Method resetIndex

worktree.go:374–437

(t *object.Tree, dirs []string, files []string)

}

func (w *Worktree) resetIndex(t *object.Tree, dirs []string, files []string) ([]string, error) {
	idx, err := w.r.Storer.Index()
	if err != nil {
		return nil, err
	}

	b := newIndexBuilder(idx)

	changes, err := w.diffTreeWithStaging(t, true)
	if err != nil {
		return nil, err
	}

	removedFiles := make([]string, 0, len(changes))
	filesMap := buildFilePathMap(files)
	for _, ch := range changes {
		a, err := ch.Action()
		if err != nil {
			return nil, err
		}

		var name string
		var e *object.TreeEntry

		switch a {
		case merkletrie.Modify, merkletrie.Insert:
			name = ch.To.String()
			e, err = t.FindEntry(name)
			if err != nil {
				return nil, err
			}
		case merkletrie.Delete:
			name = ch.From.String()
		}

		if len(files) > 0 {
			contains := inFiles(filesMap, name)
			if !contains {
				continue
			}
		}

		b.Remove(name)
		removedFiles = append(removedFiles, name)
		if e == nil {
			continue
		}

		b.Add(&index.Entry{
			Name: name,
			Hash: e.Hash,
			Mode: e.Mode,
		})

	}

	b.Write(idx)