1#ifndef REFS_H 2#define REFS_H 3 4/** Reads the refs file specified into sha1 **/ 5externintget_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 **/ 10externintlock_ref_sha1(const char*ref,const unsigned char*old_sha1); 11 12/** Writes sha1 into the refs file specified, locked with the given fd. **/ 13externintwrite_ref_sha1(const char*ref,int fd,const unsigned char*sha1); 14 15/** Writes sha1 into the refs file specified. **/ 16externintwrite_ref_sha1_unlocked(const char*ref,const unsigned char*sha1); 17 18/** Returns 0 if target has the right format for a ref. **/ 19externintcheck_ref_format(const char*target); 20 21#endif/* REFS_H */