Deduce home instead of setting it

src/singletons.h

@@ -10,12 +10,7 @@
 #include "menu.h"
 #include <gtkmm.h>
 #include <string>
-
-#ifdef _WIN32
-#define HOME "AppData"
-#else
-#define HOME "HOME"
-#endif
+#include "sourcefile.h"
 
 class Singleton {
 public:
@@ -32,9 +27,12 @@ public:
     static std::unique_ptr<Directories::Config> directories_;
     static std::unique_ptr<Terminal::Config> terminal_;
   };
-  static std::string config_dir() { return std::string(getenv(HOME)) + "/.juci/config/"; }
-  static std::string log_dir() { return std::string(getenv(HOME)) + "/.juci/log/"; }
-  static std::string style_dir() { return std::string(getenv(HOME)) + "/.juci/styles/"; }
+  static std::string create_config_path(const std::string &subfolder) {
+    return juci::filesystem::get_home_folder() + subfolder;
+  }
+  static std::string config_dir() { return create_config_path("/.juci/config/"); }
+  static std::string log_dir() { return create_config_path("/.juci/log/"); }
+  static std::string style_dir() { return create_config_path("/.juci/styles/"); }
   static Terminal *terminal();
   static Directories *directories();
   static Gtk::Label *status();

src/sourcefile.cc

@@ -15,6 +15,23 @@ std::string juci::filesystem::read(const std::string &path) {
   return ss.str();
 }
 
+std::string safe_get_env(const std::string &env) {
+  auto ptr = std::getenv(env.c_str());
+  return nullptr==ptr ? "" : std::string(ptr);
+}
+
+std::string juci::filesystem::get_home_folder() {
+  auto home=safe_get_env("HOME");
+  if(home.empty())
+    home=safe_get_env("AppData");
+  auto status = boost::filesystem::status(home);
+  if((status.permissions() & 0222)>=2) {
+    return home;
+  } else {
+    throw new std::exception;
+  }
+}
+
 int juci::filesystem::read(const std::string &path, Glib::RefPtr<Gtk::TextBuffer> text_buffer) {
   std::ifstream input(path, std::ofstream::binary);
   

src/sourcefile.h

@@ -25,6 +25,7 @@ namespace juci {
     static bool write(const boost::filesystem::path &path) { return write(path, ""); };
     static bool write(const std::string &path, Glib::RefPtr<Gtk::TextBuffer> text_buffer);
     static bool write(const boost::filesystem::path &path, Glib::RefPtr<Gtk::TextBuffer> text_buffer) { return write(path.string(), text_buffer); }
+    static std::string get_home_folder();
   };
 } // namepace juci
 #endif  // JUCI_SOURCEFILE_H_