Crash on invalid configuration: not existing parent

[rhorenov]

Crash on invalid configuration: not existing parent

Description

gh-org-mgr sync crashes with UnknownObjectException: 404 when a team configuration references a non-existing parent team.

Tested version: github-org-manager==0.7.4, installed using uv tools from PyPI index.

This is similar to the fixed and closed issue #123, possible regression?

Steps to Reproduce

1. Set parent: to a non-existing team name in a team YAML file
2. Run gh-org-mgr sync -c . --dry
3. Tool crashes during team settings configuration

Expected Behavior

Should handle non-existing parent teams gracefully or show a clear error message.

Actual Behavior

Crashes with UnknownObjectException when trying to look up the parent team.

Sample Configuration

File: teams/admin-team.yaml

Admin Team:
  description: "Organization administrators"
  privacy: "closed"
  maintainer:
    - some_user
  repos:
    cool-project: maintain

Development Team:
  description: "Core development team for application development"
  privacy: "closed"
  notification_setting: "notifications_enabled"
  maintainer:
    - some_user
  parent: Missing Team # Problem - crash when the team does not exist
  member:
    - developer-1
  repos:
    cool-project: maintain

Stack Trace

⏳ Configuring team settings...Traceback (most recent call last):
  File "C:\Users\rhorenov\AppData\Roaming\uv\tools\github-org-manager\Lib\site-packages\gh_org_mgr\_gh_org.py", line 358, in _prepare_team_config_for_sync
    team_config["parent_team_id"] = self.org.get_team_by_slug(
                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\rhorenov\AppData\Roaming\uv\tools\github-org-manager\Lib\site-packages\github\Organization.py", line 1394, in get_team_by_slug
    headers, data = self._requester.requestJsonAndCheck("GET", f"{self.url}/teams/{slug}")
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
github.GithubException.UnknownObjectException: 404 {"message": "Not Found", "documentation_url": "https://docs.github.com/rest/teams/teams#get-a-team-by-name", "status": "404"}

[cornelius]

Thanks for the report.

[mxmehl]

Thanks for the detailed report! With #142, this should be handled:

⏳ Validating team hierarchy...
[2025-09-29 16:49:35] DEBUG: https://api.github.com:443 "GET /orgs/***/teams HTTP/1.1" 200 None
[2025-09-29 16:49:35] CRITICAL: The team 'Test2' is configured with parent team 'Missing', but this parent team does not exist and is not configured to be created. Cannot continue.

It now also handles the cases in which the child teams are configured before the parent teams.