d5d8259937
Attoparsec parser for diff-tree. Changed fromRef back to producing a String, to avoid needing to convert every use of it. However, this does mean I'm going to miss some opportunities where fromRef is used and the result converted back to a ByteString. Would be worth revisiting that at some point maybe.
49 lines
1.4 KiB
Haskell
49 lines
1.4 KiB
Haskell
{- .git/objects
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-
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- Copyright 2013 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU AGPL version 3 or higher.
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-}
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module Git.Objects where
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import Common
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import Git
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import Git.Sha
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objectsDir :: Repo -> FilePath
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objectsDir r = fromRawFilePath (localGitDir r) </> "objects"
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packDir :: Repo -> FilePath
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packDir r = objectsDir r </> "pack"
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packIdxFile :: FilePath -> FilePath
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packIdxFile = flip replaceExtension "idx"
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listPackFiles :: Repo -> IO [FilePath]
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listPackFiles r = filter (".pack" `isSuffixOf`)
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<$> catchDefaultIO [] (dirContents $ packDir r)
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listLooseObjectShas :: Repo -> IO [Sha]
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listLooseObjectShas r = catchDefaultIO [] $
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mapMaybe (extractSha . encodeBS . concat . reverse . take 2 . reverse . splitDirectories)
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<$> dirContentsRecursiveSkipping (== "pack") True (objectsDir r)
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looseObjectFile :: Repo -> Sha -> FilePath
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looseObjectFile r sha = objectsDir r </> prefix </> rest
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where
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(prefix, rest) = splitAt 2 (fromRef sha)
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listAlternates :: Repo -> IO [FilePath]
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listAlternates r = catchDefaultIO [] (lines <$> readFile alternatesfile)
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where
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alternatesfile = objectsDir r </> "info" </> "alternates"
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{- A repository recently cloned with --shared will have one or more
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- alternates listed, and contain no loose objects or packs. -}
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isSharedClone :: Repo -> IO Bool
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isSharedClone r = allM id
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[ not . null <$> listAlternates r
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, null <$> listLooseObjectShas r
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, null <$> listPackFiles r
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]
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