From b54fad92cda396936ab1e8f5b6d5138f7ed8a8e7 Mon Sep 17 00:00:00 2001
From: Jechol Lee <mr.jechol@gmail.com>
Date: Sun, 18 Oct 2020 12:09:03 +0900
Subject: [PATCH] Support pre-fetched deps for nix.

---
 bootstrap | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/bootstrap b/bootstrap
index 358df58d..c338624f 100755
--- a/bootstrap
+++ b/bootstrap
@@ -20,8 +20,10 @@ main(_) ->
     %% cause weird failures when compilers get modified between releases.
     rm_rf("_build/prod"),
     %% The same pattern happens with default/ as well, particularly when
-    %% developig new things.
-    rm_rf("_build/default"),
+    %% developing new things. 
+    %% Keep other deps in default/lib for build environments like Nix
+    %% where internet access is disabled that deps are not downloadable.
+    rm_rf("_build/default/lib/rebar"),
 
     %% We fetch a few deps from hex for boostraping,
     %% so we must compile r3_safe_erl_term.xrl which