[fphilipe]

Here's my take on the one-liner that I use via a `git tidy` alias[1]. A few points:

* It ensures the default branch is not deleted (main, master)

* It does not touch the current branch

* It does not touch the branch in a different worktree[2]

* It also works with non-merge repos by deleting the local branches that are gone on the remote

    git branch --merged "$(git config init.defaultBranch)" \
    | grep -Fv "$(git config init.defaultBranch)" \
    | grep -vF '*' \
    | grep -vF '+' \
    | xargs git branch -d \
    && git fetch \
    && git remote prune origin \
    && git branch -v \
    | grep -F '[gone]' \
    | grep -vF '*' \
    | grep -vF '+' \
    | awk '{print $1}' \
    | xargs git branch -D

[1]: https://github.com/fphilipe/dotfiles/blob/ba9187d7c895e44c35...

[2]: https://git-scm.com/docs/git-worktree

[rubinlinux]

The use of init.defaultBranch here is really problematic, because different repositories may use a different name for their default, and this is a global (your home directory scope) setting you have to pre-set.

I have an alias I use called git default which works like this:

  default = !git symbolic-ref refs/remotes/origin/HEAD | sed 's@^refs/remotes/origin/@@'

then it becomes

  ..."$(git default)"...

This figures out the actual default from the origin.

[jeffrallen]

This is a great solution to a stupid problem.

I work at a company that was born and grew during the master->main transition. As a result, we have a 50/50 split of main and master.

No matter what you think about the reason for the transition, any reasonable person must admit that this was a stupid, user hostile, and needlessly complexifying change.

I am a trainer at my company. I literally teach git. And: I have no words.

Every time I decide to NOT explain to a new engineer why it's that way and say, "just learn that some are master, newer ones are main, there's no way to be sure" a little piece of me dies inside.

[suralind]

It's so funny. After seeing your comment I thought I must have this only to realize I already do: https://github.com/artuross/dotfiles/blob/main/home/dot_conf...

[fphilipe]

I have a global setting for that. Whenever I work in a repo that deviates from that I override it locally. I have a few other aliases that rely on the default branch, such as “switch to the default branch”. So I usually notice it quite quickly when the value is off in a particular repo.

[tonymet]

This is a good one you should contribute it to git extras.