主页 / coding / 问题 / 79543601
Accepted
Chris F
Asked: 2025-03-30 01:02:38 +0800 CST

Jenkins 管道无法打开现有文件

  • 772

我有以下测试代码来尝试打开和修改文件的内容：

private def updateTagInfoInFile(final String file) {
  final String tmpFile = "tmp.txt"
  sh "ls -al /data/workspace/Utilities/Playground"
  sh "whoami; pwd; ls -al"
  new File("/data/workspace/Utilities/Playground/copy-artifact/$file").eachLine{line->
    if (line.startsWith("Tag")) {
      // Count the number of spaces between "Tag:     <tag>" to preserve the formatting
      final Integer numSpaces = line.length() - line.replaceAll(" ", "").length()
      line = "Tag:"+" ".multiply(numSpaces)+"newTag"
    }
    sh "echo $line >> $tmpFile"
  }
  sh "mv $tmpFile $file"
}

updateTagInfoInFile("someFile.txt")

但我收到以下错误：

+ ls -al /data/workspace/Utilities/Playground
total 0
drwxrwxr-x 4 ubuntu ubuntu  52 Mar 29 16:46 .
drwxrwxr-x 5 ubuntu ubuntu 136 Mar 29 16:38 ..
drwxrwxr-x 2 ubuntu ubuntu  45 Mar 29 16:38 copy-artifact
drwxrwxr-x 3 ubuntu ubuntu  30 Mar 29 17:29 copy-artifact@tmp
+ whoami
ubuntu
+ pwd
/data/workspace/Utilities/Playground/copy-artifact
+ ls -al
total 4
drwxrwxr-x 2 ubuntu ubuntu   45 Mar 29 16:38 .
drwxrwxr-x 4 ubuntu ubuntu   52 Mar 29 16:46 ..
-rw-rw-r-- 1 ubuntu ubuntu 2368 Mar 29 16:24 someFile.txt
[Pipeline] }
[Pipeline] // stage
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
Also:   org.jenkinsci.plugins.workflow.actions.ErrorAction$ErrorId: b41cce20-1d11-416e-8e89-e5aec9147ea5
java.io.FileNotFoundException: /data/workspace/Utilities/Playground/copy-artifact/someFile.txt (No such file or directory)
    at java.base/java.io.FileInputStream.open0(Native Method)
    at java.base/java.io.FileInputStream.open(Unknown Source)
    at java.base/java.io.FileInputStream.<init>(Unknown Source)
    at groovy.util.CharsetToolkit.<init>(CharsetToolkit.java:78)
    at org.codehaus.groovy.runtime.ResourceGroovyMethods.newReader(ResourceGroovyMethods.java:1599)
...

该文件显然存在，那为什么我会收到错误呢？

1 个回答

  1. Best Answer

    这是一个常见的陷阱，我过去也遇到过。该类File在 Jenkins 主服务器上执行操作，而不一定在构建代理上执行操作（除非代理是master）。以下代码行（肯定会抛出Exception）：

    new File("/data/workspace/Utilities/Playground/copy-artifact/$file")

    可能应该替换为：

    import hudson.FilePath
import jenkins.model.Jenkins

new FilePath(Jenkins.getInstance().getComputer(env['NODE_NAME']).getChannel(), "/data/workspace/Utilities/Playground/copy-artifact/$file")

    但是，我并不完全确定该代码是否能完美地取代您当前正在寻找的功能，并且我相信我改编自几年前看到的一个答案，该答案是由比我更精通 Pipeline 的人提供的。这里可能仍然存在问题，如果有必要，我们可以在评论中讨论。

    编辑完整解决方案

    new FilePath(Jenkins.getInstance().getComputer(env['NODE_NAME']).getChannel(), "/data/workspace/Utilities/Playground/copy-artifact/$file").readToString().split("\n").each{line->
  // same code as above
}
    • 1

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