Switch default branch to main

[waitingkuo]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.

As discussed in https://lists.apache.org/thread/olhpz7mxh597t7qf5h25xpg97hy9os4t

Describe the solution you'd like

Switch the default branch from master to main
Keep master branch up to date for a while, add some deprecation notification in the master branch

[HaoYang670]

Maybe also do this change in Datafusion and Ballista.

[assignUser]

Keep master branch up to date for a while, add some deprecation notification in the master branch

This is not necessary, github will forward master to the new default branch and a bunch of other stuff (from )

• Retarget any open pull requests
• Update any draft releases based on the branch
• Move any branch protection rules that explicitly reference the old the branch used to build GitHub Pages, if applicable
• Show a notice to repository contributors, maintainers, and admins on the repository homepage with instructions to update local copies of the repository
• Show a notice to contributors who git push to the old branch
• Redirect web requests for the old branch name to the new branch name
• Return a "Moved Permanently" response in API requests for the old branch name

So unless there is a bunch of tooling with master hard coded (e.g the issue over in apche/arrow) renaming should be pretty painless.

[ByteBaker]

@alamb @tustvold any plan around this?

[alamb]

I personally would appreciate having the branch changed just so it was consistent with all my other repos.

[ByteBaker]

Apart from hard-coded names in places like CI, I think it should be relatively straightforward.

[tustvold]

No objections from me if someone wishes to do the necessary legwork, although I will confess to finding this particular fad somewhat baffling

[ByteBaker]

I'm up for making changes that go through commits. But otherwise this exercise needs someone with admin access.

Reference

[alamb]

Looks like we need to file a request with apache Infra in JIRA.

I have filed https://issues.apache.org/jira/browse/INFRA-26183 to request the change

[alamb]

Here is a mailing list thread proposing this change https://lists.apache.org/thread/x57h0fht173c9zrb02cg6plmlnr6xcc9

[alamb]

We are proceeding with this process -- please see https://issues.apache.org/jira/browse/INFRA-26183 for details. I will likely delete the master branch when that is complete.

[alamb]

This has now been completed and the repos's default branch is now main 😅

Thank you all very much.

[tustvold]

At least some work remains here, e.g updating the branch protection rules.

https://github.com/apache/arrow-rs/blob/main/.asf.yaml

[alamb]

At least some work remains here, e.g updating the branch protection rules.

https://github.com/apache/arrow-rs/blob/main/.asf.yaml

Proposed fix:

• Update references from master to main #6795