java - Jenkins 管道和 java.nio.file.* 方法的问题

Question

我正在尝试使用 java.nio.file.* 中的方法在 Jenkins 管道中执行一些基本文件操作。无论代码存在于哪个节点 block ，代码都在主节点上执行。在管道中，我已经验证了各种节点 block 是正确的——它们唯一地标识特定节点。但是，pathExists(以及其他移动、复制或删除文件的代码)始终在主节点上执行。知道发生了什么或如何解决它吗？

import java.nio.file.*

String slavePath = 'C:\\Something\\only\\on\\slave\\node'
String masterPath = 'D:\\Something\\only\\on\\master\\node'

def pathExists (String pathName)
{
    def myPath = new File(pathName)
    return (myPath.exists()) 
}

stage('One') 
{
    node ('slave')
    {
        bat returnStatus: true, script: 'set'
        println (pathExists(slavePath))     // Should be true but is false.
        println (pathExists(masterPath))    // Should be false but is true.
    }
    node ('master')
    {
        bat returnStatus: true, script: 'set'
        println (pathExists(slavePath))     // false
        println (pathExists(masterPath))    // true
    }
}

Answer 1

这是管道脚本的规范。它写在 tutorial 中.

• readFile step loads a text file from the workspace and returns its content (do not try to use java.io.File methods — these will refer to files on the master where Jenkins is running, not in the current workspace).

• There is also a writeFile step to save content to a text file in the workspace

• fileExists step to check whether a file exists without loading it.

您可以在节点中使用这些 Jenkins 步骤，而不是 java.io.File 或 java.nio.file.Files，如下所示。

String slavePath = 'C:\\Something\\only\\on\\slave\\node'
String masterPath = 'D:\\Something\\only\\on\\master\\node'

stage('One') 
{
    node ('slave')
    {
        bat returnStatus: true, script: 'set'
        println fileExists(slavePath)     // Should be true
        println fileExists(masterPath)    // Should be false
    }
    node ('master')
    {
        bat returnStatus: true, script: 'set'
        println fileExists(slavePath)     // false
        println fileExists(masterPath)    // true
    }
}