Re: Shell completion for branch names

[Jeff King <peff@peff.net>]

On Wed, Apr 07, 2021 at 04:23:16PM +0200, jost.schulte@tutanota.com wrote:

> I have a question regarding git-completion. I'm using zsh and have
> added the function .git-completion.bash. That gives me some
> auto-completion for branch names.
> 
> What I'm looking for: I have a branch named
> "feature/issue-123-add-feature" for example. I'd like to type "git
> switch 123[tab]". Is there some function out there that provides this?

Generally completion is done left-to-right for a partial string. The
thing you are asking about is usually called "fuzzy" completion. You can
use that term to find some discussion and tools that may help (e.g.,
[1]). I don't use any myself, so I can't comment on the quality.

I'm also not sure if they can be used with custom completions like the
one Git provides. One of the things Git's completion code does is
turning those partial strings into a full set of options. In theory a
fuzzy completion system could just feed Git's completion code an empty
string to get all possibilities, and then do its own fuzzy match against
it. But again, I don't know if anybody has written the glue code to do
that kind of thing.

-Peff

[1] https://github.com/junegunn/fzf#fuzzy-completion-for-bash-and-zsh