How to find a merge-commit for the pull-request via Stash REST API?

[Ivan Lezhankin]

I have the merged pull-request id, and I want to get the hash of it's merge-commit.

How can I do it?

[cofarrell · Accepted solution]

Hi Ivan,

I hope I don't lead you astray but I'm not actually sure if that's possible from REST. We certainly have to the from/to refs in the core REST API, but that's not quite what you're after?

This might sound a little strange but you _could_ just use Git's smart HTTP ref advertisement instead. This is what Git uses as part of fetch/clone. You can see what I mean by running the following:

GIT_CURL_VERBOSE=1 git ls-remote origin

The environment variable is just so you can see the URL, which looks like:

curl "http://host:port/scm/PROJECT/repo.git/info/refs?service=git-upload-pack"

At that point you could just grep for the hash against refs/pull-requests/$PR/merge-clean.*

Does that help?

Charles

* Just FYI in an upcoming version of Stash we're planning on cleaning up some of these refs and merge-clean will most likely become merge. Just so you know.

[Ivan Lezhankin]

GIT_CURL_VERBOSE=1 doesn't work for me, but your point is clear.

[cofarrell]

Hi Ivan,

As one of my colleagues just pointed out, if you're looking for the commit that was actually merged then my previous advice is going to be wrong. merge-clean is an internal ref that will always differ from the final merge commit.

Apologies for the confusion. I can't think of anything that will return the commit hash you're looking for. :(

Charles