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Add two grpc options #17

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47 changes: 44 additions & 3 deletions src/grpcbox_plugin_prv.erl
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Original file line number Diff line number Diff line change
Expand Up @@ -21,8 +21,10 @@ init(State) ->
{deps, ?DEPS}, % The list of dependencies
{example, "rebar3 grpc gen"}, % How to use the plugin
{opts, [{protos, $p, "protos", string, "directory of protos to build"},
{recursive, $r, "recursive", boolean, "search the protos dir recursively"},
{force, $f, "force", boolean, "overwrite already generated modules"},
{type, $t, "type", string, "generate 'client', 'server' or 'all'"}]},
{type, $t, "type", string, "generate 'client', 'server' or 'all'"},
{temp, $T, "temp", string, "temp directory to store generated beam files"}]},
{short_desc, "Generates behaviours for grpc services"},
{desc, "Generates behaviours for grpc services"}]),
{ok, rebar_state:add_provider(State, Provider)}.
Expand Down Expand Up @@ -52,9 +54,44 @@ format_error({gpb, File, Error}) ->
format_error(Reason) ->
io_lib:format("~p", [Reason]).

find_proto_files(Dir) ->
filelib:fold_files(Dir, ".proto$", true, fun(F, Acc) -> [ F|Acc ] end, []).

use_temp_beam_dir(AppInfo) ->
Opts = rebar_app_info:opts(AppInfo),
GrpcOpts = rebar_opts:get(Opts, grpc, []),
case proplists:get_value(temp, GrpcOpts, false) of
false -> false;
V -> { true, V }
end.


get_beam_out_dir(AppInfo) ->
case use_temp_beam_dir(AppInfo) of
false ->
rebar_app_info:ebin_dir(AppInfo);
{ true, Base } ->
Filename = filename:join(Base, io_lib:format("gprc.~s", [ os:getpid() ] )),
ok = file:make_dir(Filename),
Filename
end.

clean_beam_out_dir(AppInfo, Dir) ->
case use_temp_beam_dir(AppInfo) of
false ->
ok;
{ true, _ } ->
{ ok, Files } = file:list_dir(Dir),
lists:foreach(fun(File) ->
ok = file:delete(filename:join(Dir, File))
end, Files),
ok = file:del_dir(Dir)
end.


handle_app(AppInfo, Options, State) ->
Opts = rebar_app_info:opts(AppInfo),
BeamOutDir = rebar_app_info:ebin_dir(AppInfo),
BeamOutDir = get_beam_out_dir(AppInfo),
GrpcOpts = rebar_opts:get(Opts, grpc, []),
GpbOpts = proplists:get_value(gpb_opts, GrpcOpts, []),
BaseDir = rebar_app_info:dir(AppInfo),
Expand All @@ -73,7 +110,10 @@ handle_app(AppInfo, Options, State) ->
Ds ->
Ds
end,
ProtoFiles = lists:append([filelib:wildcard(filename:join([BaseDir, D, "*.proto"])) || D <- ProtosDirs]),
ProtoFiles = case proplists:get_value(recursive, GrpcOpts, false) of
false -> lists:append([filelib:wildcard(filename:join([BaseDir, D, "*.proto"])) || D <- ProtosDirs]);
true -> lists:append([find_proto_files(filename:join([BaseDir, D])) || D <- ProtosDirs])
end,

Type = case proplists:get_value(type, Options, undefined) of
undefined ->
Expand All @@ -85,6 +125,7 @@ handle_app(AppInfo, Options, State) ->
ProtoModules = [compile_pb(Filename, GpbOutDir, BeamOutDir, GpbOpts) || Filename <- ProtoFiles],
[gen_services(Templates, ProtoModule, ProtoBeam, GrpcOutDir, GrpcOpts, State)
|| {ProtoModule, ProtoBeam} <- ProtoModules],
clean_beam_out_dir(AppInfo, BeamOutDir),
ok.

compile_pb(Filename, OutDir, BeamOutDir, GpbOpts) ->
Expand Down