apply plugin: 'java'
apply plugin: 'nebula.lint'
apply plugin: 'net.ltgt.apt'
apply plugin: 'net.ltgt.errorprone'
apply plugin: 'checkstyle'

// Checkstyle should run as part of the testing task
tasks.test.dependsOn tasks.checkstyleMain
tasks.test.dependsOn tasks.checkstyleTest

dependencies {
    // compatibility with Java 8
    errorproneJavac("com.google.errorprone:javac:9+181-r4173-1")
    errorprone("com.google.errorprone:error_prone_core:2.3.3")
}

tasks.withType(JavaCompile).configureEach {
    // The -Werror flag causes Intellij to fail on deprecated api use.
    // Allow IDE user to turn off this flag by specifying a Gradle VM
    // option from inside the IDE.
    if (System.getProperty('no_werror') != 'true') {
        options.compilerArgs << "-Werror"
    }
    options.compilerArgs << "-Werror"
    options.errorprone.disableWarningsInGeneratedCode = true
    options.errorprone.errorproneArgumentProviders.add([
            asArguments: {
                return ['-XepExcludedPaths:.*/build/generated/.*']
            }] as CommandLineArgumentProvider)
    // Disable features currently incompatible with Java 12
    if ((JavaVersion.current().majorVersion as Integer) > 11) {
      // This check is broken in Java 12.
      // See https://github.com/google/error-prone/issues/1257
      options.errorprone.errorproneArgs=['-Xep:Finally:OFF']
    }
}

version = '1.0'
sourceCompatibility = '1.8'
targetCompatibility = '1.8'

compileJava { options.encoding = "UTF-8" }
compileTestJava { options.encoding = "UTF-8" }


gradleLint.rules = [
        // Checks if Gradle wrapper is up-to-date
        'archaic-wrapper',
        // Checks for indirect dependencies with dynamic version spec. Best
        // practice calls for declaring them with specific versions.
        'undeclared-dependency',
        'unused-dependency'
        // TODO(weiminyu): enable more dependency checks
]