feat(scm): Add 'get_repository'

[jacquev6]

This adds get_repository to the SCM platform, for GitHub and GitLab.

Client side PR is https://github.com/getsentry/seer/pull/5688.

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[cursor]

get_repository missing from module __all__ export list

Low Severity

The get_repository function, newly added to actions.py, isn't included in the module's __all__ tuple. This deviates from the established pattern for exporting action functions and may affect its availability for imports or registration.

 

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[billyvg]

Is Warden right? should we update types to reflect this?

[jacquev6]

Are you referring to this #112569 (comment) ? If yes, I marked it as resolved because I think I fixed the issue in d2be5ea above.

[billyvg]

Ah no, was referring to this annotation:

default_branch can be null for empty GitLab repositories
Check warning: default_branch can be null for empty GitLab repositories
The map_repository function directly accesses raw["default_branch"] without handling the case where GitLab returns null for empty repositories (repositories with no commits or branches). According to GitLab API documentation, default_branch is null until the first commit creates a branch. The GitRepository TypedDict expects default_branch: str, so passing None violates the type contract and may cause downstream TypeError when the value is used as a string.

[jacquev6]

Replaced by getsentry/scm-platform#2.