124 lines
3.6 KiB
Haskell
124 lines
3.6 KiB
Haskell
{- This file is part of Vervis.
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-
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- Written in 2016 by fr33domlover <fr33domlover@riseup.net>.
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-
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- ♡ Copying is an act of love. Please copy, reuse and share.
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-
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- The author(s) have dedicated all copyright and related and neighboring
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- rights to this software to the public domain worldwide. This software is
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- distributed without any warranty.
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-
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- You should have received a copy of the CC0 Public Domain Dedication along
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- with this software. If not, see
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- <http://creativecommons.org/publicdomain/zero/1.0/>.
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-}
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module Darcs.Local
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( -- * Initialize new repo
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createRepo
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-- * View repo source
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, readPristineRoot
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)
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where
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import Prelude
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import Storage.Hashed.Hash
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import System.Directory (createDirectory)
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import System.Exit (ExitCode (..))
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import System.FilePath ((</>))
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import System.IO (withFile, IOMode (ReadMode))
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import System.Process (createProcess, proc, waitForProcess)
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import qualified Data.ByteString as B
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{-
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initialRepoTree :: FileName -> DirTree B.ByteString
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initialRepoTree repo =
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Dir repo
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[ Dir "_darcs"
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--[ File "format"
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-- "hashed|no-working-dir\n\
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-- \darcs-2"
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--, File "hashed_inventory" ""
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--, File "index" ???
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, Dir "inventories" []
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, Dir "patches" []
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, Dir "prefs" []
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-- [ File "binaries" ""
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-- , File "boring" ""
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-- , File "motd" ""
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-- ]
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, Dir "pristine.hashed" []
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]
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]
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-}
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-- | initialize a new bare repository at a specific location.
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createRepo
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:: FilePath
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-- ^ Parent directory which already exists
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-> String
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-- ^ Name of new repo, i.e. new directory to create under the parent
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-> IO ()
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createRepo parent name = do
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let path = parent </> name
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createDirectory path
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let settings = proc "darcs" ["init", "--no-working-dir", path]
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(_, _, _, ph) <- createProcess settings
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ec <- waitForProcess ph
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case ec of
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ExitSuccess -> return ()
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ExitFailure n -> error $ "darcs init failed with exit code " ++ show n
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{-data DirEntry = DirEntry
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{ dentType :: ItemType
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, dentName :: Name
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, dentSize :: Maybe Int
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, dentHash :: Hash
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}
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data DirEntryView = DirEntryView
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{ devName :: Name
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, devSize :: Maybe Size
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, devHash :: Hash
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, devContent :: Either BL.ByteString [DirEntry]
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}
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data PathView
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= RootView [DirEntry]
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| TreeView Text Hash [DirEntry]
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| BlobView Text Hash BL.ByteString
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-}
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readPristineRoot :: FilePath -> IO (Maybe Int, Hash)
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readPristineRoot darcsDir = do
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let inventoryFile = darcsDir </> "hashed_inventory"
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line <- withFile inventoryFile ReadMode B.hGetLine
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let hashBS = B.drop 9 line
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return (Nothing, decodeBase16 hashBS)
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{-toDEnt :: (ItemType, Name, Maybe Int, Hash) -> DirEntry
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toDEnt (it, n, ms, h) = DirEntry it n ms h
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readSourceRootDir :: FilePath -> (Maybe Int, Hash) -> IO [DirEntry]
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readSourceRootDir darcsDir (size, hash) =
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let pristineDir = darcsDir </> "pristine.hashed"
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in map toDEnt <$> readDarcsHashedDir pristineDir (size, hash)
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findDirEntry :: Name -> [DirEntry] -> Maybe DirEntry
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findDirEntry name = find ((== name) . dentName)
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viewDirEntry :: FilePath -> DirEntry -> IO DirEntryView
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viewDirEntry pristineDir (DirEntry itype name size hash) = do
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content <- case itype of
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TreeType ->
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BlobType -> fmap decompress . readSegment . darcsLocation pristineDir
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return (name, size, hash, content)
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textToName :: Text -> Name
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textToName = Name . encodeUtf8
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viewPath :: FilePath -> [Name] -> IO PathView
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viewPath repoPath sourcePath = --TODO
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-}
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