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 */
  17#define REF_ISSYMREF 01
  18#define REF_ISPACKED 02
  19typedef int each_ref_fn(const char *refname, const unsigned char *sha1, int flags, void *cb_data);
  20extern int head_ref(each_ref_fn, void *);
  21extern int for_each_ref(each_ref_fn, void *);
  22extern int for_each_tag_ref(each_ref_fn, void *);
  23extern int for_each_branch_ref(each_ref_fn, void *);
  24extern int for_each_remote_ref(each_ref_fn, void *);
  25
  26/** Reads the refs file specified into sha1 **/
  27extern int get_ref_sha1(const char *ref, unsigned char *sha1);
  28
  29/** Locks a "refs/" ref returning the lock on success and NULL on failure. **/
  30extern struct ref_lock *lock_ref_sha1(const char *ref, const unsigned char *old_sha1);
  31
  32/** Locks any ref (for 'HEAD' type refs). */
  33extern struct ref_lock *lock_any_ref_for_update(const char *ref, const unsigned char *old_sha1);
  34
  35/** Release any lock taken but not written. **/
  36extern void unlock_ref(struct ref_lock *lock);
  37
  38/** Writes sha1 into the ref specified by the lock. **/
  39extern int write_ref_sha1(struct ref_lock *lock, const unsigned char *sha1, const char *msg);
  40
  41/** Reads log for the value of ref during at_time. **/
  42extern int read_ref_at(const char *ref, unsigned long at_time, int cnt, unsigned char *sha1);
  43
  44/** Returns 0 if target has the right format for a ref. **/
  45extern int check_ref_format(const char *target);
  46
  47#endif /* REFS_H */