build.gradle

import net.ltgt.gradle.errorprone.CheckSeverity
import org.gradle.internal.jvm.Jvm

buildscript {
  ext.versions = [
      'kotlin': '1.3.50',
      'okhttp': '3.14.9',
      'protobuf': '3.10.0',
      'jaxb': '2.3.1',
      'robovm': '2.3.9',
  ]
  ext.deps = [
      'kotlinStdLib': "org.jetbrains.kotlin:kotlin-stdlib:${versions.kotlin}",
      'kotlinCoroutines': 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.2',
      'okhttp': "com.squareup.okhttp3:okhttp:${versions.okhttp}",
      'mockwebserver': "com.squareup.okhttp3:mockwebserver:${versions.okhttp}",
      'junit': 'junit:junit:4.13',
      'assertj': 'org.assertj:assertj-core:3.13.2',
      'guava': 'com.google.guava:guava:28.1-jre',
      'android': 'com.google.android:android:4.1.1.4',
      'animalSnifferAnnotations': 'org.codehaus.mojo:animal-sniffer-annotations:1.18',
      'findBugsAnnotations': 'com.google.code.findbugs:jsr305:3.0.2',
      'androidxTestRunner': 'androidx.test:runner:1.1.0',
      'rxjava': 'io.reactivex:rxjava:1.3.8',
      'rxjava2': 'io.reactivex.rxjava2:rxjava:2.0.0',
      'rxjava3': 'io.reactivex.rxjava3:rxjava:3.0.0',
      'reactiveStreams': 'org.reactivestreams:reactive-streams:1.0.3',
      'scalaLibrary': 'org.scala-lang:scala-library:2.13.1',
      'gson': 'com.google.code.gson:gson:2.8.5',
      'jacksonDatabind': 'com.fasterxml.jackson.core:jackson-databind:2.10.5.1',
      'jaxbApi': "javax.xml.bind:jaxb-api:${versions.jaxb}",
      'jaxbImpl': "org.glassfish.jaxb:jaxb-runtime:${versions.jaxb}",
      'moshi': 'com.squareup.moshi:moshi:1.8.0',
      'protobuf': "com.google.protobuf:protobuf-java:${versions.protobuf}",
      'simpleXml': 'org.simpleframework:simple-xml:2.7.1',
      'wireRuntime': 'com.squareup.wire:wire-runtime:2.2.0',
      'jsoup': 'org.jsoup:jsoup:1.12.1',
      'robovm': "com.mobidevelop.robovm:robovm-rt:${versions.robovm}",
  ]

  dependencies {
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:${versions.kotlin}"
    classpath 'net.ltgt.gradle:gradle-errorprone-plugin:0.8.1'
    classpath 'com.android.tools.build:gradle:3.6.2'
    classpath 'com.vanniktech:gradle-maven-publish-plugin:0.9.0'
    classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.12'
    classpath 'ru.vyarus:gradle-animalsniffer-plugin:1.5.0'
    classpath 'gradle.plugin.com.github.sherter.google-java-format:google-java-format-gradle-plugin:0.9'
    classpath "com.mobidevelop.robovm:robovm-gradle-plugin:${versions.robovm}"
  }
  repositories {
    mavenCentral()
    google()
    jcenter()
    gradlePluginPortal()
  }
}

subprojects {
  repositories {
    mavenCentral()
    google()
    jcenter()
  }

  tasks.withType(JavaCompile).configureEach { task ->
    task.options.encoding = 'UTF-8'
    task.sourceCompatibility = JavaVersion.VERSION_1_8
    task.targetCompatibility = JavaVersion.VERSION_1_8
  }

  apply plugin: 'net.ltgt.errorprone'

  dependencies {
    errorproneJavac 'com.google.errorprone:javac:9+181-r4173-1'
    errorprone 'com.google.errorprone:error_prone_core:2.4.0'
  }

  tasks.withType(JavaCompile).configureEach { task ->
    task.options.errorprone {
      excludedPaths = '.*/build/generated/source/proto/.*'
      check('MissingFail', CheckSeverity.ERROR)
      check('MissingOverride', CheckSeverity.ERROR)
      check('UnusedException', CheckSeverity.ERROR)
      check('UnusedMethod', CheckSeverity.ERROR)
      check('UnusedNestedClass', CheckSeverity.ERROR)
      check('UnusedVariable', CheckSeverity.ERROR)
    }
  }

  plugins.withId('java-library') {
    // Animal Sniffer only works on JDK 11 or older currently.
    if (!Jvm.current().javaVersion.isJava12Compatible()) {
      project.apply plugin: 'ru.vyarus.animalsniffer'
      animalsniffer {
        sourceSets = [sourceSets.main] // Only check main sources, ignore test code.
      }
      dependencies {
        signature 'org.codehaus.mojo.signature:java18:1.0@signature'

        if (project.path != ':retrofit-converters:java8' &&
            project.path != ':retrofit-converters:jaxb' &&
            project.path != ':retrofit-adapters:java8') {
          signature 'net.sf.androidscents.signature:android-api-level-21:5.0.1_r2@signature'
        }
      }
    }

    // google-java-format only works on JDK 11 or newer.
    if (Jvm.current().javaVersion.isJava11Compatible()) {
      project.apply plugin: 'com.github.sherter.google-java-format'
      googleJavaFormat {
        toolVersion = '1.8'

        // By default, the GJF plugin includes all Java folders inside the project directory. This
        // does not work well with nested projects, especially when you want to exclude them.
        source = sourceSets*.allJava
      }
      afterEvaluate {
        def verify = tasks.getByName('verifyGoogleJavaFormat')
        tasks.getByName('check').dependsOn(verify)
        def prompt = tasks.create('promptGoogleJavaFormat') {
          doLast {
            println()
            println('To automatically format, run "./gradlew googleJavaFormat"')
            println()
          }
          onlyIf { verify.state.failure != null }
        }
        verify.finalizedBy(prompt)
      }
    }
  }

  plugins.withType(com.android.build.gradle.BasePlugin).configureEach { plugin ->
    plugin.extension.compileOptions {
      sourceCompatibility = JavaVersion.VERSION_1_8
      targetCompatibility = JavaVersion.VERSION_1_8
    }
  }

  tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJvmCompile).configureEach { task ->
    task.kotlinOptions {
      jvmTarget = '1.8'
    }
  }
}