refs.h

   1 #ifndef REFS_H
   2 #define REFS_H
   3
   4 /*
   5  * Calls the specified function for each ref file until it returns nonzero,
   6  * and returns the value
   7  */
   8 extern int for_each_ref(int (*fn)(const char *path, const unsigned char *sha1));
   9
  10 /** Reads the refs file specified into sha1 **/
  11 extern int get_ref_sha1(const char *ref, unsigned char *sha1);
  12
  13 /** Locks ref and returns the fd to give to write_ref_sha1() if the ref
  14  * has the given value currently; otherwise, returns -1.
  15  **/
  16 extern int lock_ref_sha1(const char *ref, const unsigned char *old_sha1);
  17
  18 /** Writes sha1 into the refs file specified, locked with the given fd. **/
  19 extern int write_ref_sha1(const char *ref, int fd, const unsigned char *sha1);
  20
  21 /** Writes sha1 into the refs file specified. **/
  22 extern int write_ref_sha1_unlocked(const char *ref, const unsigned char *sha1);
  23
  24 /** Returns 0 if target has the right format for a ref. **/
  25 extern int check_ref_format(const char *target);
  26
  27 #endif /* REFS_H */