feat(tools/nixery): Absorb Nixery into depot r/3978

This absorbs a josh-filtered Nix subtree into depot, at
//tools/nixery.

This subtree was created through `josh-filter ':prefix=tools/nixery'`,
which allows a filter on tools/nixery to yield the same commit hashes
as the original Nixery repository (allowing for history continuity).

Change-Id: Icc1a99bf1248226b91f437b0a90361d36fb0d327

1 files changed, 24 insertions, 0 deletions

diff --git a/tools/nixery/shell.nix b/tools/nixery/shell.nix
new file mode 100644
index 000000000000..b37caa83ade3
--- /dev/null
+++ b/tools/nixery/shell.nix
@@ -0,0 +1,24 @@
+# Copyright 2019 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Configures a shell environment that builds required local packages to
+# run Nixery.
+{ pkgs ? import <nixpkgs> { } }:
+
+let nixery = import ./default.nix { inherit pkgs; };
+in pkgs.stdenv.mkDerivation {
+  name = "nixery-dev-shell";
+
+  buildInputs = with pkgs; [ jq nixery.nixery-prepare-image ];
+}