#!/usr/bin/env bash
# This script dispatches invocations transparently to programs instantiated from
# Nix.
#
# To add a new tool, insert it into the case statement below by setting `attr`
# to the key in nixpkgs which represents the program you want to run.
set -ueo pipefail

TARGET_TOOL=$(basename "$0")

case "${TARGET_TOOL}" in
  deploy-diogenes)
    attr="users.wpcarro.nixos.deploy-diogenes"
    ;;
  import-gpg)
    attr="users.wpcarro.configs.import-gpg"
    ;;
  export-gpg)
    attr="users.wpcarro.configs.export-gpg"
    ;;
  *)
    echo "The tool '${TARGET_TOOL}' is currently not installed in this repository."
    exit 1
    ;;
esac

result=$(nix-build --no-out-link --attr "${attr}" "${REPO_ROOT}")
PATH="${result}/bin:$PATH"

exec "${TARGET_TOOL}" "${@}"