git fails if no global email/name set, even if set in Jenkins interface

I have scm-sync-configuration set to use git.

I set a git user.name and user.email value in the “Git plugin” section of the Jenkins configuration page, but the sync wasn’t working.

When I looked at the Jenkins log file, I saw this:

used by: hudson.plugins.git.GitException: Command "git tag -a -f -m Jenkins Build #1 jenkins-pep8-1" returned status code 128:
stdout: 
stderr: 
*** Please tell me who you are.

Run

  git config --global user.email "[e-mail]"
  git config --global user.name "Your Name"

When I set these on the command line, sync worked again.

Does scm-sync-configuration use these options from the git plugin? If not, should be documented somewhere. Also, would have been helpful to see this error info in the scm error log.

I was trying to build a new system and restore from an existing repository, so I may have been doing something non-standard here (I manually cloned the repo to $JENKINS_HOME/scm-sync-configuration/checkoutConfiguration).

[namedgraph]

4 years later and this is still not fixed?..

[developerinlondon]

the easiest way i had a workaround for this was by adding a .gitconfig file in the jenkins root folder with the following:

[user]
        name = <git-username>
        email = <git-email>