Make function support normal lambda and runtime

Author: Nyholm

runtime/layers/function/bootstrap

@@ -3,9 +3,15 @@
 # Fail on error
 set -e
 
+# if USE_RUNTIME == true
+BOOTSTRAP = (${_HANDLER//:/ })[0]
+# else
+BOOTSTRAP = "/opt/bref/bootstrap.php"
+# fi
+
 while true
 do
     # We redirect stderr to stdout so that everything
     # written on the output ends up in Cloudwatch automatically
-    /opt/bin/php "/opt/bref/bootstrap.php" 2>&1
+    /opt/bin/php "${BOOTSTRAP}" 2>&1
 done