Fixing JitPack build issues

build.gradle

@@ -1,24 +1,18 @@
 buildscript {
     repositories {
         google()
-        maven {
-            url "https://plugins.gradle.org/m2/"
-        }
+        maven { url "https://plugins.gradle.org/m2/" }
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:7.0.0'
-        classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.4'
-        classpath 'com.github.dcendents:android-maven-gradle-plugin:2.1'
         classpath 'com.dicedmelon.gradle:jacoco-android:0.1.5'
     }
 }
 
 allprojects {
     repositories {
         google()
-        maven {
-            url "https://plugins.gradle.org/m2/"
-        }
+        maven { url "https://plugins.gradle.org/m2/" }
     }
     ext {
         globalMinSdkVersion = 14

jitpack.yml

@@ -0,0 +1,2 @@
+jdk:
+  - openjdk11

tracker/build.gradle

@@ -1,8 +1,9 @@
 apply plugin: 'com.android.library'
+apply plugin: 'maven-publish'
 
 def versionMajor = 4
 def versionMinor = 1
-def versionPatch = 2
+def versionPatch = 4
 def myVersionCode = versionMajor * 10000 + versionMinor * 100 + versionPatch
 def myVersionName = "${versionMajor}.${versionMinor}.${versionPatch}"
 
@@ -14,6 +15,13 @@ android {
         targetSdkVersion project.ext.globalTargetSdkVersion
     }
 
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+
     testOptions.unitTests.includeAndroidResources = true
 }
 
@@ -37,23 +45,6 @@ dependencies {
     testImplementation 'org.robolectric:robolectric:4.3.1'
 }
 
-/**
- * JAR
- */
-task clearJar(type: Delete) {
-    delete fileTree(dir: "jar", exclude: "dont_delete.txt")
-}
-
-task makeJar(type: Copy) {
-    from('build/intermediates/bundles/release/')
-    into('jar/')
-    include('classes.jar')
-    def fileName = 'MatomoAndroidSdk-' + 'git rev-parse --short HEAD'.execute().text.trim() + '.jar'
-    rename('classes.jar', fileName)
-}
-
-makeJar.dependsOn(clearJar, build)
-
 /**
  * Coverage
  */
@@ -91,37 +82,29 @@ android.libraryVariants.all { variant ->
     }
 }
 
-def credentialsFile = new File(System.properties['user.home'], ".bintray/bintray.properties")
-ext {
-    if (credentialsFile.canRead()) {
-        Properties props = new Properties()
-        props.load(new FileInputStream(credentialsFile))
-        bintrayUser = props['bintray.user']
-        bintrayApiKey = props['bintray.apikey']
+afterEvaluate {
+    publishing {
+        publications {
+            release(MavenPublication) {
+                from components.release
+
+                groupId = 'org.matomo.sdk'
+                artifactId = 'tracker'
+                version = myVersionName
+
+                pom {
+                    name = 'Matomo SDK for Android'
+                    description = 'SDK for Android to measure your apps with Matomo'
+                    url = 'https://github.com/matomo-org/matomo-sdk-android'
+
+                    licenses {
+                        license {
+                            name = 'BSD-3 Clause'
+                            url = 'https://github.com/matomo-org/matomo-sdk-android/blob/master/LICENSE'
+                        }
+                    }
+                }
+            }
+        }
     }
-
-    bintrayRepo = 'maven'
-    bintrayName = 'matomo-sdk-android'
-
-    publishedGroupId = 'org.matomo.sdk'
-    libraryName = 'Matomo SDK for Android'
-    artifact = 'tracker'
-
-    libraryDescription = 'SDK for Android to measure your apps with Matomo'
-
-    siteUrl = 'https://github.com/matomo-org/matomo-sdk-android'
-    gitUrl = 'https://github.com/matomo-org/matomo-sdk-android.git'
-
-    libraryVersion = myVersionName
-
-    developerId = 'darken'
-    developerName = 'Matthias Urhahn'
-    developerEmail = 'darken@darken.eu'
-
-    licenseName = 'BSD-3 Clause'
-    licenseUrl = 'https://github.com/matomo-org/matomo-sdk-android/blob/master/LICENSE'
-    allLicenses = ["BSD 3-Clause"]
-}
-if (credentialsFile.canRead()) {
-    apply from: '../publish-to-bintray.gradle'
-}
+}