#ifndef PACK_H
#define PACK_H
+/*
+ * The packed object type is stored in 3 bits.
+ * The type value 0 is a reserved prefix if ever there is more than 7
+ * object types, or any future format extensions.
+ */
enum object_type {
- OBJ_NONE,
- OBJ_COMMIT,
- OBJ_TREE,
- OBJ_BLOB,
- OBJ_TAG,
- OBJ_DELTA,
+ OBJ_EXT = 0,
+ OBJ_COMMIT = 1,
+ OBJ_TREE = 2,
+ OBJ_BLOB = 3,
+ OBJ_TAG = 4,
+ /* 5/6 for future expansion */
+ OBJ_DELTA = 7,
};
/*
* Packed object header
*/
#define PACK_SIGNATURE 0x5041434b /* "PACK" */
+#define PACK_VERSION 2
+#define pack_version_ok(v) ((v) == htonl(2) || (v) == htonl(3))
struct pack_header {
unsigned int hdr_signature;
unsigned int hdr_version;
unsigned int hdr_entries;
};
+extern int verify_pack(struct packed_git *, int);
+extern int check_reuse_pack_delta(struct packed_git *, unsigned long,
+ unsigned char *, unsigned long *,
+ enum object_type *);
#endif