Gradle动态生成任务

Question

这是我第一次尝试使用 Clojure，我正在尝试在我的build.gradle文件中生成一些任务。我遇到了复杂的错误，例如：

* Where:
  Build file '/Users/austin/Repositories/test/build.gradle' line: 47
* What went wrong:
  A problem occurred evaluating root project 'test'.
  Cannot set the value of read-only property 'src' for task ':downloadDriverfirefox' of type de.undercouch.gradle.tasks.download.Download.

我相当确定这只是我对常规语言缺乏经验，但我真的可以使用一些指示来指出我哪里出错了。

* Where:
  Build file '/Users/austin/Repositories/test/build.gradle' line: 47
* What went wrong:
  A problem occurred evaluating root project 'test'.
  Cannot set the value of read-only property 'src' for task ':downloadDriverfirefox' of type de.undercouch.gradle.tasks.download.Download.

Answer 1

我做过的事情：

• 清理地图以存储数据
• 由于您正在使用此插件：https://github.com/michel-kraemer/gradle-download-task，我必须确保正确使用任务
• 既然你有 tar，你就必须tarTree使用zipTree

请尝试这个：

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) {
    from path.endsWith("zip") ? zipTree(file(fileDest)) : tarTree(file(fileDest))
    into driverDest
  }
}

运行任务：

./gradlew unzipDriverfirefox unzipDriverchrome*