replace-object: allow prepare_replace_object to handle arbitrary repositories
[git/git.git] / replace-object.h
... / ...
CommitLineData
1#ifndef REPLACE_OBJECT_H
2#define REPLACE_OBJECT_H
3
4#include "oidmap.h"
5#include "repository.h"
6#include "object-store.h"
7
8struct replace_object {
9 struct oidmap_entry original;
10 struct object_id replacement;
11};
12
13/*
14 * This internal function is only declared here for the benefit of
15 * lookup_replace_object(). Please do not call it directly.
16 */
17#define do_lookup_replace_object(r, s) do_lookup_replace_object_##r(s)
18extern const struct object_id *do_lookup_replace_object_the_repository(const struct object_id *oid);
19
20/*
21 * If object sha1 should be replaced, return the replacement object's
22 * name (replaced recursively, if necessary). The return value is
23 * either sha1 or a pointer to a permanently-allocated value. When
24 * object replacement is suppressed, always return sha1.
25 */
26#define lookup_replace_object(r, s) lookup_replace_object_##r(s)
27static inline const struct object_id *lookup_replace_object_the_repository(const struct object_id *oid)
28{
29 if (!check_replace_refs ||
30 (the_repository->objects->replace_map &&
31 the_repository->objects->replace_map->map.tablesize == 0))
32 return oid;
33 return do_lookup_replace_object(the_repository, oid);
34}
35
36#endif /* REPLACE_OBJECT_H */