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jOOQ code generation plugin for Gradle
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/*
 * 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.
 *
 * Other licenses:
 * -----------------------------------------------------------------------------
 * Commercial licenses for this work are available. These replace the above
 * Apache-2.0 license and offer limited warranties, support, maintenance, and
 * commercial database integrations.
 *
 * For more information, please visit: https://www.jooq.org/legal/licensing
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */
package org.jooq.codegen.gradle;

import org.gradle.api.Action;
import org.gradle.api.Plugin;
import org.gradle.api.Project;
import org.gradle.api.artifacts.Configuration;
import org.gradle.api.tasks.SourceSet;
import org.gradle.api.tasks.SourceSetContainer;

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

/**
 * The jOOQ Codegen Plugin
 *
 * @author Lukas Eder
 */
public class CodegenPlugin implements Plugin {

    @Override
    public void apply(Project project) {
        CodegenPluginExtension extension = project.getExtensions().create("jooq",
            CodegenPluginExtension.class
        );

        Configuration codegenClasspath = project.getConfigurations().create("jooqCodegen");
        codegenClasspath.setDescription("The classpath used for code generation, including JDBC drivers, code generation extensions, etc.");

        extension.getExecutions().create("", configuration -> {
            configuration.unnamed = true;
        });

        List named = new ArrayList<>();

        extension.getExecutions().configureEach(configuration -> {
            if (!configuration.unnamed)
                named.add(configuration);

            project.getTasks().register(
                CodegenTask.taskName(configuration),
                CodegenTask.class,
                configuration,
                codegenClasspath
            ).configure(configureTask(named, configuration));
        });
    }

    static Action configureTask(
        List named,
        NamedConfiguration configuration
    ) {
        return task -> {
            if (configuration.unnamed) {
                task.named.addAll(named);

                for (NamedConfiguration other : named)
                    task.dependsOn(CodegenTask.taskName(other));
            }

            task.setDescription("jOOQ code generation" + (configuration.unnamed ? " for all executions" : " for the " + configuration.name + " execution"));
            task.setGroup("jOOQ");

            if (task.configuration.action == null) {
                SourceSetContainer source = task.getProject()
                    .getExtensions()
                    .findByType(SourceSetContainer.class);

                if (source != null) {
                    SourceSet main = source.findByName("main");

                    if (main != null)
                        main.getJava().srcDir(task.getOutputDirectory());
                }
            }
        };
    }
}