Gradle Dynamically Generate Tasks -

this first attempt using clojure , i'm attempting generate tasks in build.gradle file. i'm encountering complication errors such as:

* where:

build file '/users/austin/repositories/test/build.gradle' line: 47

* went wrong:

a problem occurred evaluating root project 'test'. cannot set value of read-only property 'src' task ':downloaddriverfirefox' of type de.undercouch.gradle.tasks.download.download.

i'm it's inexperience groovy language, use pointers i'm going wrong.

ext { // drivers want use drivers = ["firefox", "chrome"]  driverssrc = [:] driverssrc['firefox'] = 'https://github.com/mozilla/geckodriver/releases/download/v0.15.0/geckodriver-v0.15.0-macos.tar.gz' driverssrc['chrome'] = 'https://chromedriver.storage.googleapis.com/2.29/chromedriver_mac64.zip'  driverdest = new file("${builddir}/webdrivers") }  import org.gradle.api.tasks.* import de.undercouch.gradle.tasks.download.download  driverssrc.each { driver, path -> tasks.create(name: 'downloaddriver'+"${driver}", type: download) {     src = path     dest ext.driverdest     overwrite true } }  driverssrc.each {driver -> tasks.create(name: 'unzipdriver'+"${driver}", dependson: 'downloaddriver'+"${driver}", type: copy) {     ziptree(file('downloaddriver'+"${driver}").dest)     builddir/'webdrivers' } } 

things have done:

• cleaned map store data
• since using plugin: https://github.com/michel-kraemer/gradle-download-task, had make sure tasks used correctly
• since have tar, have use tartree ziptree

please try this:

buildscript {   repositories {     jcenter()   }    dependencies {     classpath "de.undercouch:gradle-download-task:3.2.0"   } }  allprojects {   repositories {     jcenter()   } } import de.undercouch.gradle.tasks.download.download  apply plugin: "de.undercouch.download"  ext {   driverssrc = [           "firefox": "https://github.com/mozilla/geckodriver/releases/download/v0.15.0/geckodriver-v0.15.0-macos.tar.gz",           "chrome" : "https://chromedriver.storage.googleapis.com/2.29/chromedriver_mac64.zip"   ]   driverdest = "${builddir}/webdrivers" }  driverssrc.each { driver, path ->   def filedest = new file(driverdest, new file(path).getname())    tasks.create(name: "downloaddriver${driver}", type: download) {     src path     dest filedest     overwrite true   }    tasks.create(name: "unzipdriver${driver}", dependson: "downloaddriver${driver}", type: copy) {     path.endswith("zip") ? ziptree(file(filedest)) : tartree(file(filedest))     driverdest   } } 

to run tasks:

./gradlew unzipdriverfirefox unzipdriverchrome*