fetch: pass ref prefixes when fetching

Construct a list of ref prefixes to be passed to 'transport_get_remote_refs()' from the refspec to be used during the fetch. This list of ref prefixes will be used to allow the server to filter the ref advertisement when communicating using protocol v2. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Brandon Williams committed Mar 15, 2018 at 10:31 UTC 230d7dd3917b80d94bf8d522b220d587634f1885
1 file changed +18 -1
builtin/fetch.c
+18 -1
@@ -332,11 +332,28 @@ static struct ref *get_ref_map(struct transport *transport,
332 struct ref *rm;
333 struct ref *ref_map = NULL;
334 struct ref **tail = &ref_map;
335 + struct argv_array ref_prefixes = ARGV_ARRAY_INIT;
336
337 /* opportunistically-updated references: */
338 struct ref *orefs = NULL, **oref_tail = &orefs;
339
339 - const struct ref *remote_refs = transport_get_remote_refs(transport, NULL);
340 + const struct ref *remote_refs;
341 +
342 + for (i = 0; i < refspec_count; i++) {
343 + if (!refspecs[i].exact_sha1) {
344 + const char *glob = strchr(refspecs[i].src, '*');
345 + if (glob)
346 + argv_array_pushf(&ref_prefixes, "%.*s",
347 + (int)(glob - refspecs[i].src),
348 + refspecs[i].src);
349 + else
350 + expand_ref_prefix(&ref_prefixes, refspecs[i].src);
351 + }
352 + }
353 +
354 + remote_refs = transport_get_remote_refs(transport, &ref_prefixes);
355 +
356 + argv_array_clear(&ref_prefixes);
357
358 if (refspec_count) {
359 struct refspec *fetch_refspec;