[PATCH 08/11] refs.c: factor submodule code out of get_ref_store()

[Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>]

This code is going to be expanded a bit soon. Keep it out for
better readability later.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
 refs.c | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/refs.c b/refs.c
index 2cacd934e..8ef7a52ba 100644
--- a/refs.c
+++ b/refs.c
@@ -1445,6 +1445,18 @@ static struct ref_store *lookup_ref_store(const char *submodule)
 	return entry ? entry->refs : NULL;
 }
 
+static struct ref_store *init_submodule_ref_store(const char *submodule)
+{
+	struct strbuf submodule_sb = STRBUF_INIT;
+	struct ref_store *refs = NULL;
+
+	strbuf_addstr(&submodule_sb, submodule);
+	if (is_nonbare_repository_dir(&submodule_sb))
+		refs = ref_store_init(submodule);
+	strbuf_release(&submodule_sb);
+	return refs;
+}
+
 struct ref_store *get_ref_store(const char *submodule)
 {
 	struct ref_store *refs;
@@ -1457,14 +1469,8 @@ struct ref_store *get_ref_store(const char *submodule)
 	} else {
 		refs = lookup_ref_store(submodule);
 
-		if (!refs) {
-			struct strbuf submodule_sb = STRBUF_INIT;
-
-			strbuf_addstr(&submodule_sb, submodule);
-			if (is_nonbare_repository_dir(&submodule_sb))
-				refs = ref_store_init(submodule);
-			strbuf_release(&submodule_sb);
-		}
+		if (!refs)
+			refs = init_submodule_ref_store(submodule);
 	}
 
 	return refs;
-- 
2.11.0.157.gd943d85