Method addCommit

remote.go:727–762

(rs config.RefSpec,
	remoteRefs storer.ReferenceStorer, localCommit plumbing.Hash,
	req *packp.ReferenceUpdateRequest)

}

func (r *Remote) addCommit(rs config.RefSpec,
	remoteRefs storer.ReferenceStorer, localCommit plumbing.Hash,
	req *packp.ReferenceUpdateRequest) error {

	if rs.IsWildcard() {
		return errors.New("can't use wildcard together with hash refspecs")
	}

	cmd := &packp.Command{
		Name: rs.Dst(""),
		Old:  plumbing.ZeroHash,
		New:  localCommit,
	}
	remoteRef, err := remoteRefs.Reference(cmd.Name)
	if err == nil {
		if remoteRef.Type() != plumbing.HashReference {
			// TODO: check actual git behavior here
			return nil
		}

		cmd.Old = remoteRef.Hash()
	} else if err != plumbing.ErrReferenceNotFound {
		return err
	}
	if cmd.Old == cmd.New {
		return nil
	}
	if !rs.IsForceUpdate() {
		if err := checkFastForwardUpdate(r.s, remoteRefs, cmd); err != nil {
			return err
		}
	}

	req.Commands = append(req.Commands, cmd)
	return nil
}

func (r *Remote) addReferenceIfRefSpecMatches(rs config.RefSpec,
	remoteRefs storer.ReferenceStorer, localRef *plumbing.Reference,