Add resource hints for schema and data scripts

This only registers the default locations, not the one users can provide
via 'spring.sql.init.schema-locations' and
'spring.sql.init.data-locations'.

Closes gh-31533

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/sql/init/SqlDataSourceScriptDatabaseInitializer.java

@@ -20,6 +20,7 @@ import javax.sql.DataSource;
 
 import org.springframework.boot.jdbc.init.DataSourceScriptDatabaseInitializer;
 import org.springframework.boot.sql.init.DatabaseInitializationSettings;
+import org.springframework.context.annotation.ImportRuntimeHints;
 
 /**
  * {@link DataSourceScriptDatabaseInitializer} for the primary SQL database. May be
@@ -29,6 +30,7 @@ import org.springframework.boot.sql.init.DatabaseInitializationSettings;
  * @author Phillip Webb
  * @since 2.6.0
  */
+@ImportRuntimeHints(SqlInitializationScriptsRuntimeHints.class)
 public class SqlDataSourceScriptDatabaseInitializer extends DataSourceScriptDatabaseInitializer {
 
 	/**

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/sql/init/SqlInitializationScriptsRuntimeHints.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2012-2022 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.autoconfigure.sql.init;
+
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.RuntimeHintsRegistrar;
+
+/**
+ * {@link RuntimeHintsRegistrar} for SQL initialization scripts.
+ *
+ * @author Moritz Halbritter
+ */
+class SqlInitializationScriptsRuntimeHints implements RuntimeHintsRegistrar {
+
+	@Override
+	public void registerHints(RuntimeHints hints, ClassLoader classLoader) {
+		hints.resources().registerPattern("schema.sql").registerPattern("schema-*.sql");
+		hints.resources().registerPattern("data.sql").registerPattern("data-*.sql");
+	}
+
+}

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/sql/init/SqlR2dbcScriptDatabaseInitializer.java

@@ -21,6 +21,7 @@ import io.r2dbc.spi.ConnectionFactory;
 import org.springframework.boot.autoconfigure.batch.BatchDataSourceScriptDatabaseInitializer;
 import org.springframework.boot.r2dbc.init.R2dbcScriptDatabaseInitializer;
 import org.springframework.boot.sql.init.DatabaseInitializationSettings;
+import org.springframework.context.annotation.ImportRuntimeHints;
 
 /**
  * {@link R2dbcScriptDatabaseInitializer} for the primary SQL database. May be registered
@@ -30,6 +31,7 @@ import org.springframework.boot.sql.init.DatabaseInitializationSettings;
  * @author Phillip Webb
  * @since 2.6.0
  */
+@ImportRuntimeHints(SqlInitializationScriptsRuntimeHints.class)
 public class SqlR2dbcScriptDatabaseInitializer extends R2dbcScriptDatabaseInitializer {
 
 	/**

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/sql/init/SqlInitializationScriptsRuntimeHintsTests.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright 2012-2022 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.autoconfigure.sql.init;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.predicate.RuntimeHintsPredicates;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link SqlInitializationScriptsRuntimeHints}.
+ *
+ * @author Moritz Halbritter
+ */
+class SqlInitializationScriptsRuntimeHintsTests {
+
+	@Test
+	void shouldRegisterSchemaHints() {
+		RuntimeHints hints = new RuntimeHints();
+		new SqlInitializationScriptsRuntimeHints().registerHints(hints, getClass().getClassLoader());
+		assertThat(RuntimeHintsPredicates.resource().forResource("schema.sql")).accepts(hints);
+		assertThat(RuntimeHintsPredicates.resource().forResource("schema-all.sql")).accepts(hints);
+		assertThat(RuntimeHintsPredicates.resource().forResource("schema-mysql.sql")).accepts(hints);
+		assertThat(RuntimeHintsPredicates.resource().forResource("schema-postgres.sql")).accepts(hints);
+		assertThat(RuntimeHintsPredicates.resource().forResource("schema-oracle.sql")).accepts(hints);
+	}
+
+	@Test
+	void shouldRegisterDataHints() {
+		RuntimeHints hints = new RuntimeHints();
+		new SqlInitializationScriptsRuntimeHints().registerHints(hints, getClass().getClassLoader());
+		assertThat(RuntimeHintsPredicates.resource().forResource("data.sql")).accepts(hints);
+		assertThat(RuntimeHintsPredicates.resource().forResource("data-all.sql")).accepts(hints);
+		assertThat(RuntimeHintsPredicates.resource().forResource("data-mysql.sql")).accepts(hints);
+		assertThat(RuntimeHintsPredicates.resource().forResource("data-postgres.sql")).accepts(hints);
+		assertThat(RuntimeHintsPredicates.resource().forResource("data-oracle.sql")).accepts(hints);
+	}
+
+}