1 files changed, 19 insertions, 22 deletions

diff --git a/custom/trivmix-service.nix b/custom/trivmix-service.nix
index 3c3cded7..e9120f88 100644
--- a/custom/trivmix-service.nix
+++ b/custom/trivmix-service.nix
@@ -3,43 +3,40 @@
 , connectOut ? null
 , connectIn ? null
 , group ? null
+, initial ? null
 , trivmix
 , stdenv
 , makeWrapper
 , jack2Full
 , coreutils
+, writeScript
 }:
 
 let
-  genRun = if ! isNull run then run else (
-    "${derivRun}/bin/run.sh"
-  );
-  derivRun = stdenv.mkDerivation {
-    name = "trivmix-run";
-    src = builtins.toFile "run.sh" ''
-      #!/bin/sh
+  connect = (! isNull connectOut) || (! isNull connectIn);
+  connectScript = writeScript "connect" ''
+    #!${stdenv.shell}
 
-      ${if ! isNull connectIn then "jack_connect ${connectIn} $1" else ""}
-      ${if ! isNull connectOut then "jack_connect $2 ${connectOut}" else ""}
-    '';
-    unpackPhase = "cat";
-    buildInputs = [ makeWrapper ];
-    installPhase = ''
-      mkdir -p $out/bin
-      cp $src $out/bin/run.sh
-      chmod 755 $out/bin/run.sh
-      wrapProgram $out/bin/run.sh \
-        --prefix PATH : ${jack2Full}/bin
-    '';
-  };
-in rec {
+    PATH=${jack2Full}/bin:$PATH
+
+    ${optionalString (! isNull connectIn) "jack_connect ${connectIn} $1"}
+    ${optionalString (! isNull connectOut) "jack_connect $2 ${connectOut}"}
+  '';
+  inherit (stdenv.lib) optionalString;
+in {
   out = {
     wantedBy = [ "sound.target" ];
     requires = [ "jack.service" ];
     before = [ "mpd.service" ];
     serviceConfig = {
       Type = "simple";
-      ExecStart = ''${trivmix}/bin/trivmix --client ${name} --run ${genRun} /dev/shm/mix/${name}/level${if ! isNull group then " /dev/shm/mix/${group}/level" else ""}'';
+      ExecStart = ''${trivmix}/bin/trivmix --client ${name} \
+        ${optionalString connect "--run ${connectScript}"} \
+        ${optionalString (! isNull run) "--run ${run}"} \
+        ${optionalString (! isNull initial) "--level ${initial}"} \
+        /dev/shm/mix/${name}/level \
+        ${optionalString (! isNull group) "/dev/shm/mix/${group}/level"}
+      '';
       User = "jack";
       Group = "audio";
       Nice = "-10";