[PATCH] Operations on refs
[git/git.git] / refs.h
1 #ifndef REFS_H
2 #define REFS_H
3
4 /** Reads the refs file specified into sha1 **/
5 extern int get_ref_sha1(const char *ref, unsigned char *sha1);
6
7 /** Locks ref and returns the fd to give to write_ref_sha1() if the ref
8 * has the given value currently; otherwise, returns -1.
9 **/
10 extern int lock_ref_sha1(const char *ref, const unsigned char *old_sha1);
11
12 /** Writes sha1 into the refs file specified, locked with the given fd. **/
13 extern int write_ref_sha1(const char *ref, int fd, const unsigned char *sha1);
14
15 /** Writes sha1 into the refs file specified. **/
16 extern int write_ref_sha1_unlocked(const char *ref, const unsigned char *sha1);
17
18 /** Returns 0 if target has the right format for a ref. **/
19 extern int check_ref_format(const char *target);
20
21 #endif /* REFS_H */