Method persistent_storage

src/common/filesystem.cpp:208–262

}

persistent_storage::persistent_storage() {
#ifndef _WIN32

  auto get_home = [](std::string &home_out, std::string &subdirectory) -> bool {
    if(const char* home = std::getenv("XDG_DATA_HOME")) {
      home_out = home;
      subdirectory = "acpp";
      return true;
    }

    if (const char* home = std::getenv("HOME")) {
      home_out = home;
      subdirectory = ".acpp";
      return true;
    }
        
    const char* home = getpwuid(getuid())->pw_dir;
    if(home) {
      home_out = home;
      subdirectory = ".acpp";
      return true;
    }

    return false;
  };

  if(!settings::try_retrieve_settings_variable("appdb_dir", _base_dir)) {
    std::string home, subdirectory;
    if (get_home(home, subdirectory)) {
      _base_dir = (fs::path{home} / subdirectory).string();
    } else {
      _base_dir = (fs::current_path() / ".acpp").string();
    }
  }

  std::string app_path = get_this_executable_path();
  _this_app_dir = generate_app_dir(app_path);
  
#else
  _base_dir = (fs::current_path() / ".acpp").string();
  _this_app_dir = (fs::path{_base_dir} / "apps" / "global").string();
#endif

   _jit_cache_dir = (fs::path{_this_app_dir} / "jit-cache").string();

  fs::create_directories(_base_dir);
  fs::create_directories(_this_app_dir);
  fs::create_directories(_jit_cache_dir);

#ifndef _WIN32
  _this_app_db = std::make_unique<db::appdb>(generate_appdb_path(app_path));
#else
  _this_app_db = std::make_unique<db::appdb>(generate_appdb_path(""));
#endif
}

std::string persistent_storage::generate_app_dir(const std::string& app_path) const {
  std::string app_subdirectory = "global";