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Database.hs
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Database.hs
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module Stackage.Database
( StackageDatabase
, GetStackageDatabase (..)
, SnapName (..)
, Snapshot (..)
, newestLTS
, newestLTSMajor
, ltsMajorVersions
, newestNightly
, lookupSnapshot
, snapshotTitle
, PackageListingInfo (..)
, getAllPackages
, getPackages
, createStackageDatabase
, openStackageDatabase
, ModuleListingInfo (..)
, getSnapshotModules
, getPackageModules
, SnapshotPackage (..)
, lookupSnapshotPackage
, getDeprecated
, LatestInfo (..)
, getLatests
, getDeps
, getRevDeps
, Package (..)
, getPackage
, prettyName
, getSnapshotsForPackage
, getSnapshots
, currentSchema
, last5Lts5Nightly
) where
import Database.Sqlite (SqliteException)
import Web.PathPieces (toPathPiece)
import qualified Codec.Archive.Tar as Tar
import Database.Esqueleto.Internal.Language (From)
import Text.Markdown (Markdown (..))
import System.Directory (removeFile)
import Stackage.Database.Haddock
import System.FilePath (takeBaseName, takeExtension)
import ClassyPrelude.Conduit hiding (pi)
import Text.Blaze.Html (Html, toHtml)
import Yesod.Form.Fields (Textarea (..))
import Stackage.Database.Types
import System.Directory (getAppUserDataDirectory)
import qualified Filesystem as F
import Filesystem.Path (parent)
import Data.Conduit.Process
import Stackage.Types
import Stackage.Metadata
import Stackage.PackageIndex.Conduit
import Web.PathPieces (fromPathPiece)
import Data.Yaml (decodeFileEither)
import Database.Persist
import Database.Persist.Sqlite
import Database.Persist.TH
import Control.Monad.Logger
import System.IO.Temp
import qualified Database.Esqueleto as E
import Data.Yaml (decode)
currentSchema :: Int
currentSchema = 1
share [mkPersist sqlSettings, mkMigrate "migrateAll"] [persistLowerCase|
Schema
val Int
deriving Show
Imported
name SnapName
type Text
UniqueImported name type
Snapshot
name SnapName
ghc Text
created Day
UniqueSnapshot name
Lts
snap SnapshotId
major Int
minor Int
UniqueLts major minor
Nightly
snap SnapshotId
day Day
UniqueNightly day
Package
name Text
latest Text
synopsis Text
homepage Text
author Text
maintainer Text
licenseName Text
description Html
changelog Html
UniquePackage name
SnapshotPackage
snapshot SnapshotId
package PackageId
isCore Bool
version Text
UniqueSnapshotPackage snapshot package
Module
package SnapshotPackageId
name Text
UniqueModule package name
Dep
user PackageId
uses Text -- avoid circular dependency issue when loading database
range Text
UniqueDep user uses
Deprecated
package PackageId
inFavorOf [PackageId]
UniqueDeprecated package
|]
_hideUnusedWarnings
:: ( SnapshotPackageId
, SchemaId
, ImportedId
, LtsId
, NightlyId
, ModuleId
, DepId
, DeprecatedId
) -> ()
_hideUnusedWarnings _ = ()
newtype StackageDatabase = StackageDatabase ConnectionPool
class MonadIO m => GetStackageDatabase m where
getStackageDatabase :: m StackageDatabase
instance MonadIO m => GetStackageDatabase (ReaderT StackageDatabase m) where
getStackageDatabase = ask
sourcePackages :: MonadResource m => FilePath -> Producer m Tar.Entry
sourcePackages root = do
dir <- liftIO $ cloneOrUpdate root "commercialhaskell" "all-cabal-metadata"
bracketP
(do
(fp, h) <- openBinaryTempFile "/tmp" "all-cabal-metadata.tar"
hClose h
return fp)
removeFile
$ \fp -> do
liftIO $ runIn dir "git" ["archive", "--output", fp, "--format", "tar", "master"]
sourceTarFile False fp
sourceBuildPlans :: MonadResource m => FilePath -> Producer m (SnapName, FilePath, Either (IO BuildPlan) (IO DocMap))
sourceBuildPlans root = do
forM_ ["lts-haskell", "stackage-nightly"] $ \repoName -> do
dir <- liftIO $ cloneOrUpdate root "fpco" repoName
sourceDirectory dir =$= concatMapMC (go Left)
let docdir = dir </> "docs"
whenM (liftIO $ F.isDirectory docdir) $
sourceDirectory docdir =$= concatMapMC (go Right)
where
go wrapper fp | Just name <- nameFromFP fp = liftIO $ do
let bp = decodeFileEither (fpToString fp) >>= either throwM return
return $ Just (name, fp, wrapper bp)
go _ _ = return Nothing
nameFromFP fp = do
base <- stripSuffix ".yaml" $ fpToText $ filename fp
fromPathPiece base
cloneOrUpdate :: FilePath -> String -> String -> IO FilePath
cloneOrUpdate root org name = do
exists <- F.isDirectory dest
if exists
then do
let git = runIn dest "git"
git ["fetch"]
git ["reset", "--hard", "origin/master"]
else runIn root "git" ["clone", url, name]
return dest
where
url = "https://github.com/" ++ org ++ "/" ++ name ++ ".git"
dest = root </> fpFromString name
runIn :: FilePath -> String -> [String] -> IO ()
runIn dir cmd args =
withCheckedProcess cp $ \ClosedStream Inherited Inherited -> return ()
where
cp = (proc cmd args) { cwd = Just $ fpToString dir }
openStackageDatabase :: MonadIO m => FilePath -> m StackageDatabase
openStackageDatabase fp = liftIO $ do
F.createTree $ parent fp
fmap StackageDatabase $ runNoLoggingT $ createSqlitePool (fpToText fp) 7
getSchema :: FilePath -> IO (Maybe Int)
getSchema fp = do
StackageDatabase pool <- openStackageDatabase fp
eres <- try $ runSqlPool (selectList [] []) pool
putStrLn $ "getSchema result: " ++ tshow eres
case eres :: Either SqliteException [Entity Schema] of
Right [Entity _ (Schema v)] -> return $ Just v
_ -> return Nothing
createStackageDatabase :: MonadIO m => FilePath -> m ()
createStackageDatabase fp = liftIO $ do
putStrLn "Entering createStackageDatabase"
actualSchema <- getSchema fp
let schemaMatch = actualSchema == Just currentSchema
unless schemaMatch $ do
putStrLn $ "Current schema does not match actual schema: " ++ tshow (actualSchema, currentSchema)
putStrLn $ "Deleting " ++ fpToText fp
void $ tryIO $ removeFile $ fpToString fp
StackageDatabase pool <- openStackageDatabase fp
flip runSqlPool pool $ do
runMigration migrateAll
unless schemaMatch $ insert_ $ Schema currentSchema
root <- liftIO $ fmap (</> "database") $ fmap fpFromString $ getAppUserDataDirectory "stackage"
F.createTree root
runResourceT $ do
putStrLn "Updating all-cabal-metadata repo"
flip runSqlPool pool $ sourcePackages root $$ getZipSink
( ZipSink (mapM_C addPackage)
*> ZipSink (do
deprs <- foldlC getDeprecated' []
lift $ do
deleteWhere ([] :: [Filter Deprecated])
mapM_ addDeprecated deprs)
*> ZipSink (
let loop i =
await >>= maybe (return ()) (const $ go $ i + 1)
go i = do
when (i `mod` 500 == 0)
$ putStrLn $ concat
[ "Processed "
, tshow i
, " packages"
]
loop i
in loop (0 :: Int))
)
sourceBuildPlans root $$ mapM_C (\(sname, fp', eval) -> flip runSqlPool pool $ do
let (typ, action) =
case eval of
Left bp -> ("build-plan", liftIO bp >>= addPlan sname fp')
Right dm -> ("doc-map", liftIO dm >>= addDocMap sname)
let i = Imported sname typ
eres <- insertBy i
case eres of
Left _ -> putStrLn $ "Skipping: " ++ fpToText fp'
Right _ -> action
)
flip runSqlPool pool $ mapM_ (flip rawExecute []) ["COMMIT", "VACUUM", "BEGIN"]
getDeprecated' :: [Deprecation] -> Tar.Entry -> [Deprecation]
getDeprecated' orig e =
case (Tar.entryPath e, Tar.entryContent e) of
("deprecated.yaml", Tar.NormalFile lbs _) ->
case decode $ toStrict lbs of
Just x -> x
Nothing -> orig
_ -> orig
addDeprecated :: Deprecation -> SqlPersistT (ResourceT IO) ()
addDeprecated (Deprecation name others) = do
name' <- getPackageId name
others' <- mapM getPackageId $ setToList others
insert_ $ Deprecated name' others'
getPackageId :: MonadIO m => Text -> ReaderT SqlBackend m (Key Package)
getPackageId x = do
keys' <- selectKeysList [PackageName ==. x] [LimitTo 1]
case keys' of
k:_ -> return k
[] -> insert Package
{ packageName = x
, packageLatest = "unknown"
, packageSynopsis = "Metadata not found"
, packageDescription = "Metadata not found"
, packageChangelog = mempty
, packageAuthor = ""
, packageMaintainer = ""
, packageHomepage = ""
, packageLicenseName = ""
}
addPackage :: Tar.Entry -> SqlPersistT (ResourceT IO) ()
addPackage e =
case ("packages/" `isPrefixOf` fp && takeExtension fp == ".yaml", Tar.entryContent e) of
(True, Tar.NormalFile lbs _) | Just pi <- decode $ toStrict lbs -> do
let p = Package
{ packageName = pack base
, packageLatest = display $ piLatest pi
, packageSynopsis = piSynopsis pi
, packageDescription = renderContent (piDescription pi) (piDescriptionType pi)
, packageChangelog = renderContent (piChangeLog pi) (piChangeLogType pi)
, packageAuthor = piAuthor pi
, packageMaintainer = piMaintainer pi
, packageHomepage = piHomepage pi
, packageLicenseName = piLicenseName pi
}
mp <- getBy $ UniquePackage $ packageName p
pid <- case mp of
Just (Entity pid _) -> do
replace pid p
return pid
Nothing -> insert p
deleteWhere [DepUser ==. pid]
forM_ (mapToList $ piBasicDeps pi) $ \(uses, range) -> insert_ Dep
{ depUser = pid
, depUses = display uses
, depRange = display range
}
_ -> return ()
where
fp = Tar.entryPath e
base = takeBaseName fp
renderContent txt "markdown" = toHtml $ Markdown $ fromStrict txt
renderContent txt "haddock" = renderHaddock txt
renderContent txt _ = toHtml $ Textarea txt
addPlan :: SnapName -> FilePath -> BuildPlan -> SqlPersistT (ResourceT IO) ()
addPlan name fp bp = do
putStrLn $ "Adding build plan: " ++ toPathPiece name
created <-
case name of
SNNightly d -> return d
SNLts _ _ -> do
let cp' = proc "git"
[ "log"
, "--format=%ad"
, "--date=short"
, fpToString $ filename fp
]
cp = cp' { cwd = Just $ fpToString $ directory fp }
t <- withCheckedProcess cp $ \ClosedStream out ClosedStream ->
out $$ decodeUtf8C =$ foldC
case readMay $ concat $ take 1 $ words t of
Just created -> return created
Nothing -> do
putStrLn $ "Warning: unknown git log output: " ++ tshow t
return $ fromGregorian 1970 1 1
sid <- insert Snapshot
{ snapshotName = name
, snapshotGhc = display $ siGhcVersion $ bpSystemInfo bp
, snapshotCreated = created
}
forM_ allPackages $ \(display -> pname, (display -> version, isCore)) -> do
pid <- getPackageId pname
insert_ SnapshotPackage
{ snapshotPackageSnapshot = sid
, snapshotPackagePackage = pid
, snapshotPackageIsCore = isCore
, snapshotPackageVersion = version
}
case name of
SNLts x y -> insert_ Lts
{ ltsSnap = sid
, ltsMajor = x
, ltsMinor = y
}
SNNightly d -> insert_ Nightly
{ nightlySnap = sid
, nightlyDay = d
}
where
allPackages = mapToList
$ fmap (, True) (siCorePackages $ bpSystemInfo bp)
++ fmap ((, False) . ppVersion) (bpPackages bp)
addDocMap :: SnapName -> DocMap -> SqlPersistT (ResourceT IO) ()
addDocMap name dm = do
[sid] <- selectKeysList [SnapshotName ==. name] []
putStrLn $ "Adding doc map: " ++ toPathPiece name
forM_ (mapToList dm) $ \(pkg, pd) -> do
[pid] <- selectKeysList [PackageName ==. pkg] []
[spid] <- selectKeysList [SnapshotPackageSnapshot ==. sid, SnapshotPackagePackage ==. pid] []
forM_ (mapToList $ pdModules pd) $ \(mname, _paths) ->
insert_ Module
{ modulePackage = spid
, moduleName = mname
}
run :: GetStackageDatabase m => SqlPersistT IO a -> m a
run inner = do
StackageDatabase pool <- getStackageDatabase
liftIO $ runSqlPool inner pool
newestLTS :: GetStackageDatabase m => m (Maybe (Int, Int))
newestLTS =
run $ liftM (fmap go) $ selectFirst [] [Desc LtsMajor, Desc LtsMinor]
where
go (Entity _ lts) = (ltsMajor lts, ltsMinor lts)
newestLTSMajor :: GetStackageDatabase m => Int -> m (Maybe Int)
newestLTSMajor x =
run $ liftM (fmap $ ltsMinor . entityVal) $ selectFirst [LtsMajor ==. x] [Desc LtsMinor]
ltsMajorVersions :: GetStackageDatabase m => m [(Int, Int)]
ltsMajorVersions =
run $ liftM (dropOldMinors . map (toPair . entityVal))
$ selectList [] [Desc LtsMajor, Desc LtsMinor]
where
toPair (Lts _ x y) = (x, y)
dropOldMinors [] = []
dropOldMinors (l@(x, _):rest) =
l : dropOldMinors (dropWhile sameMinor rest)
where
sameMinor (y, _) = x == y
newestNightly :: GetStackageDatabase m => m (Maybe Day)
newestNightly =
run $ liftM (fmap $ nightlyDay . entityVal) $ selectFirst [] [Desc NightlyDay]
lookupSnapshot :: GetStackageDatabase m => SnapName -> m (Maybe (Entity Snapshot))
lookupSnapshot name = run $ getBy $ UniqueSnapshot name
snapshotTitle :: Snapshot -> Text
snapshotTitle s = prettyName (snapshotName s) (snapshotGhc s)
prettyName :: SnapName -> Text -> Text
prettyName name ghc =
concat [base, " - GHC ", ghc]
where
base =
case name of
SNLts x y -> concat ["LTS Haskell ", tshow x, ".", tshow y]
SNNightly d -> "Stackage Nightly " ++ tshow d
getAllPackages :: GetStackageDatabase m => m [(Text, Text, Text)] -- FIXME add information on whether included in LTS and Nightly
getAllPackages = liftM (map toPair) $ run $ do
E.select $ E.from $ \p -> do
E.orderBy [E.asc $ p E.^. PackageName]
return
( p E.^. PackageName
, p E.^. PackageLatest
, p E.^. PackageSynopsis
)
where
toPair (E.Value x, E.Value y, E.Value z) = (x, y, z)
data PackageListingInfo = PackageListingInfo
{ pliName :: !Text
, pliVersion :: !Text
, pliSynopsis :: !Text
, pliIsCore :: !Bool
}
getPackages :: GetStackageDatabase m => SnapshotId -> m [PackageListingInfo]
getPackages sid = liftM (map toPLI) $ run $ do
E.select $ E.from $ \(p,sp) -> do
E.where_ $
(p E.^. PackageId E.==. sp E.^. SnapshotPackagePackage) E.&&.
(sp E.^. SnapshotPackageSnapshot E.==. E.val sid)
E.orderBy [E.asc $ p E.^. PackageName]
return
( p E.^. PackageName
, p E.^. PackageSynopsis
, sp E.^. SnapshotPackageVersion
, sp E.^. SnapshotPackageIsCore
)
where
toPLI (E.Value name, E.Value synopsis, E.Value version, E.Value isCore) = PackageListingInfo
{ pliName = name
, pliVersion = version
, pliSynopsis = synopsis
, pliIsCore = isCore
}
data ModuleListingInfo = ModuleListingInfo
{ mliName :: !Text
, mliPackageVersion :: !Text
}
getSnapshotModules
:: GetStackageDatabase m
=> SnapshotId
-> m [ModuleListingInfo]
getSnapshotModules sid = liftM (map toMLI) $ run $ do
E.select $ E.from $ \(p,sp,m) -> do
E.where_ $
(p E.^. PackageId E.==. sp E.^. SnapshotPackagePackage) E.&&.
(sp E.^. SnapshotPackageSnapshot E.==. E.val sid) E.&&.
(m E.^. ModulePackage E.==. sp E.^. SnapshotPackageId)
E.orderBy
[ E.asc $ m E.^. ModuleName
, E.asc $ p E.^. PackageName
]
return
( m E.^. ModuleName
, p E.^. PackageName
, sp E.^. SnapshotPackageVersion
)
where
toMLI (E.Value name, E.Value pkg, E.Value version) = ModuleListingInfo
{ mliName = name
, mliPackageVersion = concat [pkg, "-", version]
}
getPackageModules
:: GetStackageDatabase m
=> SnapName
-> Text
-> m [Text]
getPackageModules sname pname = run $ do
sids <- selectKeysList [SnapshotName ==. sname] []
pids <- selectKeysList [PackageName ==. pname] []
case (,) <$> listToMaybe sids <*> listToMaybe pids of
Nothing -> return []
Just (sid, pid) -> do
spids <- selectKeysList
[ SnapshotPackageSnapshot ==. sid
, SnapshotPackagePackage ==. pid
] []
case spids of
spid:_ -> map (moduleName . entityVal)
<$> selectList [ModulePackage ==. spid] [Asc ModuleName]
[] -> return []
lookupSnapshotPackage
:: GetStackageDatabase m
=> SnapshotId
-> Text
-> m (Maybe (Entity SnapshotPackage))
lookupSnapshotPackage sid pname = run $ do
mp <- getBy $ UniquePackage pname
case mp of
Nothing -> return Nothing
Just (Entity pid _) -> getBy $ UniqueSnapshotPackage sid pid
getDeprecated :: GetStackageDatabase m => Text -> m (Bool, [Text])
getDeprecated name = run $ do
pids <- selectKeysList [PackageName ==. name] []
case pids of
[pid] -> do
mdep <- getBy $ UniqueDeprecated pid
case mdep of
Nothing -> return defRes
Just (Entity _ (Deprecated _ favors)) -> do
names <- mapM getName favors
return (True, catMaybes names)
_ -> return defRes
where
defRes = (False, [])
getName = fmap (fmap packageName) . get
data LatestInfo = LatestInfo
{ liSnapName :: !SnapName
, liVersion :: !Text
, liGhc :: !Text
}
deriving Show
getLatests :: GetStackageDatabase m
=> Text -- ^ package name
-> m [LatestInfo]
getLatests pname = run $ do
mnightly <- latestHelper pname $ \s ln -> s E.^. SnapshotId E.==. ln E.^. NightlySnap
mlts <- latestHelper pname $ \s ln -> s E.^. SnapshotId E.==. ln E.^. LtsSnap
return $ concat [mnightly, mlts]
latestHelper
:: (From E.SqlQuery E.SqlExpr SqlBackend t, MonadIO m, Functor m)
=> Text
-> (E.SqlExpr (Entity Snapshot) -> t -> E.SqlExpr (E.Value Bool))
-> ReaderT SqlBackend m [LatestInfo]
latestHelper pname clause = fmap (fmap toLatest) $ E.select $ E.from $ \(s,ln,p,sp) -> do
E.where_ $
clause s ln E.&&.
(s E.^. SnapshotId E.==. sp E.^. SnapshotPackageSnapshot) E.&&.
(p E.^. PackageName E.==. E.val pname) E.&&.
(p E.^. PackageId E.==. sp E.^. SnapshotPackagePackage)
E.orderBy [E.desc $ s E.^. SnapshotCreated]
E.limit 1
return
( s E.^. SnapshotName
, s E.^. SnapshotGhc
, sp E.^. SnapshotPackageVersion
)
where
toLatest (E.Value sname, E.Value ghc, E.Value version) = LatestInfo
{ liSnapName = sname
, liVersion = version
, liGhc = ghc
}
getDeps :: GetStackageDatabase m => Text -> m [(Text, Text)]
getDeps pname = run $ do
Just (Entity pid _) <- getBy $ UniquePackage pname
fmap (map toPair) $ E.select $ E.from $ \d -> do
E.where_ $
(d E.^. DepUser E.==. E.val pid)
E.orderBy [E.asc $ d E.^. DepUses]
return (d E.^. DepUses, d E.^. DepRange)
where
toPair (E.Value x, E.Value y) = (x, y)
getRevDeps :: GetStackageDatabase m => Text -> m [(Text, Text)]
getRevDeps pname = run $ do
fmap (map toPair) $ E.select $ E.from $ \(d,p) -> do
E.where_ $
(d E.^. DepUses E.==. E.val pname) E.&&.
(d E.^. DepUser E.==. p E.^. PackageId)
E.orderBy [E.asc $ p E.^. PackageName]
return (p E.^. PackageName, d E.^. DepRange)
where
toPair (E.Value x, E.Value y) = (x, y)
getPackage :: GetStackageDatabase m => Text -> m (Maybe (Entity Package))
getPackage = run . getBy . UniquePackage
getSnapshotsForPackage
:: GetStackageDatabase m
=> Text
-> m [(Snapshot, Text)] -- version
getSnapshotsForPackage pname = run $ do
pid <- getPackageId pname
sps <- selectList [SnapshotPackagePackage ==. pid] []
fmap catMaybes $ forM sps $ \(Entity _ sp) -> do
let sid = snapshotPackageSnapshot sp
ms <- get sid
return $ case ms of
Nothing -> Nothing
Just s -> Just (s, snapshotPackageVersion sp)
getSnapshots
:: GetStackageDatabase m
=> Int -- ^ limit
-> Int -- ^ offset
-> m (Int, [Snapshot])
getSnapshots l o = run $ (,)
<$> count ([] :: [Filter Snapshot])
<*> fmap (map entityVal) (selectList
[]
[LimitTo l, OffsetBy o, Desc SnapshotCreated])
last5Lts5Nightly :: GetStackageDatabase m => m [SnapName]
last5Lts5Nightly = run $ do
ls <- selectList [] [Desc LtsMajor, Desc LtsMinor, LimitTo 5]
ns <- selectList [] [Desc NightlyDay, LimitTo 5]
return $ map l ls ++ map n ns
where
l (Entity _ x) = SNLts (ltsMajor x) (ltsMinor x)
n (Entity _ x) = SNNightly (nightlyDay x)