d391373c40
If emacs starts before the graphical session is initialised, clients won't be able to open new frames in the session. Start emacs with the graphical session to avoid this issue. Fixes https://github.com/NixOS/nixpkgs/issues/224512
119 lines
3.6 KiB
Nix
119 lines
3.6 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.emacs;
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editorScript = pkgs.writeScriptBin "emacseditor" ''
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#!${pkgs.runtimeShell}
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if [ -z "$1" ]; then
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exec ${cfg.package}/bin/emacsclient --create-frame --alternate-editor ${cfg.package}/bin/emacs
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else
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exec ${cfg.package}/bin/emacsclient --alternate-editor ${cfg.package}/bin/emacs "$@"
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fi
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'';
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desktopApplicationFile = pkgs.writeTextFile {
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name = "emacsclient.desktop";
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destination = "/share/applications/emacsclient.desktop";
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text = ''
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[Desktop Entry]
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Name=Emacsclient
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GenericName=Text Editor
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Comment=Edit text
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MimeType=text/english;text/plain;text/x-makefile;text/x-c++hdr;text/x-c++src;text/x-chdr;text/x-csrc;text/x-java;text/x-moc;text/x-pascal;text/x-tcl;text/x-tex;application/x-shellscript;text/x-c;text/x-c++;
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Exec=emacseditor %F
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Icon=emacs
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Type=Application
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Terminal=false
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Categories=Development;TextEditor;
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StartupWMClass=Emacs
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Keywords=Text;Editor;
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'';
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};
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in
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{
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options.services.emacs = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc ''
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Whether to enable a user service for the Emacs daemon. Use `emacsclient` to connect to the
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daemon. If `true`, {var}`services.emacs.install` is
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considered `true`, whatever its value.
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'';
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};
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install = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc ''
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Whether to install a user service for the Emacs daemon. Once
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the service is started, use emacsclient to connect to the
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daemon.
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The service must be manually started for each user with
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"systemctl --user start emacs" or globally through
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{var}`services.emacs.enable`.
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'';
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};
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package = mkOption {
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type = types.package;
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default = pkgs.emacs;
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defaultText = literalExpression "pkgs.emacs";
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description = lib.mdDoc ''
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emacs derivation to use.
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'';
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};
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defaultEditor = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc ''
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When enabled, configures emacsclient to be the default editor
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using the EDITOR environment variable.
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'';
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};
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startWithGraphical = mkOption {
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type = types.bool;
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default = config.services.xserver.enable;
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defaultText = literalExpression "config.services.xserver.enable";
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description = lib.mdDoc ''
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Start emacs with the graphical session instead of any session. Without this, emacs clients will not be able to create frames in the graphical session.
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'';
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};
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};
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config = mkIf (cfg.enable || cfg.install) {
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systemd.user.services.emacs = {
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description = "Emacs: the extensible, self-documenting text editor";
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serviceConfig = {
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Type = "forking";
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ExecStart = "${pkgs.bash}/bin/bash -c 'source ${config.system.build.setEnvironment}; exec ${cfg.package}/bin/emacs --daemon'";
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ExecStop = "${cfg.package}/bin/emacsclient --eval (kill-emacs)";
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Restart = "always";
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};
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unitConfig = optionalAttrs cfg.startWithGraphical {
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After = "graphical-session.target";
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};
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} // optionalAttrs cfg.enable {
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wantedBy = if cfg.startWithGraphical then [ "graphical-session.target" ] else [ "default.target" ];
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};
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environment.systemPackages = [ cfg.package editorScript desktopApplicationFile ];
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environment.variables.EDITOR = mkIf cfg.defaultEditor (mkOverride 900 "emacseditor");
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};
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meta.doc = ./emacs.md;
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}
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