Merge pull request #300 from Lykos153/feature/bundlers

Add option perSystem.<>.bundlers

dev/tests/eval-tests.nix

@@ -83,6 +83,18 @@ rec {
       };
     };
 
+  bundlersExample = mkFlake
+    { inputs.self = { }; }
+    {
+      imports = [ flake-parts.flakeModules.bundlers ];
+      systems = [ "a" "b" ];
+      perSystem = { system, ... }: {
+        packages.hello = pkg system "hello";
+        bundlers.toTarball = drv: pkg system "tarball-${drv.name}";
+        bundlers.toAppImage = drv: pkg system "appimage-${drv.name}";
+      };
+    };
+
   modulesFlake = mkFlake
     {
       inputs.self = { };
@@ -251,6 +263,9 @@ rec {
       };
     };
 
+    assert bundlersExample.bundlers.a.toTarball (pkg "a" "hello") == pkg "a" "tarball-hello";
+    assert bundlersExample.bundlers.b.toAppImage (pkg "b" "hello") == pkg "b" "appimage-hello";
+
     # - exported package becomes part of overlay.
     # - perSystem is invoked for the right system, when system is non-memoized
     assert nixpkgsWithEasyOverlay.hello == pkg "x86_64-linux" "hello";

extras/bundlers.nix

@@ -0,0 +1,28 @@
+{ lib
+, flake-parts-lib
+, ...
+}:
+let
+  inherit
+    (lib)
+    mkOption
+    types
+    ;
+  inherit
+    (flake-parts-lib)
+    mkTransposedPerSystemModule
+    ;
+in
+mkTransposedPerSystemModule {
+  name = "bundlers";
+  option = mkOption {
+    type = types.lazyAttrsOf (types.functionTo types.package);
+    default = { };
+    description = ''
+      An attribute set of bundlers to be used by [`nix bundle`](https://nixos.org/manual/nix/stable/command-ref/new-cli/nix3-bundle.html).
+
+      `nix bundle --bundler .#<name>` <derivation> will bundle <derivation> using the bundler `bundlers.<name>`.
+    '';
+  };
+  file = ./bundlers.nix;
+}

flake.nix

@@ -50,6 +50,7 @@
         flakeModules = ./extras/flakeModules.nix;
         modules = ./extras/modules.nix;
         partitions = ./extras/partitions.nix;
+        bundlers = ./extras/bundlers.nix;
       };
     in
     lib.mkFlake { inherit inputs; } {