diff options
| -rw-r--r-- | builtin/pack-objects.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c index c6e2d8766b..8bfe3a6ffb 100644 --- a/builtin/pack-objects.c +++ b/builtin/pack-objects.c @@ -1248,11 +1248,16 @@ static int try_delta(struct unpacked *trg, struct unpacked *src, return -1; /* - * We do not bother to try a delta that we discarded - * on an earlier try, but only when reusing delta data. + * We do not bother to try a delta that we discarded on an + * earlier try, but only when reusing delta data. Note that + * src_entry that is marked as the preferred_base should always + * be considered, as even if we produce a suboptimal delta against + * it, we will still save the transfer cost, as we already know + * the other side has it and we won't send src_entry at all. */ if (reuse_delta && trg_entry->in_pack && trg_entry->in_pack == src_entry->in_pack && + !src_entry->preferred_base && trg_entry->in_pack_type != OBJ_REF_DELTA && trg_entry->in_pack_type != OBJ_OFS_DELTA) return 0; |