Added optional espeak dependency.

To configure espeak for TTS, pass withSpeech = true to the package call.

Author: jeeger

README.md

@@ -60,7 +60,7 @@ On windows via [Scoop](https://scoop.sh/):
 scoop install mob
 ``` 
 
-On [Nix](http://nixos.org) through the [mob.nix](./mob.nix) expression like this `mob = callPackage ./mob.nix {};`.
+On [Nix](http://nixos.org) through the [mob.nix](./mob.nix) expression like this `mob = callPackage ./mob.nix {};`. To install and configure espeak-ng for text-to-spech support, pass `withSpeech = true;`.
 
 ## How to use
 

mob.nix

@@ -1,4 +1,4 @@
-{buildGoPackage, fetchFromGitHub, lib, ...}:
+{withSpeech ? false, makeWrapper, espeak-ng, buildGoPackage, fetchFromGitHub, lib, ...}:
 buildGoPackage rec {
     pname = "mob.sh";
     version = "1.3.0";
@@ -11,6 +11,12 @@ buildGoPackage rec {
       sha256 = "04x6cl2r4ja41cmy82p5apyavmdvak6jsclzf2l7islf0pmsnddv";
     };
 
+    buildInputs =
+      if withSpeech then
+        [ espeak-ng makeWrapper ]
+      else
+        [];
+
     goPackagePath = "github.com/${owner}/${repo}/";
 
     subPackages = [ "." ];
@@ -20,4 +26,9 @@ buildGoPackage rec {
       homepage = "https://mob.sh";
       license = lib.licenses.mit;
     };
+
+    preFixup = if withSpeech then ''
+wrapProgram "$out/bin/mob" --set MOB_VOICE_COMMAND "${espeak-ng.out}/bin/espeak"
+'' else "";
+
 }