add cli options

src/main.cpp

@@ -1,5 +1,34 @@
+#include <filesystem>
 #include <iostream>
+#include <string>
+#include <unistd.h>
+#include <cxxopts.hpp>
+#include <vector>
 
-int main() {
-  std::cout << "hello" << std::endl;
+int main(int argc, char** argv) {
+  cxxopts::Options options("gwatch", "A command-line variable watcher");
+  options.add_options()
+    ("var", "Symbol to watch", cxxopts::value<std::string>())
+    ("exec", "Executable to run", cxxopts::value<std::filesystem::path>())
+    ("h,help", "Print usage");
+    // TODO: Figure out a way to receive arguments for the executable being ran
+    // ("--", "Arguents to provide to the executable", cxxopts::value<std::vector<std::string>>()->default_value({}));
+
+  auto result = options.parse(argc, argv);
+
+  if (result.count("help") || argc < 2) {
+    std::cout << options.help();
+    exit(0);
+  }
+
+  std::cout << result["var"].as<std::string>() << std::endl;
+  std::cout << result["exec"].as<std::filesystem::path>() << std::endl;
+
+  // auto pArgs = result["--"].as<std::vector<std::string>>();
+
+  // for (auto x : pArgs) {
+  //   std::cout << x << std::endl;
+  // }
+
+  return 0;
 }