Andrew's git - gitweb.git/blob

   1#ifndef REFS_H
   2#define REFS_H
   3
   4struct ref_lock {
   5        char *ref_file;
   6        char *lock_file;
   7        char *log_file;
   8        unsigned char old_sha1[20];
   9        int lock_fd;
  10        int force_write;
  11};
  12
  13/*
  14 * Calls the specified function for each ref file until it returns nonzero,
  15 * and returns the value
  16 */
  17extern int head_ref(int (*fn)(const char *path, const unsigned char *sha1));
  18extern int for_each_ref(int (*fn)(const char *path, const unsigned char *sha1));
  19extern int for_each_tag_ref(int (*fn)(const char *path, const unsigned char *sha1));
  20extern int for_each_branch_ref(int (*fn)(const char *path, const unsigned char *sha1));
  21extern int for_each_remote_ref(int (*fn)(const char *path, const unsigned char *sha1));
  22
  23/** Reads the refs file specified into sha1 **/
  24extern int get_ref_sha1(const char *ref, unsigned char *sha1);
  25
  26/** Locks a "refs/" ref returning the lock on success and NULL on failure. **/
  27extern struct ref_lock* lock_ref_sha1(const char *ref, const unsigned char *old_sha1, int mustexist);
  28
  29/** Locks any ref (for 'HEAD' type refs). */
  30extern struct ref_lock* lock_any_ref_for_update(const char *ref, const unsigned char *old_sha1, int mustexist);
  31
  32/** Release any lock taken but not written. **/
  33extern void unlock_ref (struct ref_lock *lock);
  34
  35/** Writes sha1 into the ref specified by the lock. **/
  36extern int write_ref_sha1(struct ref_lock *lock, const unsigned char *sha1, const char *msg);
  37
  38/** Reads log for the value of ref during at_time. **/
  39extern int read_ref_at(const char *ref, unsigned long at_time, unsigned char *sha1);
  40
  41/** Returns 0 if target has the right format for a ref. **/
  42extern int check_ref_format(const char *target);
  43
  44#endif /* REFS_H */