[英]how to fix a slow gradle clean build
为这个问题的开放性道歉,但我有一个 java/spring-boot/gradle 项目,每当我运行./gradlew clean build
时,构建总是需要很长时间(大约 10 分钟,而其他团队大约 1 分钟)成员在他们的笔记本电脑上构建相同的项目) - 我不知道为什么会这样,所以任何人都知道从哪里开始/我需要提取/分析什么信息来找到这个问题的原因(很高兴发布任何请求的信息作为对问题的编辑)。
首先,在您的 gradle-wrapper.properties 中,添加以下内容:
org.gradle.caching=true
org.gradle.parallel=true
看看它是否有帮助。 它应该。
其次,您可能想要实现一个TaskExecutionListener并将其注册到gradle.taskGraph.addTaskExecutionListener
。 建议来自Peter Niederwieser
本人。
简而言之,在您的顶级gradle.build
中,复制以下内容:
import java.util.concurrent.TimeUnit
class TimingsListener implements TaskExecutionListener, BuildListener {
private long startTime
private timings = []
@Override
void beforeExecute(Task task) {
startTime = System.nanoTime()
}
@Override
void afterExecute(Task task, TaskState taskState) {
def ms = TimeUnit.MILLISECONDS.convert(System.nanoTime() - startTime, TimeUnit.NANOSECONDS);
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()
output 可能看起来像:
gradlew build
> Task :compileJava UP-TO-DATE
:compileJava took 3255ms
> Task :processResources UP-TO-DATE
:processResources took 10ms
> Task :classes UP-TO-DATE
:classes took 0ms
> Task :bootWar UP-TO-DATE
:bootWar took 637ms
> Task :war SKIPPED
:war took 0ms
> Task :assemble UP-TO-DATE
:assemble took 0ms
> Task :compileTestJava UP-TO-DATE
:compileTestJava took 427ms
> Task :processTestResources UP-TO-DATE
:processTestResources took 5ms
> Task :testClasses UP-TO-DATE
:testClasses took 0ms
> Task :test UP-TO-DATE
:test took 62ms
> Task :check UP-TO-DATE
:check took 0ms
> Task :build UP-TO-DATE
:build took 0ms
Task timings:
3255ms :compileJava
637ms :bootWar
427ms :compileTestJava
62ms :test
您还可以通过在 build.gradle 中使用它来加快测试速度:
test {
maxParallelForks = Runtime.runtime.availableProcessors().intdiv(2) ?: 1
}
请注意,如果您确实并行运行测试,则必须确保它们是独立的,即不共享资源,无论是文件、数据库还是其他东西。 否则,测试可能会以随机和不可预测的方式相互干扰。
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