shithub: furgit

ref: 246c82d09118977d45e6ccdf3a289ba0f451cd87
dir: /refstore/loose/shorten.go/

package loose

import (
	"codeberg.org/lindenii/furgit/refstore"
)

// Shorten returns the shortest unambiguous shorthand for a loose ref name.
func (store *Store) Shorten(name string) (string, error) {
	refs, err := store.List("")
	if err != nil {
		return "", err
	}
	names := make([]string, 0, len(refs))
	found := false
	for _, entry := range refs {
		if entry == nil {
			continue
		}
		full := entry.Name()
		names = append(names, full)
		if full == name {
			found = true
		}
	}
	if !found {
		return "", refstore.ErrReferenceNotFound
	}
	return refstore.ShortenName(name, names), nil
}