Remove rebar3_eqc when using rebar 2.x

Author: kuenishi

rebar.config

@@ -13,6 +13,11 @@
                    "src/msgpack_ext.erl"
                   ]}.
 
+{plugins, [
+    rebar3_eqc,
+    rebar3_hex
+]}.
+
 %% {port_sources, ["c_src/*.c"]}.
 %% {port_env, [
 %% 	     %% Make sure to set -fPIC when compiling leveldb

rebar.config.script

@@ -1,10 +1,9 @@
 case application:get_key(rebar, vsn) of
-  {ok, "3."++_} ->
-    PLUGINS = {plugins, [
-        {rebar3_eqc, ".*", {git, "https://github.com/kellymclaughlin/rebar3-eqc-plugin.git", {tag, "0.0.8"}}},
-        rebar3_hex
-    ]},
-    lists:keystore(plugins, 1, CONFIG, PLUGINS);
+  {ok, "2."++_V} ->
+   %% Workarounds for rebar2 here
+   {plugins, Plugins} = lists:keyfind(plugins, 1, CONFIG),
+   NewPlugins = lists:delete(rebar3_eqc, Plugins),
+   lists:keyreplace(plugins, 1, CONFIG, {plugins, NewPlugins});
   _ ->
    CONFIG
 end.