1 files changed, 47 insertions, 0 deletions
diff --git a/pkgs/games/cataclysm-dda/wrapper.nix b/pkgs/games/cataclysm-dda/wrapper.nix
new file mode 100644
index 00000000000..a73c320f9c6
--- /dev/null
+++ b/pkgs/games/cataclysm-dda/wrapper.nix
@@ -0,0 +1,47 @@
+{ lib, symlinkJoin, makeWrapper }:
+
+unwrapped:
+
+pkgsSpec:
+
+let
+  mods = if lib.isFunction pkgsSpec
+         then pkgsSpec unwrapped.pkgs
+         else pkgsSpec;
+in
+
+if builtins.length mods == 0
+then unwrapped
+else symlinkJoin {
+  name = unwrapped.name + "-with-mods";
+
+  paths = [ unwrapped ] ++ mods;
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  postBuild = ''
+    if [ -x $out/bin/cataclysm ]; then
+        wrapProgram $out/bin/cataclysm \
+            --add-flags "--datadir $out/share/cataclysm-dda/"
+    fi
+    if [ -x $out/bin/cataclysm-tiles ]; then
+        wrapProgram $out/bin/cataclysm-tiles \
+            --add-flags "--datadir $out/share/cataclysm-dda/"
+    fi
+
+    # Launch the wrapped program
+    replaceProgram() {
+        cp "$1" "''${1}.bk"
+        unlink "$1"
+        mv "''${1}.bk" "$1"
+        sed -i "$1" -e "s,/nix/store/.\+\(/bin/cataclysm-tiles\),$out\1,"
+    }
+    for script in "$out/share/applications/cataclysm-dda.desktop" \
+                  "$out/Applications/Cataclysm.app/Contents/MacOS/Cataclysm.sh"
+    do
+        if [ -e "$script" ]; then
+            replaceProgram "$script"
+        fi
+    done
+  '';
+}