github environment variables in jenkinsfile pipeline

[Leonidas Kanellopoulos]

I have a multi repo job and want to check out in one pipeline 2 branches ( 1 from each repo ) 

From repo A I Poll for a feature*  and then I want to attempt to build repo B with that same feature* or fallback to develop branch.

In the GUI job version I was using checkout to specific local branch with ** which populated the GIT_LOCAL_BRANCH env variable. and hence repo B had alternative strategy checkout with 

GIT_LOCAL_BRANCH or develop. 

In the jenkinsfile pipeline

the env,GIT_LOCAL_BRANCH always returns null . 

I read online that this variable is only accessed for a multibranch pipeline ?

Is there no other way to get the git branch that  was just checked out so I can pass it to the resolve scm step ? 

Below is the jenkinsfile.

node {

  stage ('Stage CheckOut 1'){ 

   

//Repo A ( has Polling )    

 checkout([$class: 'GitSCM', branches: [[name: '*/feature**']], 

 doGenerateSubmoduleConfigurations: false, extensions: [[$class:

 'RelativeTargetDirectory', relativeTargetDir: 'android'], [$class:'LocalBranch', localBranch: '**']],

 submoduleCfg: [], userRemoteConfigs:

 [[credentialsId: '', url:

 'https://github.com/....git']]])

//Checking if similar branch name as repo A exists in repo B 

 def b  = resolveScm source: [$class: 'GitSCMSource', credentialsId: '',

 id: '_', remote: 'https://github.com/.....git', traits: [[$class: 'jenkins.plugins.git.traits.BranchDiscoveryTrait']]],

 targets: [env. GIT_LOCAL_BRANCH, 'develop']

 checkout b

 

  }   

  }  

[Mark Waite]

On Wed, Sep 27, 2017 at 7:39 PM Leonidas Kanellopoulos <leonid...@gmail.com> wrote:

I have a multi repo job and want to check out in one pipeline 2 branches ( 1 from each repo ) 

From repo A I Poll for a feature*  and then I want to attempt to build repo B with that same feature* or fallback to develop branch.

In the GUI job version I was using checkout to specific local branch with ** which populated the GIT_LOCAL_BRANCH env variable. and hence repo B had alternative strategy checkout with 

GIT_LOCAL_BRANCH or develop. 

In the jenkinsfile pipeline

the env,GIT_LOCAL_BRANCH always returns null . 

If you're using Jenkins 2.60 or newer, and the latest releases of the pipeline plugins, then you can assign the return value of checkout to a groovy variable and use that as a map to access the name of the branch.

def repoMap = checkout( /* your setup here */ )

then access the contents of repoMpa.

 

I read online that this variable is only accessed for a multibranch pipeline ?

Is there no other way to get the git branch that  was just checked out so I can pass it to the resolve scm step ? 

Below is the jenkinsfile.

node {

  stage ('Stage CheckOut 1'){ 

   

//Repo A ( has Polling )    

 checkout([$class: 'GitSCM', branches: [[name: '*/feature**']], 

 doGenerateSubmoduleConfigurations: false, extensions: [[$class:

 'RelativeTargetDirectory', relativeTargetDir: 'android'], [$class:'LocalBranch', localBranch: '**']],

 submoduleCfg: [], userRemoteConfigs:

 [[credentialsId: '', url:

 'https://github.com/....git']]])

//Checking if similar branch name as repo A exists in repo B 

 def b  = resolveScm source: [$class: 'GitSCMSource', credentialsId: '',

 id: '_', remote: 'https://github.com/.....git', traits: [[$class: 'jenkins.plugins.git.traits.BranchDiscoveryTrait']]],

 targets: [env. GIT_LOCAL_BRANCH, 'develop']

 checkout b

 

  }   

  }  

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