1#ifndef TREE_WALK_H
2#define TREE_WALK_H
3
4struct name_entry {
5 const unsigned char *sha1;
6 const char *path;
7 unsigned int mode;
8};
9
10struct tree_desc {
11 const void *buffer;
12 struct name_entry entry;
13 unsigned int size;
14};
15
16static inline const unsigned char *tree_entry_extract(struct tree_desc *desc, const char **pathp, unsigned int *modep)
17{
18 *pathp = desc->entry.path;
19 *modep = canon_mode(desc->entry.mode);
20 return desc->entry.sha1;
21}
22
23static inline int tree_entry_len(const char *name, const unsigned char *sha1)
24{
25 return (char *)sha1 - (char *)name - 1;
26}
27
28void update_tree_entry(struct tree_desc *);
29void init_tree_desc(struct tree_desc *desc, const void *buf, unsigned long size);
30const unsigned char *tree_entry_extract(struct tree_desc *, const char **, unsigned int *);
31
32/* Helper function that does both of the above and returns true for success */
33int tree_entry(struct tree_desc *, struct name_entry *);
34
35void *fill_tree_descriptor(struct tree_desc *desc, const unsigned char *sha1);
36
37typedef void (*traverse_callback_t)(int n, unsigned long mask, struct name_entry *entry, const char *base);
38
39void traverse_trees(int n, struct tree_desc *t, const char *base, traverse_callback_t callback);
40
41int get_tree_entry(const unsigned char *, const char *, unsigned char *, unsigned *);
42
43#endif