Jenkins 管道sh返回stdout不起作用

Question

我正在尝试使用 Jenkins 管道 sh 命令的 returnStdout 功能。此处定义 https://jenkins.io/doc/pipeline/steps/workflow-durable-task-step/#code-sh-code-shell-script

从之前的问题和答案中提取:Is it possible to capture the stdout from the sh DSL command in the pipeline

我的原始代码:

node{
def output = sh(returnStdout: true, script: 'pwd')
println "output = ${output}"
}

及其结果。您可以看到我正在获取退出代码而不是传递给我的变量的结果:

[Pipeline] node {
[Pipeline] sh
[Update_Stageing_DB] Running shell script
+ pwd
/mnt/storage/jenkins/workspace/Update_Stageing_DB
[Pipeline] echo
output = 0
[Pipeline] } //node
[Pipeline] Allocate node : End
[Pipeline] End of Pipeline
Finished: SUCCESS

根据示例，我认为我可能需要添加 .trim() 以便我更新的代码如下所示:

node{
def output = sh(returnStdout: true, script: 'pwd').trim()
println "output = ${output}"
}

但这会导致整个工作失败:

[Pipeline] node {
[Pipeline] sh
[Update_Stageing_DB] Running shell script
+ pwd
/mnt/storage/jenkins/workspace/Update_Stageing_DB
[Pipeline] } //node
[Pipeline] Allocate node : End
[Pipeline] End of Pipeline
hudson.remoting.ProxyException: groovy.lang.MissingMethodException: No signature of method: java.lang.Integer.trim() is applicable for argument types: () values: []
Possible solutions: wait(), grep(), wait(long), times(groovy.lang.Closure), div(java.lang.Character), print(java.io.PrintWriter)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:58)
at org.codehaus.groovy.runtime.callsite.PojoMetaClassSite.call(PojoMetaClassSite.java:49)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
at com.cloudbees.groovy.cps.sandbox.DefaultInvoker.methodCall(DefaultInvoker.java:15)
at WorkflowScript.run(WorkflowScript:3)
at ___cps.transform___(Native Method)
at com.cloudbees.groovy.cps.impl.ContinuationGroup.methodCall(ContinuationGroup.java:55)
at com.cloudbees.groovy.cps.impl.FunctionCallBlock$ContinuationImpl.dispatchOrArg(FunctionCallBlock.java:106)
at com.cloudbees.groovy.cps.impl.FunctionCallBlock$ContinuationImpl.fixName(FunctionCallBlock.java:74)
at sun.reflect.GeneratedMethodAccessor771.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.cloudbees.groovy.cps.impl.ContinuationPtr$ContinuationImpl.receive(ContinuationPtr.java:72)
at com.cloudbees.groovy.cps.impl.ConstantBlock.eval(ConstantBlock.java:21)
at com.cloudbees.groovy.cps.Next.step(Next.java:58)
at com.cloudbees.groovy.cps.Continuable.run0(Continuable.java:154)
at org.jenkinsci.plugins.workflow.cps.CpsThread.runNextChunk(CpsThread.java:164)
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:277)
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.access$000(CpsThreadGroup.java:77)
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:186)
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:184)
at org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$2.call(CpsVmExecutorService.java:47)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at hudson.remoting.SingleLaneExecutorService$1.run(SingleLaneExecutorService.java:112)
at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Finished: FAILURE

我确定我错过了一些基本的东西，但对于我的生活，我看不出这个简单的代码有什么问题。任何帮助，将不胜感激。

Jenkins 版。 2.32.2

Answer 1

No signature of method: java.lang.Integer.trim() is applicable

该错误消息意味着 sh step 返回一个数值。
对我来说，这只发生在我使用 returnStatus 时。参数而不是 returnStdout在 sh步骤调用。

确保您的插件是最新的，并且您使用的是正确的参数；例如，如果您从远程 SCM 加载管道，您可以使用任何构建页面侧边栏中的“重播”链接来准确查看加载了哪些管道脚本。

另外，如果你真的只需要运行 pwd在 shell 步骤中，您可以使用 pwd 稍微简化一下。流水线步骤。