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-module(rebar_app_discover).
-export([do/2,
format_error/1,
find_unbuilt_apps/1,
find_apps/1,
find_apps/2,
find_app/2]).
-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) ->
StateAcc1 = merge_deps(AppInfo, StateAcc),
Name = rebar_app_info:name(AppInfo),
OutDir = filename:join(DepsDir, Name),
AppInfo1 = rebar_app_info:out_dir(AppInfo, OutDir),
ProjectDeps1 = lists:delete(Name, ProjectDeps),
rebar_state:project_apps(StateAcc1
,rebar_app_info:deps(AppInfo1, ProjectDeps1))
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) ->
Profiles = rebar_state:current_profiles(State),
Name = rebar_app_info:name(AppInfo),
C = rebar_config:consult(rebar_app_info:dir(AppInfo)),
AppState = rebar_state:apply_overrides(
rebar_state:apply_profiles(
rebar_state:new(State, C, rebar_app_info:dir(AppInfo)), Profiles), Name),
lists:foldl(fun(Profile, StateAcc) ->
AppProfDeps = rebar_state:get(AppState, {deps, Profile}, []),
TopLevelProfDeps = rebar_state:get(StateAcc, {deps, Profile}, []),
ProfDeps2 = lists:keymerge(1, TopLevelProfDeps, AppProfDeps),
rebar_state:set(StateAcc, {deps, Profile}, ProfDeps2)
end, State, lists:reverse(Profiles)).
-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"])),
case AppFile of
[File] ->
AppInfo = create_app_info(AppDir, File),
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;
[] ->
case AppSrcFile of
[File] ->
case Validate of
V when V =:= invalid ; V =:= all ->
AppInfo = create_app_info(AppDir, File),
{true, rebar_app_info:app_file_src(AppInfo, File)};
valid ->
false
end;
[] ->
false;
Other when is_list(Other) ->
throw({error, {multiple_app_files, Other}})
end;
Other when is_list(Other) ->
throw({error, {multiple_app_files, Other}})
end.
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.
create_app_info(AppDir, AppFile) ->
case file:consult(AppFile) of
{ok, [{application, AppName, AppDetails}]} ->
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),
rebar_app_info:dir(AppInfo1, AppDir);
_ ->
error
end.
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