Merge branch 'fix'
[git/git.git] / refs.h
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1#ifndef REFS_H
2#define REFS_H
3
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4/*
5 * Calls the specified function for each ref file until it returns nonzero,
6 * and returns the value
7 */
723c31fe 8extern int head_ref(int (*fn)(const char *path, const unsigned char *sha1));
944d8589 9extern int for_each_ref(int (*fn)(const char *path, const unsigned char *sha1));
8a65ff76 10
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11/** Reads the refs file specified into sha1 **/
12extern int get_ref_sha1(const char *ref, unsigned char *sha1);
13
14/** Locks ref and returns the fd to give to write_ref_sha1() if the ref
15 * has the given value currently; otherwise, returns -1.
16 **/
17extern int lock_ref_sha1(const char *ref, const unsigned char *old_sha1);
18
19/** Writes sha1 into the refs file specified, locked with the given fd. **/
20extern int write_ref_sha1(const char *ref, int fd, const unsigned char *sha1);
21
22/** Writes sha1 into the refs file specified. **/
23extern int write_ref_sha1_unlocked(const char *ref, const unsigned char *sha1);
24
25/** Returns 0 if target has the right format for a ref. **/
26extern int check_ref_format(const char *target);
27
28#endif /* REFS_H */