OpenROAD/default.nix

# SPDX-License-Identifier: BSD-3-Clause
# Copyright (c) 2023-2025, The OpenROAD Authors

{
  flake,
  lib,
  clangStdenv,
  fetchFromGitHub,
  fetchzip,
  libsForQt5,
  abseil-cpp,
  boost189,
  eigen,
  cudd,
  tcl,
  python3,
  readline,
  tclreadline,
  spdlog,
  libffi,
  llvmPackages,
  lemon-graph,
  or-tools,
  glpk,
  zlib,
  clp,
  cbc,
  re2,
  swig,
  pkg-config,
  cmake,
  gnumake,
  flex,
  bison,
  clang-tools,
  gtest,
  # or-tools
  stdenv,
  overrideSDK,
  git,
  yaml-cpp,
}:
let
  or-tools' =
    (or-tools.override {
      ## Alligned alloc not available on the default SDK for x86_64-darwin (10.12!!)
      stdenv = if stdenv.isDarwin then (overrideSDK stdenv "11.0") else stdenv;
    }).overrideAttrs
      (
        finalAttrs: previousAttrs: {
          # Based on https://github.com/google/or-tools/commit/af44f98dbeb905656b5a9fc664b5fdcffcbe1f60
          # Stops CMake going haywire on reconfigures
          postPatch = previousAttrs.postPatch + ''
            sed -Ei.bak 's/(NOT\s+\w+_FOUND\s+AND\s+)+//' cmake/ortoolsConfig.cmake.in
            sed -Ei.bak 's/NOT absl_FOUND/NOT TARGET absl::base/' cmake/ortoolsConfig.cmake.in
          '';
        }
      );
  fetchedGtest = fetchzip {
    url = "https://github.com/google/googletest/archive/refs/tags/v1.14.0.zip";
    sha256 = "sha256-t0RchAHTJbuI5YW4uyBPykTvcjy90JW9AOPNjIhwh6U=";
  };
  lemon-graph' = lemon-graph.overrideAttrs (
    finalAttrs: previousAttrs: {
      src = fetchFromGitHub {
        owner = "The-OpenROAD-Project";
        repo = "lemon-graph";
        rev = "f871b10396270cfd09ffddc4b6ead07722e9c232";
        sha256 = "snqjc82vtgKC5uGu7V6Hhcf7YzRk0xHJDEOCN91iywI=";
      };
    }
  );
  self = clangStdenv.mkDerivation (finalAttrs: {
    name = "openroad";

    src = flake;

    cmakeFlags = [
      "-DTCL_LIBRARY=${tcl}/lib/libtcl${clangStdenv.hostPlatform.extensions.sharedLibrary}"
      "-DTCL_HEADER=${tcl}/include/tcl.h"
      "-DUSE_SYSTEM_BOOST:BOOL=ON"
      "-DVERBOSE=1"
      "-DFETCHCONTENT_SOURCE_DIR_GOOGLETEST=${fetchedGtest}"
    ];

    postPatch = ''
      patchShebangs .
    '';

    shellHook = ''
      alias ord-format-changed="${git}/bin/git diff --name-only | grep -E '\.(cpp|cc|c|h|hh)$' | xargs clang-format -i -style=file:.clang-format";
    '';

    qt5Libs = [
      libsForQt5.qt5.qtbase
      libsForQt5.qt5.qtcharts
      libsForQt5.qt5.qtsvg
      libsForQt5.qt5.qtdeclarative
    ];

    QT_PLUGIN_PATH =
      lib.makeSearchPathOutput "bin" "lib/qt-${libsForQt5.qt5.qtbase.version}/plugins"
        self.qt5Libs;

    buildInputs = self.qt5Libs ++ [
      abseil-cpp
      boost189
      cbc
      clp
      cudd
      eigen
      glpk
      gtest
      libffi
      llvmPackages.openmp
      python3
      re2
      readline
      spdlog
      tcl
      tclreadline
      yaml-cpp
      zlib

      # Local derivations
      or-tools'
      lemon-graph'
    ];

    nativeBuildInputs = [
      bison
      clang-tools
      cmake
      flex
      gnumake
      libsForQt5.wrapQtAppsHook
      pkg-config
      swig
    ];
  });
in
self