703 lines
13 KiB
C++
703 lines
13 KiB
C++
/*
|
|
Minetest
|
|
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License along
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include "settings.h"
|
|
#include "irrlichttypes_bloated.h"
|
|
#include "exceptions.h"
|
|
#include "jthread/jmutexautolock.h"
|
|
#include "strfnd.h"
|
|
#include <iostream>
|
|
#include <fstream>
|
|
#include <sstream>
|
|
#include "debug.h"
|
|
#include "log.h"
|
|
#include "util/serialize.h"
|
|
#include "filesys.h"
|
|
#include <cctype>
|
|
|
|
|
|
Settings & Settings::operator += (const Settings &other)
|
|
{
|
|
update(other);
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
Settings & Settings::operator = (const Settings &other)
|
|
{
|
|
if (&other == this)
|
|
return *this;
|
|
|
|
JMutexAutoLock lock(m_mutex);
|
|
JMutexAutoLock lock2(other.m_mutex);
|
|
|
|
clearNoLock();
|
|
updateNoLock(other);
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
bool Settings::parseConfigLines(std::istream &is,
|
|
const std::string &end)
|
|
{
|
|
JMutexAutoLock lock(m_mutex);
|
|
|
|
std::string name, value;
|
|
bool end_found = false;
|
|
|
|
while (is.good() && !end_found) {
|
|
if (parseConfigObject(is, name, value, end, end_found)) {
|
|
m_settings[name] = value;
|
|
}
|
|
}
|
|
if (!end.empty() && !end_found) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
bool Settings::readConfigFile(const char *filename)
|
|
{
|
|
std::ifstream is(filename);
|
|
if (!is.good())
|
|
return false;
|
|
|
|
JMutexAutoLock lock(m_mutex);
|
|
|
|
std::string name, value;
|
|
|
|
while (is.good()) {
|
|
if (parseConfigObject(is, name, value)) {
|
|
m_settings[name] = value;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
void Settings::writeLines(std::ostream &os) const
|
|
{
|
|
JMutexAutoLock lock(m_mutex);
|
|
|
|
for (std::map<std::string, std::string>::const_iterator
|
|
i = m_settings.begin();
|
|
i != m_settings.end(); ++i) {
|
|
os << i->first << " = " << i->second << '\n';
|
|
}
|
|
}
|
|
|
|
|
|
bool Settings::updateConfigFile(const char *filename)
|
|
{
|
|
std::list<std::string> objects;
|
|
std::set<std::string> updated;
|
|
bool changed = false;
|
|
|
|
JMutexAutoLock lock(m_mutex);
|
|
|
|
// Read the file and check for differences
|
|
{
|
|
std::ifstream is(filename);
|
|
while (is.good()) {
|
|
getUpdatedConfigObject(is, objects,
|
|
updated, changed);
|
|
}
|
|
}
|
|
|
|
// If something not yet determined to have been changed, check if
|
|
// any new stuff was added
|
|
if (!changed) {
|
|
for (std::map<std::string, std::string>::const_iterator
|
|
i = m_settings.begin();
|
|
i != m_settings.end(); ++i) {
|
|
if (updated.find(i->first) == updated.end()) {
|
|
changed = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// If nothing was actually changed, skip writing the file
|
|
if (!changed) {
|
|
return true;
|
|
}
|
|
|
|
// Write stuff back
|
|
{
|
|
std::ostringstream ss(std::ios_base::binary);
|
|
|
|
// Write changes settings
|
|
for (std::list<std::string>::const_iterator
|
|
i = objects.begin();
|
|
i != objects.end(); ++i) {
|
|
ss << (*i);
|
|
}
|
|
|
|
// Write new settings
|
|
for (std::map<std::string, std::string>::const_iterator
|
|
i = m_settings.begin();
|
|
i != m_settings.end(); ++i) {
|
|
if (updated.find(i->first) != updated.end())
|
|
continue;
|
|
ss << i->first << " = " << i->second << '\n';
|
|
}
|
|
|
|
if (!fs::safeWriteToFile(filename, ss.str())) {
|
|
errorstream << "Error writing configuration file: \""
|
|
<< filename << "\"" << std::endl;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
bool Settings::parseCommandLine(int argc, char *argv[],
|
|
std::map<std::string, ValueSpec> &allowed_options)
|
|
{
|
|
int nonopt_index = 0;
|
|
for (int i = 1; i < argc; i++) {
|
|
std::string arg_name = argv[i];
|
|
if (arg_name.substr(0, 2) != "--") {
|
|
// If option doesn't start with -, read it in as nonoptX
|
|
if (arg_name[0] != '-'){
|
|
std::string name = "nonopt";
|
|
name += itos(nonopt_index);
|
|
set(name, arg_name);
|
|
nonopt_index++;
|
|
continue;
|
|
}
|
|
errorstream << "Invalid command-line parameter \""
|
|
<< arg_name << "\": --<option> expected." << std::endl;
|
|
return false;
|
|
}
|
|
|
|
std::string name = arg_name.substr(2);
|
|
|
|
std::map<std::string, ValueSpec>::iterator n;
|
|
n = allowed_options.find(name);
|
|
if (n == allowed_options.end()) {
|
|
errorstream << "Unknown command-line parameter \""
|
|
<< arg_name << "\"" << std::endl;
|
|
return false;
|
|
}
|
|
|
|
ValueType type = n->second.type;
|
|
|
|
std::string value = "";
|
|
|
|
if (type == VALUETYPE_FLAG) {
|
|
value = "true";
|
|
} else {
|
|
if ((i + 1) >= argc) {
|
|
errorstream << "Invalid command-line parameter \""
|
|
<< name << "\": missing value" << std::endl;
|
|
return false;
|
|
}
|
|
value = argv[++i];
|
|
}
|
|
|
|
set(name, value);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
/***********
|
|
* Getters *
|
|
***********/
|
|
|
|
|
|
std::string Settings::get(const std::string &name) const
|
|
{
|
|
JMutexAutoLock lock(m_mutex);
|
|
|
|
std::map<std::string, std::string>::const_iterator n;
|
|
if ((n = m_settings.find(name)) == m_settings.end()) {
|
|
if ((n = m_defaults.find(name)) == m_defaults.end()) {
|
|
throw SettingNotFoundException("Setting [" + name + "] not found.");
|
|
}
|
|
}
|
|
return n->second;
|
|
}
|
|
|
|
|
|
bool Settings::getBool(const std::string &name) const
|
|
{
|
|
return is_yes(get(name));
|
|
}
|
|
|
|
|
|
u16 Settings::getU16(const std::string &name) const
|
|
{
|
|
return stoi(get(name), 0, 65535);
|
|
}
|
|
|
|
|
|
s16 Settings::getS16(const std::string &name) const
|
|
{
|
|
return stoi(get(name), -32768, 32767);
|
|
}
|
|
|
|
|
|
s32 Settings::getS32(const std::string &name) const
|
|
{
|
|
return stoi(get(name));
|
|
}
|
|
|
|
|
|
float Settings::getFloat(const std::string &name) const
|
|
{
|
|
return stof(get(name));
|
|
}
|
|
|
|
|
|
u64 Settings::getU64(const std::string &name) const
|
|
{
|
|
u64 value = 0;
|
|
std::string s = get(name);
|
|
std::istringstream ss(s);
|
|
ss >> value;
|
|
return value;
|
|
}
|
|
|
|
|
|
v2f Settings::getV2F(const std::string &name) const
|
|
{
|
|
v2f value;
|
|
Strfnd f(get(name));
|
|
f.next("(");
|
|
value.X = stof(f.next(","));
|
|
value.Y = stof(f.next(")"));
|
|
return value;
|
|
}
|
|
|
|
|
|
v3f Settings::getV3F(const std::string &name) const
|
|
{
|
|
v3f value;
|
|
Strfnd f(get(name));
|
|
f.next("(");
|
|
value.X = stof(f.next(","));
|
|
value.Y = stof(f.next(","));
|
|
value.Z = stof(f.next(")"));
|
|
return value;
|
|
}
|
|
|
|
|
|
u32 Settings::getFlagStr(const std::string &name, const FlagDesc *flagdesc,
|
|
u32 *flagmask) const
|
|
{
|
|
std::string val = get(name);
|
|
return std::isdigit(val[0])
|
|
? stoi(val)
|
|
: readFlagString(val, flagdesc, flagmask);
|
|
}
|
|
|
|
|
|
// N.B. if getStruct() is used to read a non-POD aggregate type,
|
|
// the behavior is undefined.
|
|
bool Settings::getStruct(const std::string &name, const std::string &format,
|
|
void *out, size_t olen) const
|
|
{
|
|
std::string valstr;
|
|
|
|
try {
|
|
valstr = get(name);
|
|
} catch (SettingNotFoundException &e) {
|
|
return false;
|
|
}
|
|
|
|
if (!deSerializeStringToStruct(valstr, format, out, olen))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
bool Settings::exists(const std::string &name) const
|
|
{
|
|
JMutexAutoLock lock(m_mutex);
|
|
|
|
return (m_settings.find(name) != m_settings.end() ||
|
|
m_defaults.find(name) != m_defaults.end());
|
|
}
|
|
|
|
|
|
std::vector<std::string> Settings::getNames() const
|
|
{
|
|
std::vector<std::string> names;
|
|
for (std::map<std::string, std::string>::const_iterator
|
|
i = m_settings.begin();
|
|
i != m_settings.end(); ++i) {
|
|
names.push_back(i->first);
|
|
}
|
|
return names;
|
|
}
|
|
|
|
|
|
|
|
/***************************************
|
|
* Getters that don't throw exceptions *
|
|
***************************************/
|
|
|
|
|
|
bool Settings::getNoEx(const std::string &name, std::string &val) const
|
|
{
|
|
try {
|
|
val = get(name);
|
|
return true;
|
|
} catch (SettingNotFoundException &e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
bool Settings::getFlag(const std::string &name) const
|
|
{
|
|
try {
|
|
return getBool(name);
|
|
} catch(SettingNotFoundException &e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
bool Settings::getFloatNoEx(const std::string &name, float &val) const
|
|
{
|
|
try {
|
|
val = getFloat(name);
|
|
return true;
|
|
} catch (SettingNotFoundException &e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
bool Settings::getU16NoEx(const std::string &name, u16 &val) const
|
|
{
|
|
try {
|
|
val = getU16(name);
|
|
return true;
|
|
} catch (SettingNotFoundException &e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
bool Settings::getS16NoEx(const std::string &name, s16 &val) const
|
|
{
|
|
try {
|
|
val = getS16(name);
|
|
return true;
|
|
} catch (SettingNotFoundException &e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
bool Settings::getS32NoEx(const std::string &name, s32 &val) const
|
|
{
|
|
try {
|
|
val = getS32(name);
|
|
return true;
|
|
} catch (SettingNotFoundException &e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
bool Settings::getU64NoEx(const std::string &name, u64 &val) const
|
|
{
|
|
try {
|
|
val = getU64(name);
|
|
return true;
|
|
} catch (SettingNotFoundException &e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
bool Settings::getV2FNoEx(const std::string &name, v2f &val) const
|
|
{
|
|
try {
|
|
val = getV2F(name);
|
|
return true;
|
|
} catch (SettingNotFoundException &e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
bool Settings::getV3FNoEx(const std::string &name, v3f &val) const
|
|
{
|
|
try {
|
|
val = getV3F(name);
|
|
return true;
|
|
} catch (SettingNotFoundException &e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
// N.B. getFlagStrNoEx() does not set val, but merely modifies it. Thus,
|
|
// val must be initialized before using getFlagStrNoEx(). The intention of
|
|
// this is to simplify modifying a flags field from a default value.
|
|
bool Settings::getFlagStrNoEx(const std::string &name, u32 &val, FlagDesc *flagdesc) const
|
|
{
|
|
try {
|
|
u32 flags, flagmask;
|
|
|
|
flags = getFlagStr(name, flagdesc, &flagmask);
|
|
|
|
val &= ~flagmask;
|
|
val |= flags;
|
|
|
|
return true;
|
|
} catch (SettingNotFoundException &e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/***********
|
|
* Setters *
|
|
***********/
|
|
|
|
|
|
void Settings::set(const std::string &name, std::string value)
|
|
{
|
|
JMutexAutoLock lock(m_mutex);
|
|
|
|
m_settings[name] = value;
|
|
}
|
|
|
|
|
|
void Settings::set(const std::string &name, const char *value)
|
|
{
|
|
JMutexAutoLock lock(m_mutex);
|
|
|
|
m_settings[name] = value;
|
|
}
|
|
|
|
|
|
void Settings::setDefault(const std::string &name, std::string value)
|
|
{
|
|
JMutexAutoLock lock(m_mutex);
|
|
|
|
m_defaults[name] = value;
|
|
}
|
|
|
|
|
|
void Settings::setBool(const std::string &name, bool value)
|
|
{
|
|
set(name, value ? "true" : "false");
|
|
}
|
|
|
|
|
|
void Settings::setS16(const std::string &name, s16 value)
|
|
{
|
|
set(name, itos(value));
|
|
}
|
|
|
|
|
|
void Settings::setS32(const std::string &name, s32 value)
|
|
{
|
|
set(name, itos(value));
|
|
}
|
|
|
|
|
|
void Settings::setU64(const std::string &name, u64 value)
|
|
{
|
|
std::ostringstream os;
|
|
os << value;
|
|
set(name, os.str());
|
|
}
|
|
|
|
|
|
void Settings::setFloat(const std::string &name, float value)
|
|
{
|
|
set(name, ftos(value));
|
|
}
|
|
|
|
|
|
void Settings::setV2F(const std::string &name, v2f value)
|
|
{
|
|
std::ostringstream os;
|
|
os << "(" << value.X << "," << value.Y << ")";
|
|
set(name, os.str());
|
|
}
|
|
|
|
|
|
void Settings::setV3F(const std::string &name, v3f value)
|
|
{
|
|
std::ostringstream os;
|
|
os << "(" << value.X << "," << value.Y << "," << value.Z << ")";
|
|
set(name, os.str());
|
|
}
|
|
|
|
|
|
void Settings::setFlagStr(const std::string &name, u32 flags,
|
|
const FlagDesc *flagdesc, u32 flagmask)
|
|
{
|
|
set(name, writeFlagString(flags, flagdesc, flagmask));
|
|
}
|
|
|
|
|
|
bool Settings::setStruct(const std::string &name, const std::string &format, void *value)
|
|
{
|
|
std::string structstr;
|
|
if (!serializeStructToString(&structstr, format, value))
|
|
return false;
|
|
|
|
set(name, structstr);
|
|
return true;
|
|
}
|
|
|
|
|
|
bool Settings::remove(const std::string &name)
|
|
{
|
|
JMutexAutoLock lock(m_mutex);
|
|
return m_settings.erase(name);
|
|
}
|
|
|
|
|
|
void Settings::clear()
|
|
{
|
|
JMutexAutoLock lock(m_mutex);
|
|
clearNoLock();
|
|
}
|
|
|
|
|
|
void Settings::updateValue(const Settings &other, const std::string &name)
|
|
{
|
|
if (&other == this)
|
|
return;
|
|
|
|
JMutexAutoLock lock(m_mutex);
|
|
|
|
try {
|
|
std::string val = other.get(name);
|
|
m_settings[name] = val;
|
|
} catch (SettingNotFoundException &e) {
|
|
}
|
|
}
|
|
|
|
|
|
void Settings::update(const Settings &other)
|
|
{
|
|
if (&other == this)
|
|
return;
|
|
|
|
JMutexAutoLock lock(m_mutex);
|
|
JMutexAutoLock lock2(other.m_mutex);
|
|
|
|
updateNoLock(other);
|
|
}
|
|
|
|
|
|
inline bool Settings::parseConfigObject(std::istream &is,
|
|
std::string &name, std::string &value)
|
|
{
|
|
bool end_found = false;
|
|
return parseConfigObject(is, name, value, "", end_found);
|
|
}
|
|
|
|
|
|
// NOTE: This function might be expanded to allow multi-line settings.
|
|
bool Settings::parseConfigObject(std::istream &is,
|
|
std::string &name, std::string &value,
|
|
const std::string &end, bool &end_found)
|
|
{
|
|
std::string line;
|
|
std::getline(is, line);
|
|
std::string trimmed_line = trim(line);
|
|
|
|
// Ignore empty lines and comments
|
|
if (trimmed_line.empty() || trimmed_line[0] == '#') {
|
|
value = trimmed_line;
|
|
return false;
|
|
}
|
|
if (trimmed_line == end) {
|
|
end_found = true;
|
|
return false;
|
|
}
|
|
|
|
Strfnd sf(trimmed_line);
|
|
|
|
name = trim(sf.next("="));
|
|
if (name.empty()) {
|
|
value = trimmed_line;
|
|
return false;
|
|
}
|
|
|
|
value = trim(sf.next("\n"));
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
void Settings::getUpdatedConfigObject(std::istream &is,
|
|
std::list<std::string> &dst,
|
|
std::set<std::string> &updated,
|
|
bool &changed)
|
|
{
|
|
std::string name, value;
|
|
if (!parseConfigObject(is, name, value)) {
|
|
dst.push_back(value + '\n');
|
|
return;
|
|
}
|
|
|
|
if (m_settings.find(name) != m_settings.end()) {
|
|
std::string new_value = m_settings[name];
|
|
|
|
if (new_value != value) {
|
|
changed = true;
|
|
}
|
|
|
|
dst.push_back(name + " = " + new_value + '\n');
|
|
updated.insert(name);
|
|
} else { // File contains a setting which is not in m_settings
|
|
changed = true;
|
|
}
|
|
}
|
|
|
|
|
|
void Settings::updateNoLock(const Settings &other)
|
|
{
|
|
m_settings.insert(other.m_settings.begin(), other.m_settings.end());
|
|
m_defaults.insert(other.m_defaults.begin(), other.m_defaults.end());
|
|
}
|
|
|
|
|
|
void Settings::clearNoLock()
|
|
{
|
|
m_settings.clear();
|
|
m_defaults.clear();
|
|
}
|
|
|