Migrating from Bitbucket Server to GHEC - Default branch is not retained

[lavanyanooka]

Description

I am doing performing repository migrations for a customer from Bitbucket server to GHEC-EMU using GEI bbs2gh tool.
For certain repositories, the default branch from the source repo is not correctly retained in the target repo.

For instance:

• Source Repo in bitbucket server has develop branch as default branch
• Migrate this repo using GEI bbs2gh tool
• After migration, the target repo in GHEC has the master branch as default

Reproduction Steps

Migrate source repo in bitbucket to GHEC using the below cli command

gh bbs2gh migrate-repo --aws-bucket-name "{aws-bucket}" --bbs-server-url "{server-url}" --bbs-project "{bbs-project}" --bbs-repo "{bbs-repo}" --github-org "{github-org}" --github-repo "{github-repo}" --target-repo-visibility internal

After migration, check the default branch on Github and it does not match with the default branch on the Bitbucket server.

This is causing an issue in a 100% validation of the pre and post migration of the repositories that the customer is aiming for.

[dpmex4527]

@lavanyanooka can you submit a support ticket for this error? That way it gets routed internally to our engineering teams for further support. Please provide the migration_id associated with this error.

[lavanyanooka]

Hello @dpmex4527,

Please find the support tickets here
https://support.github.com/ticket/enterprise/5811/3820458
https://support.github.com/ticket/personal/0/3835990

and Migration ID: e82f20b3-92a0-4b54-880a-b136e459dd7d

Thank you.

[tambling]

We have a draft PR that should fix this—I'll get it pulled out of mothballs and hopefully reviewed/shipped.