refs: split log_ref_write logic into log_ref_setup
Separation of the logic for testing and preparing the reflogs from
function log_ref_write to a new non static new function: log_ref_setup.
This allows to be performed from outside the first all reasonable checks
and procedures for writing reflogs.
Signed-off-by: Erick Mattos <erick.mattos@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/refs.h b/refs.h
index 4a18b08..594c9d9 100644
--- a/refs.h
+++ b/refs.h
@@ -68,6 +68,9 @@
/** 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);
+/** Setup reflog before using. **/
+int log_ref_setup(const char *ref_name, char **log_file);
+
/** 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);
