jenkins管道:带管道的多行shell命令 [英] jenkins pipeline: multiline shell commands with pipe

问题描述

我试图创建一个Jenkins管道，在其中我需要执行多个shell命令，并在下一个命令中使用一个命令的结果.我发现将命令包装在三个单引号'''中可以达到相同的效果.但是，在使用管道将一个命令的输出馈送到另一个命令时，我遇到了问题.例如

I am trying to create a Jenkins pipeline where I need to execute multiple shell commands and use the result of one command in the next command or so. I found that wrapping the commands in a pair of three single quotes ''' can accomplish the same. However, I am facing issues while using pipe to feed output of one command to another command. For example

   stage('Test') {
      sh '''
         echo "Executing Tests"
         URL=`curl -s "http://localhost:4040/api/tunnels/command_line" | jq -r '.public_url'`
         echo $URL
         RESULT=`curl -sPOST "https://api.ghostinspector.com/v1/suites/[redacted]/execute/?apiKey=[redacted]&startUrl=$URL" | jq -r '.code'`
         echo $RESULT
      '''
   }

带有管道的命令无法正常工作.这是jenkins控制台的输出:

Commands with pipe are not working properly. Here is the jenkins console output:

+ echo Executing Tests
Executing Tests
+ curl -s http://localhost:4040/api/tunnels/command_line
+ jq -r .public_url
+ URL=null
+ echo null
null
+ curl -sPOST https://api.ghostinspector.com/v1/suites/[redacted]/execute/?apiKey=[redacted]&startUrl=null

推荐答案

我尝试在jenkins代码段生成器中为管道输入所有这些命令，并提供了以下输出:

I tried entering all these commands in the jenkins snippet generator for pipeline and it gave the following output:

sh '''         echo "Executing Tests"
         URL=`curl -s "http://localhost:4040/api/tunnels/command_line" | jq -r \'.public_url\'`
         echo $URL
         RESULT=`curl -sPOST "https://api.ghostinspector.com/v1/suites/[redacted]/execute/?apiKey=[redacted]&startUrl=$URL" | jq -r \'.code\'`
         echo $RESULT
'''

注意命令jq -r \'.public_url\'和jq -r \'.code\'中的转义单引号.通过这种方式使用代码可以解决问题

Notice the escaped single quotes in the commands jq -r \'.public_url\' and jq -r \'.code\'. Using the code this way solved the problem

更新:一段时间后，甚至开始出现问题.在执行某些命令之前，需要执行某些命令.其中一个是grunt serve，另一个是./ngrok http 9000.我在这些命令中的每条命令之后都添加了一些延迟，现在它解决了问题.

UPDATE: : After a while even that started to give problems. There were certain commands executing prior to these commands. One of them was grunt serve and the other was ./ngrok http 9000. I added some delay after each of these commands and it solved the problem for now.

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