jenkins pipeline: multiline shell commands with pipe

Question

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 t

Answer 1

The following scenario shows a real example that may need to use multiline shell commands. Which is, say you are using a plugin like Publish Over SSH and you need to execute a set of commands in the destination host in a single SSH session:

stage ('Prepare destination host') {
  sh '''
      ssh -t -t user@host 'bash -s << 'ENDSSH'
      if [[ -d "/path/to/some/directory/" ]];
      then
          rm -f /path/to/some/directory/*.jar
      else
          sudo mkdir -p /path/to/some/directory/
          sudo chmod -R 755 /path/to/some/directory/
          sudo chown -R user:user /path/to/some/directory/
      fi
ENDSSH'
     '''
}

Special Notes:

• The last ENDSSH' should not have any characters before it. So it should be at the starting position of a new line.
• use ssh -t -t if you have sudo within the remote shell command

Answer 2

I split the commands with &&

node {
  FOO = world
  stage('Preparation') { // for display purposes
      sh "ls -a && pwd && echo ${FOO}"
  }
}

The example outputs: - ls -a (the files in your workspace - pwd (location workspace) - echo world

Answer 3

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
'''

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

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.