grap: fix build

pkgs/by-name/gr/grap/package.nix

@@ -8,26 +8,33 @@
   swig,
   bison,
   cmake,
-  python3,
+  python3Packages,
+  makeShellWrapper,
 }:
 
-stdenv.mkDerivation rec {
+python3Packages.buildPythonApplication rec {
   pname = "grap";
   version = "1.3.1";
+  pyproject = false;
 
   src = fetchFromGitHub {
     owner = "QuoSecGmbH";
     repo = "grap";
-    rev = "v${version}";
-    sha256 = "1fkdi7adfffxg1k4h6r9i69i3wi93s44c1j4cvr69blxsfh0mcnc";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-zLIKoNOdrmTyZkQGRogeKfIRk4kpG0hmeN0519SJbbo=";
   };
 
+  dependencies = with python3Packages; [
+    setuptools
+    capstone
+  ];
+
   nativeBuildInputs = [
     bison
     cmake
     flex
-    python3
     swig
+    makeShellWrapper
   ];
 
   buildInputs = [
@@ -38,16 +45,29 @@ stdenv.mkDerivation rec {
   strictDeps = true;
 
   cmakeFlags = [
-    "-DPYTHON_SITE_DIR=$out/${python3.sitePackages}"
+    "-DPYTHON_SITE_DIR=${placeholder "out"}/${python3Packages.python.sitePackages}"
     "../src"
   ];
 
   postPatch = ''
-    substituteInPlace src/tools/grap-match/CMakeLists.txt --replace "/usr/local/bin" "$out/bin"
-    substituteInPlace src/tools/grap/CMakeLists.txt --replace "/usr/local/bin" "$out/bin"
+    substituteInPlace src/tools/grap-match/CMakeLists.txt --replace-fail "/usr/local/bin" "$out/bin"
+
+    substituteInPlace src/tools/grap/CMakeLists.txt --replace-fail "/usr/local/bin" "$out/bin"
+
+    substituteInPlace src/bindings/python/CMakeLists.txt --replace-fail "distutils" "setuptools._distutils"
+
+    substituteInPlace src/tools/setup.py --replace-fail "distutils.core" "setuptools"
   '';
 
-  meta = with lib; {
+  postInstall = ''
+    cd $out/${python3Packages.python.sitePackages}
+    mv pygrap.so _pygrap.so
+    substituteInPlace pygrap.py \
+      --replace-fail "import imp" "import importlib" \
+      --replace-fail "imp." "importlib."
+  '';
+
+  meta = {
     description = "Define and match graph patterns within binaries";
     longDescription = ''
       grap takes patterns and binary files, uses a Casptone-based disassembler to obtain the control flow graphs from the binaries, then matches the patterns against them.
@@ -55,8 +75,9 @@ stdenv.mkDerivation rec {
       Patterns are user-defined graphs with instruction conditions ("opcode is xor and arg1 is eax") and repetition conditions (3 identical instructions, basic blocks...).
     '';
     homepage = "https://github.com/QuoSecGmbH/grap/";
-    license = licenses.mit;
-    maintainers = [ maintainers.s1341 ];
-    platforms = platforms.linux;
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ s1341 ];
+    platforms = lib.platforms.linux;
+    mainProgram = "grap";
   };
 }