feat(Tools/DbImport): implement separated app for importing DB (#11614)

src/tools/dbimport/Main.cpp

@@ -0,0 +1,151 @@
+/*
+ * This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Affero General Public License as published by the
+ * Free Software Foundation; either version 3 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 Affero General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "Banner.h"
+#include "Common.h"
+#include "Config.h"
+#include "DatabaseEnv.h"
+#include "DatabaseLoader.h"
+#include "IoContext.h"
+#include "Log.h"
+#include "MySQLThreading.h"
+#include "Util.h"
+#include <boost/program_options.hpp>
+#include <boost/version.hpp>
+#include <csignal>
+#include <filesystem>
+#include <iostream>
+#include <openssl/crypto.h>
+#include <openssl/opensslv.h>
+
+#ifndef _ACORE_DB_IMPORT_CONFIG
+#define _ACORE_DB_IMPORT_CONFIG "dbimport.conf"
+#endif
+
+using namespace boost::program_options;
+namespace fs = std::filesystem;
+
+bool StartDB();
+void StopDB();
+variables_map GetConsoleArguments(int argc, char** argv, fs::path& configFile);
+
+/// Launch the db import server
+int main(int argc, char** argv)
+{
+    signal(SIGABRT, &Acore::AbortHandler);
+
+    // Command line parsing
+    auto configFile = fs::path(sConfigMgr->GetConfigPath() + std::string(_ACORE_DB_IMPORT_CONFIG));
+    auto vm = GetConsoleArguments(argc, argv, configFile);
+
+    // exit if help is enabled
+    if (vm.count("help"))
+        return 0;
+
+    // Add file and args in config
+    sConfigMgr->Configure(configFile.generic_string(), std::vector<std::string>(argv, argv + argc));
+
+    if (!sConfigMgr->LoadAppConfigs())
+        return 1;
+
+    // Init logging
+    sLog->Initialize();
+
+    Acore::Banner::Show("dbimport",
+        [](std::string_view text)
+        {
+            LOG_INFO("dbimport", text);
+        },
+        []()
+        {
+            LOG_INFO("dbimport", "> Using configuration file:       {}", sConfigMgr->GetFilename());
+            LOG_INFO("dbimport", "> Using SSL version:              {} (library: {})", OPENSSL_VERSION_TEXT, SSLeay_version(SSLEAY_VERSION));
+            LOG_INFO("dbimport", "> Using Boost version:            {}.{}.{}", BOOST_VERSION / 100000, BOOST_VERSION / 100 % 1000, BOOST_VERSION % 100);
+        }
+    );
+
+    // Initialize the database connection
+    if (!StartDB())
+        return 1;
+
+    std::shared_ptr<void> dbHandle(nullptr, [](void*) { StopDB(); });
+
+    LOG_INFO("dbimport", "Halting process...");
+
+    return 0;
+}
+
+/// Initialize connection to the database
+bool StartDB()
+{
+    MySQL::Library_Init();
+
+    // Load databases
+    DatabaseLoader loader("dbimport");
+    loader
+        .AddDatabase(LoginDatabase, "Login")
+        .AddDatabase(CharacterDatabase, "Character")
+        .AddDatabase(WorldDatabase, "World");
+
+    if (!loader.Load())
+        return false;
+
+    LOG_INFO("dbimport", "Started database connection pool.");
+    return true;
+}
+
+/// Close the connection to the database
+void StopDB()
+{
+    CharacterDatabase.Close();
+    WorldDatabase.Close();
+    LoginDatabase.Close();
+    MySQL::Library_End();
+}
+
+variables_map GetConsoleArguments(int argc, char** argv, fs::path& configFile)
+{
+    options_description all("Allowed options");
+    all.add_options()
+        ("help,h", "print usage message")
+        ("version,v", "print version build info")
+        ("dry-run,d", "Dry run")
+        ("config,c", value<fs::path>(&configFile)->default_value(fs::path(sConfigMgr->GetConfigPath() + std::string(_ACORE_DB_IMPORT_CONFIG))), "use <arg> as configuration file");
+
+    variables_map variablesMap;
+
+    try
+    {
+        store(command_line_parser(argc, argv).options(all).allow_unregistered().run(), variablesMap);
+        notify(variablesMap);
+    }
+    catch (std::exception const& e)
+    {
+        std::cerr << e.what() << "\n";
+    }
+
+    if (variablesMap.count("help"))
+    {
+        std::cout << all << "\n";
+    }
+    else if (variablesMap.count("dry-run"))
+    {
+        sConfigMgr->setDryRun(true);
+    }
+
+    return variablesMap;
+}