Before.kt

apply plugin: 'com.android.library'
apply plugin: 'kotlin-android'
apply plugin: 'maven-publish'
apply plugin: 'com.jfrog.artifactory'

def packageName = 'bluesquare-core'

android {
    compileSdkVersion 28


    defaultConfig {
        minSdkVersion 21
        targetSdkVersion 28
        versionCode getDate()
        versionName "$bluesquareVersion"

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    packagingOptions {
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/NOTICE.txt'
        exclude "META-INF/*kotlin*"

    }

}


dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])

    /* test */
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
    androidTestImplementation 'com.android.support.test:rules:1.0.2'


    /*
    kotlin
     */
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
    api "org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutines_version"
    api "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines_version"


    /*
    support
     */
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support:paperview-v7:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'

    /*
    bluesquare
     */
    implementation project(':processor')
    implementation project(':camera')
    implementation project(':utils')
    implementation project(':color')
    implementation project(':shapes')
    implementation project(':processor_preview')
    implementation project(':tilt')

    /*
    OS
     */
    api 'org.kodein.di:kodein-di-generic-jvm:5.2.0'

}

task sourceJar(type: Jar) {
    from android.sourceSets.main.java.srcDirs
    archiveClassifier.set('sources')
}

publishing {
    publications {
        aar(MavenPublication) {

            pom.withXml {
                def dependenciesNode = asNode().appendNode('dependencies')

                /* APPEND ALL API DEPENDENCIES */
                configurations.api.allDependencies.each {
                    if (!it.group.startsWith("bluesquare")) {
                        def dependencyNode = dependenciesNode.appendNode('dependency')
                        dependencyNode.appendNode('groupId', it.group)
                        dependencyNode.appendNode('artifactId', it.name)
                        dependencyNode.appendNode('version', it.version)
                    }
                }

                /* APPEND processor AS DEPENDENCY */
                def processorNode = dependenciesNode.appendNode('dependency')
                processorNode.appendNode('groupId', "com.quickbirdstudios")
                processorNode.appendNode('artifactId', "bluesquare-processor")
                processorNode.appendNode('version', bluesquareVersion)

                /* APPEND CAMERA AS DEPENDENCY */
                def cameraNode = dependenciesNode.appendNode('dependency')
                cameraNode.appendNode('groupId', "com.quickbirdstudios")
                cameraNode.appendNode('artifactId', "bluesquare-camera")
                cameraNode.appendNode('version', bluesquareVersion)

                /* APPEND UTILS AS DEPENDENCY */
                def utilsNode = dependenciesNode.appendNode('dependency')
                utilsNode.appendNode('groupId', "com.quickbirdstudios")
                utilsNode.appendNode('artifactId', "bluesquare-utils")
                utilsNode.appendNode('version', bluesquareVersion)

                /* APPEND COLOR AS DEPENDENCY */
                def colorNode = dependenciesNode.appendNode('dependency')
                colorNode.appendNode('groupId', "com.quickbirdstudios")
                colorNode.appendNode('artifactId', "bluesquare-color")
                colorNode.appendNode('version', bluesquareVersion)

                /* APPEND PAPER AS DEPENDENCY */
                def paperNode = dependenciesNode.appendNode('dependency')
                paperNode.appendNode('groupId', "com.quickbirdstudios")
                paperNode.appendNode('artifactId', "bluesquare-paper")
                paperNode.appendNode('version', bluesquareVersion)

                /* APPEND SHAPES AS DEPENDENCY */
                def shapesNode = dependenciesNode.appendNode('dependency')
                shapesNode.appendNode('groupId', "com.quickbirdstudios")
                shapesNode.appendNode('artifactId', "bluesquare-shapes")
                shapesNode.appendNode('version', bluesquareVersion)

                /* APPEND processor PREVIEW AS DEPENDENCY */
                def processorPreviewNode = dependenciesNode.appendNode('dependency')
                processorPreviewNode.appendNode('groupId', "com.quickbirdstudios")
                processorPreviewNode.appendNode('artifactId', "bluesquare-processor-preview")
                processorPreviewNode.appendNode('version', bluesquareVersion)

                /* APPEND ORIENTATION AS DEPENDENCY */
                def orientationNode = dependenciesNode.appendNode('dependency')
                orientationNode.appendNode('groupId', "com.quickbirdstudios")
                orientationNode.appendNode('artifactId', "bluesquare-tilt")
                orientationNode.appendNode('version', bluesquareVersion)
            }

            // ##############################################################

            groupId "com.quickbirdstudios"
            version = "$bluesquareVersion"
            artifactId packageName

            artifact("$buildDir/outputs/aar/core-release.aar")
            artifact sourceJar
        }
    }
}


if (!project.hasProperty("artifactory_username")) {
    ext.artifactory_username = ""
}

if (!project.hasProperty("artifactory_password")) {
    ext.artifactory_password = ""
}

artifactory {
    contextUrl = '***'
    publish {

        repository {
            repoKey = 'quickbirdstudios'
            username = artifactory_username
            password = artifactory_password
        }

        defaults {
            publications('aar')
            publishArtifacts = true

            // Properties to be attached to the published artifacts.
            properties = ['qa.level': 'basic', 'dev.team': 'core']
            publishPom = true
        }
    }
}

repositories {
    mavenCentral()
}

Only 200 lines? Call me back when you get over 600.
:)

find the 34 lines successor version that is created using "buildSrc" plugin here:
https://quickbirdstudios.com/blog/gradle-kotlin-buildsrc-plugin-android/

Lol