Question

我认为这样可行，但事情必定已经改变（或者我有某种错误）

What is the syntax for a gradle subproject task depending on a parent project's task?

我在根级别有以下任务（即在子项目闭包之外和allprojects闭包之外）。

task deleteJavaCache {
    doLast {
        System.out.println("DELETE java caches here to prevent intermitten build failures from java deleting files")
    }
}

test.dependsOn rootProject.deleteJavaCache
test{
   beforeTest{ descr ->
    logger.warn("Starting Test ${descr.className} : ${descr.name}")
   }
...

我得到的错误是

A problem occurred evaluating root project 'webpieces'.
> Could not get unknown property 'deleteJavaCache' for root project 
'webpieces' of type org.gradle.api.Project.

然后我猜到了一些事情，包括这个

test.dependsOn rootProject.task('deleteJavaCache')

但这给了我错误

* What went wrong:
A problem occurred evaluating root project 'webpieces'.
> Cannot add task ':deleteJavaCache' as a task with that name already exists.

版本信息因此

------------------------------------------------------------
Gradle 4.1-milestone-1
------------------------------------------------------------
Build time:   2017-06-20 17:05:46 UTC
Revision:     3ad5af92d482b963cc6b00fb5ad53b608606d657

Groovy:       2.4.11
Ant:          Apache Ant(TM) version 1.9.6 compiled on June 29 2015
JVM:          1.8.0_111 (Oracle Corporation 25.111-b14)
OS:           Mac OS X 10.11.6 x86_64

Answer 1

仔细检查您的settings.gradle以及子项目是否为include

如果我理解的话，就是这样：

root (deleteJavaCache)
  |- subprojects (test.dependsOn deleteJavaCache from the root)

试试这个：

test.dependsOn (":deleteJavaCache")

或者如果您希望所有子项目test任务之前运行它：

//in root build.gradle
subprojects {
    test.dependsOn (":deleteJavaCache")
}

因为我认为您正在尝试自定义子项目test任务以使其依赖于根项目的任务？

因为你说的有点混乱：

我在根级别有以下任务

这意味着整个代码块都在根项目中，包括deleteJavaCache和test任务。如果是，请尝试以下解决方案，如果没有，上面的解决方案请澄清问题。

test.dependsOn deleteJavaCache

请参加所有gradle子项目＆＃39; test＆＃39;任务取决于rootproject＆＃39; setup＆＃39;任务

1 个答案: