Matt McCutchen <m...@mattmccutchen.net> writes:

> Currently "git fetch REMOTE SHA1" silently exits 1 if the server doesn't
> allow requests for unadvertised objects by sha1.  The more common case
> of requesting a nonexistent ref normally triggers a die() in
> get_fetch_map, so "git fetch" wasn't bothering to check after the fetch
> that it got all the refs it sought, like "git fetch-pack" does near the
> end of cmd_fetch_pack.
>
> Move the code from cmd_fetch_pack to a new function,
> report_unmatched_refs, that is called by fetch_refs_via_pack as part of
> "git fetch".  Also, change filter_refs (which checks whether a request
> for an unadvertised object should be sent to the server) to set a new
> match status on the "struct ref" when the request is not allowed, and
> have report_unmatched_refs check for this status and print a special
> error message, "Server does not allow request for unadvertised object".
>
> Finally, add a simple test case for "git fetch REMOTE SHA1".
>
> Signed-off-by: Matt McCutchen <m...@mattmccutchen.net>
> ---

Hmph, I would have expected this to be done as a three-patch series,

 * move the loop at the end of cmd_fetch_pack() to a separate helper
   function report_unmatched_refs() and call it;

 * add a call to report_unmatched_refs() to the transport layer;

 * enhance report_unmatched_refs() by introducing match_status
   field and adding new code to filter_refs() to diagnose other
   kinds of errors.

The result looks reasonable from a cursory read, though.

Thanks for following it up to the completion.

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