From cf5eb4882e1ec2f45d3dbfdabfb41ee0582c3de3 Mon Sep 17 00:00:00 2001
From: Jason Yundt <jason@jasonyundt.email>
Date: Sun, 4 Aug 2024 17:48:40 -0400
Subject: [PATCH] swapspace: add passthru.binlore

Consider this Nix expression:

  let
    pkgs = import /path/to/nixpkgs { };
  in

  pkgs.resholve.writeScript "mime-construct-binlore-test" {
    inputs = [ pkgs.swapspace ];
    interpreter = "${pkgs.lib.getExe pkgs.bash}";
  } ''
    swapspace --version
  ''

Before this change, that expression would fail to build because resholve
would think that swapspace might be able to execute its arguments. This
commit fixes that problem.
---
 pkgs/tools/admin/swapspace/default.nix | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/pkgs/tools/admin/swapspace/default.nix b/pkgs/tools/admin/swapspace/default.nix
index fa379e6a2d28..c7c453f05be5 100644
--- a/pkgs/tools/admin/swapspace/default.nix
+++ b/pkgs/tools/admin/swapspace/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, autoreconfHook, installShellFiles, util-linux }:
+{ lib, stdenv, fetchFromGitHub, autoreconfHook, installShellFiles, util-linux, binlore, swapspace }:
 
 stdenv.mkDerivation rec {
   pname = "swapspace";
@@ -35,6 +35,12 @@ stdenv.mkDerivation rec {
     install --mode=444 -D 'swapspace.service' "$out/etc/systemd/system/swapspace.service"
   '';
 
+  # Nothing in swapspace --help or swapspace’s man page mentions
+  # anything about swapspace executing its arguments.
+  passthru.binlore.out = binlore.synthesize swapspace ''
+    execer cannot bin/swapspace
+  '';
+
   meta = with lib; {
     description = "Dynamic swap manager for Linux";
     homepage = "https://github.com/Tookmund/Swapspace";