module Staversion.Internal.Format
( formatResultsCabal
) where
import Data.Function (on)
import Data.List (intersperse)
import Data.Monoid (mempty, mconcat, (<>))
import qualified Data.Text.Lazy as TL
import Data.Text.Lazy.Builder (Builder, toLazyText, fromText, fromString)
import Data.Version (showVersion, Version)
import Staversion.Internal.Query
( Query(..),
sourceDesc,
PackageName
)
import Staversion.Internal.Result (Result(..), ResultBody(..))
import Staversion.Internal.Cabal (Target(..))
formatResultsCabal :: [Result] -> TL.Text
formatResultsCabal = toLazyText . mconcat . map formatResultBlock . makeSourceBlocks
groupAllPreservingOrderBy :: (a -> a -> Bool) -> [a] -> [[a]]
groupAllPreservingOrderBy sameGroup = map snd . foldr f [] where
f item acc = update [] acc where
update heads [] = (item, [item]) : heads
update heads (cur@(cur_item, cur_list) : rest) =
if sameGroup item cur_item
then ((cur_item, item : cur_list) : heads) ++ rest
else update (heads ++ [cur]) rest
type ResultLine = Either Builder Builder
data ResultBlock = RBHead Builder [ResultBlock]
| RBLines [ResultLine]
makeSourceBlocks :: [Result] -> [ResultBlock]
makeSourceBlocks = map sourceBlock . groupAllPreservingOrderBy ((==) `on` resultIn) where
sourceBlock [] = RBLines []
sourceBlock results@(head_ret : _) = RBHead header $ makeQueryBlocks results where
header = "------ " <> (fromText $ sourceDesc $ resultIn head_ret) <> header_real_source
header_real_source = maybe "" fromText $ resultReallyIn head_ret >>= \real_source -> do
return (" (" <> sourceDesc real_source <> ")")
makeQueryBlocks :: [Result] -> [ResultBlock]
makeQueryBlocks = uncurry prependLines . foldr f ([], []) where
prependLines blocks [] = blocks
prependLines blocks rlines = (RBLines rlines) : blocks
f ret (blocks, rlines) = case (resultFor ret, resultBody ret) of
(_, Right (SimpleResultBody name mver)) -> (blocks, (versionLine name mver) : rlines)
(_, Right (CabalResultBody file target pairs)) -> (cabalFileSuccessBlock file target pairs : prependLines blocks rlines, [])
((QueryName name), Left _) -> (blocks, (packageErrorLine name) : rlines)
((QueryCabalFile file), Left _) -> (cabalFileErrorBlock file : prependLines blocks rlines, [])
versionLine :: PackageName -> Maybe Version -> ResultLine
versionLine name Nothing = Left $ "-- " <> fromText name <> " N/A"
versionLine name (Just ver) = Right $ fromText name <> " ==" <> (fromString $ showVersion ver)
packageErrorLine :: PackageName -> ResultLine
packageErrorLine name = Left $ "-- " <> fromText name <> " ERROR"
cabalFileErrorBlock :: FilePath -> ResultBlock
cabalFileErrorBlock file = RBLines [Left line] where
line = "-- " <> fromString file <> " ERROR"
cabalFileSuccessBlock :: FilePath -> Target -> [(PackageName, Maybe Version)] -> ResultBlock
cabalFileSuccessBlock file target pairs = RBHead header [RBLines $ map (uncurry versionLine) pairs] where
header = "-- " <> fromString file <> " - " <> target_text
target_text = case target of
TargetLibrary -> "library"
TargetExecutable n -> "executable " <> fromText n
TargetTestSuite n -> "test-suite " <> fromText n
TargetBenchmark n -> "benchmark " <> fromText n
formatResultBlock :: ResultBlock -> Builder
formatResultBlock (RBHead header blocks) = header <> "\n" <> mconcat (map formatResultBlock blocks)
formatResultBlock (RBLines rlines) = (mconcat $ map ((<> "\n") . either id id) $ tailCommas rlines) <> "\n" where
tailCommas = fst . foldr f ([], False)
f eb (ret, flag) = let (next_e, next_flag) = getNext ret flag eb
in (next_e:ret, next_flag)
getNext [] flag e@(Left _) = (e, flag)
getNext _ flag (Left b) = (Left (b <> ","), flag)
getNext _ False e@(Right _) = (e, True)
getNext _ True (Right b) = (Right (b <> ","), True)