From e95f17e2720e67e2eabd59d7754c814d3e27a0b2 Mon Sep 17 00:00:00 2001
From: adisbladis <adisbladis@gmail.com>
Date: Wed, 11 Jul 2018 15:58:38 +0800
Subject: [PATCH 1/2] buildGoPackage: Dont copy sources to $out

Some sources are quite large and they don't seem to offer much value
---
 pkgs/development/go-modules/generic/default.nix | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/pkgs/development/go-modules/generic/default.nix b/pkgs/development/go-modules/generic/default.nix
index 77c2687e2911..bd047da4c919 100644
--- a/pkgs/development/go-modules/generic/default.nix
+++ b/pkgs/development/go-modules/generic/default.nix
@@ -176,15 +176,6 @@ go.stdenv.mkDerivation (
   installPhase = args.installPhase or ''
     runHook preInstall
 
-    mkdir -p $out
-    pushd "$NIX_BUILD_TOP/go"
-    while read f; do
-      echo "$f" | grep -q '^./\(src\|pkg/[^/]*\)/${goPackagePath}' || continue
-      mkdir -p "$(dirname "$out/share/go/$f")"
-      cp "$NIX_BUILD_TOP/go/$f" "$out/share/go/$f"
-    done < <(find . -type f)
-    popd
-
     mkdir -p $bin
     dir="$NIX_BUILD_TOP/go/bin"
     [ -e "$dir" ] && cp -r $dir $bin

From eb31dc6316e2524a50595bb40cb5cc156261756f Mon Sep 17 00:00:00 2001
From: adisbladis <adisbladis@gmail.com>
Date: Wed, 11 Jul 2018 20:40:14 +0800
Subject: [PATCH 2/2] go-ethereum: Use standard buildGoPackage outputs

buildGoPackage no longer copy sources to $out
---
 pkgs/applications/altcoins/go-ethereum.nix | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/pkgs/applications/altcoins/go-ethereum.nix b/pkgs/applications/altcoins/go-ethereum.nix
index 74d38b59fc23..79c8e0dfde8a 100644
--- a/pkgs/applications/altcoins/go-ethereum.nix
+++ b/pkgs/applications/altcoins/go-ethereum.nix
@@ -12,17 +12,6 @@ buildGoPackage rec {
   # Fixes Cgo related build failures (see https://github.com/NixOS/nixpkgs/issues/25959 )
   hardeningDisable = [ "fortify" ];
 
-  # Only install binaries in $out, source is not interesting and takes ~50M
-  outputs = [ "out" ];
-  preFixup = ''
-    export bin="''${out}"
-  '';
-  installPhase = ''
-    mkdir -p $out/bin $out
-    dir="$NIX_BUILD_TOP/go/bin"
-    [ -e "$dir" ] && cp -r $dir $out
-  '';
-
   src = fetchFromGitHub {
     owner = "ethereum";
     repo = "go-ethereum";