1
0
Fork 0
mirror of https://github.com/git/git.git synced 2024-05-08 13:16:09 +02:00
git/cache-tree.h
Elijah Newren 724dd767b2 cache-tree: share code between functions writing an index as a tree
write_tree_from_memory() appeared to be a merge-recursive special that
basically duplicated write_index_as_tree().  The two have a different
signature, but the bigger difference was just that write_index_as_tree()
would always unconditionally read the index off of disk instead of
working on the current in-memory index.  So:

  * split out common code into write_index_as_tree_internal()

  * rename write_tree_from_memory() to write_inmemory_index_as_tree(),
    make it call write_index_as_tree_internal(), and move it to
    cache-tree.c

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-19 10:08:03 -07:00

70 lines
2.1 KiB
C

#ifndef CACHE_TREE_H
#define CACHE_TREE_H
#include "cache.h"
#include "tree.h"
#include "tree-walk.h"
struct cache_tree;
struct cache_tree_sub {
struct cache_tree *cache_tree;
int count; /* internally used by update_one() */
int namelen;
int used;
char name[FLEX_ARRAY];
};
struct cache_tree {
int entry_count; /* negative means "invalid" */
struct object_id oid;
int subtree_nr;
int subtree_alloc;
struct cache_tree_sub **down;
};
struct cache_tree *cache_tree(void);
void cache_tree_free(struct cache_tree **);
void cache_tree_invalidate_path(struct index_state *, const char *);
struct cache_tree_sub *cache_tree_sub(struct cache_tree *, const char *);
void cache_tree_write(struct strbuf *, struct cache_tree *root);
struct cache_tree *cache_tree_read(const char *buffer, unsigned long size);
int cache_tree_fully_valid(struct cache_tree *);
int cache_tree_update(struct index_state *, int);
void cache_tree_verify(struct repository *, struct index_state *);
/* bitmasks to write_index_as_tree flags */
#define WRITE_TREE_MISSING_OK 1
#define WRITE_TREE_IGNORE_CACHE_TREE 2
#define WRITE_TREE_DRY_RUN 4
#define WRITE_TREE_SILENT 8
#define WRITE_TREE_REPAIR 16
/* error return codes */
#define WRITE_TREE_UNREADABLE_INDEX (-1)
#define WRITE_TREE_UNMERGED_INDEX (-2)
#define WRITE_TREE_PREFIX_ERROR (-3)
struct tree* write_in_core_index_as_tree(struct repository *repo);
int write_index_as_tree(struct object_id *oid, struct index_state *index_state, const char *index_path, int flags, const char *prefix);
void prime_cache_tree(struct repository *, struct index_state *, struct tree *);
int cache_tree_matches_traversal(struct cache_tree *, struct name_entry *ent, struct traverse_info *info);
#ifdef USE_THE_INDEX_COMPATIBILITY_MACROS
static inline int write_cache_as_tree(struct object_id *oid, int flags, const char *prefix)
{
return write_index_as_tree(oid, &the_index, get_index_file(), flags, prefix);
}
static inline int update_main_cache_tree(int flags)
{
if (!the_index.cache_tree)
the_index.cache_tree = cache_tree();
return cache_tree_update(&the_index, flags);
}
#endif
#endif