unpack_trees: group error messages by type
[git/git.git] / tree-walk.h
1 #ifndef TREE_WALK_H
2 #define TREE_WALK_H
3
4 struct name_entry {
5 const unsigned char *sha1;
6 const char *path;
7 unsigned int mode;
8 };
9
10 struct tree_desc {
11 const void *buffer;
12 struct name_entry entry;
13 unsigned int size;
14 };
15
16 static 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
23 static inline int tree_entry_len(const char *name, const unsigned char *sha1)
24 {
25 return (const char *)sha1 - name - 1;
26 }
27
28 void update_tree_entry(struct tree_desc *);
29 void init_tree_desc(struct tree_desc *desc, const void *buf, unsigned long size);
30
31 /* Helper function that does both of the above and returns true for success */
32 int tree_entry(struct tree_desc *, struct name_entry *);
33
34 void *fill_tree_descriptor(struct tree_desc *desc, const unsigned char *sha1);
35
36 struct traverse_info;
37 typedef int (*traverse_callback_t)(int n, unsigned long mask, unsigned long dirmask, struct name_entry *entry, struct traverse_info *);
38 int traverse_trees(int n, struct tree_desc *t, struct traverse_info *info);
39
40 struct traverse_info {
41 struct traverse_info *prev;
42 struct name_entry name;
43 int pathlen;
44
45 unsigned long conflicts;
46 traverse_callback_t fn;
47 void *data;
48 int show_all_errors;
49 };
50
51 int get_tree_entry(const unsigned char *, const char *, unsigned char *, unsigned *);
52 extern char *make_traverse_path(char *path, const struct traverse_info *info, const struct name_entry *n);
53 extern void setup_traverse_info(struct traverse_info *info, const char *base);
54
55 static inline int traverse_path_len(const struct traverse_info *info, const struct name_entry *n)
56 {
57 return info->pathlen + tree_entry_len(n->path, n->sha1);
58 }
59
60 #endif