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/* -*- c++ -*- */
/*
* Copyright 2006 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <gr_prefs.h>
#include <gr_sys_paths.h>
#include <gr_constants.h>
#include <algorithm>
#include <boost/filesystem/operations.hpp>
#include <boost/filesystem/path.hpp>
#include <boost/filesystem/fstream.hpp>
namespace fs = boost::filesystem;
/*
* Stub implementations
*/
static gr_prefs s_default_singleton;
static gr_prefs *s_singleton = &s_default_singleton;
gr_prefs *
gr_prefs::singleton()
{
return s_singleton;
}
void
gr_prefs::set_singleton(gr_prefs *p)
{
s_singleton = p;
}
gr_prefs::gr_prefs()
{
_read_files();
}
gr_prefs::~gr_prefs()
{
// nop
}
std::vector<std::string>
gr_prefs::_sys_prefs_filenames()
{
std::vector<std::string> fnames;
fs::path dir = gr_prefsdir();
if(!fs::is_directory(dir))
return fnames;
fs::directory_iterator diritr(dir);
while(diritr != fs::directory_iterator()) {
fs::path p = *diritr++;
fnames.push_back(p.string());
}
std::sort(fnames.begin(), fnames.end());
// Find if there is a ~/.gnuradio/config file and add this to the
// beginning of the file list to override any preferences in the
// installed path config files.
fs::path homedir = fs::path(gr_appdata_path());
homedir /= ".gnuradio/config.conf";
std::cerr << "Checking path:" << homedir << std::endl;
if(fs::exists(homedir)) {
fnames.insert(fnames.begin(), homedir.string());
}
return fnames;
}
void
gr_prefs::_read_files()
{
std::vector<std::string> filenames = _sys_prefs_filenames();
std::vector<std::string>::iterator sitr;
char tmp[1024];
for(sitr = filenames.begin(); sitr != filenames.end(); sitr++) {
fs::ifstream fin(*sitr);
while(!fin.eof()) {
fin.getline(tmp, 1024);
std::string t(tmp);
// ignore empty lines or lines of just comments
if((t.size() > 0) && (t[0] != '#')) {
// remove any comments in the line
size_t hash = t.find("#");
// Use hash marks at the end of each segment as a delimiter
d_configs += t.substr(0, hash) + '#';
}
}
fin.close();
}
// Remove all whitespace
d_configs.erase(std::remove_if(d_configs.begin(), d_configs.end(), ::isspace), d_configs.end());
}
bool
gr_prefs::has_section(const std::string section)
{
size_t t = d_configs.find("[" + section + "]#");
return t != std::string::npos;
}
bool
gr_prefs::has_option(const std::string section, const std::string option)
{
if(has_section(section)) {
size_t sec = d_configs.find("[" + section + "]#");
size_t opt = d_configs.find("#" + option + "=", sec);
return opt != std::string::npos;
}
else {
return false;
}
}
const std::string
gr_prefs::get_string(const std::string section, const std::string option, const std::string default_val)
{
std::stringstream envname;
std::string secname=section, optname=option;
std::transform(section.begin(), section.end(), secname.begin(), ::toupper);
std::transform(option.begin(), option.end(), optname.begin(), ::toupper);
envname << "GR_CONF_" << secname << "_" << optname;
char *v = getenv(envname.str().c_str());
if(v) {
return std::string(v);
}
if(has_option(section, option)) {
std::string optname = "#" + option + "=";
size_t sec = d_configs.find("[" + section + "]#");
size_t opt = d_configs.find(optname, sec);
size_t start = opt + optname.size();
size_t end = d_configs.find("#", start);
size_t len = end - start;
return d_configs.substr(start, len);
}
else {
return default_val;
}
}
bool
gr_prefs::get_bool(const std::string section, const std::string option, bool default_val)
{
if(has_option(section, option)) {
std::string str = get_string(section, option, "");
if(str == "") {
return default_val;
}
std::transform(str.begin(), str.end(), str.begin(), ::tolower);
if((str == "true") || (str == "on") || (str == "1"))
return true;
else if((str == "false") || (str == "off") || (str == "0"))
return false;
else
return default_val;
}
else {
return default_val;
}
}
long
gr_prefs::get_long(const std::string section, const std::string option, long default_val)
{
if(has_option(section, option)) {
std::string str = get_string(section, option, "");
if(str == "") {
return default_val;
}
std::stringstream sstr(str);
long n;
sstr >> n;
return n;
}
else {
return default_val;
}
}
double
gr_prefs::get_double(const std::string section, const std::string option, double default_val)
{
if(has_option(section, option)) {
std::string str = get_string(section, option, "");
if(str == "") {
return default_val;
}
std::stringstream sstr(str);
double n;
sstr >> n;
return n;
}
else {
return default_val;
}
}
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