Jenkins：无法在流水线阶段定义变量 [英] Jenkins: Cannot define variable in pipeline stage

问题描述

这是我的脚本：

  pipeline {
 agent none 
 stages {
 stage（first）{
 def foo =foo //失败，并显示WorkflowScript：5：预计在第5行，第13列有一个步骤。 
 shecho $ {foo}
} 
} 
} 
  

然而，我得到这个错误：

  org.codehaus.groovy.control.MultipleCompilationErrorsException：启动失败： 
 WorkflowScript：5：预计会有一个步骤@第5行，第13列。
 def foo =foo
 ^ 
  

我在Jenkins 2.7.4和Pipeline 2.4上。

解决方案

Jenkins Pipelines的声明模型有一个限制的语法子集，它允许在阶段块中查看更多信息的语法指南。您可以通过将步骤封装在脚本{...} 块中来绕过该限制，但是结果是，您将失去验证语法，参数等脚本块。

I'm trying to create a declarative Jenkins pipeline script but having issues with simple variable declaration.

Here is my script:

pipeline {
   agent none
   stages {
       stage("first") {
           def foo = "foo" // fails with "WorkflowScript: 5: Expected a step @ line 5, column 13."
           sh "echo ${foo}"
       }
   }
}

However, I get this error:

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
WorkflowScript: 5: Expected a step @ line 5, column 13.
           def foo = "foo"
           ^

I'm on Jenkins 2.7.4 and Pipeline 2.4.

解决方案

The Declarative model for Jenkins Pipelines has a restricted subset of syntax that it allows in the stage blocks - see the syntax guide for more info. You can bypass that restriction by wrapping your steps in a script { ... } block, but as a result, you'll lose validation of syntax, parameters, etc within the script block.

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