java - Gradle - 使用以闭包作为参数的插件方法的语法错误

Question

下面是 build.gradle 中的两个任务 hello 和 printProperties:

task('hello', {
            description("Hey student! Run this one :D")
            group("Our demo")
            doLast({println("Hello World!")})
            }
     )

plugins({
    id('java')
})

ext({
    springVersion = "3.1.0.RELEASE"
    emailNotification = "build@master.org"
})

sourceSets.all({ ext.purpose = null })

sourceSets({
    main({
        purpose = "production"
    })
    test({
        purpose = "test"
    })
    plugin({
        purpose = "production"
    })
})

task('printProperties', {
    doLast({
        println(springVersion)
        println(emailNotification)
        sourceSets.matching({ it.purpose == "production" }.each({ println it.name }))
    })
})

<小时/>

给出错误:

> startup failed:
  build file '/../../build.gradle': 8:
only buildscript {} and other plugins {} script blocks are allowed before plugins {} blocks, no other statements are allowed

<小时/>

为什么plugins({id('java')})给出groovy脚本语法错误？

Answer 1

答案在这里:https://stackoverflow.com/a/48611069/1250435

Whenever you write a build.gradle script and use the new plugins script block, you need to put it as first block in the file. The only exceptions from this rule are other plugins blocks or the special buildScript block, which always must go first.