mirror of https://github.com/voidlizard/hbs2
747 lines
24 KiB
Haskell
747 lines
24 KiB
Haskell
{-# OPTIONS_GHC -fno-warn-orphans #-}
|
|
{-# Language ViewPatterns #-}
|
|
{-# Language PatternSynonyms #-}
|
|
{-# Language RecordWildCards #-}
|
|
{-# Language UndecidableInstances #-}
|
|
{-# Language AllowAmbiguousTypes #-}
|
|
module Main where
|
|
|
|
import HBS2.Prelude.Plated
|
|
import HBS2.OrDie
|
|
import HBS2.Base58
|
|
import HBS2.Merkle
|
|
import HBS2.Data.Detect hiding (Blob)
|
|
import HBS2.Data.Detect qualified as Detect
|
|
|
|
import HBS2.Storage
|
|
import HBS2.Peer.CLI.Detect
|
|
import HBS2.Peer.RPC.Client
|
|
import HBS2.Peer.RPC.Client.Unix
|
|
import HBS2.Peer.RPC.API.Peer
|
|
import HBS2.Peer.RPC.API.RefLog
|
|
import HBS2.Peer.RPC.API.RefChan
|
|
import HBS2.Peer.RPC.API.LWWRef
|
|
import HBS2.Peer.RPC.API.Storage
|
|
import HBS2.Peer.RPC.Client.StorageClient
|
|
|
|
import HBS2.Git.Local
|
|
import HBS2.Git.Local.CLI
|
|
|
|
import HBS2.CLI.Run.Internal.Merkle (createTreeWithMetadata)
|
|
|
|
import HBS2.System.Logger.Simple.ANSI as Exported
|
|
import HBS2.System.Dir
|
|
import HBS2.Misc.PrettyStuff as Exported
|
|
|
|
import HBS2.Git3.Types
|
|
import HBS2.Git3.State.Direct
|
|
import HBS2.Git3.Config.Local
|
|
|
|
import Data.Config.Suckless.Script
|
|
import DBPipe.SQLite
|
|
|
|
-- import Codec.Compression.GZip as GZ1
|
|
-- import Codec.Compression.Zlib.Internal qualified as GZ
|
|
|
|
import Codec.Compression.BZip as BZ1
|
|
import Codec.Compression.BZip.Internal qualified as BZ
|
|
-- import Codec.Compression.Zlib.Internal qualified as GZ
|
|
|
|
import Data.HashPSQ qualified as HPSQ
|
|
import Data.Maybe
|
|
import Data.List qualified as L
|
|
import Data.ByteString.Lazy.Char8 qualified as LBS8
|
|
import Data.ByteString.Lazy qualified as LBS
|
|
import Data.ByteString qualified as BS
|
|
import Data.ByteString.Lazy (ByteString)
|
|
import Text.InterpolatedString.Perl6 (qc)
|
|
import Data.HashSet qualified as HS
|
|
import Data.HashSet (HashSet(..))
|
|
import Data.HashMap.Strict qualified as HM
|
|
import Data.Word
|
|
|
|
import Streaming.Prelude qualified as S
|
|
import System.Exit qualified as Q
|
|
import System.Environment qualified as E
|
|
import System.Process.Typed
|
|
import Control.Monad.Trans.Cont
|
|
import Control.Monad.Trans.Maybe
|
|
import Control.Monad.Reader
|
|
import System.IO (hPrint,hGetLine,IOMode(..))
|
|
import System.IO qualified as IO
|
|
|
|
import Data.Coerce
|
|
import Data.Kind
|
|
import Data.List (sortOn)
|
|
import Data.Ord (Down(..))
|
|
|
|
import UnliftIO
|
|
|
|
{- HLINT ignore "Functor law" -}
|
|
{- HLINT ignore "Eta reduce" -}
|
|
|
|
type HBS2GitPerks m = (MonadUnliftIO m)
|
|
|
|
quit :: MonadUnliftIO m => m ()
|
|
quit = liftIO Q.exitSuccess
|
|
|
|
data GitException =
|
|
CompressionError String
|
|
| InvalidObjectFormat GitObjectType (Maybe GitHash)
|
|
| InvalidGitPack ByteString
|
|
| OtherGitError String
|
|
| UnknownRev String
|
|
| GitReadError String
|
|
deriving stock (Eq,Show,Typeable,Generic)
|
|
|
|
instance Exception GitException
|
|
|
|
data GitTreeEntry =
|
|
GitTreeEntry
|
|
{ gitEntryAttribs :: Word16
|
|
, gitEntryType :: GitObjectType
|
|
, gitEntryHash :: GitHash
|
|
, gitEntrySize :: Maybe Word32
|
|
, gitEntryName :: FilePath
|
|
}
|
|
|
|
pattern GitTreeEntryView :: GitTreeEntry -> [ByteString]
|
|
pattern GitTreeEntryView e <- (isGitLsTreeEntry -> Just e)
|
|
|
|
isGitLsTreeEntry :: [ByteString] -> Maybe GitTreeEntry
|
|
isGitLsTreeEntry = \case
|
|
[sa,st,sh,ss,sn] -> do
|
|
GitTreeEntry <$> readMay @Word16 (LBS8.unpack sa)
|
|
<*> fromStringMay (LBS8.unpack st)
|
|
<*> fromStringMay (LBS8.unpack sh)
|
|
<*> pure (readMay (LBS8.unpack ss))
|
|
<*> pure (LBS8.unpack sn)
|
|
|
|
_ -> Nothing
|
|
|
|
gitReadTree :: (Pretty what, MonadIO m) => what -> m [GitTreeEntry]
|
|
gitReadTree what =
|
|
gitRunCommand [qc|git ls-tree -t -l -r {pretty what}|]
|
|
>>= orThrowPassIO
|
|
<&> fmap LBS8.words . LBS8.lines
|
|
<&> mapMaybe \case
|
|
GitTreeEntryView v -> do
|
|
Just v
|
|
_ -> Nothing
|
|
<&> \s -> HM.elems (HM.fromList [ (gitEntryHash e, e) | e <- s])
|
|
|
|
|
|
class GitObjectReader a where
|
|
gitReadObjectMaybe :: forall m . MonadIO m => a -> GitHash -> m (Maybe (GitObjectType, ByteString))
|
|
|
|
gitReadObjectThrow :: (Pretty h, MonadIO m) => GitObjectType -> h -> m ByteString
|
|
gitReadObjectThrow t h = do
|
|
gitRunCommand [qc|git cat-file {pretty t} {pretty h}|]
|
|
>>= orThrowPassIO
|
|
|
|
gitRevParse :: (Pretty ref, MonadIO m) => ref -> m (Maybe GitHash)
|
|
gitRevParse ref = do
|
|
gitRunCommand [qc|git rev-parse {pretty ref}|]
|
|
>>= orThrowPassIO
|
|
<&> LBS8.words
|
|
<&> maybe Nothing (fromStringMay . LBS8.unpack) . headMay
|
|
|
|
gitRevParseThrow :: (Pretty ref, MonadIO m) => ref -> m GitHash
|
|
gitRevParseThrow r = gitRevParse r >>= orThrow (UnknownRev (show $ pretty r))
|
|
|
|
withGitCat :: (MonadIO m) => (Process Handle Handle () -> m a) -> m a
|
|
withGitCat action = do
|
|
let cmd = "git"
|
|
let args = ["cat-file", "--batch"]
|
|
let config = setStdin createPipe $ setStdout createPipe $ setStderr closed $ proc cmd args
|
|
p <- startProcess config
|
|
action p
|
|
|
|
instance GitObjectReader (Process Handle Handle ()) where
|
|
gitReadObjectMaybe ph co = liftIO do
|
|
|
|
let ssin = getStdin ph
|
|
let ssout = getStdout ph
|
|
|
|
hPrint ssin $ pretty co
|
|
hFlush ssin
|
|
|
|
s <- hGetLine ssout
|
|
|
|
runMaybeT do
|
|
|
|
case words s of
|
|
[_,t,ss] -> do
|
|
n <- readMay @Int ss & toMPlus
|
|
o <- fromStringMay @GitObjectType t & toMPlus
|
|
bs <- lift $ LBS.hGet ssout n
|
|
void $ lift $ hGetLine ssout
|
|
pure (o,bs)
|
|
|
|
_ -> mzero
|
|
|
|
newtype Short x = Short x
|
|
|
|
instance Pretty (Short GitObjectType) where
|
|
pretty = \case
|
|
(Short Tree) -> "T"
|
|
(Short Blob) -> "B"
|
|
(Short Commit) -> "C"
|
|
|
|
|
|
sortGitTreeEntries :: [GitTreeEntry] -> [GitTreeEntry]
|
|
sortGitTreeEntries = sortOn (\e -> (gitEntryType e, gitEntrySize e))
|
|
|
|
class GitWritePacksOpts a where
|
|
excludeParents :: a -> Bool
|
|
|
|
instance GitWritePacksOpts () where
|
|
excludeParents = const True
|
|
|
|
data GitWritePacksOptVal =
|
|
WriteFullPack
|
|
deriving stock (Eq,Ord,Show,Generic)
|
|
|
|
instance Hashable GitWritePacksOptVal
|
|
|
|
instance GitWritePacksOpts (HashSet GitWritePacksOptVal) where
|
|
excludeParents o = not $ HS.member WriteFullPack o
|
|
|
|
data Git3Exception =
|
|
Git3PeerNotConnected
|
|
deriving (Show,Typeable,Generic)
|
|
|
|
instance Exception Git3Exception
|
|
|
|
data Git3Env =
|
|
Git3Disconnected
|
|
{ gitRefLog :: TVar (Maybe GitRemoteKey)
|
|
}
|
|
| Git3Connected
|
|
{ stateDb :: DBPipeEnv
|
|
, peerSocket :: FilePath
|
|
, peerStorage :: AnyStorage
|
|
, peerAPI :: ServiceCaller PeerAPI UNIX
|
|
, gitRefLog :: TVar (Maybe GitRemoteKey)
|
|
}
|
|
|
|
class HasGitRemoteKey m where
|
|
getGitRemoteKey :: m (Maybe GitRemoteKey)
|
|
setGitRemoteKey :: GitRemoteKey -> m ()
|
|
|
|
instance (MonadIO m, MonadReader Git3Env m) => HasGitRemoteKey m where
|
|
getGitRemoteKey = do
|
|
e <- ask
|
|
liftIO $ readTVarIO (gitRefLog e)
|
|
|
|
setGitRemoteKey k = do
|
|
e <- ask
|
|
liftIO $ atomically $ writeTVar (gitRefLog e) (Just k)
|
|
|
|
instance (MonadIO m) => HasStateDB (Git3 m) where
|
|
getStateDB = asks stateDb
|
|
|
|
instance (MonadIO m, MonadReader Git3Env m) => HasStorage m where
|
|
getStorage = do
|
|
e <- ask
|
|
case e of
|
|
Git3Disconnected{} -> throwIO Git3PeerNotConnected
|
|
Git3Connected{..} -> pure peerStorage
|
|
|
|
newtype Git3 (m :: Type -> Type) a = Git3M { fromGit3 :: ReaderT Git3Env m a }
|
|
deriving newtype ( Applicative
|
|
, Functor
|
|
, Monad
|
|
, MonadIO
|
|
, MonadUnliftIO
|
|
, MonadReader Git3Env
|
|
)
|
|
|
|
type Git3Perks m = ( MonadIO m
|
|
, MonadUnliftIO m
|
|
)
|
|
|
|
|
|
instance MonadUnliftIO m => HasClientAPI PeerAPI UNIX (Git3 m) where
|
|
getClientAPI = do
|
|
ask >>= \case
|
|
Git3Disconnected{} -> throwIO Git3PeerNotConnected
|
|
Git3Connected{..} -> pure peerAPI
|
|
|
|
-- instance (MonadUnliftIO m, HasClientAPI api proto m) => HasClientAPI api proto (RunM c m) where
|
|
-- getClientAPI = lift (getClientAPI @api @proto)
|
|
|
|
-- instance (MonadUnliftIO m, HasClientAPI api proto m) => HasClientAPI api proto (ContT a (RunM c m)) where
|
|
-- getClientAPI = lift $ getClientAPI @api @proto
|
|
|
|
nullGit3Env :: MonadIO m => m Git3Env
|
|
nullGit3Env = Git3Disconnected <$> newTVarIO Nothing
|
|
|
|
connectedDo :: (MonadIO m, MonadReader Git3Env m) => m a -> m a
|
|
connectedDo what = do
|
|
env <- ask
|
|
debug $ red "connectedDo"
|
|
case env of
|
|
Git3Disconnected{} -> do
|
|
throwIO Git3PeerNotConnected
|
|
|
|
_ -> what
|
|
|
|
withGit3Env :: Git3Perks m => Git3Env -> Git3 m a -> m a
|
|
withGit3Env env a = runReaderT (fromGit3 a) env
|
|
|
|
runGit3 :: Git3Perks m => Git3Env -> Git3 m b -> m b
|
|
runGit3 env action = withGit3Env env action
|
|
|
|
recover :: Git3 IO a -> Git3 IO a
|
|
recover m = fix \again -> do
|
|
catch m $ \case
|
|
Git3PeerNotConnected -> do
|
|
|
|
soname <- detectRPC
|
|
`orDie` "can't locate hbs2-peer rpc"
|
|
|
|
flip runContT pure do
|
|
|
|
client <- lift $ race (pause @'Seconds 1) (newMessagingUnix False 1.0 soname)
|
|
>>= orThrowUser ("can't connect to" <+> pretty soname)
|
|
|
|
void $ ContT $ withAsync $ runMessagingUnix client
|
|
|
|
peerAPI <- makeServiceCaller @PeerAPI (fromString soname)
|
|
refLogAPI <- makeServiceCaller @RefLogAPI (fromString soname)
|
|
storageAPI <- makeServiceCaller @StorageAPI (fromString soname)
|
|
lwwAPI <- makeServiceCaller @LWWRefAPI (fromString soname)
|
|
|
|
-- let sto = AnyStorage (StorageClient storageAPI)
|
|
|
|
let endpoints = [ Endpoint @UNIX peerAPI
|
|
, Endpoint @UNIX refLogAPI
|
|
, Endpoint @UNIX lwwAPI
|
|
, Endpoint @UNIX storageAPI
|
|
]
|
|
|
|
void $ ContT $ withAsync $ liftIO $ runReaderT (runServiceClientMulti endpoints) client
|
|
|
|
ref <- getGitRemoteKey >>= orThrowUser "remote ref not set"
|
|
|
|
dbPath <- getStatePathDB (AsBase58 ref)
|
|
|
|
touch dbPath
|
|
db <- newDBPipeEnv dbPipeOptsDef dbPath
|
|
|
|
let sto = AnyStorage (StorageClient storageAPI)
|
|
|
|
connected <- Git3Connected db soname sto peerAPI <$> newTVarIO (Just ref)
|
|
|
|
liftIO $ withGit3Env connected (evolveState >> again)
|
|
|
|
gitReadCommitParents :: MonadIO m => ByteString -> m [GitHash]
|
|
gitReadCommitParents bs = do
|
|
what <- LBS8.lines bs
|
|
& takeWhile ( not . LBS8.null )
|
|
& LBS8.unpack . LBS8.unlines
|
|
& parseTop
|
|
& orThrow (OtherGitError "invalid commit format")
|
|
|
|
pure $ [ fromStringMay @GitHash hash
|
|
| ListVal [ StringLike "parent", StringLike hash ] <- what
|
|
] & catMaybes
|
|
|
|
gitWriteCommitPackIO :: (GitWritePacksOpts opt, GitObjectReader reader, Pretty what) => opt -> reader -> what -> ( BS.ByteString -> IO () ) -> IO ()
|
|
gitWriteCommitPackIO opts reader what action = do
|
|
hhead <- gitRevParse what >>= orThrow (OtherGitError $ show $ "can't parse" <+> pretty what)
|
|
|
|
parents <- gitReadObjectThrow Commit hhead >>= gitReadCommitParents
|
|
|
|
skip <- if not (excludeParents opts) then do
|
|
pure mempty
|
|
else do
|
|
skip' <- S.toList_ $ for parents $ \p -> do
|
|
gitReadTree p <&> fmap gitEntryHash >>= S.each
|
|
pure $ HS.fromList skip'
|
|
|
|
|
|
r <- gitReadTree hhead
|
|
<&> L.filter (\GitTreeEntry{..} -> not (HS.member gitEntryHash skip))
|
|
<&> sortGitTreeEntries
|
|
|
|
flip runContT pure do
|
|
|
|
inq <- newTQueueIO
|
|
|
|
atomically do
|
|
writeTQueue inq (Commit, hhead)
|
|
for_ r $ \GitTreeEntry{..} -> do
|
|
writeTQueue inq (gitEntryType, gitEntryHash)
|
|
|
|
let params = defaultCompressParams
|
|
let compressStream = BZ.compressIO params
|
|
|
|
lift $ flip fix compressStream $ \go -> \case
|
|
BZ.CompressInputRequired next -> do
|
|
|
|
inO <- atomically $ tryReadTQueue inq
|
|
|
|
case inO of
|
|
Nothing -> go =<< next mempty
|
|
|
|
Just (t,ha) -> do
|
|
(tt,bs) <- gitReadObjectMaybe reader ha >>= orThrow (GitReadError (show $ pretty ha))
|
|
let header = [qc|{pretty (Short tt)} {pretty $ LBS.length bs} {pretty ha}|]
|
|
go =<< next (LBS.toStrict (LBS8.intercalate "\n" [header, bs]))
|
|
|
|
BZ.CompressOutputAvailable outchunk next -> do
|
|
action outchunk
|
|
go =<< next
|
|
|
|
BZ.CompressStreamEnd -> pure ()
|
|
|
|
data UState =
|
|
UHead ByteString
|
|
|
|
pattern PEntryView :: GitObjectType -> Word32 -> GitHash -> [ByteString]
|
|
pattern PEntryView t s h <- ( unpackPEntry -> Just (t,s,h) )
|
|
|
|
unpackPEntry :: [ByteString] -> Maybe (GitObjectType, Word32, GitHash)
|
|
unpackPEntry = \case
|
|
["C", s, h] -> (Commit,,) <$> readMay (LBS8.unpack s) <*> fromStringMay (LBS8.unpack h)
|
|
["B", s, h] -> (Blob,,) <$> readMay (LBS8.unpack s) <*> fromStringMay (LBS8.unpack h)
|
|
["T", s, h] -> (Tree,,) <$> readMay (LBS8.unpack s) <*> fromStringMay (LBS8.unpack h)
|
|
_ -> Nothing
|
|
|
|
data ExportState =
|
|
ExportGetCommit
|
|
| ExportCheck
|
|
| ExportStart
|
|
|
|
data WState =
|
|
WStart
|
|
| WReadSBlock HashRef
|
|
| WCheckSBlock HashRef ByteString
|
|
| WWalkSBlock HashRef (MTree [HashRef])
|
|
| WGetInput
|
|
| WEnd
|
|
|
|
data WInput =
|
|
WInputSBlock
|
|
| WInputCBlock
|
|
|
|
theDict :: forall m . ( HBS2GitPerks m
|
|
, HasClientAPI PeerAPI UNIX m
|
|
, HasStorage m
|
|
, HasGitRemoteKey m
|
|
, HasStateDB m
|
|
, MonadReader Git3Env m
|
|
) => Dict C m
|
|
theDict = do
|
|
makeDict @C do
|
|
-- TODO: write-man-entries
|
|
myHelpEntry
|
|
where
|
|
|
|
myHelpEntry = do
|
|
entry $ bindMatch "--help" $ nil_ $ \case
|
|
HelpEntryBound what -> do
|
|
helpEntry what
|
|
quit
|
|
|
|
_ -> helpList False Nothing >> quit
|
|
|
|
entry $ bindMatch "git:tree:ls" $ nil_ $ const do
|
|
r <- gitReadTree "HEAD"
|
|
for_ r $ \GitTreeEntry{..} -> do
|
|
liftIO $ print $ pretty gitEntryHash <+> pretty gitEntryType <+> pretty gitEntrySize <+> pretty gitEntryName
|
|
|
|
|
|
entry $ bindMatch "reflog" $ nil_ $ \case
|
|
[ SignPubKeyLike what ] -> do
|
|
debug $ "set reflog" <+> pretty (AsBase58 what)
|
|
lift $ setGitRemoteKey what
|
|
|
|
_ -> throwIO (BadFormException @C nil)
|
|
|
|
entry $ bindMatch "test:state:init" $ nil_ $ \case
|
|
[ ] -> do
|
|
lift $ connectedDo do
|
|
r <- getGitRemoteKey >>= orThrowUser "git remote not set"
|
|
p <- getStatePathDB (AsBase58 r)
|
|
debug $ "test:state:init" <+> pretty p
|
|
|
|
_ -> throwIO (BadFormException @C nil)
|
|
|
|
entry $ bindMatch "test:git:tree:pack:dump" $ nil_ $ \case
|
|
[ StringLike fn ] -> do
|
|
|
|
content <- BZ.decompress defaultDecompressParams <$> liftIO (LBS8.readFile fn)
|
|
|
|
flip fix (UHead content) $ \next -> \case
|
|
UHead "" -> none
|
|
UHead bs -> do
|
|
|
|
let (hd,rest) = LBS8.span (/='\n') bs
|
|
|
|
case LBS8.words hd of
|
|
PEntryView t s h -> do
|
|
liftIO $ print $ pretty h <+> pretty t <+> pretty s
|
|
next $ UHead (LBS8.drop (1 + fromIntegral s) rest)
|
|
|
|
_ -> throwIO (InvalidGitPack hd)
|
|
|
|
_ -> throwIO (BadFormException @C nil)
|
|
|
|
|
|
entry $ bindMatch "test:hbs2:peer:poke" $ nil_ $ \syn -> do
|
|
peer <- getClientAPI @PeerAPI @UNIX
|
|
r <- callRpcWaitRetry @RpcPoke (TimeoutSec 0.5) 2 peer () >>= orThrowUser "hbs2-peer not found"
|
|
notice $ pretty r
|
|
|
|
|
|
entry $ bindMatch "test:git:tree:pack:write" $ nil_ $ \syn -> flip runContT pure do
|
|
|
|
let o = [ WriteFullPack | StringLike "--full" <- syn ] & HS.fromList
|
|
|
|
(what,to) <- case syn of
|
|
|
|
( StringLike rev : StringLike fn : _) -> do
|
|
-- let co = headDef "HEAD" $ [ GitRef (LBS8.toStrict $ LBS8.pack what) | StringLike what <- syn ]
|
|
fh <- ContT $ bracket (liftIO (IO.openFile fn WriteMode)) hClose
|
|
pure (rev, fh)
|
|
|
|
( StringLike rev : _ ) -> pure ( rev, stdout )
|
|
|
|
_ -> pure ( "HEAD", stdout )
|
|
|
|
rd <- ContT withGitCat
|
|
|
|
liftIO $ gitWriteCommitPackIO o rd what $ \bs -> do
|
|
BS.hPut to bs
|
|
|
|
|
|
entry $ bindMatch "test:git:tree:walk" $ nil_ $ \syn -> do
|
|
sref <- case syn of
|
|
[ HashLike s ] -> pure s
|
|
_ -> throwIO (BadFormException @C nil)
|
|
|
|
sto <- lift getStorage
|
|
lift $ connectedDo $ flip runContT pure $ do
|
|
|
|
_p <- newTVarIO 0
|
|
wq <- newTVarIO ( HPSQ.empty @HashRef @Int @WInput )
|
|
notice $ "sblock" <+> pretty sref
|
|
|
|
atomically $ modifyTVar wq (HPSQ.insert sref 0 WInputSBlock)
|
|
|
|
flip fix WGetInput \next -> \case
|
|
WStart -> do
|
|
debug $ "start" <+> pretty sref
|
|
next WEnd -- (WReadSBlock sref)
|
|
|
|
WReadSBlock h -> do
|
|
blk' <- getBlock sto (coerce h)
|
|
maybe1 blk' (next WEnd) (next . WCheckSBlock h)
|
|
|
|
WCheckSBlock h bs -> do
|
|
let what = tryDetect (coerce h) bs
|
|
case what of
|
|
Merkle mt -> next (WWalkSBlock h mt)
|
|
_ -> next WEnd
|
|
|
|
WWalkSBlock self x -> case x of
|
|
MLeaf ( (c:parents) :: [HashRef]) -> do
|
|
|
|
debug $ "walk sblock yay!" <+> pretty self <+> pretty parents
|
|
debug $ "sblok content" <+> pretty c
|
|
|
|
atomically do
|
|
p0 <- stateTVar _p $ \x -> (x, pred x)
|
|
for_ (zip [1 ..] parents) $ \(i,p) -> do
|
|
modifyTVar _p $ \x -> x - i
|
|
modifyTVar wq (HPSQ.insert p (p0-i) WInputSBlock)
|
|
|
|
modifyTVar wq (HPSQ.insert c (p0+1) WInputCBlock)
|
|
|
|
next WGetInput
|
|
|
|
_ -> next WEnd
|
|
|
|
WGetInput -> do
|
|
n <- readTVarIO wq <&> HPSQ.size
|
|
debug $ "get input!" <+> pretty n
|
|
|
|
inp <- atomically $ stateTVar wq $ HPSQ.alterMin \case
|
|
Nothing -> (Nothing, Nothing)
|
|
Just (k,p,v) -> (Just (k,p,v), Nothing)
|
|
|
|
case inp of
|
|
Just (h, _, WInputSBlock) -> do
|
|
debug $ "goto sblock" <+> pretty h
|
|
next (WReadSBlock h)
|
|
|
|
Just (h, _, WInputCBlock) -> do
|
|
debug $ "process cblock" <+> pretty h
|
|
next WGetInput
|
|
|
|
Nothing -> next WEnd
|
|
|
|
WEnd -> do
|
|
debug "exit"
|
|
|
|
|
|
entry $ bindMatch "test:git:tree:export" $ nil_ $ \syn -> do
|
|
|
|
mkdir "export"
|
|
|
|
r <- case syn of
|
|
[] -> gitRevParseThrow "HEAD"
|
|
[ StringLike co ] -> gitRevParseThrow co
|
|
_ -> throwIO (BadFormException @C nil)
|
|
|
|
debug $ "process commit" <+> pretty r
|
|
|
|
q <- newTVarIO ( HPSQ.empty @GitHash @Double @() )
|
|
done <- newTVarIO ( mempty :: HashSet GitHash )
|
|
|
|
atomically $ modifyTVar q (HPSQ.insert r 1.0 ())
|
|
|
|
lift $ connectedDo do
|
|
|
|
sto <- getStorage
|
|
|
|
flip runContT pure do
|
|
|
|
reader <- ContT $ withGitCat
|
|
|
|
ContT $ bracket none $ const do
|
|
hClose $ getStdin reader
|
|
|
|
flip fix ExportGetCommit $ \next -> \case
|
|
|
|
ExportStart -> do
|
|
here <- lift $ withState $ selectGitPack r <&> isJust
|
|
if here then next ExportCheck else next ExportGetCommit
|
|
|
|
ExportGetCommit -> do
|
|
|
|
co' <- atomically $ stateTVar q $ HPSQ.alterMin \case
|
|
Nothing -> (Nothing, Nothing)
|
|
Just (k,p,v) -> (Just (k,p), Nothing)
|
|
|
|
case co' of
|
|
Nothing -> next ExportCheck
|
|
|
|
Just (co,prio) -> do
|
|
debug $ "Process commit" <+> pretty co
|
|
debug $ "check-pack-for" <+> pretty prio <+> pretty co
|
|
|
|
isDone <- readTVarIO done <&> HS.member co
|
|
|
|
let already = isDone
|
|
|
|
if already
|
|
then next ExportGetCommit
|
|
else do
|
|
(t,bs) <- liftIO (gitReadObjectMaybe reader co)
|
|
>>= orThrow (GitReadError (show $ pretty co))
|
|
|
|
parents <- gitReadCommitParents bs
|
|
|
|
n <- for (zip [1..] parents) $ \(i,gh) -> do
|
|
here <- lift $ withState $ selectGitPack gh <&> isJust
|
|
atomically do
|
|
pdone <- readTVar done <&> HS.member gh
|
|
if pdone || here then do
|
|
pure 0
|
|
else do
|
|
modifyTVar q (HPSQ.insert gh (prio-i) ())
|
|
pure 1
|
|
|
|
if sum n == 0 then lift do
|
|
debug $ "write pack for" <+> pretty co
|
|
|
|
let fn = "export" </> show (pretty co) <> ".pack"
|
|
|
|
liftIO $ withFile fn WriteMode $ \to -> do
|
|
gitWriteCommitPackIO () reader co $ \pss -> do
|
|
BS.hPut to pss
|
|
|
|
-- FIXME: support-encryption!
|
|
lbs <- liftIO $ LBS.readFile fn
|
|
|
|
href <- createTreeWithMetadata sto mzero mempty lbs
|
|
>>= orThrowUser "can't write merkle tree"
|
|
|
|
debug $ "pack-merkle-tree-hash" <+> pretty href
|
|
|
|
debug $ "make cblock"
|
|
|
|
phashes <- withState $ for parents \p -> do
|
|
selectCBlock p
|
|
>>= orThrowUser ("pack export failed" <+> pretty p)
|
|
|
|
debug $ "write cblock"
|
|
|
|
let cblock = href : phashes
|
|
let pt = toPTree (MaxSize 1024) (MaxNum 1024) cblock
|
|
|
|
root <- makeMerkle 0 pt $ \(_,_,s) -> do
|
|
void $ putBlock sto s
|
|
|
|
withState $ transactional do
|
|
insertGitPack co href
|
|
insertCBlock co (HashRef root)
|
|
|
|
atomically $ modifyTVar done (HS.insert co)
|
|
else do
|
|
atomically $ modifyTVar q (HPSQ.insert co prio ())
|
|
|
|
next ExportGetCommit
|
|
|
|
ExportCheck -> do
|
|
debug $ "ExportCheck dummy" <+> pretty r
|
|
c <- lift $ withState $ selectCBlock r >>= orThrowUser "export failed"
|
|
liftIO $ hPrint stdout (pretty c)
|
|
|
|
|
|
-- debugPrefix :: LoggerEntry -> LoggerEntry
|
|
debugPrefix = toStderr . logPrefix "[debug] "
|
|
|
|
setupLogger :: MonadIO m => m ()
|
|
setupLogger = do
|
|
setLogging @DEBUG $ toStderr . logPrefix "[debug] "
|
|
setLogging @ERROR $ toStderr . logPrefix "[error] "
|
|
setLogging @WARN $ toStderr . logPrefix "[warn] "
|
|
setLogging @NOTICE $ toStdout . logPrefix ""
|
|
pure ()
|
|
|
|
flushLoggers :: MonadIO m => m ()
|
|
flushLoggers = do
|
|
silence
|
|
|
|
silence :: MonadIO m => m ()
|
|
silence = do
|
|
setLoggingOff @DEBUG
|
|
setLoggingOff @ERROR
|
|
setLoggingOff @WARN
|
|
setLoggingOff @NOTICE
|
|
|
|
main :: IO ()
|
|
main = flip runContT pure do
|
|
|
|
setupLogger
|
|
|
|
ContT $ bracket none $ const do
|
|
silence
|
|
|
|
argz <- liftIO $ E.getArgs
|
|
cli <- parseTop (unlines $ unwords <$> splitForms argz)
|
|
& either (error.show) pure
|
|
|
|
env <- nullGit3Env
|
|
|
|
void $ lift $ withGit3Env env do
|
|
conf <- readLocalConf
|
|
let dict = theDict
|
|
recover $ run dict (conf <> cli)
|
|
|