? input)
-      (conj "Please provide input argument"))))
+      (conj "Please provide a source of fhir packages"))))
 
 (defn print-errors [errors]
   (binding [*out* *err*]

src/aidbox_sdk/schema.clj

@@ -107,10 +107,15 @@
   [{:keys [source]} opts]
   (let [extract-link (fn [package] (-> package :href))
         extract-name (fn [package] (str (:name package) "#" (:version package)))
-        fhir-packages (do
+        fhir-packages (try
                         (println "Downloading list of dependencies from:" source)
                         (-> (fetch-n-parse source opts)
-                            (skip-root-package)))]
+                            (skip-root-package))
+
+                        (catch Exception _
+                          (println
+                           "ERROR: Cannot download FHIR packages. You might have provided the wrong source or forgotten to provide an authentication token.")
+                          []))]
     (->> fhir-packages
          ;; TODO using pmap for side effects is questionable
          (pmap (fn [package]