On Mon, Aug 01, 2016 at 02:12:34PM -0400, Jeff King wrote:
> Before I switched to "reset at the beginning" in my original patch, I
> also noticed this issue, but decided the other way: to only reset after
> a successful creation.
>
> I think in most cases it wouldn't matter anyway, because the caller will
> generally abort as soon as this returns failure anyway. But I wondered
> about something like:
>
> author = prepare_author_info();
> if (commit_tree_extended(..., author, ...) < 0) {
> /* oops, we failed. Do a thing and try again. */
> possible_fix();
> if (commit_tree_extended(..., author, ...) < 0)
> die("giving up");
> }
>
> In the second call (but only the second call!) the committer and author
> can diverge.
To be clear, I checked all of the callers and nobody actually does this.
Every caller proceeds straight to a die() except the one in
notes_cache_write(), which silently ignores error (which is the correct
thing to do).
This is more "it seems like a fragile pattern to me".
-Peff
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