nix/pkgs: add bazel-run userenv

nix/pkgs/bazel-run.nix

@@ -0,0 +1,19 @@
+{ pkgs, ... }:
+let
+  bazelTop = pkgs.buildFHSUserEnv {
+    name = "bazel-wrap";
+    targetPkgs = pkgs: [
+      (pkgs.bazel.override { enableNixHacks = true; })
+      pkgs.adoptopenjdk-hotspot-bin-13
+      pkgs.zlib
+      pkgs.python
+      pkgs.curl
+      pkgs.nodejs
+      pkgs.yarn
+      pkgs.git
+      pkgs.jetbrains.idea-community
+      pkgs.gcc
+    ];
+  };
+in
+  bazelTop // { override = x: bazelTop; }

nix/pkgs/default.nix

@@ -3,6 +3,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 args: {
+  bazel-run = import ./bazel-run.nix args;
   javaws-env = import ./javaws-env.nix args;
   plex-pass = import ./plex-pass.nix args;
   secretsync = import ./secretsync args;

ops/nixos/lib/hgrc

@@ -59,4 +59,4 @@ amend =
 evolve =
 topic =
 hggit =
-purge =
+purge =