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My NixOS systems configurations.
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__dispatch.sh (723B)

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