Parsing home directory from the operating system dynamically

src/HyprlandService.cpp

@@ -45,13 +45,13 @@ void HyprlandService::toggleClientFloating(Client& c) {
 
 void HyprlandService::setFloatingRule(bool b) {
   if (b) {
-    FileServices::createOrOverwriteFile(FLOATING_RULE_CONF_FILE, FLOATING_RULE);
+    FileServices::createOrOverwriteFile(ShellService::getHomePath()+FLOATING_RULE_CONF_FILE, FLOATING_RULE);
   }
   else {
-    FileServices::emptyFile(FLOATING_RULE_CONF_FILE);
+    FileServices::emptyFile(ShellService::getHomePath()+FLOATING_RULE_CONF_FILE);
   }
 };
 
 bool HyprlandService::isFloatingRulePresent() {
-  return FileServices::doesNonEmptyFileExist(FLOATING_RULE_CONF_FILE);
+  return FileServices::doesNonEmptyFileExist(ShellService::getHomePath()+FLOATING_RULE_CONF_FILE);
 };

src/ShellService.cpp

@@ -1,4 +1,6 @@
 #include "../include/ShellService.h"
+#include <pwd.h>
+#include <unistd.h>
 
 std::string ShellService::exec(const std::string& command) {
   char buffer[128];
@@ -19,4 +21,22 @@ std::string ShellService::exec(const std::string& command) {
   }
 
   return result;
-};
+};
+
+std::string ShellService::getHomePath()
+{
+  char* home = getenv("HOME");
+  if (home && *home) {
+      return std::string(home);
+  }
+
+  // Fallback: try to get home directory from passwd if HOME is not set
+  // This assumes that the 'htt' process is ran with the user as the process owner. Should it be run with systemd or some other wonky method, it will behave unexpectedly
+  struct passwd* pw = getpwuid(getuid());
+  if (pw && pw->pw_dir) {
+      return std::string(pw->pw_dir);
+  }
+
+  // As a last resort, exit
+  exit(1);
+}