HHH-19098 Disable implicit loading of the default import script

Author: dreab8

hibernate-core/src/main/java/org/hibernate/cfg/SchemaToolingSettings.java

@@ -391,6 +391,14 @@ public interface SchemaToolingSettings {
 	@Deprecated
 	String HBM2DDL_IMPORT_FILES = "hibernate.hbm2ddl.import_files";
 
+	/**
+	 * Specifies if the default {@code /import.sql} script file should not be executed
+	 * when {@link #HBM2DDL_IMPORT_FILES} is not specified and {@value #HBM2DDL_AUTO} is set to {@code create} or {@code create-drop}.
+	 *
+	 * The default value is {@code false}.
+	 */
+	String HBM2DDL_SKIP_DEFAULT_IMPORT_FILE = "hibernate.hbm2ddl.skip_default_import_file";
+
 	/**
 	 * Specifies whether to automatically create also the database schema/catalog.
 	 * The default is false.

hibernate-core/src/main/java/org/hibernate/tool/schema/internal/SchemaCreatorImpl.java

@@ -60,7 +60,9 @@
 import static org.hibernate.cfg.AvailableSettings.HBM2DDL_IMPORT_FILES;
 import static org.hibernate.cfg.AvailableSettings.HBM2DDL_LOAD_SCRIPT_SOURCE;
 import static org.hibernate.cfg.AvailableSettings.JAKARTA_HBM2DDL_LOAD_SCRIPT_SOURCE;
+import static org.hibernate.cfg.SchemaToolingSettings.HBM2DDL_SKIP_DEFAULT_IMPORT_FILE;
 import static org.hibernate.internal.util.collections.CollectionHelper.setOfSize;
+import static org.hibernate.internal.util.config.ConfigurationHelper.getBoolean;
 import static org.hibernate.internal.util.config.ConfigurationHelper.getString;
 import static org.hibernate.tool.schema.internal.Helper.applyScript;
 import static org.hibernate.tool.schema.internal.Helper.applySqlStrings;
@@ -597,11 +599,24 @@ private void applyImportSources(
 				commandExtractor,
 				dialect,
 				formatter,
-				hasDefaultImportFileScriptBeenExecuted ? "" : DEFAULT_IMPORT_FILE,
+				hasDefaultImportFileScriptBeenExecuted ? "" : getDefaultImportFile( options ),
 				targets
 		);
 	}
 
+	private String getDefaultImportFile(ExecutionOptions options) {
+		if ( skipDefaultFileImport( options ) ) {
+			return "";
+		}
+		else {
+			return DEFAULT_IMPORT_FILE;
+		}
+	}
+
+	private static boolean skipDefaultFileImport(ExecutionOptions options) {
+		return getBoolean( HBM2DDL_SKIP_DEFAULT_IMPORT_FILE, options.getConfigurationValues(), false );
+	}
+
 	/**
 	 * In principle, we should format the commands in the import script if the
 	 * {@code format} parameter is {@code true}, and since it's supposed to be
@@ -642,16 +657,19 @@ private boolean applyImportScript(
 					formatter,
 					targets
 			);
-			return containsDefaultImportFile( importScriptInput );
+			return containsDefaultImportFile( importScriptInput, options );
 		}
 		else {
 			return false;
 		}
 	}
 
-	private boolean containsDefaultImportFile(ScriptSourceInput importScriptInput) {
+	private boolean containsDefaultImportFile(ScriptSourceInput importScriptInput,ExecutionOptions options ) {
+		if ( skipDefaultFileImport( options ) ) {
+			return false;
+		}
 		final URL defaultImportFileUrl = getClassLoaderService().locateResource( DEFAULT_IMPORT_FILE );
-		return defaultImportFileUrl != null && importScriptInput.containsScript(defaultImportFileUrl);
+		return defaultImportFileUrl != null && importScriptInput.containsScript( defaultImportFileUrl );
 	}
 
 	/**