olm/android/olm-sdk/build.gradle

import org.apache.tools.ant.taskdefs.condition.Os

apply plugin: 'com.android.library'

android {
    compileSdkVersion 27
    buildToolsVersion '27.0.3'

    defaultConfig {
        minSdkVersion 11
        targetSdkVersion 21
        versionCode 310
        versionName "3.1.0"
        version "3.1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        debug {
            resValue "string", "git_olm_revision", "\"${gitRevision()}\""
            resValue "string", "git_olm_revision_unix_date", "\"${gitRevisionUnixDate()}\""
            resValue "string", "git_olm_revision_date", "\"${gitRevisionDate()}\""
        }

        release {
            resValue "string", "git_olm_revision", "\"${gitRevision()}\""
            resValue "string", "git_olm_revision_unix_date", "\"${gitRevisionUnixDate()}\""
            resValue "string", "git_olm_revision_date", "\"${gitRevisionDate()}\""

            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    sourceSets.main {
        jniLibs.srcDir 'src/main/libs'
        jni.srcDirs = []
    }

   task buildJavaDoc(type: Javadoc) {
        source = android.sourceSets.main.java.srcDirs
        classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
        destinationDir = file("./doc/")
        options.memberLevel = org.gradle.external.javadoc.JavadocMemberLevel.PRIVATE
        failOnError false
    }

    task ndkBuildNativeRelease(type: Exec, description: 'NDK building..') {
        println 'ndkBuildNativeRelease starts..'
        workingDir file('src/main')
        commandLine getNdkBuildCmd(), 'NDK_DEBUG=0'
    }

    task ndkBuildNativeDebug(type: Exec, description: 'NDK building..') {
        println 'ndkBuildNativeDebug starts..'
        workingDir file('src/main')
        commandLine getNdkBuildCmd(), 'NDK_DEBUG=1'
    }

    task cleanNative(type: Exec, description: 'Clean NDK build') {
        workingDir file('src/main')
        commandLine getNdkBuildCmd(), 'clean'
    }

    tasks.withType(JavaCompile) {
        compileTask -> if (compileTask.name.startsWith('compileDebugJava')) {
            println 'test compile: Debug'
            compileTask.dependsOn ndkBuildNativeDebug
        } else if (compileTask.name.startsWith('compileReleaseJava')) {
            println 'test compile: Release'
            compileTask.dependsOn ndkBuildNativeRelease
        }
        compileTask.dependsOn buildJavaDoc
    }

    clean.dependsOn cleanNative


    libraryVariants.all { variant ->
        variant.outputs.each { output ->
            def outputFile = output.outputFileName
            if (outputFile != null && outputFile.endsWith('.aar')) {
                output.outputFileName = outputFile.replace(".aar", "-${version}.aar")
            }
        }
    }
}

def getNdkFolder() {
    Properties properties = new Properties()
    properties.load(project.rootProject.file('local.properties').newDataInputStream())
    def ndkFolder = properties.getProperty('ndk.dir', null)
    if (ndkFolder == null)
        throw new GradleException("NDK location missing. Define it with ndk.dir in the local.properties file")

    return ndkFolder
}

def getNdkBuildCmd() {
    def ndkBuildCmd = getNdkFolder() + "/ndk-build"
    if (Os.isFamily(Os.FAMILY_WINDOWS))
        ndkBuildCmd += ".cmd"

    return ndkBuildCmd
}

def gitRevision() {
    def cmd = "git rev-parse --short HEAD"
    return cmd.execute().text.trim()
}

def gitRevisionUnixDate() {
    def cmd = "git show -s --format=%ct HEAD^{commit}"
    return cmd.execute().text.trim()
}

def gitRevisionDate() {
    def cmd = "git show -s --format=%ci HEAD^{commit}"
    return cmd.execute().text.trim()
}

dependencies {
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support:support-annotations:27.1.1'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test:rules:1.0.2'
}