diff options
Diffstat (limited to 'Git/Ref.hs')
| -rw-r--r-- | Git/Ref.hs | 18 |
1 files changed, 10 insertions, 8 deletions
@@ -18,12 +18,20 @@ import Data.Char (chr) headRef :: Ref headRef = Ref "HEAD" +headFile :: Repo -> FilePath +headFile r = localGitDir r </> "HEAD" + +setHeadRef :: Ref -> Repo -> IO () +setHeadRef ref r = writeFile (headFile r) ("ref: " ++ fromRef ref) + {- Converts a fully qualified git ref into a user-visible string. -} describe :: Ref -> String describe = fromRef . base -{- Often git refs are fully qualified (eg: refs/heads/master). - - Converts such a fully qualified ref into a base ref (eg: master). -} +{- Often git refs are fully qualified + - (eg refs/heads/master or refs/remotes/origin/master). + - Converts such a fully qualified ref into a base ref + - (eg: master or origin/master). -} base :: Ref -> Ref base = Ref . remove "refs/heads/" . remove "refs/remotes/" . fromRef where @@ -31,12 +39,6 @@ base = Ref . remove "refs/heads/" . remove "refs/remotes/" . fromRef | prefix `isPrefixOf` s = drop (length prefix) s | otherwise = s -{- Given a directory and any ref, takes the basename of the ref and puts - - it under the directory. -} -under :: String -> Ref -> Ref -under dir r = Ref $ dir ++ "/" ++ - (reverse $ takeWhile (/= '/') $ reverse $ fromRef r) - {- Given a directory such as "refs/remotes/origin", and a ref such as - refs/heads/master, yields a version of that ref under the directory, - such as refs/remotes/origin/master. -} |