[PATCH] Operations on refs
[git/git.git] / refs.h
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95fc7512
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1#ifndef REFS_H
2#define REFS_H
3
4/** Reads the refs file specified into sha1 **/
5extern 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 **/
10extern 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. **/
13extern int write_ref_sha1(const char *ref, int fd, const unsigned char *sha1);
14
15/** Writes sha1 into the refs file specified. **/
16extern 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. **/
19extern int check_ref_format(const char *target);
20
21#endif /* REFS_H */