Provide argvWrapper

bsc/garlic/nbody/argv.nix

@@ -0,0 +1,29 @@
+{
+  stdenv
+, particles
+, timestamps
+, program
+, config
+}:
+
+stdenv.mkDerivation {
+  inherit program;
+
+  passthru = {
+    inherit config;
+  };
+
+  name = "${program.name}-argv";
+  preferLocalBuild = true;
+  phases = [ "installPhase" ];
+  dontPatchShebangs = true;
+  installPhase = ''
+    mkdir -p $out/bin
+    cat > $out/bin/run <<EOF
+    #!/bin/sh
+    exec ${program}/bin/run -p ${toString config.particles} -t ${toString config.timesteps}
+    EOF
+
+    chmod +x $out/bin/run
+  '';
+}

bsc/garlic/nbody/default.nix

@@ -4,16 +4,14 @@
 , cflags ? null
 , gitBranch
 , blocksize ? 2048
-, particles ? 16384
-, timesteps ? 10
 }:
 
-stdenv.mkDerivation {
+stdenv.mkDerivation rec {
   name = "nbody";
 
   src = builtins.fetchGit {
     url = "ssh://git@bscpm02.bsc.es/rarias/nbody.git";
-    ref = gitBranch;
+    ref = "${gitBranch}";
   };
 
   buildInputs = [
@@ -33,15 +31,8 @@ stdenv.mkDerivation {
 
   installPhase = ''
     mkdir -p $out/bin
-    cp nbody $out/bin/
-
-    cat > $out/bin/run <<EOF
-    #!/bin/sh
-
-    exec $out/bin/nbody -p ${toString particles} -t ${toString timesteps}
-    EOF
-
-    chmod +x $out/bin/run
+    cp nbody* $out/bin/${name}
+    ln -s $out/bin/${name} $out/bin/run
   '';
 
 }