add error class

src/args.cpp

@@ -3,6 +3,7 @@
 #include "gen.h"
 #include "help.h"
 
+#include <exception>
 #include <filesystem>
 #include <stdexcept>
 #include <string>
@@ -15,25 +16,29 @@ const char *handle_args(int argc, char **argv) {
         args.push_back(argv[i]);
 
     if (args.size() < 2)
-        throw std::runtime_error("Please provide command line arguments!");
+        return "Please provide command line arguments!";
     std::string main_arg = args[1];
     if (main_arg == "gen") {
-        cmkr::gen::generate_cmake(std::filesystem::current_path().string().c_str());
-        return "Generation successful!";
+        auto ret = cmkr::gen::generate_cmake(std::filesystem::current_path().string().c_str());
+        if (ret)
+            return "CMake generation error!";
+        return "CMake generation successful!";
     } else if (main_arg == "help") {
         return cmkr::help::message();
     } else if (main_arg == "version") {
         return cmkr::help::version();
     } else if (main_arg == "init") {
         if (args.size() < 3)
-            throw std::runtime_error("Please provide a project type!");
-        cmkr::gen::generate_project(args[2].c_str());
+            return "Please provide a project type!";
+        auto ret = cmkr::gen::generate_project(args[2].c_str());
+        if (ret)
+            return "Initialization failure!";
         return "Directory initialized!";
     } else if (main_arg == "build") {
         auto ret = build::run(argc, argv);
         if (ret)
-            return "Run faced an error!";
-        return "Run completed!";
+            return "CMake build error!";
+        return "CMake run completed!";
     } else {
         return "Unknown argument!";
     }
@@ -41,5 +46,11 @@ const char *handle_args(int argc, char **argv) {
 } // namespace cmkr::args
 
 const char *cmkr_args_handle_args(int argc, char **argv) {
-    return cmkr::args::handle_args(argc, argv);
+    try {
+        return cmkr::args::handle_args(argc, argv);
+    } catch (const std::exception &e) {
+        return e.what();
+    } catch (...) {
+        return nullptr;
+    }
 }