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Merge #8407: [Qt] Add dbcache migration path

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893f379 [Qt] Add dbcache migration path (Jonas Schnelli)
This commit is contained in:
Wladimir J. van der Laan 2016-07-28 11:10:14 +02:00 committed by Alexander Block
parent 150d63f096
commit e7da254c5e
2 changed files with 24 additions and 1 deletions
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21
src/qt/optionsmodel.cpp
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@ -48,6 +48,8 @@ void OptionsModel::Init(bool resetSettings)
if (resetSettings)
Reset();
checkAndMigrate();
this->resetSettings = resetSettings;
QSettings settings;
@ -552,3 +554,22 @@ bool OptionsModel::isRestartRequired()
QSettings settings;
return settings.value("fRestartRequired", false).toBool();
}
void OptionsModel::checkAndMigrate()
{
// Migration of default values
// Check if the QSettings container was already loaded with this client version
QSettings settings;
static const char strSettingsVersionKey[] = "nSettingsVersion";
int settingsVersion = settings.contains(strSettingsVersionKey) ? settings.value(strSettingsVersionKey).toInt() : 0;
if (settingsVersion < CLIENT_VERSION)
{
// -dbcache was bumped from 100 to 300 in 0.13
// see https://github.com/bitcoin/bitcoin/pull/8273
// force people to upgrade to the new value if they are using 100MB
if (settingsVersion < 130000 && settings.contains("nDatabaseCache") && settings.value("nDatabaseCache").toLongLong() == 100)
settings.setValue("nDatabaseCache", (qint64)nDefaultDbCache);
settings.setValue(strSettingsVersionKey, CLIENT_VERSION);
}
}

4
src/qt/optionsmodel.h
View File

@ -95,9 +95,11 @@ private:
/* settings that were overriden by command-line */
QString strOverriddenByCommandLine;
/// Add option to list of GUI options overridden through command line/config file
// Add option to list of GUI options overridden through command line/config file
void addOverriddenOption(const std::string &option);
// Check settings version and upgrade default values if required
void checkAndMigrate();
Q_SIGNALS:
void displayUnitChanged(int unit);
void privateSendRoundsChanged();