当任何标准错误时，Gradle构建失败

Question

如果任何任务或插件在标准错误输出上打印了任何内容，我如何将Gradle配置为在最后失败构建(而不是快速失败(？

我还没有在官方的API中找到一种方法。

Answer 1

下面是一个示例build.gradle，它展示了这是如何工作的：

// create a listener which collects stderr output:
def errMsgs = []
StandardOutputListener errListener = { errMsgs << it }
// add the listener to both the project *and* all tasks:
project.logging.addStandardErrorListener errListener
project.tasks.all { it.logging.addStandardErrorListener errListener }
// evaluate the collected stderr output at the end of the build:
gradle.buildFinished {
if (errMsgs) {
// (or fail in whatever other way makes sense for you)
throw new RuntimeException(errMsgs.toString())
}
}

// example showing that the project-level capturing of stderr logs works:
if (project.hasProperty('projErr'))
System.err.print('proj stderr msg')
// example showing that the task-level capturing of stderr logs works:
task foo {
doLast {
System.err.print('task stderr msg')
}
}
// example showing that stdout logs are not captured:
task bar {
doLast {
System.out.print('task stdout msg')
}
}

下半部分的例子只是为了表明它如预期的那样有效。尝试使用各种命令行参数/选项进行构建：

# doesn’t fail:
./gradlew bar
# fails due to project error:
./gradlew -PprojErr bar
# fails due to task error:
./gradlew foo
# fails due to both task and project error:
./gradlew -PprojErr foo