Fix #1652: allow bb.edn to be empty

CHANGELOG.md

@@ -14,6 +14,7 @@ A preview of the next release can be installed from
 - Allow `catch` to be used as var name
 - [#1646](https://github.com/babashka/babashka/issues/1646): command-line-args are dropped when file exists with same name
 - [#1645](https://github.com/babashka/babashka/issues/1645): Support for clojure.lang.LongRange
+- [#1652](https://github.com/babashka/babashka/issues/1652): allow `bb.edn` to be empty
 
 ## 1.3.186 (2023-11-02)
 

fs

@@ -1 +1 @@
-Subproject commit 40fcceb22b9728fee1c2ce0e58e390e5fe23f2cd
+Subproject commit aed36f10bda703018a30f8971ebe2c1c3db76726

src/babashka/main.clj

@@ -1113,7 +1113,7 @@ Use bb run --help to show this help output.
                       (>= patch-current patch-min)))))))
 
 (defn read-bb-edn [string]
-  (try (edn/read-string {:default tagged-literal} string)
+  (try (edn/read-string {:default tagged-literal :eof nil} string)
        (catch java.lang.RuntimeException e
          (if (re-find #"No dispatch macro for: \"" (.getMessage e))
            (throw (ex-info "Invalid regex literal found in EDN config, use re-pattern instead" {}))

test/babashka/bb_edn_test.clj

@@ -533,6 +533,9 @@ even more stuff here\"
 (deftest non-existing-tasks-in-run-gives-exit-code-1
   (is (thrown? Exception (bb "-Sdeps" "{:tasks {foo {:task (run (quote bar))}}}" "foo"))))
 
+(deftest empty-bb-edn-test
+  (is (= 6 (bb "-Sdeps" "" "-e" "(+ 1 2 3)"))))
+
 (deftest warning-on-override-task
   (when-not tu/native?
     (binding [*out* *err*]