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

153 lines
4.3 KiB
Haskell

{-# Language UndecidableInstances #-}
{-# Language AllowAmbiguousTypes #-}
module HBS2.Git3.Repo.Init (initRepo,newRepoOpt) where
import HBS2.Git3.Prelude
import HBS2.Git3.State
import HBS2.CLI.Run.MetaData
import HBS2.Net.Auth.Credentials
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
newRepoOpt :: Syntax C
newRepoOpt = mkList [mkSym "--new"]
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:ref" [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
now <- liftIO getPOSIXTime <&> round
let box = makeSignedBox wpk wsk (LWWRef now (coerce blk) Nothing)
callRpcWaitMay @RpcLWWRefUpdate (TimeoutSec 1) lwwAPI box
>>= orThrowUser "rpc timeout"
callRpcWaitMay @RpcPollAdd (TimeoutSec 1) peerAPI (rpk, "reflog", 17)
>>= orThrowUser "rpc timeout"