com.palantir.baseline.tasks.CompileRefasterTask Maven / Gradle / Ivy

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A Gradle plugin for applying Baseline-recommended build and IDE settings
There is a newer version: 5.68.0
/*
 * (c) Copyright 2019 Palantir Technologies Inc. All rights reserved.
 *
 * 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.palantir.baseline.tasks;

import com.google.common.collect.ImmutableList;
import java.io.File;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.gradle.api.artifacts.Configuration;
import org.gradle.api.artifacts.ResolvedArtifact;
import org.gradle.api.provider.Property;
import org.gradle.api.tasks.InputFiles;
import org.gradle.api.tasks.OutputFile;
import org.gradle.api.tasks.compile.JavaCompile;
import org.gradle.work.InputChanges;

public class CompileRefasterTask extends JavaCompile {

    private final Property refasterSources =
            getProject().getObjects().property(Configuration.class);
    private final Property refasterRulesFile = getProject().getObjects().property(File.class);

    public CompileRefasterTask() {
        // Don't care about .class files
        getDestinationDirectory().set(getTemporaryDir());

        // Ensure we hit the incremental code-path since we override it
        getOptions().setIncremental(true);
    }

    @Override
    protected final void compile(InputChanges inputs) {
        // Clear out the default error-prone providers
        getOptions().getCompilerArgumentProviders().clear();
        getOptions()
                .setCompilerArgs(ImmutableList.of("-Xplugin:BaselineRefasterCompiler --out "
                        + refasterRulesFile.get().getAbsolutePath()));

        // Extract Java sources
        List javaSources =
                getRefasterSources().get().getResolvedConfiguration().getFirstLevelModuleDependencies().stream()
                        .flatMap(dep -> dep.getModuleArtifacts().stream())
                        .map(ResolvedArtifact::getFile)
                        .flatMap(file -> {
                            if (file.getName().endsWith(".jar")) {
                                return getProject().zipTree(file).getFiles().stream()
                                        .filter(zipFile -> zipFile.getName().endsWith(".java"));
                            } else if (file.getName().endsWith(".java")) {
                                return Stream.of(file);
                            } else {
                                getLogger().warn("Skipping refaster rule: {}", file);
                                return Stream.empty();
                            }
                        })
                        .collect(Collectors.toList());

        if (!javaSources.isEmpty()) {
            setSource(javaSources);
            super.compile(inputs);
        } else {
            setDidWork(false);
        }
    }

    @InputFiles
    public final Property getRefasterSources() {
        return refasterSources;
    }

    @OutputFile
    public final Property getRefasterRulesFile() {
        return refasterRulesFile;
    }
}