Merge pull request #267 from thiagokokada/refactor-flake-nix

Refactor flake.nix

checks.nix

@@ -2,6 +2,7 @@
 { self, nixpkgs, emacs-overlay, ... }@inputs:
 
 let
+  inherit (self.outputs.packages.${system}) doom-emacs-example;
   pkgs = import nixpkgs {
     inherit system;
     # we are not using emacs-overlay's flake.nix here,
@@ -32,13 +33,8 @@ in
       };
     };
   }).activationPackage;
-  init-example-el = self.outputs.package.${system} {
-    doomPrivateDir = ./test/doom.d;
-    dependencyOverrides = inputs;
-  };
-  init-example-el-emacsGit = self.outputs.package.${system} {
-    doomPrivateDir = ./test/doom.d;
-    dependencyOverrides = inputs;
+  init-example-el = doom-emacs-example;
+  init-example-el-emacsGit = doom-emacs-example.override {
     emacsPackages = with pkgs; emacsPackagesFor emacsGit;
   };
   init-example-el-splitdir = self.outputs.package.${system} {

default.nix

@@ -50,13 +50,13 @@
      See overrides.nix for addition examples.
 
      Example:
-       emacsPackagesOverlay = self: super: {
+       emacsPackagesOverlay = final: prev: {
          magit-delta = super.magit-delta.overrideAttrs (esuper: {
            buildInputs = esuper.buildInputs ++ [ pkgs.git ];
          });
        };
   */
-, emacsPackagesOverlay ? self: super: { }
+, emacsPackagesOverlay ? final: prev: { }
   /* Use bundled revision of github.com/nix-community/emacs-overlay
      as `emacsPackages`.
   */

flake.nix

@@ -2,8 +2,8 @@
 
    {
      inputs = {
-       home-manager.url = "github:rycee/home-manager";
-       nix-doom-emacs.url = "github:nix-community/nix-doom-emacs/flake";
+       home-manager.url = "github:nix-community/home-manager";
+       nix-doom-emacs.url = "github:nix-community/nix-doom-emacs";
      };
 
      outputs = {
@@ -88,18 +88,39 @@
     flake-compat.flake = false;
   };
 
-  outputs = { self, nixpkgs, flake-utils, emacs-overlay, ... }@inputs:
-    let inherit (flake-utils.lib) eachDefaultSystem eachSystem;
+  outputs = { self, nixpkgs, flake-utils, ... }@inputs:
+    let inherit (flake-utils.lib) eachDefaultSystem mkApp;
     in eachDefaultSystem (system:
       let pkgs = import nixpkgs { inherit system; };
       in {
-        devShell = pkgs.mkShell {
+        apps = {
+          default = self.outputs.apps.${system}.doom-emacs-example;
+          doom-emacs-example = mkApp {
+            drv = self.outputs.packages.${system}.doom-emacs-example;
+            exePath = "/bin/emacs";
+          };
+        };
+
+        devShells.default = pkgs.mkShell {
           buildInputs =
             [ (pkgs.python3.withPackages (ps: with ps; [ PyGithub ])) ];
         };
-        package = { dependencyOverrides ? { }, ... }@args:
-          pkgs.callPackage self
-          (args // { dependencyOverrides = (inputs // dependencyOverrides); });
+
+        package = { ... }@args:
+          pkgs.lib.warn ''
+            nix-doom-emacs no longer supports the deprecated `package` flake output.
+            It will be removed after the release of NixOS 23.05.
+
+            Please use `packages.${system}.default.override { ... }` instead!
+          ''
+          (pkgs.callPackage self args);
+
+        packages = {
+          default = self.outputs.packages.${system}.doom-emacs-example;
+          doom-emacs-example = pkgs.callPackage self {
+            doomPrivateDir = ./test/doom.d;
+          };
+        };
         checks = import ./checks.nix { inherit system; } inputs;
       }) // {
         hmModule = import ./modules/home-manager.nix inputs;

modules/home-manager.nix

@@ -87,10 +87,10 @@ in
         package customization.
       '';
       type = with types; overlayType;
-      default = self: super: {  };
-      defaultText = "self: super {  }";
+      default = final: prev: { };
+      defaultText = "final: prev: { }";
       example = literalExample ''
-        self: super: {
+        final: prev: {
           magit-delta = super.magit-delta.overrideAttrs (esuper: {
             buildInputs = esuper.buildInputs ++ [ pkgs.git ];
           });

overrides.nix

@@ -11,7 +11,7 @@ self: super: {
   doom-snippets = self.straightBuild {
     pname = "doom-snippets";
     postInstall = ''
-       cp -r *-mode $out/share/emacs/site-lisp
+      cp -r *-mode $out/share/emacs/site-lisp
     '';
   };