Formula/c/cxxopts.rb

   1 class Cxxopts < Formula
   2   desc "Lightweight C++ command-line option parser"
   3   homepage "https://github.com/jarro2783/cxxopts"
   4   url "https://github.com/jarro2783/cxxopts/archive/refs/tags/v3.2.1.tar.gz"
   5   sha256 "841f49f2e045b9c6365997c2a8fbf76e6f215042dda4511a5bb04bc5ebc7f88a"
   6   license "MIT"
   7   head "https://github.com/jarro2783/cxxopts.git", branch: "master"
   8
   9   bottle do
  10     sha256 cellar: :any_skip_relocation, all: "883a901ef150f303dfba9430fc0fd7f29a9f132406b35ebd9dcf481f23029957"
  11   end
  12
  13   depends_on "cmake" => :build
  14
  15   def install
  16     args = %w[
  17       -DCXXOPTS_BUILD_EXAMPLES=OFF
  18       -DCXXOPTS_BUILD_TESTS=OFF
  19     ]
  20
  21     system "cmake", "-S", ".", "-B", "build", *args, *std_cmake_args
  22     system "cmake", "--build", "build"
  23     system "cmake", "--install", "build"
  24   end
  25
  26   test do
  27     (testpath/"test.cc").write <<~CPP
  28       #include <iostream>
  29       #include <cstdlib>
  30       #include <cxxopts.hpp>
  31
  32       int main(int argc, char *argv[]) {
  33           cxxopts::Options options(argv[0]);
  34
  35           std::string input;
  36           options.add_options()
  37               ("e,echo", "String to be echoed", cxxopts::value(input))
  38               ("h,help", "Print this help", cxxopts::value<bool>()->default_value("false"));
  39
  40           auto result = options.parse(argc, argv);
  41
  42           if (result.count("help")) {
  43               std::cout << options.help() << std::endl;
  44               std::exit(0);
  45           }
  46
  47           std::cout << input << std::endl;
  48
  49           return 0;
  50       }
  51     CPP
  52
  53     system ENV.cxx, "-std=c++11", "test.cc", "-I#{include}", "-o", "test"
  54     assert_equal "echo string", shell_output("./test -e 'echo string'").strip
  55     assert_equal "echo string", shell_output("./test --echo='echo string'").strip
  56   end
  57 end