serfdom: Migrate to go-packages

pkgs/servers/serfdom/default.nix

@@ -1,28 +0,0 @@
-{ lib, goPackages, fetchFromGitHub }:
-
-with goPackages;
-
-buildGoPackage rec {
-  version = "0.6.4";
-  name = "serfdom-${version}";
-  goPackagePath = "github.com/hashicorp/serf";
-
-  src = fetchFromGitHub {
-    owner = "hashicorp";
-    repo = "serf";
-    rev = "v${version}";
-    sha256 = "1fhz8wrvsmgaky22n255w9hkyfph2n45c47ivdyzrrxisg5j2438";
-  };
-
-  buildInputs = [ cli mapstructure memberlist_v2 logutils go-syslog mdns columnize circbuf ugorji.go ];
-
-  dontInstallSrc = true;
-
-  meta = with lib; {
-    description = "A service discovery and orchestration tool that is decentralized, highly available, and fault tolerant";
-    homepage = http://www.serfdom.io/;
-    license = licenses.mpl20;
-    maintainers = with maintainers; [ msackman cstrahan ];
-    platforms = platforms.unix;
-  };
-}

pkgs/top-level/all-packages.nix

@@ -9328,7 +9328,7 @@ let
 
   shairport-sync = callPackage ../servers/shairport-sync { };
 
-  serfdom = callPackage ../servers/serfdom { };
+  serfdom = pkgs.goPackages.serf.bin // { outputs = [ "bin" ]; };
 
   seyren = callPackage ../servers/monitoring/seyren { };
 

pkgs/top-level/go-packages.nix

@@ -2489,17 +2489,12 @@ let
     buildInputs = [ armon.go-metrics net-rpc-msgpackrpc yamux ];
   };
 
-  serf = buildGoPackage rec {
+  serf = buildFromGitHub {
     rev = "668982d8f90f5eff4a766583c1286393c1d27f68";
-    name = "serf-${stdenv.lib.strings.substring 0 7 rev}";
-    goPackagePath = "github.com/hashicorp/serf";
-
-    src = fetchFromGitHub {
-      inherit rev;
+    date = "2015-05-15";
     owner  = "hashicorp";
     repo   = "serf";
     sha256 = "1h05h5xhaj27r1mh5zshnykax29lqjhfc0bx4v9swiwb873c24qk";
-    };
 
     buildInputs = [
       circbuf armon.go-metrics ugorji.go go-syslog logutils mdns memberlist