Add gosu

pkgs/tools/misc/gosu/default.nix

@@ -0,0 +1,24 @@
+{ stdenv, buildGoPackage, fetchgit, fetchhg, fetchbzr, fetchsvn }:
+
+buildGoPackage rec {
+  name = "gosu-${version}";
+  version = "2017-05-09";
+  rev = "e87cf95808a7b16208515c49012aa3410bc5bba8";
+
+  goPackagePath = "github.com/tianon/gosu";
+
+  src = fetchgit {
+    inherit rev;
+    url = "https://github.com/tianon/gosu";
+    sha256 = "1qp1cfx0hrr4qlnh7rhjb4xlxv9697flmgzzl6jcdkrpk1f0bz8m";
+  };
+
+  goDeps = ./deps.nix;
+
+  meta = {
+    description= "Tool that avoids TTY and signal-forwarding behavior of sudo and su";
+    homepage = "https://github.com/tianon/gosu";
+    licence = stdenv.lib.licenses.gpl3;
+    platforms = stdenv.lib.platforms.linux;
+  };
+}

pkgs/tools/misc/gosu/deps.nix

@@ -0,0 +1,11 @@
+[
+  {
+    goPackagePath = "github.com/opencontainers/runc";
+    fetch = {
+      type = "git";
+      url = "https://github.com/opencontainers/runc";
+      rev = "5274430fee9bc930598cfd9c9dbd33213f79f96e";
+      sha256 = "149057gm2y1mc45s7bh43c1ngjg1m54jkpaxw534ir9v5mb1zsxx";
+    };
+  }
+]

pkgs/top-level/all-packages.nix

@@ -1081,6 +1081,8 @@ with pkgs;
 
   gorilla-bin = callPackage ../tools/security/gorilla-bin { };
 
+  gosu = callPackage ../tools/misc/gosu { };
+
   gringo = callPackage ../tools/misc/gringo { };
 
   gti = callPackage ../tools/misc/gti { };