汇总--如何计算Gradle脚本中每个task的执行时间

来源于：http://stackoverflow.com/questions/13031538/track-execution-time-per-task-in-gradle-script

https://gist.github.com/nikos/3939407

https://github.com/Scuilion/gradle-utils/blob/master/src/main/groovy/com/scuilion/gradle/plugins/utils/debug/TestTiming.groovy

一）使用--profile参数

如：gradlew AssembleDebug --profile，会在build/reports/profile生出相应的时间统计数据，如下图：

二)编写脚本，实现TaskExecutionListener 接口并使用gradle.taskGraph.addTaskExecutionListener 注册。

如：

// Log timings per task. class TimingsListener implements TaskExecutionListener, BuildListener { private Clock clock private timings = [] @Override void beforeExecute(Task task) { clock = new org.gradle.util.Clock() } @Override void afterExecute(Task task, TaskState taskState) { def ms = clock.timeInMs timings.add([ms, task.path]) task.project.logger.warn "${task.path} took ${ms}ms" } @Override void buildFinished(BuildResult result) { println "Task timings:" for (timing in timings) { if (timing[0] >= 50) { printf "%7sms %s\n", timing } } } @Override void buildStarted(Gradle gradle) {} @Override void projectsEvaluated(Gradle gradle) {} @Override void projectsLoaded(Gradle gradle) {} @Override void settingsEvaluated(Settings settings) {} } gradle.addListener new TimingsListener()

关于TaskExecutionListener,见：https://docs.gradle.org/current/javadoc/org/gradle/api/execution/TaskExecutionListener.html

三）只计算某些任务的时间

有选择的注册TaskExecutionListener 接口，如：

TestTiming.groovy：

	package com.scuilion.gradle.plugins.utils.debug
	import com.scuilion.gradle.plugins.utils.UtilsProperties
	import org.gradle.api.Project
	class TestTiming {
	static void addTask(Projectproject) {
	project.task('testTiming') {
	}
	if (project.hasProperty('timeTests')) {
	project.rootProject.gradle.addListener new TestTimingListener()
	}
	project.tasks.testTiming.group= UtilsProperties.GROUP
	project.tasks.testTiming.description= "Add property 'timeTests' to get test runtime."
	}
	}

四）使用已有插件：

https://github.com/passy/build-time-tracker-plugin