Question

Using Multiple Git Repositories with Jenkins - CI/CD

Posted on April 15, 2021
CI/CD
Asked by Brendo Ross

Hi all,

It’s been a long time since I last posted a question here but I’m back! :D

Anyway, I’m currently trying some stuff with Jenkins and I’ve started creating a small project. I have an issue where I have 3 repositories (Jenkinsfile, script and some additional libraries) which I want to include in my pipeline.

I’m using SCM and my Jenkinsfile is in one of the repositories.

So far all my attempts have failed. Here is what I have:

node {
  stage 'prepare'
  checkout scm

and I am defining the Jenkinsfile repo in the job configuration.

So what I would like to do is check out all three repositories, then use the Jenkinsfile to use the rest.

Anyone has any suggestions?

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KFSys

Site Moderator

• April 15, 2021

Accepted Answer

Hi @brendRos,

I think in your case the RelativeTargetDirectory plugin of the GitSCM class should help. You can read more about it here:

Relative Target Directory

Or here

Jenkins Documentation

When you open the Jenkins Documentation(above link) select - $class: ‘GitSCM’ and then inside you’ll be able to find $class: ‘RelativeTargetDirectory’

$class: 'RelativeTargetDirectory'
relativeTargetDir
Specify a local directory (relative to the workspace root) where the Git repository will be checked out. If left empty, the workspace root itself will be used.
Type: String

Here is an example of how to use it

stages {
    stage('GitCheckout') {
        steps {
            checkout \
                scm: [ $class : 'GitSCM', branches: [[name: '*/master']], extensions: [[$class: 'RelativeTargetDirectory', relativeTargetDir: 'subdirectory2']], submoduleCfg: [], userRemoteConfigs: [[url: 'repo2.git']]])]
        }
    }
}

Please remember to change the relativeTargetDir - subdirectory2 in this case to the one you want.

Additionally, in userRemoteConfigs: [[url: ‘repo2.git’]]] add your actual git repo.

Regards, KFSys

KFSys

Site Moderator

• April 17, 2021

Hi @brendRos,

I’m starting a new thread/answer just because the previous one became too long and it might be confusing to read afterwards.

I’m going to try and answer to both question in a single code block. The code block will include both a better readable syntax and how to post multiple Git Repositories to be checked out:


stages {
    stage('GitCheckout') {
        steps {
            checkout \
                scm: [ $class : 'GitSCM', \
                     branches: [[name: '*/master']], \
                     extensions: [[$class: 'RelativeTargetDirectory', relativeTargetDir: 'subdirectory1']], 
                                 [ $class: 'ScmName', name: 'subdirectory1' ]], \
                     userRemoteConfigs: [[ \
                         url: 'repo1.git'  \
                     ]]
                ]
            ]
            checkout \
                scm: [ $class : 'GitSCM', \
                     branches: [[name: '*/master']], \
                     extensions: [[$class: 'RelativeTargetDirectory', relativeTargetDir: 'subdirectory2']], 
                                 [ $class: 'ScmName', name: 'subdirectory2' ]], \
                     userRemoteConfigs: [[ \
                         url: 'repo1.git'  \
                     ]]
                ]
            ]
        }
    }
}