getCurrentExecutablePath() on macOS

Author: MeijisIrlnd

.gitignore

@@ -21,6 +21,7 @@ Resources/[Pp]resets
 *.pkg
 **.pkg
 installer/macOS/[Pp]ayload/*
+.vscode
 .vscode/*
 !.vscode/settings.json
 !.vscode/tasks.json

source/utils/marvin_Utils.cpp

@@ -10,18 +10,23 @@
 #include <marvin/utils/marvin_Utils.h>
 
 #if defined(MARVIN_MACOS)
-
+#include <mach-o/dyld.h>
 #elif defined(MARVIN_WINDOWS)
 #include <windows.h>
 #elif defined(MARVIN_LINUX)
 
 #endif
 namespace marvin::utils {
     std::optional<std::string> getCurrentExecutablePath() {
+        constexpr static auto maxLength{ 512 };
 #if defined(MARVIN_MACOS)
-        return {};
+        char data[maxLength];
+        std::uint32_t length{ sizeof(data) };
+        const auto resCode = _NSGetExecutablePath(data, &length);
+        if(resCode != 0) return {};
+        std::string res = data;
+        return res;
 #elif defined(MARVIN_WINDOWS)
-        constexpr static auto maxLength{ 512 };
         char data[maxLength];
         auto dest = (LPSTR)data;
         GetModuleFileName(nullptr, dest, maxLength);

tests/CMakeLists.txt

@@ -15,6 +15,7 @@ set(MARVIN_TEST_SOURCE
     ${CMAKE_CURRENT_SOURCE_DIR}/math/marvin_LeakyIntegratorTests.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/math/marvin_VecOpsTests.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/math/marvin_WindowedSincInterpolatorTests.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/utils/marvin_UtilsTests.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/utils/marvin_SmoothedValueTests.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/utils/marvin_RandomTests.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/utils/marvin_FIFOTests.cpp

tests/utils/marvin_UtilsTests.cpp

@@ -0,0 +1,22 @@
+// ========================================================================================================
+//  _______ _______ ______ ___ ___ _______ _______
+// |   |   |   _   |   __ \   |   |_     _|    |  |
+// |       |       |      <   |   |_|   |_|       |
+// |__|_|__|___|___|___|__|\_____/|_______|__|____|
+//
+// This file is part of the Marvin open source library and is licensed under the terms of the MIT License.
+//
+// ========================================================================================================
+
+#include <marvin/utils/marvin_Utils.h>
+#include <catch2/catch_test_macros.hpp>
+#include <catch2/matchers/catch_matchers_floating_point.hpp>
+#include <iostream>
+namespace marvin::testing { 
+    TEST_CASE("Test getCurrentExecutablePath()") { 
+        const auto pathRes = utils::getCurrentExecutablePath();
+        REQUIRE(pathRes);
+        std::cout << *pathRes << "\n";
+    }
+
+}