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 static inline enum object_type object_type(unsigned int mode)
  11 {
  12         return S_ISDIR(mode) ? OBJ_TREE :
  13                 S_ISGITLINK(mode) ? OBJ_COMMIT :
  14                 OBJ_BLOB;
  15 }
  16
  17 struct tree_desc {
  18         const void *buffer;
  19         struct name_entry entry;
  20         unsigned int size;
  21 };
  22
  23 static inline const unsigned char *tree_entry_extract(struct tree_desc *desc, const char **pathp, unsigned int *modep)
  24 {
  25         *pathp = desc->entry.path;
  26         *modep = canon_mode(desc->entry.mode);
  27         return desc->entry.sha1;
  28 }
  29
  30 static inline int tree_entry_len(const char *name, const unsigned char *sha1)
  31 {
  32         return (const char *)sha1 - name - 1;
  33 }
  34
  35 void update_tree_entry(struct tree_desc *);
  36 void init_tree_desc(struct tree_desc *desc, const void *buf, unsigned long size);
  37
  38 /* Helper function that does both of the above and returns true for success */
  39 int tree_entry(struct tree_desc *, struct name_entry *);
  40
  41 void *fill_tree_descriptor(struct tree_desc *desc, const unsigned char *sha1);
  42
  43 typedef void (*traverse_callback_t)(int n, unsigned long mask, struct name_entry *entry, const char *base);
  44
  45 void traverse_trees(int n, struct tree_desc *t, const char *base, traverse_callback_t callback);
  46
  47 int get_tree_entry(const unsigned char *, const char *, unsigned char *, unsigned *);
  48
  49 #endif