Port go-repo-root to buildGoPackage

pkgs/development/tools/misc/go-repo-root/default.nix

@@ -1,28 +1,21 @@
-{ stdenv, lib, go, fetchgit, fetchhg, fetchFromGitHub }:
+{ lib, goPackages, fetchFromGitHub }:
 
 let
   version = "0.0.1";
 in
 
-with lib;
-stdenv.mkDerivation {
+with lib; with goPackages;
+buildGoPackage rec {
   name = "go-repo-root-${version}";
-
-  src = import ./deps.nix {
-    inherit stdenv lib fetchhg fetchFromGitHub;
+  goPackagePath = "github.com/cstrahan/go-repo-root";
+  src = fetchFromGitHub {
+    owner = "cstrahan";
+    repo = "go-repo-root";
+    rev = "90041e5c7dc634651549f96814a452f4e0e680f9";
+    sha256 = "1rlzp8kjv0a3dnfhyqcggny0ad648j5csr2x0siq5prahlp48mg4";
   };
 
-  buildInputs = [ go ];
-
-  buildPhase = ''
-    export GOPATH=$src
-    go build -v -o go-repo-root github.com/cstrahan/go-repo-root
-  '';
-
-  installPhase = ''
-    mkdir -p $out/bin
-    cp go-repo-root $out/bin
-  '';
+  buildInputs = [ tools ];
 
   meta = with lib; {
     homepage    = "https://github.com/cstrahan/go-repo-root";

pkgs/development/tools/misc/go-repo-root/deps.nix

@@ -1,67 +0,0 @@
-{ stdenv, lib, fetchFromGitHub, fetchhg }:
-
-let
-  goDeps = [
-    {
-      root = "code.google.com/p/go.net";
-      src = fetchhg {
-        url = "http://code.google.com/p/go.net";
-        rev = "ad01a6fcc8a19d3a4478c836895ffe883bd2ceab";
-        sha256 = "0s0aa8hxrpggn6wwx4x591k6abvawrmhsk8ji327pgj08fdy3ahq";
-      };
-    }
-    {
-      root = "code.google.com/p/go.text";
-      src = fetchhg {
-        url = "http://code.google.com/p/go.text";
-        rev = "12288f41f508af9490f03a9780afa295c9b0a063";
-        sha256 = "17kr0h79pznb3nn5znbh1d7dinmqjwvg5iqqk4l05569q50gqwww";
-      };
-    }
-    {
-      root = "code.google.com/p/go.tools";
-      src = fetchhg {
-        url = "http://code.google.com/p/go.tools";
-        rev = "140fcaadc5860b1a014ec69fdeec807fe3b787e8";
-        sha256 = "1vgz4kxy0p56qh6pfbs2c68156hakgx4cmrci9jbg7lnrdaz4y56";
-      };
-    }
-    {
-      root = "code.google.com/p/goauth2";
-      src = fetchhg {
-        url = "http://code.google.com/p/goauth2";
-        rev = "afe77d958c701557ec5dc56f6936fcc194d15520";
-        sha256 = "0xgkgcb97hv2rvzvh21rvydq5cc83j7sdsdb1chrymq8k7l4dzc1";
-      };
-    }
-    {
-      root = "code.google.com/p/google-api-go-client";
-      src = fetchhg {
-        url = "http://code.google.com/p/google-api-go-client";
-        rev = "e1c259484b495133836706f46319f5897f1e9bf6";
-        sha256 = "051dqhjhp3bz2xp7lv9v60xlmphbxj1vyc46wg8v74yjvqvsiwzd";
-      };
-    }
-    {
-      root = "github.com/cstrahan/go-repo-root";
-      src = fetchFromGitHub {
-        owner = "cstrahan";
-        repo = "go-repo-root";
-        rev = "90041e5c7dc634651549f96814a452f4e0e680f9";
-        sha256 = "1rlzp8kjv0a3dnfhyqcggny0ad648j5csr2x0siq5prahlp48mg4";
-      };
-    }
-  ];
-
-in
-
-stdenv.mkDerivation rec {
-  name = "go-deps";
-
-  buildCommand =
-    lib.concatStrings
-      (map (dep: ''
-              mkdir -p $out/src/`dirname ${dep.root}`
-              ln -s ${dep.src} $out/src/${dep.root}
-            '') goDeps);
-}

pkgs/top-level/go-packages.nix

@@ -67,6 +67,18 @@ let self = _self // overrides; _self = with self; {
     doCheck = false;
   };
 
+  tools = buildGoPackage rec {
+    rev = "140fcaadc5860b1a014ec69fdeec807fe3b787e8";
+    name = "go.tools-${stdenv.lib.strings.substring 0 7 rev}";
+    goPackagePath = "code.google.com/p/go.tools";
+    src = fetchhg {
+      inherit rev;
+      url = "http://code.google.com/p/go.tools";
+      sha256 = "1vgz4kxy0p56qh6pfbs2c68156hakgx4cmrci9jbg7lnrdaz4y56";
+    };
+    subPackages = [ "go/vcs" ];
+  };
+
   ## THIRD PARTY
 
   binarydist = buildGoPackage rec {