在 doFirst 中的命令行之后跳过 Gradle 任务执行

Question

这是 Windows 上的构建过程。 我有 gradle 任务（类型：Exec），它使用其 doFirst 闭包临时从外部目录复制文件，这是其构建过程所必需的：

task(myTask, type: Exec) {
    [...]
    < do own stuff >
    [...]

    doFirst {
        println "Copy file"
        if (System.properties['os.name'].toLowerCase().contains('windows')) {
            commandLine 'cmd', '/c', "copy .\\<myFile> .\\..\\.."
        }
    }
}

由于某种原因，使用 doFirst 中的 commandLine 来执行复制命令，会使整个任务终止并阻止执行任务的主要目的。

使用开关--debug 我查看了调试输出，发现复制命令使状态变为成功：

[DEBUG] [org.gradle.process.internal.DefaultExecHandle] Changing state to: STARTING
[DEBUG] [org.gradle.process.internal.DefaultExecHandle] Waiting until process started: command 'cmd'.
[DEBUG] [org.gradle.process.internal.DefaultExecHandle] Changing state to: STARTED
[DEBUG] [org.gradle.process.internal.ExecHandleRunner] waiting until streams are handled...
[INFO] [org.gradle.process.internal.DefaultExecHandle] Successfully started process 'command 'cmd''
[QUIET] [system.out]         1 file(s) copied.
[DEBUG] [org.gradle.process.internal.DefaultExecHandle] Changing state to: SUCCEEDED
[DEBUG] [org.gradle.process.internal.DefaultExecHandle] Process 'command 'cmd'' finished with exit value 0 (state: SUCCEEDED)
[DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter] Finished executing task 'myTask'

如何防止 doFirst 中的“命令行”阻止任务进一步执行？

Answer 1

doFirst 闭包中的commandLine 只使用普通的旧copy 块：

task(myTask, type: Exec) {
    [...]
    < do own stuff >
    [...]

    doFirst {
        println "Copy file"
        copy {
           from "some file"
           into "some path"
        }
    }
}