From a7b1a70e422a93f3e43fa492e1bed80e21abb83c Mon Sep 17 00:00:00 2001
From: Ulf Wiger <ulf@wiger.net>
Date: Thu, 31 Oct 2019 15:26:25 +0100
Subject: [PATCH] Filter rebar.lock if disabling cuckoo

---
 rebar.lock.script | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 rebar.lock.script

diff --git a/rebar.lock.script b/rebar.lock.script
new file mode 100644
index 0000000..534e836
--- /dev/null
+++ b/rebar.lock.script
@@ -0,0 +1,29 @@
+%% -*- erlang -*-
+
+FilterCheck = (os:getenv("AE_DISABLE_CUCKOO") =/= false),
+RemoveApps = [<<"aecuckoo">>, <<"aecuckooprebuilt">>],
+
+Filter = fun(Apps) ->
+                 case FilterCheck of
+                     false ->
+                         Apps;
+                     true ->
+                         lists:foldl(
+                           fun(App, Acc) ->
+                                   lists:keydelete(App, 1, Acc)
+                           end,
+                           Apps,
+                           RemoveApps
+                          )
+                 end
+         end,
+
+case CONFIG of
+    [] ->
+        %% no lock file present, usually during unlock/upgrade
+        CONFIG;
+    [{Version, Deps}, [{pkg_hash, Pkgs}]] ->
+        Deps1 = Filter(Deps),
+        Pkgs1 = Filter(Pkgs),
+        [{Version, Deps1}, [{pkg_hash, Pkgs1}]]
+end.