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//
// Copyright 2017-2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0+
//
#include <uhd/utils/log.hpp>
#include <uhd/utils/paths.hpp>
#include <uhdlib/utils/paths.hpp>
#include <uhdlib/utils/prefs.hpp>
#include <config.h>
#include <boost/filesystem.hpp>
#include <cstdlib>
using namespace uhd;
namespace {
constexpr char UHD_CONF_FILE_VAR[] = "UHD_CONFIG_FILE";
inline bool _update_conf_file(
const std::string& path, const std::string& config_type, config_parser& conf_file)
{
if (not path.empty()) {
UHD_LOG_TRACE("PREFS", "Trying to load " << path);
if (boost::filesystem::exists(path)) {
try {
conf_file.read_file(path);
UHD_LOG_DEBUG(
"PREFS", "Loaded " << config_type << " config file " << path);
return true;
} catch (...) {
UHD_LOG_DEBUG(
"PREFS", "Failed to load " << config_type << " config file " << path);
return false;
}
} else {
UHD_LOG_TRACE(
"PREFS", "No " << config_type << " config file found at " << path);
return false;
}
}
return false;
}
void update_from_key(
const std::string& key, const std::string& value, uhd::device_addr_t& user_args)
{
if (value.empty()) {
return;
}
const std::string key_str = key + "=" + value;
for (const auto& key : uhd::prefs::get_uhd_config().options(key_str)) {
user_args[key] = uhd::prefs::get_uhd_config().get<std::string>(key_str, key);
}
}
device_addr_t get_args(const uhd::device_addr_t& user_args,
const std::vector<std::string>& keys_to_update_from)
{
device_addr_t args;
for (const auto& key : keys_to_update_from) {
update_from_key(key, user_args.get(key, ""), args);
}
// Finally, copy over the original user args:
for (const auto& user_key : user_args.keys()) {
args[user_key] = user_args[user_key];
}
return args;
}
} // namespace
config_parser& uhd::prefs::get_uhd_config()
{
static config_parser _conf_files{};
static bool init_done = false;
if (not init_done) {
UHD_LOG_TRACE("CONF", "Initializing config file object...");
const std::string sys_conf_file = path_expandvars(UHD_SYS_CONF_FILE);
_update_conf_file(sys_conf_file, "system", _conf_files);
// prefer .config/uhd.conf
// otherwise ~/.uhd/uhd.conf
const std::string user_conf_file =
(get_xdg_config_home() / std::string(UHD_USER_CONF_FILE)).string();
const bool user_conf_loaded =
_update_conf_file(user_conf_file, "user", _conf_files);
// Config files can be in ~/.config/ or in ~/.uhd. The latter is
// considered deprecated. We load from there (if we have not already
// loaded from ~/.config), but we show a warning.
if (!user_conf_loaded
&& _update_conf_file(
(get_legacy_config_home() / std::string(UHD_USER_CONF_FILE)).string(),
"user",
_conf_files)) {
UHD_LOG_WARNING("PREFS",
"Loaded config from " << get_legacy_config_home().string()
<< ". This location is considered deprecated, "
"consider moving your config file to "
<< get_xdg_config_home().string() << " instead.");
}
std::string env_conf_file;
try { // getenv into std::string can fail
if (std::getenv(UHD_CONF_FILE_VAR) != NULL) {
env_conf_file = std::string(std::getenv(UHD_CONF_FILE_VAR));
}
_update_conf_file(env_conf_file, "ENV", _conf_files);
} catch (const std::exception&) {
// nop
}
init_done = true;
UHD_LOG_TRACE("PREFS", "Done initializing.");
}
return _conf_files;
}
device_addr_t uhd::prefs::get_usrp_args(const uhd::device_addr_t& user_args)
{
const std::vector<std::string> keys_to_update_from = {"type", "product", "serial"};
return get_args(user_args, keys_to_update_from);
}
device_addr_t uhd::prefs::get_dpdk_args(const uhd::device_addr_t& user_args)
{
const std::vector<std::string> keys_to_update_from = {"use_dpdk"};
return get_args(user_args, keys_to_update_from);
}
device_addr_t uhd::prefs::get_dpdk_nic_args(const uhd::device_addr_t& user_args)
{
const std::vector<std::string> keys_to_update_from = {"dpdk_mac"};
return get_args(user_args, keys_to_update_from);
}
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