fix code path when validating plugins

3 files changed, 32 insertions, 7 deletions

diff --git a/src/rebar_plugins.erl b/src/rebar_plugins.erl
index 68ba6da..1fc01ff 100644
--- a/src/rebar_plugins.erl
+++ b/src/rebar_plugins.erl
@@ -105,7 +105,7 @@ handle_plugin(Profile, Plugin, State, Upgrade) ->
         %% Add newly built deps and plugin to code path
         State3 = rebar_state:update_all_plugin_deps(State2, Apps),
         NewCodePaths = [rebar_app_info:ebin_dir(A) || A <- ToBuild],
-        code:add_pathsa(CodePaths),
+        code:add_pathsa(NewCodePaths++CodePaths),
 
         %% Store plugin code paths so we can remove them when compiling project apps
         State4 = rebar_state:update_code_paths(State3, all_plugin_deps, CodePaths++NewCodePaths),
diff --git a/test/rebar_plugins_SUITE.erl b/test/rebar_plugins_SUITE.erl
index a313683..2d74539 100644
--- a/test/rebar_plugins_SUITE.erl
+++ b/test/rebar_plugins_SUITE.erl
@@ -14,7 +14,8 @@
          upgrade_project_plugin/1,
          sub_app_plugins/1,
          sub_app_plugin_overrides/1,
-         project_plugins/1]).
+         project_plugins/1,
+         use_checkout_plugins/1]).
 
 -include_lib("common_test/include/ct.hrl").
 -include_lib("eunit/include/eunit.hrl").
@@ -37,7 +38,7 @@ end_per_testcase(_, _Config) ->
 
 all() ->
     [compile_plugins, compile_global_plugins, complex_plugins, list, upgrade, upgrade_project_plugin,
-     sub_app_plugins, sub_app_plugin_overrides, project_plugins].
+     sub_app_plugins, sub_app_plugin_overrides, project_plugins, use_checkout_plugins].
 
 %% Tests that compiling a project installs and compiles the plugins of deps
 compile_plugins(Config) ->
@@ -370,3 +371,26 @@ project_plugins(Config) ->
 
     ?assertEqual(length(Release), 2),
     ?assertEqual(length(Compile), 1).
+
+use_checkout_plugins(Config) ->
+    AppDir = ?config(apps, Config),
+
+    Name = rebar_test_utils:create_random_name("app1_"),
+    Vsn = rebar_test_utils:create_random_vsn(),
+    rebar_test_utils:create_app(AppDir, Name, Vsn, [kernel, stdlib]),
+
+    PluginName = "checkedout",
+    CheckoutsDir = filename:join(AppDir, "_checkouts/checkedout"),
+    rebar_test_utils:create_plugin(CheckoutsDir, PluginName, "1.0.0", []),
+
+    RConfFile =
+        rebar_test_utils:create_config(AppDir,
+                                       [{deps, []},
+                                        {plugins, [list_to_atom(PluginName)]}]),
+    {ok, RConf} = file:consult(RConfFile),
+
+    %% Verify we can run the plugin
+    ?assertMatch({ok, _}, rebar_test_utils:run_and_check(
+                            Config, RConf, ["checkedout"],
+                            {ok, []}
+                           )).
diff --git a/test/rebar_test_utils.erl b/test/rebar_test_utils.erl
index c1e8b62..b74aa2f 100644
--- a/test/rebar_test_utils.erl
+++ b/test/rebar_test_utils.erl
@@ -425,15 +425,16 @@ erl_src_file(Name) ->
 
 plugin_src_file(Name) ->
     io_lib:format("-module('~s').\n"
-                 "-export([init/1]).\n"
+                 "-export([init/1, do/1]).\n"
                  "init(State) -> \n"
                  "Provider = providers:create([\n"
                  "{name, '~s'},\n"
                  "{module, '~s'}\n"
                  "]),\n"
-                 "{ok, rebar_state:add_provider(State, Provider)}.\n", [filename:basename(Name, ".erl"),
-                                                                        filename:basename(Name, ".erl"),
-                                                                        filename:basename(Name, ".erl")]).
+                 "{ok, rebar_state:add_provider(State, Provider)}.\n"
+                 "do(State) -> {ok, State}.\n", [filename:basename(Name, ".erl"),
+                                                 filename:basename(Name, ".erl"),
+                                                 filename:basename(Name, ".erl")]).
 
 erl_eunitized_src_file(Name) ->
     io_lib:format("-module('~s').\n"