Add sql formatter to maven

README.md

@@ -65,7 +65,7 @@ lib('npm.PrettierFormatterStep')                 +'{{yes}}       | {{yes}}
 lib('npm.TsFmtFormatterStep')                    +'{{yes}}       | {{yes}}      | {{no}}       | {{no}}  |',
 lib('python.BlackStep')                          +'{{yes}}       | {{no}}       | {{no}}       | {{no}}  |',
 lib('scala.ScalaFmtStep')                        +'{{yes}}       | {{yes}}      | {{yes}}      | {{no}}  |',
-lib('sql.DBeaverSQLFormatterStep')               +'{{yes}}       | {{no}}       | {{yes}}      | {{no}}  |',
+lib('sql.DBeaverSQLFormatterStep')               +'{{yes}}       | {{yes}}      | {{yes}}      | {{no}}  |',
 extra('wtp.EclipseWtpFormatterStep')             +'{{yes}}       | {{yes}}      | {{no}}       | {{no}}  |',
 '| [(Your FormatterStep here)](CONTRIBUTING.md#how-to-add-a-new-formatterstep) | {{no}} | {{no}} | {{no}} | {{no}} |',
 ].join('\n');

plugin-maven/src/main/java/com/diffplug/spotless/maven/AbstractSpotlessMojo.java

@@ -54,6 +54,7 @@
 import com.diffplug.spotless.maven.java.Java;
 import com.diffplug.spotless.maven.kotlin.Kotlin;
 import com.diffplug.spotless.maven.scala.Scala;
+import com.diffplug.spotless.maven.sql.Sql;
 import com.diffplug.spotless.maven.typescript.Typescript;
 
 public abstract class AbstractSpotlessMojo extends AbstractMojo {
@@ -112,6 +113,9 @@ public abstract class AbstractSpotlessMojo extends AbstractMojo {
 	@Parameter
 	private Antlr4 antlr4;
 
+	@Parameter
+	private Sql sql;
+
 	@Parameter(property = "spotlessFiles")
 	private String filePatterns;
 
@@ -201,7 +205,7 @@ private FileLocator getFileLocator() {
 	}
 
 	private List<FormatterFactory> getFormatterFactories() {
-		return Stream.concat(formats.stream(), Stream.of(java, scala, kotlin, cpp, typescript, antlr4))
+		return Stream.concat(formats.stream(), Stream.of(java, scala, kotlin, cpp, typescript, antlr4, sql))
 				.filter(Objects::nonNull)
 				.collect(toList());
 	}

plugin-maven/src/main/java/com/diffplug/spotless/maven/sql/DBeaver.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2020 DiffPlug
+ *
+ * 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
+ *
+ *     http://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 com.diffplug.spotless.maven.sql;
+
+import java.util.Collections;
+import java.util.Optional;
+
+import org.apache.maven.plugins.annotations.Parameter;
+
+import com.diffplug.spotless.FormatterStep;
+import com.diffplug.spotless.maven.FormatterStepConfig;
+import com.diffplug.spotless.maven.FormatterStepFactory;
+import com.diffplug.spotless.sql.DBeaverSQLFormatterStep;
+
+public class DBeaver implements FormatterStepFactory {
+
+	@Parameter
+	private String configFile;
+
+	@Override
+	public FormatterStep newFormatterStep(FormatterStepConfig stepConfig) {
+		return DBeaverSQLFormatterStep.create(Optional.ofNullable(configFile).map(c -> stepConfig.getFileLocator().locateFile(c)).map(Collections::singleton).orElseGet(Collections::emptySet));
+	}
+}

plugin-maven/src/main/java/com/diffplug/spotless/maven/sql/Sql.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2020 DiffPlug
+ *
+ * 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
+ *
+ *     http://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 com.diffplug.spotless.maven.sql;
+
+import java.util.Collections;
+import java.util.Set;
+
+import com.diffplug.spotless.maven.FormatterFactory;
+
+/**
+ * A {@link FormatterFactory} implementation that corresponds to {@code <dbeaver>...</dbeaver>} configuration element.
+ * <p>
+ * It defines a formatter for sql source files.
+ */
+public class Sql extends FormatterFactory {
+	private static final String LICENSE_HEADER_DELIMITER = null;
+
+	@Override
+	public Set<String> defaultIncludes() {
+		return Collections.emptySet();
+	}
+
+	@Override
+	public String licenseHeaderDelimiter() {
+		return LICENSE_HEADER_DELIMITER;
+	}
+
+	public void addDbeaver(DBeaver dbeaver) {
+		addStepFactory(dbeaver);
+	}
+}

plugin-maven/src/test/java/com/diffplug/spotless/maven/MavenIntegrationHarness.java

@@ -122,6 +122,10 @@ protected void writePomWithTypescriptSteps(String... steps) throws IOException {
 		writePom(groupWithSteps("typescript", including("**/*.ts"), steps));
 	}
 
+	protected void writePomWithSqlSteps(String... steps) throws IOException {
+		writePom(groupWithSteps("sql", including("**/*.sql"), steps));
+	}
+
 	protected void writePomWithPrettierSteps(String includes, String... steps) throws IOException {
 		writePom(formats(groupWithSteps("format", including(includes), steps)));
 	}

plugin-maven/src/test/java/com/diffplug/spotless/maven/sql/SqlTest.java

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2016-2020 DiffPlug
+ *
+ * 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
+ *
+ *     http://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 com.diffplug.spotless.maven.sql;
+
+import org.junit.Test;
+
+import com.diffplug.spotless.maven.MavenIntegrationHarness;
+
+public class SqlTest extends MavenIntegrationHarness {
+	@Test
+	public void testDbeaverWithDefaultConfig() throws Exception {
+		writePomWithSqlSteps("<dbeaver/>");
+
+		setFile("src/main/resources/aFolder/create.sql").toResource("sql/dbeaver/create.dirty");
+		mavenRunner().withArguments("spotless:apply").runNoError();
+		assertFile("src/main/resources/aFolder/create.sql").sameAsResource("sql/dbeaver/create.clean");
+	}
+
+	@Test
+	public void testDbeaverWithAlternativeConfig() throws Exception {
+		writePomWithSqlSteps("<dbeaver><configFile>myConfig.properties</configFile></dbeaver>");
+		setFile("myConfig.properties").toResource("sql/dbeaver/sqlConfig2.properties");
+
+		setFile("src/main/resources/aFolder/create.sql").toResource("sql/dbeaver/create.dirty");
+		mavenRunner().withArguments("spotless:apply").runNoError();
+		assertFile("src/main/resources/aFolder/create.sql").sameAsResource("sql/dbeaver/create.clean.alternative");
+	}
+}