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#include <cstdlib>
#include "migration.hpp"
#include "options/options.hpp"
#include "compat/util.hpp"
#include <QString>
#include <QSettings>
#include <QChar>
#include <QDebug>
#include <memory>
// individual migrations are run in the UI thread. they can be interactive if necessary.
namespace migrations {
namespace detail {
void migrator::register_migration(migration* m)
{
const QString date = m->unique_date();
for (migration* m2 : migrations())
if (m2->unique_date() == date)
std::abort();
if (date.size() != 11)
abort();
if (date[8] != QChar('_'))
abort();
const QString year = date.left(4);
const QString month = date.mid(4, 2);
const QString day = date.mid(6, 2);
const QString serial = date.mid(9, 2);
bool ok = true;
if (year < "2016")
abort();
const int month_ = to_int(month, ok), day_ = to_int(day, ok);
(void) to_int(year, ok);
(void) to_int(serial, ok);
if (!ok)
abort();
if (month_ < 1 || month_ > 12)
abort();
if (day_ < 1 || day_ > 31)
abort();
migrations().push_back(m);
}
std::vector<migration*>& migrator::migrations()
{
static std::vector<migration*> ret;
return ret;
}
QString migrator::last_migration_time()
{
QString ret;
std::shared_ptr<QSettings> s(options::group::ini_file());
s->beginGroup("migrations");
ret = s->value("last-migration-at", "19700101_00").toString();
s->endGroup();
return ret;
}
QString migrator::time_after_migrations()
{
const std::vector<migration*> list = sorted_migrations();
if (list.size() == 0u)
return QStringLiteral("19700101_00");
QString ret = list[list.size() - 1]->unique_date();
ret += QStringLiteral("~");
return ret;
}
void migrator::set_last_migration_time(const QString& val)
{
std::shared_ptr<QSettings> s(options::group::ini_file());
s->beginGroup("migrations");
s->setValue("last-migration-at", val);
s->endGroup();
}
std::vector<migration*> migrator::sorted_migrations()
{
std::vector<migration*> list(migrations());
using mm = migration*;
std::sort(list.begin(), list.end(), [](const mm x, const mm y) { return x->unique_date() < y->unique_date(); });
return list;
}
int migrator::to_int(const QString& str, bool& ok)
{
bool tmp = false;
const int ret = int(str.toUInt(&tmp));
ok &= tmp;
return ret;
}
std::vector<QString> migrator::run()
{
std::vector<migration*> migrations = sorted_migrations();
std::vector<QString> done;
const QString last_migration = last_migration_time();
for (migration* m_ : migrations)
{
migration& m(*m_);
const QString date = m.unique_date();
if (date <= last_migration)
continue;
if (m.should_run())
{
m.run();
done.push_back(m.name());
}
}
mark_config_as_not_needing_migration();
if (done.size())
{
for (const QString& name : done)
{
const QByteArray data = name.toUtf8();
qDebug() << "migrate:" << data.constData();
}
}
return done;
}
}
migration::migration() {}
migration::~migration() {}
} // ns
std::vector<QString> run_migrations()
{
return migrations::detail::migrator::run();
}
void mark_config_as_not_needing_migration()
{
using m = migrations::detail::migrator;
m::mark_config_as_not_needing_migration();
}
void migrations::detail::migrator::mark_config_as_not_needing_migration()
{
set_last_migration_time(time_after_migrations());
}
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