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-module(rebar_opts).
-export([get/2,
get/3,
set/3,
erl_opts/1,
apply_overrides/3,
add_to_profile/3,
merge_opts/2,
merge_opts/3]).
-include("rebar.hrl").
get(Opts, Key) ->
{ok, Value} = dict:find(Key, Opts),
Value.
get(Opts, Key, Default) ->
case dict:find(Key, Opts) of
{ok, Value} ->
Value;
error ->
Default
end.
set(Opts, Key, Value) ->
dict:store(Key, Value, Opts).
%% @doc Return list of erl_opts
-spec erl_opts(rebar_dict()) -> list().
erl_opts(Opts) ->
RawErlOpts = filter_defines(?MODULE:get(Opts, erl_opts, []), []),
Defines = [{d, list_to_atom(D)} ||
D <- ?MODULE:get(Opts, defines, [])],
AllOpts = Defines ++ RawErlOpts,
case proplists:is_defined(no_debug_info, AllOpts) of
true ->
[O || O <- AllOpts, O =/= no_debug_info];
false ->
[debug_info|AllOpts]
end.
apply_overrides(Opts, Name, Overrides) ->
%% Inefficient. We want the order we get here though.
Opts1 = lists:foldl(fun({override, O}, OptsAcc) ->
lists:foldl(fun({deps, Value}, OptsAcc1) ->
set(OptsAcc1, {deps,default}, Value);
({Key, Value}, OptsAcc1) ->
set(OptsAcc1, Key, Value)
end, OptsAcc, O);
(_, OptsAcc) ->
OptsAcc
end, Opts, Overrides),
Opts2 = lists:foldl(fun({override, N, O}, OptsAcc) when N =:= Name ->
lists:foldl(fun({deps, Value}, OptsAcc1) ->
set(OptsAcc1, {deps,default}, Value);
({Key, Value}, OptsAcc1) ->
set(OptsAcc1, Key, Value)
end, OptsAcc, O);
(_, OptsAcc) ->
OptsAcc
end, Opts1, Overrides),
lists:foldl(fun({add, N, O}, OptsAcc) when N =:= Name ->
lists:foldl(fun({deps, Value}, OptsAcc1) ->
OldValue = ?MODULE:get(OptsAcc1, {deps,default}, []),
set(OptsAcc1, {deps,default}, Value++OldValue);
({Key, Value}, OptsAcc1) ->
OldValue = ?MODULE:get(OptsAcc1, Key, []),
set(OptsAcc1, Key, Value++OldValue)
end, OptsAcc, O);
(_, OptsAcc) ->
OptsAcc
end, Opts2, Overrides).
add_to_profile(Opts, Profile, KVs) when is_atom(Profile), is_list(KVs) ->
Profiles = ?MODULE:get(Opts, profiles, []),
ProfileOpts = dict:from_list(proplists:get_value(Profile, Profiles, [])),
NewOpts = merge_opts(Profile, dict:from_list(KVs), ProfileOpts),
NewProfiles = [{Profile, dict:to_list(NewOpts)}|lists:keydelete(Profile, 1, Profiles)],
set(Opts, profiles, NewProfiles).
merge_opts(Profile, NewOpts, OldOpts) ->
Opts = merge_opts(NewOpts, OldOpts),
Opts2 = case dict:find(plugins, NewOpts) of
{ok, Value} ->
dict:store({plugins, Profile}, Value, Opts);
error ->
Opts
end,
case dict:find(deps, NewOpts) of
{ok, Value2} ->
dict:store({deps, Profile}, Value2, Opts2);
error ->
Opts2
end.
merge_opts(NewOpts, OldOpts) ->
dict:merge(fun(deps, _NewValue, OldValue) ->
OldValue;
({deps, _}, NewValue, _OldValue) ->
NewValue;
(plugins, NewValue, _OldValue) ->
NewValue;
({plugins, _}, NewValue, _OldValue) ->
NewValue;
(profiles, NewValue, OldValue) ->
dict:to_list(merge_opts(dict:from_list(NewValue), dict:from_list(OldValue)));
(mib_first_files, Value, Value) ->
Value;
(mib_first_files, NewValue, OldValue) ->
OldValue ++ NewValue;
(relx, NewValue, OldValue) ->
rebar_utils:tup_umerge(OldValue, NewValue);
(_Key, NewValue, OldValue) when is_list(NewValue) ->
case io_lib:printable_list(NewValue) of
true when NewValue =:= [] ->
case io_lib:printable_list(OldValue) of
true ->
NewValue;
false ->
OldValue
end;
true ->
NewValue;
false ->
rebar_utils:tup_umerge(NewValue, OldValue)
end;
(_Key, NewValue, _OldValue) ->
NewValue
end, NewOpts, OldOpts).
%% Internal functions
%%
%% Filter a list of erl_opts platform_define options such that only
%% those which match the provided architecture regex are returned.
%%
filter_defines([], Acc) ->
lists:reverse(Acc);
filter_defines([{platform_define, ArchRegex, Key} | Rest], Acc) ->
case rebar_utils:is_arch(ArchRegex) of
true ->
filter_defines(Rest, [{d, Key} | Acc]);
false ->
filter_defines(Rest, Acc)
end;
filter_defines([{platform_define, ArchRegex, Key, Value} | Rest], Acc) ->
case rebar_utils:is_arch(ArchRegex) of
true ->
filter_defines(Rest, [{d, Key, Value} | Acc]);
false ->
filter_defines(Rest, Acc)
end;
filter_defines([Opt | Rest], Acc) ->
filter_defines(Rest, [Opt | Acc]).
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