From 9af9872f0f54d5d4af2aed3d08eef9ab67012261 Mon Sep 17 00:00:00 2001
From: Joey Hess <joeyh@joeyh.name>
Date: Tue, 6 Jan 2015 19:02:48 -0400
Subject: Merge from git-annex.

---
 Git/Branch.hs | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'Git/Branch.hs')

diff --git a/Git/Branch.hs b/Git/Branch.hs
index 0b7d888..5c6135d 100644
--- a/Git/Branch.hs
+++ b/Git/Branch.hs
@@ -43,6 +43,9 @@ currentUnsafe r = parse . firstLine
 		| null l = Nothing
 		| otherwise = Just $ Git.Ref l
 
+currentSha :: Repo -> IO (Maybe Git.Sha)
+currentSha r = maybe (pure Nothing) (`Git.Ref.sha` r) =<< current r
+
 {- Checks if the second branch has any commits not present on the first
  - branch. -}
 changed :: Branch -> Branch -> Repo -> IO Bool
-- 
cgit v1.2.3