Function NewObjectHeaderIter

git/obj_head_iter.go:23–37

NewObjectHeaderIter returns an `ObjectHeaderIter` that iterates over the headers in a commit or tag object. `data` should be the object's contents, which is usually terminated by a blank line that separates the header from the comment. However, annotated tags don't always include comments, and Git e

(name string, data []byte)

// without comments, so don't insist on a blank line. `name` is used
// in error messages.
func NewObjectHeaderIter(name string, data []byte) (ObjectHeaderIter, error) {
	headerEnd := bytes.Index(data, []byte("\n\n"))
	if headerEnd == -1 {
		if len(data) == 0 {
			return ObjectHeaderIter{}, fmt.Errorf("%s has zero length", name)
		}

		if data[len(data)-1] != '\n' {
			return ObjectHeaderIter{}, fmt.Errorf("%s has no terminating LF", name)
		}

		return ObjectHeaderIter{name, string(data)}, nil
	}
	return ObjectHeaderIter{name, string(data[:headerEnd+1])}, nil
}

// HasNext returns true iff there are more headers to retrieve.
func (iter *ObjectHeaderIter) HasNext() bool {