Source code for my blog post "Bundling Scripts with Nix"

flake.lock

{
  "nodes": {
    "flake-utils": {
      "inputs": {
        "systems": "systems"
      },
      "locked": {
        "lastModified": 1701680307,
        "narHash": "sha256-kAuep2h5ajznlPMD9rnQyffWG8EM/C73lejGofXvdM8=",
        "owner": "numtide",
        "repo": "flake-utils",
        "rev": "4022d587cbbfd70fe950c1e2083a02621806a725",
        "type": "github"
      },
      "original": {
        "id": "flake-utils",
        "type": "indirect"
      }
    },
    "nixpkgs": {
      "locked": {
        "lastModified": 1702272962,
        "narHash": "sha256-D+zHwkwPc6oYQ4G3A1HuadopqRwUY/JkMwHz1YF7j4Q=",
        "owner": "NixOS",
        "repo": "nixpkgs",
        "rev": "e97b3e4186bcadf0ef1b6be22b8558eab1cdeb5d",
        "type": "github"
      },
      "original": {
        "id": "nixpkgs",
        "type": "indirect"
      }
    },
    "root": {
      "inputs": {
        "flake-utils": "flake-utils",
        "nixpkgs": "nixpkgs"
      }
    },
    "systems": {
      "locked": {
        "lastModified": 1681028828,
        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
        "owner": "nix-systems",
        "repo": "default",
        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
        "type": "github"
      },
      "original": {
        "owner": "nix-systems",
        "repo": "default",
        "type": "github"
      }
    }
  },
  "root": "root",
  "version": 7
}

flake.nix

# This is free and unencumbered software released into the public domain.
#
# Anyone is free to copy, modify, publish, use, compile, sell, or
# distribute this software, either in source code form or as a compiled
# binary, for any purpose, commercial or non-commercial, and by any
# means.
#
# In jurisdictions that recognize copyright laws, the author or authors
# of this software dedicate any and all copyright interest in the
# software to the public domain. We make this dedication for the benefit
# of the public at large and to the detriment of our heirs and
# successors. We intend this dedication to be an overt act of
# relinquishment in perpetuity of all present and future rights to this
# software under copyright law.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
#
# For more information, please refer to <http://unlicense.org/>

{
  inputs = {
    nixpkgs.url = "nixpkgs";
    flake-utils.url = "flake-utils";
  };

  outputs = { self, nixpkgs, flake-utils, ... }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs { inherit system; };
      in
      {
        packages.hello = pkgs.writeTextFile {
          name = "my-hello-script";
          executable = true;
          destination = "/bin/my-hello-script";
          text =
            let
              binPath = pkgs.lib.makeBinPath [
                pkgs.hello
                pkgs.coreutils
              ];
            in ''
              #!${pkgs.runtimeShell}
              export PATH="${binPath}:$PATH"
            '' + builtins.readFile ./my-hello-script.sh;
        };
      }
    );
}

my-hello-script.sh

#!/usr/bin/env bash
# my-hello-script.sh
set -euo pipefail
hello --greeting='Hello, World!' "$@"