Andrew's git / gitweb.git /
0ab6784ffea5da0581c905738aaa66215266b5f9
   1#ifndef CACHE_TREE_H
   2#define CACHE_TREE_H
   3
   4#include "cache.h"
   5#include "tree.h"
   6#include "tree-walk.h"
   7
   8struct cache_tree;
   9struct cache_tree_sub {
  10        struct cache_tree *cache_tree;
  11        int count;              /* internally used by update_one() */
  12        int namelen;
  13        int used;
  14        char name[FLEX_ARRAY];
  15};
  16
  17struct cache_tree {
  18        int entry_count; /* negative means "invalid" */
  19        struct object_id oid;
  20        int subtree_nr;
  21        int subtree_alloc;
  22        struct cache_tree_sub **down;
  23};
  24
  25struct cache_tree *cache_tree(void);
  26void cache_tree_free(struct cache_tree **);
  27void cache_tree_invalidate_path(struct index_state *, const char *);
  28struct cache_tree_sub *cache_tree_sub(struct cache_tree *, const char *);
  29
  30void cache_tree_write(struct strbuf *, struct cache_tree *root);
  31struct cache_tree *cache_tree_read(const char *buffer, unsigned long size);
  32
  33int cache_tree_fully_valid(struct cache_tree *);
  34int cache_tree_update(struct index_state *, int);
  35void cache_tree_verify(struct index_state *);
  36
  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
  42#define WRITE_TREE_REPAIR 16
  43
  44/* error return codes */
  45#define WRITE_TREE_UNREADABLE_INDEX (-1)
  46#define WRITE_TREE_UNMERGED_INDEX (-2)
  47#define WRITE_TREE_PREFIX_ERROR (-3)
  48
  49int write_index_as_tree(struct object_id *oid, struct index_state *index_state, const char *index_path, int flags, const char *prefix);
  50void prime_cache_tree(struct index_state *, struct tree *);
  51
  52int cache_tree_matches_traversal(struct cache_tree *, struct name_entry *ent, struct traverse_info *info);
  53
  54#ifndef NO_THE_INDEX_COMPATIBILITY_MACROS
  55static inline int write_cache_as_tree(struct object_id *oid, int flags, const char *prefix)
  56{
  57        return write_index_as_tree(oid, &the_index, get_index_file(), flags, prefix);
  58}
  59
  60static inline int update_main_cache_tree(int flags)
  61{
  62        if (!the_index.cache_tree)
  63                the_index.cache_tree = cache_tree();
  64        return cache_tree_update(&the_index, flags);
  65}
  66#endif
  67
  68#endif