[PATCH 3/6] remote.c: hoist branch.*.remote lookup out of remote_get_1

[Jeff King <peff@peff.net>]

We'll want to use this logic as a fallback when looking up
the pushremote, so let's pull it out into its own function.

We don't technically need to make this available outside of
remote.c, but doing so will provide a consistent API with
pushremote_for_branch, which we will add later.

Signed-off-by: Jeff King <peff@peff.net>
---
 remote.c | 21 ++++++++++++++-------
 remote.h |  1 +
 2 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/remote.c b/remote.c
index d5fd605..9555904 100644
--- a/remote.c
+++ b/remote.c
@@ -693,6 +693,18 @@ static int valid_remote_nick(const char *name)
 	return !strchr(name, '/'); /* no slash */
 }
 
+const char *remote_for_branch(struct branch *branch, int *explicit)
+{
+	if (branch && branch->remote_name) {
+		if (explicit)
+			*explicit = 1;
+		return branch->remote_name;
+	}
+	if (explicit)
+		*explicit = 0;
+	return "origin";
+}
+
 static struct remote *remote_get_1(const char *name, const char *pushremote_name)
 {
 	struct remote *ret;
@@ -704,13 +716,8 @@ static struct remote *remote_get_1(const char *name, const char *pushremote_name
 		if (pushremote_name) {
 			name = pushremote_name;
 			name_given = 1;
-		} else {
-			if (current_branch && current_branch->remote_name) {
-				name = current_branch->remote_name;
-				name_given = 1;
-			} else
-				name = "origin";
-		}
+		} else
+			name = remote_for_branch(current_branch, &name_given);
 	}
 
 	ret = make_remote(name, 0);
diff --git a/remote.h b/remote.h
index 4bb6672..2a7e7a6 100644
--- a/remote.h
+++ b/remote.h
@@ -211,6 +211,7 @@ struct branch {
 };
 
 struct branch *branch_get(const char *name);
+const char *remote_for_branch(struct branch *branch, int *explicit);
 
 int branch_has_merge_config(struct branch *branch);
 int branch_merge_matches(struct branch *, int n, const char *);
-- 
2.4.0.rc0.363.gf9f328b