lib/cliver/detector.rb in cliver-0.2.0 vs lib/cliver/detector.rb in cliver-0.2.1

@@ -39,9 +39,16 @@
     # @param executable_path [String] - the path to the executable to test
     # @return [String] - should be contain {Gem::Version}-parsable
     #                    version number.
     def detect_version(executable_path)
       output = shell_out_and_capture version_command(executable_path).shelljoin
+      if $?.exitstatus == 127
+        raise Cliver::Dependency::NotFound.new(
+            "Could not find an executable at given path '#{executable_path}'." +
+            "If this path was not specified explicitly, it is probably a " +
+            "bug in [Cliver](https://github.com/yaauie/cliver/issues)."
+          )
+      end
       output[version_pattern]
     end
 
     # This is the interface that any detector must have.
     # If not overridden, returns a proc that wraps #detect_version