Add hydraJobs.tests.nix-serve

This includes https://github.com/NixOS/nixpkgs/pull/342817

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/c3d4ac725177c030b1e289015989da2ad9d56af0' (2024-08-15)
  → 'github:NixOS/nixpkgs/3a458f7c763ca62c6bf454b8d828bd86b7250671' (2024-09-18)

flake.lock

@@ -80,16 +80,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1723688146,
-        "narHash": "sha256-sqLwJcHYeWLOeP/XoLwAtYjr01TISlkOfz+NG82pbdg=",
+        "lastModified": 1726674819,
+        "narHash": "sha256-qyfnYJsZq8cBBat6oGjHnu5MaWbNw47Ph31fX0iWPIU=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "c3d4ac725177c030b1e289015989da2ad9d56af0",
+        "rev": "3a458f7c763ca62c6bf454b8d828bd86b7250671",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-24.05",
+        "ref": "release-24.05",
         "repo": "nixpkgs",
         "type": "github"
       }

flake.nix

@@ -1,7 +1,7 @@
 {
   description = "The purely functional package manager";
 
-  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05";
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/release-24.05";
   inputs.nixpkgs-regression.url = "github:NixOS/nixpkgs/215d4d0fd80ca5163643b03a33fde804a29cc1e2";
   inputs.nixpkgs-23-11.url = "github:NixOS/nixpkgs/a62e6edd6d5e1fa0329b8653c801147986f8d446";
   inputs.flake-compat = { url = "github:edolstra/flake-compat"; flake = false; };
@@ -139,6 +139,12 @@
 
           nix = final.nixComponents.nix;
 
+          nix-serve =
+            prev.nix-serve.override {
+              # undo potential version pinning
+              nix = final.nix;
+            };
+
           # See https://github.com/NixOS/nixpkgs/pull/214409
           # Remove when fixed in this flake's nixpkgs
           pre-commit =

package.nix

@@ -27,6 +27,7 @@
 , mdbook
 , mdbook-linkcheck
 , mercurial
+, nix-perl-bindings
 , openssh
 , openssl
 , pkg-config
@@ -334,6 +335,10 @@ in {
 
   hardeningDisable = lib.optional stdenv.hostPlatform.isStatic "pie";
 
+  passthru = lib.optionalAttrs (stdenv.buildPlatform.canExecute stdenv.hostPlatform) {
+    perl-bindings = nix-perl-bindings;
+  };
+
   meta = {
     platforms = lib.platforms.unix ++ lib.platforms.windows;
     mainProgram = "nix";

packaging/everything.nix

@@ -122,5 +122,8 @@
         nix-main-c
       ;
     };
+  }
+  // lib.optionalAttrs (stdenv.buildPlatform.canExecute stdenv.hostPlatform) {
+    perl-bindings = nix-perl-bindings;
   };
 })

tests/nixos/default.nix

@@ -160,3 +160,10 @@ in
 
   cgroups = runNixOSTestFor "x86_64-linux" ./cgroups;
 }
+// (let
+  inherit (nixpkgsFor."x86_64-linux".native) nixosTests;
+in {
+  nix-serve =
+    assert nixosTests.nix-serve.config.nodes.machine.services.nix-serve.package.nix == self.packages.x86_64-linux.nix;
+    nixosTests.nix-serve;
+})