Merge pull request #79 from tsloughter/master

add extend to release definition. This closes #16

2 files changed, 52 insertions, 2 deletions

diff --git a/src/rlx_prv_config.erl b/src/rlx_prv_config.erl
index 126b497..e2eac7e 100644
--- a/src/rlx_prv_config.erl
+++ b/src/rlx_prv_config.erl
@@ -156,6 +156,18 @@ load_terms({dev_mode, DevMode}, {ok, State0}) ->
     {ok, rlx_state:dev_mode(State0, DevMode)};
 load_terms({include_src, IncludeSrc}, {ok, State0}) ->
     {ok, rlx_state:include_src(State0, IncludeSrc)};
+load_terms({release, {RelName, Vsn, {extend, RelName2}}, Applications}, {ok, State0}) ->
+    Release0 = rlx_release:new(RelName, Vsn),
+    ExtendRelease = rlx_state:get_configured_release(State0, RelName2, Vsn),
+    Applications1 = rlx_release:goals(ExtendRelease),
+    case rlx_release:goals(Release0,
+                          lists:umerge(lists:usort(Applications),
+                                      lists:usort(Applications1))) of
+        E={error, _} ->
+            E;
+        {ok, Release1} ->
+            {ok, rlx_state:add_configured_release(State0, Release1)}
+        end;
 load_terms({release, {RelName, Vsn}, Applications}, {ok, State0}) ->
     Release0 = rlx_release:new(RelName, Vsn),
     case rlx_release:goals(Release0, Applications) of
diff --git a/test/rlx_release_SUITE.erl b/test/rlx_release_SUITE.erl
index 2d4c86d..d16dce9 100644
--- a/test/rlx_release_SUITE.erl
+++ b/test/rlx_release_SUITE.erl
@@ -25,6 +25,7 @@
          init_per_testcase/2,
          all/0,
          make_release/1,
+         make_extend_release/1,
          make_scriptless_release/1,
          make_overridden_release/1,
          make_skip_app_release/1,
@@ -64,8 +65,8 @@ init_per_testcase(_, Config) ->
      {state, State} | Config].
 
 all() ->
-    [make_release, make_scriptless_release, make_overridden_release,
-     make_auto_skip_empty_app_release,
+    [make_release, make_extend_release, make_scriptless_release,
+     make_overridden_release, make_auto_skip_empty_app_release,
      make_skip_app_release, make_app_type_none_release,
      make_implicit_config_release, make_rerun_overridden_release,
      overlay_release, make_goalless_release, make_depfree_release,
@@ -107,6 +108,43 @@ make_release(Config) ->
     ?assert(lists:member({goal_app_2, "0.0.1"}, AppSpecs)),
     ?assert(lists:member({lib_dep_1, "0.0.1", load}, AppSpecs)).
 
+make_extend_release(Config) ->
+    LibDir1 = proplists:get_value(lib1, Config),
+    [(fun({Name, Vsn}) ->
+              create_app(LibDir1, Name, Vsn, [kernel, stdlib], [])
+      end)(App)
+     ||
+        App <-
+            [{create_random_name("lib_app1_"), create_random_vsn()}
+             || _ <- lists:seq(1, 100)]],
+
+    create_app(LibDir1, "goal_app_1", "0.0.1", [stdlib,kernel,non_goal_1], []),
+    create_app(LibDir1, "lib_dep_1", "0.0.1", [stdlib,kernel], []),
+    create_app(LibDir1, "goal_app_2", "0.0.1", [stdlib,kernel,goal_app_1,non_goal_2], []),
+    create_app(LibDir1, "non_goal_1", "0.0.1", [stdlib,kernel], [lib_dep_1]),
+    create_app(LibDir1, "non_goal_2", "0.0.1", [stdlib,kernel], []),
+
+    ConfigFile = filename:join([LibDir1, "relx.config"]),
+    write_config(ConfigFile,
+                 [{release, {foo, "0.0.1"},
+                   [goal_app_1,
+                    goal_app_2]},
+                  {release, {foo_test, "0.0.1", {extend, foo}},
+                  [goal_app_2]}]),
+    OutputDir = filename:join([proplists:get_value(data_dir, Config),
+                               create_random_name("relx-output")]),
+    {ok, State} = relx:do(foo_test, undefined, [], [LibDir1], 3,
+                              OutputDir, ConfigFile),
+    [{{foo_test, "0.0.1"}, Release}] = ec_dictionary:to_list(rlx_state:realized_releases(State)),
+    AppSpecs = rlx_release:applications(Release),
+    ?assert(lists:keymember(stdlib, 1, AppSpecs)),
+    ?assert(lists:keymember(kernel, 1, AppSpecs)),
+    ?assert(lists:member({non_goal_1, "0.0.1"}, AppSpecs)),
+    ?assert(lists:member({non_goal_2, "0.0.1"}, AppSpecs)),
+    ?assert(lists:member({goal_app_1, "0.0.1"}, AppSpecs)),
+    ?assert(lists:member({goal_app_2, "0.0.1"}, AppSpecs)),
+    ?assert(lists:member({lib_dep_1, "0.0.1", load}, AppSpecs)).
+
 make_invalid_config_release(Config) ->
     LibDir1 = proplists:get_value(lib1, Config),
     [(fun({Name, Vsn}) ->