Rewrote gradle configuration to kotlin script

app/build.gradle.kts

@@ -1,41 +1,49 @@
-apply plugin: 'com.android.application'
-apply plugin: 'kotlin-android'
-apply plugin: 'kotlin-android-extensions'
+import org.jetbrains.kotlin.gradle.internal.AndroidExtensionsExtension
+
+plugins {
+    id("com.android.application")
+    id("kotlin-android")
+    id("kotlin-android-extensions")
+}
 
 androidExtensions {
-    experimental = true
+    // fixme: https://youtrack.jetbrains.com/issue/KT-22213
+    configure(delegateClosureOf<AndroidExtensionsExtension> {
+        isExperimental = true
+    })
 }
 
 android {
-    compileSdkVersion 28
-    buildToolsVersion '28.0.3'
+    compileSdkVersion(28)
+    buildToolsVersion("28.0.3")
     defaultConfig {
-        applicationId 'com.sirekanyan.knigopis'
-        minSdkVersion 16
-        targetSdkVersion 28
-        versionCode 23
-        versionName '0.2.1'
-        archivesBaseName = "$applicationId-$versionName-$versionCode"
+        applicationId = "com.sirekanyan.knigopis"
+        minSdkVersion(16)
+        targetSdkVersion(28)
+        versionCode = 23
+        versionName = "0.2.1"
+        setProperty("archivesBaseName", "$applicationId-$versionName-$versionCode")
         vectorDrawables.useSupportLibrary = true
     }
     buildTypes {
-        release {
-            minifyEnabled true
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard'
+        getByName("release") {
+            isMinifyEnabled = true
+            proguardFiles(getDefaultProguardFile("proguard-android.txt"), "proguard")
         }
-        debug {
-            applicationIdSuffix '.debug'
+        getByName("debug") {
+            applicationIdSuffix = ".debug"
         }
     }
-    afterEvaluate {
-        assembleRelease.doLast {
-            applicationVariants.find { it.name == 'release' }.outputs.each { output ->
-                if (output.outputFile.exists()) {
-                    def apkSize = (output.outputFile.size().toFloat() / 1024 / 1024).round(2)
-                    rootProject.file('README.md').text = rootProject.file('readme.md').text
-                            .replaceAll('::versionName::', output.apkData.versionName.toString())
-                            .replaceAll('::versionCode::', output.apkData.versionCode.toString())
-                            .replaceAll('::apkSize::', apkSize.toString())
+    task("updateReadme") {
+        dependsOn("assembleRelease")
+        doLast {
+            val releaseVariant = applicationVariants.first { it.name == "release" }
+            val releaseFiles = releaseVariant.outputs.map { it.outputFile }
+            val apkFile = releaseFiles.single { it.exists() && it.extension == "apk" }
+            val apkSize = "%.2f".format(apkFile.length().toFloat() / 1024 / 1024)
+            rootProject.file("README.md").printWriter().use { readme ->
+                rootProject.file("readme.md").forEachLine { line ->
+                    readme.appendln(line.replace("{{apkSize}}", apkSize))
                 }
             }
         }
@@ -44,31 +52,27 @@ android {
 
 dependencies {
     // kotlin standard library
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.2.71")
 
     // support libraries
-    implementation 'com.android.support:appcompat-v7:28.0.0'
-    implementation 'com.android.support:design:28.0.0'
-    implementation 'com.android.support:support-vector-drawable:28.0.0'
-    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    implementation("com.android.support:appcompat-v7:28.0.0")
+    implementation("com.android.support:design:28.0.0")
+    implementation("com.android.support:support-vector-drawable:28.0.0")
+    implementation("com.android.support.constraint:constraint-layout:1.1.3")
 
     // rxjava
-    implementation 'io.reactivex.rxjava2:rxjava:2.1.11'
-    implementation 'io.reactivex.rxjava2:rxkotlin:2.2.0'
-    implementation 'io.reactivex.rxjava2:rxandroid:2.0.2'
-    implementation 'com.tbruyelle.rxpermissions2:rxpermissions:0.9.4@aar'
+    implementation("io.reactivex.rxjava2:rxjava:2.1.11")
+    implementation("io.reactivex.rxjava2:rxkotlin:2.2.0")
+    implementation("io.reactivex.rxjava2:rxandroid:2.0.2")
+    implementation("com.tbruyelle.rxpermissions2:rxpermissions:0.9.4@aar")
 
     // retrofit & okhttp
-    implementation 'com.squareup.retrofit2:retrofit:2.3.0'
-    implementation 'com.squareup.retrofit2:adapter-rxjava2:2.3.0'
-    implementation 'com.squareup.retrofit2:converter-gson:2.3.0'
-    implementation 'com.squareup.okhttp3:logging-interceptor:3.9.1'
+    implementation("com.squareup.retrofit2:retrofit:2.3.0")
+    implementation("com.squareup.retrofit2:adapter-rxjava2:2.3.0")
+    implementation("com.squareup.retrofit2:converter-gson:2.3.0")
+    implementation("com.squareup.okhttp3:logging-interceptor:3.9.1")
 
     // etc
-    implementation 'com.github.bumptech.glide:glide:4.7.1'
-    implementation(name: 'ulogin-sdk-v1.1', ext: 'aar')
+    implementation("com.github.bumptech.glide:glide:4.7.1")
+    implementation(files("libs/ulogin-sdk-v1.1.aar"))
 }
-
-clean {
-    delete 'release'
-}

build.gradle.kts

@@ -1,14 +1,11 @@
 buildscript {
-    ext {
-        kotlin_version = '1.2.71'
-    }
     repositories {
         jcenter()
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.2.1'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath("com.android.tools.build:gradle:3.2.1")
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.2.71")
     }
 }
 
@@ -18,11 +15,11 @@ allprojects {
         mavenCentral()
         google()
         flatDir {
-            dirs 'libs'
+            dirs("libs")
         }
     }
 }
 
-task clean(type: Delete) {
-    delete rootProject.buildDir
+tasks.register("clean", Delete::class) {
+    delete(rootProject.buildDir)
 }

readme.md

@@ -2,6 +2,6 @@
 Android app for http://knigopis.com
 
 [![Build Status](https://travis-ci.org/sirekanyan/knigopis.svg?branch=master)](https://travis-ci.org/sirekanyan/knigopis)
-[![APK Size](https://img.shields.io/badge/apk%20size-::apkSize::%20MB-brightgreen.svg)](https://travis-ci.org/sirekanyan/knigopis)
+[![APK Size](https://img.shields.io/badge/apk%20size-{{apkSize}}%20MB-brightgreen.svg)](https://travis-ci.org/sirekanyan/knigopis)
 
 <a href='https://play.google.com/store/apps/details?id=com.sirekanyan.knigopis'><img alt='Get it on Google Play' src='https://play.google.com/intl/en_us/badges/images/generic/en_badge_web_generic.png'/></a>

settings.gradle.kts

@@ -1 +1 @@
-include ':app'
+include(":app")