-module(rebar_app_discover).
-export([do/2,
format_error/1,
find_unbuilt_apps/1,
find_apps/1,
find_apps/2,
find_app/2]).
-include("rebar.hrl").
-include_lib("providers/include/providers.hrl").
do(State, LibDirs) ->
BaseDir = rebar_state:dir(State),
Dirs = [filename:join(BaseDir, LibDir) || LibDir <- LibDirs],
Apps = find_apps(Dirs, all),
ProjectDeps = rebar_state:deps_names(State),
DepsDir = rebar_dir:deps_dir(State),
%% Sort apps so we get the same merged deps config everytime
SortedApps = rebar_utils:sort_deps(Apps),
lists:foldl(fun(AppInfo, StateAcc) ->
Name = rebar_app_info:name(AppInfo),
case enable(State, AppInfo) of
true ->
{AppInfo1, StateAcc1} = merge_deps(AppInfo, StateAcc),
OutDir = filename:join(DepsDir, Name),
AppInfo2 = rebar_app_info:out_dir(AppInfo1, OutDir),
ProjectDeps1 = lists:delete(Name, ProjectDeps),
rebar_state:project_apps(StateAcc1
,rebar_app_info:deps(AppInfo2, ProjectDeps1));
false ->
?INFO("Ignoring ~s", [Name]),
StateAcc
end
end, State, SortedApps).
format_error({module_list, File}) ->
io_lib:format("Error reading module list from ~p~n", [File]);
format_error({missing_module, Module}) ->
io_lib:format("Module defined in app file missing: ~p~n", [Module]).
merge_deps(AppInfo, State) ->
Default = rebar_state:default(State),
CurrentProfiles = rebar_state:current_profiles(State),
Name = rebar_app_info:name(AppInfo),
C = project_app_config(AppInfo, State),
%% We reset the opts here to default so no profiles are applied multiple times
AppState = rebar_state:apply_overrides(
rebar_state:apply_profiles(
rebar_state:new(reset_hooks(rebar_state:opts(State, Default)), C,
rebar_app_info:dir(AppInfo)), CurrentProfiles), Name),
AppState1 = rebar_state:set(AppState, artifacts, []),
AppInfo1 = rebar_app_info:state(AppInfo, AppState1),
State1 = lists:foldl(fun(Profile, StateAcc) ->
AppProfDeps = rebar_state:get(AppState, {deps, Profile}, []),
TopLevelProfDeps = rebar_state:get(StateAcc, {deps, Profile}, []),
ProfDeps2 = dedup(rebar_utils:tup_umerge(
rebar_utils:tup_sort(TopLevelProfDeps)
,rebar_utils:tup_sort(AppProfDeps))),
rebar_state:set(StateAcc, {deps, Profile}, ProfDeps2)
end, State, lists:reverse(CurrentProfiles)),
{AppInfo1, State1}.
project_app_config(AppInfo, State) ->
C = rebar_config:consult(rebar_app_info:dir(AppInfo)),
Dir = rebar_app_info:dir(AppInfo),
maybe_reset_hooks(C, Dir, State).
%% Here we check if the app is at the root of the project.
%% If it is, then drop the hooks from the config so they aren't run twice
maybe_reset_hooks(C, Dir, State) ->
case ec_file:real_dir_path(rebar_dir:root_dir(State)) of
Dir ->
C1 = proplists:delete(provider_hooks, C),
proplists:delete(post_hooks, proplists:delete(pre_hooks, C1));
_ ->
C
end.
reset_hooks(State) ->
lists:foldl(fun(Key, StateAcc) ->
rebar_state:set(StateAcc, Key, [])
end, State, [post_hooks, pre_hooks, provider_hooks]).
-spec all_app_dirs(list(file:name())) -> list(file:name()).
all_app_dirs(LibDirs) ->
lists:flatmap(fun(LibDir) ->
app_dirs(LibDir)
end, LibDirs).
app_dirs(LibDir) ->
Path1 = filename:join([LibDir,
"*",
"src",
"*.app.src"]),
Path2 = filename:join([LibDir,
"src",
"*.app.src"]),
Path3 = filename:join([LibDir,
"*",
"ebin",
"*.app"]),
Path4 = filename:join([LibDir,
"ebin",
"*.app"]),
lists:usort(lists:foldl(fun(Path, Acc) ->
Files = filelib:wildcard(ec_cnv:to_list(Path)),
[app_dir(File) || File <- Files] ++ Acc
end, [], [Path1, Path2, Path3, Path4])).
find_unbuilt_apps(LibDirs) ->
find_apps(LibDirs, invalid).
-spec find_apps([file:filename_all()]) -> [rebar_app_info:t()].
find_apps(LibDirs) ->
find_apps(LibDirs, valid).
-spec find_apps([file:filename_all()], valid | invalid | all) -> [rebar_app_info:t()].
find_apps(LibDirs, Validate) ->
rebar_utils:filtermap(fun(AppDir) ->
find_app(AppDir, Validate)
end, all_app_dirs(LibDirs)).
-spec find_app(file:filename_all(), valid | invalid | all) -> {true, rebar_app_info:t()} | false.
find_app(AppDir, Validate) ->
AppFile = filelib:wildcard(filename:join([AppDir, "ebin", "*.app"])),
AppSrcFile = filelib:wildcard(filename:join([AppDir, "src", "*.app.src"])),
AppInfo = try_handle_app_file(AppFile, AppDir, AppSrcFile, Validate),
AppInfo.
app_dir(AppFile) ->
filename:join(rebar_utils:droplast(filename:split(filename:dirname(AppFile)))).
-spec create_app_info(file:name(), file:name()) -> rebar_app_info:t() | {error, term()}.
create_app_info(AppDir, AppFile) ->
[{application, AppName, AppDetails}] = rebar_file_utils:try_consult(AppFile),
AppVsn = proplists:get_value(vsn, AppDetails),
Applications = proplists:get_value(applications, AppDetails, []),
IncludedApplications = proplists:get_value(included_applications, AppDetails, []),
{ok, AppInfo} = rebar_app_info:new(AppName, AppVsn, AppDir, []),
AppInfo1 = rebar_app_info:applications(
rebar_app_info:app_details(AppInfo, AppDetails),
IncludedApplications++Applications),
Valid = case rebar_app_utils:validate_application_info(AppInfo1) of
true ->
true;
_ ->
false
end,
rebar_app_info:dir(rebar_app_info:valid(AppInfo1, Valid), AppDir).
dedup([]) -> [];
dedup([A]) -> [A];
dedup([H,H|T]) -> dedup([H|T]);
dedup([H|T]) -> [H|dedup(T)].
%% Read in and parse the .app file if it is availabe. Do the same for
%% the .app.src file if it exists.
try_handle_app_file([], AppDir, AppSrcFile, Validate) ->
try_handle_app_src_file([], AppDir, AppSrcFile, Validate);
try_handle_app_file([File], AppDir, AppSrcFile, Validate) ->
try create_app_info(AppDir, File) of
AppInfo ->
AppInfo1 = rebar_app_info:app_file(AppInfo, File),
AppInfo2 = case AppSrcFile of
[F] ->
rebar_app_info:app_file_src(AppInfo1, F);
[] ->
AppInfo1;
Other when is_list(Other) ->
throw({error, {multiple_app_files, Other}})
end,
case Validate of
valid ->
case rebar_app_utils:validate_application_info(AppInfo2) of
true ->
{true, AppInfo2};
_ ->
false
end;
invalid ->
case rebar_app_utils:validate_application_info(AppInfo2) of
true ->
false;
_ ->
{true, AppInfo2}
end;
all ->
{true, AppInfo2}
end
catch
throw:{error, {Module, Reason}} ->
?DEBUG("Falling back to app.src file because .app failed: ~s", [Module:format_error(Reason)]),
try_handle_app_src_file(File, AppDir, AppSrcFile, Validate)
end;
try_handle_app_file(Other, _AppDir, _AppSrcFile, _Validate) ->
throw({error, {multiple_app_files, Other}}).
%% Read in the .app.src file if we aren't looking for a valid (already built) app
try_handle_app_src_file(_, _AppDir, [], _Validate) ->
false;
try_handle_app_src_file(_, _AppDir, _AppSrcFile, valid) ->
false;
try_handle_app_src_file(_, AppDir, [File], Validate) when Validate =:= invalid
; Validate =:= all ->
AppInfo = create_app_info(AppDir, File),
case AppInfo of
{error, Reason} ->
throw({error, {invalid_app_file, File, Reason}});
_ ->
{true, rebar_app_info:app_file_src(AppInfo, File)}
end;
try_handle_app_src_file(_, _AppDir, Other, _Validate) ->
throw({error, {multiple_app_files, Other}}).
enable(State, AppInfo) ->
not lists:member(to_atom(rebar_app_info:name(AppInfo)),
rebar_state:get(State, excluded_apps, [])).
to_atom(Bin) ->
list_to_atom(binary_to_list(Bin)).