support a hard distinction between configured releases and realized releases

6 files changed, 74 insertions, 58 deletions

diff --git a/src/rcl_prv_assembler.erl b/src/rcl_prv_assembler.erl
index f40bdc5..204c8bd 100644
--- a/src/rcl_prv_assembler.erl
+++ b/src/rcl_prv_assembler.erl
@@ -41,8 +41,8 @@ init(State) ->
 %% looking for OTP Applications
 -spec do(rcl_state:t()) -> {ok, rcl_state:t()} | relcool:error().
 do(State) ->
-    {RelName, RelVsn} = rcl_state:default_release(State),
-    Release = rcl_state:get_release(State, RelName, RelVsn),
+    {RelName, RelVsn} = rcl_state:default_configured_release(State),
+    Release = rcl_state:get_realized_release(State, RelName, RelVsn),
     OutputDir = rcl_state:output_dir(State),
     case create_output_dir(OutputDir) of
         ok ->
@@ -202,6 +202,7 @@ create_release_info(State, Release, OutputDir) ->
     ReleaseFile = filename:join([ReleaseDir, RelName ++ ".rel"]),
     ok = ec_file:mkdir_p(ReleaseDir),
     case rcl_release:metadata(Release) of
+    State1 = rcl_state:update_realized_release(State0, Release1),
         {ok, Meta} ->
                 ok = ec_file:write_term(ReleaseFile, Meta),
                 write_bin_file(State, Release, OutputDir, ReleaseDir);
diff --git a/src/rcl_prv_config.erl b/src/rcl_prv_config.erl
index dfbc321..2bc9851 100644
--- a/src/rcl_prv_config.erl
+++ b/src/rcl_prv_config.erl
@@ -123,7 +123,7 @@ load_config(ConfigFile, State) ->
 -spec load_terms(term(), {ok, rcl_state:t()} | relcool:error()) ->
                         {ok, rcl_state:t()} | relcool:error().
 load_terms({default_release, RelName, RelVsn}, {ok, State}) ->
-    {ok, rcl_state:default_release(State, RelName, RelVsn)};
+    {ok, rcl_state:default_configured_release(State, RelName, RelVsn)};
 load_terms({paths, Paths}, {ok, State}) ->
     code:add_pathsa([filename:absname(Path) || Path <- Paths]),
     {ok, State};
@@ -154,7 +154,7 @@ load_terms({release, {RelName, Vsn}, Applications}, {ok, State0}) ->
         E={error, _} ->
             E;
         {ok, Release1} ->
-            {ok, rcl_state:add_release(State0, Release1)}
+            {ok, rcl_state:add_configured_release(State0, Release1)}
         end;
 load_terms({release, {RelName, Vsn}, {erts, ErtsVsn},
             Applications}, {ok, State}) ->
@@ -163,7 +163,7 @@ load_terms({release, {RelName, Vsn}, {erts, ErtsVsn},
         E={error, _} ->
             E;
         {ok, Release1} ->
-            {ok, rcl_state:add_release(State, Release1)}
+            {ok, rcl_state:add_configured_release(State, Release1)}
     end;
 load_terms({sys_config, SysConfig}, {ok, State}) ->
     {ok, rcl_state:sys_config(State, filename:absname(SysConfig))};
diff --git a/src/rcl_prv_discover.erl b/src/rcl_prv_discover.erl
index 3627787..56085ac 100644
--- a/src/rcl_prv_discover.erl
+++ b/src/rcl_prv_discover.erl
@@ -48,9 +48,9 @@ do(State0) ->
             case rcl_rel_discovery:do(State0, LibDirs, AppMeta) of
                 {ok, Releases} ->
                     State1 = rcl_state:available_apps(State0, AppMeta),
-                    {ok, rcl_state:discovered_releases(State1, lists:foldl(fun add/2,
-                                                                           ec_dictionary:new(ec_dict),
-                                                                           Releases))};
+                    {ok, rcl_state:realized_releases(State1, lists:foldl(fun add/2,
+                                                                         ec_dictionary:new(ec_dict),
+                                                                         Releases))};
                 Error ->
                     Error
             end;
diff --git a/src/rcl_prv_overlay.erl b/src/rcl_prv_overlay.erl
index 40471ea..35e37bf 100644
--- a/src/rcl_prv_overlay.erl
+++ b/src/rcl_prv_overlay.erl
@@ -43,8 +43,8 @@ init(State) ->
 %% looking for OTP Applications
 -spec do(rcl_state:t()) -> {ok, rcl_state:t()} | relcool:error().
 do(State) ->
-    {RelName, RelVsn} = rcl_state:default_release(State),
-    Release = rcl_state:get_release(State, RelName, RelVsn),
+    {RelName, RelVsn} = rcl_state:default_configured_release(State),
+    Release = rcl_state:get_realized_release(State, RelName, RelVsn),
     case rcl_release:realized(Release) of
         true ->
             generate_overlay_vars(State, Release);
@@ -202,15 +202,15 @@ generate_state_vars(State) ->
      {providers, rcl_state:providers(State)},
      {sys_config, rcl_state:sys_config(State)},
      {root_dir, rcl_state:root_dir(State)},
-     {default_release_name, case rcl_state:default_release(State) of
+     {default_release_name, case rcl_state:default_configured_release(State) of
                                 {Name0, _} ->
                                     Name0
                             end},
-     {default_release_version, case rcl_state:default_release(State) of
+     {default_release_version, case rcl_state:default_configured_release(State) of
                                    {_, Vsn0} ->
                                        Vsn0
                                end},
-     {default_release, case rcl_state:default_release(State) of
+     {default_release, case rcl_state:default_configured_release(State) of
                            {Name1, undefined} ->
                                erlang:atom_to_list(Name1);
                            {Name1, Vsn1} ->
diff --git a/src/rcl_prv_release.erl b/src/rcl_prv_release.erl
index eac1f20..d90b492 100644
--- a/src/rcl_prv_release.erl
+++ b/src/rcl_prv_release.erl
@@ -89,7 +89,7 @@ create_dep_graph(State) ->
 -spec find_default_release(rcl_state:t(), rcl_depsolver:t()) ->
                                   {ok, rcl_state:t()} | relcool:error().
 find_default_release(State, DepGraph) ->
-    case rcl_state:default_release(State) of
+    case rcl_state:default_configured_release(State) of
         {undefined, undefined} ->
             resolve_default_release(State, DepGraph);
         {RelName, undefined} ->
@@ -103,9 +103,9 @@ find_default_release(State, DepGraph) ->
 resolve_default_release(State0, DepGraph) ->
     %% Here we will just get the highest versioned release and run that.
     case lists:sort(fun release_sort/2,
-                    ec_dictionary:to_list(rcl_state:releases(State0))) of
+                    ec_dictionary:to_list(rcl_state:configured_releases(State0))) of
         [{{RelName, RelVsn}, _} | _] ->
-            State1 = rcl_state:default_release(State0, RelName, RelVsn),
+            State1 = rcl_state:default_configured_release(State0, RelName, RelVsn),
             solve_release(State1, DepGraph, RelName, RelVsn);
         [] ->
             ?RCL_ERROR(no_releases_in_system)
@@ -113,12 +113,12 @@ resolve_default_release(State0, DepGraph) ->
 
 resolve_default_version(State0, DepGraph, RelName) ->
     %% Here we will just get the lastest version and run that.
-    AllReleases = ec_dictionary:to_list(rcl_state:releases(State0)),
+    AllReleases = ec_dictionary:to_list(rcl_state:configured_releases(State0)),
     SpecificReleases = [Rel || Rel={{PossibleRelName, _}, _} <- AllReleases,
                                PossibleRelName =:= RelName],
     case lists:sort(fun release_sort/2, SpecificReleases) of
         [{{RelName, RelVsn}, _} | _] ->
-            State1 = rcl_state:default_release(State0, RelName, RelVsn),
+            State1 = rcl_state:default_configured_release(State0, RelName, RelVsn),
             solve_release(State1, DepGraph, RelName, RelVsn);
         [] ->
             ?RCL_ERROR({no_releases_for, RelName})
@@ -143,7 +143,7 @@ solve_release(State0, DepGraph, RelName, RelVsn) ->
                   "Solving Release ~p-~s~n",
                   [RelName, RelVsn]),
     try
-        Release = rcl_state:get_release(State0, RelName, RelVsn),
+        Release = rcl_state:get_configured_release(State0, RelName, RelVsn),
         Goals = rcl_release:goals(Release),
         case Goals of
             [] ->
@@ -172,7 +172,7 @@ set_resolved(State, Release0, Pkgs) ->
                          fun() ->
                                  rcl_release:format(1, Release1)
                          end),
-           {ok, rcl_state:update_release(State, Release1)};
+           {ok, rcl_state:add_realized_release(State, Release1)};
        {error, E} ->
            ?RCL_ERROR({release_error, E})
    end.
diff --git a/src/rcl_state.erl b/src/rcl_state.erl
index a4f091c..3a91f48 100644
--- a/src/rcl_state.erl
+++ b/src/rcl_state.erl
@@ -40,14 +40,16 @@
          sys_config/2,
          root_dir/1,
          root_dir/2,
-         add_release/2,
-         get_release/3,
-         update_release/2,
-         releases/1,
-         discovered_releases/1,
-         discovered_releases/2,
-         default_release/1,
-         default_release/3,
+         add_configured_release/2,
+         get_configured_release/3,
+         configured_releases/1,
+         realized_releases/1,
+         realized_releases/2,
+         add_realized_release/2,
+         get_realized_release/3,
+         update_realized_release/2,
+         default_configured_release/1,
+         default_configured_release/3,
          available_apps/1,
          available_apps/2,
          get/2,
@@ -73,12 +75,13 @@
                   goals=[] :: [rcl_depsolver:constraint()],
                   providers = [] :: [rcl_provider:t()],
                   available_apps = [] :: [rcl_app_info:t()],
-                  default_release :: {rcl_release:name(), rcl_release:vsn()},
+                  default_configured_release :: {rcl_release:name(), rcl_release:vsn()},
                   sys_config :: file:filename() | undefined,
                   overrides :: [{AppName::atom(), Directory::file:filename()}],
                   skip_apps = [] :: [AppName::atom()],
-                  releases :: releases(),
-                  discovered_releases :: releases(),
+                  configured_releases :: releases(),
+                  realized_releases :: releases(),
+                  upfrom :: string() | binary() | undefined,
                   config_values :: ec_dictionary:dictionary(Key::atom(),
                                                             Value::term())}).
 
@@ -112,12 +115,13 @@ new(PropList, Target)
                  caller = proplists:get_value(caller, PropList, api),
                  goals=proplists:get_value(goals, PropList, []),
                  providers = [],
-                 releases=ec_dictionary:new(ec_dict),
-                 discovered_releases=ec_dictionary:new(ec_dict),
+                 configured_releases=ec_dictionary:new(ec_dict),
+                 realized_releases=ec_dictionary:new(ec_dict),
                  config_values=ec_dictionary:new(ec_dict),
                  overrides = proplists:get_value(overrides, PropList, []),
                  root_dir = proplists:get_value(root_dir, PropList, Root),
-                 default_release={proplists:get_value(relname, PropList, undefined),
+                 upfrom = proplists:get_value(upfrom, PropList, undefined),
+                 default_configured_release={proplists:get_value(relname, PropList, undefined),
                                   proplists:get_value(relvsn, PropList, undefined)}},
     rcl_state:put(create_logic_providers(State0),
                   disable_default_libs,
@@ -192,44 +196,55 @@ root_dir(State, RootDir) ->
 providers(M, NewProviders) ->
     M#state_t{providers=NewProviders}.
 
--spec add_release(t(), rcl_release:t()) -> t().
-add_release(M=#state_t{releases=Releases}, Release) ->
-    M#state_t{releases=ec_dictionary:add({rcl_release:name(Release),
+-spec add_configured_release(t(), rcl_release:t()) -> t().
+add_configured_release(M=#state_t{configured_releases=Releases}, Release) ->
+    M#state_t{configured_releases=ec_dictionary:add({rcl_release:name(Release),
                                           rcl_release:vsn(Release)},
                                          Release,
                                          Releases)}.
 
--spec update_release(t(), rcl_release:t()) -> t().
-update_release(M=#state_t{releases=Releases}, Release) ->
-    M#state_t{releases=ec_dictionary:add({rcl_release:name(Release),
-                                          rcl_release:vsn(Release)},
-                                         Release,
-                                         Releases)}.
-
--spec get_release(t(), rcl_release:name(), rcl_release:vsn()) -> rcl_release:t().
-get_release(#state_t{releases=Releases}, Name, Vsn) ->
+-spec get_configured_release(t(), rcl_release:name(), rcl_release:vsn()) -> rcl_release:t().
+get_configured_release(#state_t{configured_releases=Releases}, Name, Vsn) ->
     ec_dictionary:get({Name, Vsn}, Releases).
 
--spec releases(t()) -> releases().
-releases(#state_t{releases=Releases}) ->
+-spec configured_releases(t()) -> releases().
+configured_releases(#state_t{configured_releases=Releases}) ->
     Releases.
 
--spec discovered_releases(t()) -> releases().
-discovered_releases(#state_t{discovered_releases=Releases}) ->
+-spec realized_releases(t()) -> releases().
+realized_releases(#state_t{realized_releases=Releases}) ->
     Releases.
 
--spec discovered_releases(t(), releases()) -> t().
-discovered_releases(State, Releases) ->
-    State#state_t{discovered_releases=Releases}.
+-spec realized_releases(t(), releases()) -> t().
+realized_releases(State, Releases) ->
+    State#state_t{realized_releases=Releases}.
+
+-spec add_realized_release(t(), rcl_release:t()) -> t().
+add_realized_release(State = #state_t{realized_releases=Releases}, Release) ->
+    NewReleases = ec_dictionary:add({rcl_release:name(Release), rcl_release:vsn(Release)},
+                                    Release, Releases),
+    State#state_t{realized_releases=NewReleases}.
+
+-spec get_realized_release(t(), rcl_release:name(), rcl_release:vsn()) -> rcl_release:t().
+get_realized_release(#state_t{realized_releases=Releases}, Name, Vsn) ->
+    ec_dictionary:get({Name, Vsn}, Releases).
+
+-spec update_realized_release(t(), rcl_release:t()) ->
+     t().
+update_realized_release(M=#state_t{realized_releases=Releases}, Release) ->
+    M#state_t{realized_releases=ec_dictionary:add({rcl_release:name(Release),
+                                                   rcl_release:vsn(Release)},
+                                                  Release,
+                                                  Releases)}.
 
--spec default_release(t()) ->
+-spec default_configured_release(t()) ->
                              {rcl_release:name() | undefined, rcl_release:vsn() | undefined}.
-default_release(#state_t{default_release=Def}) ->
+default_configured_release(#state_t{default_configured_release=Def}) ->
     Def.
 
--spec default_release(t(), rcl_release:name(), rcl_release:vsn()) -> t().
-default_release(M, Name, Vsn) ->
-    M#state_t{default_release={Name, Vsn}}.
+-spec default_configured_release(t(), rcl_release:name(), rcl_release:vsn()) -> t().
+default_configured_release(M, Name, Vsn) ->
+    M#state_t{default_configured_release={Name, Vsn}}.
 
 -spec available_apps(t()) -> [rcl_app_info:t()].
 available_apps(#state_t{available_apps=Apps}) ->