1 files changed, 39 insertions, 6 deletions
diff --git a/refs.h b/refs.h
index fe7f0db35e..0ecba21b4a 100644
--- a/refs.h
+++ b/refs.h
@@ -2,17 +2,17 @@
 #define REFS_H
 
 #include "commit.h"
+#include "repository.h"
 
 struct object_id;
 struct ref_store;
-struct repository;
 struct strbuf;
 struct string_list;
 struct string_list_item;
 struct worktree;
 
-unsigned int ref_storage_format_by_name(const char *name);
-const char *ref_storage_format_to_name(unsigned int ref_storage_format);
+enum ref_storage_format ref_storage_format_by_name(const char *name);
+const char *ref_storage_format_to_name(enum ref_storage_format ref_storage_format);
 
 /*
  * Resolve a reference, recursively following symbolic refererences.
@@ -124,6 +124,11 @@ int ref_store_create_on_disk(struct ref_store *refs, int flags, struct strbuf *e
 void ref_store_release(struct ref_store *ref_store);
 
 /*
+ * Remove the ref store from disk. This deletes all associated data.
+ */
+int ref_store_remove_on_disk(struct ref_store *refs, struct strbuf *err);
+
+/*
  * Return the peeled value of the oid currently being iterated via
  * for_each_ref(), etc. This is equivalent to calling:
  *
@@ -654,12 +659,18 @@ struct ref_transaction *ref_store_transaction_begin(struct ref_store *refs,
 #define REF_SKIP_REFNAME_VERIFICATION (1 << 11)
 
 /*
+ * Skip creation of a reflog entry, even if it would have otherwise been
+ * created.
+ */
+#define REF_SKIP_CREATE_REFLOG (1 << 12)
+
+/*
  * Bitmask of all of the flags that are allowed to be passed in to
  * ref_transaction_update() and friends:
  */
 #define REF_TRANSACTION_UPDATE_ALLOWED_FLAGS                                  \
 	(REF_NO_DEREF | REF_FORCE_CREATE_REFLOG | REF_SKIP_OID_VERIFICATION | \
-	 REF_SKIP_REFNAME_VERIFICATION)
+	 REF_SKIP_REFNAME_VERIFICATION | REF_SKIP_CREATE_REFLOG)
 
 /*
  * Add a reference update to transaction. `new_oid` is the value that
@@ -700,6 +711,7 @@ int ref_transaction_update(struct ref_transaction *transaction,
 int ref_transaction_create(struct ref_transaction *transaction,
 			   const char *refname,
 			   const struct object_id *new_oid,
+			   const char *new_target,
 			   unsigned int flags, const char *msg,
 			   struct strbuf *err);
 
@@ -714,7 +726,9 @@ int ref_transaction_create(struct ref_transaction *transaction,
 int ref_transaction_delete(struct ref_transaction *transaction,
 			   const char *refname,
 			   const struct object_id *old_oid,
-			   unsigned int flags, const char *msg,
+			   const char *old_target,
+			   unsigned int flags,
+			   const char *msg,
 			   struct strbuf *err);
 
 /*
@@ -728,6 +742,7 @@ int ref_transaction_delete(struct ref_transaction *transaction,
 int ref_transaction_verify(struct ref_transaction *transaction,
 			   const char *refname,
 			   const struct object_id *old_oid,
+			   const char *old_target,
 			   unsigned int flags,
 			   struct strbuf *err);
 
@@ -968,7 +983,7 @@ struct ref_store *get_worktree_ref_store(const struct worktree *wt);
  */
 
 struct ref_namespace_info {
-	char *ref;
+	const char *ref;
 	enum decoration_type decoration;
 
 	/*
@@ -1054,6 +1069,24 @@ int is_root_ref(const char *refname);
 int is_pseudo_ref(const char *refname);
 
 /*
+ * The following flags can be passed to `repo_migrate_ref_storage_format()`:
+ *
+ *   - REPO_MIGRATE_REF_STORAGE_FORMAT_DRYRUN: perform a dry-run migration
+ *     without touching the main repository. The result will be written into a
+ *     temporary ref storage directory.
+ */
+#define REPO_MIGRATE_REF_STORAGE_FORMAT_DRYRUN (1 << 0)
+
+/*
+ * Migrate the ref storage format used by the repository to the
+ * specified one.
+ */
+int repo_migrate_ref_storage_format(struct repository *repo,
+				    enum ref_storage_format format,
+				    unsigned int flags,
+				    struct strbuf *err);
+
+/*
  * The following functions have been removed in Git v2.45 in favor of functions
  * that receive a `ref_store` as parameter. The intent of this section is
  * merely to help patch authors of in-flight series to have a reference what