Execute rootless Docker to build conda-forge recipes locally via `nix-shell`

shell.nix

# Copyright 2022 Ashwin V. Mohanan
# 
# 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
# 
#    http://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.

{ pkgs ? import <nixpkgs> {} }:

pkgs.mkShell {
  buildInputs = [
    pkgs.docker
    # pkgs.python39
  ];

  shellHook = ''
    dockerd-rootless 2> /dev/null &
    export DOCKER_HOST=unix://$XDG_RUNTIME_DIR/docker.sock
    mkdir -p build_artifacts
    chmod 777 build_artifacts
    python build-locally.py
  '';

}