prom2json: fold into go-packages.nix

pkgs/servers/monitoring/prometheus/prom2json/default.nix

@@ -1,30 +0,0 @@
-{ goPackages, lib, fetchFromGitHub }:
-
-let self = goPackages.buildGoPackage rec {
-  name = "prom2json-${rev}";
-  rev = "0.1.0";
-  goPackagePath = "github.com/prometheus/prom2json";
-
-  src = fetchFromGitHub {
-    owner = "prometheus";
-    repo = "prom2json";
-    inherit rev;
-    sha256 = "0wwh3mz7z81fwh8n78sshvj46akcgjhxapjgfic5afc4nv926zdl";
-  };
-
-  buildInputs = with goPackages; [
-    golang_protobuf_extensions
-    prometheus.client_golang
-    protobuf
-  ];
-
-  meta = with lib; {
-    description = "A tool to scrape a Prometheus client and dump the result as JSON";
-    homepage = https://github.com/prometheus/prom2json;
-    license = licenses.asl20;
-    maintainers = with maintainers; [ benley ];
-    platforms = platforms.unix;
-  };
-};
-
-in self.bin

pkgs/top-level/all-packages.nix

@@ -9196,8 +9196,7 @@ let
 
   postgresql_jdbc = callPackage ../servers/sql/postgresql/jdbc { };
 
-  prom2json = callPackage ../servers/monitoring/prometheus/prom2json { };
+  prom2json = goPackages.prometheus.prom2json.bin;
-
   prometheus = goPackages.prometheus.prometheus.bin;
   prometheus-alertmanager = goPackages.prometheus.alertmanager.bin;
   prometheus-cli = goPackages.prometheus.cli.bin;

pkgs/top-level/go-packages.nix

@@ -2056,6 +2056,27 @@ let
     sha256 = "0pj3gzw9b58l72w0rkpn03ayssglmqfmyxghhfad6mh0b49dvj3r";
   };
 
+  prometheus.prom2json = buildFromGitHub {
+    rev = "0.1.0";
+    owner = "prometheus";
+    repo = "prom2json";
+    sha256 = "0wwh3mz7z81fwh8n78sshvj46akcgjhxapjgfic5afc4nv926zdl";
+
+    buildInputs = [
+      golang_protobuf_extensions
+      prometheus.client_golang
+      protobuf
+    ];
+
+    meta = with stdenv.lib; {
+      description = "Tool to scrape a Prometheus client and dump the result as JSON";
+      homepage = https://github.com/prometheus/prom2json;
+      license = licenses.asl20;
+      maintainers = with maintainers; [ benley ];
+      platforms = platforms.unix;
+    };
+  };
+
   prometheus.prometheus = buildGoPackage rec {
     name = "prometheus-${version}";
     version = "0.15.1";