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 */