blob: a63d367b800dea1c4aec30b6396ccdd2a02a5107 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
{ callPackage
, cmake
, fetchFromGitHub
, lib
, protobuf
, python3
, stdenv
}:
let
pythonRuntime = python3.withPackages(ps: [ ps.protobuf ]);
in stdenv.mkDerivation rec {
pname = "nanopb";
version = "0.4.1";
src = fetchFromGitHub {
owner = pname;
repo = pname;
rev = version;
sha256 = "16zxk42wzn519bpxf4578qn97k0h1cnbkvqqkqvka9sl0n3lz2dp";
};
nativeBuildInputs = [ cmake python3 ];
cmakeFlags = [
"-DBUILD_SHARED_LIBS=ON" # generate $out/lib/libprotobuf-nanopb.so{.0,}
"-DBUILD_STATIC_LIBS=ON" # generate $out/lib/libprotobuf-nanopb.a
"-Dnanopb_PROTOC_PATH=${protobuf}/bin/protoc"
];
# On a case-insensitive filesystem (such as on Darwin), CMake fails to create
# the build directory because of the existence of the BUILD file.
# TODO: This can be removed once https://github.com/nanopb/nanopb/pull/537 is merged.
preConfigure = "rm BUILD";
# install the generator which requires Python3 with the protobuf package. It
# also requires the nanopb module that's generated by CMake to be in a
# relative location to the generator itself so we move it out of the
# python.sitePackages into the shared generator folder.
postInstall = ''
mkdir -p $out/share/nanopb/generator/proto
cp ../generator/nanopb_generator.py $out/share/nanopb/generator/nanopb_generator.py
cp ../generator/proto/_utils.py $out/share/nanopb/generator/proto/_utils.py
cp ../generator/proto/nanopb.proto $out/share/nanopb/generator/proto/nanopb.proto
mv $out/${python3.sitePackages}/nanopb_pb2.py $out/share/nanopb/generator/proto
rm -rf $out/${python3.sitePackages}
mkdir $out/bin
substitute ${./protoc-gen-nanopb} $out/bin/protoc-gen-nanopb \
--subst-var-by python ${pythonRuntime}/bin/python \
--subst-var-by out $out
chmod +x $out/bin/protoc-gen-nanopb
'';
passthru.tests = {
simple-proto2 = callPackage ./test-simple-proto2 {};
simple-proto3 = callPackage ./test-simple-proto3 {};
message-with-annotations = callPackage ./test-message-with-annotations {};
message-with-options = callPackage ./test-message-with-options {};
};
meta = with lib; {
inherit (protobuf.meta) platforms;
description = "Protocol Buffers with small code size";
homepage = "https://jpa.kapsi.fi/nanopb/";
license = licenses.zlib;
maintainers = with maintainers; [ kalbasit ];
longDescription = ''
Nanopb is a small code-size Protocol Buffers implementation in ansi C. It
is especially suitable for use in microcontrollers, but fits any memory
restricted system.
- Homepage: jpa.kapsi.fi/nanopb
- Documentation: jpa.kapsi.fi/nanopb/docs
- Downloads: jpa.kapsi.fi/nanopb/download
- Forum: groups.google.com/forum/#!forum/nanopb
In order to use the nanopb options in your proto files, you'll need to
tell protoc where to find the nanopb.proto file.
You can do so with the --proto_path (-I) option to add the directory
''${nanopb}/share/nanopb/generator/proto like so:
protoc --proto_path=. --proto_path=''${nanopb}/share/nanopb/generator/proto --plugin=protoc-gen-nanopb=''${nanopb}/bin/protoc-gen-nanopb --nanopb_out=out file.proto
'';
};
}
|