Formula/c/cgal.rb

   1 class Cgal < Formula
   2   desc "Computational Geometry Algorithms Library"
   3   homepage "https://www.cgal.org/"
   4   url "https://github.com/CGAL/cgal/releases/download/v6.0.1/CGAL-6.0.1.tar.xz"
   5   sha256 "0acdfbf317c556630dd526f3253780f29b6ec9713ee92903e81b5c93c0f59b7f"
   6   license "GPL-3.0-or-later"
   7
   8   bottle do
   9     sha256 cellar: :any_skip_relocation, all: "f423b392b99b69eff16bdad8309eebfa1e01ef6e569c6c2b50fd20e2fafeab7d"
  10   end
  11
  12   depends_on "cmake" => [:build, :test]
  13   depends_on "qt" => :test
  14   depends_on "boost"
  15   depends_on "eigen"
  16   depends_on "gmp"
  17   depends_on "mpfr"
  18
  19   on_linux do
  20     depends_on "openssl@3"
  21   end
  22
  23   def install
  24     system "cmake", "-S", ".", "-B", "build", *std_cmake_args
  25     system "cmake", "--build", "build"
  26     system "cmake", "--install", "build"
  27
  28     # Ensure that the various `Find*` modules look in HOMEBREW_PREFIX.
  29     # This also helps guarantee uniform bottles.
  30     inreplace_files = %w[
  31       CGAL_Common.cmake
  32       FindESBTL.cmake
  33       FindGLPK.cmake
  34       FindIPE.cmake
  35       FindLASLIB.cmake
  36       FindMKL.cmake
  37       FindOSQP.cmake
  38       FindSuiteSparse.cmake
  39     ]
  40     inreplace inreplace_files.map { |file| lib/"cmake/CGAL"/file }, "/usr/local", HOMEBREW_PREFIX
  41
  42     # These cause different bottles to be built between macOS and Linux for some reason.
  43     %w[README.md readme.md].each { |file| (buildpath/file).unlink if (buildpath/file).exist? }
  44   end
  45
  46   test do
  47     # https://doc.cgal.org/latest/Triangulation_2/Triangulation_2_2draw_triangulation_2_8cpp-example.html and  https://doc.cgal.org/latest/Algebraic_foundations/Algebraic_foundations_2interoperable_8cpp-example.html
  48     (testpath/"surprise.cpp").write <<~CPP
  49       #include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
  50       #include <CGAL/Triangulation_2.h>
  51       #include <CGAL/draw_triangulation_2.h>
  52       #include <CGAL/basic.h>
  53       #include <CGAL/Coercion_traits.h>
  54       #include <CGAL/IO/io.h>
  55       #include <fstream>
  56       typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
  57       typedef CGAL::Triangulation_2<K>                            Triangulation;
  58       typedef Triangulation::Point                                Point;
  59
  60       template <typename A, typename B>
  61       typename CGAL::Coercion_traits<A,B>::Type
  62       binary_func(const A& a , const B& b){
  63           typedef CGAL::Coercion_traits<A,B> CT;
  64           typename CT::Cast cast;
  65           return cast(a)*cast(b);
  66       }
  67
  68       int main(int argc, char**) {
  69         std::cout<< binary_func(double(3), int(5)) << std::endl;
  70         std::cout<< binary_func(int(3), double(5)) << std::endl;
  71         std::ifstream in("data/triangulation_prog1.cin");
  72         std::istream_iterator<Point> begin(in);
  73         std::istream_iterator<Point> end;
  74         Triangulation t;
  75         t.insert(begin, end);
  76         if(argc == 3) // do not test Qt6 at runtime
  77           CGAL::draw(t);
  78         return EXIT_SUCCESS;
  79        }
  80     CPP
  81     (testpath/"CMakeLists.txt").write <<~CMAKE
  82       cmake_minimum_required(VERSION 3.1...3.15)
  83       find_package(CGAL COMPONENTS Qt6)
  84       add_definitions(-DCGAL_USE_BASIC_VIEWER -DQT_NO_KEYWORDS)
  85       include_directories(surprise BEFORE SYSTEM #{Formula["qt"].opt_include})
  86       add_executable(surprise surprise.cpp)
  87       target_include_directories(surprise BEFORE PUBLIC #{Formula["qt"].opt_include})
  88       target_link_libraries(surprise PUBLIC CGAL::CGAL_Qt6)
  89     CMAKE
  90     system "cmake", "-L", "-DQt6_DIR=#{Formula["qt"].opt_lib}/cmake/Qt6",
  91            "-DCMAKE_PREFIX_PATH=#{Formula["qt"].opt_lib}",
  92            "-DCMAKE_BUILD_RPATH=#{HOMEBREW_PREFIX}/lib", "-DCMAKE_PREFIX_PATH=#{prefix}", "."
  93     system "cmake", "--build", ".", "-v"
  94     assert_equal "15\n15", shell_output("./surprise").chomp
  95   end
  96 end