77 lines
2.4 KiB
Nix
77 lines
2.4 KiB
Nix
{ callPackage
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, cmake
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, fetchFromGitHub
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, lib
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, protobuf
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, python3
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, stdenv
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, buildPackages
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, mallocBuild ? false
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}:
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stdenv.mkDerivation rec {
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pname = "nanopb";
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version = "0.4.6";
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src = fetchFromGitHub {
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owner = pname;
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repo = pname;
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rev = version;
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sha256 = "sha256-B9J+GkgOBR4iZaP6/2ykcjbkifoyhkuukkjK/CLBZj0=";
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};
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nativeBuildInputs = [ cmake python3 python3.pkgs.wrapPython ];
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pythonPath = with python3.pkgs; [ python3.pkgs.protobuf six ];
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cmakeFlags = [
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"-DBUILD_SHARED_LIBS=ON" # generate $out/lib/libprotobuf-nanopb.so{.0,}
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"-DBUILD_STATIC_LIBS=ON" # generate $out/lib/libprotobuf-nanopb.a
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"-Dnanopb_PROTOC_PATH=${buildPackages.protobuf}/bin/protoc"
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] ++ lib.optional mallocBuild "-DCMAKE_C_FLAGS=-DPB_ENABLE_MALLOC 1";
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postInstall = ''
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mkdir -p $out/share/nanopb/generator/proto
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cp ../generator/proto/nanopb.proto $out/share/nanopb/generator/proto/nanopb.proto
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cp ../pb_common.c ../pb_decode.c ../pb_encode.c $out/include/
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'';
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postFixup = ''
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wrapPythonPrograms
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'';
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passthru.tests = {
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simple-proto2 = callPackage ./test-simple-proto2 {};
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simple-proto3 = callPackage ./test-simple-proto3 {};
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message-with-annotations = callPackage ./test-message-with-annotations {};
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message-with-options = callPackage ./test-message-with-options {};
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};
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meta = with lib; {
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inherit (protobuf.meta) platforms;
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description = "Protocol Buffers with small code size";
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homepage = "https://jpa.kapsi.fi/nanopb/";
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license = licenses.zlib;
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maintainers = with maintainers; [ kalbasit ];
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longDescription = ''
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Nanopb is a small code-size Protocol Buffers implementation in ansi C. It
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is especially suitable for use in microcontrollers, but fits any memory
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restricted system.
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- Homepage: jpa.kapsi.fi/nanopb
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- Documentation: jpa.kapsi.fi/nanopb/docs
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- Downloads: jpa.kapsi.fi/nanopb/download
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- Forum: groups.google.com/forum/#!forum/nanopb
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In order to use the nanopb options in your proto files, you'll need to
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tell protoc where to find the nanopb.proto file.
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You can do so with the --proto_path (-I) option to add the directory
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''${nanopb}/share/nanopb/generator/proto like so:
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protoc --proto_path=. --proto_path=''${nanopb}/share/nanopb/generator/proto --plugin=protoc-gen-nanopb=''${nanopb}/bin/protoc-gen-nanopb --nanopb_out=out file.proto
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'';
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};
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}
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