Merge pull request #4078 from edwtjo/libretro-cores-addendum

XBMC RetroArch integration and some cores

pkgs/misc/emulators/retroarch/cores.nix

@@ -24,7 +24,10 @@ let
         --add-flags "-L $COREDIR/${d2u core}_libretro.so $@"
     '';
 
-    passthru.libretroCore = "/lib/retroarch/cores";
+    passthru = {
+      core = core;
+      libretroCore = "/lib/retroarch/cores";
+    };
 
     meta = with stdenv.lib; {
       inherit description;

pkgs/misc/emulators/retroarch/xbmc-advanced-launchers.nix

@@ -0,0 +1,39 @@
+{ stdenv, pkgs, cores }:
+
+assert cores != [];
+
+with pkgs.lib;
+
+let
+
+  script = exec: ''
+    #!${stdenv.shell}
+    nohup sh -c "sleep 1 && pkill -SIGSTOP xbmc" &
+    nohup sh -c "${exec} '$@' -f;pkill -SIGCONT xbmc"
+  '';
+  scriptSh = exec: pkgs.writeScript ("xbmc-"+exec.name) (script exec.path);
+  execs = map (core: rec { name = core.core; path = core+"/bin/retroarch-"+name;}) cores;
+
+in
+
+stdenv.mkDerivation rec {
+  name = "xbmc-retroarch-advanced-launchers-${version}";
+  version = "0.2";
+
+  dontBuild = true;
+
+  buildCommand = ''
+    mkdir -p $out/bin
+    ${stdenv.lib.concatMapStrings (exec: "ln -s ${scriptSh exec} $out/bin/xbmc-${exec.name};") execs}
+  '';
+
+  meta = {
+    description = "XBMC retroarch advanced launchers";
+    longDescription = ''
+      These retroarch launchers are intended to be used with
+      anglescry advanced launcher for XBMC since device input is
+      caught by both XBMC and the retroarch process.
+    '';
+    license = "GPL-3";
+  };
+}