Git submodules not updating in Jenkins build

Question

I have a submodule in a project in Jenkins. I've enabled the advanced setting to recursively update submodules.

When I run the build, I see that the workspace has the files from the submodule. The problem is, it seems to be the first revision of the submodule. When I push changes (repository hosted on GitHub) Jenkins doesn't seem to update the submodule to get the right changes. Has anyone ever seen this?

Answer 1

Note that the Jenkins Git plugin 2.0 will have "advance submodule behaviors", which should ensure proper updates of the submodules:

As commented by vikramvi:

Advanced sub-modules behavior > "Path of the reference repo to use during submodule update" against this field , add submodule git url.

---

Owen B mentions in the comments:

For the authentication issue, there's now a "Use credentials from default remote of parent repository" option

Seen here in JENKINS-20941:

Answer 2

This is covered in the Git Plugin documentation on the Jenkins site under the section: Recursive submodules.

excerpt

The GIT plugin supports repositories with submodules which in turn have submodules themselves. This must be turned on though: in Job Configuration -> Section Source Code Management, Git -> Advanced Button (under Branches to build) -> Recursively update submodules.

Example

From the configuration screen of your job, in the Source Code Management section, pull the Add button down select "Advanced sub-modules behavior".

   

                                 

Then select "Recursively update submodules":