multi-pack-index: add 'verify' verb

The multi-pack-index builtin writes multi-pack-index files, and
uses a 'write' verb to do so. Add a 'verify' verb that checks this
file matches the contents of the pack-indexes it replaces.

The current implementation is a no-op, but will be extended in
small increments in later commits.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/midx.h b/midx.h
index a210f1af2a..ce80b91c68 100644
--- a/midx.h
+++ b/midx.h
@@ -43,5 +43,6 @@ int prepare_multi_pack_index_one(struct repository *r, const char *object_dir, i
 
 int write_midx_file(const char *object_dir);
 void clear_midx_file(const char *object_dir);
+int verify_midx_file(const char *object_dir);
 
 #endif