refactor: flake.parts!

.github/workflows/build.yml

@@ -27,24 +27,6 @@ jobs:
     - run: nix build '.#rimgo'
     - run: nix build '.#website-docs-nifoc-pw'
 
-  build-x86_64-darwin:
-    runs-on: macos-latest
-    steps:
-    - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v20
-      with:
-        nix_path: nixpkgs=channel:nixpkgs-unstable
-    - uses: cachix/cachix-action@v12
-      with:
-        name: nifoc
-        authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
-    - run: nix build '.#cliclick'
-    - run: nix build '.#fennel-ls'
-    - run: nix build '.#liblpeg-darwin'
-    - run: nix build '.#neovim-nightly'
-    - run: nix build '.#phantomjs'
-    - run: nix build '.#q'
-
   build-arm64-linux:
     runs-on: buildjet-2vcpu-ubuntu-2204-arm
     steps:

flake.lock

@@ -1,5 +1,23 @@
 {
   "nodes": {
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
+      "locked": {
+        "lastModified": 1683560683,
+        "narHash": "sha256-XAygPMN5Xnk/W2c1aW0jyEa6lfMDZWlQgiNtmHXytPc=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "006c75898cf814ef9497252b022e91c946ba8e17",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
     "flake-utils": {
       "locked": {
         "lastModified": 1667395993,
@@ -54,8 +72,27 @@
         "type": "github"
       }
     },
+    "nixpkgs-lib": {
+      "locked": {
+        "dir": "lib",
+        "lastModified": 1682879489,
+        "narHash": "sha256-sASwo8gBt7JDnOOstnps90K1wxmVfyhsTPPNTGBPjjg=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "da45bf6ec7bbcc5d1e14d3795c025199f28e0de0",
+        "type": "github"
+      },
+      "original": {
+        "dir": "lib",
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
+        "flake-parts": "flake-parts",
         "neovim-flake": "neovim-flake",
         "nixpkgs": "nixpkgs"
       }

flake.nix

@@ -3,31 +3,55 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
 
+    flake-parts.url = "github:hercules-ci/flake-parts";
+
     neovim-flake = {
       url = "github:neovim/neovim?dir=contrib";
       inputs.nixpkgs.follows = "nixpkgs";
     };
   };
 
-  outputs = inputs@{ self, nixpkgs, ... }: {
-    packages = nixpkgs.lib.genAttrs
-      [
+  outputs = inputs@{ flake-parts, ... }:
+    flake-parts.lib.mkFlake { inherit inputs; } {
+      systems = [
         "aarch64-darwin"
         "x86_64-darwin"
-        "aarch64-linux"
         "x86_64-linux"
-      ]
-      (system: import ./packages.nix {
-        inherit system;
-        inherit (nixpkgs) lib;
+        "aarch64-linux"
+      ];
 
-        pkgs = nixpkgs.legacyPackages.${system};
+      imports = [
+        flake-parts.flakeModules.easyOverlay
+      ];
 
-        otherPkgs = {
-          neovim = inputs.neovim-flake.packages.${system};
-        };
-      });
+      perSystem = { inputs', system, config, pkgs, lib, ... }: {
+        packages =
+          let
+            darwinPackages =
+              if lib.hasSuffix "darwin" system then rec {
+                agilebits-op = import ./packages/agilebits-op.nix { inherit pkgs lib; };
+                cliclick = import ./packages/cliclick.nix { inherit pkgs lib; };
+                liblpeg = import ./packages/liblpeg-darwin.nix { inherit pkgs; };
+                neovim-nightly = import ./packages/neovim-nightly.nix { inherit (inputs'.neovim-flake.packages) neovim; inherit liblpeg lib; };
+                phantomjs = import ./packages/phantomjs.nix { inherit pkgs lib; };
+              } else {
+                neovim-nightly = import ./packages/neovim-nightly.nix { inherit (inputs'.neovim-flake.packages) neovim; inherit lib; };
+              };
+          in
+          {
+            anonymous-overflow = import ./packages/anonymous-overflow.nix { inherit pkgs lib; };
+            fennel-ls = import ./packages/fennel-ls.nix { inherit pkgs lib; };
+            nitter-unstable = import ./packages/nitter-unstable.nix { inherit pkgs lib; };
+            q = import ./packages/q.nix { inherit pkgs lib; };
+            rimgo = import ./packages/rimgo.nix { inherit pkgs lib; };
+            website-docs-nifoc-pw = import ./packages/website-docs-nifoc-pw.nix { inherit pkgs; };
+          } // darwinPackages;
 
-    overlay = import ./overlay.nix;
-  };
+        overlayAttrs = config.packages;
+      };
+
+      flake = {
+        overlay = inputs.self.overlays.default;
+      };
+    };
 }

overlay.nix

@@ -1,19 +0,0 @@
-_: super:
-
-let
-  custom = super.callPackage ./packages.nix { };
-in
-{
-  inherit (custom) agilebits-op;
-  inherit (custom) anonymous-overflow;
-  inherit (custom) cliclick;
-  inherit (custom) fennel-ls;
-  inherit (custom) nitter-unstable;
-  inherit (custom) phantomjs;
-  inherit (custom) q;
-  inherit (custom) rimgo;
-  inherit (custom) website-docs-nifoc-pw;
-
-  inherit (custom) liblpeg-darwin;
-  inherit (custom) neovim-nightly;
-}

packages.nix

@@ -1,16 +0,0 @@
-{ system, lib, pkgs, otherPkgs }:
-
-rec {
-  agilebits-op = import ./packages/agilebits-op.nix { inherit system lib pkgs; };
-  anonymous-overflow = import ./packages/anonymous-overflow.nix { inherit system lib pkgs; };
-  cliclick = import ./packages/cliclick.nix { inherit system lib pkgs; };
-  fennel-ls = import ./packages/fennel-ls.nix { inherit system lib pkgs; };
-  nitter-unstable = import ./packages/nitter-unstable.nix { inherit system lib pkgs; };
-  phantomjs = import ./packages/phantomjs.nix { inherit system lib pkgs; };
-  q = import ./packages/q.nix { inherit system lib pkgs; };
-  rimgo = import ./packages/rimgo.nix { inherit system lib pkgs; };
-  website-docs-nifoc-pw = import ./packages/website-docs-nifoc-pw.nix { inherit system lib pkgs; };
-
-  liblpeg-darwin = import ./packages/liblpeg-darwin.nix { inherit system lib pkgs; };
-  neovim-nightly = import ./packages/neovim-nightly.nix { inherit system lib pkgs otherPkgs liblpeg-darwin; };
-}

packages/agilebits-op.nix

@@ -1,4 +1,4 @@
-{ system, lib, pkgs }:
+{ pkgs, lib }:
 
 pkgs.stdenv.mkDerivation rec {
   pname = "agilebits-op";

packages/anonymous-overflow.nix

@@ -1,4 +1,4 @@
-{ system, lib, pkgs }:
+{ pkgs, lib }:
 
 pkgs.buildGoModule rec {
   pname = "anonymous-overflow";

packages/cliclick.nix

@@ -1,4 +1,4 @@
-{ system, lib, pkgs }:
+{ pkgs, lib }:
 
 pkgs.stdenv.mkDerivation rec {
   pname = "cliclick";

packages/fennel-ls.nix

@@ -1,4 +1,4 @@
-{ system, lib, pkgs }:
+{ pkgs, lib }:
 
 pkgs.stdenv.mkDerivation rec {
   pname = "fennel-ls";

packages/liblpeg-darwin.nix

@@ -1,4 +1,4 @@
-{ system, lib, pkgs }:
+{ pkgs }:
 
 pkgs.stdenv.mkDerivation {
   pname = "liblpeg";

packages/neovim-nightly.nix

@@ -1,12 +1,8 @@
-{ pkgs, otherPkgs, lib, liblpeg-darwin, ... }:
+{ neovim, liblpeg ? null, lib, ... }:
 
-let
-  inherit (pkgs.stdenv) isDarwin;
-  inherit (lib) optionals;
-in
-otherPkgs.neovim.neovim.overrideAttrs (oa: {
-  nativeBuildInputs = oa.nativeBuildInputs ++ optionals isDarwin [
-    liblpeg-darwin
+neovim.overrideAttrs (oa: {
+  nativeBuildInputs = oa.nativeBuildInputs ++ lib.optionals (liblpeg != null) [
+    liblpeg
   ];
 
   patches = builtins.filter

packages/nitter-unstable.nix

@@ -1,4 +1,4 @@
-{ system, lib, pkgs }:
+{ pkgs, lib }:
 
 let
   nimPackages = pkgs.nimPackages;

packages/phantomjs.nix

@@ -1,4 +1,4 @@
-{ system, lib, pkgs }:
+{ pkgs, lib }:
 
 pkgs.stdenv.mkDerivation rec {
   pname = "phantomjs";

packages/q.nix

@@ -1,4 +1,4 @@
-{ system, lib, pkgs }:
+{ pkgs, lib }:
 
 pkgs.buildGoModule rec {
   pname = "q";

packages/rimgo.nix

@@ -1,4 +1,4 @@
-{ system, lib, pkgs }:
+{ pkgs, lib }:
 
 pkgs.buildGoModule rec {
   pname = "rimgo";

packages/website-docs-nifoc-pw.nix

@@ -1,6 +1,6 @@
-{ system, lib, pkgs }:
+{ pkgs }:
 
-pkgs.stdenv.mkDerivation rec {
+pkgs.stdenv.mkDerivation {
   pname = "website-docs-nifoc-pw";
   version = "2021-08-30";