Can't check out another branch in Jenkinsfile?

I have two branches on BitBucket: master

and develop

. I also have a TeamBacket Team Folder job configured on my Jenkins server to create this repository. The branch develop

contains the following Jenkins file:

node {
    stage('Checkout') {
        checkout scm
    }

    stage('Try different branch') {
        sh "git branch -r"
        sh "git checkout master"
    }
}

      

        
        
        
      

    

When Jenkins starts it, the build fails when trying to check master

:

[Pipeline] stage
[Pipeline] { (Try different branch)
[Pipeline] sh
[e_jenkinsfile-tests_develop-4R65E2H6B73J3LB52BLACQOZLBJGN2QG22IPONX3CV46B764LAXA] Running shell script
+ git branch -r
  origin/develop
[Pipeline] sh
[e_jenkinsfile-tests_develop-4R65E2H6B73J3LB52BLACQOZLBJGN2QG22IPONX3CV46B764LAXA] Running shell script
+ git checkout master
error: pathspec 'master' did not match any file(s) known to git.
[Pipeline] }

      

        
        
        
      

    

I expected the command git branch -r

to print both origin/master

and origin/develop

but for some reason it only prints the latter.

I read and tried to think of any ways to do this: for example, I tried installing the SSH Agent Plugin for Jenkins and modified the Jenkins file to:

node {
    stage('Checkout') {
        checkout scm
    }

    stage('Try different branch') {
        sshagent(['Bitbucket']) {
            sh "git branch -r"
            sh "git checkout master"
        }
    }
}

      

        
        
        
      

    

But he still doesn't find origin/master

. To make matters worse, the SSH agent seems to be killed before it tries to check master

:

[Pipeline] { (Try different branch)
[Pipeline] sshagent
[ssh-agent] Using credentials ThomasKasene (Used to communicate with Bitbucket)
[ssh-agent] Looking for ssh-agent implementation...
[ssh-agent]   Exec ssh-agent (binary ssh-agent on a remote machine)
$ ssh-agent
SSH_AUTH_SOCK=/tmp/ssh-M6pIguCUpAV4/agent.11899
SSH_AGENT_PID=11902
$ ssh-add /var/jenkins_home/workspace/e_jenkinsfile-tests_develop-4R65E2H6B73J3LB52BLACQOZLBJGN2QG22IPONX3CV46B764LAXA@tmp/private_key_2394129657382526146.key
Identity added: /var/jenkins_home/workspace/e_jenkinsfile-tests_develop-4R65E2H6B73J3LB52BLACQOZLBJGN2QG22IPONX3CV46B764LAXA@tmp/private_key_2394129657382526146.key (/var/jenkins_home/workspace/e_jenkinsfile-tests_develop-4R65E2H6B73J3LB52BLACQOZLBJGN2QG22IPONX3CV46B764LAXA@tmp/private_key_2394129657382526146.key)
[ssh-agent] Started.
[Pipeline] {
[Pipeline] sh
[e_jenkinsfile-tests_develop-4R65E2H6B73J3LB52BLACQOZLBJGN2QG22IPONX3CV46B764LAXA] Running shell script
+ git branch -r
  origin/develop
[Pipeline] sh
$ ssh-agent -k
unset SSH_AUTH_SOCK;
unset SSH_AGENT_PID;
echo Agent pid 11902 killed;
[ssh-agent] Stopped.
[e_jenkinsfile-tests_develop-4R65E2H6B73J3LB52BLACQOZLBJGN2QG22IPONX3CV46B764LAXA] Running shell script
+ git checkout master
error: pathspec 'master' did not match any file(s) known to git.
[Pipeline] }

      

        
        
        
      

    

My possible plan is to convey something develop

and then combine it into master

, but so far I've had very little luck. Anyone got a possible solution or workaround?

PS: This only seems to be a problem in Jenkinsfile; I have a freestyle that does something similar to what I want and it works great.