Sync with maint
[alt-git.git] / cache-tree.h
blob55d0f59f2b7a42b40fe4be32297b56656206983d
1 #ifndef CACHE_TREE_H
2 #define CACHE_TREE_H
4 #include "tree.h"
5 #include "tree-walk.h"
7 struct cache_tree;
8 struct cache_tree_sub {
9 struct cache_tree *cache_tree;
10 int count; /* internally used by update_one() */
11 int namelen;
12 int used;
13 char name[FLEX_ARRAY];
16 struct cache_tree {
17 int entry_count; /* negative means "invalid" */
18 unsigned char sha1[20];
19 int subtree_nr;
20 int subtree_alloc;
21 struct cache_tree_sub **down;
24 struct cache_tree *cache_tree(void);
25 void cache_tree_free(struct cache_tree **);
26 void cache_tree_invalidate_path(struct cache_tree *, const char *);
27 struct cache_tree_sub *cache_tree_sub(struct cache_tree *, const char *);
29 void cache_tree_write(struct strbuf *, struct cache_tree *root);
30 struct cache_tree *cache_tree_read(const char *buffer, unsigned long size);
32 int cache_tree_fully_valid(struct cache_tree *);
33 int cache_tree_update(struct cache_tree *, struct cache_entry **, int, int);
35 int update_main_cache_tree(int);
37 /* bitmasks to write_cache_as_tree flags */
38 #define WRITE_TREE_MISSING_OK 1
39 #define WRITE_TREE_IGNORE_CACHE_TREE 2
40 #define WRITE_TREE_DRY_RUN 4
41 #define WRITE_TREE_SILENT 8
43 /* error return codes */
44 #define WRITE_TREE_UNREADABLE_INDEX (-1)
45 #define WRITE_TREE_UNMERGED_INDEX (-2)
46 #define WRITE_TREE_PREFIX_ERROR (-3)
48 int write_cache_as_tree(unsigned char *sha1, int flags, const char *prefix);
49 void prime_cache_tree(struct cache_tree **, struct tree *);
51 extern int cache_tree_matches_traversal(struct cache_tree *, struct name_entry *ent, struct traverse_info *info);
53 #endif