Use spotless plugin for formating (#308)

.mvn/jvm.config

@@ -0,0 +1,5 @@
+--add-exports jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED

license-header

@@ -0,0 +1,14 @@
+/*
+ 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.
+ =======================================================================
+ */

pom.xml

@@ -1,5 +1,5 @@
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
 
  <modelVersion>4.0.0</modelVersion>
 
@@ -44,6 +44,7 @@
  <maven.javadoc.skip>true</maven.javadoc.skip>
  <maven.source.skip>true</maven.source.skip>
  <gpg.skip>true</gpg.skip>
+ <spotless.version>2.10.3</spotless.version>
  </properties>
 
  <repositories>
@@ -102,19 +103,19 @@
  <artifactId>junit-jupiter-engine</artifactId>
  <version>${junit.version}</version>
  <scope>test</scope>
- </dependency>
-  <dependency>
-  <groupId>org.openjdk.jmh</groupId>
-  <artifactId>jmh-core</artifactId>
-  <version>${jmh.version}</version>
-   <scope>test</scope>
-  </dependency>
-  <dependency>
-  <groupId>org.openjdk.jmh</groupId>
-  <artifactId>jmh-generator-annprocess</artifactId>
-  <version>${jmh.version}</version>
+  </dependency>
+  <dependency>
+  <groupId>org.openjdk.jmh</groupId>
+  <artifactId>jmh-core</artifactId>
+  <version>${jmh.version}</version>
+   <scope>test</scope>
+  </dependency>
+  <dependency>
+  <groupId>org.openjdk.jmh</groupId>
+  <artifactId>jmh-generator-annprocess</artifactId>
+  <version>${jmh.version}</version>
  <scope>test</scope>
-  </dependency>
+  </dependency>
  </dependencies>
  </dependencyManagement>
 
@@ -299,6 +300,36 @@
  <updateMatchingVersions>true</updateMatchingVersions>
  </configuration>
  </plugin>
+ <plugin>
+ <groupId>com.diffplug.spotless</groupId>
+ <artifactId>spotless-maven-plugin</artifactId>
+ <version>${spotless.version}</version>
+ <configuration>
+ <ratchetFrom>origin/master</ratchetFrom>
+
+ <lineEndings/>
+ <java>
+ <googleJavaFormat/>
+
+ <removeUnusedImports/>
+
+ <licenseHeader>
+ <file>./license-header</file>
+ </licenseHeader>
+ </java>
+ </configuration>
+
+ <executions>
+ <execution>
+ <!-- Runs in initialize phase to fail fast in case of formatting issues (should be before codegen).-->
+ <id>spotless-check</id>
+ <phase>initialize</phase>
+ <goals>
+ <goal>check</goal>
+ </goals>
+ </execution>
+ </executions>
+ </plugin>
  </plugins>
  <pluginManagement>
  <plugins>

tensorflow-core/tensorflow-core-generator/pom.xml

@@ -59,6 +59,18 @@
  </archive>
  </configuration>
  </plugin>
+ <plugin>
+ <groupId>com.diffplug.spotless</groupId>
+ <artifactId>spotless-maven-plugin</artifactId>
+ <version>${spotless.version}</version>
+ <configuration>
+ <java>
+ <excludes>
+ <exclude>src/main/java/org/tensorflow/proto/framework/**</exclude>
+ </excludes>
+ </java>
+ </configuration>
+ </plugin>
  </plugins>
  </build>
 </project>