diff options
Diffstat (limited to 'Git/Objects.hs')
-rw-r--r-- | Git/Objects.hs | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Git/Objects.hs b/Git/Objects.hs index 516aa6d..dadd4f5 100644 --- a/Git/Objects.hs +++ b/Git/Objects.hs @@ -33,3 +33,17 @@ looseObjectFile :: Repo -> Sha -> FilePath looseObjectFile r sha = objectsDir r </> prefix </> rest where (prefix, rest) = splitAt 2 (fromRef sha) + +listAlternates :: Repo -> IO [FilePath] +listAlternates r = catchDefaultIO [] (lines <$> readFile alternatesfile) + where + alternatesfile = objectsDir r </> "info" </> "alternates" + +{- A repository recently cloned with --shared will have one or more + - alternates listed, and contain no loose objects or packs. -} +isSharedClone :: Repo -> IO Bool +isSharedClone r = allM id + [ not . null <$> listAlternates r + , null <$> listLooseObjectShas r + , null <$> listPackFiles r + ] |