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feat: add support for merge_base API by nejch · Pull Request #2236 · python-gitlab/python-gitlab · GitHub
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feat: add support for merge_base API #2236

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Merged
JohnVillalovos merged 1 commit into from
Aug 19, 2022
Merged

feat: add support for merge_base API #2236

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6 changes: 6 additions & 0 deletions docs/cli-examples.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -302,6 +302,12 @@ Define the status of a commit (as would be done from a CI tool for example):
--target-url http://server/build/123 \
--description "Jenkins build succeeded"

Get the merge base for two or more branches, tags or commits:

.. code-block:: console

gitlab project repository-merge-base --id 1 --refs bd1324e2f,main,v1.0.0

Artifacts
---------

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4 changes: 4 additions & 0 deletions docs/gl_objects/projects.rst
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Expand Up @@ -231,6 +231,10 @@ Compare two branches, tags or commits::
for file_diff in result['diffs']:
print(file_diff)

Get the merge base for two or more branches, tags or commits::

commit = project.repository_merge_base(['main', 'v1.2.3', 'bd1324e2f'])

Get a list of contributors for the repository::

contributors = project.repository_contributors()
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28 changes: 27 additions & 1 deletion gitlab/v4/objects/repositories.py
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Expand Up @@ -10,7 +10,7 @@
import gitlab
from gitlab import cli
from gitlab import exceptions as exc
from gitlab import utils
from gitlab import types, utils

if TYPE_CHECKING:
# When running mypy we use these as the base classes
Expand Down Expand Up @@ -246,6 +246,32 @@ def repository_archive(
result, streamed, action, chunk_size, iterator=iterator
)

@cli.register_custom_action("Project", ("refs",))
@exc.on_http_error(exc.GitlabGetError)
def repository_merge_base(
self, refs: List[str], **kwargs: Any
) -> Union[Dict[str, Any], requests.Response]:

@JohnVillalovos JohnVillalovos Aug 16, 2022

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This made me think if we should start forcing these to just be a Dict?

@nejch nejch Aug 16, 2022 •
edited
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Thanks @JohnVillalovos! Makes sense to me! I was looking at doing this via overloading http_get/http_request to narrow the types there already, depending on the streamed/raw arguments but it got a bit out of hand. Then I think we wouldn't need to do it in "downstream" methods, IIUC. I will look into it again :)

But it requires quite a few overloads for all the possible signatures. This is what I was looking at https://medium.com/analytics-vidhya/making-sense-of-typing-overload-437e6deecade.

"""Return a diff between two branches/commits.

Args:
refs: The refs to find the common ancestor of. Multiple refs can be passed.
**kwargs: Extra options to send to the server (e.g. sudo)

Raises:
GitlabAuthenticationError: If authentication is not correct
GitlabGetError: If the server failed to perform the request

Returns:
The common ancestor commit (*not* a RESTObject)
"""
path = f"/projects/{self.encoded_id}/repository/merge_base"
query_data, _ = utils._transform_types(
data={"refs": refs},
custom_types={"refs": types.ArrayAttribute},
transform_data=True,
)
return self.manager.gitlab.http_get(path, query_data=query_data, **kwargs)

@JohnVillalovos JohnVillalovos Aug 16, 2022

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To force it to be a Dict I think could do this:

Suggested change
return self.manager.gitlab.http_get(path, query_data=query_data, **kwargs)
result = self.manager.gitlab.http_get(path, query_data=query_data, raw=False, streamed=False, **kwargs)
if TYPE_CHECKING:
assert isinstance(result, dict)
return result


@cli.register_custom_action("Project")
@exc.on_http_error(exc.GitlabDeleteError)
def delete_merged_branches(self, **kwargs: Any) -> None:
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10 changes: 10 additions & 0 deletions tests/functional/api/test_repository.py
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Expand Up @@ -174,3 +174,13 @@ def test_revert_commit(project):
with pytest.raises(gitlab.GitlabRevertError):
# Two revert attempts should raise GitlabRevertError
commit.revert(branch="main")


def test_repository_merge_base(project):
refs = [commit.id for commit in project.commits.list(all=True)]

commit = project.repository_merge_base(refs)
assert commit["id"] in refs

with pytest.raises(gitlab.GitlabGetError, match="Provide at least 2 refs"):
commit = project.repository_merge_base(refs[0])