sauerbraten: use stdenv

This replaces use of builderDefsPackage (#4210).

pkgs/games/sauerbraten/default.nix

···
-x@{builderDefsPackage
-  , fetchsvn, mesa, SDL, SDL_image, SDL_mixer
-  , libpng, zlib, libjpeg, imagemagick, libX11
-  , ...}:
-builderDefsPackage
-(a :  
-let 
-  helperArgNames = ["stdenv" "fetchurl" "builderDefsPackage"] ++ 
-    ["fetchsvn"];
+{ stdenv, fetchsvn, mesa, SDL, SDL_image, SDL_mixer
+, libpng, zlib, libjpeg, imagemagick, libX11
+}:
 
-  buildInputs = map (n: builtins.getAttr n x)
-    (builtins.attrNames (builtins.removeAttrs x helperArgNames));
-  sourceInfo = rec {
-    baseName="sauerbraten";
-    version="5000";
-    name="${baseName}-r${version}";
-    url="https://svn.code.sf.net/p/sauerbraten/code";
-    hash="17libj7dslprlwppdk3vyxdcigbsa4czln8gdyz9j264m11z1cbh";
-  };
-in
-rec {
-  srcDrv = a.fetchsvn {
-    url = sourceInfo.url;
-    sha256 = sourceInfo.hash;
-    rev = sourceInfo.version;
+stdenv.mkDerivation rec {
+  name = "sauerbraten-r${version}";
+  version = "5000";
+
+  src = fetchsvn {
+    url = "https://svn.code.sf.net/p/sauerbraten/code";
+    sha256 = "17libj7dslprlwppdk3vyxdcigbsa4czln8gdyz9j264m11z1cbh";
+    rev = version;
   };
 
-  src = srcDrv + "/";
-
-  inherit (sourceInfo) name version;
-  inherit buildInputs;
-
-  phaseNames = ["setVars" "doMakeInstall" "doCreateScripts"];
+  buildInputs = [
+    mesa SDL SDL_image SDL_mixer libpng zlib libjpeg imagemagick
+    libX11
+  ];
 
-  setVars = a.noDepEntry ''
+  preBuild = ''
     export NIX_LDFLAGS="$NIX_LDFLAGS -lX11"
+    pushd src
   '';
 
-  doUnpack = a.fullDepEntry ''
-    mkdir -p $out/share/sauerbraten/build-dir
-    ln -s  $out/share/sauerbraten/build-dir
-    cd $out/share/sauerbraten/build-dir
-    (cd ${src}; find . -type d) | tail -n +2 | xargs -L 1 mkdir
-    (cd ${src}; find . -type f) | while read; do ln -s ${src}/"$REPLY" "$(dirname "$REPLY")"; done
-    cd src
-    ls
-    make clean
-    sed -e '/[.]h[.]gch/,/-o/s@-o@-x c++-header -o@' -i Makefile
-  '' ["minInit" "addInputs" "defEnsureDir"];
-
-  doCreateScripts = a.fullDepEntry ''
-    cd ..
-    mkdir -p $out/bin
-    echo '#! /bin/sh' >> $out/bin/sauerbraten_server
-    echo 'cd "'"$out"'/share/sauerbraten/build-dir"' >> $out/bin/sauerbraten_server
-    echo './bin_unix/native_server "$@"' >> $out/bin/sauerbraten_server
-    echo '#! /bin/sh' >> $out/bin/sauerbraten_client
-    echo 'cd "'"$out"'/share/sauerbraten/build-dir"' >> $out/bin/sauerbraten_client
-    echo './bin_unix/native_client "$@"' >> $out/bin/sauerbraten_client
+  installPhase = ''
+    popd
+    mkdir -p $out/bin $out/share/sauerbraten $out/share/doc/sauerbraten
+    cp -rv "docs/"* $out/share/doc/sauerbraten/
+    cp -v src/sauer_client src/sauer_server $out/share/sauerbraten/
+    cp -rv packages $out/share/sauerbraten/
+    cp -rv data $out/share/sauerbraten/
+    cat > $out/bin/sauerbraten_server <<EOF
+    #!${stdenv.shell}
+    cd $out/share/sauerbraten
+    ./sauer_server "\$@"
+    EOF
+    cat > $out/bin/sauerbraten_client <<EOF
+    #!${stdenv.shell}
+    cd $out/share/sauerbraten
+    ./sauer_client "\$@"
+    EOF
     chmod a+x $out/bin/sauerbraten_*
-  '' ["minInit" "defEnsureDir"];
-      
-  meta = {
+  '';
+
+  meta = with stdenv.lib; {
     description = "";
-    maintainers = with a.lib.maintainers;
-    [
-      raskin
-    ];
+    maintainers = [ maintainers.raskin ];
     hydraPlatforms =
       # raskin: tested amd64-linux;
       # not setting platforms because it is 0.5+ GiB of game data
       [];
     license = "freeware"; # as an aggregate - data files have different licenses
                           # code is under zlib license
+    platforms = platforms.linux;
   };
-}) x
-
+}