massive rewrite using flake-parts

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>

home/modules/baremacs.nix

@@ -1,166 +0,0 @@
-#modified version of home-manager emacs service module for personal use
-
-{ config, lib, pkgs, ... }:
-
-with lib;
-
-let
-  cfg = config.services.baremacs;
-  emacsCfg = config.programs.emacs;
-  emacsBinPath = "${cfg.package}/bin";
-
-  # Match the default socket path for the Emacs version so emacsclient continues
-  # to work without wrapping it.
-  socketDir = "%t/emacs";
-  socketPath = "${socketDir}/server";
-
-in
-{
-  options.services.baremacs = {
-    enable = mkEnableOption "the Emacs daemon";
-
-    package = mkOption {
-      type = types.package;
-      default = pkgs.emacs;
-      defaultText = literalExpression ''
-        pkgs.emacs
-      '';
-      description = "The Emacs package to use.";
-    };
-
-    socketActivation = {
-      enable = mkEnableOption "systemd socket activation for the Emacs service";
-    };
-
-    defaultEditor = {
-      enable = mkOption rec {
-        type = types.bool;
-        default = false;
-        example = !default;
-        description = "Whether to change the EDITOR environment variable or not";
-      };
-      editor = mkOption rec {
-        type = types.enum [ "emacs" "emacsclient" ];
-        default = null;
-        example = "emacsclient";
-        description = "Whether to change the EDITOR environment variable or not";
-      };
-    };
-
-    copyConfigFiles = {
-      enable = mkOption rec {
-        type = types.bool;
-        default = false;
-        example = !default;
-        description = "Whether to copy the config files to ~/.emacs.d or not";
-      };
-      files = mkOption rec {
-        type = types.attrsOf types.path;
-        default = { };
-        example = { "init.el" = ./init.el; };
-        description = "What files to copy under what name";
-      };
-    };
-  };
-
-  config = mkIf cfg.enable (mkMerge [
-    {
-      assertions = [
-        (lib.hm.assertions.assertPlatform "services.emacs" pkgs
-          lib.platforms.linux)
-        {
-          assertion = cfg.defaultEditor.enable -> cfg.defaultEditor.editor != null;
-          message = ''
-            services.baremacs.defaultEditor.enable requires services.baremacs.defaultEditor.editor to be set
-          '';
-        }
-      ];
-
-      systemd.user.services.emacs = {
-        Unit = {
-          Description = "Emacs text editor";
-          Documentation =
-            "info:emacs man:emacs(1) https://gnu.org/software/emacs/";
-
-          # Avoid killing the Emacs session, which may be full of
-          # unsaved buffers.
-          X-RestartIfChanged = false;
-        } // optionalAttrs (cfg.socketActivation.enable) {
-          # Emacs deletes its socket when shutting down, which systemd doesn't
-          # handle, resulting in a server without a socket.
-          # See https://github.com/nix-community/home-manager/issues/2018
-          RefuseManualStart = true;
-        };
-
-        Service = {
-          Type = "notify";
-
-          # We wrap ExecStart in a login shell so Emacs starts with the user's
-          # environment, most importantly $PATH and $NIX_PROFILES. It may be
-          # worth investigating a more targeted approach for user services to
-          # iport the user environment.
-          ExecStart = ''
-            ${pkgs.runtimeShell} -l -c "${emacsBinPath}/emacs --fg-daemon${
-            # In case the user sets 'server-directory' or 'server-name' in
-            # their Emacs config, we want to specify the socket path explicitly
-            # so launching 'emacs.service' manually doesn't break emacsclient
-            # when using socket activation.
-              optionalString cfg.socketActivation.enable
-              "=${escapeShellArg socketPath}"
-            }"'';
-
-          # Emacs will exit with status 15 after having received SIGTERM, which
-          # is the default "KillSignal" value systemd uses to stop services.
-          SuccessExitStatus = 15;
-
-          Restart = "on-failure";
-        } // optionalAttrs (cfg.socketActivation.enable) {
-          # Use read-only directory permissions to prevent emacs from
-          # deleting systemd's socket file before exiting.
-          ExecStartPost =
-            "${pkgs.coreutils}/bin/chmod --changes -w ${socketDir}";
-          ExecStopPost =
-            "${pkgs.coreutils}/bin/chmod --changes +w ${socketDir}";
-        };
-      } // optionalAttrs (!cfg.socketActivation.enable) {
-        Install = { WantedBy = [ "default.target" ]; };
-      };
-
-      home = {
-        sessionVariables = mkIf cfg.defaultEditor.enable {
-          EDITOR = let editor = cfg.defaultEditor.editor; in
-            getBin (pkgs.writeShellScript "editor" ''
-              exec ${
-                getBin cfg.package
-              }/bin/'' + editor + head (optional (editor == "emacsclient") '' "''${@:---create-frame}"''));
-        };
-
-        packages = [ cfg.package ];
-
-        file = mkIf cfg.copyConfigFiles.enable
-          (mapAttrs'
-            (n: v:
-              attrsets.nameValuePair (".emacs.d/" + n) { source = v; })
-            cfg.copyConfigFiles.files);
-      };
-    }
-
-    (mkIf cfg.socketActivation.enable {
-      systemd.user.sockets.emacs = {
-        Unit = {
-          Description = "Emacs text editor";
-          Documentation =
-            "info:emacs man:emacs(1) https://gnu.org/software/emacs/";
-        };
-
-        Socket = {
-          ListenStream = socketPath;
-          FileDescriptorName = "server";
-          SocketMode = "0600";
-          DirectoryMode = "0700";
-        };
-        Install = { WantedBy = [ "sockets.target" ]; };
-      };
-    })
-  ]);
-}