From 6e9503c4f0232d6e8152b56a7037f22843e53959 Mon Sep 17 00:00:00 2001
From: Alexander Sedov <asedov@platbox.com>
Date: Tue, 11 Oct 2016 10:33:14 +0300
Subject: [PATCH] Rereading system configuration sets up persistent options if
 possible.

---
 src/rebar_utils.erl | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/rebar_utils.erl b/src/rebar_utils.erl
index aa9e2680..dc0bb423 100644
--- a/src/rebar_utils.erl
+++ b/src/rebar_utils.erl
@@ -414,8 +414,14 @@ user_agent() ->
     ?FMT("Rebar/~s (OTP/~s)", [Vsn, otp_release()]).
 
 reread_config(ConfigList) ->
+    SetEnv = case version_tuple(?MODULE:otp_release()) of
+        {X, _, _} when X =< 17 ->
+            fun application:set_env/3;
+        _ ->
+            fun (App, Key, Val) -> application:set_env(App, Key, Val, [{persistent, true}]) end
+    end,
     try
-        [application:set_env(Application, Key, Val)
+        [SetEnv(Application, Key, Val)
         || Config <- ConfigList,
            {Application, Items} <- Config,
            {Key, Val} <- Items]