Andrew's git - gitweb.git/blob

   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 (const char *)sha1 - 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);
  30
  31/* Helper function that does both of the above and returns true for success */
  32int tree_entry(struct tree_desc *, struct name_entry *);
  33
  34void *fill_tree_descriptor(struct tree_desc *desc, const unsigned char *sha1);
  35
  36struct traverse_info;
  37typedef int (*traverse_callback_t)(int n, unsigned long mask, unsigned long dirmask, struct name_entry *entry, struct traverse_info *);
  38int traverse_trees(int n, struct tree_desc *t, struct traverse_info *info);
  39
  40struct 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};
  49
  50int get_tree_entry(const unsigned char *, const char *, unsigned char *, unsigned *);
  51extern char *make_traverse_path(char *path, const struct traverse_info *info, const struct name_entry *n);
  52extern void setup_traverse_info(struct traverse_info *info, const char *base);
  53
  54static inline int traverse_path_len(const struct traverse_info *info, const struct name_entry *n)
  55{
  56        return info->pathlen + tree_entry_len(n->path, n->sha1);
  57}
  58
  59#endif