Updating a submodule

[Mathieu Yargeau]

For a given repository, I would like to update a specific submodule to a specific SHA.

In command line, I am able to do this using the command 

git submodule update --remote MySubModule

And then push it. It updates it to the latest SHA.

I would like to do the same (update and push) through the Stash API (with a hook of some kind, using a service), but with a specific SHA, not necessarily the latest.

I tried searching in the Stash API, but did not find what I wanted. Is this even possible?

[Balázs Szakmáry]

I wanted to do a very similar thing in a plugin once but ended up abandoning it. There is no way to do this with the Stash API. More precisely, you need to invoke Git from the Stash API, (shallow) clone the repo somewhere and push a commit containing the submodule change.

[Mathieu Yargeau]

Do you know how to create that shallow clone and run raw Git commands from the Stash API?

[Balázs Szakmáry]

I think you need to create a Command object with https://developer.atlassian.com/static/javadoc/stash/latest/api/reference/com/atlassian/stash/scm/ScmCommandBuilder.html and then call it. (This applies to all raw Git commands.)