Gradle 在信息级别的HelloTask的任务操作的开始和结束处添加日志记录语句

Gradle 6.6.1

任务：

在信息级别的HelloTask任务操作的开始和结束处添加日志记录语句

我的解决方案：

task doBefore(type: DoBefore)

task hello(type: HelloTask)


class DoBefore extends DefaultTask {
    @TaskAction
    void doBefore() {
        logger.info('Before.')
    }
}


class HelloTask extends DefaultTask {
    doBefore = DoBefore()

    @TaskAction
    void doAction() {
    dependsOn doBefore
        println 'Hello World'
    }
}

不工作：

$ gradle hello

FAILURE: Build failed with an exception.

* Where:
Build file '/home/michael/Documents/GradleUdacity/ud867-master/1.17-Exercise-InvestigateLogging/build.gradle' line: 57

* What went wrong:
Could not compile build file '/home/michael/Documents/GradleUdacity/ud867-master/1.17-Exercise-InvestigateLogging/build.gradle'.
> startup failed:
  build file '/home/michael/Documents/GradleUdacity/ud867-master/1.17-Exercise-InvestigateLogging/build.gradle': 57: unexpected token: doBefore @ line 57, column 5.
         doBefore = DoBefore()
         ^
  
  1 error


* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

---

我想，我什么都做错了。这不一定与错误有关。但我想，我还没有领会这项任务的意思。

这是某种课程的结果吗？您是否已经了解了

doFirst

和

doLast

？

$ gradle hello

FAILURE: Build failed with an exception.

* Where:
Build file '/home/michael/Documents/GradleUdacity/ud867-master/1.17-Exercise-InvestigateLogging/build.gradle' line: 57

* What went wrong:
Could not compile build file '/home/michael/Documents/GradleUdacity/ud867-master/1.17-Exercise-InvestigateLogging/build.gradle'.
> startup failed:
  build file '/home/michael/Documents/GradleUdacity/ud867-master/1.17-Exercise-InvestigateLogging/build.gradle': 57: unexpected token: doBefore @ line 57, column 5.
         doBefore = DoBefore()
         ^
  
  1 error


* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org