From: Han-Wen Nienhuys <hanwen@xxxxxxxxxx>
This will simplify referencing them from code that is not deeply integrated with
Git, in particular, the reftable library.
Signed-off-by: Han-Wen Nienhuys <hanwen@xxxxxxxxxx>
---
hash.h | 6 ++++++
object-file.c | 6 ++----
2 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/hash.h b/hash.h
index 3fb0c3d4005a..b17fb2927711 100644
--- a/hash.h
+++ b/hash.h
@@ -161,12 +161,18 @@ static inline int hash_algo_by_ptr(const struct git_hash_algo *p)
return p - hash_algos;
}
+/* "sha1", big-endian */
+#define GIT_SHA1_HASH_ID 0x73686131
+
/* The length in bytes and in hex digits of an object name (SHA-1 value). */
#define GIT_SHA1_RAWSZ 20
#define GIT_SHA1_HEXSZ (2 * GIT_SHA1_RAWSZ)
/* The block size of SHA-1. */
#define GIT_SHA1_BLKSZ 64
+/* "s256", big-endian */
+#define GIT_SHA256_HASH_ID 0x73323536
+
/* The length in bytes and in hex digits of an object name (SHA-256 value). */
#define GIT_SHA256_RAWSZ 32
#define GIT_SHA256_HEXSZ (2 * GIT_SHA256_RAWSZ)
diff --git a/object-file.c b/object-file.c
index 624af408cdcd..5af384a8cfc4 100644
--- a/object-file.c
+++ b/object-file.c
@@ -146,8 +146,7 @@ const struct git_hash_algo hash_algos[GIT_HASH_NALGOS] = {
},
{
"sha1",
- /* "sha1", big-endian */
- 0x73686131,
+ GIT_SHA1_HASH_ID,
GIT_SHA1_RAWSZ,
GIT_SHA1_HEXSZ,
GIT_SHA1_BLKSZ,
@@ -160,8 +159,7 @@ const struct git_hash_algo hash_algos[GIT_HASH_NALGOS] = {
},
{
"sha256",
- /* "s256", big-endian */
- 0x73323536,
+ GIT_SHA256_HASH_ID,
GIT_SHA256_RAWSZ,
GIT_SHA256_HEXSZ,
GIT_SHA256_BLKSZ,
--
gitgitgadget
