pack: move nth_packed_object_{sha1,oid}

[thirdparty/git.git] / packfile.h

diff --git a/packfile.h b/packfile.h
index 6a8d46c8519eab46faffcc29b116552c75d96fe2..790b174cb33ed4e9376805143828bd42d8a2cd6c 100644 (file)
--- a/packfile.h
+++ b/packfile.h
@@ -63,6 +63,21 @@ extern void unuse_pack(struct pack_window **);
 extern void clear_delta_base_cache(void);
 extern struct packed_git *add_packed_git(const char *path, size_t path_len, int local);
 
+/*
+ * Return the SHA-1 of the nth object within the specified packfile.
+ * Open the index if it is not already open.  The return value points
+ * at the SHA-1 within the mmapped index.  Return NULL if there is an
+ * error.
+ */
+extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t n);
+/*
+ * Like nth_packed_object_sha1, but write the data into the object specified by
+ * the the first argument.  Returns the first argument on success, and NULL on
+ * error.
+ */
+extern const struct object_id *nth_packed_object_oid(struct object_id *, struct packed_git *, uint32_t n);
+
+
 extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *);
 extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep);
 extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t);
@@ -79,5 +94,4 @@ extern int packed_object_info(struct packed_git *pack, off_t offset, struct obje
 
 extern void mark_bad_packed_object(struct packed_git *p, const unsigned char *sha1);
 extern const struct packed_git *has_packed_and_bad(const unsigned char *sha1);
-
 #endif