[PATCH v6 14/27] refs.c: kill register_ref_store(), add register_submodule_ref_store()

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This is the last function in this code (besides public API) that takes
submodule argument and handles both main/submodule cases. Break it down,
move main store registration in get_main_ref_store() and keep the rest
in register_submodule_ref_store().

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
 refs.c | 43 +++++++++++++++++++------------------------
 1 file changed, 19 insertions(+), 24 deletions(-)

diff --git a/refs.c b/refs.c
index f458423301..11c460c5e9 100644
--- a/refs.c
+++ b/refs.c
@@ -1412,29 +1412,6 @@ static struct ref_store *lookup_submodule_ref_store(const char *submodule)
 }
 
 /*
- * Register the specified ref_store to be the one that should be used
- * for submodule (or the main repository if submodule is NULL). It is
- * a fatal error to call this function twice for the same submodule.
- */
-static void register_ref_store(struct ref_store *refs, const char *submodule)
-{
-	if (!submodule) {
-		if (main_ref_store)
-			die("BUG: main_ref_store initialized twice");
-
-		main_ref_store = refs;
-	} else {
-		if (!submodule_ref_stores.tablesize)
-			hashmap_init(&submodule_ref_stores, submodule_hash_cmp, 0);
-
-		if (hashmap_put(&submodule_ref_stores,
-				alloc_submodule_hash_entry(submodule, refs)))
-			die("BUG: ref_store for submodule '%s' initialized twice",
-			    submodule);
-	}
-}
-
-/*
  * Create, record, and return a ref_store instance for the specified
  * submodule (or the main repository if submodule is NULL).
  */
@@ -1448,7 +1425,6 @@ static struct ref_store *ref_store_init(const char *submodule)
 		die("BUG: reference backend %s is unknown", be_name);
 
 	refs = be->init(submodule);
-	register_ref_store(refs, submodule);
 	return refs;
 }
 
@@ -1460,9 +1436,27 @@ static struct ref_store *get_main_ref_store(void)
 		return main_ref_store;
 
 	refs = ref_store_init(NULL);
+	main_ref_store = refs;
 	return refs;
 }
 
+/*
+ * Register the specified ref_store to be the one that should be used
+ * for submodule. It is a fatal error to call this function twice for
+ * the same submodule.
+ */
+static void register_submodule_ref_store(struct ref_store *refs,
+					 const char *submodule)
+{
+	if (!submodule_ref_stores.tablesize)
+		hashmap_init(&submodule_ref_stores, submodule_hash_cmp, 0);
+
+	if (hashmap_put(&submodule_ref_stores,
+			alloc_submodule_hash_entry(submodule, refs)))
+		die("BUG: ref_store for submodule '%s' initialized twice",
+		    submodule);
+}
+
 struct ref_store *get_ref_store(const char *submodule)
 {
 	struct strbuf submodule_sb = STRBUF_INIT;
@@ -1484,6 +1478,7 @@ struct ref_store *get_ref_store(const char *submodule)
 		return NULL;
 
 	refs = ref_store_init(submodule);
+	register_submodule_ref_store(refs, submodule);
 	return refs;
 }
 
-- 
2.11.0.157.gd943d85




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