spring-graphql CompilerConventionsPlugin 源码

  • 2022-08-16
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spring-graphql CompilerConventionsPlugin 代码

文件路径:/buildSrc/src/main/java/org/springframework/graphql/build/compile/CompilerConventionsPlugin.java

/*
 * Copyright 2002-2021 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.graphql.build.compile;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import org.gradle.api.Plugin;
import org.gradle.api.Project;
import org.gradle.api.plugins.JavaLibraryPlugin;
import org.gradle.api.plugins.JavaPlugin;
import org.gradle.api.tasks.compile.JavaCompile;

/**
 * {@link Plugin} that applies conventions for compiling Java sources in Spring Framework.
 *
 * @author Brian Clozel
 * @author Sam Brannen
 * @author Sebastien Deleuze
 */
public class CompilerConventionsPlugin implements Plugin<Project> {

	private static final List<String> COMPILER_ARGS;

	private static final List<String> TEST_COMPILER_ARGS;

	static {
		List<String> commonCompilerArgs = Arrays.asList(
				"-Xlint:serial", "-Xlint:cast", "-Xlint:classfile", "-Xlint:dep-ann",
				"-Xlint:divzero", "-Xlint:empty", "-Xlint:finally", "-Xlint:overrides",
				"-Xlint:path", "-Xlint:static", "-Xlint:try", "-Xlint:-options",
				"-parameters"
		);
		COMPILER_ARGS = new ArrayList<>();
		COMPILER_ARGS.addAll(commonCompilerArgs);
		COMPILER_ARGS.addAll(Arrays.asList(
				"-Xlint:varargs", "-Xlint:fallthrough", "-Xlint:rawtypes", "-Xlint:deprecation",
				"-Xlint:unchecked", "-Werror"
		));
		TEST_COMPILER_ARGS = new ArrayList<>();
		TEST_COMPILER_ARGS.addAll(commonCompilerArgs);
		TEST_COMPILER_ARGS.addAll(Arrays.asList("-Xlint:-varargs", "-Xlint:-fallthrough", "-Xlint:-rawtypes",
				"-Xlint:-deprecation", "-Xlint:-unchecked"));
	}

	@Override
	public void apply(Project project) {
		project.getPlugins().withType(JavaLibraryPlugin.class, (javaPlugin) -> applyJavaCompileConventions(project));
	}

	/**
	 * Applies the common Java compiler options for main sources, test fixture sources, and
	 * test sources.
	 * @param project the current project
	 */
	private void applyJavaCompileConventions(Project project) {
		project.getTasks().withType(JavaCompile.class)
				.matching((compileTask) -> compileTask.getName().equals(JavaPlugin.COMPILE_JAVA_TASK_NAME))
				.forEach((compileTask) -> {
					compileTask.getOptions().setCompilerArgs(COMPILER_ARGS);
					compileTask.getOptions().setEncoding("UTF-8");
				});
		project.getTasks().withType(JavaCompile.class)
				.matching((compileTask) -> compileTask.getName().equals(JavaPlugin.COMPILE_TEST_JAVA_TASK_NAME)
						|| compileTask.getName().equals("compileTestFixturesJava"))
				.forEach((compileTask) -> {
					compileTask.getOptions().setCompilerArgs(TEST_COMPILER_ARGS);
					compileTask.getOptions().setEncoding("UTF-8");
				});
	}

}

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