Fork of the espurna firmware for `mhsw` switches
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/*
MIGRATE MODULE
Copyright (C) 2016-2019 by Xose Pérez <xose dot perez at gmail dot com>
*/
#include "settings.h"
#include <vector>
#include <utility>
namespace {
void delPrefixes(const char** prefixes, size_t size) {
std::vector<String> to_purge;
using namespace settings;
kv_store.foreach([&](kvs_type::KeyValueResult&& kv) {
auto key = kv.key.read();
for (size_t index = 0; index < size; ++index) {
if (key.startsWith(prefixes[index])) {
to_purge.push_back(std::move(key));
return;
}
}
});
for (auto& key : to_purge) {
delSetting(key);
}
}
template <size_t Size>
void delPrefixes(const char* (&&prefixes)[Size]) {
delPrefixes(prefixes, Size);
}
} // namespace
// Configuration versions
//
// 1: based on Embedis, no board definitions
// 2: based on Embedis, with board definitions 1-based
// 3: based on Embedis, with board definitions 0-based
// 4: based on Embedis, no board definitions
// 5: based on Embedis, updated rfb codes format
int migrateVersion() {
const static auto version = getSetting("cfg", CFG_VERSION);
if (version == CFG_VERSION) {
return 0;
}
return version;
}
void migrate() {
// We either get 0, when version did not change
// Or, the version we migrate from
const auto version = migrateVersion();
setSetting("cfg", CFG_VERSION);
if (!version) {
return;
}
// get rid of old keys that were never used until now
// and some very old keys that were forced via migrate.ino
switch (version) {
case 2:
delPrefixes({
"btnGPIO",
"ledGPIO",
"ledLogic",
"relayGPIO",
"relayType"
});
// fall through
case 3:
case 4:
delPrefixes({
"board",
"chGPIO",
"chLogic",
"ledGPIO",
"ledLogic",
"lightProvider",
"myChips",
"myDCKGPIO",
"myDIGPIO",
"relayGPIO",
"relayProvider",
"relayType",
"relays"
});
break;
}
saveSettings();
}