deps: add prometheus-cpp

deps/prometheus-cpp.nix

+{ stdenv, fetchFromGitHub, cmake }:
+
+stdenv.mkDerivation rec {
+  pname = "prometheus-cpp";
+  version = "0.12.3";
+
+  src = fetchFromGitHub {
+    owner = "jupp0r";
+    repo = "prometheus-cpp";
+    rev = "v${version}";
+    sha256 = "0lzfyphk8g8h3f9yv0zpi3jlcb391m1hxv0h0rkrgm3sykmwiaz0";
+    fetchSubmodules = true;
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  cmakeFlags = [
+    "-DENABLE_TESTING=OFF"
+    "-DUSE_THIRDPARTY_LIBRARIES=OFF"
+    "-DOVERRIDE_CXX_STANDARD_FLAGS=OFF"
+    "-DENABLE_PULL=OFF"
+    "-DENABLE_PUSH=OFF"
+    "-DENABLE_COMPRESSION=OFF"
+  ];
+}

hosts/kagome/default.nix

@@ -16,6 +16,7 @@
 , cpp-libp2p
 , tsl_hat_trie
 , boost_di
+, prometheus-cpp
 , schnorrkel_crust
 }:
 
@@ -49,6 +50,7 @@ stdenv.mkDerivation rec {
     jsonrpc-lean
     tsl_hat_trie
     boost_di
+    prometheus-cpp
   ];
 
   propagatedBuildInputs = [

overlay.nix

@@ -49,6 +49,8 @@ let
     boost_di     = callPackage ./deps/boost_di.nix {};
     tsl_hat_trie = callPackage ./deps/tsl_hat_trie.nix {};
 
+    prometheus-cpp = callPackage ./deps/prometheus-cpp.nix {};
+
     # Newer then stable, often forks with additional cmake support
     binaryen_cmake      = callPackage ./deps/binaryen.nix {};
     gtest_cmake         = callPackage ./deps/googletest.nix {};