How to Configure Jenkins for Git Merge?

Article ID:227246387
1 minute readKnowledge base


  • I am using the functionality that automatically merge branch from Jenkins (Git Plugin and/or Validate Merge Plugin)

  • When doing the merge/push my build fail a stacktrace similar to:

 Caused by: hudson.plugins.git.GitException: Command "/usr/bin/git merge qwertyuiopasdfghjklzxcvbnm" returned status code 128:
 *** Please tell me who you are.
 git config --global ""
 git config --global "Your Name"
 to set your account's default identity.
 Omit --global to set the identity only in this repository.
 fatal: empty ident <jenkins@localhost> not allowed



When doing a push, git needs user information to be able to push anything. This can be configured in Jenkins either Globally or per Project.

Global Configuration

In the global configuration under Manage Jenkins  Configure System  Git Plugin:

global git config

Project Configuration

In the project configuration, under Source Code Management  Git  Additional Behaviours, you can add the behaviour Custom user name/email address:

additional behavior git config

Validate Merge Access Control (For Validate Merge Plugin only)#

When using validate merge, you can specify which user/credentials to use for logging to the remote host. For example, you can use*Username/Password credentials and specify your GitHub API Token as password:

validate merge config

For more information, please have a look at Validate Merge Plugin - Pushing to the upstream repository