X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=refs.h;h=6eb98a4caf150776c26fb04699133b1a976d0122;hb=08fbb136f7440eac96f4e4396316aff36526f299;hp=fa816c1e9f58ca1ab1c1b434b01786a0f3b0a41e;hpb=0825de892f1796e6ca6ac81e0af10f6c136a9f1d;p=git.git

diff --git a/refs.h b/refs.h
index fa816c1e9..6eb98a4ca 100644
--- a/refs.h
+++ b/refs.h
@@ -1,31 +1,73 @@
 #ifndef REFS_H
 #define REFS_H
 
+struct ref_lock {
+	char *ref_name;
+	char *orig_ref_name;
+	struct lock_file *lk;
+	unsigned char old_sha1[20];
+	int lock_fd;
+	int force_write;
+};
+
+#define REF_ISSYMREF 01
+#define REF_ISPACKED 02
+
 /*
  * Calls the specified function for each ref file until it returns nonzero,
  * and returns the value
  */
-extern int head_ref(int (*fn)(const char *path, const unsigned char *sha1));
-extern int for_each_ref(int (*fn)(const char *path, const unsigned char *sha1));
-extern int for_each_tag_ref(int (*fn)(const char *path, const unsigned char *sha1));
-extern int for_each_branch_ref(int (*fn)(const char *path, const unsigned char *sha1));
-extern int for_each_remote_ref(int (*fn)(const char *path, const unsigned char *sha1));
+typedef int each_ref_fn(const char *refname, const unsigned char *sha1, int flags, void *cb_data);
+extern int head_ref(each_ref_fn, void *);
+extern int for_each_ref(each_ref_fn, void *);
+extern int for_each_tag_ref(each_ref_fn, void *);
+extern int for_each_branch_ref(each_ref_fn, void *);
+extern int for_each_remote_ref(each_ref_fn, void *);
+
+extern int peel_ref(const char *, unsigned char *);
 
 /** Reads the refs file specified into sha1 **/
 extern int get_ref_sha1(const char *ref, unsigned char *sha1);
 
-/** Locks ref and returns the fd to give to write_ref_sha1() if the ref
- * has the given value currently; otherwise, returns -1.
- **/
-extern int lock_ref_sha1(const char *ref, const unsigned char *old_sha1);
+/** Locks a "refs/" ref returning the lock on success and NULL on failure. **/
+extern struct ref_lock *lock_ref_sha1(const char *ref, const unsigned char *old_sha1);
+
+/** Locks any ref (for 'HEAD' type refs). */
+#define REF_NODEREF	0x01
+extern struct ref_lock *lock_any_ref_for_update(const char *ref, const unsigned char *old_sha1, int flags);
 
-/** Writes sha1 into the refs file specified, locked with the given fd. **/
-extern int write_ref_sha1(const char *ref, int fd, const unsigned char *sha1);
+/** Release any lock taken but not written. **/
+extern void unlock_ref(struct ref_lock *lock);
 
-/** Writes sha1 into the refs file specified. **/
-extern int write_ref_sha1_unlocked(const char *ref, const unsigned char *sha1);
+/** Writes sha1 into the ref specified by the lock. **/
+extern int write_ref_sha1(struct ref_lock *lock, const unsigned char *sha1, const char *msg);
+
+/** Reads log for the value of ref during at_time. **/
+extern int read_ref_at(const char *ref, unsigned long at_time, int cnt, unsigned char *sha1, char **msg, unsigned long *cutoff_time, int *cutoff_tz, int *cutoff_cnt);
+
+/* iterate over reflog entries */
+typedef int each_reflog_ent_fn(unsigned char *osha1, unsigned char *nsha1, const char *, unsigned long, int, const char *, void *);
+int for_each_reflog_ent(const char *ref, each_reflog_ent_fn fn, void *cb_data);
+
+/*
+ * Calls the specified function for each reflog file until it returns nonzero,
+ * and returns the value
+ */
+extern int for_each_reflog(each_ref_fn, void *);
 
 /** Returns 0 if target has the right format for a ref. **/
 extern int check_ref_format(const char *target);
 
+/** rename ref, return 0 on success **/
+extern int rename_ref(const char *oldref, const char *newref, const char *logmsg);
+
+/** resolve ref in nested "gitlink" repository */
+extern int resolve_gitlink_ref(const char *name, const char *refname, unsigned char *result);
+
+/** lock a ref and then write its file */
+enum action_on_err { MSG_ON_ERR, DIE_ON_ERR, QUIET_ON_ERR };
+int update_ref(const char *action, const char *refname,
+		const unsigned char *sha1, const unsigned char *oldval,
+		int flags, enum action_on_err onerr);
+
 #endif /* REFS_H */