Merge branch 'jt/cache-tree-avoid-lazy-fetch-during-merge'
[git/git.git] / replace-object.h
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
8 struct replace_object {
9 struct oidmap_entry original;
10 struct object_id replacement;
11 };
12
13 void prepare_replace_object(struct repository *r);
14
15 /*
16 * This internal function is only declared here for the benefit of
17 * lookup_replace_object(). Please do not call it directly.
18 */
19 const struct object_id *do_lookup_replace_object(struct repository *r,
20 const struct object_id *oid);
21
22 /*
23 * If object sha1 should be replaced, return the replacement object's
24 * name (replaced recursively, if necessary). The return value is
25 * either sha1 or a pointer to a permanently-allocated value. When
26 * object replacement is suppressed, always return sha1.
27 */
28 static inline const struct object_id *lookup_replace_object(struct repository *r,
29 const struct object_id *oid)
30 {
31 if (!read_replace_refs ||
32 (r->objects->replace_map &&
33 r->objects->replace_map->map.tablesize == 0))
34 return oid;
35 return do_lookup_replace_object(r, oid);
36 }
37
38 #endif /* REPLACE_OBJECT_H */