Ongoing implementation of migration utility

CMakeLists.txt

@@ -37,7 +37,7 @@ add_subdirectory( "deps/mysqlConnector" )
 add_subdirectory( "src/common" )
 
 add_subdirectory( "src/servers" )
-#add_subdirectory( "src/dbm" )
+add_subdirectory( "src/dbm" )
 
 add_subdirectory( "src/tools/exd_common_gen" )
 add_subdirectory( "src/tools/exd_struct_gen" )

src/dbm/DbManager.cpp

@@ -14,6 +14,21 @@ DbManager::~DbManager()
 
 }
 
+bool DbManager::execute( const std::string& sql )
+{
+  try
+  {
+    auto stmt = m_pConnection->createStatement();
+    bool result = stmt->execute( sql );
+    return result;
+  }
+  catch( std::runtime_error& e )
+  {
+    m_lastError = e.what();
+    return false;
+  }
+}
+
 bool DbManager::connect()
 {
   std::shared_ptr< Mysql::MySqlBase > base( new Mysql::MySqlBase() );
@@ -67,3 +82,55 @@ Mode DbManager::getMode() const
 {
   return m_mode;
 }
+
+bool DbManager::performAction()
+{
+  bool result = false;
+  execute( " SET autocommit = 0 " );
+  m_pConnection->beginTransaction();
+
+  switch( m_mode )
+  {
+    case Mode::INIT:
+      result = modeInit();
+      break;
+    case Mode::LIQUIDATE:
+      break;
+    case Mode::UPDATE:
+      break;
+    case Mode::CHECK:
+      break;
+    case Mode::CLEAN_CHARS:
+      break;
+  }
+  if( !result )
+    m_pConnection->rollbackTransaction();
+  else
+    m_pConnection->commitTransaction();
+
+  return result;
+}
+
+bool DbManager::modeInit()
+{
+
+  bool result = false;
+
+  if( selectSchema() )
+  {
+    m_lastError = "Database already existing, use <liquidate> mode first to remove it.";
+    return false;
+  }
+
+  if( !execute( "CREATE DATABASE " + m_database ) )
+    return false;
+
+  if( !execute( "CREATE TABLE `dbversion` (\n"
+                "  `major` int(11) NOT NULL,\n"
+                "  `minor` int(11) NOT NULL\n"
+                ") ENGINE=InnoDB DEFAULT CHARSET=latin1;" ) )
+    return false;
+
+
+  return false;
+}

src/dbm/DbManager.h

@@ -29,6 +29,12 @@ class DbManager
     bool connect();
     bool selectSchema();
 
+    bool execute( const std::string& sql );
+
+    bool performAction();
+
+    bool modeInit();
+
     virtual ~DbManager();
 
     const std::string& getLastError();

src/dbm/main.cpp

@@ -43,13 +43,8 @@ std::vector< std::string > getAllFilesInDir( const std::string& dirPath,
             ( std::find( dirSkipList.begin(), dirSkipList.end(), iter->path().filename() ) != dirSkipList.end() ) )
         {
           // Skip the iteration of current directory pointed by iterator
-#ifdef USING_BOOST
-          // Boost Fileystsem  API to skip current directory iteration
-          iter.no_push();
-#else
           // c++17 Filesystem API to skip current directory iteration
           iter.disable_recursion_pending();
-#endif
         }
         else
         {
@@ -57,7 +52,7 @@ std::vector< std::string > getAllFilesInDir( const std::string& dirPath,
           listOfFiles.push_back( iter->path().string() );
         }
 
-	std::error_code ec;
+        std::error_code ec;
         // Increment the iterator to point to next entry in recursive iteration
         iter.increment( ec );
         if( ec )
@@ -176,13 +171,19 @@ int main( int32_t argc, char* argv[] )
     return 0;
   }
 
-  if( !dbm.selectSchema() )
+  if( !dbm.performAction() )
   {
-    g_log.fatal( "Could not set schema!" );
+    g_log.fatal( "Could not perform action!" );
     g_log.fatal( dbm.getLastError() );
-    return 0;
   }
 
+  //if( !dbm.selectSchema() )
+  //{
+  //  g_log.fatal( "Could not set schema!" );
+  //  g_log.fatal( dbm.getLastError() );
+  //  return 0;
+  //}
+
 
 
   return 0;