Commit 801cc447 authored by Bjørn Forsman's avatar Bjørn Forsman
Browse files

retroarch: add support for declarative settings 

Add a new optional 'settings' attrset to the wrapper derivation, which
gets serialized to a file and passed to RetroArch as --appendconfig= at
runtime. This allows overriding settings from
~/.config/retroarch/retroarch.cfg (which initially gets created as a
dump of all internal retroarch settings -- stateful and messy).
parent 7120535c

pkgs/applications/emulators/retroarch/wrapper.nix

+15 −3
Original line number Diff line number Diff line
@@ -3,16 +3,28 @@ 
, makeWrapper

, retroarch

, symlinkJoin

, runCommand

, cores ? [ ]

, settings ? { }

}:



let

  settingsPath = runCommand "declarative-retroarch.cfg"

    {

      value = lib.concatStringsSep "\n" (lib.mapAttrsToList (n: v: "${n} = \"${v}\"") settings);

      passAsFile = [ "value" ];

    }

    ''

      cp "$valuePath" "$out"

    '';



  # All cores should be located in the same path after symlinkJoin,

  # but let's be safe here

  coresPath = lib.lists.unique (map (c: c.libretroCore) cores);

  wrapperArgs = lib.strings.escapeShellArgs

    (lib.lists.flatten

      (map (p: [ "--add-flags" "-L ${placeholder "out" + p}" ]) coresPath));

  wrapperArgs = lib.strings.escapeShellArgs (

    (lib.lists.flatten (map (p: [ "--add-flags" "-L ${placeholder "out" + p}" ]) coresPath))

    ++ [ "--add-flags" "--appendconfig=${settingsPath}" ]

  );

in

symlinkJoin {

  name = "retroarch-with-cores-${lib.getVersion retroarch}";

pkgs/top-level/all-packages.nix

+2 −2
Original line number Diff line number Diff line
@@ -2642,9 +2642,9 @@ with pkgs; 
      (builtins.attrValues libretro);

  };













  wrapRetroArch = { retroarch }:













  wrapRetroArch = { retroarch, settings ? {} }:















    callPackage ../applications/emulators/retroarch/wrapper.nix













      { inherit retroarch; };













      { inherit retroarch settings; };





























  retroarch = wrapRetroArch {















    retroarch = retroarchBare.override {