On 10/11/18 8:54 AM, Junio C Hamano wrote: > Is it a normal situation to have refname==NULL, or is it something > worth reporting as an error?
Looks like that would be in the case of looping symrefs or file backend failure, so seems a good idea to die() in that case. > Without passing the &flag argument, I do not think there is a > reliable way to ask resolve_ref_unsafe() if "HEAD" is a symbolic > ref. If I'm reading the code correctly, resolve_ref_unsafe() will return "HEAD" or NULL if there's no symbolic reference, so anything else would indicate a symref, but even in that case checking the flag explicitly is definitely better to clearly show intent. Will soon reply with v3 cleaning up the suggested patch accordingly.
