Mac: replace executeCommand with posix apis

Author: EinTim23

src/backends/darwin.mm

@@ -23,29 +23,47 @@ void hideDockIcon(bool shouldHide) {
     return filePath;
 }
 
-NSString *executeCommand(NSString *command, NSArray *arguments) {
-    NSTask *task = [[NSTask alloc] init];
-    task.launchPath = command;
-    task.arguments = arguments;
+std::string executeCommand(const std::string &command, const std::vector<std::string> &arguments) {
+    int pipefd[2];
+    pipe(pipefd);
+
+    pid_t pid = fork();
+    if (pid == 0) {
+        dup2(pipefd[1], STDOUT_FILENO);
+        close(pipefd[0]);
+        close(pipefd[1]);
+
+        std::vector<char *> argv;
+        argv.push_back(const_cast<char *>(command.c_str()));
+        for (const auto &arg : arguments) argv.push_back(const_cast<char *>(arg.c_str()));
+        argv.push_back(nullptr);
+
+        execv(command.c_str(), argv.data());
+        _exit(1);
+    }
+
+    close(pipefd[1]);
 
-    NSPipe *pipe = [NSPipe pipe];
-    task.standardOutput = pipe;
-    task.standardError = [NSPipe pipe];
-    [task launch];
+    std::string output;
+    char buffer[4096];
+    ssize_t count;
+    while ((count = read(pipefd[0], buffer, sizeof(buffer))) > 0) {
+        output.append(buffer, count);
+    }
 
-    NSData *data = [[pipe fileHandleForReading] readDataToEndOfFile];
-    NSString *output = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
-    [task waitUntilExit];
+    close(pipefd[0]);
+    waitpid(pid, nullptr, 0);
 
     return output;
 }
 
 std::shared_ptr<MediaInfo> backend::getMediaInformation() {
-    // apple decided to prevent apps not signed by them to use media remote, so we use an apple script instead. But that script only works on Sonoma or newer and the other one is arguably better, so keep the old method as well
+    // apple decided to prevent apps not signed by them to use media remote, so we use an apple script instead. But that
+    // script only works on Sonoma or newer and the other one is arguably better, so keep the old method as well
     if (@available(macOS 15.0, *)) {
         static NSString *script = getFilePathFromBundle(@"MediaRemote", @"js");
-        NSString *output = executeCommand(@"/usr/bin/osascript", @[ @"-l", @"JavaScript", script ]);
-        nlohmann::json j = nlohmann::json::parse([output UTF8String]);
+        std::string output = executeCommand("/usr/bin/osascript", {"-l", "JavaScript", script.UTF8String});
+        nlohmann::json j = nlohmann::json::parse(output);
 
         std::string appName = j["player"].get<std::string>();
         if (appName == "none")