From 0eb9ba8d771a2369d324427c57ad675cc7c5731a Mon Sep 17 00:00:00 2001
From: Tuncer Ayaz <tuncer.ayaz@gmail.com>
Date: Sun, 20 Aug 2017 19:14:29 +0000
Subject: Revert "Drop crypto app reliance"

---
 ebin/rebar.app      |  1 +
 rebar.config        |  3 +--
 src/rebar.erl       |  6 ++++++
 src/rebar_ct.erl    | 12 +++---------
 src/rebar_eunit.erl |  2 +-
 5 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/ebin/rebar.app b/ebin/rebar.app
index b4c8b5a..9449e1e 100644
--- a/ebin/rebar.app
+++ b/ebin/rebar.app
@@ -55,6 +55,7 @@
     stdlib,
     sasl,
     compiler,
+    crypto,
     syntax_tools,
     tools,
     eunit,
diff --git a/rebar.config b/rebar.config
index 6765415..eda5a2c 100644
--- a/rebar.config
+++ b/rebar.config
@@ -32,8 +32,7 @@
       - (\"diameter_dict_util\":\"parse\"/\"2\")
       - (\"erlang\":\"timestamp\"/\"0\")
       - (\"rebar_rnd\":\"seed\"/\"1\")
-      - (\"rebar_rnd\":\"uniform\"/\"0\")
-      - (\"rebar_rnd\":\"uniform\"/\"1\"))",
+      - (\"rebar_rnd\":\"uniform\"/\"0\"))",
          []}]}.
 
 {dialyzer,
diff --git a/src/rebar.erl b/src/rebar.erl
index c87e591..d35e492 100644
--- a/src/rebar.erl
+++ b/src/rebar.erl
@@ -205,6 +205,12 @@ profile(_Config, _Commands, Profiler) ->
     ?ABORT("Unsupported profiler: ~s~n", [Profiler]).
 
 run_aux(BaseConfig, Commands) ->
+    %% Make sure crypto is running
+    case crypto:start() of
+        ok -> ok;
+        {error,{already_started,crypto}} -> ok
+    end,
+
     %% Make sure memoization server is running
     case rmemo:start() of
         {ok, _} -> ok;
diff --git a/src/rebar_ct.erl b/src/rebar_ct.erl
index 892ae03..b27f661 100644
--- a/src/rebar_ct.erl
+++ b/src/rebar_ct.erl
@@ -237,7 +237,6 @@ make_cmd(TestDir, RawLogDir, Config) ->
     CodeDirs = [io_lib:format("\"~s\"", [Dir]) ||
                    Dir <- [EbinDir|NonLibCodeDirs]],
     CodePathString = string:join(CodeDirs, " "),
-    _ = rebar_rnd:seed({55, seconds(), 7331}),
     Cmd = case get_ct_specs(Config, search_ct_specs_from(Cwd, TestDir, Config)) of
               undefined ->
                   ?FMT("~s"
@@ -286,18 +285,13 @@ search_ct_specs_from(Cwd, TestDir, Config) ->
           Cwd
     end.
 
-seconds() ->
-    calendar:datetime_to_gregorian_seconds(calendar:universal_time()).
-
 build_name(Config) ->
     %% generate a unique name for our test node, we want
     %% to make sure the odds of name clashing are low
-    Secs = integer_to_list(seconds()),
-    Random = integer_to_list(rebar_rnd:uniform(1000000)),
-    PseudoUnique = Random ++ "N" ++ Secs,
+    Random = integer_to_list(crypto:rand_uniform(0, 10000)),
     case rebar_config:get_local(Config, ct_use_short_names, false) of
-        true -> "-sname test" ++ PseudoUnique;
-        false -> " -name test" ++ PseudoUnique ++ "@" ++ net_adm:localhost()
+        true -> "-sname test" ++ Random;
+        false -> " -name test" ++ Random ++ "@" ++ net_adm:localhost()
     end.
 
 get_extra_params(Config) ->
diff --git a/src/rebar_eunit.erl b/src/rebar_eunit.erl
index 538f88b..ebf76bc 100644
--- a/src/rebar_eunit.erl
+++ b/src/rebar_eunit.erl
@@ -279,7 +279,7 @@ randomize_suites(Config, Modules) ->
         undefined ->
             Modules;
         "true" ->
-            Seed = rebar_rnd:uniform(65535),
+            Seed = crypto:rand_uniform(1, 65535),
             randomize_suites1(Modules, Seed);
         String ->
             try list_to_integer(String) of
-- 
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