refs: expose a way to ensure a ref has a log

Sometimes (e.g. stash) we want to make sure that a log will be written,
even if it's not in one of the standard locations. Let's make that
easier.

1 files changed, 12 insertions, 0 deletions

diff --git a/include/git2/refs.h b/include/git2/refs.h
index 2dc137692..31bf997fe 100644
--- a/include/git2/refs.h
+++ b/include/git2/refs.h
@@ -556,6 +556,18 @@ GIT_EXTERN(int) git_reference_foreach_glob(
 GIT_EXTERN(int) git_reference_has_log(git_reference *ref);
 
 /**
+ * Ensure there is a reflog for a particular reference.
+ *
+ * Make sure that successive updates to the reference will append to
+ * its log.
+ *
+ * @param repo the repository
+ * @param refname the reference's name
+ * @return 0 or an error code.
+ */
+GIT_EXTERN(int) git_reference_ensure_log(git_repository *repo, const char *refname);
+
+/**
  * Check if a reference is a local branch.
  *
  * @param ref A git reference