wip: flake support

flake.nix

@@ -0,0 +1,79 @@
+/* Usage example in flake.nix:
+
+  {
+    inputs = {
+      home-manager.url = "github:rycee/home-manager";
+      nix-doom-emacs.url = "github:vlaci/nix-doom-emacs/flake";
+      doomPrivateDir.url = "/path/to/doom.d";
+      doomPrivateDir.flake = false;
+    };
+
+    outputs = {
+      self,
+      nixpkgs,
+      home-manager,
+      nix-doom-emacs,
+      doomPrivateDir,
+      ...
+    }: {
+      nixosConfigurations.exampleHost = nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+        modules = [
+          home-manager.nixosModules.home-manager
+          {
+            home-manager.users.exampleUser = { pkgs, ... }: {
+              imports = [ nix-doom-emacs.hmModule ];
+              home.doom-emacs = {
+                enable = true;
+                inherit doomPrivateDir;
+              };
+            };
+          }
+        ];
+      };
+    };
+  }
+*/
+
+{
+  description = "nix-doom-emacs home-manager module";
+
+  inputs = {
+    doom-emacs.url = "github:hlissner/doom-emacs/develop";
+    doom-emacs.flake = false;
+    doom-snippets.url = "github:hlissner/doom-snippets";
+    doom-snippets.flake = false;
+    emacs-overlay.url = "github:nix-community/emacs-overlay";
+    emacs-overlay.flake = false;
+    emacs-so-long.url = "github:hlissner/emacs-so-long";
+    emacs-so-long.flake = false;
+    evil-markdown.url = "github:Somelauw/evil-markdown";
+    evil-markdown.flake = false;
+    evil-org-mode.url = "github:hlissner/evil-org-mode";
+    evil-org-mode.flake = false;
+    evil-quick-diff.url = "github:rgrinberg/evil-quick-diff";
+    evil-quick-diff.flake = false;
+    explain-pause-mode.url = "github:lastquestion/explain-pause-mode";
+    explain-pause-mode.flake = false;
+    "nix-straight.el".url = "github:vlaci/nix-straight.el/v2.1.0";
+    "nix-straight.el".flake = false;
+    nose.url= "github:emacsattic/nose";
+    nose.flake = false;
+    ob-racket.url = "github:xchrishawk/ob-racket";
+    ob-racket.flake = false;
+    org-mode.url = "github:emacs-straight/org-mode";
+    org-mode.flake = false;
+    org-yt.url = "github:TobiasZawada/org-yt";
+    org-yt.flake = false;
+    php-extras.url = "github:arnested/php-extras";
+    php-extras.flake = false;
+    "reveal.js".url = "github:hakimel/reveal.js";
+    "reveal.js".flake = false;
+    "rotate-text.el".url = "github:debug-ito/rotate-text.el";
+    "rotate-text.el".flake = false;
+  };
+
+  outputs = inputs: {
+      hmModule = import ./modules/home-manager.nix inputs;
+  };
+}

modules/home-manager.nix

@@ -0,0 +1,67 @@
+{ self, ... }@inputs:
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.programs.doom-emacs;
+  inherit (lib) literalExample mkEnableOption mkIf mkOption types;
+in
+{
+  options.programs.doom-emacs = {
+    enable = mkEnableOption "Doom Emacs configuration";
+    doomPrivateDir = mkOption {
+      description = ''
+        Path to your `.doom.d` directory.
+
+        The specified directory should  contain yoour `init.el`, `config.el` and
+        `packages.el` files.
+      '';
+    };
+    extraConfig = mkOption {
+      description = ''
+        Extra configuration options to pass to doom-emacs.
+
+        Elisp code set here will be appended at the end of `config.el`. This
+        option is useful for refering `nixpkgs` derivation in Emacs without the
+        need to install them globally.
+      '';
+      type = with types; lines;
+      default = "";
+      example = literalExample ''
+        (setq mu4e-mu-binary = "''${pkgs.mu}/bin/mu")
+      '';
+    };
+    extraPackages = mkOption {
+      description = ''
+        Extra packages to install.
+
+        List addition non-emacs packages here that ship elisp emacs bindings.
+      '';
+      type = with types; listOf package;
+      default = [ ];
+      example = literalExample "[ pkgs.mu ]";
+    };
+    package = mkOption {
+      internal = true;
+    };
+  };
+
+  config = mkIf cfg.enable (
+    let
+      emacs = pkgs.callPackage self {
+        extraPackages = (epkgs: cfg.extraPackages);
+        inherit (cfg) doomPrivateDir extraConfig;
+        dependencyOverrides = inputs;
+      };
+    in
+    {
+      home.file.".emacs.d/init.el".text = ''
+        (load "default.el")
+      '';
+      home.packages = with pkgs; [
+        emacs-all-the-icons-fonts
+      ];
+      programs.emacs.package = emacs;
+      programs.emacs.enable = true;
+      programs.doom-emacs.package = emacs;
+    }
+  );
+}