801cc44765
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).
60 lines
1.5 KiB
Nix
60 lines
1.5 KiB
Nix
{ lib
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, stdenv
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, makeWrapper
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, retroarch
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, symlinkJoin
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, runCommand
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, cores ? [ ]
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, settings ? { }
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}:
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let
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settingsPath = runCommand "declarative-retroarch.cfg"
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{
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value = lib.concatStringsSep "\n" (lib.mapAttrsToList (n: v: "${n} = \"${v}\"") settings);
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passAsFile = [ "value" ];
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}
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''
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cp "$valuePath" "$out"
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'';
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# All cores should be located in the same path after symlinkJoin,
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# but let's be safe here
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coresPath = lib.lists.unique (map (c: c.libretroCore) cores);
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wrapperArgs = lib.strings.escapeShellArgs (
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(lib.lists.flatten (map (p: [ "--add-flags" "-L ${placeholder "out" + p}" ]) coresPath))
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++ [ "--add-flags" "--appendconfig=${settingsPath}" ]
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);
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in
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symlinkJoin {
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name = "retroarch-with-cores-${lib.getVersion retroarch}";
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paths = [ retroarch ] ++ cores;
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nativeBuildInputs = [ makeWrapper ];
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passthru = {
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inherit cores;
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unwrapped = retroarch;
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};
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postBuild = ''
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# remove core specific binaries
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find $out/bin -name 'retroarch-*' -type l -delete
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# wrap binary to load cores from the proper location(s)
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wrapProgram $out/bin/retroarch ${wrapperArgs}
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'';
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meta = with retroarch.meta; {
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inherit changelog description homepage license maintainers platforms;
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longDescription = ''
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RetroArch is the reference frontend for the libretro API.
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''
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+ lib.optionalString (cores != [ ]) ''
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The following cores are included: ${lib.concatStringsSep ", " (map (c: c.core) cores)}
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'';
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mainProgram = "retroarch";
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};
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}
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