hbs2/hbs2-git3/lib/HBS2/Git3/Repo.hs

155 lines
4.4 KiB
Haskell

{-# Language UndecidableInstances #-}
{-# Language AllowAmbiguousTypes #-}
module HBS2.Git3.Repo ( initRepo, waitRepo
, getRepoRefMaybe
, getRepoManifest
, HasGitRemoteKey(..)
) where
import HBS2.Git3.Prelude
import HBS2.Git3.State
import HBS2.CLI.Run.MetaData
import HBS2.Net.Auth.Credentials
import HBS2.Git3.Config.Local
import HBS2.KeyMan.Keys.Direct
import Data.Config.Suckless.Script
import Data.Config.Suckless.Almost.RPC
import Data.ByteString.Lazy.Char8 qualified as LBS8
import Data.Word
import Lens.Micro.Platform
import System.Random hiding (next)
{- HLINT ignore "Functor law"-}
data CInit =
CheckRepoKeyExist
| CreateRepoKey
| CheckRepoKeyStart GitRepoKey
| CheckRepoKeyWait TimeSpec (Timeout 'Seconds) GitRepoKey
| CheckRepoDefBlock GitRepoKey (LWWRef 'HBS2Basic)
| CreateRepoDefBlock GitRepoKey
initRepo :: forall m . HBS2GitPerks m => [Syntax C] -> Git3 m ()
initRepo syn = do
let (opts, _) = splitOpts [("--new",0)] syn
let new = or [ True | ListVal [SymbolVal "--new"] <- opts ]
root <- getConfigRootFile
sto <- getStorage
lwwAPI <- getClientAPI @LWWRefAPI @UNIX
refLogAPI <- getClientAPI @RefLogAPI @UNIX
peerAPI <- getClientAPI @PeerAPI @UNIX
flip fix CheckRepoKeyExist $ \next -> \case
CheckRepoKeyExist -> do
debug "initRepo:CheckRepoKey"
mbk <- getGitRepoKey
next $ maybe CreateRepoKey CheckRepoKeyStart mbk
CreateRepoKey -> do
debug "initRepo:CreateRepoKey"
answ <- callProc "hbs2-cli" [] [mkSym "hbs2:lwwref:create"]
pk <- [ x | ListVal [SymbolVal "pk", SignPubKeyLike x] <- answ ]
& lastMay
& orThrowUser "can't create new lwwref"
liftIO $ appendFile root (show $ pretty $ mkForm "repo:key" [mkSym @C (show $ pretty (AsBase58 pk))])
CheckRepoKeyStart pk -> do
debug $ "initRepo:CheckRepoKeyStart" <+> pretty (AsBase58 pk)
callRpcWaitMay @RpcLWWRefFetch (TimeoutSec 1) lwwAPI (LWWRefKey pk)
>>= orThrowUser "rpc timeout"
now <- getTimeCoarse
let waity = if new then ceiling 0.5e9 else ceiling 30e9
let till = TimeoutTS (now + fromNanoSecs waity )
next $ CheckRepoKeyWait (coerce till) 1.0 pk
CheckRepoKeyWait till w pk -> do
debug $ "initRepo:CheckRepoKeyWait" <+> pretty (AsBase58 pk)
rv <- getRepoRefMaybe
now <- getTimeCoarse
if now > till then do
next $ CreateRepoDefBlock pk
else do
maybe1 rv (pause w >> next (CheckRepoKeyWait till (1.10 * w) pk))
(next . CheckRepoDefBlock pk)
CheckRepoDefBlock pk LWWRef{..} -> do
debug $ "init:CheckRepoDefBlock" <+> pretty (AsBase58 pk) <+> pretty lwwValue
repo <- getRepoManifest
reflog <- getRefLog repo & orThrow GitRepoManifestMalformed
callRpcWaitMay @RpcPollAdd (TimeoutSec 1) peerAPI (reflog, "reflog", 17)
>>= orThrowUser "rpc timeout"
-- FIXME: remove-this
liftIO $ print $ pretty $ mkForm "manifest" (coerce repo)
CreateRepoDefBlock pk -> do
debug $ "init:CreateRepoDefBlock" <+> pretty (AsBase58 pk)
seed <- randomIO @Word64
creds <- runKeymanClientRO (loadCredentials pk)
>>= orThrowUser ("not found credentials for" <+> pretty (AsBase58 pk))
let (wsk,wpk) = (view peerSignSk creds, view peerSignPk creds)
let sk = view peerSignSk creds
(rpk,rsk) <- derivedKey @'HBS2Basic @'Sign seed sk
let manifest = [
mkForm @C "hbs2-git" [mkInt 3]
, mkForm "seed" [mkInt seed]
, mkForm "public" []
, mkForm "reflog" [mkSym (show $ pretty (AsBase58 rpk))]
]
let mfs = vcat $ fmap pretty manifest
tree <- createTreeWithMetadata sto Nothing mempty (LBS8.pack (show $ mfs))
>>= orThrowPassIO
liftIO $ print $ pretty $ mkForm "manifest" manifest
let pt = toPTree (MaxSize defHashListChunk) (MaxNum defTreeChildNum) [tree]
blk <- makeMerkle 0 pt $ \(_,_,bs) -> do
void $ putBlock sto bs
notice $ "current root" <+> pretty blk <+> pretty tree
let box = makeSignedBox wpk wsk (LWWRef 3 (coerce blk) Nothing)
callRpcWaitMay @RpcLWWRefUpdate (TimeoutSec 1) lwwAPI box
>>= orThrowUser "rpc timeout"
callRpcWaitMay @RpcPollAdd (TimeoutSec 1) peerAPI (rpk, "reflog", 17)
>>= orThrowUser "rpc timeout"