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{"@context":"https://schema.org","@type":"QAPage","mainEntity":{"@type":"Question","name":"Project.repository_merge_base([...]) with forks (remotes)","text":"
I am trying to streamline some cherry-picking for gitlab workflows.
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The principle is simple:
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Create a merge-request and label it with a specific label that marks it to be backported (cherry picked)
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Run a script that can create the necassary cherry-pick command
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Now, I can rather simple get to the point where I have the source branch and target branch as objects in the API workflow:
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# def get_project(project_id) -> Project\nmr = project.mergerequests.get(id)\nproject = get_project(project_id)\nsource = get_project(mr.source_project_id, mr.manager.gitlab).branches.get(mr.source_branch)\ntarget = project.branches.get(mr.target_branch)
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Generally these two originates from different sources, i.e. target.web_url != source.web_url.
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I tried:
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mb = project.repository_merge_base([\n    target.commit[\"web_url\"],\n    source.commit[\"web_url\"]\n])
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to no avail (not that i fully expected this to work)...
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So basically, how can I use gitlab to extract the merge-base between the two branches? Or, can I retrieve the commits that will be added (or has been added) to target so I can create the necessary cherry-picks?
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The merge-request can either be merged, or not merged, both cases are interesting!
","upvoteCount":1,"answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"
First thing I would do is look at the upstream documentation:
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https://docs.gitlab.com/ee/api/repositories.html#merge-base
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From my quick glance I don't think it will work how you hope. I believe it only takes refs aka SHA values.
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One thing that might be helpful for debugging is:
\ntarget.pprint() that should print out all the values in the object. Which can be helpful. All the Python GitLab objects support pprint(), pformat(), to_json(), and asdict(). Depending on the situation they can be useful in debugging code.
","upvoteCount":1,"url":"https://github.com/python-gitlab/python-gitlab/discussions/2883#discussioncomment-9549328"}}}