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Automatically migrate client mod storage (#11960)

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Jude Melton-Houghton 2022-01-27 16:24:30 -05:00 committed by GitHub
parent 47735c273c
commit fc161e757c
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 43 additions and 5 deletions
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28
src/client/client.cpp
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@ -50,6 +50,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "clientmap.h"
#include "clientmedia.h"
#include "version.h"
#include "database/database-files.h"
#include "database/database-sqlite3.h"
#include "serialization.h"
#include "guiscalingfilter.h"
@ -140,6 +141,33 @@ Client::Client(
m_cache_save_interval = g_settings->getU16("server_map_save_interval");
}
void Client::migrateModStorage()
{
std::string mod_storage_dir = porting::path_user + DIR_DELIM + "client";
std::string old_mod_storage = mod_storage_dir + DIR_DELIM + "mod_storage";
if (fs::IsDir(old_mod_storage)) {
infostream << "Migrating client mod storage to SQLite3 database" << std::endl;
{
ModMetadataDatabaseFiles files_db(mod_storage_dir);
std::vector<std::string> mod_list;
files_db.listMods(&mod_list);
for (const std::string &modname : mod_list) {
infostream << "Migrating client mod storage for mod " << modname << std::endl;
StringMap meta;
files_db.getModEntries(modname, &meta);
for (const auto &pair : meta) {
m_mod_storage_database->setModEntry(modname, pair.first, pair.second);
}
}
}
if (!fs::Rename(old_mod_storage, old_mod_storage + ".bak")) {
// Execution cannot move forward if the migration does not complete.
throw BaseException("Could not finish migrating client mod storage");
}
infostream << "Finished migration of client mod storage" << std::endl;
}
}
void Client::loadMods()
{
// Don't load mods twice.

3
src/client/client.h
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@ -385,6 +385,9 @@ public:
bool registerModStorage(ModMetadata *meta) override;
void unregisterModStorage(const std::string &name) override;
// Migrates away old files-based mod storage if necessary
void migrateModStorage();
// The following set of functions is used by ClientMediaDownloader
// Insert a media file appropriately into the appropriate manager
bool loadMedia(const std::string &data, const std::string &filename,

7
src/client/game.cpp
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@ -1466,11 +1466,18 @@ bool Game::connectToServer(const GameStartData &start_data,
return false;
}
try {
client = new Client(start_data.name.c_str(),
start_data.password, start_data.address,
*draw_control, texture_src, shader_src,
itemdef_manager, nodedef_manager, sound, eventmgr,
m_rendering_engine, connect_address.isIPv6(), m_game_ui.get());
client->migrateModStorage();
} catch (const BaseException &e) {
*error_message = fmtgettext("Error creating client: %s", e.what());
errorstream << *error_message << std::endl;
return false;
}
client->m_simple_singleplayer_mode = simple_singleplayer_mode;