Initial release.

options/espeak.nix

@@ -0,0 +1,116 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config;
+  speak = cfg.speak;
+in rec {
+  options.speak = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = ''
+        Enable NixOS speak module.
+      '';
+    };
+    installPackages = mkOption {
+      type = types.bool;
+      default = true;
+      description = ''
+        Add spech related packages to environment.
+      '';
+    };
+    user = mkOption {
+      type = types.str;
+      default = "root";
+      description = ''
+        User which runs services like espeakup and speech-dispatcher.
+        User needs to be in audio group.
+      '';
+    };
+    config = {
+      speakup = mkOption {
+        type = types.attrs;
+        default = {};
+        example = ''
+          {
+            synth = "soft";
+            punc_level = "0";
+            reading_punc = "0";
+            soft = {
+              rate = "6";
+            };
+          }
+        '';
+      };
+    };
+  };
+
+  config = mkIf speak.enable rec {
+    boot.kernelModules = [ "speakup_soft" ];
+    nixpkgs.config.packageOverrides = {
+      espeakup = pkgs.callPackage ../pkgs/espeakup.nix {};
+    };
+
+    # needed for orca
+    services.gnome3.at-spi2-core.enable = mkDefault (cfg.services.xserver.enable);
+
+    # allow users in the audio group to use and configure speakup_soft
+    services.udev.extraRules = ''
+      KERNEL=="synth", SUBSYSTEM=="misc", GROUP="audio", MODE="0660"
+      KERNEL=="softsynth", SUBSYSTEM=="misc", GROUP="audio", MODE="0660"
+      KERNEL=="softsynthu", SUBSYSTEM=="misc", GROUP="audio", MODE="0660"
+    '';
+
+    # See https://aur.archlinux.org/cgit/aur.git/tree/espeakup.service?h=espeakup-git
+    systemd.services = {
+      speakup-configure = let
+        # This whole thing still feels a little bit awkward
+        pathList = collect (v: isList v) (mapAttrsRecursive (p: v: p) speak.config.speakup);
+        mkCommand = p: v: "echo ${v} > /sys/accessibility/speakup/${p}";
+        commandList = (map (l: (mkCommand (concatStringsSep "/" l) (attrByPath l "0" speak.config.speakup))) pathList);
+      in {
+        enable = true;
+        description = "configure speakup.";
+        wantedBy = [ "default.target" ];
+        wants = [ "systemd-udev-settle.service" ];
+        after = [ "systemd-udev-settle.service" "sound.target" ];
+        script = (concatStringsSep "\n" commandList);
+        serviceConfig.Type = "oneshot";
+      };
+      espeakup = {
+        enable = (speak.user == "root");
+        description = "Software speech output system wide settings.";
+        wantedBy = [ "default.target" ];
+        wants = [ "systemd-udev-settle.service" ];
+        after = [ "systemd-udev-settle.service" "sound.target" ];
+
+        serviceConfig = {
+          Type = "forking";
+          ExecStart = "${pkgs.espeakup}/bin/espeakup";
+          ExecStop = "${pkgs.utillinux.bin}/bin/kill -HUP $MAINPID";
+          Restart= "always";
+        };
+      };
+    };
+    systemd.user.services.espeakup = {
+      enable = (speak.user != "root");
+      description = "Software speech output system wide settings.";
+      wantedBy = [ "default.target" ];
+      wants = [ "systemd-udev-settle.service" ];
+      after = [ "systemd-udev-settle.service" "sound.target" ];
+
+      serviceConfig = {
+        Type = "forking";
+        ExecStart = "${pkgs.espeakup}/bin/espeakup";
+        ExecStop = "${pkgs.utillinux.bin}/bin/kill -HUP $MAINPID";
+        Restart= "always";
+      };
+    };
+    environment.systemPackages = optionals speak.installPackages (with pkgs; [
+      (lowPrio espeak-classic) espeak-ng
+      espeakup
+    ]);
+  };
+}