Gradle，commandLine'cmd'，'/ c'，'echo doLast！'什么也没做 [英] Gradle, commandLine 'cmd', '/c', 'echo doLast!' does nothing

问题描述

我正在阅读有关 Gradle Exec

a>并创建以下 build.gradle ：

 任务startTomcat类型：Exec）{
 commandLine'cmd'，'/ c'，'echo init startTomcat'
} 
 
任务stopTomcat（类型：Exec）{
 
 //在windows上：
 commandLine'cmd'，'/ c'，'echo init stopTomcat！'
 doLast {
 commandLine'cmd'，'/ c'，'echo当我运行 gradlew stopTomcat ，输出如下所示： 
 
 
 孵化功能。 
：stopTomcat 
 init stopTomcat！ 
  
我没有看到 doLast stopTomcat！为什么我不能在 doLast ？中执行命令？
解决方案
你的任务是Exec类型。  commandLine 方法调用通过传递 cmd ， / c 和 echo init stopTomcat！。这发生在配置阶段。
 
 
 
然后任务在执行阶段运行并打印： 
 
 
  init stopTomcat！ 
  
然后 doLast 块启动并配置任务，传递 cmd ， / c 和 echo doLast stopTomcat！到它。这个配置在taks已经运行时没有效果。
 
 
 
要获得第二个打印输出，您可以执行：
 
 < pre $ 任务stopTomcat（类型：Exec）{
 
 //在窗口上：
 commandLine'cmd'，'/ c'，'echo init stopTomcat ！'
 doLast {
 exec {
 commandLine'cmd'，'/ c'，'echo doLast stopTomcat！'
} 
} 
} 
  

这是如何调用exec任务的另一种方式。




I'm reading about Gradle Exec and created the following build.gradle:

task startTomcat(type:Exec) {
    commandLine 'cmd', '/c', 'echo init startTomcat'
} 

task stopTomcat(type:Exec) {

    // on windows:
    commandLine 'cmd', '/c', 'echo init stopTomcat!'
    doLast {
        commandLine 'cmd', '/c', 'echo doLast stopTomcat!'
    }
}

When I run gradlew stopTomcat, the output looks like this:

Parallel execution with configuration on demand is an incubating feature.
:stopTomcat
init stopTomcat!

I don't see the line doLast stopTomcat! Why can't I execute a command in doLast?

解决方案

Your task is of type Exec. The commandLine method call configures the task by passing the cmd, /c and echo init stopTomcat! to it. This happens in the config phase.

Then the task runs in execution phase and prints:

init stopTomcat!

Then the doLast blocks starts and configures the task, passing cmd, /c and echo doLast stopTomcat! to it. This configuration has no effect as the taks already ran.

To get the second print out, you could do:

task stopTomcat(type:Exec) {

    // on windows:
    commandLine 'cmd', '/c', 'echo init stopTomcat!'
    doLast {
        exec {
            commandLine 'cmd', '/c', 'echo doLast stopTomcat!'
        }
    }
}

This is another way how to invoke the exec task.

这篇关于Gradle，commandLine'cmd'，'/ c'，'echo doLast！'什么也没做的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！