1  #!/usr/bin/env bash
 2  # This script dispatches invocations transparently to programs instantiated from
 3  # Nix.
 4  #
 5  # To add a new tool, insert it into the case statement below by setting `attr`
 6  # to the key in nixpkgs which represents the program you want to run.
 7  set -ueo pipefail
 8  
 9  readonly REPO_ROOT=$(dirname "$0")/..
10  TARGET_TOOL=$(basename "$0")
11  
12  case "${TARGET_TOOL}" in
13      bus)
14          attr="tools.bus"
15          ;;
16      k8s.infra)
17          attr="tools.k8s_infra"
18          ;;
19      *)
20          echo "The tool '${TARGET_TOOL}' is currently not installed in this repository."
21          exit 1
22          ;;
23  esac
24  
25  result=$(nix-build --no-out-link --attr "${attr}" "${REPO_ROOT}")
26  PATH="${result}/bin:$PATH"
27  
28  exec "${TARGET_TOOL}" "${@}"