On Fri, May 13, 2016 at 02:35:40PM +0200, Michael Haggerty wrote:
> + if (read_raw_ref(refname, lock->old_oid.hash, referent, type)) {
> + if (errno == ENOENT) {
> + if (mustexist) {
> + /* Garden variety missing reference. */
> + strbuf_addf(err, "unable to resolve reference
> '%s'",
> + refname);
> + goto error_return;
> + } else {
> + /*
> + * Reference is missing, but that's OK. We
> + * know that there is not a conflict with
> + * another loose reference because
> + * (supposing that we are trying to lock
> + * reference "refs/foo/bar"):
> + *
> + * - We were successfully able to create
> + * the lockfile refs/foo/bar.lock, so we
> + * know there cannot be a loose reference
> + * named "refs/foo".
> + *
> + * - We got ENOENT and not EISDIR, so we
> + * know that there cannot be a loose
> + * reference named "refs/foo/bar/baz".
> + */
> + }
Thanks for this comment, I think it makes the logic easier to follow.
I re-ran t5551 and confirmed that the timings look good (though I
imagine you might have already done that, too :) ).
-Peff
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