2 files changed, 60 insertions, 0 deletions
diff --git a/nix-dependencies/default.nix b/nix-dependencies/default.nix
new file mode 100644
index 0000000..9adde33
--- /dev/null
+++ b/nix-dependencies/default.nix
@@ -0,0 +1,2 @@
+{ nixpkgs ? import <nixpkgs> {} }:
+nixpkgs.callPackage ./dependencies.nix {}
diff --git a/nix-dependencies/dependencies.nix b/nix-dependencies/dependencies.nix
new file mode 100644
index 0000000..99280cc
--- /dev/null
+++ b/nix-dependencies/dependencies.nix
@@ -0,0 +1,58 @@
+{ stdenv
+, jo
+, pkg-config
+, coreutils
+, protobuf_25
+, grpc
+, clang
+, fmt
+
+  # for tests
+, gnugrep
+, unixtools
+}:
+
+stdenv.mkDerivation rec {
+  name = "nix-dependencies";
+
+  unpackPhase=''true'';
+
+  nativeBuildInputs = [
+    pkg-config
+    protobuf_25
+    grpc
+    jo
+  ];
+
+  buildInputs = [
+    clang
+    fmt
+    coreutils
+    gnugrep
+    unixtools.xxd
+  ];
+
+  buildPhase = ''
+    echo PKG_CONFIG_PATH=$PKG_CONFIG_PATH
+    jo TOOLCHAIN_CONFIG=$(jo \
+          CC=$(jo PATH=$(jo -a ${clang}/bin ${coreutils}/bin)) \
+          PROTO=$(jo PATH=$(jo -a ${protobuf_25}/bin ${grpc}/bin) \
+                     PROTOC=${protobuf_25}/bin/protoc \
+                     GRPC_PLUGIN=${grpc}/bin/grpc_cpp_plugin \
+             ) \
+          shell=$(jo PATH=$(jo -a ${coreutils}/bin)) \
+          test=$(jo PATH=$(jo -a ${gnugrep}/bin ${unixtools.xxd}/bin)) \
+          PKGCONFIG=$(jo pkg-config=${pkg-config}/bin/pkg-config \
+                         PKG_CONFIG_PATH=$(jo -a $PKG_CONFIG_PATH)) \
+          ) > config.json
+    cat config.json
+    jo "just files"=$(jo config=$(jo -a $(jo root=system path=$out/share/config.json))) > rc.json
+  '';
+
+  installPhase = ''
+    mkdir -p $out/share
+    cp config.json $out/share
+    cp rc.json $out/share
+  '';
+
+}