[PATCH v3 23/24] packfile: skip loading index if in multi-pack-index

[Derrick Stolee]

Signed-off-by: Derrick Stolee <dsto...@microsoft.com>
---
 packfile.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/packfile.c b/packfile.c
index 2c819a0ad8..e6ecf12ab5 100644
--- a/packfile.c
+++ b/packfile.c
@@ -469,8 +469,19 @@ static int open_packed_git_1(struct packed_git *p)
        ssize_t read_result;
        const unsigned hashsz = the_hash_algo->rawsz;
 
-       if (!p->index_data && open_pack_index(p))
-               return error("packfile %s index unavailable", p->pack_name);
+       if (!p->index_data) {
+               struct multi_pack_index *m;
+               const char *pack_name = strrchr(p->pack_name, '/');
+
+               for (m = the_repository->objects->multi_pack_index;
+                    m; m = m->next) {
+                       if (midx_contains_pack(m, pack_name))
+                               break;
+               }
+
+               if (!m && open_pack_index(p))
+                       return error("packfile %s index unavailable", 
p->pack_name);
+       }
 
        if (!pack_max_fds) {
                unsigned int max_fds = get_max_fd_limit();
@@ -521,6 +532,10 @@ static int open_packed_git_1(struct packed_git *p)
                        " supported (try upgrading GIT to a newer version)",
                        p->pack_name, ntohl(hdr.hdr_version));
 
+       /* Skip index checking if in multi-pack-index */
+       if (!p->index_data)
+               return 0;
+
        /* Verify the pack matches its index. */
        if (p->num_objects != ntohl(hdr.hdr_entries))
                return error("packfile %s claims to have %"PRIu32" objects"
-- 
2.18.0.118.gd4f65b8d14