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Merge branch 'jt/batch-fetch-blobs-in-diff'

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While running "git diff" in a lazy clone, we can upfront know which
missing blobs we will need, instead of waiting for the on-demand
machinery to discover them one by one.  Aim to achieve better
performance by batching the request for these promised blobs.

* jt/batch-fetch-blobs-in-diff:
  diff: batch fetching of missing blobs
  sha1-file: support OBJECT_INFO_FOR_PREFETCH
This commit is contained in:
Junio C Hamano
2019-04-25 16:41:19 +09:00
parent ac70c53133 7fbbcb21b1
commit 32dc15dec1
5 changed files with 154 additions and 9 deletions
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17
unpack-trees.c
View File

@ -406,20 +406,21 @@ static int check_updates(struct unpack_trees_options *o)
* below.
*/
struct oid_array to_fetch = OID_ARRAY_INIT;
int fetch_if_missing_store = fetch_if_missing;
fetch_if_missing = 0;
for (i = 0; i < index->cache_nr; i++) {
struct cache_entry *ce = index->cache[i];
if ((ce->ce_flags & CE_UPDATE) &&
!S_ISGITLINK(ce->ce_mode)) {
if (!has_object_file(&ce->oid))
oid_array_append(&to_fetch, &ce->oid);
}
if (!(ce->ce_flags & CE_UPDATE) ||
S_ISGITLINK(ce->ce_mode))
continue;
if (!oid_object_info_extended(the_repository, &ce->oid,
NULL,
OBJECT_INFO_FOR_PREFETCH))
continue;
oid_array_append(&to_fetch, &ce->oid);
}
if (to_fetch.nr)
fetch_objects(repository_format_partial_clone,
to_fetch.oid, to_fetch.nr);
fetch_if_missing = fetch_if_missing_store;
oid_array_clear(&to_fetch);
}
for (i = 0; i < index->cache_nr; i++) {