build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
apply from: 'dependencies.gradle'

buildscript {
    // Gradle will not find vars defined in an external file when referring to them
    // in the buildscript block, unless you link it from the buildscript block, too.
    apply from: 'dependencies.gradle'

    repositories {
        jcenter()
        maven { url 'https://plugins.gradle.org/m2/' }
    }
    dependencies {
        // See dependencies.gradle for declaration of plugins.

        classpath gradlePlugins.android

        // Compile-time annotation processing.
        classpath gradlePlugins.apt

        // Backport of some Java 8 language features such as Lambdas and method references.
        classpath gradlePlugins.retrolambda

        // Needed for Lint + Retrolambda.
        classpath gradlePlugins.lombok

        // Code coverage.
        classpath gradlePlugins.jacoco

        // Performance metrics library for Android development.
        classpath gradlePlugins.androidDevMetrics

        // Catches common Java mistakes as compile-time errors.
        classpath gradlePlugins.errorProne

        // Method count plugin for android projects
        classpath gradlePlugins.dexcount

        // Check latest version of dependencies, task: dependencyUpdates
        classpath gradlePlugins.versions
    }

    // Part of workaround for Lint + Retrolambda.
    configurations.classpath.exclude group: 'com.android.tools.external.lombok'
}

allprojects {
    repositories {
        jcenter()
    }

    // Workaround to prevent Gradle from stealing focus from other apps during tests run/etc.
    // https://gist.github.com/artem-zinnatullin/4c250e04636e25797165
    tasks.withType(JavaForkOptions) {
        jvmArgs '-Djava.awt.headless=true'
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

ext.preDexLibs = !project.hasProperty('disablePreDex')
subprojects {
    project.plugins.whenPluginAdded { plugin ->
        if ('com.android.build.gradle.AppPlugin'.equals(plugin.class.name) || 'com.android.build.gradle.LibraryPlugin'.equals(plugin.class.name)) {
            // enable or disable pre-dexing
            project.android.dexOptions.preDexLibraries = rootProject.ext.preDexLibs
        }
    }

    project.plugins.apply('net.ltgt.errorprone')

    configurations.errorprone {
        resolutionStrategy.force "com.google.errorprone:error_prone_core:${versions.errorProneCoreVersion}"
    }

    afterEvaluate {
        tasks.findByName('pmd').dependsOn('assemble')
        tasks.findByName('findbugs').dependsOn('assemble')

        def checkTask = tasks.findByName('check')

        checkTask.dependsOn('pmd')
        checkTask.dependsOn('findbugs')
        checkTask.dependsOn('checkstyle')

        dependencyUpdates.outputDir = new File("${projectDir}/build/reports/versions")

        // Log instrumentation tests results.
        tasks.withType(com.android.build.gradle.internal.tasks.AndroidTestTask) { task ->
            task.doFirst {
                logging.level = LogLevel.INFO
            }
            task.doLast {
                logging.level = LogLevel.LIFECYCLE
            }
        }
    }
}