add ghidra binsync extension

README.md

@@ -321,7 +321,20 @@ the service user and group
 
 like upstream, but patches an issue with loading python packages in the ghidra debug feature
 
-this will probably get removed once upstream fixes the issue
+additionally, provides a way to specify extensions
+
+#### `programs.ghidra.extensions`
+
+Ghidra extensions to be included in the installation.
+
+example:
+```
+[ (ps: with ps; [ binsync ]) ]
+```
+
+#### `programs.ghidra.binsync.enable`
+
+enable binsync integration
 
 ### [`environment.machineInfo`](./modules/machine-info/default.nix)
 
@@ -474,6 +487,13 @@ server operation with a headless jdk (in particular, the ghidra-server nixos mod
 
 this is equivalent to the `lib` output of the split `ghidra` package
 
+### [`ghidra-extensions`](./pkgs/reverse-engineering/ghidra/extensions)
+
+like upstream, but contains additional extensions:
+
+- `binsync-ghidra`: the binsync `ghidra_scripts` installation packaged as an extension, so it can be
+  installed at the system level
+
 ### [`ocamlPackages.ppx_unicode`](./pkgs/ocaml/ppx_unicode)
 
 opinionated ppx for string literals: <https://git.lain.faith/haskal/ppx_unicode>

modules/ghidra-client/default.nix

@@ -7,9 +7,11 @@
 
 let
   cfg = config.programs.ghidra;
-  package = cfg.package;
-  isSplit = lib.elem "lib" package.outputs;
-  libOutput = if isSplit then package.lib else package;
+  isSplit = lib.elem "lib" cfg.package.outputs;
+  libOutput = if isSplit then cfg.package.lib else cfg.package;
+
+  packageWithExts = cfg.package.withExtensions
+    (p: lib.concatMap (pl: pl p) cfg.extensions);
 in
 {
   disabledModules = [ "programs/ghidra.nix" ];
@@ -26,11 +28,30 @@ in
     };
 
     package = lib.mkPackageOption pkgs "ghidra" { example = "ghidra_headless"; };
+
+    extensions = lib.mkOption {
+      type = with lib.types; listOf (functionTo (listOf package));
+      default = [];
+      description = ''
+        Ghidra extensions to be included in the installation.
+      '';
+      example = lib.literalExpression "[ (ps: with ps; [ my_extension ]) ]";
+    };
+
+    binsync = {
+      enable = lib.mkEnableOption "Ghidra binsync integration";
+    };
   };
 
   config = lib.mkIf cfg.enable {
+    programs.ghidra.extensions = lib.mkIf (cfg.binsync.enable) [
+      (ps: [ ps.binsync ])
+    ];
+
     environment = {
-      systemPackages = [ package ];
+      systemPackages = [
+        packageWithExts
+      ];
 
       etc = lib.mkIf cfg.gdb {
         "gdb/gdbinit.d/ghidra-modules.gdb".text = with pkgs.python3.pkgs; ''

pkgs/reverse-engineering/ghidra/extensions.nix

@@ -34,4 +34,6 @@ lib.makeScope newScope (self: {
   sleighdevtools = self.callPackage ./extensions/sleighdevtools { inherit ghidra; };
 
   wasm = self.callPackage ./extensions/wasm { inherit ghidra; };
+
+  binsync = self.callPackage ./extensions/binsync {};
 })

pkgs/reverse-engineering/ghidra/extensions/binsync/default.nix

@@ -0,0 +1,40 @@
+{
+  lib,
+  fetchFromGitHub,
+  buildGhidraScripts,
+  runCommand,
+  rsync,
+
+  python311,
+}: let
+  python = python311;
+  libbs_path = "${python.pkgs.libbs}/${python.sitePackages}";
+  binsync_path = "${python.pkgs.binsync}/${python.sitePackages}";
+
+  binsync_env = python.withPackages (ps: with ps; ([
+    binsync
+  ] ++ binsync.optional-dependencies.ghidra));
+in buildGhidraScripts {
+  pname = "binsync-ghidra";
+  inherit (python.pkgs.binsync) version;
+
+  src = runCommand "binsync-ghidra-scripts" {
+    nativeBuildInputs = [ rsync ];
+    strictDeps = true;
+  } ''
+    mkdir -p $out
+
+    rsync -r \
+      --exclude='__pycache__' \
+      --exclude='/__init__.py' \
+      ${libbs_path}/libbs/decompiler_stubs/ghidra_libbs/. $out/.
+
+    cp ${binsync_path}/binsync/binsync_plugin.py $out
+  '';
+
+  postPatch = ''
+    substituteInPlace binsync_plugin.py \
+      --replace-fail 'plugin_command = "binsync -s ghidra"' \
+        'plugin_command = "${lib.getExe' binsync_env "binsync"} -s ghidra"'
+  '';
+}