[PATCH 1/3] git-submodule: add a get_remote function

[David Aguilar <davvid@gmail.com>]

get_remote finds the remote that corresponds to HEAD.
This code is duplicated from resolve_relative_url but
will be refactored and reused in subsequent commits.

Signed-off-by: David Aguilar <davvid@gmail.com>
---
 git-submodule.sh |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/git-submodule.sh b/git-submodule.sh
index 2a3a197..9d2bddb 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -27,6 +27,15 @@ say()
 	fi
 }
 
+# Gets the remote corresponding to HEAD
+get_remote()
+{
+	branch="$(git symbolic-ref HEAD 2>/dev/null)"
+	remote="$(git config branch.${branch#refs/heads/}.remote)"
+	remote="${remote:-origin}"
+	echo "$remote"
+}
+
 # Resolve relative url by appending to parent's url
 resolve_relative_url ()
 {
-- 
1.6.0.90.g436ed