Merge pull request #1249 from ferd/required-escript-deps

Escriptize based on configured apps only

priv/templates/escript_rebar.config

@@ -3,7 +3,7 @@
 
 {escript_incl_apps,
  [{{name}}]}.
-{escript_top_level_app, {{name}}}.
+{escript_main_app, {{name}}}.
 {escript_name, {{name}}}.
 {escript_emu_args, "%%! +sbtu +A0\n"}.
 

rebar.config

@@ -9,7 +9,7 @@
         {bbmustache,          "1.0.4"},
         {relx,                "3.19.0"},
         {cf,                  "0.2.1"},
-        {cth_readable,        "1.2.2"},
+        {cth_readable,        "1.2.3"},
         {eunit_formatters,    "0.3.1"}]}.
 
 {escript_name, rebar3}.

rebar.lock

@@ -2,7 +2,7 @@
 [{<<"bbmustache">>,{pkg,<<"bbmustache">>,<<"1.0.4">>},0},
  {<<"certifi">>,{pkg,<<"certifi">>,<<"0.4.0">>},0},
  {<<"cf">>,{pkg,<<"cf">>,<<"0.2.1">>},0},
- {<<"cth_readable">>,{pkg,<<"cth_readable">>,<<"1.2.2">>},0},
+ {<<"cth_readable">>,{pkg,<<"cth_readable">>,<<"1.2.3">>},0},
  {<<"erlware_commons">>,{pkg,<<"erlware_commons">>,<<"0.21.0">>},0},
  {<<"eunit_formatters">>,{pkg,<<"eunit_formatters">>,<<"0.3.1">>},0},
  {<<"getopt">>,{pkg,<<"getopt">>,<<"0.8.2">>},0},
@@ -14,7 +14,7 @@
  {<<"bbmustache">>, <<"7BA94F971C5AFD7B6617918A4BB74705E36CAB36EB84B19B6A1B7EE06427AA38">>},
  {<<"certifi">>, <<"A7966EFB868B179023618D29A407548F70C52466BF1849B9E8EBD0E34B7EA11F">>},
  {<<"cf">>, <<"69D0B1349FD4D7D4DC55B7F407D29D7A840BF9A1EF5AF529F1EBE0CE153FC2AB">>},
- {<<"cth_readable">>, <<"983913A8E8572310B7EAF5F2631148B7D70B3C090D2120DCFE777A93AA4165FB">>},
+ {<<"cth_readable">>, <<"293120673DFF82F0768612C5282E35C40CACC1B6F94FE99077438FD3749D0E27">>},
  {<<"erlware_commons">>, <<"A04433071AD7D112EDEFC75AC77719DD3E6753E697AC09428FC83D7564B80B15">>},
  {<<"eunit_formatters">>, <<"7A6FC351EB5B873E2356B8852EB751E20C13A72FBCA03393CF682B8483509573">>},
  {<<"getopt">>, <<"B17556DB683000BA50370B16C0619DF1337E7AF7ECBF7D64FBF8D1D6BCE3109B">>},

src/rebar_prv_escriptize.erl

@@ -90,9 +90,9 @@ escriptize(State0, App) ->
     %% Look for a list of other applications (dependencies) to include
     %% in the output file. We then use the .app files for each of these
     %% to pull in all the .beam files.
-    InclApps = lists:usort([ec_cnv:to_atom(AppName) | rebar_state:get(State, escript_incl_apps, [])
-                           ++ all_deps(State)]),
+    TopInclApps = lists:usort([ec_cnv:to_atom(AppName) | rebar_state:get(State, escript_incl_apps, [])]),
     AllApps = rebar_state:all_deps(State)++rebar_state:project_apps(State),
+    InclApps = find_deps(TopInclApps, AllApps),
     InclBeams = get_apps_beams(InclApps, AllApps),
 
     %% Look for a list of extra files to include in the output file.
@@ -219,9 +219,23 @@ usort(List) ->
 get_nonempty(Files) ->
     [{FName,FBin} || {FName,FBin} <- Files, FBin =/= <<>>].
 
-all_deps(State) ->
-    [list_to_existing_atom(binary_to_list(rebar_app_info:name(App)))
-     || App <- rebar_state:all_deps(State)].
+find_deps(AppNames, AllApps) ->
+    BinAppNames = [ec_cnv:to_binary(Name) || Name <- AppNames],
+    [ec_cnv:to_atom(Name) ||
+     Name <- find_deps_of_deps(BinAppNames, AllApps, BinAppNames)].
+
+%% Should look at the app files to find direct dependencies
+find_deps_of_deps([], _, Acc) -> Acc;
+find_deps_of_deps([Name|Names], Apps, Acc) ->
+    ?DEBUG("processing ~p", [Name]),
+    {ok, App} = rebar_app_utils:find(Name, Apps),
+    DepNames = proplists:get_value(applications, rebar_app_info:app_details(App), []),
+    BinDepNames = [ec_cnv:to_binary(Dep) || Dep <- DepNames,
+                   %% ignore system libs; shouldn't include them.
+                   not lists:prefix(code:root_dir(), code:lib_dir(Dep))]
+                -- ([Name|Names]++Acc), % avoid already seen deps
+    ?DEBUG("new deps of ~p found to be ~p", [Name, BinDepNames]),
+    find_deps_of_deps(BinDepNames ++ Names, Apps, BinDepNames ++ Acc).
 
 def(Rm, State, Key, Default) ->
     Value0 = rebar_state:get(State, Key, Default),