Andrew's git - gitweb.git/blob

   1#ifndef REFS_H
   2#define REFS_H
   3
   4struct ref_lock {
   5        char *ref_name;
   6        char *log_file;
   7        struct lock_file *lk;
   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 */
  17typedef int each_ref_fn(const char *refname, const unsigned char *sha1, void *cb_data);
  18extern int head_ref(each_ref_fn, void *);
  19extern int for_each_ref(each_ref_fn, void *);
  20extern int for_each_tag_ref(each_ref_fn, void *);
  21extern int for_each_branch_ref(each_ref_fn, void *);
  22extern int for_each_remote_ref(each_ref_fn, void *);
  23
  24/** Reads the refs file specified into sha1 **/
  25extern int get_ref_sha1(const char *ref, unsigned char *sha1);
  26
  27/** Locks a "refs/" ref returning the lock on success and NULL on failure. **/
  28extern struct ref_lock *lock_ref_sha1(const char *ref, const unsigned char *old_sha1, int mustexist);
  29
  30/** Locks any ref (for 'HEAD' type refs). */
  31extern struct ref_lock *lock_any_ref_for_update(const char *ref, const unsigned char *old_sha1, int mustexist);
  32
  33/** Release any lock taken but not written. **/
  34extern void unlock_ref(struct ref_lock *lock);
  35
  36/** Writes sha1 into the ref specified by the lock. **/
  37extern int write_ref_sha1(struct ref_lock *lock, const unsigned char *sha1, const char *msg);
  38
  39/** Reads log for the value of ref during at_time. **/
  40extern int read_ref_at(const char *ref, unsigned long at_time, unsigned char *sha1);
  41
  42/** Returns 0 if target has the right format for a ref. **/
  43extern int check_ref_format(const char *target);
  44
  45#endif /* REFS_H */