[PATCH 03/15] cache: add an algo member to struct object_id

["brian m. carlson" <sandals@xxxxxxxxxxxxxxxxxxxx>]

Now that we're working with multiple hash algorithms in the same repo,
it's best if we label each object ID with its algorithm so we can
determine how to format a given object ID. Add a member called algo to
struct object_id.

Signed-off-by: brian m. carlson <sandals@xxxxxxxxxxxxxxxxxxxx>
---
 hash.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hash.h b/hash.h
index 3fb0c3d400..dafdcb3335 100644
--- a/hash.h
+++ b/hash.h
@@ -181,6 +181,7 @@ static inline int hash_algo_by_ptr(const struct git_hash_algo *p)
 
 struct object_id {
 	unsigned char hash[GIT_MAX_RAWSZ];
+	int algo;
 };
 
 #define the_hash_algo the_repository->hash_algo