#792 Force migration of SQLite when necessary (#1371)

- Detect if a migration is necessary
- Create a backup
- Perform the migration

src/main/java/fr/xephi/authme/datasource/converter/SqliteToSql.java

@@ -3,9 +3,11 @@ package fr.xephi.authme.datasource.converter;
 import fr.xephi.authme.datasource.DataSource;
 import fr.xephi.authme.datasource.DataSourceType;
 import fr.xephi.authme.datasource.SQLite;
+import fr.xephi.authme.initialization.DataFolder;
 import fr.xephi.authme.settings.Settings;
 
 import javax.inject.Inject;
+import java.io.File;
 import java.sql.SQLException;
 
 /**
@@ -14,15 +16,17 @@ import java.sql.SQLException;
 public class SqliteToSql extends AbstractDataSourceConverter<SQLite> {
 
     private final Settings settings;
+    private final File dataFolder;
 
     @Inject
-    SqliteToSql(Settings settings, DataSource dataSource) {
+    SqliteToSql(Settings settings, DataSource dataSource, @DataFolder File dataFolder) {
         super(dataSource, DataSourceType.MYSQL);
         this.settings = settings;
+        this.dataFolder = dataFolder;
     }
 
     @Override
-    protected SQLite getSource() throws SQLException, ClassNotFoundException {
-        return new SQLite(settings);
+    protected SQLite getSource() throws SQLException {
+        return new SQLite(settings, dataFolder);
     }
 }