Method doAddFile

worktree_status.go:450–478

doAddFile create a new blob from path and update the index, added is true if the file added is different from the index. if s status is nil will skip the status check and update the index anyway

(idx *index.Index, s Status, path string, ignorePattern []gitignore.Pattern)

// the file added is different from the index.
// if s status is nil will skip the status check and update the index anyway
func (w *Worktree) doAddFile(idx *index.Index, s Status, path string, ignorePattern []gitignore.Pattern) (added bool, h plumbing.Hash, err error) {
	if s != nil && s.File(path).Worktree == Unmodified {
		return false, h, nil
	}
	if len(ignorePattern) > 0 {
		m := gitignore.NewMatcher(ignorePattern)
		matchPath := strings.Split(path, string(os.PathSeparator))
		if m.Match(matchPath, true) {
			// ignore
			return false, h, nil
		}
	}

	h, err = w.copyFileToStorage(path)
	if err != nil {
		if os.IsNotExist(err) {
			added = true
			h, err = w.deleteFromIndex(idx, path)
		}

		return
	}

	if err := w.addOrUpdateFileToIndex(idx, path, h); err != nil {
		return false, h, err
	}

	return true, h, err
}

func (w *Worktree) copyFileToStorage(path string) (hash plumbing.Hash, err error) {
	fi, err := w.Filesystem.Lstat(path)