Change to canonical paths for executable paths

include/Startup.h

@@ -13,6 +13,7 @@
 
 void InitLauncher();
 beammp_fs_string GetEP(const beammp_fs_char* P = nullptr);
+std::filesystem::path GetBP(const beammp_fs_char* P = nullptr);
 std::filesystem::path GetGamePath();
 std::string GetVer();
 std::string GetPatch();

src/Startup.cpp

@@ -14,7 +14,10 @@
 #if defined(_WIN32)
 #elif defined(__linux__)
 #include <unistd.h>
-#endif
+#elif defined (__APPLE__)
+#include <unistd.h>
+#include <libproc.h>
+#endif // __APPLE__
 #include "Http.h"
 #include "Logger.h"
 #include "Network/network.hpp"
@@ -94,6 +97,34 @@ beammp_fs_string GetEP(const beammp_fs_char* P) {
     }();
     return Ret;
 }
+
+beammp_fs_string GetBP(const beammp_fs_char* P) {
+    fs::path fspath = {};
+#if defined(_WIN32)
+    beammp_fs_char path[256];
+    GetModuleFileNameW(nullptr, path, sizeof(path));
+    fspath = path;
+#elif defined(__linux__)
+    fspath = fs::canonical("/proc/self/exe");
+#elif defined(__APPLE__)
+    pid_t pid = getpid();
+    char path[PROC_PIDPATHINFO_MAXSIZE];
+    // While this is fine for a raw executable,
+    // an application bundle is read-only and these files
+    // should instead be placed in Application Support.
+    proc_pidpath(pid, path, sizeof(path));
+    fspath = std::string(path);
+ #else
+    fspath = beammp_fs_string(P);
+#endif
+    fspath = fs::weakly_canonical(fspath.string() + "/..");
+#if defined(_WIN32)
+    return fspath.wstring();
+#else
+    return fspath.string();
+#endif
+}
+
 #if defined(_WIN32)
 void ReLaunch() {
     std::wstring Arg;
@@ -103,7 +134,7 @@ void ReLaunch() {
     }
     info("Relaunch!");
     system("cls");
-    ShellExecuteW(nullptr, L"runas", (GetEP() + GetEN()).c_str(), Arg.c_str(), nullptr, SW_SHOWNORMAL);
+    ShellExecuteW(nullptr, L"runas", (GetBP() / GetEN()).c_str(), Arg.c_str(), nullptr, SW_SHOWNORMAL);
     ShowWindow(GetConsoleWindow(), 0);
     std::this_thread::sleep_for(std::chrono::seconds(1));
     exit(1);
@@ -114,7 +145,7 @@ void URelaunch() {
         Arg += Utils::ToWString(options.argv[c - 1]);
         Arg += L" ";
     }
-    ShellExecuteW(nullptr, L"open", (GetEP() + GetEN()).c_str(), Arg.c_str(), nullptr, SW_SHOWNORMAL);
+    ShellExecuteW(nullptr, L"open", (GetBP() / GetEN()).c_str(), Arg.c_str(), nullptr, SW_SHOWNORMAL);
     ShowWindow(GetConsoleWindow(), 0);
     std::this_thread::sleep_for(std::chrono::seconds(1));
     exit(1);
@@ -128,7 +159,7 @@ void ReLaunch() {
     }
     info("Relaunch!");
     system("clear");
-    int ret = execv(options.executable_name.c_str(), const_cast<char**>(options.argv));
+    int ret = execv((GetBP() / GetEN()).c_str(), const_cast<char**>(options.argv));
     if (ret < 0) {
         error(std::string("execv() failed with: ") + strerror(errno) + ". Failed to relaunch");
         exit(1);
@@ -137,7 +168,7 @@ void ReLaunch() {
     exit(1);
 }
 void URelaunch() {
-    int ret = execv(options.executable_name.c_str(), const_cast<char**>(options.argv));
+    int ret = execv((GetBP() / GetEN()).c_str(), const_cast<char**>(options.argv));
     if (ret < 0) {
         error(std::string("execv() failed with: ") + strerror(errno) + ". Failed to relaunch");
         exit(1);
@@ -169,7 +200,7 @@ void CheckForUpdates(const std::string& CV) {
         "https://backend.beammp.com/version/launcher?branch=" + Branch + "&pk=" + PublicKey);
 
     transform(LatestHash.begin(), LatestHash.end(), LatestHash.begin(), ::tolower);
-    beammp_fs_string EP(GetEP() + GetEN()), Back(GetEP() + beammp_wide("BeamMP-Launcher.back"));
+    beammp_fs_string BP(GetBP() / GetEN()), Back(GetBP() / beammp_wide("BeamMP-Launcher.back"));
 
     std::string FileHash = Utils::GetSha256HashReallyFastFile(EP);
 
@@ -254,8 +285,8 @@ void InitLauncher() {
 }
 #endif
 
-size_t DirCount(const std::filesystem::path& path) {
-    return (size_t)std::distance(std::filesystem::directory_iterator { path }, std::filesystem::directory_iterator {});
+size_t DirCount(const fs::path& path) {
+    return (size_t)std::distance(fs::directory_iterator { path }, fs::directory_iterator {});
 }
 
 void CheckMP(const beammp_fs_string& Path) {

src/main.cpp

@@ -39,6 +39,7 @@ int main(int argc, const char** argv) try {
     curl_global_init(CURL_GLOBAL_ALL);
 
     GetEP(Utils::ToWString(std::string(argv[0])).c_str());
+    info("BP Path: " + GetBP(Utils::ToWString(std::string(argv[0])).c_str()));
 
     InitLog();
     ConfigInit();